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authorArunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>2022-08-20 10:32:59 +0300
committerChristian König <christian.koenig@amd.com>2022-08-22 16:33:12 +0300
commit544432703b2fe73a07f387c0b883da03ffa5671e (patch)
treec30dcf33231d48109c5b9903fd40578c24040038 /include/drm/ttm
parent0a58d2ae572adaec8d046f8d35b40c2c32ac7468 (diff)
downloadlinux-544432703b2fe73a07f387c0b883da03ffa5671e.tar.xz
drm/ttm: Add new callbacks to ttm res mgr
We are adding two new callbacks to ttm resource manager function to handle intersection and compatibility of placement and resources. v2: move the amdgpu and ttm_range_manager changes to separate patches (Christian) v3: rename "intersect" to "intersects" (Matthew) v4: move !place check to the !res if and return false in ttm_resource_compatible() function (Christian) v5: move bits of code from patch number 6 to avoid temporary driver breakup (Christian) Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220820073304.178444-1-Arunpravin.PaneerSelvam@amd.com
Diffstat (limited to 'include/drm/ttm')
-rw-r--r--include/drm/ttm/ttm_resource.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index ca89a48c2460..5afc6d664fde 100644
--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -89,6 +89,38 @@ struct ttm_resource_manager_func {
struct ttm_resource *res);
/**
+ * struct ttm_resource_manager_func member intersects
+ *
+ * @man: Pointer to a memory type manager.
+ * @res: Pointer to a struct ttm_resource to be checked.
+ * @place: Placement to check against.
+ * @size: Size of the check.
+ *
+ * Test if @res intersects with @place + @size. Used to judge if
+ * evictions are valueable or not.
+ */
+ bool (*intersects)(struct ttm_resource_manager *man,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size);
+
+ /**
+ * struct ttm_resource_manager_func member compatible
+ *
+ * @man: Pointer to a memory type manager.
+ * @res: Pointer to a struct ttm_resource to be checked.
+ * @place: Placement to check against.
+ * @size: Size of the check.
+ *
+ * Test if @res compatible with @place + @size. Used to check of
+ * the need to move the backing store or not.
+ */
+ bool (*compatible)(struct ttm_resource_manager *man,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size);
+
+ /**
* struct ttm_resource_manager_func member debug
*
* @man: Pointer to a memory type manager.
@@ -329,6 +361,14 @@ int ttm_resource_alloc(struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource **res);
void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource **res);
+bool ttm_resource_intersects(struct ttm_device *bdev,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size);
+bool ttm_resource_compatible(struct ttm_device *bdev,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size);
bool ttm_resource_compat(struct ttm_resource *res,
struct ttm_placement *placement);
void ttm_resource_set_bo(struct ttm_resource *res,