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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-11-05 10:31:53 -0800 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2008-12-29 17:47:22 +1000 |
| commit | a2c0a97b784f837300f7b0869c82ab712c600952 (patch) | |
| tree | aca1cdf3d32e1cfa7387350483f6a70c74a24ffd /drivers/gpu/drm/drm_vm.c | |
| parent | a9587470f753d670d910293ecbf1c7b66c99de50 (diff) | |
| download | linux-a2c0a97b784f837300f7b0869c82ab712c600952.tar.gz | |
drm: GEM mmap support
Add core support for mapping of GEM objects. Drivers should provide a vm_operations_struct if they want to support page faulting of objects. The code for handling GEM object offsets was taken from TTM, which was written by Thomas Hellström. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_vm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_vm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index c234c6f24a8d..3ffae021d280 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -267,6 +267,9 @@ static void drm_vm_shm_close(struct vm_area_struct *vma) dmah.size = map->size; __drm_pci_free(dev, &dmah); break; + case _DRM_GEM: + DRM_ERROR("tried to rmmap GEM object\n"); + break; } drm_free(map, sizeof(*map), DRM_MEM_MAPS); } @@ -399,7 +402,7 @@ static struct vm_operations_struct drm_vm_sg_ops = { * Create a new drm_vma_entry structure as the \p vma private data entry and * add it to drm_device::vmalist. */ -static void drm_vm_open_locked(struct vm_area_struct *vma) +void drm_vm_open_locked(struct vm_area_struct *vma) { struct drm_file *priv = vma->vm_file->private_data; struct drm_device *dev = priv->minor->dev; @@ -540,7 +543,7 @@ EXPORT_SYMBOL(drm_core_get_reg_ofs); * according to the mapping type and remaps the pages. Finally sets the file * pointer and calls vm_open(). */ -static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) +int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) { struct drm_file *priv = filp->private_data; struct drm_device *dev = priv->minor->dev; |