diff options
| author | thorpej <thorpej@NetBSD.org> | 2021-07-24 15:52:16 +0000 |
|---|---|---|
| committer | thorpej <thorpej@NetBSD.org> | 2021-07-24 15:52:16 +0000 |
| commit | e7fc6d4d83944ff6298155ffff42506613048cd4 (patch) | |
| tree | f922c4c790938e79ca98c21a3ad4b8816c1a4830 /sys/dev/microcode/tools/array2bin.c | |
| parent | e6e1ba2f350ded834f6aa4c0bd5a7b75fb9ac967 (diff) | |
Don't blindly establish our interrupt handler as IST_LEVEL. If the INTDEF
register has the INTHIGH bit set, the controller is going to keep the
line low when *not* asserting an interrupt, and since EISA level-tiggered
interrupts are active-low, this would result in a forever-interrupt-storm.
So, if INTHIGH is set in INTDEF, establish our interrupt handler as
IST_EDGE, which will program the EISA PIC to detect the interrupt on
the rising edge of the IRQ line.
Diffstat (limited to 'sys/dev/microcode/tools/array2bin.c')
0 files changed, 0 insertions, 0 deletions
