mirror-linux/drivers/gpu/drm/amd
Alex Deucher 5a11a27677 drm/amdgpu/hdp7: use memcfg register to post the write for HDP flush
Reading back the remapped HDP flush register seems to cause
problems on some platforms. All we need is a read, so read back
the memcfg register.

Fixes: 689275140c ("drm/amdgpu/hdp7.0: do a posting read when flushing HDP")
Reported-by: Alexey Klimov <alexey.klimov@linaro.org>
Link: https://lists.freedesktop.org/archives/amd-gfx/2025-April/123150.html
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4119
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3908
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit dbc064adfc)
Cc: stable@vger.kernel.org
2025-05-08 11:48:12 -04:00
..
acp
amdgpu drm/amdgpu/hdp7: use memcfg register to post the write for HDP flush 2025-05-08 11:48:12 -04:00
amdkfd drm/amdkfd: limit sdma queue reset caps flagging for gfx9 2025-04-07 15:18:18 -04:00
amdxcp
display drm/amd/display: Fix wrong handling for AUX_DEFER case 2025-05-07 18:23:09 -04:00
include drm/amdgpu/pm: add workload profile pause helper 2025-04-09 10:53:11 -04:00
pm drm/amd/pm/smu11: Prevent division by zero 2025-04-09 10:53:11 -04:00