diff mbox series

[v5,4/7] drm/i915/ttm: pass along the I915_BO_ALLOC_CONTIGUOUS

Message ID 20210616152501.394518-4-matthew.auld@intel.com (mailing list archive)
State New, archived
Headers show
Series [v5,1/7] drm/i915/ttm: add ttm_buddy_man | expand

Commit Message

Matthew Auld June 16, 2021, 3:24 p.m. UTC
Currently we just ignore the I915_BO_ALLOC_CONTIGUOUS flag, which is
fine since everything is already contiguous with the ttm range manager.
However in the next patch we want to switch over to the ttm buddy
manager, where allocations are by default not contiguous.

v2(Thomas):
    - Forward ALLOC_CONTIG for all regions

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index d7595688e182..90d342e3df24 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -79,10 +79,14 @@  i915_ttm_select_tt_caching(const struct drm_i915_gem_object *obj)
 
 static void
 i915_ttm_place_from_region(const struct intel_memory_region *mr,
-			   struct ttm_place *place)
+			   struct ttm_place *place,
+			   unsigned int flags)
 {
 	memset(place, 0, sizeof(*place));
 	place->mem_type = intel_region_to_ttm_type(mr);
+
+	if (flags & I915_BO_ALLOC_CONTIGUOUS)
+		place->flags = TTM_PL_FLAG_CONTIGUOUS;
 }
 
 static void
@@ -92,16 +96,17 @@  i915_ttm_placement_from_obj(const struct drm_i915_gem_object *obj,
 			    struct ttm_placement *placement)
 {
 	unsigned int num_allowed = obj->mm.n_placements;
+	unsigned int flags = obj->flags;
 	unsigned int i;
 
 	placement->num_placement = 1;
 	i915_ttm_place_from_region(num_allowed ? obj->mm.placements[0] :
-				   obj->mm.region, requested);
+				   obj->mm.region, requested, flags);
 
 	/* Cache this on object? */
 	placement->num_busy_placement = num_allowed;
 	for (i = 0; i < placement->num_busy_placement; ++i)
-		i915_ttm_place_from_region(obj->mm.placements[i], busy + i);
+		i915_ttm_place_from_region(obj->mm.placements[i], busy + i, flags);
 
 	if (num_allowed == 0) {
 		*busy = *requested;