drm/i915: Add i915_gem_object_create_from_data()
i915_gem_object_create_from_data() is a generic function to save data
from a plain linear buffer in a new pageable gem object that can later
be accessed by the CPU and/or GPU.
We will need this for the microcontroller firmware loading support code.
Derived from i915_gem_object_write(), originally by Alex Dai
v2:
Change of function: now allocates & fills a new object, rather than
writing to an existing object
New name courtesy of Chris Wilson
Explicit domain-setting and other improvements per review comments
by Chris Wilson & Daniel Vetter
v4:
Rebased
Issue: VIZ-4884
Signed-off-by: Alex Dai <yu.dai@intel.com>
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 23ce125e..77c2379 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2758,6 +2758,8 @@
const struct drm_i915_gem_object_ops *ops);
struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
size_t size);
+struct drm_i915_gem_object *i915_gem_object_create_from_data(
+ struct drm_device *dev, const void *data, size_t size);
void i915_init_vm(struct drm_i915_private *dev_priv,
struct i915_address_space *vm);
void i915_gem_free_object(struct drm_gem_object *obj);