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| author | Chunming Zhou <David1.Zhou@amd.com> | 2016-07-15 11:19:20 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-08 11:32:00 -0400 |
| commit | 63fbf42f7307a5911237fed3285e669d9d4d0d1a (patch) | |
| tree | 41ad327f379df42ac305aeb3bd5da13057b23cb3 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 5c6c201ccbaf9d3901f829441d457293f7ca8ef4 (diff) | |
| download | lwn-63fbf42f7307a5911237fed3285e669d9d4d0d1a.tar.gz lwn-63fbf42f7307a5911237fed3285e669d9d4d0d1a.zip | |
drm/amdgpu: add check_soft_reset ip func
It is used to identify if the ip block is hang.
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@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 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index df7ab2458e50..fd7698a56f3b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1937,6 +1937,24 @@ int amdgpu_resume_kms(struct drm_device *dev, bool resume, bool fbcon) return 0; } +static bool amdgpu_check_soft_reset(struct amdgpu_device *adev) +{ + int i; + bool asic_hang = false; + + for (i = 0; i < adev->num_ip_blocks; i++) { + if (!adev->ip_block_status[i].valid) + continue; + if (adev->ip_blocks[i].funcs->check_soft_reset) + adev->ip_blocks[i].funcs->check_soft_reset(adev); + if (adev->ip_block_status[i].hang) { + DRM_INFO("IP block:%d is hang!\n", i); + asic_hang = true; + } + } + return asic_hang; +} + /** * amdgpu_gpu_reset - reset the asic * @@ -1950,6 +1968,11 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev) int i, r; int resched; + if (!amdgpu_check_soft_reset(adev)) { + DRM_INFO("No hardware hang detected. Did some blocks stall?\n"); + return 0; + } + atomic_inc(&adev->gpu_reset_counter); /* block TTM */ |