linux/drivers/gpu
Tianci Yin b1bcdd409d drm/amd/display: Disable migration to ensure consistency of per-CPU variable
[why]
Since the variable fpu_recursion_depth is per-CPU type, it has one copy
on each CPU, thread migration causes data consistency issue, then the
call trace shows up. And preemption disabling can't prevent migration.

[how]
Disable migration to ensure consistency of fpu_recursion_depth.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Tianci Yin <tianci.yin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-04-26 22:36:53 -04:00
..
drm drm/amd/display: Disable migration to ensure consistency of per-CPU variable 2023-04-26 22:36:53 -04:00
host1x drm/tegra: Changes for v6.4-rc1 2023-04-06 15:02:17 +02:00
ipu-v3 drm: Drop ARCH_MULTIPLATFORM from dependencies 2023-03-14 12:57:22 +01:00
trace
vga
Makefile