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| author | Christian König <christian.koenig@amd.com> | 2016-03-30 14:42:57 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-05-02 15:26:57 -0400 |
| commit | a1d29476d666f5972f200c49e76df339ced6b07a (patch) | |
| tree | 5ff8bfcc92cc9a4e2bf3f9d04f5dcc01fffad6df /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 4325198180e5aeff21f44ba32c9ec18d9dd3ba72 (diff) | |
| download | lwn-a1d29476d666f5972f200c49e76df339ced6b07a.tar.gz lwn-a1d29476d666f5972f200c49e76df339ced6b07a.zip | |
drm/amdgpu: optionally enable GART debugfs file
Keeping the pages array around can use a lot of system memory
when you want a large GART.
Signed-off-by: Christian König <christian.koenig@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_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 6f3369de232f..7a8bdfedff1d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1216,6 +1216,8 @@ static const struct file_operations amdgpu_ttm_vram_fops = { .llseek = default_llseek }; +#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS + static ssize_t amdgpu_ttm_gtt_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { @@ -1263,6 +1265,8 @@ static const struct file_operations amdgpu_ttm_gtt_fops = { #endif +#endif + static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev) { #if defined(CONFIG_DEBUG_FS) @@ -1278,6 +1282,7 @@ static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev) i_size_write(ent->d_inode, adev->mc.mc_vram_size); adev->mman.vram = ent; +#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS ent = debugfs_create_file("amdgpu_gtt", S_IFREG | S_IRUGO, root, adev, &amdgpu_ttm_gtt_fops); if (IS_ERR(ent)) @@ -1285,6 +1290,7 @@ static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev) i_size_write(ent->d_inode, adev->mc.gtt_size); adev->mman.gtt = ent; +#endif count = ARRAY_SIZE(amdgpu_ttm_debugfs_list); #ifdef CONFIG_SWIOTLB @@ -1306,7 +1312,10 @@ static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev) debugfs_remove(adev->mman.vram); adev->mman.vram = NULL; +#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS debugfs_remove(adev->mman.gtt); adev->mman.gtt = NULL; #endif + +#endif } |