Files
linux/drivers
Alex Deucher f690e39747 drm/amdgpu/hdp4: 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: c9b8dcabb5 ("drm/amdgpu/hdp4.0: 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 5c937b4a60)
Cc: stable@vger.kernel.org
2025-05-07 18:24:56 -04:00
..
2025-04-22 16:06:05 +09:00
2025-04-11 17:32:38 -07:00
2025-04-08 19:30:58 +02:00
2025-04-18 10:05:49 -04:00