From a1d29476d666f5972f200c49e76df339ced6b07a Mon Sep 17 00:00:00 2001 From: Christian König Date: Wed, 30 Mar 2016 14:42:57 +0200 Subject: drm/amdgpu: optionally enable GART debugfs file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Keeping the pages array around can use a lot of system memory when you want a large GART. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c') 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 } -- cgit v1.2.3