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Merge tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm

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Pull drm coherent memory support for vmwgfx from Dave Airlie:
 "This is a separate pull for the mm pagewalking + drm/vmwgfx work
  Thomas did and you were involved in, I've left it separate in case you
  don't feel as comfortable with it as the other stuff.

  It has mm acks/r-b in the right places from what I can see"

* tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm:
  drm/vmwgfx: Add surface dirty-tracking callbacks
  drm/vmwgfx: Implement an infrastructure for read-coherent resources
  drm/vmwgfx: Use an RBtree instead of linked list for MOB resources
  drm/vmwgfx: Implement an infrastructure for write-coherent resources
  mm: Add write-protect and clean utilities for address space ranges
  mm: Add a walk_page_mapping() function to the pagewalk code
  mm: pagewalk: Take the pagetable lock in walk_pte_range()
  mm: Remove BUG_ON mmap_sem not held from xxx_trans_huge_lock()
  drm/ttm: Convert vm callbacks to helpers
  drm/ttm: Remove explicit typecasts of vm_private_data
This commit is contained in:
Linus Torvalds
2019-11-30 09:38:11 -08:00
parent 81b6b96475 0a6cad5df5
commit d5bb349dbb
23 changed files with 1996 additions and 123 deletions
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4
include/uapi/drm/vmwgfx_drm.h
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@@ -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),
};
/**