diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index 7c8a4aedf07c..011630f62f85 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -128,6 +128,12 @@ const char *ras_block_string[] = { #define AMDGPU_RAS_FLAG_INIT_NEED_RESET 2 #define RAS_DEFAULT_FLAGS (AMDGPU_RAS_FLAG_INIT_BY_VBIOS) +static int amdgpu_ras_reserve_vram(struct amdgpu_device *adev, + uint64_t offset, uint64_t size, + struct amdgpu_bo **bo_ptr); +static int amdgpu_ras_release_vram(struct amdgpu_device *adev, + struct amdgpu_bo **bo_ptr); + static void amdgpu_ras_self_test(struct amdgpu_device *adev) { /* TODO */ @@ -307,6 +313,7 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user * { struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private; struct ras_debug_if data; + struct amdgpu_bo *bo; int ret = 0; ret = amdgpu_ras_debugfs_ctrl_parse_data(f, buf, size, pos, &data); @@ -324,7 +331,16 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user * ret = amdgpu_ras_feature_enable(adev, &data.head, 1); break; case 2: + ret = amdgpu_ras_reserve_vram(adev, + data.inject.address, PAGE_SIZE, &bo); + /* This address might be used already on failure. In fact we can + * perform an injection in such case. + */ + if (ret) + break; + data.inject.address = amdgpu_bo_gpu_offset(bo); ret = amdgpu_ras_error_inject(adev, &data.inject); + amdgpu_ras_release_vram(adev, &bo); break; default: ret = -EINVAL; |