On 26/07/2023 16:53, Jonathan Cavitt wrote:
The object pin created for shmem_create_from_object is just a
single use mapping with the sole purpose of reading the contents
of the whole object in bulk. And the whole source object is also
even a throw-away. Ergo, the additional logic required by
i915_coherent_map_type can be safely dropped and simplified.
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/shmem_utils.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/shmem_utils.c b/drivers/gpu/drm/i915/gt/shmem_utils.c
index 449c9ed44382..bccc3a1200bc 100644
--- a/drivers/gpu/drm/i915/gt/shmem_utils.c
+++ b/drivers/gpu/drm/i915/gt/shmem_utils.c
@@ -33,7 +33,6 @@ struct file *shmem_create_from_data(const char *name, void *data, size_t len)
struct file *shmem_create_from_object(struct drm_i915_gem_object *obj)
{
- struct drm_i915_private *i915 = to_i915(obj->base.dev);
enum i915_map_type map_type;
struct file *file;
void *ptr;
@@ -44,7 +43,7 @@ struct file *shmem_create_from_object(struct drm_i915_gem_object *obj)
return file;
}
- map_type = i915_coherent_map_type(i915, obj, true);
+ map_type = i915_gem_object_is_lmem(obj) ? I915_MAP_WC : I915_MAP_WB;
ptr = i915_gem_object_pin_map_unlocked(obj, map_type);
if (IS_ERR(ptr))
return ERR_CAST(ptr);
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Regards,
Tvrtko
