f6ce410a59
If userspace is running an synchronously atomic commit and interrupts the atomic operation during fence_wait() it will hang until the timer expires, so here we change the wait to be interruptible so it stop immediately when userspace wants to quit. Also adds the necessary error checking for fence_wait(). v2: Comment by Daniel Vetter - Add error checking for fence_wait() v3: Rebase on top of new atomic noblocking support v4: Comment by Maarten Lankhorst - remove 'swapped' bitfield as it was duplicating information v5: Comments by Maarten Lankhorst - assign plane->state to plane_state if !intr - squash previous patch into this one v6: Comment by Sean Paul - rename intr to pre_swap Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> [seanpaul fixed a couple checkpatch warnings and moved the preswap comment] Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1473707291-14781-1-git-send-email-gustavo@padovan.org
253 lines
10 KiB
C
253 lines
10 KiB
C
/*
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* Copyright (C) 2014 Red Hat
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* Copyright (C) 2014 Intel Corp.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rob Clark <robdclark@gmail.com>
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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*/
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#ifndef DRM_ATOMIC_HELPER_H_
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#define DRM_ATOMIC_HELPER_H_
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#include <drm/drm_crtc.h>
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#include <drm/drm_modeset_helper_vtables.h>
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#include <drm/drm_modeset_helper.h>
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struct drm_atomic_state;
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int drm_atomic_helper_check_modeset(struct drm_device *dev,
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struct drm_atomic_state *state);
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int drm_atomic_helper_check_planes(struct drm_device *dev,
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struct drm_atomic_state *state);
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int drm_atomic_helper_check(struct drm_device *dev,
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struct drm_atomic_state *state);
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void drm_atomic_helper_commit_tail(struct drm_atomic_state *state);
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int drm_atomic_helper_commit(struct drm_device *dev,
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struct drm_atomic_state *state,
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bool nonblock);
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int drm_atomic_helper_wait_for_fences(struct drm_device *dev,
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struct drm_atomic_state *state,
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bool pre_swap);
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bool drm_atomic_helper_framebuffer_changed(struct drm_device *dev,
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struct drm_atomic_state *old_state,
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struct drm_crtc *crtc);
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void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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void
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drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,
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struct drm_atomic_state *state);
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void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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int drm_atomic_helper_prepare_planes(struct drm_device *dev,
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struct drm_atomic_state *state);
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#define DRM_PLANE_COMMIT_ACTIVE_ONLY BIT(0)
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#define DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET BIT(1)
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void drm_atomic_helper_commit_planes(struct drm_device *dev,
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struct drm_atomic_state *state,
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uint32_t flags);
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void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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void drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state);
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void
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drm_atomic_helper_disable_planes_on_crtc(struct drm_crtc_state *old_crtc_state,
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bool atomic);
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void drm_atomic_helper_swap_state(struct drm_atomic_state *state,
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bool stall);
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/* nonblocking commit helpers */
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int drm_atomic_helper_setup_commit(struct drm_atomic_state *state,
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bool nonblock);
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void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *state);
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void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *state);
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void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *state);
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/* implementations for legacy interfaces */
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int drm_atomic_helper_update_plane(struct drm_plane *plane,
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struct drm_crtc *crtc,
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struct drm_framebuffer *fb,
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int crtc_x, int crtc_y,
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unsigned int crtc_w, unsigned int crtc_h,
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uint32_t src_x, uint32_t src_y,
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uint32_t src_w, uint32_t src_h);
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int drm_atomic_helper_disable_plane(struct drm_plane *plane);
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int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
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struct drm_plane_state *plane_state);
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int drm_atomic_helper_set_config(struct drm_mode_set *set);
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int __drm_atomic_helper_set_config(struct drm_mode_set *set,
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struct drm_atomic_state *state);
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int drm_atomic_helper_disable_all(struct drm_device *dev,
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struct drm_modeset_acquire_ctx *ctx);
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struct drm_atomic_state *drm_atomic_helper_suspend(struct drm_device *dev);
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int drm_atomic_helper_resume(struct drm_device *dev,
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struct drm_atomic_state *state);
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int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc,
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struct drm_property *property,
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uint64_t val);
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int drm_atomic_helper_plane_set_property(struct drm_plane *plane,
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struct drm_property *property,
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uint64_t val);
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int drm_atomic_helper_connector_set_property(struct drm_connector *connector,
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struct drm_property *property,
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uint64_t val);
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int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
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struct drm_framebuffer *fb,
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struct drm_pending_vblank_event *event,
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uint32_t flags);
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int drm_atomic_helper_connector_dpms(struct drm_connector *connector,
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int mode);
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struct drm_encoder *
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drm_atomic_helper_best_encoder(struct drm_connector *connector);
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/* default implementations for state handling */
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void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);
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void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc,
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struct drm_crtc_state *state);
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struct drm_crtc_state *
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drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc);
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void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc_state *state);
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void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
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struct drm_crtc_state *state);
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void drm_atomic_helper_plane_reset(struct drm_plane *plane);
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void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane,
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struct drm_plane_state *state);
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struct drm_plane_state *
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drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
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void __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state);
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void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
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struct drm_plane_state *state);
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void __drm_atomic_helper_connector_reset(struct drm_connector *connector,
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struct drm_connector_state *conn_state);
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void drm_atomic_helper_connector_reset(struct drm_connector *connector);
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void
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__drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
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struct drm_connector_state *state);
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struct drm_connector_state *
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drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector);
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struct drm_atomic_state *
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drm_atomic_helper_duplicate_state(struct drm_device *dev,
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struct drm_modeset_acquire_ctx *ctx);
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void
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__drm_atomic_helper_connector_destroy_state(struct drm_connector_state *state);
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void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
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struct drm_connector_state *state);
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int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc,
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u16 *red, u16 *green, u16 *blue,
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uint32_t size);
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/**
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* drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC
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* @plane: the loop cursor
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* @crtc: the crtc whose planes are iterated
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*
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* This iterates over the current state, useful (for example) when applying
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* atomic state after it has been checked and swapped. To iterate over the
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* planes which *will* be attached (for ->atomic_check()) see
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* drm_atomic_crtc_state_for_each_plane().
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*/
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#define drm_atomic_crtc_for_each_plane(plane, crtc) \
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drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask)
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/**
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* drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state
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* @plane: the loop cursor
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* @crtc_state: the incoming crtc-state
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*
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* Similar to drm_crtc_for_each_plane(), but iterates the planes that will be
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* attached if the specified state is applied. Useful during (for example)
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* ->atomic_check() operations, to validate the incoming state.
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*/
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#define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \
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drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask)
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/**
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* drm_crtc_atomic_state_for_each_plane_state - iterate over attached planes in new state
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* @plane: the loop cursor
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* @plane_state: loop cursor for the plane's state, must be const
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* @crtc_state: the incoming crtc-state
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*
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* Similar to drm_crtc_for_each_plane(), but iterates the planes that will be
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* attached if the specified state is applied. Useful during (for example)
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* ->atomic_check() operations, to validate the incoming state.
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*
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* Compared to just drm_atomic_crtc_state_for_each_plane() this also fills in a
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* const plane_state. This is useful when a driver just wants to peek at other
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* active planes on this crtc, but does not need to change it.
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*/
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#define drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state) \
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drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) \
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for_each_if ((plane_state = \
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__drm_atomic_get_current_plane_state((crtc_state)->state, \
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plane)))
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/*
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* drm_atomic_plane_disabling - check whether a plane is being disabled
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* @plane: plane object
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* @old_state: previous atomic state
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*
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* Checks the atomic state of a plane to determine whether it's being disabled
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* or not. This also WARNs if it detects an invalid state (both CRTC and FB
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* need to either both be NULL or both be non-NULL).
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*
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* RETURNS:
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* True if the plane is being disabled, false otherwise.
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*/
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static inline bool
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drm_atomic_plane_disabling(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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/*
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* When disabling a plane, CRTC and FB should always be NULL together.
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* Anything else should be considered a bug in the atomic core, so we
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* gently warn about it.
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*/
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WARN_ON((plane->state->crtc == NULL && plane->state->fb != NULL) ||
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(plane->state->crtc != NULL && plane->state->fb == NULL));
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/*
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* When using the transitional helpers, old_state may be NULL. If so,
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* we know nothing about the current state and have to assume that it
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* might be enabled.
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*
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* When using the atomic helpers, old_state won't be NULL. Therefore
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* this check assumes that either the driver will have reconstructed
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* the correct state in ->reset() or that the driver will have taken
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* appropriate measures to disable all planes.
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*/
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return (!old_state || old_state->crtc) && !plane->state->crtc;
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}
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#endif /* DRM_ATOMIC_HELPER_H_ */
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