diff options
author | Alex Deucher <alexander.deucher@amd.com> | 2016-01-14 10:25:22 -0500 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2016-02-10 14:16:55 -0500 |
commit | 18db89b4025a9fb71824d0ffd84594c9f6f41cec (patch) | |
tree | 023aa1127b29768083750a0c06821f00544b6079 /drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | |
parent | bfa99269ea6c6ca9e75bdddb92f0afce875fb010 (diff) | |
download | linux-18db89b4025a9fb71824d0ffd84594c9f6f41cec.tar.bz2 |
drm/amdgpu: add a debugfs property to trigger a GPU reset
Ported from similar code in radeon.
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index 988a32d578a0..08963fc83168 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -734,15 +734,33 @@ static int amdgpu_debugfs_fence_info(struct seq_file *m, void *data) return 0; } +/** + * amdgpu_debugfs_gpu_reset - manually trigger a gpu reset + * + * Manually trigger a gpu reset at the next fence wait. + */ +static int amdgpu_debugfs_gpu_reset(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = dev->dev_private; + + seq_printf(m, "gpu reset\n"); + amdgpu_gpu_reset(adev); + + return 0; +} + static struct drm_info_list amdgpu_debugfs_fence_list[] = { {"amdgpu_fence_info", &amdgpu_debugfs_fence_info, 0, NULL}, + {"amdgpu_gpu_reset", &amdgpu_debugfs_gpu_reset, 0, NULL} }; #endif int amdgpu_debugfs_fence_init(struct amdgpu_device *adev) { #if defined(CONFIG_DEBUG_FS) - return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_fence_list, 1); + return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_fence_list, 2); #else return 0; #endif |