diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2024-08-19 18:14:29 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-21 06:07:11 +0300 |
| commit | 9cead81eff635e3b3cbce51b40228f3bdc6f2b8c (patch) | |
| tree | a69a169dccef8e5cbef1aeb5ede4d36aee323256 /drivers/gpu/drm | |
| parent | c99769bceab4ecb6a067b9af11f9db281eea3e2a (diff) | |
| download | linux-9cead81eff635e3b3cbce51b40228f3bdc6f2b8c.tar.xz | |
drm/amdgpu: fix eGPU hotplug regression
The driver needs to wait for the on board firmware
to finish its initialization before probing the card.
Commit 959056982a9b ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
switched from using msleep() to using usleep_range() which
seems to have caused init failures on some navi1x boards. Switch
back to msleep().
Fixes: 959056982a9b ("drm/amdgpu: Fix discovery initialization failure during pci rescan")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3559
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3500
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Ma Jun <Jun.Ma2@amd.com>
(cherry picked from commit c69b07f7bbc905022491c45097923d3487479529)
Cc: stable@vger.kernel.org # 6.10.x
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c index ac108fca64fe..7b561e8e3caf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c @@ -278,7 +278,7 @@ static int amdgpu_discovery_read_binary_from_mem(struct amdgpu_device *adev, msg = RREG32(mmMP0_SMN_C2PMSG_33); if (msg & 0x80000000) break; - usleep_range(1000, 1100); + msleep(1); } } |