From 23905c91c6b9493033bbbce299c3d1a770f9fddd Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 16 Jun 2021 16:24:58 +0100
Subject: drm/i915/ttm: pass along the I915_BO_ALLOC_CONTIGUOUS
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Git-commit: beb6a22911ff6f7e933670b43e4bda5be56bd8f9
Patch-mainline: v5.15-rc1
References: jsc#SLE-22601

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>
Link: https://patchwork.freedesktop.org/patch/msgid/20210616152501.394518-4-matthew.auld@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

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;
-- 
2.33.1