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authorThomas Hellstrom <thellstrom@vmware.com>2019-03-19 13:27:50 +0100
committerThomas Hellstrom <thellstrom@vmware.com>2019-11-06 15:45:32 +0100
commit9ca7d19ff8ba6207bccab46536814fe4839df80a (patch)
tree61e4efb29e4ffdd537e65037f7ed8177b8ca0a82 /include/uapi/drm
parentdrm/vmwgfx: Implement an infrastructure for read-coherent resources (diff)
downloadlinux-9ca7d19ff8ba6207bccab46536814fe4839df80a.tar.xz
linux-9ca7d19ff8ba6207bccab46536814fe4839df80a.zip
drm/vmwgfx: Add surface dirty-tracking callbacks
Add the callbacks necessary to implement emulated coherent memory for surfaces. Add a flag to the gb_surface_create ioctl to indicate that surface memory should be coherent. Also bump the drm minor version to signal the availability of coherent surfaces. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com>
Diffstat (limited to 'include/uapi/drm')
-rw-r--r--include/uapi/drm/vmwgfx_drm.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h
index 399f58317cff..02cab33f2f25 100644
--- a/include/uapi/drm/vmwgfx_drm.h
+++ b/include/uapi/drm/vmwgfx_drm.h
@@ -891,11 +891,13 @@ struct drm_vmw_shader_arg {
* surface.
* @drm_vmw_surface_flag_create_buffer: Create a backup buffer if none is
* given.
+ * @drm_vmw_surface_flag_coherent: Back surface with coherent memory.
*/
enum drm_vmw_surface_flags {
drm_vmw_surface_flag_shareable = (1 << 0),
drm_vmw_surface_flag_scanout = (1 << 1),
- drm_vmw_surface_flag_create_buffer = (1 << 2)
+ drm_vmw_surface_flag_create_buffer = (1 << 2),
+ drm_vmw_surface_flag_coherent = (1 << 3),
};
/**