Add a new intersect callback function fetching the
start offset from struct ttm_resource.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_mem.c | 15 +++++++++++++++
drivers/gpu/drm/nouveau/nouveau_mem.h | 3 +++
drivers/gpu/drm/nouveau/nouveau_ttm.c | 12 ++++++++++++
3 files changed, 30 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 2e517cdc24c9..b8a773f03c32 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -187,3 +187,18 @@ nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
*res = &mem->base;
return 0;
}
+
+bool
+nouveau_mem_intersect(struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size)
+{
+ u32 num_pages = PFN_UP(size);
+
+ /* Don't evict BOs outside of the requested placement range */
+ if (place->fpfn >= (res->start + num_pages) ||
+ (place->lpfn && place->lpfn <= res->start))
+ return false;
+
+ return true;
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.h b/drivers/gpu/drm/nouveau/nouveau_mem.h
index 325551eba5cd..349fefe48e3c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.h
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.h
@@ -25,6 +25,9 @@ int nouveau_mem_new(struct nouveau_cli *, u8 kind, u8 comp,
struct ttm_resource **);
void nouveau_mem_del(struct ttm_resource_manager *man,
struct ttm_resource *);
+bool nouveau_mem_intersect(struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size);
int nouveau_mem_vram(struct ttm_resource *, bool contig, u8 page);
int nouveau_mem_host(struct ttm_resource *, struct ttm_tt *);
void nouveau_mem_fini(struct nouveau_mem *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 85f1f5a0fe5d..46afd57008dd 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -42,6 +42,15 @@ nouveau_manager_del(struct ttm_resource_manager *man,
nouveau_mem_del(man, reg);
}
+static bool
+nouveau_manager_intersect(struct ttm_resource_manager *man,
+ struct ttm_resource *res,
+ const struct ttm_place *place,
+ size_t size)
+{
+ return nouveau_mem_intersect(res, place, size);
+}
+
static int
nouveau_vram_manager_new(struct ttm_resource_manager *man,
struct ttm_buffer_object *bo,
@@ -73,6 +82,7 @@ nouveau_vram_manager_new(struct ttm_resource_manager *man,
const struct ttm_resource_manager_func nouveau_vram_manager = {
.alloc = nouveau_vram_manager_new,
.free = nouveau_manager_del,
+ .intersect = nouveau_manager_intersect,
};
static int
@@ -97,6 +107,7 @@ nouveau_gart_manager_new(struct ttm_resource_manager *man,
const struct ttm_resource_manager_func nouveau_gart_manager = {
.alloc = nouveau_gart_manager_new,
.free = nouveau_manager_del,
+ .intersect = nouveau_manager_intersect,
};
static int
@@ -130,6 +141,7 @@ nv04_gart_manager_new(struct ttm_resource_manager *man,
const struct ttm_resource_manager_func nv04_gart_manager = {
.alloc = nv04_gart_manager_new,
.free = nouveau_manager_del,
+ .intersect = nouveau_manager_intersect,
};
static int
--
2.25.1
