diff options
| author | drochner <drochner@NetBSD.org> | 2007-03-20 18:05:25 +0000 |
|---|---|---|
| committer | drochner <drochner@NetBSD.org> | 2007-03-20 18:05:25 +0000 |
| commit | 2d9e04fc35ca8ddfed6238ce480db06ec7d7d76e (patch) | |
| tree | eba0e8e954885cfb2067de846ecfd99f432a0b9c /sys/dev/drm | |
| parent | f8ef9d143184e5e22d51bde02aecb408dc9e3925 (diff) | |
Import DRM drivers, brought into shape by Yorick Hardy, posted to tech-x11.
Minor modifications by me:
-use an mi device major number
-(coarsly) divided into pci card specific and less specific parts, moved
the latter to dev/drm
-renamed autoconf attributes to reflect this
Todo:
-adapt all card frontends but i915 to drm include file location
-review the mtrr change
-make the change to agp_i810.c coexist with the fix for buggy VESA
BIOSes which is commented out temporarily
-RCS IDs etc style stuff
-LKM support (rescan support for vga)
-test
Diffstat (limited to 'sys/dev/drm')
| -rw-r--r-- | sys/dev/drm/drm.h | 713 | ||||
| -rw-r--r-- | sys/dev/drm/drmP.h | 1111 | ||||
| -rw-r--r-- | sys/dev/drm/drm_agpsupport.c | 474 | ||||
| -rw-r--r-- | sys/dev/drm/drm_atomic.h | 146 | ||||
| -rw-r--r-- | sys/dev/drm/drm_auth.c | 181 | ||||
| -rw-r--r-- | sys/dev/drm/drm_bufs.c | 1156 | ||||
| -rw-r--r-- | sys/dev/drm/drm_context.c | 350 | ||||
| -rw-r--r-- | sys/dev/drm/drm_dma.c | 135 | ||||
| -rw-r--r-- | sys/dev/drm/drm_drawable.c | 56 | ||||
| -rw-r--r-- | sys/dev/drm/drm_drv.c | 1056 | ||||
| -rw-r--r-- | sys/dev/drm/drm_fops.c | 139 | ||||
| -rw-r--r-- | sys/dev/drm/drm_ioctl.c | 306 | ||||
| -rw-r--r-- | sys/dev/drm/drm_irq.c | 314 | ||||
| -rw-r--r-- | sys/dev/drm/drm_linux_list.h | 76 | ||||
| -rw-r--r-- | sys/dev/drm/drm_lock.c | 182 | ||||
| -rw-r--r-- | sys/dev/drm/drm_memory.c | 202 | ||||
| -rw-r--r-- | sys/dev/drm/drm_pci.c | 155 | ||||
| -rw-r--r-- | sys/dev/drm/drm_sarea.h | 83 | ||||
| -rw-r--r-- | sys/dev/drm/drm_scatter.c | 134 | ||||
| -rw-r--r-- | sys/dev/drm/drm_sysctl.c | 409 | ||||
| -rw-r--r-- | sys/dev/drm/drm_vm.c | 140 | ||||
| -rw-r--r-- | sys/dev/drm/files.drm | 21 |
22 files changed, 7539 insertions, 0 deletions
diff --git a/sys/dev/drm/drm.h b/sys/dev/drm/drm.h new file mode 100644 index 00000000000..5f26668891f --- /dev/null +++ b/sys/dev/drm/drm.h @@ -0,0 +1,713 @@ +/** + * \file drm.h + * Header for the Direct Rendering Manager + * + * \author Rickard E. (Rik) Faith <faith@valinux.com> + * + * \par Acknowledgments: + * Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic \c cmpxchg. + */ + +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm.h,v 1.12 2006/05/17 06:36:28 anholt Exp $"); +*/ + +/** + * \mainpage + * + * The Direct Rendering Manager (DRM) is a device-independent kernel-level + * device driver that provides support for the XFree86 Direct Rendering + * Infrastructure (DRI). + * + * The DRM supports the Direct Rendering Infrastructure (DRI) in four major + * ways: + * -# The DRM provides synchronized access to the graphics hardware via + * the use of an optimized two-tiered lock. + * -# The DRM enforces the DRI security policy for access to the graphics + * hardware by only allowing authenticated X11 clients access to + * restricted regions of memory. + * -# The DRM provides a generic DMA engine, complete with multiple + * queues and the ability to detect the need for an OpenGL context + * switch. + * -# The DRM is extensible via the use of small device-specific modules + * that rely extensively on the API exported by the DRM module. + * + */ + +#ifndef _DRM_H_ +#define _DRM_H_ + +#ifndef __user +#define __user +#endif + +#ifdef __GNUC__ +# define DEPRECATED __attribute__ ((deprecated)) +#else +# define DEPRECATED +#endif + +#if defined(__linux__) +#if defined(__KERNEL__) +#include <linux/config.h> +#endif +#include <asm/ioctl.h> /* For _IO* macros */ +#define DRM_IOCTL_NR(n) _IOC_NR(n) +#define DRM_IOC_VOID _IOC_NONE +#define DRM_IOC_READ _IOC_READ +#define DRM_IOC_WRITE _IOC_WRITE +#define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE +#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) +#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && defined(IN_MODULE) +/* Prevent name collision when including sys/ioccom.h */ +#undef ioctl +#include <sys/ioccom.h> +#define ioctl(a,b,c) xf86ioctl(a,b,c) +#else +#include <sys/ioccom.h> +#endif /* __FreeBSD__ && xf86ioctl */ +#define DRM_IOCTL_NR(n) ((n) & 0xff) +#define DRM_IOC_VOID IOC_VOID +#define DRM_IOC_READ IOC_OUT +#define DRM_IOC_WRITE IOC_IN +#define DRM_IOC_READWRITE IOC_INOUT +#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size) +#endif + +#define XFREE86_VERSION(major,minor,patch,snap) \ + ((major << 16) | (minor << 8) | patch) + +#ifndef CONFIG_XFREE86_VERSION +#define CONFIG_XFREE86_VERSION XFREE86_VERSION(4,1,0,0) +#endif + +#if CONFIG_XFREE86_VERSION < XFREE86_VERSION(4,1,0,0) +#define DRM_PROC_DEVICES "/proc/devices" +#define DRM_PROC_MISC "/proc/misc" +#define DRM_PROC_DRM "/proc/drm" +#define DRM_DEV_DRM "/dev/drm" +#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) +#define DRM_DEV_UID 0 +#define DRM_DEV_GID 0 +#endif + +#if CONFIG_XFREE86_VERSION >= XFREE86_VERSION(4,1,0,0) +#ifdef __OpenBSD__ +#define DRM_MAJOR 81 +#endif +#if defined(__linux__) || defined(__NetBSD__) +#define DRM_MAJOR 226 +#endif +#define DRM_MAX_MINOR 15 +#endif +#define DRM_NAME "drm" /**< Name in kernel, /dev, and /proc */ +#define DRM_MIN_ORDER 5 /**< At least 2^5 bytes = 32 bytes */ +#define DRM_MAX_ORDER 22 /**< Up to 2^22 bytes = 4MB */ +#define DRM_RAM_PERCENT 10 /**< How much system ram can we lock? */ + +#define _DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */ +#define _DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */ +#define _DRM_LOCK_IS_HELD(lock) ((lock) & _DRM_LOCK_HELD) +#define _DRM_LOCK_IS_CONT(lock) ((lock) & _DRM_LOCK_CONT) +#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT)) + +#if defined(__linux__) +typedef unsigned int drm_handle_t; +#else +typedef unsigned long drm_handle_t; /**< To mapped regions */ +#endif +typedef unsigned int drm_context_t; /**< GLXContext handle */ +typedef unsigned int drm_drawable_t; +typedef unsigned int drm_magic_t; /**< Magic for authentication */ + +/** + * Cliprect. + * + * \warning If you change this structure, make sure you change + * XF86DRIClipRectRec in the server as well + * + * \note KW: Actually it's illegal to change either for + * backwards-compatibility reasons. + */ +typedef struct drm_clip_rect { + unsigned short x1; + unsigned short y1; + unsigned short x2; + unsigned short y2; +} drm_clip_rect_t; + +/** + * Texture region, + */ +typedef struct drm_tex_region { + unsigned char next; + unsigned char prev; + unsigned char in_use; + unsigned char padding; + unsigned int age; +} drm_tex_region_t; + +/** + * Hardware lock. + * + * The lock structure is a simple cache-line aligned integer. To avoid + * processor bus contention on a multiprocessor system, there should not be any + * other data stored in the same cache line. + */ +typedef struct drm_hw_lock { + __volatile__ unsigned int lock; /**< lock variable */ + char padding[60]; /**< Pad to cache line */ +} drm_hw_lock_t; + +/* This is beyond ugly, and only works on GCC. However, it allows me to use + * drm.h in places (i.e., in the X-server) where I can't use size_t. The real + * fix is to use uint32_t instead of size_t, but that fix will break existing + * LP64 (i.e., PowerPC64, SPARC64, IA-64, Alpha, etc.) systems. That *will* + * eventually happen, though. I chose 'unsigned long' to be the fallback type + * because that works on all the platforms I know about. Hopefully, the + * real fix will happen before that bites us. + */ + +#ifdef __SIZE_TYPE__ +# define DRM_SIZE_T __SIZE_TYPE__ +#else +# warning "__SIZE_TYPE__ not defined. Assuming sizeof(size_t) == sizeof(unsigned long)!" +# define DRM_SIZE_T unsigned long +#endif + +/** + * DRM_IOCTL_VERSION ioctl argument type. + * + * \sa drmGetVersion(). + */ +typedef struct drm_version { + int version_major; /**< Major version */ + int version_minor; /**< Minor version */ + int version_patchlevel; /**< Patch level */ + DRM_SIZE_T name_len; /**< Length of name buffer */ + char __user *name; /**< Name of driver */ + DRM_SIZE_T date_len; /**< Length of date buffer */ + char __user *date; /**< User-space buffer to hold date */ + DRM_SIZE_T desc_len; /**< Length of desc buffer */ + char __user *desc; /**< User-space buffer to hold desc */ +} drm_version_t; + +/** + * DRM_IOCTL_GET_UNIQUE ioctl argument type. + * + * \sa drmGetBusid() and drmSetBusId(). + */ +typedef struct drm_unique { + DRM_SIZE_T unique_len; /**< Length of unique */ + char __user *unique; /**< Unique name for driver instantiation */ +} drm_unique_t; + +#undef DRM_SIZE_T + +typedef struct drm_list { + int count; /**< Length of user-space structures */ + drm_version_t __user *version; +} drm_list_t; + +typedef struct drm_block { + int unused; +} drm_block_t; + +/** + * DRM_IOCTL_CONTROL ioctl argument type. + * + * \sa drmCtlInstHandler() and drmCtlUninstHandler(). + */ +typedef struct drm_control { + enum { + DRM_ADD_COMMAND, + DRM_RM_COMMAND, + DRM_INST_HANDLER, + DRM_UNINST_HANDLER + } func; + int irq; +} drm_control_t; + +/** + * Type of memory to map. + */ +typedef enum drm_map_type { + _DRM_FRAME_BUFFER = 0, /**< WC (no caching), no core dump */ + _DRM_REGISTERS = 1, /**< no caching, no core dump */ + _DRM_SHM = 2, /**< shared, cached */ + _DRM_AGP = 3, /**< AGP/GART */ + _DRM_SCATTER_GATHER = 4, /**< Scatter/gather memory for PCI DMA */ + _DRM_CONSISTENT = 5 /**< Consistent memory for PCI DMA */ +} drm_map_type_t; + +/** + * Memory mapping flags. + */ +typedef enum drm_map_flags { + _DRM_RESTRICTED = 0x01, /**< Cannot be mapped to user-virtual */ + _DRM_READ_ONLY = 0x02, + _DRM_LOCKED = 0x04, /**< shared, cached, locked */ + _DRM_KERNEL = 0x08, /**< kernel requires access */ + _DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */ + _DRM_CONTAINS_LOCK = 0x20, /**< SHM page that contains lock */ + _DRM_REMOVABLE = 0x40 /**< Removable mapping */ +} drm_map_flags_t; + +typedef struct drm_ctx_priv_map { + unsigned int ctx_id; /**< Context requesting private mapping */ + void *handle; /**< Handle of map */ +} drm_ctx_priv_map_t; + +/** + * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls + * argument type. + * + * \sa drmAddMap(). + */ +typedef struct drm_map { + unsigned long offset; /**< Requested physical address (0 for SAREA)*/ + unsigned long size; /**< Requested physical size (bytes) */ + drm_map_type_t type; /**< Type of memory to map */ + drm_map_flags_t flags; /**< Flags */ + void *handle; /**< User-space: "Handle" to pass to mmap() */ + /**< Kernel-space: kernel-virtual address */ + int mtrr; /**< MTRR slot used */ + /* Private data */ +} drm_map_t; + +/** + * DRM_IOCTL_GET_CLIENT ioctl argument type. + */ +typedef struct drm_client { + int idx; /**< Which client desired? */ + int auth; /**< Is client authenticated? */ + unsigned long pid; /**< Process ID */ + unsigned long uid; /**< User ID */ + unsigned long magic; /**< Magic */ + unsigned long iocs; /**< Ioctl count */ +} drm_client_t; + +typedef enum { + _DRM_STAT_LOCK, + _DRM_STAT_OPENS, + _DRM_STAT_CLOSES, + _DRM_STAT_IOCTLS, + _DRM_STAT_LOCKS, + _DRM_STAT_UNLOCKS, + _DRM_STAT_VALUE, /**< Generic value */ + _DRM_STAT_BYTE, /**< Generic byte counter (1024bytes/K) */ + _DRM_STAT_COUNT, /**< Generic non-byte counter (1000/k) */ + + _DRM_STAT_IRQ, /**< IRQ */ + _DRM_STAT_PRIMARY, /**< Primary DMA bytes */ + _DRM_STAT_SECONDARY, /**< Secondary DMA bytes */ + _DRM_STAT_DMA, /**< DMA */ + _DRM_STAT_SPECIAL, /**< Special DMA (e.g., priority or polled) */ + _DRM_STAT_MISSED /**< Missed DMA opportunity */ + /* Add to the *END* of the list */ +} drm_stat_type_t; + +/** + * DRM_IOCTL_GET_STATS ioctl argument type. + */ +typedef struct drm_stats { + unsigned long count; + struct { + unsigned long value; + drm_stat_type_t type; + } data[15]; +} drm_stats_t; + +/** + * Hardware locking flags. + */ +typedef enum drm_lock_flags { + _DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */ + _DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */ + _DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */ + _DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */ + /* These *HALT* flags aren't supported yet + -- they will be used to support the + full-screen DGA-like mode. */ + _DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */ + _DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */ +} drm_lock_flags_t; + +/** + * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type. + * + * \sa drmGetLock() and drmUnlock(). + */ +typedef struct drm_lock { + int context; + drm_lock_flags_t flags; +} drm_lock_t; + +/** + * DMA flags + * + * \warning + * These values \e must match xf86drm.h. + * + * \sa drm_dma. + */ +typedef enum drm_dma_flags { + /* Flags for DMA buffer dispatch */ + _DRM_DMA_BLOCK = 0x01, /**< + * Block until buffer dispatched. + * + * \note The buffer may not yet have + * been processed by the hardware -- + * getting a hardware lock with the + * hardware quiescent will ensure + * that the buffer has been + * processed. + */ + _DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */ + _DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */ + + /* Flags for DMA buffer request */ + _DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */ + _DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */ + _DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */ +} drm_dma_flags_t; + +/** + * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type. + * + * \sa drmAddBufs(). + */ +typedef struct drm_buf_desc { + int count; /**< Number of buffers of this size */ + int size; /**< Size in bytes */ + int low_mark; /**< Low water mark */ + int high_mark; /**< High water mark */ + enum { + _DRM_PAGE_ALIGN = 0x01, /**< Align on page boundaries for DMA */ + _DRM_AGP_BUFFER = 0x02, /**< Buffer is in AGP space */ + _DRM_SG_BUFFER = 0x04, /**< Scatter/gather memory buffer */ + _DRM_FB_BUFFER = 0x08 /**< Buffer is in frame buffer */ + } flags; + unsigned long agp_start; /**< + * Start address of where the AGP buffers are + * in the AGP aperture + */ +} drm_buf_desc_t; + +/** + * DRM_IOCTL_INFO_BUFS ioctl argument type. + */ +typedef struct drm_buf_info { + int count; /**< Number of buffers described in list */ + drm_buf_desc_t __user *list; /**< List of buffer descriptions */ +} drm_buf_info_t; + +/** + * DRM_IOCTL_FREE_BUFS ioctl argument type. + */ +typedef struct drm_buf_free { + int count; + int __user *list; +} drm_buf_free_t; + +/** + * Buffer information + * + * \sa drm_buf_map. + */ +typedef struct drm_buf_pub { + int idx; /**< Index into the master buffer list */ + int total; /**< Buffer size */ + int used; /**< Amount of buffer in use (for DMA) */ + void __user *address; /**< Address of buffer */ +} drm_buf_pub_t; + +/** + * DRM_IOCTL_MAP_BUFS ioctl argument type. + */ +typedef struct drm_buf_map { + int count; /**< Length of the buffer list */ +#if defined(__cplusplus) + void __user *c_virtual; +#else + void __user *virtual; /**< Mmap'd area in user-virtual */ +#endif + drm_buf_pub_t __user *list; /**< Buffer information */ +} drm_buf_map_t; + +/** + * DRM_IOCTL_DMA ioctl argument type. + * + * Indices here refer to the offset into the buffer list in drm_buf_get. + * + * \sa drmDMA(). + */ +typedef struct drm_dma { + int context; /**< Context handle */ + int send_count; /**< Number of buffers to send */ + int __user *send_indices; /**< List of handles to buffers */ + int __user *send_sizes; /**< Lengths of data to send */ + drm_dma_flags_t flags; /**< Flags */ + int request_count; /**< Number of buffers requested */ + int request_size; /**< Desired size for buffers */ + int __user *request_indices; /**< Buffer information */ + int __user *request_sizes; + int granted_count; /**< Number of buffers granted */ +} drm_dma_t; + +typedef enum { + _DRM_CONTEXT_PRESERVED = 0x01, + _DRM_CONTEXT_2DONLY = 0x02 +} drm_ctx_flags_t; + +/** + * DRM_IOCTL_ADD_CTX ioctl argument type. + * + * \sa drmCreateContext() and drmDestroyContext(). + */ +typedef struct drm_ctx { + drm_context_t handle; + drm_ctx_flags_t flags; +} drm_ctx_t; + +/** + * DRM_IOCTL_RES_CTX ioctl argument type. + */ +typedef struct drm_ctx_res { + int count; + drm_ctx_t __user *contexts; +} drm_ctx_res_t; + +/** + * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type. + */ +typedef struct drm_draw { + drm_drawable_t handle; +} drm_draw_t; + +/** + * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type. + */ +typedef struct drm_auth { + drm_magic_t magic; +} drm_auth_t; + +/** + * DRM_IOCTL_IRQ_BUSID ioctl argument type. + * + * \sa drmGetInterruptFromBusID(). + */ +typedef struct drm_irq_busid { + int irq; /**< IRQ number */ + int busnum; /**< bus number */ + int devnum; /**< device number */ + int funcnum; /**< function number */ +} drm_irq_busid_t; + +typedef enum { + _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ + _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ + _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */ +} drm_vblank_seq_type_t; + +#define _DRM_VBLANK_FLAGS_MASK _DRM_VBLANK_SIGNAL + +struct drm_wait_vblank_request { + drm_vblank_seq_type_t type; + unsigned int sequence; + unsigned long signal; +}; + +struct drm_wait_vblank_reply { + drm_vblank_seq_type_t type; + unsigned int sequence; + long tval_sec; + long tval_usec; +}; + +/** + * DRM_IOCTL_WAIT_VBLANK ioctl argument type. + * + * \sa drmWaitVBlank(). + */ +typedef union drm_wait_vblank { + struct drm_wait_vblank_request request; + struct drm_wait_vblank_reply reply; +} drm_wait_vblank_t; + +/** + * DRM_IOCTL_AGP_ENABLE ioctl argument type. + * + * \sa drmAgpEnable(). + */ +typedef struct drm_agp_mode { + unsigned long mode; /**< AGP mode */ +} drm_agp_mode_t; + +/** + * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type. + * + * \sa drmAgpAlloc() and drmAgpFree(). + */ +typedef struct drm_agp_buffer { + unsigned long size; /**< In bytes -- will round to page boundary */ + unsigned long handle; /**< Used for binding / unbinding */ + unsigned long type; /**< Type of memory to allocate */ + unsigned long physical; /**< Physical used by i810 */ +} drm_agp_buffer_t; + +/** + * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type. + * + * \sa drmAgpBind() and drmAgpUnbind(). + */ +typedef struct drm_agp_binding { + unsigned long handle; /**< From drm_agp_buffer */ + unsigned long offset; /**< In bytes -- will round to page boundary */ +} drm_agp_binding_t; + +/** + * DRM_IOCTL_AGP_INFO ioctl argument type. + * + * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(), + * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(), + * drmAgpVendorId() and drmAgpDeviceId(). + */ +typedef struct drm_agp_info { + int agp_version_major; + int agp_version_minor; + unsigned long mode; + unsigned long aperture_base; /**< physical address */ + unsigned long aperture_size; /**< bytes */ + unsigned long memory_allowed; /**< bytes */ + unsigned long memory_used; + + /** \name PCI information */ + /*@{ */ + unsigned short id_vendor; + unsigned short id_device; + /*@} */ +} drm_agp_info_t; + +/** + * DRM_IOCTL_SG_ALLOC ioctl argument type. + */ +typedef struct drm_scatter_gather { + unsigned long size; /**< In bytes -- will round to page boundary */ + unsigned long handle; /**< Used for mapping / unmapping */ +} drm_scatter_gather_t; + +/** + * DRM_IOCTL_SET_VERSION ioctl argument type. + */ +typedef struct drm_set_version { + int drm_di_major; + int drm_di_minor; + int drm_dd_major; + int drm_dd_minor; +} drm_set_version_t; + +/** + * \name Ioctls Definitions + */ +/*@{*/ + +#define DRM_IOCTL_BASE 'd' +#define DRM_IO(nr) _IO(DRM_IOCTL_BASE,nr) +#define DRM_IOR(nr,type) _IOR(DRM_IOCTL_BASE,nr,type) +#define DRM_IOW(nr,type) _IOW(DRM_IOCTL_BASE,nr,type) +#define DRM_IOWR(nr,type) _IOWR(DRM_IOCTL_BASE,nr,type) + +#define DRM_IOCTL_VERSION DRM_IOWR(0x00, drm_version_t) +#define DRM_IOCTL_GET_UNIQUE DRM_IOWR(0x01, drm_unique_t) +#define DRM_IOCTL_GET_MAGIC DRM_IOR( 0x02, drm_auth_t) +#define DRM_IOCTL_IRQ_BUSID DRM_IOWR(0x03, drm_irq_busid_t) +#define DRM_IOCTL_GET_MAP DRM_IOWR(0x04, drm_map_t) +#define DRM_IOCTL_GET_CLIENT DRM_IOWR(0x05, drm_client_t) +#define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, drm_stats_t) +#define DRM_IOCTL_SET_VERSION DRM_IOWR(0x07, drm_set_version_t) + +#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, drm_unique_t) +#define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, drm_auth_t) +#define DRM_IOCTL_BLOCK DRM_IOWR(0x12, drm_block_t) +#define DRM_IOCTL_UNBLOCK DRM_IOWR(0x13, drm_block_t) +#define DRM_IOCTL_CONTROL DRM_IOW( 0x14, drm_control_t) +#define DRM_IOCTL_ADD_MAP DRM_IOWR(0x15, drm_map_t) +#define DRM_IOCTL_ADD_BUFS DRM_IOWR(0x16, drm_buf_desc_t) +#define DRM_IOCTL_MARK_BUFS DRM_IOW( 0x17, drm_buf_desc_t) +#define DRM_IOCTL_INFO_BUFS DRM_IOWR(0x18, drm_buf_info_t) +#define DRM_IOCTL_MAP_BUFS DRM_IOWR(0x19, drm_buf_map_t) +#define DRM_IOCTL_FREE_BUFS DRM_IOW( 0x1a, drm_buf_free_t) + +#define DRM_IOCTL_RM_MAP DRM_IOW( 0x1b, drm_map_t) + +#define DRM_IOCTL_SET_SAREA_CTX DRM_IOW( 0x1c, drm_ctx_priv_map_t) +#define DRM_IOCTL_GET_SAREA_CTX DRM_IOWR(0x1d, drm_ctx_priv_map_t) + +#define DRM_IOCTL_ADD_CTX DRM_IOWR(0x20, drm_ctx_t) +#define DRM_IOCTL_RM_CTX DRM_IOWR(0x21, drm_ctx_t) +#define DRM_IOCTL_MOD_CTX DRM_IOW( 0x22, drm_ctx_t) +#define DRM_IOCTL_GET_CTX DRM_IOWR(0x23, drm_ctx_t) +#define DRM_IOCTL_SWITCH_CTX DRM_IOW( 0x24, drm_ctx_t) +#define DRM_IOCTL_NEW_CTX DRM_IOW( 0x25, drm_ctx_t) +#define DRM_IOCTL_RES_CTX DRM_IOWR(0x26, drm_ctx_res_t) +#define DRM_IOCTL_ADD_DRAW DRM_IOWR(0x27, drm_draw_t) +#define DRM_IOCTL_RM_DRAW DRM_IOWR(0x28, drm_draw_t) +#define DRM_IOCTL_DMA DRM_IOWR(0x29, drm_dma_t) +#define DRM_IOCTL_LOCK DRM_IOW( 0x2a, drm_lock_t) +#define DRM_IOCTL_UNLOCK DRM_IOW( 0x2b, drm_lock_t) +#define DRM_IOCTL_FINISH DRM_IOW( 0x2c, drm_lock_t) + +#define DRM_IOCTL_AGP_ACQUIRE DRM_IO( 0x30) +#define DRM_IOCTL_AGP_RELEASE DRM_IO( 0x31) +#define DRM_IOCTL_AGP_ENABLE DRM_IOW( 0x32, drm_agp_mode_t) +#define DRM_IOCTL_AGP_INFO DRM_IOR( 0x33, drm_agp_info_t) +#define DRM_IOCTL_AGP_ALLOC DRM_IOWR(0x34, drm_agp_buffer_t) +#define DRM_IOCTL_AGP_FREE DRM_IOW( 0x35, drm_agp_buffer_t) +#define DRM_IOCTL_AGP_BIND DRM_IOW( 0x36, drm_agp_binding_t) +#define DRM_IOCTL_AGP_UNBIND DRM_IOW( 0x37, drm_agp_binding_t) + +#define DRM_IOCTL_SG_ALLOC DRM_IOW( 0x38, drm_scatter_gather_t) +#define DRM_IOCTL_SG_FREE DRM_IOW( 0x39, drm_scatter_gather_t) + +#define DRM_IOCTL_WAIT_VBLANK DRM_IOWR(0x3a, drm_wait_vblank_t) + +/*@}*/ + +/** + * Device specific ioctls should only be in their respective headers + * The device specific ioctl range is from 0x40 to 0x79. + * + * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and + * drmCommandReadWrite(). + */ +#define DRM_COMMAND_BASE 0x40 + +#endif diff --git a/sys/dev/drm/drmP.h b/sys/dev/drm/drmP.h new file mode 100644 index 00000000000..7ab2fc11437 --- /dev/null +++ b/sys/dev/drm/drmP.h @@ -0,0 +1,1111 @@ +/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*- + * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drmP.h,v 1.18 2006/11/06 13:41:53 rwatson Exp $"); +*/ + +#ifndef _DRM_P_H_ +#define _DRM_P_H_ + +#if defined(_KERNEL) || defined(__KERNEL__) + +typedef struct drm_device drm_device_t; +typedef struct drm_file drm_file_t; + +#include <sys/param.h> +#include <sys/queue.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#ifdef __FreeBSD__ +#include <sys/module.h> +#endif +#include <sys/systm.h> +#include <sys/conf.h> +#include <sys/stat.h> +#if __FreeBSD_version >= 700000 +#include <sys/priv.h> +#endif +#include <sys/proc.h> +#include <sys/lock.h> +#include <sys/fcntl.h> +#include <sys/uio.h> +#include <sys/filio.h> +#include <sys/sysctl.h> +#include <sys/signalvar.h> +#include <sys/poll.h> +#ifdef __FreeBSD__ +#include <sys/bus.h> +#include <vm/vm.h> +#include <vm/pmap.h> +#include <vm/vm_extern.h> +#include <vm/vm_map.h> +#include <vm/vm_param.h> +#include <machine/pmap.h> +#include <machine/resource.h> +#endif +#include <machine/param.h> +#include <machine/bus.h> +#include <machine/sysarch.h> +#include <sys/endian.h> +#include <sys/mman.h> +#if defined(__FreeBSD__) +#include <sys/bus.h> +#include <sys/rman.h> +#include <sys/memrange.h> +#include <pci/agpvar.h> +#include <sys/agpio.h> +#if __FreeBSD_version >= 500000 +#include <sys/mutex.h> +#include <dev/pci/pcivar.h> +#include <sys/selinfo.h> +#else /* __FreeBSD_version >= 500000 */ +#include <pci/pcivar.h> +#include <sys/select.h> +#endif /* __FreeBSD_version < 500000 */ +#elif defined(__NetBSD__) +#include <machine/mtrr.h> +#include <sys/vnode.h> +#include <sys/select.h> +#include <sys/device.h> +#include <sys/resourcevar.h> +#include <sys/agpio.h> +#include <sys/ttycom.h> +#include <sys/mman.h> +#include <sys/kauth.h> +#include <sys/types.h> +#include <sys/file.h> +#include <uvm/uvm.h> +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcidevs.h> +#include <dev/pci/agpvar.h> +#elif defined(__OpenBSD__) +#include <sys/lkm.h> +#include <uvm/uvm.h> +#endif + +#include "drm.h" +#include "drm_linux_list.h" +#include "drm_atomic.h" + +#if defined(__FreeBSD__) || defined(__NetBSD__) +#include <opt_drm.h> +#ifdef DRM_DEBUG +#undef DRM_DEBUG +#define DRM_DEBUG_DEFAULT_ON 1 +#endif /* DRM_DEBUG */ +#endif + +#if defined(DRM_LINUX) && DRM_LINUX && !defined(__amd64__) +#include <sys/file.h> +#include <sys/proc.h> +#include <machine/../linux/linux.h> +#include <machine/../linux/linux_proto.h> +#else +/* Either it was defined when it shouldn't be (FreeBSD amd64) or it isn't + * supported on this OS yet. + */ +#undef DRM_LINUX +#define DRM_LINUX 0 +#endif + +#define DRM_HASH_SIZE 16 /* Size of key hash table */ +#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */ +#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */ + +#define DRM_MEM_DMA 0 +#define DRM_MEM_SAREA 1 +#define DRM_MEM_DRIVER 2 +#define DRM_MEM_MAGIC 3 +#define DRM_MEM_IOCTLS 4 +#define DRM_MEM_MAPS 5 +#define DRM_MEM_BUFS 6 +#define DRM_MEM_SEGS 7 +#define DRM_MEM_PAGES 8 +#define DRM_MEM_FILES 9 +#define DRM_MEM_QUEUES 10 +#define DRM_MEM_CMDS 11 +#define DRM_MEM_MAPPINGS 12 +#define DRM_MEM_BUFLISTS 13 +#define DRM_MEM_AGPLISTS 14 +#define DRM_MEM_TOTALAGP 15 +#define DRM_MEM_BOUNDAGP 16 +#define DRM_MEM_CTXBITMAP 17 +#define DRM_MEM_STUB 18 +#define DRM_MEM_SGLISTS 19 + +#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8) + + /* Internal types and structures */ +#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) +#define DRM_MIN(a,b) ((a)<(b)?(a):(b)) +#define DRM_MAX(a,b) ((a)>(b)?(a):(b)) + +#define DRM_IF_VERSION(maj, min) (maj << 16 | min) + +MALLOC_DECLARE(M_DRM); + +#define __OS_HAS_AGP 1 + +#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) +#define DRM_DEV_UID 0 +#define DRM_DEV_GID 0 + +#define wait_queue_head_t atomic_t +#define DRM_WAKEUP(w) wakeup((void *)w) +#define DRM_WAKEUP_INT(w) wakeup(w) +#define DRM_INIT_WAITQUEUE(queue) do {(void)(queue);} while (0) + +#if defined(__FreeBSD__) && __FreeBSD_version < 502109 +#define bus_alloc_resource_any(dev, type, rid, flags) \ + bus_alloc_resource(dev, type, rid, 0ul, ~0ul, 1, flags) +#endif + +#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 +#define DRM_CDEV struct cdev * +#define DRM_CURPROC curthread +#define DRM_STRUCTPROC struct thread +#define DRM_STRUCTCDEVPROC struct thread +#define DRM_SPINTYPE struct mtx +#define DRM_SPININIT(l,name) mtx_init(&l, name, NULL, MTX_DEF) +#define DRM_SPINUNINIT(l) mtx_destroy(&l) +#define DRM_SPINLOCK(l) mtx_lock(l) +#define DRM_SPINUNLOCK(u) mtx_unlock(u); +#define DRM_SPINLOCK_ASSERT(l) mtx_assert(l, MA_OWNED) +#define DRM_CURRENTPID curthread->td_proc->p_pid +#define DRM_LOCK() mtx_lock(&dev->dev_lock) +#define DRM_UNLOCK() mtx_unlock(&dev->dev_lock) +#define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) +#else /* __FreeBSD__ && __FreeBSD_version >= 500000 */ +#ifdef __NetBSD__ +#define DRM_CDEV dev_t +#define DRM_CURPROC curproc +#define DRM_STRUCTPROC struct proc +#define DRM_STRUCTCDEVPROC struct lwp +#define DRM_NOOP do {} while(0) +#define DRM_SPINTYPE struct simplelock +#define DRM_SPININIT(l,name) simple_lock_init(&l) +#define DRM_SPINUNINIT(l) DRM_NOOP +#define DRM_SPINLOCK(l) if(!simple_lock_try(l)) simple_lock(l) +#define DRM_SPINUNLOCK(u) simple_unlock(u) +#define DRM_SPINLOCK_ASSERT(l) DRM_NOOP +#define DRM_LOCK() DRM_SPINLOCK(&dev->dev_lock) +#define DRM_UNLOCK() DRM_SPINUNLOCK(&dev->dev_lock) +#define spldrm() spltty() +#define DRM_CURRENTPID curproc->p_pid +#define DRM_SYSCTL_HANDLER_ARGS (SYSCTLFN_ARGS) +#else +#define DRM_CDEV struct cdev * +#define DRM_CURPROC curproc +#define DRM_STRUCTPROC struct proc +#define DRM_SPINTYPE struct simplelock +#define DRM_SPININIT(l,name) +#define DRM_SPINUNINIT(l) +#define DRM_SPINLOCK(l) +#define DRM_SPINUNLOCK(u) +#define DRM_SPINLOCK_ASSERT(l) +#define DRM_CURRENTPID curproc->p_pid +#define DRM_LOCK() +#define DRM_UNLOCK() +#define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS +#define spldrm() spltty() +#endif /* __NetBSD__ */ +#endif /* __NetBSD__ || __OpenBSD__ */ + +/* Currently our DRMFILE (filp) is a void * which is actually the pid + * of the current process. It should be a per-open unique pointer, but + * code for that is not yet written */ +#define DRMFILE void * +#define DRM_IRQ_ARGS void *arg +#ifdef __FreeBSD__ +typedef void irqreturn_t; +#define IRQ_HANDLED /* nothing */ +#define IRQ_NONE /* nothing */ +#elif defined(__NetBSD__) +typedef int irqreturn_t; +#define IRQ_HANDLED 0 +#define IRQ_NONE 0 +#endif + +enum { + DRM_IS_NOT_AGP, + DRM_IS_AGP, + DRM_MIGHT_BE_AGP +}; +#define DRM_AGP_MEM struct agp_memory_info + +#if defined(__FreeBSD__) +#define DRM_DEVICE \ + drm_device_t *dev = kdev->si_drv1 +#define DRM_IOCTL_ARGS struct cdev *kdev, u_long cmd, caddr_t data, \ + int flags, DRM_STRUCTPROC *p, DRMFILE filp + +#define PAGE_ALIGN(addr) round_page(addr) +/* DRM_SUSER returns true if the user is superuser */ +#if __FreeBSD_version >= 700000 +#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0) +#else +#define DRM_SUSER(p) (suser(p) == 0) +#endif +#define DRM_AGP_FIND_DEVICE() agp_find_device() +#define DRM_MTRR_WC MDF_WRITECOMBINE +#define jiffies ticks + +#else /* __FreeBSD__ */ + +#if defined(__NetBSD__) +#define DRM_SUSER(p) (kauth_cred_getsvuid((p)->p_cred) == 0) +#define DRM_MAXUNITS 128 +extern drm_device_t *drm_units[]; +#define DRM_DEVICE \ + drm_device_t *dev = (minor(kdev) < DRM_MAXUNITS) ? \ + drm_units[minor(kdev)] : NULL +#elif defined(__OpenBSD__) +#define DRM_DEVICE \ +#define DRM_SUSER(p) (suser(p->p_ucred, &p->p_acflag) == 0) + drm_device_t *dev = (device_lookup(&drm_cd, \ + minor(kdev)))->dv_cfdata->cf_driver->cd_devs[minor(kdev)] +#endif /* __OpenBSD__ */ +#define DRM_IOCTL_ARGS dev_t kdev, u_long cmd, caddr_t data, \ + int flags, DRM_STRUCTCDEVPROC *p, DRMFILE filp + +#define CDEV_MAJOR 34 +#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) +/* DRM_SUSER returns true if the user is superuser */ +#define DRM_AGP_FIND_DEVICE() agp_find_device(0) +#define DRM_MTRR_WC MTRR_TYPE_WC +#define jiffies hardclock_ticks + +/* typedef drm_device_t *device_t; */ +#endif /* !__FreeBSD__ */ + +/* Capabilities taken from src/sys/dev/pci/pcireg.h. */ +#ifndef PCIY_AGP +#define PCIY_AGP 0x02 +#endif + +#ifndef PCIY_EXPRESS +#define PCIY_EXPRESS 0x10 +#endif + +typedef unsigned long dma_addr_t; +typedef u_int64_t u64; +typedef u_int32_t u32; +typedef u_int16_t u16; +typedef u_int8_t u8; + +/* DRM_READMEMORYBARRIER() prevents reordering of reads. + * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. + * DRM_MEMORYBARRIER() prevents reordering of reads and writes. + */ +#if defined(__i386__) +#define DRM_READMEMORYBARRIER() __asm __volatile( \ + "lock; addl $0,0(%%esp)" : : : "memory"); +#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); +#define DRM_MEMORYBARRIER() __asm __volatile( \ + "lock; addl $0,0(%%esp)" : : : "memory"); +#elif defined(__alpha__) +#define DRM_READMEMORYBARRIER() alpha_mb(); +#define DRM_WRITEMEMORYBARRIER() alpha_wmb(); +#define DRM_MEMORYBARRIER() alpha_mb(); +#elif defined(__amd64__) +#define DRM_READMEMORYBARRIER() __asm __volatile( \ + "lock; addl $0,0(%%rsp)" : : : "memory"); +#define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); +#define DRM_MEMORYBARRIER() __asm __volatile( \ + "lock; addl $0,0(%%rsp)" : : : "memory"); +#endif + +#ifdef __FreeBSD__ +#define DRM_READ8(map, offset) \ + *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) +#define DRM_READ16(map, offset) \ + *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) +#define DRM_READ32(map, offset) \ + *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) +#define DRM_WRITE8(map, offset, val) \ + *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val +#define DRM_WRITE16(map, offset, val) \ + *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val +#define DRM_WRITE32(map, offset, val) \ + *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val + +#define DRM_VERIFYAREA_READ( uaddr, size ) \ + (!useracc(__DECONST(caddr_t, uaddr), size, VM_PROT_READ)) + +#else /* __FreeBSD__ */ + +typedef vaddr_t vm_offset_t; + +#define DRM_READ8(map, offset) \ + bus_space_read_1( (map)->bst, (map)->bsh, (offset)) +#define DRM_READ16(map, offset) \ + bus_space_read_2( (map)->bst, (map)->bsh, (offset)) +#define DRM_READ32(map, offset) \ + bus_space_read_4( (map)->bst, (map)->bsh, (offset)) +#define DRM_WRITE8(map, offset, val) \ + bus_space_write_1((map)->bst, (map)->bsh, (offset), (val)) +#define DRM_WRITE16(map, offset, val) \ + bus_space_write_2((map)->bst, (map)->bsh, (offset), (val)) +#define DRM_WRITE32(map, offset, val) \ + bus_space_write_4((map)->bst, (map)->bsh, (offset), (val)) + +#define DRM_VERIFYAREA_READ( uaddr, size ) \ + (!uvm_map_checkprot(&(curproc->p_vmspace->vm_map), \ + (vaddr_t)uaddr, (vaddr_t)uaddr+size, UVM_PROT_READ)) +#endif /* !__FreeBSD__ */ + +#define DRM_COPY_TO_USER_IOCTL(user, kern, size) \ + if ( IOCPARM_LEN(cmd) != size) \ + return EINVAL; \ + *user = kern; +#define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \ + if ( IOCPARM_LEN(cmd) != size) \ + return EINVAL; \ + kern = *user; +#define DRM_COPY_TO_USER(user, kern, size) \ + copyout(kern, user, size) +#define DRM_COPY_FROM_USER(kern, user, size) \ + copyin(user, kern, size) +#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ + copyin(arg2, arg1, arg3) +#define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ + copyout(arg2, arg1, arg3) +#if __FreeBSD_version > 500000 +#define DRM_GET_USER_UNCHECKED(val, uaddr) \ + ((val) = fuword32(uaddr), 0) +#else +#define DRM_GET_USER_UNCHECKED(val, uaddr) \ + ((val) = fuword(uaddr), 0) +#endif + +#define cpu_to_le32(x) htole32(x) +#define le32_to_cpu(x) le32toh(x) + +#define DRM_ERR(v) v +#define DRM_HZ hz +#define DRM_UDELAY(udelay) DELAY(udelay) +#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */ + +#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \ + (_map) = (_dev)->context_sareas[_ctx]; \ +} while(0) + +#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) \ +do { \ + if (_filp != (DRMFILE)(intptr_t)DRM_CURRENTPID) { \ + DRM_ERROR("filp doesn't match curproc\n"); \ + return EINVAL; \ + } \ + _priv = drm_find_file_by_proc(dev, DRM_CURPROC); \ + if (_priv == NULL) { \ + DRM_ERROR("can't find authenticator\n"); \ + return EINVAL; \ + } \ +} while (0) + +#define LOCK_TEST_WITH_RETURN(dev, filp) \ +do { \ + if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ + dev->lock.filp != filp) { \ + DRM_ERROR("%s called without lock held\n", \ + __FUNCTION__); \ + return EINVAL; \ + } \ +} while (0) + +#define DRM_GETSAREA() \ +do { \ + drm_local_map_t *map; \ + DRM_SPINLOCK_ASSERT(&dev->dev_lock); \ + TAILQ_FOREACH(map, &dev->maplist, link) { \ + if (map->type == _DRM_SHM && \ + map->flags & _DRM_CONTAINS_LOCK) { \ + dev_priv->sarea = map; \ + break; \ + } \ + } \ +} while (0) + +#if defined(__FreeBSD__) && __FreeBSD_version > 500000 +#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ +for ( ret = 0 ; !ret && !(condition) ; ) { \ + DRM_UNLOCK(); \ + mtx_lock(&dev->irq_lock); \ + if (!(condition)) \ + ret = msleep(&(queue), &dev->irq_lock, \ + PZERO | PCATCH, "drmwtq", (timeout)); \ + mtx_unlock(&dev->irq_lock); \ + DRM_LOCK(); \ +} +#else +#define DRM_WAIT_ON( ret, queue, timeout, condition ) \ +for ( ret = 0 ; !ret && !(condition) ; ) { \ + int __s; \ + __s = spldrm(); \ + DRM_UNLOCK(); \ + DRM_SPINLOCK(&dev->irq_lock); \ + if (!(condition)) \ + ret = ltsleep( &(queue), PZERO | PCATCH, \ + "drmwtq", (timeout), &dev->irq_lock); \ + DRM_SPINUNLOCK(&dev->irq_lock); \ + DRM_LOCK(); \ + splx(__s); \ +} +#endif + +#define DRM_ERROR(fmt, arg...) \ + printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ + DRM_CURRENTPID, __func__ , ## arg); + +#define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) + +#define DRM_DEBUG(fmt, arg...) do { \ + if (drm_debug_flag) \ + printf("[" DRM_NAME ":pid%d:%s] " fmt, DRM_CURRENTPID, \ + __func__ , ## arg); \ +} while (0) + +typedef struct drm_pci_id_list +{ + int vendor; + int device; + long driver_private; + const char *name; +} drm_pci_id_list_t; + +#define DRM_AUTH 0x1 +#define DRM_MASTER 0x2 +#define DRM_ROOT_ONLY 0x4 +typedef struct drm_ioctl_desc { + int (*func)(DRM_IOCTL_ARGS); + int flags; +} drm_ioctl_desc_t; + +typedef struct drm_magic_entry { + drm_magic_t magic; + struct drm_file *priv; + struct drm_magic_entry *next; +} drm_magic_entry_t; + +typedef struct drm_magic_head { + struct drm_magic_entry *head; + struct drm_magic_entry *tail; +} drm_magic_head_t; + +typedef struct drm_buf { + int idx; /* Index into master buflist */ + int total; /* Buffer size */ + int order; /* log-base-2(total) */ + int used; /* Amount of buffer in use (for DMA) */ + unsigned long offset; /* Byte offset (used internally) */ + void *address; /* Address of buffer */ + unsigned long bus_address; /* Bus address of buffer */ + struct drm_buf *next; /* Kernel-only: used for free list */ + __volatile__ int pending; /* On hardware DMA queue */ + DRMFILE filp; /* Unique identifier of holding process */ + int context; /* Kernel queue for this buffer */ + enum { + DRM_LIST_NONE = 0, + DRM_LIST_FREE = 1, + DRM_LIST_WAIT = 2, + DRM_LIST_PEND = 3, + DRM_LIST_PRIO = 4, + DRM_LIST_RECLAIM = 5 + } list; /* Which list we're on */ + + int dev_priv_size; /* Size of buffer private stoarge */ + void *dev_private; /* Per-buffer private storage */ +} drm_buf_t; + +typedef struct drm_freelist { + int initialized; /* Freelist in use */ + atomic_t count; /* Number of free buffers */ + drm_buf_t *next; /* End pointer */ + + int low_mark; /* Low water mark */ + int high_mark; /* High water mark */ +} drm_freelist_t; + +typedef struct drm_dma_handle { + void *vaddr; + bus_addr_t busaddr; +#if defined(__FreeBSD__) + bus_dma_tag_t tag; + bus_dmamap_t map; +#elif defined(__NetBSD__) + bus_dma_segment_t seg; + void *addr; + bus_addr_t dmaaddr; +#endif +} drm_dma_handle_t; + +typedef struct drm_buf_entry { + int buf_size; + int buf_count; + drm_buf_t *buflist; + int seg_count; + drm_dma_handle_t **seglist; + int page_order; + + drm_freelist_t freelist; +} drm_buf_entry_t; + +typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t; +struct drm_file { + TAILQ_ENTRY(drm_file) link; + int authenticated; + int master; + int minor; + pid_t pid; + uid_t uid; + int refs; + drm_magic_t magic; + unsigned long ioctl_count; + void *driver_priv; +}; + +typedef struct drm_lock_data { + drm_hw_lock_t *hw_lock; /* Hardware lock */ + DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/ + int lock_queue; /* Queue of blocked processes */ + unsigned long lock_time; /* Time of last lock in jiffies */ +} drm_lock_data_t; + +/* This structure, in the drm_device_t, is always initialized while the device + * is open. dev->dma_lock protects the incrementing of dev->buf_use, which + * when set marks that no further bufs may be allocated until device teardown + * occurs (when the last open of the device has closed). The high/low + * watermarks of bufs are only touched by the X Server, and thus not + * concurrently accessed, so no locking is needed. + */ +typedef struct drm_device_dma { + drm_buf_entry_t bufs[DRM_MAX_ORDER+1]; + int buf_count; + drm_buf_t **buflist; /* Vector of pointers info bufs */ + int seg_count; + int page_count; + unsigned long *pagelist; + unsigned long byte_count; + enum { + _DRM_DMA_USE_AGP = 0x01, + _DRM_DMA_USE_SG = 0x02 + } flags; +} drm_device_dma_t; + +typedef struct drm_agp_mem { + void *handle; + unsigned long bound; /* address */ + int pages; + struct drm_agp_mem *prev; + struct drm_agp_mem *next; +} drm_agp_mem_t; + +typedef struct drm_agp_head { + device_t agpdev; + struct agp_info info; + const char *chipset; + drm_agp_mem_t *memory; + unsigned long mode; + int enabled; + int acquired; + unsigned long base; + int mtrr; + int cant_use_aperture; + unsigned long page_mask; +} drm_agp_head_t; + +typedef struct drm_sg_mem { + unsigned long handle; + void *virtual; + int pages; + dma_addr_t *busaddr; + drm_dma_handle_t *dmah; /* Handle to PCI memory for ATI PCIGART table */ +} drm_sg_mem_t; + +typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; + +typedef struct drm_local_map { + unsigned long offset; /* Physical address (0 for SAREA)*/ + unsigned long size; /* Physical size (bytes) */ + drm_map_type_t type; /* Type of memory mapped */ + drm_map_flags_t flags; /* Flags */ + void *handle; /* User-space: "Handle" to pass to mmap */ + /* Kernel-space: kernel-virtual address */ + int mtrr; /* Boolean: MTRR used */ + /* Private data */ + int rid; /* PCI resource ID for bus_space */ +#ifdef __FreeBSD__ + struct resource *bsr; +#endif + bus_space_tag_t bst; + bus_space_handle_t bsh; + drm_dma_handle_t *dmah; +#ifdef __NetBSD__ + int *cnt; + bus_size_t mapsize; +#endif + TAILQ_ENTRY(drm_local_map) link; +} drm_local_map_t; + +TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig); +typedef struct drm_vbl_sig { + TAILQ_ENTRY(drm_vbl_sig) link; + unsigned int sequence; + int signo; + int pid; +} drm_vbl_sig_t; + +/* location of GART table */ +#define DRM_ATI_GART_MAIN 1 +#define DRM_ATI_GART_FB 2 + +typedef struct ati_pcigart_info { + int gart_table_location; + int is_pcie; + void *addr; + dma_addr_t bus_addr; + drm_local_map_t mapping; +} drm_ati_pcigart_info; + +struct drm_driver_info { + int (*load)(struct drm_device *, unsigned long flags); + int (*firstopen)(struct drm_device *); + int (*open)(struct drm_device *, drm_file_t *); + void (*preclose)(struct drm_device *, void *filp); + void (*postclose)(struct drm_device *, drm_file_t *); + void (*lastclose)(struct drm_device *); + int (*unload)(struct drm_device *); + void (*reclaim_buffers_locked)(struct drm_device *, void *filp); + int (*dma_ioctl)(DRM_IOCTL_ARGS); + void (*dma_ready)(struct drm_device *); + int (*dma_quiescent)(struct drm_device *); + int (*dma_flush_block_and_flush)(struct drm_device *, int context, + drm_lock_flags_t flags); + int (*dma_flush_unblock)(struct drm_device *, int context, + drm_lock_flags_t flags); + int (*context_ctor)(struct drm_device *dev, int context); + int (*context_dtor)(struct drm_device *dev, int context); + int (*kernel_context_switch)(struct drm_device *dev, int old, + int new); + int (*kernel_context_switch_unlock)(struct drm_device *dev); + void (*irq_preinstall)(drm_device_t *dev); + void (*irq_postinstall)(drm_device_t *dev); + void (*irq_uninstall)(drm_device_t *dev); + irqreturn_t (*irq_handler)(DRM_IRQ_ARGS); + int (*vblank_wait)(drm_device_t *dev, unsigned int *sequence); + + drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ + + /** + * Called by \c drm_device_is_agp. Typically used to determine if a + * card is really attached to AGP or not. + * + * \param dev DRM device handle + * + * \returns + * One of three values is returned depending on whether or not the + * card is absolutely \b not AGP (return of 0), absolutely \b is AGP + * (return of 1), or may or may not be AGP (return of 2). + */ + int (*device_is_agp) (struct drm_device * dev); + + drm_ioctl_desc_t *ioctls; + int max_ioctl; + + int buf_priv_size; + + int major; + int minor; + int patchlevel; + const char *name; /* Simple driver name */ + const char *desc; /* Longer driver name */ + const char *date; /* Date of last major changes. */ + + unsigned use_agp :1; + unsigned require_agp :1; + unsigned use_sg :1; + unsigned use_dma :1; + unsigned use_pci_dma :1; + unsigned use_dma_queue :1; + unsigned use_irq :1; + unsigned use_vbl_irq :1; + unsigned use_mtrr :1; +}; + +/* Length for the array of resource pointers for drm_get_resource_*. */ +#define DRM_MAX_PCI_RESOURCE 3 + +#if defined(__NetBSD__) || defined(__OpenBSD__) +typedef struct { + int mapped; + int maptype; + bus_addr_t base; + bus_size_t size; + bus_space_handle_t bsh; + int flags; + void * vaddr; +} pci_map_data_t; +#endif + +/** + * DRM device functions structure + */ +struct drm_device { +#if defined(__NetBSD__) || defined(__OpenBSD__) + struct device device; /* softc is an extension of struct device */ +#endif + + struct drm_driver_info driver; + drm_pci_id_list_t *id_entry; /* PCI ID, name, and chipset private */ + + u_int16_t pci_device; /* PCI device id */ + u_int16_t pci_vendor; /* PCI vendor id */ + + char *unique; /* Unique identifier: e.g., busid */ + int unique_len; /* Length of unique field */ +#ifdef __FreeBSD__ + device_t device; /* Device instance from newbus */ + struct cdev *devnode; /* Device number for mknod */ +#endif + int if_version; /* Highest interface version set */ + + int flags; /* Flags to open(2) */ + + /* Locks */ +#if (defined(__FreeBSD__) && __FreeBSD_version > 500000) || defined __NetBSD__ + DRM_SPINTYPE dma_lock; /* protects dev->dma */ + DRM_SPINTYPE irq_lock; /* protects irq condition checks */ + DRM_SPINTYPE dev_lock; /* protects everything else */ +#endif + /* Usage Counters */ + int open_count; /* Outstanding files open */ + int buf_use; /* Buffers in use -- cannot alloc */ + + /* Performance counters */ + unsigned long counters; + drm_stat_type_t types[15]; + atomic_t counts[15]; + + /* Authentication */ + drm_file_list_t files; + drm_magic_head_t magiclist[DRM_HASH_SIZE]; + + /* Linked list of mappable regions. Protected by dev_lock */ + drm_map_list_t maplist; + + drm_local_map_t **context_sareas; + int max_context; + + drm_lock_data_t lock; /* Information on hardware lock */ + + /* DMA queues (contexts) */ + drm_device_dma_t *dma; /* Optional pointer for DMA support */ + + /* Context support */ + int irq; /* Interrupt used by board */ + int irq_enabled; /* True if the irq handler is enabled */ +#ifdef __FreeBSD__ + int irqrid; /* Interrupt used by board */ + struct resource *irqr; /* Resource for interrupt used by board */ + + /* Storage of resource pointers for drm_get_resource_* */ + struct resource *pcir[DRM_MAX_PCI_RESOURCE]; + int pcirid[DRM_MAX_PCI_RESOURCE]; + +#elif defined(__NetBSD__) || defined(__OpenBSD__) + struct pci_attach_args pa; + pci_map_data_t pci_map_data[DRM_MAX_PCI_RESOURCE]; + int unit; /* drm unit number */ +#endif + void *irqh; /* Handle from bus_setup_intr */ + + int pci_domain; + int pci_bus; + int pci_slot; + int pci_func; + + atomic_t context_flag; /* Context swapping flag */ + int last_context; /* Last current context */ + int vbl_queue; /* vbl wait channel */ + atomic_t vbl_received; + +#ifdef __FreeBSD__ + struct sigio *buf_sigio; /* Processes waiting for SIGIO */ +#elif defined(__NetBSD__) + pid_t buf_pgid; +#endif + + /* Sysctl support */ + struct drm_sysctl_info *sysctl; + + drm_agp_head_t *agp; + drm_sg_mem_t *sg; /* Scatter gather memory */ + atomic_t *ctx_bitmap; + void *dev_private; + unsigned int agp_buffer_token; + drm_local_map_t *agp_buffer_map; +}; + +extern int drm_debug_flag; + +/* Device setup support (drm_drv.c) */ +#ifdef __FreeBSD__ +int drm_probe(device_t nbdev, drm_pci_id_list_t *idlist); +int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist); +int drm_detach(device_t nbdev); +d_ioctl_t drm_ioctl; +d_open_t drm_open; +d_close_t drm_close; +d_read_t drm_read; +d_poll_t drm_poll; +d_mmap_t drm_mmap; +#elif defined(__NetBSD__) || defined(__OpenBSD__) +int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); +void drm_attach(struct device *kdev, struct pci_attach_args *pa, + drm_pci_id_list_t *idlist); +int drm_detach(struct device *self, int flags); +int drm_activate(struct device *self, enum devact act); +dev_type_ioctl(drm_ioctl); +dev_type_open(drm_open); +dev_type_close(drm_close); +dev_type_read(drm_read); +dev_type_poll(drm_poll); +dev_type_mmap(drm_mmap); +#endif + +/* File operations helpers (drm_fops.c) */ +#ifdef __FreeBSD__ +extern int drm_open_helper(struct cdev *kdev, int flags, int fmt, + DRM_STRUCTPROC *p, drm_device_t *dev); +extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, + DRM_STRUCTPROC *p); +#elif defined(__NetBSD__) || defined(__OpenBSD__) +extern int drm_open_helper(dev_t kdev, int flags, int fmt, + DRM_STRUCTPROC *p, drm_device_t *dev); +extern drm_file_t *drm_find_file_by_proc(drm_device_t *dev, + DRM_STRUCTPROC *p); +#endif /* __NetBSD__ || __OpenBSD__ */ + +/* Memory management support (drm_memory.c) */ +void drm_mem_init(void); +void drm_mem_uninit(void); +void *drm_alloc(size_t size, int area); +void *drm_calloc(size_t nmemb, size_t size, int area); +void *drm_realloc(void *oldpt, size_t oldsize, size_t size, + int area); +void drm_free(void *pt, size_t size, int area); +void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map); +void drm_ioremapfree(drm_local_map_t *map); +int drm_mtrr_add(unsigned long offset, size_t size, int flags); +int drm_mtrr_del(int handle, unsigned long offset, size_t size, int flags); + +int drm_context_switch(drm_device_t *dev, int old, int new); +int drm_context_switch_complete(drm_device_t *dev, int new); + +int drm_ctxbitmap_init(drm_device_t *dev); +void drm_ctxbitmap_cleanup(drm_device_t *dev); +void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle); +int drm_ctxbitmap_next(drm_device_t *dev); + +/* Locking IOCTL support (drm_lock.c) */ +int drm_lock_take(__volatile__ unsigned int *lock, + unsigned int context); +int drm_lock_transfer(drm_device_t *dev, + __volatile__ unsigned int *lock, + unsigned int context); +int drm_lock_free(drm_device_t *dev, + __volatile__ unsigned int *lock, + unsigned int context); + +/* Buffer management support (drm_bufs.c) */ +unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource); +unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource); +void drm_rmmap(drm_device_t *dev, drm_local_map_t *map); +int drm_order(unsigned long size); +int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size, + drm_map_type_t type, drm_map_flags_t flags, + drm_local_map_t **map_ptr); +int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request); +int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request); +int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request); + +/* DMA support (drm_dma.c) */ +int drm_dma_setup(drm_device_t *dev); +void drm_dma_takedown(drm_device_t *dev); +void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf); +void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp); +#define drm_core_reclaim_buffers drm_reclaim_buffers + +/* IRQ support (drm_irq.c) */ +int drm_irq_install(drm_device_t *dev); +int drm_irq_uninstall(drm_device_t *dev); +irqreturn_t drm_irq_handler(DRM_IRQ_ARGS); +void drm_driver_irq_preinstall(drm_device_t *dev); +void drm_driver_irq_postinstall(drm_device_t *dev); +void drm_driver_irq_uninstall(drm_device_t *dev); +int drm_vblank_wait(drm_device_t *dev, unsigned int *vbl_seq); +void drm_vbl_send_signals(drm_device_t *dev); + +/* AGP/PCI Express/GART support (drm_agpsupport.c) */ +int drm_device_is_agp(drm_device_t *dev); +int drm_device_is_pcie(drm_device_t *dev); +drm_agp_head_t *drm_agp_init(void); +int drm_agp_acquire(drm_device_t *dev); +int drm_agp_release(drm_device_t *dev); +int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info); +int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode); +void *drm_agp_allocate_memory(size_t pages, u32 type); +int drm_agp_free_memory(void *handle); +int drm_agp_bind_memory(void *handle, off_t start); +int drm_agp_unbind_memory(void *handle); +int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request); +int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request); +int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request); +int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request); + +/* Scatter Gather Support (drm_scatter.c) */ +void drm_sg_cleanup(drm_sg_mem_t *entry); + +#if defined(__FreeBSD__) || defined (__NetBSD__) +/* sysctl support (drm_sysctl.h) */ +extern int drm_sysctl_init(drm_device_t *dev); +extern int drm_sysctl_cleanup(drm_device_t *dev); +#endif /* __FreeBSD__ */ + +/* ATI PCIGART support (ati_pcigart.c) */ +int drm_ati_pcigart_init(drm_device_t *dev, + drm_ati_pcigart_info *gart_info); +int drm_ati_pcigart_cleanup(drm_device_t *dev, + drm_ati_pcigart_info *gart_info); + +/* Locking IOCTL support (drm_drv.c) */ +int drm_lock(DRM_IOCTL_ARGS); +int drm_unlock(DRM_IOCTL_ARGS); +int drm_version(DRM_IOCTL_ARGS); +int drm_setversion(DRM_IOCTL_ARGS); + +/* Misc. IOCTL support (drm_ioctl.c) */ +int drm_irq_by_busid(DRM_IOCTL_ARGS); +int drm_getunique(DRM_IOCTL_ARGS); +int drm_setunique(DRM_IOCTL_ARGS); +int drm_getmap(DRM_IOCTL_ARGS); +int drm_getclient(DRM_IOCTL_ARGS); +int drm_getstats(DRM_IOCTL_ARGS); +int drm_noop(DRM_IOCTL_ARGS); + +/* Context IOCTL support (drm_context.c) */ +int drm_resctx(DRM_IOCTL_ARGS); +int drm_addctx(DRM_IOCTL_ARGS); +int drm_modctx(DRM_IOCTL_ARGS); +int drm_getctx(DRM_IOCTL_ARGS); +int drm_switchctx(DRM_IOCTL_ARGS); +int drm_newctx(DRM_IOCTL_ARGS); +int drm_rmctx(DRM_IOCTL_ARGS); +int drm_setsareactx(DRM_IOCTL_ARGS); +int drm_getsareactx(DRM_IOCTL_ARGS); + +/* Drawable IOCTL support (drm_drawable.c) */ +int drm_adddraw(DRM_IOCTL_ARGS); +int drm_rmdraw(DRM_IOCTL_ARGS); + +/* Authentication IOCTL support (drm_auth.c) */ +int drm_getmagic(DRM_IOCTL_ARGS); +int drm_authmagic(DRM_IOCTL_ARGS); + +/* Buffer management support (drm_bufs.c) */ +int drm_addmap_ioctl(DRM_IOCTL_ARGS); +int drm_rmmap_ioctl(DRM_IOCTL_ARGS); +int drm_addbufs_ioctl(DRM_IOCTL_ARGS); +int drm_infobufs(DRM_IOCTL_ARGS); +int drm_markbufs(DRM_IOCTL_ARGS); +int drm_freebufs(DRM_IOCTL_ARGS); +int drm_mapbufs(DRM_IOCTL_ARGS); + +/* DMA support (drm_dma.c) */ +int drm_dma(DRM_IOCTL_ARGS); + +/* IRQ support (drm_irq.c) */ +int drm_control(DRM_IOCTL_ARGS); +int drm_wait_vblank(DRM_IOCTL_ARGS); + +/* AGP/GART support (drm_agpsupport.c) */ +int drm_agp_acquire_ioctl(DRM_IOCTL_ARGS); +int drm_agp_release_ioctl(DRM_IOCTL_ARGS); +int drm_agp_enable_ioctl(DRM_IOCTL_ARGS); +int drm_agp_info_ioctl(DRM_IOCTL_ARGS); +int drm_agp_alloc_ioctl(DRM_IOCTL_ARGS); +int drm_agp_free_ioctl(DRM_IOCTL_ARGS); +int drm_agp_unbind_ioctl(DRM_IOCTL_ARGS); +int drm_agp_bind_ioctl(DRM_IOCTL_ARGS); + +/* Scatter Gather Support (drm_scatter.c) */ +int drm_sg_alloc(DRM_IOCTL_ARGS); +int drm_sg_free(DRM_IOCTL_ARGS); + +/* consistent PCI memory functions (drm_pci.c) */ +drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, + dma_addr_t maxaddr); +void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); + +/* Inline replacements for DRM_IOREMAP macros */ +static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) +{ + map->handle = drm_ioremap(dev, map); +} +static __inline__ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) +{ + if ( map->handle && map->size ) + drm_ioremapfree(map); +} + +static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, unsigned long offset) +{ + drm_local_map_t *map; + + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + TAILQ_FOREACH(map, &dev->maplist, link) { + if (map->offset == offset) + return map; + } + return NULL; +} + +static __inline__ void drm_core_dropmap(struct drm_map *map) +{ +} + +#endif /* __KERNEL__ */ +#endif /* _DRM_P_H_ */ diff --git a/sys/dev/drm/drm_agpsupport.c b/sys/dev/drm/drm_agpsupport.c new file mode 100644 index 00000000000..6dc94299a0d --- /dev/null +++ b/sys/dev/drm/drm_agpsupport.c @@ -0,0 +1,474 @@ +/* drm_agpsupport.h -- DRM support for AGP/GART backend -*- linux-c -*- + * Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Author: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_agpsupport.c,v 1.5 2006/04/09 20:45:44 anholt Exp $"); +*/ + +#include "drmP.h" + +#ifdef __FreeBSD__ +#include <pci/agpreg.h> +#include <dev/pci/pcireg.h> +#endif + +/* Returns 1 if AGP or 0 if not. */ +static int +drm_device_find_capability(drm_device_t *dev, int cap) +{ +#ifdef __FreeBSD__ +#if __FreeBSD_version >= 700010 + + return (pci_find_extcap(dev->device, cap, NULL) == 0); +#else + /* Code taken from agp.c. IWBNI that was a public interface. */ + u_int32_t status; + u_int8_t ptr, next; + + /* + * Check the CAP_LIST bit of the PCI status register first. + */ + status = pci_read_config(dev->device, PCIR_STATUS, 2); + if (!(status & 0x10)) + return 0; + + /* + * Traverse the capabilities list. + */ + for (ptr = pci_read_config(dev->device, AGP_CAPPTR, 1); + ptr != 0; + ptr = next) { + u_int32_t capid = pci_read_config(dev->device, ptr, 4); + next = AGP_CAPID_GET_NEXT_PTR(capid); + + /* + * If this capability entry ID is cap, then we are done. + */ + if (AGP_CAPID_GET_CAP_ID(capid) == cap) + return 1; + } + + return 0; +#endif +#else +#ifdef __NetBSD__ + return pci_get_capability(dev->pa.pa_pc, dev->pa.pa_tag, cap, + NULL, NULL); +#endif + /* XXX: fill me in for non-FreeBSD */ + return 1; +#endif +} + +int drm_device_is_agp(drm_device_t *dev) +{ + if (dev->driver.device_is_agp != NULL) { + int ret; + + /* device_is_agp returns a tristate, 0 = not AGP, 1 = definitely + * AGP, 2 = fall back to PCI capability + */ + ret = (*dev->driver.device_is_agp)(dev); + if (ret != DRM_MIGHT_BE_AGP) + return ret; + } + + return (drm_device_find_capability(dev, PCIY_AGP)); +} + +int drm_device_is_pcie(drm_device_t *dev) +{ + return (drm_device_find_capability(dev, PCIY_EXPRESS)); +} + +int drm_agp_info(drm_device_t * dev, drm_agp_info_t *info) +{ + struct agp_info *kern; + + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + + kern = &dev->agp->info; + agp_get_info(dev->agp->agpdev, kern); + info->agp_version_major = 1; + info->agp_version_minor = 0; + info->mode = kern->ai_mode; + info->aperture_base = kern->ai_aperture_base; + info->aperture_size = kern->ai_aperture_size; + info->memory_allowed = kern->ai_memory_allowed; + info->memory_used = kern->ai_memory_used; + info->id_vendor = kern->ai_devid & 0xffff; + info->id_device = kern->ai_devid >> 16; + + return 0; +} + +int drm_agp_info_ioctl(DRM_IOCTL_ARGS) +{ + int err; + drm_agp_info_t info; + DRM_DEVICE; + + err = drm_agp_info(dev, &info); + if (err != 0) + return err; + + *(drm_agp_info_t *) data = info; + return 0; +} + +int drm_agp_acquire_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + + return drm_agp_acquire(dev); +} + +int drm_agp_acquire(drm_device_t *dev) +{ + int retcode; + + if (!dev->agp || dev->agp->acquired) + return EINVAL; + + retcode = agp_acquire(dev->agp->agpdev); + if (retcode) + return retcode; + + dev->agp->acquired = 1; + return 0; +} + +int drm_agp_release_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + + return drm_agp_release(dev); +} + +int drm_agp_release(drm_device_t * dev) +{ + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + agp_release(dev->agp->agpdev); + dev->agp->acquired = 0; + return 0; +} + +int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode) +{ + + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + + dev->agp->mode = mode.mode; + agp_enable(dev->agp->agpdev, mode.mode); + dev->agp->base = dev->agp->info.ai_aperture_base; + dev->agp->enabled = 1; + return 0; +} + +int drm_agp_enable_ioctl(DRM_IOCTL_ARGS) +{ + drm_agp_mode_t mode; + DRM_DEVICE; + + mode = *(drm_agp_mode_t *) data; + + return drm_agp_enable(dev, mode); +} + +int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request) +{ + drm_agp_mem_t *entry; + void *handle; + unsigned long pages; + u_int32_t type; + struct agp_memory_info info; + + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + + entry = malloc(sizeof(*entry), M_DRM, M_NOWAIT | M_ZERO); + if (entry == NULL) + return ENOMEM; + + pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE; + type = (u_int32_t) request->type; + + DRM_UNLOCK(); + handle = drm_agp_allocate_memory(pages, type); + DRM_LOCK(); + if (handle == NULL) { + free(entry, M_DRM); + return ENOMEM; + } + + entry->handle = handle; + entry->bound = 0; + entry->pages = pages; + entry->prev = NULL; + entry->next = dev->agp->memory; + if (dev->agp->memory) + dev->agp->memory->prev = entry; + dev->agp->memory = entry; + + agp_memory_info(dev->agp->agpdev, entry->handle, &info); + + request->handle = (unsigned long) entry->handle; + request->physical = info.ami_physical; + + return 0; +} + +int drm_agp_alloc_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_agp_buffer_t request; + int retcode; + + request = *(drm_agp_buffer_t *) data; + + DRM_LOCK(); + retcode = drm_agp_alloc(dev, &request); + DRM_UNLOCK(); + + *(drm_agp_buffer_t *) data = request; + + return retcode; +} + +static drm_agp_mem_t * drm_agp_lookup_entry(drm_device_t *dev, void *handle) +{ + drm_agp_mem_t *entry; + + for (entry = dev->agp->memory; entry; entry = entry->next) { + if (entry->handle == handle) return entry; + } + return NULL; +} + +int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request) +{ + drm_agp_mem_t *entry; + int retcode; + + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + + entry = drm_agp_lookup_entry(dev, (void *)request->handle); + if (entry == NULL || !entry->bound) + return EINVAL; + + DRM_UNLOCK(); + retcode = drm_agp_unbind_memory(entry->handle); + DRM_LOCK(); + + if (retcode == 0) + entry->bound = 0; + + return retcode; +} + +int drm_agp_unbind_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_agp_binding_t request; + int retcode; + + request = *(drm_agp_binding_t *) data; + + DRM_LOCK(); + retcode = drm_agp_unbind(dev, &request); + DRM_UNLOCK(); + + return retcode; +} + +int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request) +{ + drm_agp_mem_t *entry; + int retcode; + int page; + + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + + DRM_DEBUG("agp_bind, page_size=%x\n", PAGE_SIZE); + + entry = drm_agp_lookup_entry(dev, (void *)request->handle); + if (entry == NULL || entry->bound) + return EINVAL; + + page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE; + + DRM_UNLOCK(); + retcode = drm_agp_bind_memory(entry->handle, page); + DRM_LOCK(); + if (retcode == 0) + entry->bound = dev->agp->base + (page << PAGE_SHIFT); + + return retcode; +} + +int drm_agp_bind_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_agp_binding_t request; + int retcode; + + request = *(drm_agp_binding_t *) data; + + DRM_LOCK(); + retcode = drm_agp_bind(dev, &request); + DRM_UNLOCK(); + + return retcode; +} + +int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request) +{ + drm_agp_mem_t *entry; + + if (!dev->agp || !dev->agp->acquired) + return EINVAL; + + entry = drm_agp_lookup_entry(dev, (void*)request->handle); + if (entry == NULL) + return EINVAL; + + if (entry->prev) + entry->prev->next = entry->next; + else + dev->agp->memory = entry->next; + if (entry->next) + entry->next->prev = entry->prev; + + DRM_UNLOCK(); + if (entry->bound) + drm_agp_unbind_memory(entry->handle); + drm_agp_free_memory(entry->handle); + DRM_LOCK(); + + free(entry, M_DRM); + + return 0; + +} + +int drm_agp_free_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_agp_buffer_t request; + int retcode; + + request = *(drm_agp_buffer_t *) data; + + DRM_LOCK(); + retcode = drm_agp_free(dev, &request); + DRM_UNLOCK(); + + return retcode; +} + +drm_agp_head_t *drm_agp_init(void) +{ + device_t agpdev; + drm_agp_head_t *head = NULL; + int agp_available = 1; + + agpdev = DRM_AGP_FIND_DEVICE(); + if (!agpdev) + agp_available = 0; + + DRM_DEBUG("agp_available = %d\n", agp_available); + + if (agp_available) { + head = malloc(sizeof(*head), M_DRM, M_NOWAIT | M_ZERO); + if (head == NULL) + return NULL; + head->agpdev = agpdev; + agp_get_info(agpdev, &head->info); + head->memory = NULL; + DRM_INFO("AGP at 0x%08lx %dMB\n", + (long)head->info.ai_aperture_base, + (int)(head->info.ai_aperture_size >> 20)); + } + return head; +} + +void *drm_agp_allocate_memory(size_t pages, u32 type) +{ + device_t agpdev; + + agpdev = DRM_AGP_FIND_DEVICE(); + if (!agpdev) + return NULL; + + return agp_alloc_memory(agpdev, type, pages << AGP_PAGE_SHIFT); +} + +int drm_agp_free_memory(void *handle) +{ + device_t agpdev; + + agpdev = DRM_AGP_FIND_DEVICE(); + if (!agpdev || !handle) + return 0; + + agp_free_memory(agpdev, handle); + return 1; +} + +int drm_agp_bind_memory(void *handle, off_t start) +{ + device_t agpdev; + + agpdev = DRM_AGP_FIND_DEVICE(); + if (!agpdev || !handle) + return EINVAL; + + return agp_bind_memory(agpdev, handle, start * PAGE_SIZE); +} + +int drm_agp_unbind_memory(void *handle) +{ + device_t agpdev; + + agpdev = DRM_AGP_FIND_DEVICE(); + if (!agpdev || !handle) + return EINVAL; + + return agp_unbind_memory(agpdev, handle); +} diff --git a/sys/dev/drm/drm_atomic.h b/sys/dev/drm/drm_atomic.h new file mode 100644 index 00000000000..19d0fdd1fa2 --- /dev/null +++ b/sys/dev/drm/drm_atomic.h @@ -0,0 +1,146 @@ +/** + * \file drm_atomic.h + * Atomic operations used in the DRM which may or may not be provided by the OS. + * + * \author Eric Anholt <anholt@FreeBSD.org> + */ + +/*- + * Copyright 2004 Eric Anholt + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_atomic.h,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +/* Many of these implementations are rather fake, but good enough. */ + +typedef u_int32_t atomic_t; + +#ifdef __FreeBSD__ +#define atomic_set(p, v) (*(p) = (v)) +#define atomic_read(p) (*(p)) +#define atomic_inc(p) atomic_add_int(p, 1) +#define atomic_dec(p) atomic_subtract_int(p, 1) +#define atomic_add(n, p) atomic_add_int(p, n) +#define atomic_sub(n, p) atomic_subtract_int(p, n) +#else /* __FreeBSD__ */ +/* FIXME */ +#define atomic_set(p, v) (*(p) = (v)) +#define atomic_read(p) (*(p)) +#define atomic_inc(p) (*(p) += 1) +#define atomic_dec(p) (*(p) -= 1) +#define atomic_add(n, p) (*(p) += (n)) +#define atomic_sub(n, p) (*(p) -= (n)) +/* FIXME */ +#define atomic_add_int(p, v) *(p) += v +#define atomic_subtract_int(p, v) *(p) -= v +#define atomic_set_int(p, bits) *(p) |= (bits) +#define atomic_clear_int(p, bits) *(p) &= ~(bits) +#endif /* !__FreeBSD__ */ + +#if !defined(__FreeBSD_version) || (__FreeBSD_version < 500000) +#if defined(__i386__) +/* The extra atomic functions from 5.0 haven't been merged to 4.x */ +static __inline int +atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src) +{ + int res = exp; + + __asm __volatile ( + " lock ; " + " cmpxchgl %1,%2 ; " + " setz %%al ; " + " movzbl %%al,%0 ; " + "1: " + "# atomic_cmpset_int" + : "+a" (res) /* 0 (result) */ + : "r" (src), /* 1 */ + "m" (*(dst)) /* 2 */ + : "memory"); + + return (res); +} +#else /* __i386__ */ +static __inline int +atomic_cmpset_int(__volatile__ int *dst, int old, int new) +{ + int s = splhigh(); + if (*dst==old) { + *dst = new; + splx(s); + return 1; + } + splx(s); + return 0; +} +#endif /* !__i386__ */ +#endif /* !__FreeBSD_version || __FreeBSD_version < 500000 */ + +static __inline atomic_t +test_and_set_bit(int b, volatile void *p) +{ + int s = splhigh(); + unsigned int m = 1<<b; + unsigned int r = *(volatile int *)p & m; + *(volatile int *)p |= m; + splx(s); + return r; +} + +static __inline void +clear_bit(int b, volatile void *p) +{ + atomic_clear_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f)); +} + +static __inline void +set_bit(int b, volatile void *p) +{ + atomic_set_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f)); +} + +static __inline int +test_bit(int b, volatile void *p) +{ + return ((volatile int *)p)[b >> 5] & (1 << (b & 0x1f)); +} + +static __inline int +find_first_zero_bit(volatile void *p, int maxbit) +{ + int b; + volatile int *ptr = (volatile int *)p; + + for (b = 0; b < maxbit; b += 32) { + if (ptr[b >> 5] != ~0) { + for (;;) { + if ((ptr[b >> 5] & (1 << (b & 0x1f))) == 0) + return b; + b++; + } + } + } + return maxbit; +} diff --git a/sys/dev/drm/drm_auth.c b/sys/dev/drm/drm_auth.c new file mode 100644 index 00000000000..704f9dc1b5c --- /dev/null +++ b/sys/dev/drm/drm_auth.c @@ -0,0 +1,181 @@ +/* drm_auth.h -- IOCTLs for authentication -*- linux-c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_auth.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +static int drm_hash_magic(drm_magic_t magic) +{ + return magic & (DRM_HASH_SIZE-1); +} + +static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic) +{ + drm_file_t *retval = NULL; + drm_magic_entry_t *pt; + int hash; + + hash = drm_hash_magic(magic); + + DRM_LOCK(); + for (pt = dev->magiclist[hash].head; pt; pt = pt->next) { + if (pt->magic == magic) { + retval = pt->priv; + break; + } + } + DRM_UNLOCK(); + return retval; +} + +static int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic) +{ + int hash; + drm_magic_entry_t *entry; + + DRM_DEBUG("%d\n", magic); + + hash = drm_hash_magic(magic); + entry = malloc(sizeof(*entry), M_DRM, M_ZERO | M_NOWAIT); + if (!entry) return DRM_ERR(ENOMEM); + entry->magic = magic; + entry->priv = priv; + entry->next = NULL; + + DRM_LOCK(); + if (dev->magiclist[hash].tail) { + dev->magiclist[hash].tail->next = entry; + dev->magiclist[hash].tail = entry; + } else { + dev->magiclist[hash].head = entry; + dev->magiclist[hash].tail = entry; + } + DRM_UNLOCK(); + + return 0; +} + +static int drm_remove_magic(drm_device_t *dev, drm_magic_t magic) +{ + drm_magic_entry_t *prev = NULL; + drm_magic_entry_t *pt; + int hash; + + DRM_DEBUG("%d\n", magic); + hash = drm_hash_magic(magic); + + DRM_LOCK(); + for (pt = dev->magiclist[hash].head; pt; prev = pt, pt = pt->next) { + if (pt->magic == magic) { + if (dev->magiclist[hash].head == pt) { + dev->magiclist[hash].head = pt->next; + } + if (dev->magiclist[hash].tail == pt) { + dev->magiclist[hash].tail = prev; + } + if (prev) { + prev->next = pt->next; + } + DRM_UNLOCK(); + return 0; + } + } + DRM_UNLOCK(); + + free(pt, M_DRM); + return DRM_ERR(EINVAL); +} + +int drm_getmagic(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + static drm_magic_t sequence = 0; + drm_auth_t auth; + drm_file_t *priv; + + DRM_LOCK(); +#ifdef __FreeBSD__ + priv = drm_find_file_by_proc(dev, p); +#elif defined(__NetBSD__) + priv = drm_find_file_by_proc(dev, p->l_proc); +#endif + DRM_UNLOCK(); + if (priv == NULL) { + DRM_ERROR("can't find authenticator\n"); + return EINVAL; + } + + /* Find unique magic */ + if (priv->magic) { + auth.magic = priv->magic; + } else { + do { + int old = sequence; + + auth.magic = old+1; + + if (!atomic_cmpset_int(&sequence, old, auth.magic)) + continue; + } while (drm_find_file(dev, auth.magic)); + priv->magic = auth.magic; + drm_add_magic(dev, priv, auth.magic); + } + + DRM_DEBUG("%u\n", auth.magic); + + DRM_COPY_TO_USER_IOCTL((drm_auth_t *)data, auth, sizeof(auth)); + + return 0; +} + +int drm_authmagic(DRM_IOCTL_ARGS) +{ + drm_auth_t auth; + drm_file_t *file; + DRM_DEVICE; + + DRM_COPY_FROM_USER_IOCTL(auth, (drm_auth_t *)data, sizeof(auth)); + + DRM_DEBUG("%u\n", auth.magic); + + if ((file = drm_find_file(dev, auth.magic))) { + file->authenticated = 1; + drm_remove_magic(dev, auth.magic); + return 0; + } + return DRM_ERR(EINVAL); +} diff --git a/sys/dev/drm/drm_bufs.c b/sys/dev/drm/drm_bufs.c new file mode 100644 index 00000000000..3469b10ceb0 --- /dev/null +++ b/sys/dev/drm/drm_bufs.c @@ -0,0 +1,1156 @@ +/* drm_bufs.h -- Generic buffer template -*- linux-c -*- + * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com + */ +/*- + * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_bufs.c,v 1.3 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +#include "dev/pci/pcireg.h" + +/* + * Compute order. Can be made faster. + */ +int drm_order(unsigned long size) +{ + int order; + unsigned long tmp; + + for ( order = 0, tmp = size ; tmp >>= 1 ; ++order ); + + if ( size & ~(1 << order) ) + ++order; + + return order; +} + +/* Allocation of PCI memory resources (framebuffer, registers, etc.) for + * drm_get_resource_*. Note that they are not RF_ACTIVE, so there's no virtual + * address for accessing them. Cleaned up at unload. + */ +static int drm_alloc_resource(drm_device_t *dev, int resource) +{ +#ifdef __FreeBSD__ + if (resource >= DRM_MAX_PCI_RESOURCE) { + DRM_ERROR("Resource %d too large\n", resource); + return 1; + } + + DRM_UNLOCK(); + if (dev->pcir[resource] != NULL) { + DRM_LOCK(); + return 0; + } + + dev->pcirid[resource] = PCIR_BAR(resource); + dev->pcir[resource] = bus_alloc_resource_any(dev->device, + SYS_RES_MEMORY, &dev->pcirid[resource], RF_SHAREABLE); + DRM_LOCK(); + + if (dev->pcir[resource] == NULL) { + DRM_ERROR("Couldn't find resource 0x%x\n", resource); + return 1; + } +#endif + return 0; +} + +unsigned long drm_get_resource_start(drm_device_t *dev, unsigned int resource) +{ + if (drm_alloc_resource(dev, resource) != 0) + return 0; + +#ifdef __FreeBSD__ + return rman_get_start(dev->pcir[resource]); +#elif defined(__NetBSD__) + return dev->pci_map_data[resource].base; +#endif +} + +unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource) +{ + if (drm_alloc_resource(dev, resource) != 0) + return 0; + +#ifdef __FreeBSD__ + return rman_get_size(dev->pcir[resource]); +#elif defined(__NetBSD__) + return dev->pci_map_data[resource].size; +#endif +} + +int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size, + drm_map_type_t type, drm_map_flags_t flags, drm_local_map_t **map_ptr) +{ + drm_local_map_t *map; + int align; + /*drm_agp_mem_t *entry; + int valid;*/ + + /* Only allow shared memory to be removable since we only keep enough + * book keeping information about shared memory to allow for removal + * when processes fork. + */ + if ((flags & _DRM_REMOVABLE) && type != _DRM_SHM) { + DRM_ERROR("Requested removable map for non-DRM_SHM\n"); + return EINVAL; + } + if ((offset & PAGE_MASK) || (size & PAGE_MASK)) { + DRM_ERROR("offset/size not page aligned: 0x%lx/0x%lx\n", + offset, size); + return EINVAL; + } + if (offset + size < offset) { + DRM_ERROR("offset and size wrap around: 0x%lx/0x%lx\n", + offset, size); + return EINVAL; + } + + DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n", offset, + size, type); + + /* Check if this is just another version of a kernel-allocated map, and + * just hand that back if so. + */ + if (type == _DRM_REGISTERS || type == _DRM_FRAME_BUFFER || + type == _DRM_SHM) { + TAILQ_FOREACH(map, &dev->maplist, link) { + if (map->type == type && (map->offset == offset || + (map->type == _DRM_SHM && + map->flags == _DRM_CONTAINS_LOCK))) { + map->size = size; + DRM_DEBUG("Found kernel map %d\n", type); + goto done; + } + } + } + DRM_UNLOCK(); + + /* Allocate a new map structure, fill it in, and do any type-specific + * initialization necessary. + */ + map = malloc(sizeof(*map), M_DRM, M_ZERO | M_NOWAIT); + if ( !map ) + return DRM_ERR(ENOMEM); + + map->offset = offset; + map->size = size; + map->type = type; + map->flags = flags; +#ifdef __NetBSD__ + map->cnt = NULL; + map->mapsize = 0; +#endif + + switch ( map->type ) { + case _DRM_REGISTERS: + map->handle = drm_ioremap(dev, map); + if (!(map->flags & _DRM_WRITE_COMBINING)) + break; + /* FALLTHROUGH */ + case _DRM_FRAME_BUFFER: + if (drm_mtrr_add(map->offset, map->size, DRM_MTRR_WC) == 0) + map->mtrr = 1; + break; + case _DRM_SHM: + map->handle = malloc(map->size, M_DRM, M_NOWAIT); + DRM_DEBUG( "%lu %d %p\n", + map->size, drm_order(map->size), map->handle ); + if ( !map->handle ) { + free(map, M_DRM); + return DRM_ERR(ENOMEM); + } + map->offset = (unsigned long)map->handle; + if ( map->flags & _DRM_CONTAINS_LOCK ) { + /* Prevent a 2nd X Server from creating a 2nd lock */ + DRM_LOCK(); + if (dev->lock.hw_lock != NULL) { + DRM_UNLOCK(); + free(map->handle, M_DRM); + free(map, M_DRM); + return DRM_ERR(EBUSY); + } + dev->lock.hw_lock = map->handle; /* Pointer to lock */ + DRM_UNLOCK(); + } + break; + case _DRM_AGP: + /*valid = 0;*/ + map->offset += dev->agp->base; + map->mtrr = dev->agp->mtrr; /* for getmap */ + /*for (entry = dev->agp->memory; entry; entry = entry->next) { + if ((map->offset >= entry->bound) && + (map->offset + map->size <= + entry->bound + entry->pages * PAGE_SIZE)) { + valid = 1; + break; + } + } + if (!valid) { + free(map, M_DRM); + return DRM_ERR(EACCES); + }*/ + break; + case _DRM_SCATTER_GATHER: + if (!dev->sg) { + free(map, M_DRM); + return DRM_ERR(EINVAL); + } + map->offset = map->offset + dev->sg->handle; + break; + case _DRM_CONSISTENT: + /* Unfortunately, we don't get any alignment specification from + * the caller, so we have to guess. drm_pci_alloc requires + * a power-of-two alignment, so try to align the bus address of + * the map to it size if possible, otherwise just assume + * PAGE_SIZE alignment. + */ + align = map->size; + if ((align & (align - 1)) != 0) + align = PAGE_SIZE; + map->dmah = drm_pci_alloc(dev, map->size, align, 0xfffffffful); + if (map->dmah == NULL) { + free(map, M_DRM); + return DRM_ERR(ENOMEM); + } + map->handle = map->dmah->vaddr; + map->offset = map->dmah->busaddr; + break; + default: + DRM_ERROR("Bad map type %d\n", map->type); + free(map, M_DRM); + return DRM_ERR(EINVAL); + } + + DRM_LOCK(); + TAILQ_INSERT_TAIL(&dev->maplist, map, link); + +done: + /* Jumped to, with lock held, when a kernel map is found. */ + + DRM_DEBUG("Added map %d 0x%lx/0x%lx\n", map->type, map->offset, + map->size); + + *map_ptr = map; + + return 0; +} + +int drm_addmap_ioctl(DRM_IOCTL_ARGS) +{ + drm_map_t request; + drm_local_map_t *map; + int err; + DRM_DEVICE; + + if (!(dev->flags & (FREAD|FWRITE))) + return DRM_ERR(EACCES); /* Require read/write */ + + DRM_COPY_FROM_USER_IOCTL(request, (drm_map_t *)data, sizeof(drm_map_t)); + +#ifdef __FreeBSD__ + if (!DRM_SUSER(p) && request.type != _DRM_AGP) +#elif defined(__NetBSD__) + if (!DRM_SUSER(p->l_proc) && request.type != _DRM_AGP) +#endif + return DRM_ERR(EACCES); + + DRM_LOCK(); + err = drm_addmap(dev, request.offset, request.size, request.type, + request.flags, &map); + DRM_UNLOCK(); + if (err != 0) + return err; + + request.offset = map->offset; + request.size = map->size; + request.type = map->type; + request.flags = map->flags; + request.mtrr = map->mtrr; + request.handle = map->handle; + + if (request.type != _DRM_SHM) { + request.handle = (void *)request.offset; + } + DRM_COPY_TO_USER_IOCTL((drm_map_t *)data, request, sizeof(drm_map_t)); + + return 0; +} + +void drm_rmmap(drm_device_t *dev, drm_local_map_t *map) +{ + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + + switch (map->type) { + case _DRM_REGISTERS: +#ifdef __FreeBSD__ + if (map->bsr == NULL) +#endif + drm_ioremapfree(map); + /* FALLTHROUGH */ + case _DRM_FRAME_BUFFER: + if (map->mtrr) { + int __unused retcode; + + retcode = drm_mtrr_del(0, map->offset, map->size, + DRM_MTRR_WC); + DRM_DEBUG("mtrr_del = %d\n", retcode); + } + break; + case _DRM_SHM: + free(map->handle, M_DRM); + break; + case _DRM_AGP: + case _DRM_SCATTER_GATHER: + break; + case _DRM_CONSISTENT: + drm_pci_free(dev, map->dmah); + break; + } + +#ifdef __FreeBSD__ + if (map->bsr != NULL) { + bus_release_resource(dev->device, SYS_RES_MEMORY, map->rid, + map->bsr); + } +#endif + + TAILQ_REMOVE(&dev->maplist, map, link); + free(map, M_DRM); +} + +/* Remove a map private from list and deallocate resources if the mapping + * isn't in use. + */ + +int drm_rmmap_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_local_map_t *map; + drm_map_t request; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_map_t *)data, sizeof(request) ); + + DRM_LOCK(); + TAILQ_FOREACH(map, &dev->maplist, link) { + if (map->handle == request.handle && + map->flags & _DRM_REMOVABLE) + break; + } + + /* No match found. */ + if (map == NULL) { + DRM_UNLOCK(); + return DRM_ERR(EINVAL); + } + + drm_rmmap(dev, map); + + DRM_UNLOCK(); + + return 0; +} + + +static void drm_cleanup_buf_error(drm_device_t *dev, drm_buf_entry_t *entry) +{ + int i; + + if (entry->seg_count) { + for (i = 0; i < entry->seg_count; i++) { + drm_pci_free(dev, entry->seglist[i]); + } + free(entry->seglist, M_DRM); + + entry->seg_count = 0; + } + + if (entry->buf_count) { + for (i = 0; i < entry->buf_count; i++) { + free(entry->buflist[i].dev_private, M_DRM); + } + free(entry->buflist, M_DRM); + + entry->buf_count = 0; + } +} + +static int drm_do_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request) +{ + drm_device_dma_t *dma = dev->dma; + drm_buf_entry_t *entry; + /*drm_agp_mem_t *agp_entry; + int valid*/ + drm_buf_t *buf; + unsigned long offset; + unsigned long agp_offset; + int count; + int order; + int size; + int alignment; + int page_order; + int total; + int byte_count; + int i; + drm_buf_t **temp_buflist; + + count = request->count; + order = drm_order(request->size); + size = 1 << order; + + alignment = (request->flags & _DRM_PAGE_ALIGN) + ? round_page(size) : size; + page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; + total = PAGE_SIZE << page_order; + + byte_count = 0; + agp_offset = dev->agp->base + request->agp_start; + + DRM_DEBUG( "count: %d\n", count ); + DRM_DEBUG( "order: %d\n", order ); + DRM_DEBUG( "size: %d\n", size ); + DRM_DEBUG( "agp_offset: 0x%lx\n", agp_offset ); + DRM_DEBUG( "alignment: %d\n", alignment ); + DRM_DEBUG( "page_order: %d\n", page_order ); + DRM_DEBUG( "total: %d\n", total ); + + /* Make sure buffers are located in AGP memory that we own */ + /* Breaks MGA due to drm_alloc_agp not setting up entries for the + * memory. Safe to ignore for now because these ioctls are still + * root-only. + */ + /*valid = 0; + for (agp_entry = dev->agp->memory; agp_entry; + agp_entry = agp_entry->next) { + if ((agp_offset >= agp_entry->bound) && + (agp_offset + total * count <= + agp_entry->bound + agp_entry->pages * PAGE_SIZE)) { + valid = 1; + break; + } + } + if (!valid) { + DRM_DEBUG("zone invalid\n"); + return DRM_ERR(EINVAL); + }*/ + + entry = &dma->bufs[order]; + + entry->buflist = malloc(count * sizeof(*entry->buflist), M_DRM, + M_NOWAIT | M_ZERO); + if ( !entry->buflist ) { + return DRM_ERR(ENOMEM); + } + + entry->buf_size = size; + entry->page_order = page_order; + + offset = 0; + + while ( entry->buf_count < count ) { + buf = &entry->buflist[entry->buf_count]; + buf->idx = dma->buf_count + entry->buf_count; + buf->total = alignment; + buf->order = order; + buf->used = 0; + + buf->offset = (dma->byte_count + offset); + buf->bus_address = agp_offset + offset; + buf->address = (void *)(agp_offset + offset); + buf->next = NULL; + buf->pending = 0; + buf->filp = NULL; + + buf->dev_priv_size = dev->driver.buf_priv_size; + buf->dev_private = malloc(buf->dev_priv_size, M_DRM, + M_NOWAIT | M_ZERO); + if (buf->dev_private == NULL) { + /* Set count correctly so we free the proper amount. */ + entry->buf_count = count; + drm_cleanup_buf_error(dev, entry); + return DRM_ERR(ENOMEM); + } + + offset += alignment; + entry->buf_count++; + byte_count += PAGE_SIZE << page_order; + } + + DRM_DEBUG( "byte_count: %d\n", byte_count ); + + temp_buflist = realloc(dma->buflist, + (dma->buf_count + entry->buf_count) * sizeof(*dma->buflist), M_DRM, + M_NOWAIT); + if (temp_buflist == NULL) { + /* Free the entry because it isn't valid */ + drm_cleanup_buf_error(dev, entry); + return DRM_ERR(ENOMEM); + } + dma->buflist = temp_buflist; + + for ( i = 0 ; i < entry->buf_count ; i++ ) { + dma->buflist[i + dma->buf_count] = &entry->buflist[i]; + } + + dma->buf_count += entry->buf_count; + dma->byte_count += byte_count; + + DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count ); + DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count ); + + request->count = entry->buf_count; + request->size = size; + + dma->flags = _DRM_DMA_USE_AGP; + + return 0; +} + +static int drm_do_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request) +{ + drm_device_dma_t *dma = dev->dma; + int count; + int order; + int size; + int total; + int page_order; + drm_buf_entry_t *entry; + drm_buf_t *buf; + int alignment; + unsigned long offset; + int i; + int byte_count; + int page_count; + unsigned long *temp_pagelist; + drm_buf_t **temp_buflist; + + count = request->count; + order = drm_order(request->size); + size = 1 << order; + + DRM_DEBUG( "count=%d, size=%d (%d), order=%d\n", + request->count, request->size, size, order ); + + alignment = (request->flags & _DRM_PAGE_ALIGN) + ? round_page(size) : size; + page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; + total = PAGE_SIZE << page_order; + + entry = &dma->bufs[order]; + + entry->buflist = malloc(count * sizeof(*entry->buflist), M_DRM, + M_NOWAIT | M_ZERO); + entry->seglist = malloc(count * sizeof(*entry->seglist), M_DRM, + M_NOWAIT | M_ZERO); + + /* Keep the original pagelist until we know all the allocations + * have succeeded + */ + temp_pagelist = malloc((dma->page_count + (count << page_order)) * + sizeof(*dma->pagelist), M_DRM, M_NOWAIT); + + if (entry->buflist == NULL || entry->seglist == NULL || + temp_pagelist == NULL) { + free(entry->buflist, M_DRM); + free(entry->seglist, M_DRM); + return DRM_ERR(ENOMEM); + } + + memcpy(temp_pagelist, dma->pagelist, dma->page_count * + sizeof(*dma->pagelist)); + + DRM_DEBUG( "pagelist: %d entries\n", + dma->page_count + (count << page_order) ); + + entry->buf_size = size; + entry->page_order = page_order; + byte_count = 0; + page_count = 0; + + while ( entry->buf_count < count ) { + drm_dma_handle_t *dmah = drm_pci_alloc(dev, size, alignment, + 0xfffffffful); + if (dmah == NULL) { + /* Set count correctly so we free the proper amount. */ + entry->buf_count = count; + entry->seg_count = count; + drm_cleanup_buf_error(dev, entry); + free(temp_pagelist, M_DRM); + return DRM_ERR(ENOMEM); + } + + entry->seglist[entry->seg_count++] = dmah; + for ( i = 0 ; i < (1 << page_order) ; i++ ) { + DRM_DEBUG( "page %d @ %p\n", + dma->page_count + page_count, + (char *)dmah->vaddr + PAGE_SIZE * i ); + temp_pagelist[dma->page_count + page_count++] = + (long)dmah->vaddr + PAGE_SIZE * i; + } + for ( offset = 0 ; + offset + size <= total && entry->buf_count < count ; + offset += alignment, ++entry->buf_count ) { + buf = &entry->buflist[entry->buf_count]; + buf->idx = dma->buf_count + entry->buf_count; + buf->total = alignment; + buf->order = order; + buf->used = 0; + buf->offset = (dma->byte_count + byte_count + offset); + buf->address = ((char *)dmah->vaddr + offset); + buf->bus_address = dmah->busaddr + offset; + buf->next = NULL; + buf->pending = 0; + buf->filp = NULL; + + buf->dev_priv_size = dev->driver.buf_priv_size; + buf->dev_private = malloc(buf->dev_priv_size, M_DRM, + M_NOWAIT | M_ZERO); + if (buf->dev_private == NULL) { + /* Set count correctly so we free the proper amount. */ + entry->buf_count = count; + entry->seg_count = count; + drm_cleanup_buf_error(dev, entry); + free(temp_pagelist, M_DRM); + return DRM_ERR(ENOMEM); + } + + DRM_DEBUG( "buffer %d @ %p\n", + entry->buf_count, buf->address ); + } + byte_count += PAGE_SIZE << page_order; + } + + temp_buflist = realloc(dma->buflist, + (dma->buf_count + entry->buf_count) * sizeof(*dma->buflist), M_DRM, + M_NOWAIT); + if (temp_buflist == NULL) { + /* Free the entry because it isn't valid */ + drm_cleanup_buf_error(dev, entry); + free(temp_pagelist, M_DRM); + return DRM_ERR(ENOMEM); + } + dma->buflist = temp_buflist; + + for ( i = 0 ; i < entry->buf_count ; i++ ) { + dma->buflist[i + dma->buf_count] = &entry->buflist[i]; + } + + /* No allocations failed, so now we can replace the orginal pagelist + * with the new one. + */ + free(dma->pagelist, M_DRM); + dma->pagelist = temp_pagelist; + + dma->buf_count += entry->buf_count; + dma->seg_count += entry->seg_count; + dma->page_count += entry->seg_count << page_order; + dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order); + + request->count = entry->buf_count; + request->size = size; + + return 0; + +} + +static int drm_do_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request) +{ + drm_device_dma_t *dma = dev->dma; + drm_buf_entry_t *entry; + drm_buf_t *buf; + unsigned long offset; + unsigned long agp_offset; + int count; + int order; + int size; + int alignment; + int page_order; + int total; + int byte_count; + int i; + drm_buf_t **temp_buflist; + + count = request->count; + order = drm_order(request->size); + size = 1 << order; + + alignment = (request->flags & _DRM_PAGE_ALIGN) + ? round_page(size) : size; + page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; + total = PAGE_SIZE << page_order; + + byte_count = 0; + agp_offset = request->agp_start; + + DRM_DEBUG( "count: %d\n", count ); + DRM_DEBUG( "order: %d\n", order ); + DRM_DEBUG( "size: %d\n", size ); + DRM_DEBUG( "agp_offset: %ld\n", agp_offset ); + DRM_DEBUG( "alignment: %d\n", alignment ); + DRM_DEBUG( "page_order: %d\n", page_order ); + DRM_DEBUG( "total: %d\n", total ); + + entry = &dma->bufs[order]; + + entry->buflist = malloc(count * sizeof(*entry->buflist), M_DRM, + M_NOWAIT | M_ZERO); + if (entry->buflist == NULL) + return DRM_ERR(ENOMEM); + + entry->buf_size = size; + entry->page_order = page_order; + + offset = 0; + + while ( entry->buf_count < count ) { + buf = &entry->buflist[entry->buf_count]; + buf->idx = dma->buf_count + entry->buf_count; + buf->total = alignment; + buf->order = order; + buf->used = 0; + + buf->offset = (dma->byte_count + offset); + buf->bus_address = agp_offset + offset; + buf->address = (void *)(agp_offset + offset + dev->sg->handle); + buf->next = NULL; + buf->pending = 0; + buf->filp = NULL; + + buf->dev_priv_size = dev->driver.buf_priv_size; + buf->dev_private = malloc(buf->dev_priv_size, M_DRM, + M_NOWAIT | M_ZERO); + if (buf->dev_private == NULL) { + /* Set count correctly so we free the proper amount. */ + entry->buf_count = count; + drm_cleanup_buf_error(dev, entry); + return DRM_ERR(ENOMEM); + } + + DRM_DEBUG( "buffer %d @ %p\n", + entry->buf_count, buf->address ); + + offset += alignment; + entry->buf_count++; + byte_count += PAGE_SIZE << page_order; + } + + DRM_DEBUG( "byte_count: %d\n", byte_count ); + + temp_buflist = realloc(dma->buflist, + (dma->buf_count + entry->buf_count) * sizeof(*dma->buflist), M_DRM, + M_NOWAIT); + if (temp_buflist == NULL) { + /* Free the entry because it isn't valid */ + drm_cleanup_buf_error(dev, entry); + return DRM_ERR(ENOMEM); + } + dma->buflist = temp_buflist; + + for ( i = 0 ; i < entry->buf_count ; i++ ) { + dma->buflist[i + dma->buf_count] = &entry->buflist[i]; + } + + dma->buf_count += entry->buf_count; + dma->byte_count += byte_count; + + DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count ); + DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count ); + + request->count = entry->buf_count; + request->size = size; + + dma->flags = _DRM_DMA_USE_SG; + + return 0; +} + +int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request) +{ + int order, ret; + + DRM_SPINLOCK(&dev->dma_lock); + + if (request->count < 0 || request->count > 4096) + return DRM_ERR(EINVAL); + + order = drm_order(request->size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) + return DRM_ERR(EINVAL); + + /* No more allocations after first buffer-using ioctl. */ + if (dev->buf_use != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(EBUSY); + } + /* No more than one allocation per order */ + if (dev->dma->bufs[order].buf_count != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(ENOMEM); + } + + ret = drm_do_addbufs_agp(dev, request); + + DRM_SPINUNLOCK(&dev->dma_lock); + + return ret; +} + +int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request) +{ + int order, ret; + + DRM_SPINLOCK(&dev->dma_lock); + + if (!DRM_SUSER(DRM_CURPROC)) + return DRM_ERR(EACCES); + + if (request->count < 0 || request->count > 4096) + return DRM_ERR(EINVAL); + + order = drm_order(request->size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) + return DRM_ERR(EINVAL); + + /* No more allocations after first buffer-using ioctl. */ + if (dev->buf_use != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(EBUSY); + } + /* No more than one allocation per order */ + if (dev->dma->bufs[order].buf_count != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(ENOMEM); + } + + ret = drm_do_addbufs_sg(dev, request); + + DRM_SPINUNLOCK(&dev->dma_lock); + + return ret; +} + +int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request) +{ + int order, ret; + + DRM_SPINLOCK(&dev->dma_lock); + + if (!DRM_SUSER(DRM_CURPROC)) + return DRM_ERR(EACCES); + + if (request->count < 0 || request->count > 4096) + return DRM_ERR(EINVAL); + + order = drm_order(request->size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) + return DRM_ERR(EINVAL); + + /* No more allocations after first buffer-using ioctl. */ + if (dev->buf_use != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(EBUSY); + } + /* No more than one allocation per order */ + if (dev->dma->bufs[order].buf_count != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(ENOMEM); + } + + ret = drm_do_addbufs_pci(dev, request); + + DRM_SPINUNLOCK(&dev->dma_lock); + + return ret; +} + +int drm_addbufs_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_buf_desc_t request; + int err; + + DRM_COPY_FROM_USER_IOCTL(request, (drm_buf_desc_t *)data, + sizeof(request)); + + if (request.flags & _DRM_AGP_BUFFER) + err = drm_addbufs_agp(dev, &request); + else if (request.flags & _DRM_SG_BUFFER) + err = drm_addbufs_sg(dev, &request); + else + err = drm_addbufs_pci(dev, &request); + + DRM_COPY_TO_USER_IOCTL((drm_buf_desc_t *)data, request, + sizeof(request)); + + return err; +} + +int drm_infobufs(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_device_dma_t *dma = dev->dma; + drm_buf_info_t request; + int i; + int count; + int retcode = 0; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_info_t *)data, sizeof(request) ); + + DRM_SPINLOCK(&dev->dma_lock); + ++dev->buf_use; /* Can't allocate more after this call */ + DRM_SPINUNLOCK(&dev->dma_lock); + + for ( i = 0, count = 0 ; i < DRM_MAX_ORDER + 1 ; i++ ) { + if ( dma->bufs[i].buf_count ) ++count; + } + + DRM_DEBUG( "count = %d\n", count ); + + if ( request.count >= count ) { + for ( i = 0, count = 0 ; i < DRM_MAX_ORDER + 1 ; i++ ) { + if ( dma->bufs[i].buf_count ) { + drm_buf_desc_t from; + + from.count = dma->bufs[i].buf_count; + from.size = dma->bufs[i].buf_size; + from.low_mark = dma->bufs[i].freelist.low_mark; + from.high_mark = dma->bufs[i].freelist.high_mark; + + if (DRM_COPY_TO_USER(&request.list[count], &from, + sizeof(drm_buf_desc_t)) != 0) { + retcode = DRM_ERR(EFAULT); + break; + } + + DRM_DEBUG( "%d %d %d %d %d\n", + i, + dma->bufs[i].buf_count, + dma->bufs[i].buf_size, + dma->bufs[i].freelist.low_mark, + dma->bufs[i].freelist.high_mark ); + ++count; + } + } + } + request.count = count; + + DRM_COPY_TO_USER_IOCTL( (drm_buf_info_t *)data, request, sizeof(request) ); + + return retcode; +} + +int drm_markbufs(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_device_dma_t *dma = dev->dma; + drm_buf_desc_t request; + int order; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_desc_t *)data, sizeof(request) ); + + DRM_DEBUG( "%d, %d, %d\n", + request.size, request.low_mark, request.high_mark ); + + + order = drm_order(request.size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER || + request.low_mark < 0 || request.high_mark < 0) { + return DRM_ERR(EINVAL); + } + + DRM_SPINLOCK(&dev->dma_lock); + if (request.low_mark > dma->bufs[order].buf_count || + request.high_mark > dma->bufs[order].buf_count) { + return DRM_ERR(EINVAL); + } + + dma->bufs[order].freelist.low_mark = request.low_mark; + dma->bufs[order].freelist.high_mark = request.high_mark; + DRM_SPINUNLOCK(&dev->dma_lock); + + return 0; +} + +int drm_freebufs(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_device_dma_t *dma = dev->dma; + drm_buf_free_t request; + int i; + int idx; + drm_buf_t *buf; + int retcode = 0; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_free_t *)data, sizeof(request) ); + + DRM_DEBUG( "%d\n", request.count ); + + DRM_SPINLOCK(&dev->dma_lock); + for ( i = 0 ; i < request.count ; i++ ) { + if (DRM_COPY_FROM_USER(&idx, &request.list[i], sizeof(idx))) { + retcode = DRM_ERR(EFAULT); + break; + } + if ( idx < 0 || idx >= dma->buf_count ) { + DRM_ERROR( "Index %d (of %d max)\n", + idx, dma->buf_count - 1 ); + retcode = DRM_ERR(EINVAL); + break; + } + buf = dma->buflist[idx]; + if ( buf->filp != filp ) { + DRM_ERROR("Process %d freeing buffer not owned\n", + DRM_CURRENTPID); + retcode = DRM_ERR(EINVAL); + break; + } + drm_free_buffer(dev, buf); + } + DRM_SPINUNLOCK(&dev->dma_lock); + + return retcode; +} + +int drm_mapbufs(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_device_dma_t *dma = dev->dma; + int retcode = 0; + const int zero = 0; + vm_offset_t address; + struct vmspace *vms; +#ifdef __FreeBSD__ + vm_ooffset_t foff; + vm_size_t size; + vm_offset_t vaddr; +#elif defined(__NetBSD__) || defined(__OpenBSD__) + struct vnode *vn; + voff_t foff; + vsize_t size; + vaddr_t vaddr; +#endif /* __NetBSD__ || __OpenBSD__ */ + + drm_buf_map_t request; + int i; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_map_t *)data, sizeof(request) ); + +#if defined(__NetBSD__) || defined(__OpenBSD__) + if (!vfinddev(kdev, VCHR, &vn)) + return 0; /* FIXME: Shouldn't this be EINVAL or something? */ +#endif /* __NetBSD__ || __OpenBSD */ + +#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 + vms = p->td_proc->p_vmspace; +#else + vms = p->l_proc->p_vmspace; +#endif + + DRM_SPINLOCK(&dev->dma_lock); + dev->buf_use++; /* Can't allocate more after this call */ + DRM_SPINUNLOCK(&dev->dma_lock); + + if (request.count < dma->buf_count) + goto done; + + if ((dev->driver.use_agp && (dma->flags & _DRM_DMA_USE_AGP)) || + (dev->driver.use_sg && (dma->flags & _DRM_DMA_USE_SG))) { + drm_local_map_t *map = dev->agp_buffer_map; + + if (map == NULL) { + retcode = EINVAL; + goto done; + } + size = round_page(map->size); + foff = map->offset; + } else { + size = round_page(dma->byte_count), + foff = 0; + } + +#ifdef __FreeBSD__ + vaddr = round_page((vm_offset_t)vms->vm_daddr + MAXDSIZ); +#if __FreeBSD_version >= 600023 + retcode = vm_mmap(&vms->vm_map, &vaddr, size, PROT_READ | PROT_WRITE, + VM_PROT_ALL, MAP_SHARED, OBJT_DEVICE, kdev, foff ); +#else + retcode = vm_mmap(&vms->vm_map, &vaddr, size, PROT_READ | PROT_WRITE, + VM_PROT_ALL, MAP_SHARED, SLIST_FIRST(&kdev->si_hlist), foff ); +#endif +#elif defined(__NetBSD__) || defined(__OpenBSD__) + vaddr = round_page((vaddr_t)vms->vm_daddr + MAXDSIZ); + DRM_DEBUG("mmap %lx\n", vaddr); + retcode = uvm_mmap(&vms->vm_map, &vaddr, size, + UVM_PROT_READ | UVM_PROT_WRITE, UVM_PROT_ALL, MAP_SHARED, + &vn->v_uobj, foff, p->l_proc->p_rlimit[RLIMIT_MEMLOCK].rlim_cur); +#endif /* __NetBSD__ || __OpenBSD */ + if (retcode) + goto done; + + request.virtual = (void *)vaddr; + + for ( i = 0 ; i < dma->buf_count ; i++ ) { + if (DRM_COPY_TO_USER(&request.list[i].idx, + &dma->buflist[i]->idx, sizeof(request.list[0].idx))) { + retcode = EFAULT; + goto done; + } + if (DRM_COPY_TO_USER(&request.list[i].total, + &dma->buflist[i]->total, sizeof(request.list[0].total))) { + retcode = EFAULT; + goto done; + } + if (DRM_COPY_TO_USER(&request.list[i].used, &zero, + sizeof(zero))) { + retcode = EFAULT; + goto done; + } + address = vaddr + dma->buflist[i]->offset; /* *** */ + if (DRM_COPY_TO_USER(&request.list[i].address, &address, + sizeof(address))) { + retcode = EFAULT; + goto done; + } + } + + done: + request.count = dma->buf_count; + + DRM_DEBUG( "%d buffers, retcode = %d\n", request.count, retcode ); + + DRM_COPY_TO_USER_IOCTL((drm_buf_map_t *)data, request, sizeof(request)); + + return DRM_ERR(retcode); +} diff --git a/sys/dev/drm/drm_context.c b/sys/dev/drm/drm_context.c new file mode 100644 index 00000000000..3f98fdb3fb0 --- /dev/null +++ b/sys/dev/drm/drm_context.c @@ -0,0 +1,350 @@ +/* drm_context.h -- IOCTLs for generic contexts -*- linux-c -*- + * Created: Fri Nov 24 18:31:37 2000 by gareth@valinux.com + */ +/*- + * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_context.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +/* ================================================================ + * Context bitmap support + */ + +void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle) +{ + if (ctx_handle < 0 || ctx_handle >= DRM_MAX_CTXBITMAP || + dev->ctx_bitmap == NULL) { + DRM_ERROR("Attempt to free invalid context handle: %d\n", + ctx_handle); + return; + } + + DRM_LOCK(); + clear_bit(ctx_handle, dev->ctx_bitmap); + dev->context_sareas[ctx_handle] = NULL; + DRM_UNLOCK(); + return; +} + +int drm_ctxbitmap_next(drm_device_t *dev) +{ + int bit; + + if (dev->ctx_bitmap == NULL) + return -1; + + DRM_LOCK(); + bit = find_first_zero_bit( dev->ctx_bitmap, DRM_MAX_CTXBITMAP ); + if (bit >= DRM_MAX_CTXBITMAP) { + DRM_UNLOCK(); + return -1; + } + + set_bit(bit, dev->ctx_bitmap); + DRM_DEBUG("drm_ctxbitmap_next bit : %d\n", bit); + if ((bit+1) > dev->max_context) { + dev->max_context = (bit+1); + if (dev->context_sareas != NULL) { + drm_local_map_t **ctx_sareas; + + ctx_sareas = realloc(dev->context_sareas, + dev->max_context * sizeof(*dev->context_sareas), + M_DRM, M_NOWAIT); + if (ctx_sareas == NULL) { + clear_bit(bit, dev->ctx_bitmap); + DRM_UNLOCK(); + return -1; + } + dev->context_sareas = ctx_sareas; + dev->context_sareas[bit] = NULL; + } else { + /* max_context == 1 at this point */ + dev->context_sareas = malloc(dev->max_context * + sizeof(*dev->context_sareas), M_DRM, M_NOWAIT); + if (dev->context_sareas == NULL) { + clear_bit(bit, dev->ctx_bitmap); + DRM_UNLOCK(); + return -1; + } + dev->context_sareas[bit] = NULL; + } + } + DRM_UNLOCK(); + return bit; +} + +int drm_ctxbitmap_init(drm_device_t *dev) +{ + int i; + int temp; + + DRM_LOCK(); + dev->ctx_bitmap = malloc(PAGE_SIZE, M_DRM, M_NOWAIT | M_ZERO); + if ( dev->ctx_bitmap == NULL ) { + DRM_UNLOCK(); + return DRM_ERR(ENOMEM); + } + dev->context_sareas = NULL; + dev->max_context = -1; + DRM_UNLOCK(); + + for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) { + temp = drm_ctxbitmap_next(dev); + DRM_DEBUG( "drm_ctxbitmap_init : %d\n", temp ); + } + + return 0; +} + +void drm_ctxbitmap_cleanup(drm_device_t *dev) +{ + DRM_LOCK(); + if (dev->context_sareas != NULL) + free(dev->context_sareas, M_DRM); + free(dev->ctx_bitmap, M_DRM); + DRM_UNLOCK(); +} + +/* ================================================================ + * Per Context SAREA Support + */ + +int drm_getsareactx( DRM_IOCTL_ARGS ) +{ + DRM_DEVICE; + drm_ctx_priv_map_t request; + drm_local_map_t *map; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_ctx_priv_map_t *)data, + sizeof(request) ); + + DRM_LOCK(); + if (dev->max_context < 0 || request.ctx_id >= (unsigned) dev->max_context) { + DRM_UNLOCK(); + return DRM_ERR(EINVAL); + } + + map = dev->context_sareas[request.ctx_id]; + DRM_UNLOCK(); + + request.handle = map->handle; + + DRM_COPY_TO_USER_IOCTL( (drm_ctx_priv_map_t *)data, request, sizeof(request) ); + + return 0; +} + +int drm_setsareactx( DRM_IOCTL_ARGS ) +{ + DRM_DEVICE; + drm_ctx_priv_map_t request; + drm_local_map_t *map = NULL; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_ctx_priv_map_t *)data, + sizeof(request) ); + + DRM_LOCK(); + TAILQ_FOREACH(map, &dev->maplist, link) { + if (map->handle == request.handle) { + if (dev->max_context < 0) + goto bad; + if (request.ctx_id >= (unsigned) dev->max_context) + goto bad; + dev->context_sareas[request.ctx_id] = map; + DRM_UNLOCK(); + return 0; + } + } + +bad: + DRM_UNLOCK(); + return DRM_ERR(EINVAL); +} + +/* ================================================================ + * The actual DRM context handling routines + */ + +int drm_context_switch(drm_device_t *dev, int old, int new) +{ + if ( test_and_set_bit( 0, &dev->context_flag ) ) { + DRM_ERROR( "Reentering -- FIXME\n" ); + return DRM_ERR(EBUSY); + } + + DRM_DEBUG( "Context switch from %d to %d\n", old, new ); + + if ( new == dev->last_context ) { + clear_bit( 0, &dev->context_flag ); + return 0; + } + + return 0; +} + +int drm_context_switch_complete(drm_device_t *dev, int new) +{ + dev->last_context = new; /* PRE/POST: This is the _only_ writer. */ + + if ( !_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ) { + DRM_ERROR( "Lock isn't held after context switch\n" ); + } + + /* If a context switch is ever initiated + when the kernel holds the lock, release + that lock here. */ + clear_bit( 0, &dev->context_flag ); + + return 0; +} + +int drm_resctx(DRM_IOCTL_ARGS) +{ + drm_ctx_res_t res; + drm_ctx_t ctx; + int i; + + DRM_COPY_FROM_USER_IOCTL( res, (drm_ctx_res_t *)data, sizeof(res) ); + + if ( res.count >= DRM_RESERVED_CONTEXTS ) { + bzero(&ctx, sizeof(ctx)); + for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) { + ctx.handle = i; + if ( DRM_COPY_TO_USER( &res.contexts[i], + &ctx, sizeof(ctx) ) ) + return DRM_ERR(EFAULT); + } + } + res.count = DRM_RESERVED_CONTEXTS; + + DRM_COPY_TO_USER_IOCTL( (drm_ctx_res_t *)data, res, sizeof(res) ); + + return 0; +} + +int drm_addctx(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_ctx_t ctx; + + DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) ); + + ctx.handle = drm_ctxbitmap_next(dev); + if ( ctx.handle == DRM_KERNEL_CONTEXT ) { + /* Skip kernel's context and get a new one. */ + ctx.handle = drm_ctxbitmap_next(dev); + } + DRM_DEBUG( "%d\n", ctx.handle ); + if ( ctx.handle == -1 ) { + DRM_DEBUG( "Not enough free contexts.\n" ); + /* Should this return -EBUSY instead? */ + return DRM_ERR(ENOMEM); + } + + if (dev->driver.context_ctor && ctx.handle != DRM_KERNEL_CONTEXT) { + DRM_LOCK(); + dev->driver.context_ctor(dev, ctx.handle); + DRM_UNLOCK(); + } + + DRM_COPY_TO_USER_IOCTL( (drm_ctx_t *)data, ctx, sizeof(ctx) ); + + return 0; +} + +int drm_modctx(DRM_IOCTL_ARGS) +{ + /* This does nothing */ + return 0; +} + +int drm_getctx(DRM_IOCTL_ARGS) +{ + drm_ctx_t ctx; + + DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) ); + + /* This is 0, because we don't handle any context flags */ + ctx.flags = 0; + + DRM_COPY_TO_USER_IOCTL( (drm_ctx_t *)data, ctx, sizeof(ctx) ); + + return 0; +} + +int drm_switchctx(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_ctx_t ctx; + + DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) ); + + DRM_DEBUG( "%d\n", ctx.handle ); + return drm_context_switch(dev, dev->last_context, ctx.handle); +} + +int drm_newctx(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_ctx_t ctx; + + DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) ); + + DRM_DEBUG( "%d\n", ctx.handle ); + drm_context_switch_complete(dev, ctx.handle); + + return 0; +} + +int drm_rmctx(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_ctx_t ctx; + + DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) ); + + DRM_DEBUG( "%d\n", ctx.handle ); + if ( ctx.handle != DRM_KERNEL_CONTEXT ) { + if (dev->driver.context_dtor) { + DRM_LOCK(); + dev->driver.context_dtor(dev, ctx.handle); + DRM_UNLOCK(); + } + + drm_ctxbitmap_free(dev, ctx.handle); + } + + return 0; +} diff --git a/sys/dev/drm/drm_dma.c b/sys/dev/drm/drm_dma.c new file mode 100644 index 00000000000..d860d356071 --- /dev/null +++ b/sys/dev/drm/drm_dma.c @@ -0,0 +1,135 @@ +/* drm_dma.c -- DMA IOCTL and function support -*- linux-c -*- + * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com + */ +/*- + * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_dma.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +int drm_dma_setup(drm_device_t *dev) +{ + + dev->dma = malloc(sizeof(*dev->dma), M_DRM, M_NOWAIT | M_ZERO); + if (dev->dma == NULL) + return DRM_ERR(ENOMEM); + + DRM_SPININIT(dev->dma_lock, "drmdma"); + + return 0; +} + +void drm_dma_takedown(drm_device_t *dev) +{ + drm_device_dma_t *dma = dev->dma; + int i, j; + + if (dma == NULL) + return; + + /* Clear dma buffers */ + for (i = 0; i <= DRM_MAX_ORDER; i++) { + if (dma->bufs[i].seg_count) { + DRM_DEBUG("order %d: buf_count = %d," + " seg_count = %d\n", + i, + dma->bufs[i].buf_count, + dma->bufs[i].seg_count); + for (j = 0; j < dma->bufs[i].seg_count; j++) { + drm_pci_free(dev, dma->bufs[i].seglist[j]); + } + free(dma->bufs[i].seglist, M_DRM); + } + + if (dma->bufs[i].buf_count) { + for (j = 0; j < dma->bufs[i].buf_count; j++) { + free(dma->bufs[i].buflist[j].dev_private, + M_DRM); + } + free(dma->bufs[i].buflist, M_DRM); + } + } + + free(dma->buflist, M_DRM); + free(dma->pagelist, M_DRM); + free(dev->dma, M_DRM); + dev->dma = NULL; + DRM_SPINUNINIT(dev->dma_lock); +} + + +void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf) +{ + if (!buf) return; + + buf->pending = 0; + buf->filp = NULL; + buf->used = 0; +} + +void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp) +{ + drm_device_dma_t *dma = dev->dma; + int i; + + if (!dma) return; + for (i = 0; i < dma->buf_count; i++) { + if (dma->buflist[i]->filp == filp) { + switch (dma->buflist[i]->list) { + case DRM_LIST_NONE: + drm_free_buffer(dev, dma->buflist[i]); + break; + case DRM_LIST_WAIT: + dma->buflist[i]->list = DRM_LIST_RECLAIM; + break; + default: + /* Buffer already on hardware. */ + break; + } + } + } +} + +/* Call into the driver-specific DMA handler */ +int drm_dma(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + + if (dev->driver.dma_ioctl) { + return dev->driver.dma_ioctl(kdev, cmd, data, flags, p, filp); + } else { + DRM_DEBUG("DMA ioctl on driver with no dma handler\n"); + return EINVAL; + } +} diff --git a/sys/dev/drm/drm_drawable.c b/sys/dev/drm/drm_drawable.c new file mode 100644 index 00000000000..3c320ca9e3c --- /dev/null +++ b/sys/dev/drm/drm_drawable.c @@ -0,0 +1,56 @@ +/* drm_drawable.h -- IOCTLs for drawables -*- linux-c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_drawable.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +int drm_adddraw(DRM_IOCTL_ARGS) +{ + drm_draw_t draw; + + draw.handle = 0; /* NOOP */ + DRM_DEBUG("%d\n", draw.handle); + + DRM_COPY_TO_USER_IOCTL( (drm_draw_t *)data, draw, sizeof(draw) ); + + return 0; +} + +int drm_rmdraw(DRM_IOCTL_ARGS) +{ + return 0; /* NOOP */ +} diff --git a/sys/dev/drm/drm_drv.c b/sys/dev/drm/drm_drv.c new file mode 100644 index 00000000000..1a0504d481a --- /dev/null +++ b/sys/dev/drm/drm_drv.c @@ -0,0 +1,1056 @@ +/* drm_drv.h -- Generic driver template -*- linux-c -*- + * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com + */ +/*- + * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_drv.c,v 1.6 2006/09/07 23:04:47 anholt Exp $"); +*/ + +#include "drmP.h" +#include "drm.h" +#include "drm_sarea.h" + +#ifdef DRM_DEBUG_DEFAULT_ON +int drm_debug_flag = 1; +#else +int drm_debug_flag = 0; +#endif + +static int drm_load(drm_device_t *dev); +static void drm_unload(drm_device_t *dev); +static drm_pci_id_list_t *drm_find_description(int vendor, int device, + drm_pci_id_list_t *idlist); + +#ifdef __FreeBSD__ +#define DRIVER_SOFTC(unit) \ + ((drm_device_t *)devclass_get_softc(drm_devclass, unit)) + +MODULE_VERSION(drm, 1); +MODULE_DEPEND(drm, agp, 1, 1, 1); +MODULE_DEPEND(drm, pci, 1, 1, 1); +#if __FreeBSD_version > 502127 +MODULE_DEPEND(drm, mem, 1, 1, 1); +#endif +#endif /* __FreeBSD__ */ + +#if defined(__NetBSD__) || defined(__OpenBSD__) +#define DRIVER_SOFTC(unit) \ + (((unit)<DRM_MAXUNITS) ? drm_units[(unit)] : NULL) +#endif /* __NetBSD__ || __OpenBSD__ */ + +static drm_ioctl_desc_t drm_ioctls[256] = { + [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { drm_version, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY}, + [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { drm_getmap, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { drm_getclient, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { drm_getstats, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { drm_setversion, DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { drm_rmmap_ioctl, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { drm_getsareactx, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { drm_addctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { drm_getctx, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { drm_resctx, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { drm_lock, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { drm_unlock, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_noop, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { drm_addbufs_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { drm_markbufs, DRM_AUTH|DRM_MASTER }, + [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { drm_infobufs, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { drm_mapbufs, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { drm_freebufs, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { drm_dma, DRM_AUTH }, + + [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { drm_agp_info_ioctl, DRM_AUTH }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, + + [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { drm_wait_vblank, 0 }, +}; + +#ifdef __FreeBSD__ +static struct cdevsw drm_cdevsw = { +#if __FreeBSD_version >= 502103 + .d_version = D_VERSION, +#endif + .d_open = drm_open, + .d_close = drm_close, + .d_read = drm_read, + .d_ioctl = drm_ioctl, + .d_poll = drm_poll, + .d_mmap = drm_mmap, + .d_name = "drm", +#if __FreeBSD_version >= 502103 + .d_flags = D_TRACKCLOSE | D_NEEDGIANT, +#else + .d_maj = 145, + .d_flags = D_TRACKCLOSE, +#endif +#if __FreeBSD_version < 500000 + .d_bmaj = -1 +#endif +}; + +int drm_probe(device_t dev, drm_pci_id_list_t *idlist) +{ + drm_pci_id_list_t *id_entry; + int vendor, device; +#if __FreeBSD_version < 700010 + device_t realdev; + + if (!strcmp(device_get_name(dev), "drmsub")) + realdev = device_get_parent(dev); + else + realdev = dev; + vendor = pci_get_vendor(realdev); + device = pci_get_device(realdev); +#else + vendor = pci_get_vendor(dev); + device = pci_get_device(dev); +#endif + + id_entry = drm_find_description(vendor, device, idlist); + if (id_entry != NULL) { + device_set_desc(dev, id_entry->name); + return 0; + } + + return ENXIO; +} + +int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist) +{ + drm_device_t *dev; + drm_pci_id_list_t *id_entry; + int unit; + + unit = device_get_unit(nbdev); + dev = device_get_softc(nbdev); + +#if __FreeBSD_version < 700010 + if (!strcmp(device_get_name(nbdev), "drmsub")) + dev->device = device_get_parent(nbdev); + else + dev->device = nbdev; +#else + dev->device = nbdev; +#endif + dev->devnode = make_dev(&drm_cdevsw, + unit, + DRM_DEV_UID, + DRM_DEV_GID, + DRM_DEV_MODE, + "dri/card%d", unit); +#if __FreeBSD_version >= 500000 + mtx_init(&dev->dev_lock, "drm device", NULL, MTX_DEF); +#endif + + id_entry = drm_find_description(pci_get_vendor(dev->device), + pci_get_device(dev->device), idlist); + dev->id_entry = id_entry; + + return drm_load(dev); +} + +int drm_detach(device_t dev) +{ + drm_unload(device_get_softc(dev)); + return 0; +} + +#ifndef DRM_DEV_NAME +#define DRM_DEV_NAME "drm" +#endif + +devclass_t drm_devclass; + +#elif defined(__NetBSD__) || defined(__OpenBSD__) + +const struct cdevsw drm_cdevsw = { + drm_open, + drm_close, + drm_read, + nowrite, + drm_ioctl, + nostop, + notty, + drm_poll, + drm_mmap, + nokqfilter, + D_TTY +}; + +int drm_refcnt = 0; + +drm_device_t *drm_units[DRM_MAXUNITS]; + +static int init_units = 1; + +int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); +void drm_attach(struct device *kdev, struct pci_attach_args *pa, + drm_pci_id_list_t *idlist); + +int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist) +{ + int unit; + drm_pci_id_list_t *id_entry; + + /* first make sure there is place for the device */ + for(unit=0; unit<DRM_MAXUNITS; unit++) + if(drm_units[unit] == NULL) break; + if(unit == DRM_MAXUNITS) return 0; + + id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), + PCI_PRODUCT(pa->pa_id), idlist); + if (id_entry != NULL) { + return 1; + } + + return 0; +} + +void drm_attach(struct device *kdev, struct pci_attach_args *pa, + drm_pci_id_list_t *idlist) +{ + int unit; + drm_device_t *dev; + drm_pci_id_list_t *id_entry; + + if(init_units) + { + for(unit=0; unit<DRM_MAXUNITS;unit++) + drm_units[unit] = NULL; + init_units = 0; + } + + for(unit=0; unit<DRM_MAXUNITS; unit++) + if(drm_units[unit] == NULL) break; + /* This should not happen, since drm_probe made sure there was room */ + if(unit == DRM_MAXUNITS) return; + + dev = drm_units[unit] = (drm_device_t*)kdev; + dev->unit = unit; + + id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), + PCI_PRODUCT(pa->pa_id), idlist); + + dev->id_entry = id_entry; + dev->driver.id_entry = id_entry; + + dev->unique = NULL; + dev->unique_len = 0; + dev->if_version = 0; + dev->flags = 0; + dev->open_count = 0; + dev->buf_use = 0; + dev->counters = 0; + /* dev->files : drm_load */ + /* dev->magiclist : drm_firstopen */ + /* dev->maplist : drm_load */ + dev->context_sareas = NULL; + dev->max_context = 0; + DRM_SPININIT(dev->dev_lock, "drm device"); + dev->dma = NULL; + /* dev->irq : drm_load */ + dev->irq_enabled = 0; + dev->pa = *pa; + dev->irqh = NULL; + for(unit=0; unit<DRM_MAX_PCI_RESOURCE; unit++) + { + dev->pci_map_data[unit].mapped = 0; + dev->pci_map_data[unit].maptype = + pci_mapreg_type(dev->pa.pa_pc, dev->pa.pa_tag, + PCI_MAPREG_START + unit*4); + if(pci_mapreg_info(dev->pa.pa_pc, dev->pa.pa_tag, + PCI_MAPREG_START + unit*4, + dev->pci_map_data[unit].maptype, + &(dev->pci_map_data[unit].base), + &(dev->pci_map_data[unit].size), + &(dev->pci_map_data[unit].flags))) + { + dev->pci_map_data[unit].base = 0; + dev->pci_map_data[unit].size = 0; + } + if(dev->pci_map_data[unit].maptype == PCI_MAPREG_TYPE_MEM) + dev->pci_map_data[unit].flags |= BUS_SPACE_MAP_LINEAR; + } + dev->context_flag = 0; + dev->last_context = 0; + dev->vbl_queue = 0; + dev->vbl_received = 0; + dev->buf_pgid = 0; + dev->sysctl = NULL; + dev->agp = NULL; + dev->sg = NULL; + dev->ctx_bitmap = NULL; + dev->dev_private = NULL; + dev->agp_buffer_token = 0; + dev->agp_buffer_map = 0; + /* dev->unit - already done */ + + DRM_INFO("%s (unit %d)\n", id_entry->name, dev->unit); + drm_load(dev); +} + +int drm_detach(struct device *self, int flags) +{ + drm_device_t *dev = (drm_device_t*)self; + drm_unload(dev); + drm_units[dev->unit] = NULL; + return 0; +} + +int drm_activate(struct device *self, enum devact act) +{ + switch (act) { + case DVACT_ACTIVATE: + return (EOPNOTSUPP); + break; + + case DVACT_DEACTIVATE: + /* FIXME */ + break; + } + return (0); +} + +#endif /* __NetBSD__ || __OpenBSD__ */ + +drm_pci_id_list_t *drm_find_description(int vendor, int device, + drm_pci_id_list_t *idlist) +{ + int i = 0; + + for (i = 0; idlist[i].vendor != 0; i++) { + if ((idlist[i].vendor == vendor) && + (idlist[i].device == device)) { + return &idlist[i]; + } + } + return NULL; +} + +static int drm_firstopen(drm_device_t *dev) +{ + drm_local_map_t *map; + int i; + + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + + /* prebuild the SAREA */ + i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, + _DRM_CONTAINS_LOCK, &map); + if (i != 0) + return i; + + if (dev->driver.firstopen) + dev->driver.firstopen(dev); + + dev->buf_use = 0; + + if (dev->driver.use_dma) { + i = drm_dma_setup(dev); + if (i != 0) + return i; + } + + dev->counters = 6; + dev->types[0] = _DRM_STAT_LOCK; + dev->types[1] = _DRM_STAT_OPENS; + dev->types[2] = _DRM_STAT_CLOSES; + dev->types[3] = _DRM_STAT_IOCTLS; + dev->types[4] = _DRM_STAT_LOCKS; + dev->types[5] = _DRM_STAT_UNLOCKS; + + for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ ) + atomic_set( &dev->counts[i], 0 ); + + for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) { + dev->magiclist[i].head = NULL; + dev->magiclist[i].tail = NULL; + } + + dev->lock.lock_queue = 0; + dev->irq_enabled = 0; + dev->context_flag = 0; + dev->last_context = 0; + dev->if_version = 0; + +#ifdef __FreeBSD__ + dev->buf_sigio = NULL; +#elif defined(__NetBSD__) || defined(__OpenBSD__) + dev->buf_pgid = 0; +#endif + + DRM_DEBUG( "\n" ); + + return 0; +} + +static int drm_lastclose(drm_device_t *dev) +{ + drm_magic_entry_t *pt, *next; + drm_local_map_t *map; +#ifdef __FreeBSD__ + drm_local_map_t *mapsave; +#endif +#ifdef __NetBSD__ + struct drm_file *filep; +#endif + int i; + + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + + DRM_DEBUG( "\n" ); + + if (dev->driver.lastclose != NULL) + dev->driver.lastclose(dev); + + if (dev->irq_enabled) + drm_irq_uninstall(dev); + + if ( dev->unique ) { + free(dev->unique, M_DRM); + dev->unique = NULL; + dev->unique_len = 0; + } + /* Clear pid list */ + for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) { + for ( pt = dev->magiclist[i].head ; pt ; pt = next ) { + next = pt->next; + free(pt, M_DRM); + } + dev->magiclist[i].head = dev->magiclist[i].tail = NULL; + } + + /* Clear AGP information */ + if ( dev->agp ) { + drm_agp_mem_t *entry; + drm_agp_mem_t *nexte; + + /* Remove AGP resources, but leave dev->agp intact until + * drm_unload is called. + */ + for ( entry = dev->agp->memory ; entry ; entry = nexte ) { + nexte = entry->next; + if ( entry->bound ) + drm_agp_unbind_memory(entry->handle); + drm_agp_free_memory(entry->handle); + free(entry, M_DRM); + } + dev->agp->memory = NULL; + + if (dev->agp->acquired) + drm_agp_release(dev); + + dev->agp->acquired = 0; + dev->agp->enabled = 0; + } + if (dev->sg != NULL) { + drm_sg_cleanup(dev->sg); + dev->sg = NULL; + } + +#ifdef __FreeBSD__ + TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { + drm_rmmap(dev, map); + } +#elif defined(__NetBSD__) + while ((map = TAILQ_FIRST(&dev->maplist)) != NULL) { + drm_rmmap(dev, map); + } + + for(i = 0; i<DRM_MAX_PCI_RESOURCE; i++) { + if (dev->pci_map_data[i].mapped > 1) { + bus_space_unmap(dev->pci_map_data[i].maptype, + dev->pci_map_data[i].bsh, + dev->pci_map_data[i].size); + dev->pci_map_data[i].mapped = 0; + DRM_DEBUG("WARNING: had to unmap resource %d\n", i); + } + } +#endif + + drm_dma_takedown(dev); + DRM_DEBUG( "\n" ); + if ( dev->lock.hw_lock ) { + dev->lock.hw_lock = NULL; /* SHM removed */ + dev->lock.filp = NULL; + DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); + } + +#ifdef __NetBSD__ + while ((filep = TAILQ_FIRST(&dev->files)) != NULL) { + DRM_INFO("had to remove pid %d still in file list\n", + (int) filep->pid); + TAILQ_REMOVE(&dev->files, filep, link); + free(filep, M_DRM); + } +#endif + + return 0; +} + +static int drm_load(drm_device_t *dev) +{ + int retcode; + + DRM_DEBUG( "\n" ); + +#ifdef __FreeBSD__ + dev->irq = pci_get_irq(dev->device); + /* XXX Fix domain number (alpha hoses) */ + dev->pci_domain = 0; + dev->pci_bus = pci_get_bus(dev->device); + dev->pci_slot = pci_get_slot(dev->device); + dev->pci_func = pci_get_function(dev->device); + + dev->pci_vendor = pci_get_vendor(dev->device); + dev->pci_device = pci_get_device(dev->device); +#elif defined(__NetBSD__) + dev->irq = dev->pa.pa_intrline; + dev->pci_domain = 0; + dev->pci_bus = dev->pa.pa_bus; + dev->pci_slot = dev->pa.pa_device; + dev->pci_func = dev->pa.pa_function; + + dev->pci_vendor = PCI_VENDOR(dev->pa.pa_id); + dev->pci_device = PCI_PRODUCT(dev->pa.pa_id); +#endif + + TAILQ_INIT(&dev->maplist); + + drm_mem_init(); + drm_sysctl_init(dev); + TAILQ_INIT(&dev->files); + + if (dev->driver.load != NULL) { + DRM_LOCK(); + retcode = dev->driver.load(dev, dev->id_entry->driver_private); + DRM_UNLOCK(); + if (retcode != 0) + goto error; + } + + if (dev->driver.use_agp) { + if (drm_device_is_agp(dev)) + dev->agp = drm_agp_init(); + if (dev->driver.require_agp && dev->agp == NULL) { + DRM_ERROR("Card isn't AGP, or couldn't initialize " + "AGP.\n"); + retcode = DRM_ERR(ENOMEM); + goto error; + } + if (dev->agp != NULL) { + if (drm_mtrr_add(dev->agp->info.ai_aperture_base, + dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) + dev->agp->mtrr = 1; + } + } + + retcode = drm_ctxbitmap_init(dev); + if (retcode != 0) { + DRM_ERROR("Cannot allocate memory for context bitmap.\n"); + goto error; + } + + DRM_INFO("Initialized %s %d.%d.%d %s\n", + dev->driver.name, + dev->driver.major, + dev->driver.minor, + dev->driver.patchlevel, + dev->driver.date); + + return 0; + +error: + drm_sysctl_cleanup(dev); + DRM_LOCK(); + drm_lastclose(dev); + DRM_UNLOCK(); +#ifdef __FreeBSD__ + destroy_dev(dev->devnode); +#if __FreeBSD_version >= 500000 + mtx_destroy(&dev->dev_lock); +#endif +#endif +#ifdef __NetBSD__ + DRM_SPINUNINIT(&dev->dev_lock); +#endif + return retcode; +} + +static void drm_unload(drm_device_t *dev) +{ + int i; + + DRM_DEBUG( "\n" ); + + drm_sysctl_cleanup(dev); +#ifdef __FreeBSD__ + destroy_dev(dev->devnode); +#endif + + drm_ctxbitmap_cleanup(dev); + + if (dev->agp && dev->agp->mtrr) { + int __unused retcode; + + retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, + dev->agp->info.ai_aperture_size, DRM_MTRR_WC); + DRM_DEBUG("mtrr_del = %d", retcode); + } + + DRM_LOCK(); + drm_lastclose(dev); + DRM_UNLOCK(); + + /* Clean up PCI resources allocated by drm_bufs.c. We're not really + * worried about resource consumption while the DRM is inactive (between + * lastclose and firstopen or unload) because these aren't actually + * taking up KVA, just keeping the PCI resource allocated. + */ +#ifdef __FreeBSD__ + for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { + if (dev->pcir[i] == NULL) + continue; + bus_release_resource(dev->device, SYS_RES_MEMORY, + dev->pcirid[i], dev->pcir[i]); + dev->pcir[i] = NULL; + } +#elif defined(__NetBSD__) + i = 0; + + for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) + if (dev->pci_map_data[i].mapped != 0) + { + bus_space_unmap(dev->pa.pa_memt, + dev->pci_map_data[i].bsh, + dev->pci_map_data[i].size); + dev->pci_map_data[i].mapped = 0; + } +#endif + + if ( dev->agp ) { + free(dev->agp, M_DRM); + dev->agp = NULL; + } + + if (dev->driver.unload != NULL) + dev->driver.unload(dev); + + drm_mem_uninit(); +#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 + mtx_destroy(&dev->dev_lock); +#endif +#ifdef __NetBSD__ + DRM_SPINUNINIT(&dev->dev_lock); +#endif +} + + +int drm_version(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_version_t drmversion; + int len; + + DRM_COPY_FROM_USER_IOCTL( drmversion, (drm_version_t *)data, sizeof(drmversion) ); + +#define DRM_COPY( name, value ) \ + len = strlen( value ); \ + if ( len > name##_len ) len = name##_len; \ + name##_len = strlen( value ); \ + if ( len && name ) { \ + if ( DRM_COPY_TO_USER( name, value, len ) ) \ + return DRM_ERR(EFAULT); \ + } + + drmversion.version_major = dev->driver.major; + drmversion.version_minor = dev->driver.minor; + drmversion.version_patchlevel = dev->driver.patchlevel; + + DRM_COPY(drmversion.name, dev->driver.name); + DRM_COPY(drmversion.date, dev->driver.date); + DRM_COPY(drmversion.desc, dev->driver.desc); + + DRM_COPY_TO_USER_IOCTL( (drm_version_t *)data, drmversion, sizeof(drmversion) ); + + return 0; +} + +int drm_open(DRM_CDEV kdev, int flags, int fmt, DRM_STRUCTCDEVPROC *p) +{ + drm_device_t *dev = NULL; + int retcode = 0; + + dev = DRIVER_SOFTC(minor(kdev)); + + DRM_DEBUG( "open_count = %d\n", dev->open_count ); + +#ifdef __FreeBSD__ + retcode = drm_open_helper(kdev, flags, fmt, p, dev); +#elif defined(__NetBSD__) + retcode = drm_open_helper(kdev, flags, fmt, p->l_proc, dev); +#endif + + if ( !retcode ) { + atomic_inc( &dev->counts[_DRM_STAT_OPENS] ); + DRM_LOCK(); +#ifdef __FreeBSD__ + device_busy(dev->device); +#endif + if ( !dev->open_count++ ) + retcode = drm_firstopen(dev); + DRM_UNLOCK(); + } + + return retcode; +} + +int drm_close(DRM_CDEV kdev, int flags, int fmt, DRM_STRUCTCDEVPROC *p) +{ + drm_file_t *priv; + DRM_DEVICE; + int retcode = 0; + DRMFILE filp = (void *)(uintptr_t)(DRM_CURRENTPID); + + DRM_DEBUG( "open_count = %d\n", dev->open_count ); + + DRM_LOCK(); + +#ifdef __FreeBSD__ + priv = drm_find_file_by_proc(dev, p); +#elif defined(__NetBSD__) + priv = drm_find_file_by_proc(dev, p->l_proc); +#endif + if (!priv) { + DRM_UNLOCK(); + DRM_ERROR("can't find authenticator\n"); + return EINVAL; + } + + if (dev->driver.preclose != NULL) + dev->driver.preclose(dev, filp); + + /* ======================================================== + * Begin inline drm_release + */ + +#ifdef __FreeBSD__ + DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", + DRM_CURRENTPID, (long)dev->device, dev->open_count ); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", + DRM_CURRENTPID, (long)&dev->device, dev->open_count); +#endif + + if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) + && dev->lock.filp == filp) { + DRM_DEBUG("Process %d dead, freeing lock for context %d\n", + DRM_CURRENTPID, + _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); + if (dev->driver.reclaim_buffers_locked != NULL) + dev->driver.reclaim_buffers_locked(dev, filp); + + drm_lock_free(dev, &dev->lock.hw_lock->lock, + _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); + + /* FIXME: may require heavy-handed reset of + hardware at this point, possibly + processed via a callback to the X + server. */ + } else if (dev->driver.reclaim_buffers_locked != NULL && + dev->lock.hw_lock != NULL) { + /* The lock is required to reclaim buffers */ + for (;;) { + if ( !dev->lock.hw_lock ) { + /* Device has been unregistered */ + retcode = DRM_ERR(EINTR); + break; + } + if (drm_lock_take(&dev->lock.hw_lock->lock, + DRM_KERNEL_CONTEXT)) { + dev->lock.filp = filp; + dev->lock.lock_time = jiffies; + atomic_inc( &dev->counts[_DRM_STAT_LOCKS] ); + break; /* Got lock */ + } + /* Contention */ +#if defined(__FreeBSD__) && __FreeBSD_version > 500000 + retcode = msleep((void *)&dev->lock.lock_queue, + &dev->dev_lock, PZERO | PCATCH, "drmlk2", 0); +#else + retcode = ltsleep((void *)&dev->lock.lock_queue, + PZERO | PCATCH, "drmlk2", 0, &dev->dev_lock); +#endif + if (retcode) + break; + } + if (retcode == 0) { + dev->driver.reclaim_buffers_locked(dev, filp); + drm_lock_free(dev, &dev->lock.hw_lock->lock, + DRM_KERNEL_CONTEXT); + } + } + + if (dev->driver.use_dma && !dev->driver.reclaim_buffers_locked) + drm_reclaim_buffers(dev, filp); + +#if defined (__FreeBSD__) && (__FreeBSD_version >= 500000) + funsetown(&dev->buf_sigio); +#elif defined(__FreeBSD__) + funsetown(dev->buf_sigio); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + dev->buf_pgid = 0; +#endif /* __NetBSD__ || __OpenBSD__ */ + +#ifdef __NetBSD__ + /* On NetBSD, close will only be called once */ + DRM_DEBUG("setting priv->refs %d to 1\n", (int)priv->refs); + priv->refs = 1; +#endif + if (--priv->refs == 0) { + if (dev->driver.postclose != NULL) + dev->driver.postclose(dev, priv); + TAILQ_REMOVE(&dev->files, priv, link); + free(priv, M_DRM); + } + + /* ======================================================== + * End inline drm_release + */ + + atomic_inc( &dev->counts[_DRM_STAT_CLOSES] ); +#ifdef __FreeBSD__ + device_unbusy(dev->device); +#endif +#ifdef __NetBSD__ + /* On NetBSD, close will only be called once */ + DRM_DEBUG("setting open_count %d to 1\n", (int)dev->open_count); + dev->open_count = 1; +#endif + if (--dev->open_count == 0) { + retcode = drm_lastclose(dev); + } + + DRM_UNLOCK(); + + return retcode; +} + +/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. + */ +int drm_ioctl(DRM_CDEV kdev, u_long cmd, void *data, int flags, + DRM_STRUCTCDEVPROC *p) +{ + DRM_DEVICE; + int retcode = 0; + drm_ioctl_desc_t *ioctl; + int (*func)(DRM_IOCTL_ARGS); + int nr = DRM_IOCTL_NR(cmd); + int is_driver_ioctl = 0; + drm_file_t *priv; + DRMFILE filp = (DRMFILE)(uintptr_t)DRM_CURRENTPID; + + DRM_LOCK(); +#ifdef __FreeBSD__ + priv = drm_find_file_by_proc(dev, p); +#elif defined(__NetBSD__) + priv = drm_find_file_by_proc(dev, p->l_proc); +#endif + DRM_UNLOCK(); + if (priv == NULL) { + DRM_ERROR("can't find authenticator\n"); + return EINVAL; + } + + atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] ); + ++priv->ioctl_count; + +#ifdef __FreeBSD__ + DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", + DRM_CURRENTPID, cmd, nr, (long)dev->device, priv->authenticated ); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", + DRM_CURRENTPID, cmd, nr, (long)&dev->device, priv->authenticated ); +#endif + + switch (cmd) { + case FIONBIO: + case FIOASYNC: + return 0; + +#ifdef __FreeBSD__ + case FIOSETOWN: + return fsetown(*(int *)data, &dev->buf_sigio); + + case FIOGETOWN: +#if (__FreeBSD_version >= 500000) + *(int *) data = fgetown(&dev->buf_sigio); +#else + *(int *) data = fgetown(dev->buf_sigio); +#endif + return 0; +#endif /* __FreeBSD__ */ +#if defined(__NetBSD__) || defined(__OpenBSD__) + case SIOCSPGRP: + case TIOCSPGRP: + case FIOSETOWN: + return fsetown(p->l_proc, &dev->buf_pgid, cmd, data); + + case SIOCGPGRP: + case TIOCGPGRP: + case FIOGETOWN: + return fgetown(p->l_proc, dev->buf_pgid, cmd, data); +#endif /* __NetBSD__ */ + } + + if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { + DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); + return EINVAL; + } + + ioctl = &drm_ioctls[nr]; + /* It's not a core DRM ioctl, try driver-specific. */ + if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { + /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ + nr -= DRM_COMMAND_BASE; + if (nr > dev->driver.max_ioctl) { + DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", + nr, dev->driver.max_ioctl); + return EINVAL; + } + ioctl = &dev->driver.ioctls[nr]; + is_driver_ioctl = 1; + } + func = ioctl->func; + + if (func == NULL) { + DRM_DEBUG( "no function\n" ); + return EINVAL; + } + /* ioctl->master check should be against something in the filp set up + * for the first opener, but it doesn't matter yet. + */ +#ifdef __FreeBSD__ + if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || +#elif defined(__NetBSD__) + if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p->l_proc)) || +#endif + ((ioctl->flags & DRM_AUTH) && !priv->authenticated) || + ((ioctl->flags & DRM_MASTER) && !priv->master)) + return EACCES; + + if (is_driver_ioctl) + DRM_LOCK(); + retcode = func(kdev, cmd, data, flags, p, filp); + if (is_driver_ioctl) + DRM_UNLOCK(); + + if (retcode != 0) + DRM_DEBUG(" returning %d\n", retcode); + + return DRM_ERR(retcode); +} + + +#if DRM_LINUX + +#include <sys/sysproto.h> + +MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); + +#define LINUX_IOCTL_DRM_MIN 0x6400 +#define LINUX_IOCTL_DRM_MAX 0x64ff + +static linux_ioctl_function_t drm_linux_ioctl; +static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, + LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; + +SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, + linux_ioctl_register_handler, &drm_handler); +SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, + linux_ioctl_unregister_handler, &drm_handler); + +/* The bits for in/out are switched on Linux */ +#define LINUX_IOC_IN IOC_OUT +#define LINUX_IOC_OUT IOC_IN + +static int +drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) +{ + int error; + int cmd = args->cmd; + + args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); + if (cmd & LINUX_IOC_IN) + args->cmd |= IOC_IN; + if (cmd & LINUX_IOC_OUT) + args->cmd |= IOC_OUT; + + error = ioctl(p, (struct ioctl_args *)args); + + return error; +} +#endif /* DRM_LINUX */ diff --git a/sys/dev/drm/drm_fops.c b/sys/dev/drm/drm_fops.c new file mode 100644 index 00000000000..9029440bda3 --- /dev/null +++ b/sys/dev/drm/drm_fops.c @@ -0,0 +1,139 @@ +/* drm_fops.h -- File operations for DRM -*- linux-c -*- + * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Daryll Strauss <daryll@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_fops.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +drm_file_t *drm_find_file_by_proc(drm_device_t *dev, DRM_STRUCTPROC *p) +{ +#if __FreeBSD_version >= 500021 + uid_t uid = p->td_ucred->cr_svuid; + pid_t pid = p->td_proc->p_pid; +#elif defined(__NetBSD__) + uid_t uid = kauth_cred_getsvuid(p->p_cred); + pid_t pid = p->p_pid; +#else + uid_t uid = p->p_cred->p_svuid; + pid_t pid = p->p_pid; +#endif + drm_file_t *priv; + + DRM_SPINLOCK_ASSERT(&dev->dev_lock); + + TAILQ_FOREACH(priv, &dev->files, link) + if (priv->pid == pid && priv->uid == uid) + return priv; + return NULL; +} + +/* drm_open_helper is called whenever a process opens /dev/drm. */ +int drm_open_helper(DRM_CDEV kdev, int flags, int fmt, DRM_STRUCTPROC *p, + drm_device_t *dev) +{ + int m = minor(kdev); + drm_file_t *priv; + int retcode; + + if (flags & O_EXCL) + return EBUSY; /* No exclusive opens */ + dev->flags = flags; + + DRM_DEBUG("pid = %d, minor = %d\n", DRM_CURRENTPID, m); + + DRM_LOCK(); + priv = drm_find_file_by_proc(dev, p); + if (priv) { + priv->refs++; + } else { + priv = malloc(sizeof(*priv), M_DRM, M_NOWAIT | M_ZERO); + if (priv == NULL) { + DRM_UNLOCK(); + return DRM_ERR(ENOMEM); + } +#if __FreeBSD_version >= 500000 + priv->uid = p->td_ucred->cr_svuid; + priv->pid = p->td_proc->p_pid; +#elif defined(__NetBSD__) + priv->uid = kauth_cred_getsvuid(p->p_cred); + priv->pid = p->p_pid; +#else + priv->uid = p->p_cred->p_svuid; + priv->pid = p->p_pid; +#endif + + priv->refs = 1; + priv->minor = m; + priv->ioctl_count = 0; + + /* for compatibility root is always authenticated */ + priv->authenticated = DRM_SUSER(p); + + if (dev->driver.open) { + retcode = dev->driver.open(dev, priv); + if (retcode != 0) { + free(priv, M_DRM); + DRM_UNLOCK(); + return retcode; + } + } + + /* first opener automatically becomes master */ + priv->master = TAILQ_EMPTY(&dev->files); + + TAILQ_INSERT_TAIL(&dev->files, priv, link); + } + DRM_UNLOCK(); +#ifdef __FreeBSD__ + kdev->si_drv1 = dev; +#endif + return 0; +} + + +/* The drm_read and drm_poll are stubs to prevent spurious errors + * on older X Servers (4.3.0 and earlier) */ + +int drm_read(DRM_CDEV kdev, struct uio *uio, int ioflag) +{ + return 0; +} + +int drm_poll(DRM_CDEV kdev, int events, DRM_STRUCTCDEVPROC *p) +{ + return 0; +} diff --git a/sys/dev/drm/drm_ioctl.c b/sys/dev/drm/drm_ioctl.c new file mode 100644 index 00000000000..77fc1b9c335 --- /dev/null +++ b/sys/dev/drm/drm_ioctl.c @@ -0,0 +1,306 @@ +/* drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*- + * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_ioctl.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +/* + * Beginning in revision 1.1 of the DRM interface, getunique will return + * a unique in the form pci:oooo:bb:dd.f (o=domain, b=bus, d=device, f=function) + * before setunique has been called. The format for the bus-specific part of + * the unique is not defined for any other bus. + */ +int drm_getunique(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_unique_t u; + + DRM_COPY_FROM_USER_IOCTL( u, (drm_unique_t *)data, sizeof(u) ); + + if (u.unique_len >= dev->unique_len) { + if (DRM_COPY_TO_USER(u.unique, dev->unique, dev->unique_len)) + return DRM_ERR(EFAULT); + } + u.unique_len = dev->unique_len; + + DRM_COPY_TO_USER_IOCTL( (drm_unique_t *)data, u, sizeof(u) ); + + return 0; +} + +/* Deprecated in DRM version 1.1, and will return EBUSY when setversion has + * requested version 1.1 or greater. + */ +int drm_setunique(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_unique_t u; + int domain = 0, bus = 0, slot = 0, func = 0, ret = 0; + char *busid; +#ifdef __NetBSD__ + return EOPNOTSUPP; +#endif + + DRM_COPY_FROM_USER_IOCTL( u, (drm_unique_t *)data, sizeof(u) ); + + /* Check and copy in the submitted Bus ID */ + if (!u.unique_len || u.unique_len > 1024) + return DRM_ERR(EINVAL); + + busid = malloc(u.unique_len + 1, M_DRM, M_WAITOK); + if (busid == NULL) + return DRM_ERR(ENOMEM); + + if (DRM_COPY_FROM_USER(busid, u.unique, u.unique_len)) { + free(busid, M_DRM); + return DRM_ERR(EFAULT); + } + busid[u.unique_len] = '\0'; + + /* Return error if the busid submitted doesn't match the device's actual + * busid. + */ +#ifdef __FreeBSD__ + ret = sscanf(busid, "PCI:%d:%d:%d", &bus, &slot, &func); +#endif + if (ret != 3) { + free(busid, M_DRM); + return DRM_ERR(EINVAL); + } + domain = bus >> 8; + bus &= 0xff; + + if ((domain != dev->pci_domain) || + (bus != dev->pci_bus) || + (slot != dev->pci_slot) || + (func != dev->pci_func)) { + free(busid, M_DRM); + return DRM_ERR(EINVAL); + } + + /* Actually set the device's busid now. */ + DRM_LOCK(); + if (dev->unique_len || dev->unique) { + DRM_UNLOCK(); + return DRM_ERR(EBUSY); + } + + dev->unique_len = u.unique_len; + dev->unique = busid; + DRM_UNLOCK(); + + return 0; +} + + +static int +drm_set_busid(drm_device_t *dev) +{ + + DRM_LOCK(); + + if (dev->unique != NULL) { + DRM_UNLOCK(); + return EBUSY; + } + + dev->unique_len = 20; + dev->unique = malloc(dev->unique_len + 1, M_DRM, M_NOWAIT); + if (dev->unique == NULL) { + DRM_UNLOCK(); + return ENOMEM; + } + + snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%1x", + dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func); + + DRM_UNLOCK(); + + return 0; +} + +int drm_getmap(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_map_t map; + drm_local_map_t *mapinlist; + int idx; + int i = 0; + + DRM_COPY_FROM_USER_IOCTL( map, (drm_map_t *)data, sizeof(map) ); + + idx = map.offset; + + DRM_LOCK(); + if (idx < 0) { + DRM_UNLOCK(); + return DRM_ERR(EINVAL); + } + + TAILQ_FOREACH(mapinlist, &dev->maplist, link) { + if (i==idx) { + map.offset = mapinlist->offset; + map.size = mapinlist->size; + map.type = mapinlist->type; + map.flags = mapinlist->flags; + map.handle = mapinlist->handle; + map.mtrr = mapinlist->mtrr; + break; + } + i++; + } + + DRM_UNLOCK(); + + if (mapinlist == NULL) + return EINVAL; + + DRM_COPY_TO_USER_IOCTL( (drm_map_t *)data, map, sizeof(map) ); + + return 0; +} + +int drm_getclient(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_client_t client; + drm_file_t *pt; + int idx; + int i = 0; + + DRM_COPY_FROM_USER_IOCTL( client, (drm_client_t *)data, sizeof(client) ); + + idx = client.idx; + DRM_LOCK(); + TAILQ_FOREACH(pt, &dev->files, link) { + if (i==idx) + { + client.auth = pt->authenticated; + client.pid = pt->pid; + client.uid = pt->uid; + client.magic = pt->magic; + client.iocs = pt->ioctl_count; + DRM_UNLOCK(); + + *(drm_client_t *)data = client; + return 0; + } + i++; + } + DRM_UNLOCK(); + + DRM_COPY_TO_USER_IOCTL( (drm_client_t *)data, client, sizeof(client) ); + + return 0; +} + +int drm_getstats(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_stats_t stats; + int i; + + memset(&stats, 0, sizeof(stats)); + + DRM_LOCK(); + + for (i = 0; i < dev->counters; i++) { + if (dev->types[i] == _DRM_STAT_LOCK) + stats.data[i].value + = (dev->lock.hw_lock + ? dev->lock.hw_lock->lock : 0); + else + stats.data[i].value = atomic_read(&dev->counts[i]); + stats.data[i].type = dev->types[i]; + } + + stats.count = dev->counters; + + DRM_UNLOCK(); + + DRM_COPY_TO_USER_IOCTL( (drm_stats_t *)data, stats, sizeof(stats) ); + + return 0; +} + +#define DRM_IF_MAJOR 1 +#define DRM_IF_MINOR 2 + +int drm_setversion(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_set_version_t sv; + drm_set_version_t retv; + int if_version; + + DRM_COPY_FROM_USER_IOCTL(sv, (drm_set_version_t *)data, sizeof(sv)); + + retv.drm_di_major = DRM_IF_MAJOR; + retv.drm_di_minor = DRM_IF_MINOR; + retv.drm_dd_major = dev->driver.major; + retv.drm_dd_minor = dev->driver.minor; + + DRM_COPY_TO_USER_IOCTL((drm_set_version_t *)data, retv, sizeof(sv)); + + if (sv.drm_di_major != -1) { + if (sv.drm_di_major != DRM_IF_MAJOR || + sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR) + return EINVAL; + if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_dd_minor); + dev->if_version = DRM_MAX(if_version, dev->if_version); + if (sv.drm_di_minor >= 1) { + /* + * Version 1.1 includes tying of DRM to specific device + */ + drm_set_busid(dev); + } + } + + if (sv.drm_dd_major != -1) { + if (sv.drm_dd_major != dev->driver.major || + sv.drm_dd_minor < 0 || sv.drm_dd_minor > dev->driver.minor) + return EINVAL; + } + return 0; +} + + +int drm_noop(DRM_IOCTL_ARGS) +{ + DRM_DEBUG("\n"); + return 0; +} diff --git a/sys/dev/drm/drm_irq.c b/sys/dev/drm/drm_irq.c new file mode 100644 index 00000000000..a5051c48a09 --- /dev/null +++ b/sys/dev/drm/drm_irq.c @@ -0,0 +1,314 @@ +/* drm_irq.c -- IRQ IOCTL and function support + * Created: Fri Oct 18 2003 by anholt@FreeBSD.org + */ +/*- + * Copyright 2003 Eric Anholt + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Eric Anholt <anholt@FreeBSD.org> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_irq.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" +#include "drm.h" + +int drm_irq_by_busid(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_irq_busid_t irq; + + DRM_COPY_FROM_USER_IOCTL(irq, (drm_irq_busid_t *)data, sizeof(irq)); + + if ((irq.busnum >> 8) != dev->pci_domain || + (irq.busnum & 0xff) != dev->pci_bus || + irq.devnum != dev->pci_slot || + irq.funcnum != dev->pci_func) + return EINVAL; + + irq.irq = dev->irq; + + DRM_DEBUG("%d:%d:%d => IRQ %d\n", + irq.busnum, irq.devnum, irq.funcnum, irq.irq); + + DRM_COPY_TO_USER_IOCTL( (drm_irq_busid_t *)data, irq, sizeof(irq) ); + + return 0; +} + +#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 +static irqreturn_t +drm_irq_handler_wrap(DRM_IRQ_ARGS) +{ + drm_device_t *dev = (drm_device_t *)arg; + + DRM_SPINLOCK(&dev->irq_lock); + dev->driver.irq_handler(arg); + DRM_SPINUNLOCK(&dev->irq_lock); +} +#endif + +#ifdef __NetBSD__ +static irqreturn_t +drm_irq_handler_wrap(DRM_IRQ_ARGS) +{ + int s; + irqreturn_t ret; + drm_device_t *dev = (drm_device_t *)arg; + + s = spldrm(); + DRM_SPINLOCK(&dev->irq_lock); + ret = dev->driver.irq_handler(arg); + DRM_SPINUNLOCK(&dev->irq_lock); + splx(s); + return ret; +} +#endif + +int drm_irq_install(drm_device_t *dev) +{ + int retcode; +#ifdef __NetBSD__ + pci_intr_handle_t ih; +#endif + + if (dev->irq == 0 || dev->dev_private == NULL) + return DRM_ERR(EINVAL); + + DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq ); + + DRM_LOCK(); + if (dev->irq_enabled) { + DRM_UNLOCK(); + return DRM_ERR(EBUSY); + } + dev->irq_enabled = 1; + + dev->context_flag = 0; + + DRM_SPININIT(dev->irq_lock, "DRM IRQ lock"); + + /* Before installing handler */ + dev->driver.irq_preinstall(dev); + DRM_UNLOCK(); + + /* Install handler */ +#ifdef __FreeBSD__ + dev->irqrid = 0; + dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, + &dev->irqrid, RF_SHAREABLE); + if (!dev->irqr) { + retcode = ENOENT; + goto err; + } +#if __FreeBSD_version < 500000 + retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY, + dev->irq_handler, dev, &dev->irqh); +#else + retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY | INTR_MPSAFE, + drm_irq_handler_wrap, dev, &dev->irqh); +#endif + if (retcode != 0) + goto err; +#elif defined(__NetBSD__) || defined(__OpenBSD__) + if (pci_intr_map(&dev->pa, &ih) != 0) { + retcode = ENOENT; + goto err; + } + dev->irqh = pci_intr_establish(&dev->pa.pa_pc, ih, IPL_TTY, + drm_irq_handler_wrap, dev); + if (!dev->irqh) { + retcode = ENOENT; + goto err; + } + printf("dri irq ok\n"); +#endif + + /* After installing handler */ + DRM_LOCK(); + dev->driver.irq_postinstall(dev); + DRM_UNLOCK(); + + return 0; +err: + DRM_LOCK(); + dev->irq_enabled = 0; +#ifdef ___FreeBSD__ + if (dev->irqrid != 0) { + bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, + dev->irqr); + dev->irqrid = 0; + } +#endif + DRM_SPINUNINIT(dev->irq_lock); + DRM_UNLOCK(); + return retcode; +} + +int drm_irq_uninstall(drm_device_t *dev) +{ +#ifdef __FreeBSD__ + int irqrid; +#endif + + if (!dev->irq_enabled) + return DRM_ERR(EINVAL); + + dev->irq_enabled = 0; +#ifdef __FreeBSD__ + irqrid = dev->irqrid; + dev->irqrid = 0; +#endif + + DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq ); + + dev->driver.irq_uninstall(dev); + +#ifdef __FreeBSD__ + DRM_UNLOCK(); + bus_teardown_intr(dev->device, dev->irqr, dev->irqh); + bus_release_resource(dev->device, SYS_RES_IRQ, irqrid, dev->irqr); + DRM_LOCK(); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + pci_intr_disestablish(&dev->pa.pa_pc, dev->irqh); +#endif + DRM_SPINUNINIT(dev->irq_lock); + + return 0; +} + +int drm_control(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_control_t ctl; + int err; + + DRM_COPY_FROM_USER_IOCTL( ctl, (drm_control_t *) data, sizeof(ctl) ); + + switch ( ctl.func ) { + case DRM_INST_HANDLER: + /* Handle drivers whose DRM used to require IRQ setup but the + * no longer does. + */ + if (!dev->driver.use_irq) + return 0; + if (dev->if_version < DRM_IF_VERSION(1, 2) && + ctl.irq != dev->irq) + return DRM_ERR(EINVAL); + return drm_irq_install(dev); + case DRM_UNINST_HANDLER: + if (!dev->driver.use_irq) + return 0; + DRM_LOCK(); + err = drm_irq_uninstall(dev); + DRM_UNLOCK(); + return err; + default: + return DRM_ERR(EINVAL); + } +} + +int drm_wait_vblank(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_wait_vblank_t vblwait; + struct timeval now; + int ret; + + if (!dev->irq_enabled) + return DRM_ERR(EINVAL); + + DRM_COPY_FROM_USER_IOCTL( vblwait, (drm_wait_vblank_t *)data, + sizeof(vblwait) ); + + if (vblwait.request.type & _DRM_VBLANK_RELATIVE) { + vblwait.request.sequence += atomic_read(&dev->vbl_received); + vblwait.request.type &= ~_DRM_VBLANK_RELATIVE; + } + + flags = vblwait.request.type & _DRM_VBLANK_FLAGS_MASK; + if (flags & _DRM_VBLANK_SIGNAL) { +#if 0 /* disabled */ + drm_vbl_sig_t *vbl_sig = malloc(sizeof(drm_vbl_sig_t), M_DRM, + M_NOWAIT | M_ZERO); + if (vbl_sig == NULL) + return ENOMEM; + + vbl_sig->sequence = vblwait.request.sequence; + vbl_sig->signo = vblwait.request.signal; + vbl_sig->pid = DRM_CURRENTPID; + + vblwait.reply.sequence = atomic_read(&dev->vbl_received); + + DRM_SPINLOCK(&dev->irq_lock); + TAILQ_INSERT_HEAD(&dev->vbl_sig_list, vbl_sig, link); + DRM_SPINUNLOCK(&dev->irq_lock); + ret = 0; +#endif + ret = EINVAL; + } else { + DRM_LOCK(); + ret = dev->driver.vblank_wait(dev, &vblwait.request.sequence); + DRM_UNLOCK(); + + microtime(&now); + vblwait.reply.tval_sec = now.tv_sec; + vblwait.reply.tval_usec = now.tv_usec; + } + + DRM_COPY_TO_USER_IOCTL( (drm_wait_vblank_t *)data, vblwait, + sizeof(vblwait) ); + + return ret; +} + +void drm_vbl_send_signals(drm_device_t *dev) +{ +} + +#if 0 /* disabled */ +void drm_vbl_send_signals( drm_device_t *dev ) +{ + drm_vbl_sig_t *vbl_sig; + unsigned int vbl_seq = atomic_read( &dev->vbl_received ); + struct proc *p; + + vbl_sig = TAILQ_FIRST(&dev->vbl_sig_list); + while (vbl_sig != NULL) { + drm_vbl_sig_t *next = TAILQ_NEXT(vbl_sig, link); + + if ( ( vbl_seq - vbl_sig->sequence ) <= (1<<23) ) { + p = pfind(vbl_sig->pid); + if (p != NULL) + psignal(p, vbl_sig->signo); + + TAILQ_REMOVE(&dev->vbl_sig_list, vbl_sig, link); + DRM_FREE(vbl_sig,sizeof(*vbl_sig)); + } + vbl_sig = next; + } +} +#endif diff --git a/sys/dev/drm/drm_linux_list.h b/sys/dev/drm/drm_linux_list.h new file mode 100644 index 00000000000..e0aef54276f --- /dev/null +++ b/sys/dev/drm/drm_linux_list.h @@ -0,0 +1,76 @@ +/* drm_linux_list.h -- linux list functions for the BSDs. + * Created: Mon Apr 7 14:30:16 1999 by anholt@FreeBSD.org + */ +/*- + * Copyright 2003 Eric Anholt + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Eric Anholt <anholt@FreeBSD.org> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_linux_list.h,v 1.4 2005/11/28 23:13:52 anholt Exp $"); +*/ + +struct list_head { + struct list_head *next, *prev; +}; + +/* Cheat, assume the list_head is at the start of the struct */ +#define list_entry(entry, type, member) (type *)(entry) + +static __inline__ void +INIT_LIST_HEAD(struct list_head *head) { + (head)->next = head; + (head)->prev = head; +} + +static __inline__ int +list_empty(struct list_head *head) { + return (head)->next == head; +} + +static __inline__ void +list_add_tail(struct list_head *entry, struct list_head *head) { + (entry)->prev = (head)->prev; + (entry)->next = head; + (head)->prev->next = entry; + (head)->prev = entry; +} + +static __inline__ void +list_del(struct list_head *entry) { + (entry)->next->prev = (entry)->prev; + (entry)->prev->next = (entry)->next; +} + +#define list_for_each(entry, head) \ + for (entry = (head)->next; entry != head; entry = (entry)->next) + +#define list_for_each_safe(entry, temp, head) \ + for (entry = (head)->next, temp = (entry)->next; \ + temp != head; \ + entry = temp, temp = temp->next) + diff --git a/sys/dev/drm/drm_lock.c b/sys/dev/drm/drm_lock.c new file mode 100644 index 00000000000..d49e2276a83 --- /dev/null +++ b/sys/dev/drm/drm_lock.c @@ -0,0 +1,182 @@ +/* lock.c -- IOCTLs for locking -*- linux-c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com + */ +/*- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_lock.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context) +{ + unsigned int old, new; + + do { + old = *lock; + if (old & _DRM_LOCK_HELD) new = old | _DRM_LOCK_CONT; + else new = context | _DRM_LOCK_HELD; + } while (!atomic_cmpset_int(lock, old, new)); + + if (_DRM_LOCKING_CONTEXT(old) == context) { + if (old & _DRM_LOCK_HELD) { + if (context != DRM_KERNEL_CONTEXT) { + DRM_ERROR("%d holds heavyweight lock\n", + context); + } + return 0; + } + } + if (new == (context | _DRM_LOCK_HELD)) { + /* Have lock */ + return 1; + } + return 0; +} + +/* This takes a lock forcibly and hands it to context. Should ONLY be used + inside *_unlock to give lock to kernel before calling *_dma_schedule. */ +int drm_lock_transfer(drm_device_t *dev, + __volatile__ unsigned int *lock, unsigned int context) +{ + unsigned int old, new; + + dev->lock.filp = NULL; + do { + old = *lock; + new = context | _DRM_LOCK_HELD; + } while (!atomic_cmpset_int(lock, old, new)); + + return 1; +} + +int drm_lock_free(drm_device_t *dev, + __volatile__ unsigned int *lock, unsigned int context) +{ + unsigned int old, new; + + dev->lock.filp = NULL; + do { + old = *lock; + new = 0; + } while (!atomic_cmpset_int(lock, old, new)); + + if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) { + DRM_ERROR("%d freed heavyweight lock held by %d\n", + context, _DRM_LOCKING_CONTEXT(old)); + return 1; + } + DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); + return 0; +} + +int drm_lock(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_lock_t lock; + int ret = 0; + + DRM_COPY_FROM_USER_IOCTL(lock, (drm_lock_t *)data, sizeof(lock)); + + if (lock.context == DRM_KERNEL_CONTEXT) { + DRM_ERROR("Process %d using kernel context %d\n", + DRM_CURRENTPID, lock.context); + return EINVAL; + } + + DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", + lock.context, DRM_CURRENTPID, dev->lock.hw_lock->lock, lock.flags); + + if (dev->driver.use_dma_queue && lock.context < 0) + return EINVAL; + + DRM_LOCK(); + for (;;) { + if (drm_lock_take(&dev->lock.hw_lock->lock, lock.context)) { + dev->lock.filp = (void *)(uintptr_t)DRM_CURRENTPID; + dev->lock.lock_time = jiffies; + atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); + break; /* Got lock */ + } + + /* Contention */ +#if defined(__FreeBSD__) && __FreeBSD_version > 500000 + ret = msleep((void *)&dev->lock.lock_queue, &dev->dev_lock, + PZERO | PCATCH, "drmlk2", 0); +#else + ret = ltsleep((void *)&dev->lock.lock_queue, PZERO | PCATCH, + "drmlk2", 0, &dev->dev_lock); +#endif + if (ret != 0) + break; + } + DRM_UNLOCK(); + DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock"); + + if (ret != 0) + return ret; + + /* XXX: Add signal blocking here */ + + if (dev->driver.dma_quiescent != NULL && + (lock.flags & _DRM_LOCK_QUIESCENT)) + dev->driver.dma_quiescent(dev); + + return 0; +} + +int drm_unlock(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_lock_t lock; + + DRM_COPY_FROM_USER_IOCTL(lock, (drm_lock_t *)data, sizeof(lock)); + + if (lock.context == DRM_KERNEL_CONTEXT) { + DRM_ERROR("Process %d using kernel context %d\n", + DRM_CURRENTPID, lock.context); + return EINVAL; + } + + atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); + + DRM_LOCK(); + drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT); + + if (drm_lock_free(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) { + DRM_ERROR("\n"); + } + DRM_UNLOCK(); + + return 0; +} diff --git a/sys/dev/drm/drm_memory.c b/sys/dev/drm/drm_memory.c new file mode 100644 index 00000000000..5d2d6ba7f89 --- /dev/null +++ b/sys/dev/drm/drm_memory.c @@ -0,0 +1,202 @@ +/* drm_memory.h -- Memory management wrappers for DRM -*- linux-c -*- + * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com + */ +/*- + *Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_memory.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures"); + +void drm_mem_init(void) +{ +#if defined(__NetBSD__) || defined(__OpenBSD__) +/* + malloc_type_attach(M_DRM); +*/ +#endif +} + +void drm_mem_uninit(void) +{ +} + +void *drm_alloc(size_t size, int area) +{ + return malloc(size, M_DRM, M_NOWAIT); +} + +void *drm_calloc(size_t nmemb, size_t size, int area) +{ + return malloc(size * nmemb, M_DRM, M_NOWAIT | M_ZERO); +} + +void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area) +{ + void *pt; + + pt = malloc(size, M_DRM, M_NOWAIT); + if (pt == NULL) + return NULL; + if (oldpt && oldsize) { + memcpy(pt, oldpt, oldsize); + free(oldpt, M_DRM); + } + return pt; +} + +void drm_free(void *pt, size_t size, int area) +{ + free(pt, M_DRM); +} + +void *drm_ioremap(drm_device_t *dev, drm_local_map_t *map) +{ +#ifdef __FreeBSD__ + return pmap_mapdev(map->offset, map->size); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + int i, reg, reason; + for(i = 0; i<DRM_MAX_PCI_RESOURCE; i++) { + reg = PCI_MAPREG_START + i*4; + if (dev->pci_map_data[i].maptype == PCI_MAPREG_TYPE_MEM && + dev->pci_map_data[i].base == map->offset && + dev->pci_map_data[i].size >= map->size) + { + map->bst = dev->pa.pa_memt; + map->cnt = &(dev->pci_map_data[i].mapped); + map->mapsize = dev->pci_map_data[i].size; + dev->pci_map_data[i].mapped++; + if (dev->pci_map_data[i].mapped > 1) + { + map->bsh = dev->pci_map_data[i].bsh; + return dev->pci_map_data[i].vaddr; + } + if ((reason = bus_space_map(map->bst, map->offset, + dev->pci_map_data[i].size, + dev->pci_map_data[i].flags, &map->bsh))) + { + dev->pci_map_data[i].mapped--; + DRM_DEBUG("ioremap: failed to map (%d)\n", + reason); + return NULL; + } + dev->pci_map_data[i].bsh = map->bsh; + dev->pci_map_data[i].vaddr = + bus_space_vaddr(map->bst, map->bsh); + DRM_DEBUG("ioremap mem found: %p\n", + dev->pci_map_data[i].vaddr); + return dev->pci_map_data[i].vaddr; + } + } + DRM_DEBUG("drm_ioremap failed: offset=%lx size=%lu\n", + map->offset, map->size); + return NULL; +#endif +} + +void drm_ioremapfree(drm_local_map_t *map) +{ +#ifdef __FreeBSD__ + pmap_unmapdev((vm_offset_t) map->handle, map->size); +#elif defined(__NetBSD__) || defined(__OpenBSD__) + if (map->cnt == NULL) { + DRM_INFO("drm_ioremapfree called for unknown map\n"); + return; + } + if (*(map->cnt) > 0) { + (*(map->cnt))--; + if(*(map->cnt) == 0) + bus_space_unmap(map->bst, map->bsh, map->mapsize); + } +#endif +} + +#ifdef __FreeBSD__ +int +drm_mtrr_add(unsigned long offset, size_t size, int flags) +{ + int act; + struct mem_range_desc mrdesc; + + mrdesc.mr_base = offset; + mrdesc.mr_len = size; + mrdesc.mr_flags = flags; + act = MEMRANGE_SET_UPDATE; + strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner)); + return mem_range_attr_set(&mrdesc, &act); +} + +int +drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags) +{ + int act; + struct mem_range_desc mrdesc; + + mrdesc.mr_base = offset; + mrdesc.mr_len = size; + mrdesc.mr_flags = flags; + act = MEMRANGE_SET_REMOVE; + strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner)); + return mem_range_attr_set(&mrdesc, &act); +} +#elif defined(__NetBSD__) || defined(__OpenBSD__) +int +drm_mtrr_add(unsigned long offset, size_t size, int flags) +{ + struct mtrr mtrrmap; + int one = 1; + + DRM_DEBUG("offset=%lx size=%ld\n", (long)offset, (long)size); + mtrrmap.base = offset; + mtrrmap.len = size; + mtrrmap.type = flags; + mtrrmap.flags = MTRR_VALID; + return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL); +} + +int +drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags) +{ + struct mtrr mtrrmap; + int one = 1; + + DRM_DEBUG("offset=%lx size=%ld\n", (long)offset, (long)size); + mtrrmap.base = offset; + mtrrmap.len = size; + mtrrmap.type = flags; + mtrrmap.flags = 0; + return mtrr_set(&mtrrmap, &one, NULL, MTRR_GETSET_KERNEL); +} +#endif diff --git a/sys/dev/drm/drm_pci.c b/sys/dev/drm/drm_pci.c new file mode 100644 index 00000000000..aba3a43859d --- /dev/null +++ b/sys/dev/drm/drm_pci.c @@ -0,0 +1,155 @@ +/** + * \file drm_pci.h + * \brief PCI consistent, DMA-accessible memory functions. + * + * \author Eric Anholt <anholt@FreeBSD.org> + */ + +/*- + * Copyright 2003 Eric Anholt. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_pci.c,v 1.2 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#include "drmP.h" + +/**********************************************************************/ +/** \name PCI memory */ +/*@{*/ + +#if defined(__FreeBSD__) +static void +drm_pci_busdma_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error) +{ + drm_dma_handle_t *dmah = arg; + + if (error != 0) + return; + + KASSERT(nsegs == 1, ("drm_pci_busdma_callback: bad dma segment count")); + dmah->busaddr = segs[0].ds_addr; +} +#endif + +/** + * \brief Allocate a physically contiguous DMA-accessible consistent + * memory block. + */ +drm_dma_handle_t * +drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, dma_addr_t maxaddr) +{ + drm_dma_handle_t *dmah; + int ret; +#ifdef __NetBSD__ + int nsegs; +#endif + + /* Need power-of-two alignment, so fail the allocation if it isn't. */ + if ((align & (align - 1)) != 0) { + DRM_ERROR("drm_pci_alloc with non-power-of-two alignment %d\n", + (int)align); + return NULL; + } + + dmah = malloc(sizeof(drm_dma_handle_t), M_DRM, M_ZERO | M_NOWAIT); + if (dmah == NULL) + return NULL; + +#ifdef __FreeBSD__ + ret = bus_dma_tag_create(NULL, align, 0, /* tag, align, boundary */ + maxaddr, BUS_SPACE_MAXADDR, /* lowaddr, highaddr */ + NULL, NULL, /* filtfunc, filtfuncargs */ + size, 1, size, /* maxsize, nsegs, maxsegsize */ + BUS_DMA_ALLOCNOW, NULL, NULL, /* flags, lockfunc, lockfuncargs */ + &dmah->tag); + if (ret != 0) { + free(dmah, M_DRM); + return NULL; + } + + ret = bus_dmamem_alloc(dmah->tag, &dmah->vaddr, BUS_DMA_NOWAIT, + &dmah->map); + if (ret != 0) { + bus_dma_tag_destroy(dmah->tag); + free(dmah, M_DRM); + return NULL; + } + + ret = bus_dmamap_load(dmah->tag, dmah->map, dmah->vaddr, size, + drm_pci_busdma_callback, dmah, 0); + if (ret != 0) { + bus_dmamem_free(dmah->tag, dmah->vaddr, dmah->map); + bus_dma_tag_destroy(dmah->tag); + free(dmah, M_DRM); + return NULL; + } +#elif defined(__NetBSD__) + ret = bus_dmamem_alloc(dev->pa.pa_dmat, size, align, PAGE_SIZE, + &dmah->seg, 1, &nsegs, BUS_DMA_NOWAIT); + if (ret != 0) { + free(dmah, M_DRM); + return NULL; + } + if(nsegs != 1) { + bus_dmamem_free(dev->pa.pa_dmat, &dmah->seg, nsegs); + free(dmah, M_DRM); + return NULL; + } + + ret = bus_dmamem_map(dev->pa.pa_dmat, &dmah->seg, 1, size, &dmah->addr, + BUS_DMA_NOWAIT); + if (ret != 0) { + bus_dmamem_free(dev->pa.pa_dmat, &dmah->seg, 1); + free(dmah, M_DRM); + return NULL; + } + + dmah->busaddr = dmah->seg.ds_addr; + dmah->vaddr = dmah->addr; +#endif + + return dmah; +} + +/** + * \brief Free a DMA-accessible consistent memory block. + */ +void +drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah) +{ + if (dmah == NULL) + return; + +#if defined(__FreeBSD__) + bus_dmamem_free(dmah->tag, dmah->vaddr, dmah->map); + bus_dma_tag_destroy(dmah->tag); +#elif defined(__NetBSD__) + bus_dmamem_free(dev->pa.pa_dmat, &dmah->seg, 1); +#endif + + free(dmah, M_DRM); +} + +/*@}*/ diff --git a/sys/dev/drm/drm_sarea.h b/sys/dev/drm/drm_sarea.h new file mode 100644 index 00000000000..a11ec0196b7 --- /dev/null +++ b/sys/dev/drm/drm_sarea.h @@ -0,0 +1,83 @@ +/** + * \file drm_sarea.h + * \brief SAREA definitions + * + * \author Michel D�zer <michel@daenzer.net> + */ + +/*- + * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_sarea.h,v 1.6 2005/11/28 23:13:52 anholt Exp $"); +*/ + +#ifndef _DRM_SAREA_H_ +#define _DRM_SAREA_H_ + +#include "drm.h" + +/* SAREA area needs to be at least a page */ +#if defined(__alpha__) +#define SAREA_MAX 0x2000 +#elif defined(__ia64__) +#define SAREA_MAX 0x10000 /* 64kB */ +#else +/* Intel 830M driver needs at least 8k SAREA */ +#define SAREA_MAX 0x2000 +#endif + +/** Maximum number of drawables in the SAREA */ +#define SAREA_MAX_DRAWABLES 256 + +#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 + +/** SAREA drawable */ +typedef struct drm_sarea_drawable { + unsigned int stamp; + unsigned int flags; +} drm_sarea_drawable_t; + +/** SAREA frame */ +typedef struct drm_sarea_frame { + unsigned int x; + unsigned int y; + unsigned int width; + unsigned int height; + unsigned int fullscreen; +} drm_sarea_frame_t; + +/** SAREA */ +typedef struct drm_sarea { + /** first thing is always the DRM locking structure */ + drm_hw_lock_t lock; + /** \todo Use readers/writer lock for drm_sarea::drawable_lock */ + drm_hw_lock_t drawable_lock; + drm_sarea_drawable_t drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */ + drm_sarea_frame_t frame; /**< frame */ + drm_context_t dummy_context; +} drm_sarea_t; + +#endif /* _DRM_SAREA_H_ */ diff --git a/sys/dev/drm/drm_scatter.c b/sys/dev/drm/drm_scatter.c new file mode 100644 index 00000000000..80343b11f1e --- /dev/null +++ b/sys/dev/drm/drm_scatter.c @@ -0,0 +1,134 @@ +/* drm_scatter.h -- IOCTLs to manage scatter/gather memory -*- linux-c -*- + * Created: Mon Dec 18 23:20:54 2000 by gareth@valinux.com */ +/*- + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Gareth Hughes <gareth@valinux.com> + * Eric Anholt <anholt@FreeBSD.org> + * + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_scatter.c,v 1.3 2006/05/17 06:29:36 anholt Exp $"); +*/ + +#include "drmP.h" + +#define DEBUG_SCATTER 0 + +void drm_sg_cleanup(drm_sg_mem_t *entry) +{ + free((void *)entry->handle, M_DRM); + free(entry->busaddr, M_DRM); + free(entry, M_DRM); +} + +int drm_sg_alloc(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_scatter_gather_t request; + drm_sg_mem_t *entry; + unsigned long pages; + int i; + + DRM_DEBUG( "%s\n", __FUNCTION__ ); + + if ( dev->sg ) + return EINVAL; + + DRM_COPY_FROM_USER_IOCTL(request, (drm_scatter_gather_t *)data, + sizeof(request) ); + + entry = malloc(sizeof(*entry), M_DRM, M_WAITOK | M_ZERO); + if ( !entry ) + return ENOMEM; + + pages = round_page(request.size) / PAGE_SIZE; + DRM_DEBUG( "sg size=%ld pages=%ld\n", request.size, pages ); + + entry->pages = pages; + + entry->busaddr = malloc(pages * sizeof(*entry->busaddr), M_DRM, + M_WAITOK | M_ZERO); + if ( !entry->busaddr ) { + drm_sg_cleanup(entry); + return ENOMEM; + } + + entry->handle = (long)malloc(pages << PAGE_SHIFT, M_DRM, + M_WAITOK | M_ZERO); + if (entry->handle == 0) { + drm_sg_cleanup(entry); + return ENOMEM; + } + + for (i = 0; i < pages; i++) { + entry->busaddr[i] = vtophys(entry->handle + i * PAGE_SIZE); + } + + DRM_DEBUG( "sg alloc handle = %08lx\n", entry->handle ); + + entry->virtual = (void *)entry->handle; + request.handle = entry->handle; + + DRM_COPY_TO_USER_IOCTL( (drm_scatter_gather_t *)data, + request, + sizeof(request) ); + + DRM_LOCK(); + if (dev->sg) { + DRM_UNLOCK(); + drm_sg_cleanup(entry); + return EINVAL; + } + dev->sg = entry; + DRM_UNLOCK(); + + return 0; +} + +int drm_sg_free(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_scatter_gather_t request; + drm_sg_mem_t *entry; + + DRM_COPY_FROM_USER_IOCTL( request, (drm_scatter_gather_t *)data, + sizeof(request) ); + + DRM_LOCK(); + entry = dev->sg; + dev->sg = NULL; + DRM_UNLOCK(); + + if ( !entry || entry->handle != request.handle ) + return EINVAL; + + DRM_DEBUG( "sg free virtual = 0x%lx\n", entry->handle ); + + drm_sg_cleanup(entry); + + return 0; +} diff --git a/sys/dev/drm/drm_sysctl.c b/sys/dev/drm/drm_sysctl.c new file mode 100644 index 00000000000..67089a14d74 --- /dev/null +++ b/sys/dev/drm/drm_sysctl.c @@ -0,0 +1,409 @@ +/*- + * Copyright 2003 Eric Anholt + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_sysctl.c,v 1.2 2005/11/28 23:13:53 anholt Exp $"); +*/ + +#include "drmP.h" +#include "drm.h" + +#include <sys/sysctl.h> + +static int drm_name_info DRM_SYSCTL_HANDLER_ARGS; +static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; +static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; +static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; + +struct drm_sysctl_list { + const char *name; + int (*f) DRM_SYSCTL_HANDLER_ARGS; +} drm_sysctl_list[] = { + {"name", drm_name_info}, + {"vm", drm_vm_info}, + {"clients", drm_clients_info}, + {"bufs", drm_bufs_info}, +}; +#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) + +struct drm_sysctl_info { +#ifdef __FreeBSD__ + struct sysctl_ctx_list ctx; +#elif defined __NetBSD__ + const struct sysctlnode *dri, *dri_card, *dri_debug; + const struct sysctlnode *dri_rest[DRM_SYSCTL_ENTRIES]; +#endif + char name[7]; +}; + +int drm_sysctl_init(drm_device_t *dev) +{ + struct drm_sysctl_info *info; +#ifdef __FreeBSD__ + struct sysctl_oid *oid; + struct sysctl_oid *top, *drioid; +#endif + int i; + + info = malloc(sizeof *info, M_DRM, M_WAITOK | M_ZERO); + if ( !info ) + return 1; + dev->sysctl = info; + +#ifdef __FreeBSD__ + /* Add the sysctl node for DRI if it doesn't already exist */ + drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics"); + if (!drioid) + return 1; + + /* Find the next free slot under hw.dri */ + i = 0; + SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { + if (i <= oid->oid_arg2) + i = oid->oid_arg2 + 1; + } + if (i>9) + return 1; + + /* Add the hw.dri.x for our device */ + info->name[0] = '0' + i; + info->name[1] = 0; + top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); + if (!top) + return 1; + + for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { + oid = SYSCTL_ADD_OID(&info->ctx, + SYSCTL_CHILDREN(top), + OID_AUTO, + drm_sysctl_list[i].name, + CTLTYPE_INT | CTLFLAG_RD, + dev, + 0, + drm_sysctl_list[i].f, + "A", + NULL); + if (!oid) + return 1; + } + SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug", + CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag), + "Enable debugging output"); +#elif defined(__NetBSD__) + sysctl_createv(NULL, 0, NULL, &info->dri, + CTLFLAG_READWRITE, CTLTYPE_NODE, + "dri", SYSCTL_DESCR("DRI Graphics"), NULL, 0, NULL, 0, + CTL_HW, CTL_CREATE); + snprintf(info->name, 7, "card%d", dev->unit); + sysctl_createv(NULL, 0, NULL, &info->dri_card, + CTLFLAG_READWRITE, CTLTYPE_NODE, + info->name, NULL, NULL, 0, NULL, 0, + CTL_HW, info->dri->sysctl_num, CTL_CREATE); + for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) + sysctl_createv(NULL, 0, NULL, &(info->dri_rest[i]), + CTLFLAG_READONLY, CTLTYPE_STRING, + drm_sysctl_list[i].name, NULL, + drm_sysctl_list[i].f, 0, dev, + sizeof(drm_device_t*), + CTL_HW, + info->dri->sysctl_num, + info->dri_card->sysctl_num, CTL_CREATE); + sysctl_createv(NULL, 0, NULL, &info->dri_debug, + CTLFLAG_READWRITE, CTLTYPE_INT, + "debug", SYSCTL_DESCR("Enable debugging output"), + NULL, 0, + &drm_debug_flag, sizeof(drm_debug_flag), + CTL_HW, info->dri->sysctl_num, CTL_CREATE); +#endif + + return 0; +} + +int drm_sysctl_cleanup(drm_device_t *dev) +{ +#ifdef __FreeBSD__ + int error; + error = sysctl_ctx_free( &dev->sysctl->ctx ); +#elif defined(__NetBSD__) + int i, error = 0; + + sysctl_destroyv(NULL, CTL_HW, dev->sysctl->dri->sysctl_num, + dev->sysctl->dri_debug->sysctl_num, + CTL_DESTROY); + for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) + sysctl_destroyv(NULL, CTL_HW, dev->sysctl->dri->sysctl_num, + dev->sysctl->dri_card->sysctl_num, + dev->sysctl->dri_rest[i]->sysctl_num, + CTL_DESTROY); + sysctl_destroyv(NULL, CTL_HW, dev->sysctl->dri->sysctl_num, + dev->sysctl->dri_card->sysctl_num, + CTL_DESTROY); + sysctl_destroyv(NULL, CTL_HW, dev->sysctl->dri->sysctl_num, CTL_DESTROY); +#endif + + free(dev->sysctl, M_DRM); + dev->sysctl = NULL; + + return error; +} + +#ifdef __NetBSD__ +#define SYSCTL_OUT(x, y, z) \ + (len+=z,(len<*oldlenp)?(strcat((char*)oldp, y),0):EOVERFLOW) +#endif + +#define DRM_SYSCTL_PRINT(fmt, arg...) \ +do { \ + snprintf(buf, sizeof(buf), fmt, ##arg); \ + retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ + if (retcode) \ + goto done; \ +} while (0) + +static int drm_name_info DRM_SYSCTL_HANDLER_ARGS +{ +#ifdef __FreeBSD__ + drm_device_t *dev = arg1; +#elif defined(__NetBSD__) + int len = 0; + drm_device_t *dev = rnode->sysctl_data; +#endif + char buf[128]; + int retcode; + int hasunique = 0; + +#ifdef __NetBSD__ + if(oldp == NULL) return EINVAL; + *((char*)oldp) = '\0'; +#endif + +#ifdef __FreeBSD__ + DRM_SYSCTL_PRINT("%s 0x%x", dev->driver.name, dev2udev(dev->devnode)); +#elif defined(__NetBSD__) + DRM_SYSCTL_PRINT("%s", dev->driver.name); +#endif + + DRM_LOCK(); + if (dev->unique) { + snprintf(buf, sizeof(buf), " %s", dev->unique); + hasunique = 1; + } + DRM_UNLOCK(); + + if (hasunique) + SYSCTL_OUT(req, buf, strlen(buf)); + + SYSCTL_OUT(req, "", 1); + +done: + return retcode; +} + +static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS +{ +#ifdef __FreeBSD__ + drm_device_t *dev = arg1; +#elif defined(__NetBSD__) + int len = 0; + drm_device_t *dev = rnode->sysctl_data; +#endif + drm_local_map_t *map, *tempmaps; + const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" }; + const char *type, *yesno; + int i, mapcount; + char buf[128]; + int retcode; + +#ifdef __NetBSD__ + if(oldp == NULL) return EINVAL; + *((char*)oldp) = '\0'; +#endif + + /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a + * temporary copy of all the map entries and then SYSCTL_OUT that. + */ + DRM_LOCK(); + + mapcount = 0; + TAILQ_FOREACH(map, &dev->maplist, link) + mapcount++; + + tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, M_DRM, M_NOWAIT); + if (tempmaps == NULL) { + DRM_UNLOCK(); + return ENOMEM; + } + + i = 0; + TAILQ_FOREACH(map, &dev->maplist, link) + tempmaps[i++] = *map; + + DRM_UNLOCK(); + + DRM_SYSCTL_PRINT("\nslot offset size type flags " + "address mtrr\n"); + + for (i = 0; i < mapcount; i++) { + map = &tempmaps[i]; + + if (/* map->type < 0 || */ map->type > 4) + type = "??"; + else + type = types[map->type]; + + if (!map->mtrr) + yesno = "no"; + else + yesno = "yes"; + + DRM_SYSCTL_PRINT( + "%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx %s\n", i, + map->offset, map->size, type, map->flags, + (unsigned long)map->handle, yesno); + } + SYSCTL_OUT(req, "", 1); + +done: + free(tempmaps, M_DRM); + return retcode; +} + +static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS +{ +#ifdef __FreeBSD__ + drm_device_t *dev = arg1; +#elif defined(__NetBSD__) + int len = 0; + drm_device_t *dev = rnode->sysctl_data; +#endif + drm_device_dma_t *dma = dev->dma; + drm_device_dma_t tempdma; + int *templists; + int i; + char buf[128]; + int retcode; + +#ifdef __NetBSD__ + if(oldp == NULL) return EINVAL; + *((char*)oldp) = '\0'; +#endif + + /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary + * copy of the whole structure and the relevant data from buflist. + */ + DRM_LOCK(); + if (dma == NULL) { + DRM_UNLOCK(); + return 0; + } + DRM_SPINLOCK(&dev->dma_lock); + tempdma = *dma; + templists = malloc(sizeof(int) * dma->buf_count, M_DRM, M_NOWAIT); + for (i = 0; i < dma->buf_count; i++) + templists[i] = dma->buflist[i]->list; + dma = &tempdma; + DRM_SPINUNLOCK(&dev->dma_lock); + DRM_UNLOCK(); + + DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); + for (i = 0; i <= DRM_MAX_ORDER; i++) { + if (dma->bufs[i].buf_count) + DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", + i, + dma->bufs[i].buf_size, + dma->bufs[i].buf_count, + atomic_read(&dma->bufs[i] + .freelist.count), + dma->bufs[i].seg_count, + dma->bufs[i].seg_count + *(1 << dma->bufs[i].page_order), + (dma->bufs[i].seg_count + * (1 << dma->bufs[i].page_order)) + * PAGE_SIZE / 1024); + } + DRM_SYSCTL_PRINT("\n"); + for (i = 0; i < dma->buf_count; i++) { + if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); + DRM_SYSCTL_PRINT(" %d", templists[i]); + } + DRM_SYSCTL_PRINT("\n"); + + SYSCTL_OUT(req, "", 1); +done: + free(templists, M_DRM); + return retcode; +} + +static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS +{ +#ifdef __FreeBSD__ + drm_device_t *dev = arg1; +#elif defined(__NetBSD__) + int len = 0; + drm_device_t *dev = rnode->sysctl_data; +#endif + drm_file_t *priv, *tempprivs; + char buf[128]; + int retcode; + int privcount, i; + +#ifdef __NetBSD__ + if(oldp == NULL) return EINVAL; + *((char*)oldp) = '\0'; +#endif + + DRM_LOCK(); + + privcount = 0; + TAILQ_FOREACH(priv, &dev->files, link) + privcount++; + + tempprivs = malloc(sizeof(drm_file_t) * privcount, M_DRM, M_NOWAIT); + if (tempprivs == NULL) { + DRM_UNLOCK(); + return ENOMEM; + } + i = 0; + TAILQ_FOREACH(priv, &dev->files, link) + tempprivs[i++] = *priv; + + DRM_UNLOCK(); + + DRM_SYSCTL_PRINT("\na dev pid uid magic ioctls\n"); + for (i = 0; i < privcount; i++) { + priv = &tempprivs[i]; + DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n", + priv->authenticated ? 'y' : 'n', + priv->minor, + priv->pid, + priv->uid, + priv->magic, + priv->ioctl_count); + } + + SYSCTL_OUT(req, "", 1); +done: + free(tempprivs, M_DRM); + return retcode; +} diff --git a/sys/dev/drm/drm_vm.c b/sys/dev/drm/drm_vm.c new file mode 100644 index 00000000000..556a196b601 --- /dev/null +++ b/sys/dev/drm/drm_vm.c @@ -0,0 +1,140 @@ +/*- + * Copyright 2003 Eric Anholt + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <sys/cdefs.h> +/* +__FBSDID("$FreeBSD: src/sys/dev/drm/drm_vm.c,v 1.2 2005/11/28 23:13:53 anholt Exp $"); +*/ + +#include "drmP.h" +#include "drm.h" + +#if defined(__FreeBSD__) && __FreeBSD_version >= 500102 +int drm_mmap(struct cdev *kdev, vm_offset_t offset, vm_paddr_t *paddr, + int prot) +#elif defined(__FreeBSD__) +int drm_mmap(dev_t kdev, vm_offset_t offset, int prot) +#elif defined(__NetBSD__) || defined(__OpenBSD__) +paddr_t drm_mmap(dev_t kdev, off_t offset, int prot) +#endif +{ + DRM_DEVICE; + drm_local_map_t *map; + drm_file_t *priv; + drm_map_type_t type; +#ifdef __FreeBSD__ + vm_paddr_t phys; +#else + paddr_t phys; +#endif + + DRM_LOCK(); + priv = drm_find_file_by_proc(dev, DRM_CURPROC); + DRM_UNLOCK(); + if (priv == NULL) { + DRM_ERROR("can't find authenticator\n"); + return EINVAL; + } + + if (!priv->authenticated) + return DRM_ERR(EACCES); + + if (dev->dma && offset >= 0 && offset < ptoa(dev->dma->page_count)) { + drm_device_dma_t *dma = dev->dma; + + DRM_SPINLOCK(&dev->dma_lock); + + if (dma->pagelist != NULL) { + unsigned long page = offset >> PAGE_SHIFT; + unsigned long pphys = dma->pagelist[page]; + +#if defined(__FreeBSD__) && __FreeBSD_version >= 500102 + *paddr = phys; + DRM_SPINUNLOCK(&dev->dma_lock); + return 0; +#else + return atop(pphys); +#endif + } else { + DRM_SPINUNLOCK(&dev->dma_lock); + return -1; + } + DRM_SPINUNLOCK(&dev->dma_lock); + } + + /* A sequential search of a linked list is + fine here because: 1) there will only be + about 5-10 entries in the list and, 2) a + DRI client only has to do this mapping + once, so it doesn't have to be optimized + for performance, even if the list was a + bit longer. */ + DRM_LOCK(); + TAILQ_FOREACH(map, &dev->maplist, link) { + if (offset >= map->offset && offset < map->offset + map->size) + break; + } + + if (map == NULL) { + DRM_UNLOCK(); + DRM_DEBUG("can't find map\n"); + return -1; + } + if (((map->flags&_DRM_RESTRICTED) && !DRM_SUSER(DRM_CURPROC))) { + DRM_UNLOCK(); + DRM_DEBUG("restricted map\n"); + return -1; + } + type = map->type; + DRM_UNLOCK(); + + switch (type) { + case _DRM_FRAME_BUFFER: + case _DRM_REGISTERS: + case _DRM_AGP: + phys = offset; + break; + case _DRM_CONSISTENT: +#ifdef __FreeBSD__ + phys = vtophys((char *)map->handle + (offset - map->offset)); +#else + phys = vtophys((paddr_t)map->handle + (offset - map->offset)); +#endif + break; + case _DRM_SCATTER_GATHER: + case _DRM_SHM: + phys = vtophys(offset); + break; + default: + DRM_ERROR("bad map type %d\n", type); + return -1; /* This should never happen. */ + } + +#if defined(__FreeBSD__) && __FreeBSD_version >= 500102 + *paddr = phys; + return 0; +#else + return atop(phys); +#endif +} + diff --git a/sys/dev/drm/files.drm b/sys/dev/drm/files.drm new file mode 100644 index 00000000000..f569f4251d5 --- /dev/null +++ b/sys/dev/drm/files.drm @@ -0,0 +1,21 @@ +# $NetBSD: files.drm,v 1.1 2007/03/20 18:05:31 drochner Exp $ + +# direct rendering modules +define drmbase +defflag opt_drm.h DRM_DEBUG +file dev/drm/drm_agpsupport.c drmbase +file dev/drm/drm_auth.c drmbase +file dev/drm/drm_bufs.c drmbase +file dev/drm/drm_context.c drmbase +file dev/drm/drm_dma.c drmbase +file dev/drm/drm_drawable.c drmbase +file dev/drm/drm_drv.c drmbase +file dev/drm/drm_fops.c drmbase +file dev/drm/drm_ioctl.c drmbase +file dev/drm/drm_irq.c drmbase +file dev/drm/drm_lock.c drmbase +file dev/drm/drm_memory.c drmbase +file dev/drm/drm_pci.c drmbase +file dev/drm/drm_scatter.c drmbase +file dev/drm/drm_sysctl.c drmbase +file dev/drm/drm_vm.c drmbase |
