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drm/i915: Add .atomic_{get, set}_property() entrypoints to planes 

When we flip on the DRIVER_ATOMIC bit, the DRM core will start calling
this entrypoint to set and lookup driver-specific plane property values,
rather than maintaining a shadow copy in object->properties.

Note that although we add these functions to the plane vtable, they will
not yet be called.  Future patches that switch our .set_property()
handler and/or enable full atomic functionality are required before
these code paths will be executed.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Matt Roper 2015-01-21 16:35:43 -08:00 committed by Daniel Vetter
parent 65a3fea0a6
commit a98b3431af
3 changed files with 68 additions and 0 deletions
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58
drivers/gpu/drm/i915/intel_atomic_plane.c
View File

@ -177,3 +177,61 @@ const struct drm_plane_helper_funcs intel_plane_helper_funcs = {
.atomic_update = intel_plane_atomic_update,
};
/**
* intel_plane_atomic_get_property - fetch plane property value
* @plane: plane to fetch property for
* @state: state containing the property value
* @property: property to look up
* @val: pointer to write property value into
*
* The DRM core does not store shadow copies of properties for
* atomic-capable drivers. This entrypoint is used to fetch
* the current value of a driver-specific plane property.
*/
int
intel_plane_atomic_get_property(struct drm_plane *plane,
const struct drm_plane_state *state,
struct drm_property *property,
uint64_t *val)
{
struct drm_mode_config *config = &plane->dev->mode_config;
if (property == config->rotation_property) {
*val = state->rotation;
} else {
DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name);
return -EINVAL;
}
return 0;
}
/**
* intel_plane_atomic_set_property - set plane property value
* @plane: plane to set property for
* @state: state to update property value in
* @property: property to set
* @val: value to set property to
*
* Writes the specified property value for a plane into the provided atomic
* state object.
*
* Returns 0 on success, -EINVAL on unrecognized properties
*/
int
intel_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
uint64_t val)
{
struct drm_mode_config *config = &plane->dev->mode_config;
if (property == config->rotation_property) {
state->rotation = val;
} else {
DRM_DEBUG_KMS("Unknown plane property '%s'\n", property->name);
return -EINVAL;
}
return 0;
}

2
drivers/gpu/drm/i915/intel_display.c
View File

@ -12054,6 +12054,8 @@ const struct drm_plane_funcs intel_plane_funcs = {
.disable_plane = drm_plane_helper_disable,
.destroy = intel_plane_destroy,
.set_property = intel_plane_set_property,
.atomic_get_property = intel_plane_atomic_get_property,
.atomic_set_property = intel_plane_atomic_set_property,
.atomic_duplicate_state = intel_plane_duplicate_state,
.atomic_destroy_state = intel_plane_destroy_state,

8
drivers/gpu/drm/i915/intel_drv.h
View File

@ -945,6 +945,14 @@ int intel_prepare_plane_fb(struct drm_plane *plane,
struct drm_framebuffer *fb);
void intel_cleanup_plane_fb(struct drm_plane *plane,
struct drm_framebuffer *fb);
int intel_plane_atomic_get_property(struct drm_plane *plane,
const struct drm_plane_state *state,
struct drm_property *property,
uint64_t *val);
int intel_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
uint64_t val);
/* shared dpll functions */
struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);