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| author | Alex Deucher <alexander.deucher@amd.com> | 2018-11-01 08:02:01 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-14 23:04:57 +0300 |
| commit | 95e8e59ec49f7ca5c8d3f531c1d396961b5b961b (patch) | |
| tree | 916a39b00b91303e2fe7beddbff2dd867fa75ae1 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 9281f12cabb09059ae60603e14cc9cd98b02febb (diff) | |
| download | linux-95e8e59ec49f7ca5c8d3f531c1d396961b5b961b.tar.xz | |
drm/amdgpu: check if we need to reset at init time (v2)
To deal with situations like kexec or GPU VM passthrough
where the device may have been used previously without a
proper GPU reset between.
v2: rebase
bug: https://bugs.freedesktop.org/show_bug.cgi?id=108585
bug: https://bugs.freedesktop.org/show_bug.cgi?id=108754
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 1a558dc41ba6..8a61764e64cf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2550,6 +2550,17 @@ int amdgpu_device_init(struct amdgpu_device *adev, /* detect if we are with an SRIOV vbios */ amdgpu_device_detect_sriov_bios(adev); + /* check if we need to reset the asic + * E.g., driver was not cleanly unloaded previously, etc. + */ + if (amdgpu_asic_need_reset_on_init(adev)) { + r = amdgpu_asic_reset(adev); + if (r) { + dev_err(adev->dev, "asic reset on init failed\n"); + goto failed; + } + } + /* Post card if necessary */ if (amdgpu_device_need_post(adev)) { if (!adev->bios) { |