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authorDave Airlie <airlied@redhat.com>2011-02-07 12:16:14 +1000
committerDave Airlie <airlied@redhat.com>2011-02-07 12:16:14 +1000
commitff72145badb834e8051719ea66e024784d000cb4 (patch)
tree39dc5fc512e3e0836713de9defb91ea8b4033aa2 /include/drm/drmP.h
parent1f692a14cbfbeb11f9a9c16f25c8ecb8ab50d3d5 (diff)
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.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index fe29aadb129..3cbe7a02d2a 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)