forked from Minki/linux
5d943aa6c0
It's silly to have 2 mallocs when we could tie these two together. Also, Gustavo adds another one in his per-crtc out-fence patches. And I want to add more stuff here for nonblocking commit helpers. In the future we can use this to store a pointer to the preceeding state, making an atomic update entirely free-standing. This will be needed to be able to queue them up with a depth > 1. Cc: Gustavo Padovan <gustavo@padovan.org> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1464818821-5736-12-git-send-email-daniel.vetter@ffwll.ch
210 lines
7.7 KiB
C
210 lines
7.7 KiB
C
/*
|
|
* Copyright (C) 2014 Red Hat
|
|
* Copyright (C) 2014 Intel Corp.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Rob Clark <robdclark@gmail.com>
|
|
* Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
*/
|
|
|
|
#ifndef DRM_ATOMIC_H_
|
|
#define DRM_ATOMIC_H_
|
|
|
|
#include <drm/drm_crtc.h>
|
|
|
|
struct drm_atomic_state * __must_check
|
|
drm_atomic_state_alloc(struct drm_device *dev);
|
|
void drm_atomic_state_clear(struct drm_atomic_state *state);
|
|
void drm_atomic_state_free(struct drm_atomic_state *state);
|
|
|
|
int __must_check
|
|
drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state);
|
|
void drm_atomic_state_default_clear(struct drm_atomic_state *state);
|
|
void drm_atomic_state_default_release(struct drm_atomic_state *state);
|
|
|
|
struct drm_crtc_state * __must_check
|
|
drm_atomic_get_crtc_state(struct drm_atomic_state *state,
|
|
struct drm_crtc *crtc);
|
|
int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
|
|
struct drm_crtc_state *state, struct drm_property *property,
|
|
uint64_t val);
|
|
struct drm_plane_state * __must_check
|
|
drm_atomic_get_plane_state(struct drm_atomic_state *state,
|
|
struct drm_plane *plane);
|
|
int drm_atomic_plane_set_property(struct drm_plane *plane,
|
|
struct drm_plane_state *state, struct drm_property *property,
|
|
uint64_t val);
|
|
struct drm_connector_state * __must_check
|
|
drm_atomic_get_connector_state(struct drm_atomic_state *state,
|
|
struct drm_connector *connector);
|
|
int drm_atomic_connector_set_property(struct drm_connector *connector,
|
|
struct drm_connector_state *state, struct drm_property *property,
|
|
uint64_t val);
|
|
|
|
/**
|
|
* drm_atomic_get_existing_crtc_state - get crtc state, if it exists
|
|
* @state: global atomic state object
|
|
* @crtc: crtc to grab
|
|
*
|
|
* This function returns the crtc state for the given crtc, or NULL
|
|
* if the crtc is not part of the global atomic state.
|
|
*/
|
|
static inline struct drm_crtc_state *
|
|
drm_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
|
|
struct drm_crtc *crtc)
|
|
{
|
|
return state->crtcs[drm_crtc_index(crtc)].state;
|
|
}
|
|
|
|
/**
|
|
* drm_atomic_get_existing_plane_state - get plane state, if it exists
|
|
* @state: global atomic state object
|
|
* @plane: plane to grab
|
|
*
|
|
* This function returns the plane state for the given plane, or NULL
|
|
* if the plane is not part of the global atomic state.
|
|
*/
|
|
static inline struct drm_plane_state *
|
|
drm_atomic_get_existing_plane_state(struct drm_atomic_state *state,
|
|
struct drm_plane *plane)
|
|
{
|
|
return state->planes[drm_plane_index(plane)].state;
|
|
}
|
|
|
|
/**
|
|
* drm_atomic_get_existing_connector_state - get connector state, if it exists
|
|
* @state: global atomic state object
|
|
* @connector: connector to grab
|
|
*
|
|
* This function returns the connector state for the given connector,
|
|
* or NULL if the connector is not part of the global atomic state.
|
|
*/
|
|
static inline struct drm_connector_state *
|
|
drm_atomic_get_existing_connector_state(struct drm_atomic_state *state,
|
|
struct drm_connector *connector)
|
|
{
|
|
int index = drm_connector_index(connector);
|
|
|
|
if (index >= state->num_connector)
|
|
return NULL;
|
|
|
|
return state->connectors[index].state;
|
|
}
|
|
|
|
/**
|
|
* __drm_atomic_get_current_plane_state - get current plane state
|
|
* @state: global atomic state object
|
|
* @plane: plane to grab
|
|
*
|
|
* This function returns the plane state for the given plane, either from
|
|
* @state, or if the plane isn't part of the atomic state update, from @plane.
|
|
* This is useful in atomic check callbacks, when drivers need to peek at, but
|
|
* not change, state of other planes, since it avoids threading an error code
|
|
* back up the call chain.
|
|
*
|
|
* WARNING:
|
|
*
|
|
* Note that this function is in general unsafe since it doesn't check for the
|
|
* required locking for access state structures. Drivers must ensure that it is
|
|
* save to access the returned state structure through other means. One commone
|
|
* example is when planes are fixed to a single CRTC, and the driver knows that
|
|
* the CRTC locks is held already. In that case holding the CRTC locks gives a
|
|
* read-lock on all planes connected to that CRTC. But if planes can be
|
|
* reassigned things get more tricky. In that case it's better to use
|
|
* drm_atomic_get_plane_state and wire up full error handling.
|
|
*
|
|
* Returns:
|
|
*
|
|
* Read-only pointer to the current plane state.
|
|
*/
|
|
static inline const struct drm_plane_state *
|
|
__drm_atomic_get_current_plane_state(struct drm_atomic_state *state,
|
|
struct drm_plane *plane)
|
|
{
|
|
if (state->planes[drm_plane_index(plane)].state)
|
|
return state->planes[drm_plane_index(plane)].state;
|
|
|
|
return plane->state;
|
|
}
|
|
|
|
int __must_check
|
|
drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state,
|
|
struct drm_display_mode *mode);
|
|
int __must_check
|
|
drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
|
|
struct drm_property_blob *blob);
|
|
int __must_check
|
|
drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
|
|
struct drm_crtc *crtc);
|
|
void drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
|
|
struct drm_framebuffer *fb);
|
|
int __must_check
|
|
drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
|
|
struct drm_crtc *crtc);
|
|
int __must_check
|
|
drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
|
|
struct drm_crtc *crtc);
|
|
int __must_check
|
|
drm_atomic_add_affected_planes(struct drm_atomic_state *state,
|
|
struct drm_crtc *crtc);
|
|
|
|
void drm_atomic_legacy_backoff(struct drm_atomic_state *state);
|
|
|
|
void
|
|
drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);
|
|
|
|
int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
|
|
int __must_check drm_atomic_commit(struct drm_atomic_state *state);
|
|
int __must_check drm_atomic_nonblocking_commit(struct drm_atomic_state *state);
|
|
|
|
#define for_each_connector_in_state(__state, connector, connector_state, __i) \
|
|
for ((__i) = 0; \
|
|
(__i) < (__state)->num_connector && \
|
|
((connector) = (__state)->connectors[__i].ptr, \
|
|
(connector_state) = (__state)->connectors[__i].state, 1); \
|
|
(__i)++) \
|
|
for_each_if (connector)
|
|
|
|
#define for_each_crtc_in_state(__state, crtc, crtc_state, __i) \
|
|
for ((__i) = 0; \
|
|
(__i) < (__state)->dev->mode_config.num_crtc && \
|
|
((crtc) = (__state)->crtcs[__i].ptr, \
|
|
(crtc_state) = (__state)->crtcs[__i].state, 1); \
|
|
(__i)++) \
|
|
for_each_if (crtc_state)
|
|
|
|
#define for_each_plane_in_state(__state, plane, plane_state, __i) \
|
|
for ((__i) = 0; \
|
|
(__i) < (__state)->dev->mode_config.num_total_plane && \
|
|
((plane) = (__state)->planes[__i].ptr, \
|
|
(plane_state) = (__state)->planes[__i].state, 1); \
|
|
(__i)++) \
|
|
for_each_if (plane_state)
|
|
static inline bool
|
|
drm_atomic_crtc_needs_modeset(struct drm_crtc_state *state)
|
|
{
|
|
return state->mode_changed || state->active_changed ||
|
|
state->connectors_changed;
|
|
}
|
|
|
|
|
|
#endif /* DRM_ATOMIC_H_ */
|