diff options
| author | Monk Liu <Monk.Liu@amd.com> | 2017-01-25 10:48:01 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-30 06:52:46 +0300 |
| commit | 147b5983bb9b942af1f1d8d9e05d93f97cca312c (patch) | |
| tree | 12c0d32e7187e3de058a9d799421b988f476cd0e /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | ed17c71b3a89d5ef4d8c8053a29a78fa709bb458 (diff) | |
| download | linux-147b5983bb9b942af1f1d8d9e05d93f97cca312c.tar.xz | |
drm/amdgpu:add lock_reset for SRIOV
this lock is used for sriov_gpu_reset, only get this mutex
can run into sriov_gpu_reset.
we have couple source triggers gpu_reset for SRIOV:
1) submit timedout and trigger reset voluntarily
2) invalid instruction detected by ENGINE and trigger reset voluntarily
2) hypervisor found world switch hang and trigger flr and notify guest to
do reset.
all need take care and we need a mutex to protect the consistency of
reset routine.
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 1fc48e1690ff..2feb9aa3b1f4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -98,6 +98,7 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev) adev->enable_virtual_display = true; mutex_init(&adev->virt.lock_kiq); + mutex_init(&adev->virt.lock_reset); } uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg) |