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authorChristian König <christian.koenig@amd.com>2016-03-30 14:42:57 +0200
committerAlex Deucher <alexander.deucher@amd.com>2016-05-02 15:26:57 -0400
commita1d29476d666f5972f200c49e76df339ced6b07a (patch)
tree5ff8bfcc92cc9a4e2bf3f9d04f5dcc01fffad6df /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
parent4325198180e5aeff21f44ba32c9ec18d9dd3ba72 (diff)
downloadlinux-stericsson-a1d29476d666f5972f200c49e76df339ced6b07a.tar.gz
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.c9
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
}