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| author | Alex Deucher <alexander.deucher@amd.com> | 2025-04-30 12:50:02 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-05-08 11:48:12 -0400 |
| commit | 5a11a2767731139bf87e667331aa2209e33a1d19 (patch) | |
| tree | 15579db5a0719a29dc82a1ac48b0a0806227ce71 /rust/helpers/workqueue.c | |
| parent | ca28e80abe4219c8f1a2961ae05102d70af6dc87 (diff) | |
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: 689275140cb8 ("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 dbc064adfcf9095e7d895bea87b2f75c1ab23236)
Cc: stable@vger.kernel.org
Diffstat (limited to 'rust/helpers/workqueue.c')
0 files changed, 0 insertions, 0 deletions