diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_atomic.c | 35 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 3 |
3 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c index 52ef6f4abe4..19a9dd5408f 100644 --- a/drivers/gpu/drm/i915/intel_atomic.c +++ b/drivers/gpu/drm/i915/intel_atomic.c @@ -200,3 +200,38 @@ intel_connector_atomic_get_property(struct drm_connector *connector, return -EINVAL; } + +/* + * intel_crtc_duplicate_state - duplicate crtc state + * @crtc: drm crtc + * + * Allocates and returns a copy of the crtc state (both common and + * Intel-specific) for the specified crtc. + * + * Returns: The newly allocated crtc state, or NULL on failure. + */ +struct drm_crtc_state * +intel_crtc_duplicate_state(struct drm_crtc *crtc) +{ + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + + if (WARN_ON(!intel_crtc->config)) + return kzalloc(sizeof(*intel_crtc->config), GFP_KERNEL); + + return kmemdup(intel_crtc->config, sizeof(*intel_crtc->config), + GFP_KERNEL); +} + +/** + * intel_crtc_destroy_state - destroy crtc state + * @crtc: drm crtc + * + * Destroys the crtc state (both common and Intel-specific) for the + * specified crtc. + */ +void +intel_crtc_destroy_state(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + drm_atomic_helper_crtc_destroy_state(crtc, state); +} diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b461f90698e..2dc6d64d923 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11652,6 +11652,8 @@ static const struct drm_crtc_funcs intel_crtc_funcs = { .set_config = intel_crtc_set_config, .destroy = intel_crtc_destroy, .page_flip = intel_crtc_page_flip, + .atomic_duplicate_state = intel_crtc_duplicate_state, + .atomic_destroy_state = intel_crtc_destroy_state, }; static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv, diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 28b846e2e15..eef79ccd0b7 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1258,6 +1258,9 @@ int intel_connector_atomic_get_property(struct drm_connector *connector, const struct drm_connector_state *state, struct drm_property *property, uint64_t *val); +struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc); +void intel_crtc_destroy_state(struct drm_crtc *crtc, + struct drm_crtc_state *state); /* intel_atomic_plane.c */ struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane); |