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| author | Dave Airlie <airlied@redhat.com> | 2011-02-07 12:16:14 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-02-07 12:16:14 +1000 |
| commit | ff72145badb834e8051719ea66e024784d000cb4 (patch) | |
| tree | 39dc5fc512e3e0836713de9defb91ea8b4033aa2 /include/drm/drmP.h | |
| parent | 1f692a14cbfbeb11f9a9c16f25c8ecb8ab50d3d5 (diff) | |
| download | linux-stable-ff72145badb834e8051719ea66e024784d000cb4.tar.gz linux-stable-ff72145badb834e8051719ea66e024784d000cb4.tar.bz2 linux-stable-ff72145badb834e8051719ea66e024784d000cb4.zip | |
drm: dumb scanout create/mmap for intel/radeon (v3)
This is just an idea that might or might not be a good idea,
it basically adds two ioctls to create a dumb and map a dumb buffer
suitable for scanout. The handle can be passed to the KMS ioctls to create
a framebuffer.
It looks to me like it would be useful in the following cases:
a) in development drivers - we can always provide a shadowfb fallback.
b) libkms users - we can clean up libkms a lot and avoid linking
to libdrm_*.
c) plymouth via libkms is a lot easier.
Userspace bits would be just calls + mmaps. We could probably
mark these handles somehow as not being suitable for acceleartion
so as top stop people who are dumber than dumb.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drmP.h')
| -rw-r--r-- | include/drm/drmP.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h index fe29aadb129d..3cbe7a02d2aa 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -880,6 +880,17 @@ struct drm_driver { /* vga arb irq handler */ void (*vgaarb_irq)(struct drm_device *dev, bool state); + /* dumb alloc support */ + int (*dumb_create)(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args); + int (*dumb_map_offset)(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, + uint64_t *offset); + int (*dumb_destroy)(struct drm_file *file_priv, + struct drm_device *dev, + uint32_t handle); + /* Driver private ops for this object */ struct vm_operations_struct *gem_vm_ops; @@ -1544,6 +1555,7 @@ drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) int drm_gem_handle_create(struct drm_file *file_priv, struct drm_gem_object *obj, u32 *handlep); +int drm_gem_handle_delete(struct drm_file *filp, u32 handle); static inline void drm_gem_object_handle_reference(struct drm_gem_object *obj) |