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authordrochner <drochner@NetBSD.org>2007-03-20 18:05:25 +0000
committerdrochner <drochner@NetBSD.org>2007-03-20 18:05:25 +0000
commit2d9e04fc35ca8ddfed6238ce480db06ec7d7d76e (patch)
treeeba0e8e954885cfb2067de846ecfd99f432a0b9c /sys/dev/drm/drm_memory.c
parentf8ef9d143184e5e22d51bde02aecb408dc9e3925 (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/drm_memory.c')
-rw-r--r--sys/dev/drm/drm_memory.c202
1 files changed, 202 insertions, 0 deletions
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