![Jani Nikula](/assets/img/avatar_default.png)
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1476113170-13816-1-git-send-email-jani.nikula@intel.com
1407 lines
48 KiB
C
1407 lines
48 KiB
C
/*
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* Copyright © 2006 Keith Packard
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* Copyright © 2007-2008 Dave Airlie
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* Copyright © 2007-2008 Intel Corporation
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* Jesse Barnes <jesse.barnes@intel.com>
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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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#ifndef __DRM_CRTC_H__
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#define __DRM_CRTC_H__
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#include <linux/i2c.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/idr.h>
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#include <linux/fb.h>
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#include <linux/hdmi.h>
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#include <linux/media-bus-format.h>
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#include <uapi/drm/drm_mode.h>
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#include <uapi/drm/drm_fourcc.h>
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#include <drm/drm_modeset_lock.h>
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#include <drm/drm_rect.h>
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#include <drm/drm_mode_object.h>
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#include <drm/drm_framebuffer.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_property.h>
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#include <drm/drm_bridge.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_plane.h>
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#include <drm/drm_blend.h>
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#include <drm/drm_color_mgmt.h>
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struct drm_device;
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struct drm_mode_set;
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struct drm_file;
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struct drm_clip_rect;
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struct device_node;
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struct fence;
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struct edid;
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static inline int64_t U642I64(uint64_t val)
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{
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return (int64_t)*((int64_t *)&val);
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}
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static inline uint64_t I642U64(int64_t val)
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{
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return (uint64_t)*((uint64_t *)&val);
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}
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/* data corresponds to displayid vend/prod/serial */
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struct drm_tile_group {
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struct kref refcount;
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struct drm_device *dev;
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int id;
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u8 group_data[8];
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};
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struct drm_crtc;
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struct drm_encoder;
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struct drm_pending_vblank_event;
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struct drm_plane;
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struct drm_bridge;
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struct drm_atomic_state;
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struct drm_crtc_helper_funcs;
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struct drm_encoder_helper_funcs;
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struct drm_plane_helper_funcs;
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/**
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* struct drm_crtc_state - mutable CRTC state
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* @crtc: backpointer to the CRTC
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* @enable: whether the CRTC should be enabled, gates all other state
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* @active: whether the CRTC is actively displaying (used for DPMS)
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* @planes_changed: planes on this crtc are updated
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* @mode_changed: crtc_state->mode or crtc_state->enable has been changed
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* @active_changed: crtc_state->active has been toggled.
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* @connectors_changed: connectors to this crtc have been updated
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* @zpos_changed: zpos values of planes on this crtc have been updated
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* @color_mgmt_changed: color management properties have changed (degamma or
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* gamma LUT or CSC matrix)
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* @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
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* @connector_mask: bitmask of (1 << drm_connector_index(connector)) of attached connectors
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* @encoder_mask: bitmask of (1 << drm_encoder_index(encoder)) of attached encoders
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* @last_vblank_count: for helpers and drivers to capture the vblank of the
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* update to ensure framebuffer cleanup isn't done too early
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* @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
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* @mode: current mode timings
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* @mode_blob: &drm_property_blob for @mode
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* @degamma_lut: Lookup table for converting framebuffer pixel data
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* before apply the conversion matrix
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* @ctm: Transformation matrix
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* @gamma_lut: Lookup table for converting pixel data after the
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* conversion matrix
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* @state: backpointer to global drm_atomic_state
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*
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* Note that the distinction between @enable and @active is rather subtile:
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* Flipping @active while @enable is set without changing anything else may
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* never return in a failure from the ->atomic_check callback. Userspace assumes
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* that a DPMS On will always succeed. In other words: @enable controls resource
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* assignment, @active controls the actual hardware state.
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*/
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struct drm_crtc_state {
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struct drm_crtc *crtc;
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bool enable;
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bool active;
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/* computed state bits used by helpers and drivers */
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bool planes_changed : 1;
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bool mode_changed : 1;
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bool active_changed : 1;
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bool connectors_changed : 1;
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bool zpos_changed : 1;
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bool color_mgmt_changed : 1;
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/* attached planes bitmask:
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* WARNING: transitional helpers do not maintain plane_mask so
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* drivers not converted over to atomic helpers should not rely
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* on plane_mask being accurate!
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*/
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u32 plane_mask;
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u32 connector_mask;
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u32 encoder_mask;
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/* last_vblank_count: for vblank waits before cleanup */
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u32 last_vblank_count;
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/* adjusted_mode: for use by helpers and drivers */
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struct drm_display_mode adjusted_mode;
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struct drm_display_mode mode;
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/* blob property to expose current mode to atomic userspace */
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struct drm_property_blob *mode_blob;
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/* blob property to expose color management to userspace */
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struct drm_property_blob *degamma_lut;
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struct drm_property_blob *ctm;
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struct drm_property_blob *gamma_lut;
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/**
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* @event:
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*
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* Optional pointer to a DRM event to signal upon completion of the
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* state update. The driver must send out the event when the atomic
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* commit operation completes. There are two cases:
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*
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* - The event is for a CRTC which is being disabled through this
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* atomic commit. In that case the event can be send out any time
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* after the hardware has stopped scanning out the current
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* framebuffers. It should contain the timestamp and counter for the
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* last vblank before the display pipeline was shut off.
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*
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* - For a CRTC which is enabled at the end of the commit (even when it
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* undergoes an full modeset) the vblank timestamp and counter must
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* be for the vblank right before the first frame that scans out the
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* new set of buffers. Again the event can only be sent out after the
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* hardware has stopped scanning out the old buffers.
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*
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* - Events for disabled CRTCs are not allowed, and drivers can ignore
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* that case.
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*
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* This can be handled by the drm_crtc_send_vblank_event() function,
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* which the driver should call on the provided event upon completion of
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* the atomic commit. Note that if the driver supports vblank signalling
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* and timestamping the vblank counters and timestamps must agree with
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* the ones returned from page flip events. With the current vblank
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* helper infrastructure this can be achieved by holding a vblank
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* reference while the page flip is pending, acquired through
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* drm_crtc_vblank_get() and released with drm_crtc_vblank_put().
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* Drivers are free to implement their own vblank counter and timestamp
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* tracking though, e.g. if they have accurate timestamp registers in
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* hardware.
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*
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* For hardware which supports some means to synchronize vblank
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* interrupt delivery with committing display state there's also
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* drm_crtc_arm_vblank_event(). See the documentation of that function
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* for a detailed discussion of the constraints it needs to be used
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* safely.
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*/
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struct drm_pending_vblank_event *event;
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struct drm_atomic_state *state;
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};
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/**
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* struct drm_crtc_funcs - control CRTCs for a given device
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*
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* The drm_crtc_funcs structure is the central CRTC management structure
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* in the DRM. Each CRTC controls one or more connectors (note that the name
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* CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
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* connectors, not just CRTs).
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*
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* Each driver is responsible for filling out this structure at startup time,
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* in addition to providing other modesetting features, like i2c and DDC
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* bus accessors.
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*/
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struct drm_crtc_funcs {
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/**
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* @reset:
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*
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* Reset CRTC hardware and software state to off. This function isn't
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* called by the core directly, only through drm_mode_config_reset().
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* It's not a helper hook only for historical reasons.
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*
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* Atomic drivers can use drm_atomic_helper_crtc_reset() to reset
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* atomic state using this hook.
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*/
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void (*reset)(struct drm_crtc *crtc);
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/**
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* @cursor_set:
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*
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* Update the cursor image. The cursor position is relative to the CRTC
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* and can be partially or fully outside of the visible area.
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*
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* Note that contrary to all other KMS functions the legacy cursor entry
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* points don't take a framebuffer object, but instead take directly a
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* raw buffer object id from the driver's buffer manager (which is
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* either GEM or TTM for current drivers).
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*
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* This entry point is deprecated, drivers should instead implement
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* universal plane support and register a proper cursor plane using
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* drm_crtc_init_with_planes().
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*
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* This callback is optional
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
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uint32_t handle, uint32_t width, uint32_t height);
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/**
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* @cursor_set2:
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*
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* Update the cursor image, including hotspot information. The hotspot
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* must not affect the cursor position in CRTC coordinates, but is only
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* meant as a hint for virtualized display hardware to coordinate the
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* guests and hosts cursor position. The cursor hotspot is relative to
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* the cursor image. Otherwise this works exactly like @cursor_set.
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*
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* This entry point is deprecated, drivers should instead implement
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* universal plane support and register a proper cursor plane using
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* drm_crtc_init_with_planes().
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*
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* This callback is optional.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
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uint32_t handle, uint32_t width, uint32_t height,
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int32_t hot_x, int32_t hot_y);
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/**
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* @cursor_move:
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*
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* Update the cursor position. The cursor does not need to be visible
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* when this hook is called.
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*
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* This entry point is deprecated, drivers should instead implement
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* universal plane support and register a proper cursor plane using
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* drm_crtc_init_with_planes().
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*
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* This callback is optional.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
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/**
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* @gamma_set:
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*
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* Set gamma on the CRTC.
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*
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* This callback is optional.
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*
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* NOTE:
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*
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* Drivers that support gamma tables and also fbdev emulation through
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* the provided helper library need to take care to fill out the gamma
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* hooks for both. Currently there's a bit an unfortunate duplication
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* going on, which should eventually be unified to just one set of
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* hooks.
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*/
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int (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
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uint32_t size);
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/**
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* @destroy:
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*
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* Clean up plane resources. This is only called at driver unload time
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* through drm_mode_config_cleanup() since a CRTC cannot be hotplugged
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* in DRM.
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*/
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void (*destroy)(struct drm_crtc *crtc);
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/**
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* @set_config:
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*
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* This is the main legacy entry point to change the modeset state on a
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* CRTC. All the details of the desired configuration are passed in a
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* struct &drm_mode_set - see there for details.
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*
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* Drivers implementing atomic modeset should use
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* drm_atomic_helper_set_config() to implement this hook.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*set_config)(struct drm_mode_set *set);
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/**
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* @page_flip:
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*
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* Legacy entry point to schedule a flip to the given framebuffer.
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*
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* Page flipping is a synchronization mechanism that replaces the frame
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* buffer being scanned out by the CRTC with a new frame buffer during
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* vertical blanking, avoiding tearing (except when requested otherwise
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* through the DRM_MODE_PAGE_FLIP_ASYNC flag). When an application
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* requests a page flip the DRM core verifies that the new frame buffer
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* is large enough to be scanned out by the CRTC in the currently
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* configured mode and then calls the CRTC ->page_flip() operation with a
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* pointer to the new frame buffer.
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*
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* The driver must wait for any pending rendering to the new framebuffer
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* to complete before executing the flip. It should also wait for any
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* pending rendering from other drivers if the underlying buffer is a
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* shared dma-buf.
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*
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* An application can request to be notified when the page flip has
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* completed. The drm core will supply a struct &drm_event in the event
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* parameter in this case. This can be handled by the
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* drm_crtc_send_vblank_event() function, which the driver should call on
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* the provided event upon completion of the flip. Note that if
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* the driver supports vblank signalling and timestamping the vblank
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* counters and timestamps must agree with the ones returned from page
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* flip events. With the current vblank helper infrastructure this can
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* be achieved by holding a vblank reference while the page flip is
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* pending, acquired through drm_crtc_vblank_get() and released with
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* drm_crtc_vblank_put(). Drivers are free to implement their own vblank
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* counter and timestamp tracking though, e.g. if they have accurate
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* timestamp registers in hardware.
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*
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* This callback is optional.
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*
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* NOTE:
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*
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* Very early versions of the KMS ABI mandated that the driver must
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* block (but not reject) any rendering to the old framebuffer until the
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* flip operation has completed and the old framebuffer is no longer
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* visible. This requirement has been lifted, and userspace is instead
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* expected to request delivery of an event and wait with recycling old
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* buffers until such has been received.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure. Note that if a
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* ->page_flip() operation is already pending the callback should return
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* -EBUSY. Pageflips on a disabled CRTC (either by setting a NULL mode
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* or just runtime disabled through DPMS respectively the new atomic
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* "ACTIVE" state) should result in an -EINVAL error code. Note that
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* drm_atomic_helper_page_flip() checks this already for atomic drivers.
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*/
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int (*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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/**
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* @page_flip_target:
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*
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* Same as @page_flip but with an additional parameter specifying the
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* absolute target vertical blank period (as reported by
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* drm_crtc_vblank_count()) when the flip should take effect.
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*
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* Note that the core code calls drm_crtc_vblank_get before this entry
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* point, and will call drm_crtc_vblank_put if this entry point returns
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* any non-0 error code. It's the driver's responsibility to call
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* drm_crtc_vblank_put after this entry point returns 0, typically when
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* the flip completes.
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*/
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int (*page_flip_target)(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, uint32_t target);
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/**
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* @set_property:
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*
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* This is the legacy entry point to update a property attached to the
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* CRTC.
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*
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* Drivers implementing atomic modeset should use
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* drm_atomic_helper_crtc_set_property() to implement this hook.
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*
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* This callback is optional if the driver does not support any legacy
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* driver-private properties.
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*
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* RETURNS:
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*
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* 0 on success or a negative error code on failure.
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*/
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int (*set_property)(struct drm_crtc *crtc,
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struct drm_property *property, uint64_t val);
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/**
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* @atomic_duplicate_state:
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*
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* Duplicate the current atomic state for this CRTC and return it.
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* The core and helpers gurantee that any atomic state duplicated with
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* this hook and still owned by the caller (i.e. not transferred to the
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* driver by calling ->atomic_commit() from struct
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* &drm_mode_config_funcs) will be cleaned up by calling the
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* @atomic_destroy_state hook in this structure.
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*
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* Atomic drivers which don't subclass struct &drm_crtc should use
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* drm_atomic_helper_crtc_duplicate_state(). Drivers that subclass the
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* state structure to extend it with driver-private state should use
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* __drm_atomic_helper_crtc_duplicate_state() to make sure shared state is
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* duplicated in a consistent fashion across drivers.
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*
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* It is an error to call this hook before crtc->state has been
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* initialized correctly.
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*
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* NOTE:
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*
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* If the duplicate state references refcounted resources this hook must
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* acquire a reference for each of them. The driver must release these
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* references again in @atomic_destroy_state.
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*
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* RETURNS:
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*
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* Duplicated atomic state or NULL when the allocation failed.
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*/
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struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
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/**
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* @atomic_destroy_state:
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*
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* Destroy a state duplicated with @atomic_duplicate_state and release
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* or unreference all resources it references
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*/
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void (*atomic_destroy_state)(struct drm_crtc *crtc,
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struct drm_crtc_state *state);
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/**
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* @atomic_set_property:
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*
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* Decode a driver-private property value and store the decoded value
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* into the passed-in state structure. Since the atomic core decodes all
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* standardized properties (even for extensions beyond the core set of
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* properties which might not be implemented by all drivers) this
|
|
* requires drivers to subclass the state structure.
|
|
*
|
|
* Such driver-private properties should really only be implemented for
|
|
* truly hardware/vendor specific state. Instead it is preferred to
|
|
* standardize atomic extension and decode the properties used to expose
|
|
* such an extension in the core.
|
|
*
|
|
* Do not call this function directly, use
|
|
* drm_atomic_crtc_set_property() instead.
|
|
*
|
|
* This callback is optional if the driver does not support any
|
|
* driver-private atomic properties.
|
|
*
|
|
* NOTE:
|
|
*
|
|
* This function is called in the state assembly phase of atomic
|
|
* modesets, which can be aborted for any reason (including on
|
|
* userspace's request to just check whether a configuration would be
|
|
* possible). Drivers MUST NOT touch any persistent state (hardware or
|
|
* software) or data structures except the passed in @state parameter.
|
|
*
|
|
* Also since userspace controls in which order properties are set this
|
|
* function must not do any input validation (since the state update is
|
|
* incomplete and hence likely inconsistent). Instead any such input
|
|
* validation must be done in the various atomic_check callbacks.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 if the property has been found, -EINVAL if the property isn't
|
|
* implemented by the driver (which should never happen, the core only
|
|
* asks for properties attached to this CRTC). No other validation is
|
|
* allowed by the driver. The core already checks that the property
|
|
* value is within the range (integer, valid enum value, ...) the driver
|
|
* set when registering the property.
|
|
*/
|
|
int (*atomic_set_property)(struct drm_crtc *crtc,
|
|
struct drm_crtc_state *state,
|
|
struct drm_property *property,
|
|
uint64_t val);
|
|
/**
|
|
* @atomic_get_property:
|
|
*
|
|
* Reads out the decoded driver-private property. This is used to
|
|
* implement the GETCRTC IOCTL.
|
|
*
|
|
* Do not call this function directly, use
|
|
* drm_atomic_crtc_get_property() instead.
|
|
*
|
|
* This callback is optional if the driver does not support any
|
|
* driver-private atomic properties.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 on success, -EINVAL if the property isn't implemented by the
|
|
* driver (which should never happen, the core only asks for
|
|
* properties attached to this CRTC).
|
|
*/
|
|
int (*atomic_get_property)(struct drm_crtc *crtc,
|
|
const struct drm_crtc_state *state,
|
|
struct drm_property *property,
|
|
uint64_t *val);
|
|
|
|
/**
|
|
* @late_register:
|
|
*
|
|
* This optional hook can be used to register additional userspace
|
|
* interfaces attached to the crtc like debugfs interfaces.
|
|
* It is called late in the driver load sequence from drm_dev_register().
|
|
* Everything added from this callback should be unregistered in
|
|
* the early_unregister callback.
|
|
*
|
|
* Returns:
|
|
*
|
|
* 0 on success, or a negative error code on failure.
|
|
*/
|
|
int (*late_register)(struct drm_crtc *crtc);
|
|
|
|
/**
|
|
* @early_unregister:
|
|
*
|
|
* This optional hook should be used to unregister the additional
|
|
* userspace interfaces attached to the crtc from
|
|
* late_unregister(). It is called from drm_dev_unregister(),
|
|
* early in the driver unload sequence to disable userspace access
|
|
* before data structures are torndown.
|
|
*/
|
|
void (*early_unregister)(struct drm_crtc *crtc);
|
|
};
|
|
|
|
/**
|
|
* struct drm_crtc - central CRTC control structure
|
|
* @dev: parent DRM device
|
|
* @port: OF node used by drm_of_find_possible_crtcs()
|
|
* @head: list management
|
|
* @name: human readable name, can be overwritten by the driver
|
|
* @mutex: per-CRTC locking
|
|
* @base: base KMS object for ID tracking etc.
|
|
* @primary: primary plane for this CRTC
|
|
* @cursor: cursor plane for this CRTC
|
|
* @cursor_x: current x position of the cursor, used for universal cursor planes
|
|
* @cursor_y: current y position of the cursor, used for universal cursor planes
|
|
* @enabled: is this CRTC enabled?
|
|
* @mode: current mode timings
|
|
* @hwmode: mode timings as programmed to hw regs
|
|
* @x: x position on screen
|
|
* @y: y position on screen
|
|
* @funcs: CRTC control functions
|
|
* @gamma_size: size of gamma ramp
|
|
* @gamma_store: gamma ramp values
|
|
* @helper_private: mid-layer private data
|
|
* @properties: property tracking for this CRTC
|
|
*
|
|
* Each CRTC may have one or more connectors associated with it. This structure
|
|
* allows the CRTC to be controlled.
|
|
*/
|
|
struct drm_crtc {
|
|
struct drm_device *dev;
|
|
struct device_node *port;
|
|
struct list_head head;
|
|
|
|
char *name;
|
|
|
|
/**
|
|
* @mutex:
|
|
*
|
|
* This provides a read lock for the overall crtc state (mode, dpms
|
|
* state, ...) and a write lock for everything which can be update
|
|
* without a full modeset (fb, cursor data, crtc properties ...). Full
|
|
* modeset also need to grab dev->mode_config.connection_mutex.
|
|
*/
|
|
struct drm_modeset_lock mutex;
|
|
|
|
struct drm_mode_object base;
|
|
|
|
/* primary and cursor planes for CRTC */
|
|
struct drm_plane *primary;
|
|
struct drm_plane *cursor;
|
|
|
|
/**
|
|
* @index: Position inside the mode_config.list, can be used as an array
|
|
* index. It is invariant over the lifetime of the CRTC.
|
|
*/
|
|
unsigned index;
|
|
|
|
/* position of cursor plane on crtc */
|
|
int cursor_x;
|
|
int cursor_y;
|
|
|
|
bool enabled;
|
|
|
|
/* Requested mode from modesetting. */
|
|
struct drm_display_mode mode;
|
|
|
|
/* Programmed mode in hw, after adjustments for encoders,
|
|
* crtc, panel scaling etc. Needed for timestamping etc.
|
|
*/
|
|
struct drm_display_mode hwmode;
|
|
|
|
int x, y;
|
|
const struct drm_crtc_funcs *funcs;
|
|
|
|
/* Legacy FB CRTC gamma size for reporting to userspace */
|
|
uint32_t gamma_size;
|
|
uint16_t *gamma_store;
|
|
|
|
/* if you are using the helper */
|
|
const struct drm_crtc_helper_funcs *helper_private;
|
|
|
|
struct drm_object_properties properties;
|
|
|
|
/**
|
|
* @state:
|
|
*
|
|
* Current atomic state for this CRTC.
|
|
*/
|
|
struct drm_crtc_state *state;
|
|
|
|
/**
|
|
* @commit_list:
|
|
*
|
|
* List of &drm_crtc_commit structures tracking pending commits.
|
|
* Protected by @commit_lock. This list doesn't hold its own full
|
|
* reference, but burrows it from the ongoing commit. Commit entries
|
|
* must be removed from this list once the commit is fully completed,
|
|
* but before it's correspoding &drm_atomic_state gets destroyed.
|
|
*/
|
|
struct list_head commit_list;
|
|
|
|
/**
|
|
* @commit_lock:
|
|
*
|
|
* Spinlock to protect @commit_list.
|
|
*/
|
|
spinlock_t commit_lock;
|
|
|
|
/**
|
|
* @acquire_ctx:
|
|
*
|
|
* Per-CRTC implicit acquire context used by atomic drivers for legacy
|
|
* IOCTLs, so that atomic drivers can get at the locking acquire
|
|
* context.
|
|
*/
|
|
struct drm_modeset_acquire_ctx *acquire_ctx;
|
|
};
|
|
|
|
/**
|
|
* struct drm_mode_set - new values for a CRTC config change
|
|
* @fb: framebuffer to use for new config
|
|
* @crtc: CRTC whose configuration we're about to change
|
|
* @mode: mode timings to use
|
|
* @x: position of this CRTC relative to @fb
|
|
* @y: position of this CRTC relative to @fb
|
|
* @connectors: array of connectors to drive with this CRTC if possible
|
|
* @num_connectors: size of @connectors array
|
|
*
|
|
* Represents a single crtc the connectors that it drives with what mode
|
|
* and from which framebuffer it scans out from.
|
|
*
|
|
* This is used to set modes.
|
|
*/
|
|
struct drm_mode_set {
|
|
struct drm_framebuffer *fb;
|
|
struct drm_crtc *crtc;
|
|
struct drm_display_mode *mode;
|
|
|
|
uint32_t x;
|
|
uint32_t y;
|
|
|
|
struct drm_connector **connectors;
|
|
size_t num_connectors;
|
|
};
|
|
|
|
/**
|
|
* struct drm_mode_config_funcs - basic driver provided mode setting functions
|
|
*
|
|
* Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
|
|
* involve drivers.
|
|
*/
|
|
struct drm_mode_config_funcs {
|
|
/**
|
|
* @fb_create:
|
|
*
|
|
* Create a new framebuffer object. The core does basic checks on the
|
|
* requested metadata, but most of that is left to the driver. See
|
|
* struct &drm_mode_fb_cmd2 for details.
|
|
*
|
|
* If the parameters are deemed valid and the backing storage objects in
|
|
* the underlying memory manager all exist, then the driver allocates
|
|
* a new &drm_framebuffer structure, subclassed to contain
|
|
* driver-specific information (like the internal native buffer object
|
|
* references). It also needs to fill out all relevant metadata, which
|
|
* should be done by calling drm_helper_mode_fill_fb_struct().
|
|
*
|
|
* The initialization is finalized by calling drm_framebuffer_init(),
|
|
* which registers the framebuffer and makes it accessible to other
|
|
* threads.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* A new framebuffer with an initial reference count of 1 or a negative
|
|
* error code encoded with ERR_PTR().
|
|
*/
|
|
struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
|
|
struct drm_file *file_priv,
|
|
const struct drm_mode_fb_cmd2 *mode_cmd);
|
|
|
|
/**
|
|
* @output_poll_changed:
|
|
*
|
|
* Callback used by helpers to inform the driver of output configuration
|
|
* changes.
|
|
*
|
|
* Drivers implementing fbdev emulation with the helpers can call
|
|
* drm_fb_helper_hotplug_changed from this hook to inform the fbdev
|
|
* helper of output changes.
|
|
*
|
|
* FIXME:
|
|
*
|
|
* Except that there's no vtable for device-level helper callbacks
|
|
* there's no reason this is a core function.
|
|
*/
|
|
void (*output_poll_changed)(struct drm_device *dev);
|
|
|
|
/**
|
|
* @atomic_check:
|
|
*
|
|
* This is the only hook to validate an atomic modeset update. This
|
|
* function must reject any modeset and state changes which the hardware
|
|
* or driver doesn't support. This includes but is of course not limited
|
|
* to:
|
|
*
|
|
* - Checking that the modes, framebuffers, scaling and placement
|
|
* requirements and so on are within the limits of the hardware.
|
|
*
|
|
* - Checking that any hidden shared resources are not oversubscribed.
|
|
* This can be shared PLLs, shared lanes, overall memory bandwidth,
|
|
* display fifo space (where shared between planes or maybe even
|
|
* CRTCs).
|
|
*
|
|
* - Checking that virtualized resources exported to userspace are not
|
|
* oversubscribed. For various reasons it can make sense to expose
|
|
* more planes, crtcs or encoders than which are physically there. One
|
|
* example is dual-pipe operations (which generally should be hidden
|
|
* from userspace if when lockstepped in hardware, exposed otherwise),
|
|
* where a plane might need 1 hardware plane (if it's just on one
|
|
* pipe), 2 hardware planes (when it spans both pipes) or maybe even
|
|
* shared a hardware plane with a 2nd plane (if there's a compatible
|
|
* plane requested on the area handled by the other pipe).
|
|
*
|
|
* - Check that any transitional state is possible and that if
|
|
* requested, the update can indeed be done in the vblank period
|
|
* without temporarily disabling some functions.
|
|
*
|
|
* - Check any other constraints the driver or hardware might have.
|
|
*
|
|
* - This callback also needs to correctly fill out the &drm_crtc_state
|
|
* in this update to make sure that drm_atomic_crtc_needs_modeset()
|
|
* reflects the nature of the possible update and returns true if and
|
|
* only if the update cannot be applied without tearing within one
|
|
* vblank on that CRTC. The core uses that information to reject
|
|
* updates which require a full modeset (i.e. blanking the screen, or
|
|
* at least pausing updates for a substantial amount of time) if
|
|
* userspace has disallowed that in its request.
|
|
*
|
|
* - The driver also does not need to repeat basic input validation
|
|
* like done for the corresponding legacy entry points. The core does
|
|
* that before calling this hook.
|
|
*
|
|
* See the documentation of @atomic_commit for an exhaustive list of
|
|
* error conditions which don't have to be checked at the
|
|
* ->atomic_check() stage?
|
|
*
|
|
* See the documentation for struct &drm_atomic_state for how exactly
|
|
* an atomic modeset update is described.
|
|
*
|
|
* Drivers using the atomic helpers can implement this hook using
|
|
* drm_atomic_helper_check(), or one of the exported sub-functions of
|
|
* it.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 on success or one of the below negative error codes:
|
|
*
|
|
* - -EINVAL, if any of the above constraints are violated.
|
|
*
|
|
* - -EDEADLK, when returned from an attempt to acquire an additional
|
|
* &drm_modeset_lock through drm_modeset_lock().
|
|
*
|
|
* - -ENOMEM, if allocating additional state sub-structures failed due
|
|
* to lack of memory.
|
|
*
|
|
* - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted.
|
|
* This can either be due to a pending signal, or because the driver
|
|
* needs to completely bail out to recover from an exceptional
|
|
* situation like a GPU hang. From a userspace point all errors are
|
|
* treated equally.
|
|
*/
|
|
int (*atomic_check)(struct drm_device *dev,
|
|
struct drm_atomic_state *state);
|
|
|
|
/**
|
|
* @atomic_commit:
|
|
*
|
|
* This is the only hook to commit an atomic modeset update. The core
|
|
* guarantees that @atomic_check has been called successfully before
|
|
* calling this function, and that nothing has been changed in the
|
|
* interim.
|
|
*
|
|
* See the documentation for struct &drm_atomic_state for how exactly
|
|
* an atomic modeset update is described.
|
|
*
|
|
* Drivers using the atomic helpers can implement this hook using
|
|
* drm_atomic_helper_commit(), or one of the exported sub-functions of
|
|
* it.
|
|
*
|
|
* Nonblocking commits (as indicated with the nonblock parameter) must
|
|
* do any preparatory work which might result in an unsuccessful commit
|
|
* in the context of this callback. The only exceptions are hardware
|
|
* errors resulting in -EIO. But even in that case the driver must
|
|
* ensure that the display pipe is at least running, to avoid
|
|
* compositors crashing when pageflips don't work. Anything else,
|
|
* specifically committing the update to the hardware, should be done
|
|
* without blocking the caller. For updates which do not require a
|
|
* modeset this must be guaranteed.
|
|
*
|
|
* The driver must wait for any pending rendering to the new
|
|
* framebuffers to complete before executing the flip. It should also
|
|
* wait for any pending rendering from other drivers if the underlying
|
|
* buffer is a shared dma-buf. Nonblocking commits must not wait for
|
|
* rendering in the context of this callback.
|
|
*
|
|
* An application can request to be notified when the atomic commit has
|
|
* completed. These events are per-CRTC and can be distinguished by the
|
|
* CRTC index supplied in &drm_event to userspace.
|
|
*
|
|
* The drm core will supply a struct &drm_event in the event
|
|
* member of each CRTC's &drm_crtc_state structure. See the
|
|
* documentation for &drm_crtc_state for more details about the precise
|
|
* semantics of this event.
|
|
*
|
|
* NOTE:
|
|
*
|
|
* Drivers are not allowed to shut down any display pipe successfully
|
|
* enabled through an atomic commit on their own. Doing so can result in
|
|
* compositors crashing if a page flip is suddenly rejected because the
|
|
* pipe is off.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* 0 on success or one of the below negative error codes:
|
|
*
|
|
* - -EBUSY, if a nonblocking updated is requested and there is
|
|
* an earlier updated pending. Drivers are allowed to support a queue
|
|
* of outstanding updates, but currently no driver supports that.
|
|
* Note that drivers must wait for preceding updates to complete if a
|
|
* synchronous update is requested, they are not allowed to fail the
|
|
* commit in that case.
|
|
*
|
|
* - -ENOMEM, if the driver failed to allocate memory. Specifically
|
|
* this can happen when trying to pin framebuffers, which must only
|
|
* be done when committing the state.
|
|
*
|
|
* - -ENOSPC, as a refinement of the more generic -ENOMEM to indicate
|
|
* that the driver has run out of vram, iommu space or similar GPU
|
|
* address space needed for framebuffer.
|
|
*
|
|
* - -EIO, if the hardware completely died.
|
|
*
|
|
* - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted.
|
|
* This can either be due to a pending signal, or because the driver
|
|
* needs to completely bail out to recover from an exceptional
|
|
* situation like a GPU hang. From a userspace point of view all errors are
|
|
* treated equally.
|
|
*
|
|
* This list is exhaustive. Specifically this hook is not allowed to
|
|
* return -EINVAL (any invalid requests should be caught in
|
|
* @atomic_check) or -EDEADLK (this function must not acquire
|
|
* additional modeset locks).
|
|
*/
|
|
int (*atomic_commit)(struct drm_device *dev,
|
|
struct drm_atomic_state *state,
|
|
bool nonblock);
|
|
|
|
/**
|
|
* @atomic_state_alloc:
|
|
*
|
|
* This optional hook can be used by drivers that want to subclass struct
|
|
* &drm_atomic_state to be able to track their own driver-private global
|
|
* state easily. If this hook is implemented, drivers must also
|
|
* implement @atomic_state_clear and @atomic_state_free.
|
|
*
|
|
* RETURNS:
|
|
*
|
|
* A new &drm_atomic_state on success or NULL on failure.
|
|
*/
|
|
struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev);
|
|
|
|
/**
|
|
* @atomic_state_clear:
|
|
*
|
|
* This hook must clear any driver private state duplicated into the
|
|
* passed-in &drm_atomic_state. This hook is called when the caller
|
|
* encountered a &drm_modeset_lock deadlock and needs to drop all
|
|
* already acquired locks as part of the deadlock avoidance dance
|
|
* implemented in drm_modeset_lock_backoff().
|
|
*
|
|
* Any duplicated state must be invalidated since a concurrent atomic
|
|
* update might change it, and the drm atomic interfaces always apply
|
|
* updates as relative changes to the current state.
|
|
*
|
|
* Drivers that implement this must call drm_atomic_state_default_clear()
|
|
* to clear common state.
|
|
*/
|
|
void (*atomic_state_clear)(struct drm_atomic_state *state);
|
|
|
|
/**
|
|
* @atomic_state_free:
|
|
*
|
|
* This hook needs driver private resources and the &drm_atomic_state
|
|
* itself. Note that the core first calls drm_atomic_state_clear() to
|
|
* avoid code duplicate between the clear and free hooks.
|
|
*
|
|
* Drivers that implement this must call drm_atomic_state_default_free()
|
|
* to release common resources.
|
|
*/
|
|
void (*atomic_state_free)(struct drm_atomic_state *state);
|
|
};
|
|
|
|
/**
|
|
* struct drm_mode_config - Mode configuration control structure
|
|
* @mutex: mutex protecting KMS related lists and structures
|
|
* @connection_mutex: ww mutex protecting connector state and routing
|
|
* @acquire_ctx: global implicit acquire context used by atomic drivers for
|
|
* legacy IOCTLs
|
|
* @fb_lock: mutex to protect fb state and lists
|
|
* @num_fb: number of fbs available
|
|
* @fb_list: list of framebuffers available
|
|
* @num_encoder: number of encoders on this device
|
|
* @encoder_list: list of encoder objects
|
|
* @num_overlay_plane: number of overlay planes on this device
|
|
* @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
|
|
* @plane_list: list of plane objects
|
|
* @num_crtc: number of CRTCs on this device
|
|
* @crtc_list: list of CRTC objects
|
|
* @property_list: list of property objects
|
|
* @min_width: minimum pixel width on this device
|
|
* @min_height: minimum pixel height on this device
|
|
* @max_width: maximum pixel width on this device
|
|
* @max_height: maximum pixel height on this device
|
|
* @funcs: core driver provided mode setting functions
|
|
* @fb_base: base address of the framebuffer
|
|
* @poll_enabled: track polling support for this device
|
|
* @poll_running: track polling status for this device
|
|
* @delayed_event: track delayed poll uevent deliver for this device
|
|
* @output_poll_work: delayed work for polling in process context
|
|
* @property_blob_list: list of all the blob property objects
|
|
* @blob_lock: mutex for blob property allocation and management
|
|
* @*_property: core property tracking
|
|
* @preferred_depth: preferred RBG pixel depth, used by fb helpers
|
|
* @prefer_shadow: hint to userspace to prefer shadow-fb rendering
|
|
* @cursor_width: hint to userspace for max cursor width
|
|
* @cursor_height: hint to userspace for max cursor height
|
|
* @helper_private: mid-layer private data
|
|
*
|
|
* Core mode resource tracking structure. All CRTC, encoders, and connectors
|
|
* enumerated by the driver are added here, as are global properties. Some
|
|
* global restrictions are also here, e.g. dimension restrictions.
|
|
*/
|
|
struct drm_mode_config {
|
|
struct mutex mutex; /* protects configuration (mode lists etc.) */
|
|
struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
|
|
struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
|
|
|
|
/**
|
|
* @idr_mutex:
|
|
*
|
|
* Mutex for KMS ID allocation and management. Protects both @crtc_idr
|
|
* and @tile_idr.
|
|
*/
|
|
struct mutex idr_mutex;
|
|
|
|
/**
|
|
* @crtc_idr:
|
|
*
|
|
* Main KMS ID tracking object. Use this idr for all IDs, fb, crtc,
|
|
* connector, modes - just makes life easier to have only one.
|
|
*/
|
|
struct idr crtc_idr;
|
|
|
|
/**
|
|
* @tile_idr:
|
|
*
|
|
* Use this idr for allocating new IDs for tiled sinks like use in some
|
|
* high-res DP MST screens.
|
|
*/
|
|
struct idr tile_idr;
|
|
|
|
struct mutex fb_lock; /* proctects global and per-file fb lists */
|
|
int num_fb;
|
|
struct list_head fb_list;
|
|
|
|
/**
|
|
* @num_connector: Number of connectors on this device.
|
|
*/
|
|
int num_connector;
|
|
/**
|
|
* @connector_ida: ID allocator for connector indices.
|
|
*/
|
|
struct ida connector_ida;
|
|
/**
|
|
* @connector_list: List of connector objects.
|
|
*/
|
|
struct list_head connector_list;
|
|
int num_encoder;
|
|
struct list_head encoder_list;
|
|
|
|
/*
|
|
* Track # of overlay planes separately from # of total planes. By
|
|
* default we only advertise overlay planes to userspace; if userspace
|
|
* sets the "universal plane" capability bit, we'll go ahead and
|
|
* expose all planes.
|
|
*/
|
|
int num_overlay_plane;
|
|
int num_total_plane;
|
|
struct list_head plane_list;
|
|
|
|
int num_crtc;
|
|
struct list_head crtc_list;
|
|
|
|
struct list_head property_list;
|
|
|
|
int min_width, min_height;
|
|
int max_width, max_height;
|
|
const struct drm_mode_config_funcs *funcs;
|
|
resource_size_t fb_base;
|
|
|
|
/* output poll support */
|
|
bool poll_enabled;
|
|
bool poll_running;
|
|
bool delayed_event;
|
|
struct delayed_work output_poll_work;
|
|
|
|
struct mutex blob_lock;
|
|
|
|
/* pointers to standard properties */
|
|
struct list_head property_blob_list;
|
|
/**
|
|
* @edid_property: Default connector property to hold the EDID of the
|
|
* currently connected sink, if any.
|
|
*/
|
|
struct drm_property *edid_property;
|
|
/**
|
|
* @dpms_property: Default connector property to control the
|
|
* connector's DPMS state.
|
|
*/
|
|
struct drm_property *dpms_property;
|
|
/**
|
|
* @path_property: Default connector property to hold the DP MST path
|
|
* for the port.
|
|
*/
|
|
struct drm_property *path_property;
|
|
/**
|
|
* @tile_property: Default connector property to store the tile
|
|
* position of a tiled screen, for sinks which need to be driven with
|
|
* multiple CRTCs.
|
|
*/
|
|
struct drm_property *tile_property;
|
|
/**
|
|
* @plane_type_property: Default plane property to differentiate
|
|
* CURSOR, PRIMARY and OVERLAY legacy uses of planes.
|
|
*/
|
|
struct drm_property *plane_type_property;
|
|
/**
|
|
* @rotation_property: Optional property for planes or CRTCs to specifiy
|
|
* rotation.
|
|
*/
|
|
struct drm_property *rotation_property;
|
|
/**
|
|
* @prop_src_x: Default atomic plane property for the plane source
|
|
* position in the connected &drm_framebuffer.
|
|
*/
|
|
struct drm_property *prop_src_x;
|
|
/**
|
|
* @prop_src_y: Default atomic plane property for the plane source
|
|
* position in the connected &drm_framebuffer.
|
|
*/
|
|
struct drm_property *prop_src_y;
|
|
/**
|
|
* @prop_src_w: Default atomic plane property for the plane source
|
|
* position in the connected &drm_framebuffer.
|
|
*/
|
|
struct drm_property *prop_src_w;
|
|
/**
|
|
* @prop_src_h: Default atomic plane property for the plane source
|
|
* position in the connected &drm_framebuffer.
|
|
*/
|
|
struct drm_property *prop_src_h;
|
|
/**
|
|
* @prop_crtc_x: Default atomic plane property for the plane destination
|
|
* position in the &drm_crtc is is being shown on.
|
|
*/
|
|
struct drm_property *prop_crtc_x;
|
|
/**
|
|
* @prop_crtc_y: Default atomic plane property for the plane destination
|
|
* position in the &drm_crtc is is being shown on.
|
|
*/
|
|
struct drm_property *prop_crtc_y;
|
|
/**
|
|
* @prop_crtc_w: Default atomic plane property for the plane destination
|
|
* position in the &drm_crtc is is being shown on.
|
|
*/
|
|
struct drm_property *prop_crtc_w;
|
|
/**
|
|
* @prop_crtc_h: Default atomic plane property for the plane destination
|
|
* position in the &drm_crtc is is being shown on.
|
|
*/
|
|
struct drm_property *prop_crtc_h;
|
|
/**
|
|
* @prop_fb_id: Default atomic plane property to specify the
|
|
* &drm_framebuffer.
|
|
*/
|
|
struct drm_property *prop_fb_id;
|
|
/**
|
|
* @prop_crtc_id: Default atomic plane property to specify the
|
|
* &drm_crtc.
|
|
*/
|
|
struct drm_property *prop_crtc_id;
|
|
/**
|
|
* @prop_active: Default atomic CRTC property to control the active
|
|
* state, which is the simplified implementation for DPMS in atomic
|
|
* drivers.
|
|
*/
|
|
struct drm_property *prop_active;
|
|
/**
|
|
* @prop_mode_id: Default atomic CRTC property to set the mode for a
|
|
* CRTC. A 0 mode implies that the CRTC is entirely disabled - all
|
|
* connectors must be of and active must be set to disabled, too.
|
|
*/
|
|
struct drm_property *prop_mode_id;
|
|
|
|
/**
|
|
* @dvi_i_subconnector_property: Optional DVI-I property to
|
|
* differentiate between analog or digital mode.
|
|
*/
|
|
struct drm_property *dvi_i_subconnector_property;
|
|
/**
|
|
* @dvi_i_select_subconnector_property: Optional DVI-I property to
|
|
* select between analog or digital mode.
|
|
*/
|
|
struct drm_property *dvi_i_select_subconnector_property;
|
|
|
|
/**
|
|
* @tv_subconnector_property: Optional TV property to differentiate
|
|
* between different TV connector types.
|
|
*/
|
|
struct drm_property *tv_subconnector_property;
|
|
/**
|
|
* @tv_select_subconnector_property: Optional TV property to select
|
|
* between different TV connector types.
|
|
*/
|
|
struct drm_property *tv_select_subconnector_property;
|
|
/**
|
|
* @tv_mode_property: Optional TV property to select
|
|
* the output TV mode.
|
|
*/
|
|
struct drm_property *tv_mode_property;
|
|
/**
|
|
* @tv_left_margin_property: Optional TV property to set the left
|
|
* margin.
|
|
*/
|
|
struct drm_property *tv_left_margin_property;
|
|
/**
|
|
* @tv_right_margin_property: Optional TV property to set the right
|
|
* margin.
|
|
*/
|
|
struct drm_property *tv_right_margin_property;
|
|
/**
|
|
* @tv_top_margin_property: Optional TV property to set the right
|
|
* margin.
|
|
*/
|
|
struct drm_property *tv_top_margin_property;
|
|
/**
|
|
* @tv_bottom_margin_property: Optional TV property to set the right
|
|
* margin.
|
|
*/
|
|
struct drm_property *tv_bottom_margin_property;
|
|
/**
|
|
* @tv_brightness_property: Optional TV property to set the
|
|
* brightness.
|
|
*/
|
|
struct drm_property *tv_brightness_property;
|
|
/**
|
|
* @tv_contrast_property: Optional TV property to set the
|
|
* contrast.
|
|
*/
|
|
struct drm_property *tv_contrast_property;
|
|
/**
|
|
* @tv_flicker_reduction_property: Optional TV property to control the
|
|
* flicker reduction mode.
|
|
*/
|
|
struct drm_property *tv_flicker_reduction_property;
|
|
/**
|
|
* @tv_overscan_property: Optional TV property to control the overscan
|
|
* setting.
|
|
*/
|
|
struct drm_property *tv_overscan_property;
|
|
/**
|
|
* @tv_saturation_property: Optional TV property to set the
|
|
* saturation.
|
|
*/
|
|
struct drm_property *tv_saturation_property;
|
|
/**
|
|
* @tv_hue_property: Optional TV property to set the hue.
|
|
*/
|
|
struct drm_property *tv_hue_property;
|
|
|
|
/**
|
|
* @scaling_mode_property: Optional connector property to control the
|
|
* upscaling, mostly used for built-in panels.
|
|
*/
|
|
struct drm_property *scaling_mode_property;
|
|
/**
|
|
* @aspect_ratio_property: Optional connector property to control the
|
|
* HDMI infoframe aspect ratio setting.
|
|
*/
|
|
struct drm_property *aspect_ratio_property;
|
|
/**
|
|
* @degamma_lut_property: Optional CRTC property to set the LUT used to
|
|
* convert the framebuffer's colors to linear gamma.
|
|
*/
|
|
struct drm_property *degamma_lut_property;
|
|
/**
|
|
* @degamma_lut_size_property: Optional CRTC property for the size of
|
|
* the degamma LUT as supported by the driver (read-only).
|
|
*/
|
|
struct drm_property *degamma_lut_size_property;
|
|
/**
|
|
* @ctm_property: Optional CRTC property to set the
|
|
* matrix used to convert colors after the lookup in the
|
|
* degamma LUT.
|
|
*/
|
|
struct drm_property *ctm_property;
|
|
/**
|
|
* @gamma_lut_property: Optional CRTC property to set the LUT used to
|
|
* convert the colors, after the CTM matrix, to the gamma space of the
|
|
* connected screen.
|
|
*/
|
|
struct drm_property *gamma_lut_property;
|
|
/**
|
|
* @gamma_lut_size_property: Optional CRTC property for the size of the
|
|
* gamma LUT as supported by the driver (read-only).
|
|
*/
|
|
struct drm_property *gamma_lut_size_property;
|
|
|
|
/**
|
|
* @suggested_x_property: Optional connector property with a hint for
|
|
* the position of the output on the host's screen.
|
|
*/
|
|
struct drm_property *suggested_x_property;
|
|
/**
|
|
* @suggested_y_property: Optional connector property with a hint for
|
|
* the position of the output on the host's screen.
|
|
*/
|
|
struct drm_property *suggested_y_property;
|
|
|
|
/* dumb ioctl parameters */
|
|
uint32_t preferred_depth, prefer_shadow;
|
|
|
|
/**
|
|
* @async_page_flip: Does this device support async flips on the primary
|
|
* plane?
|
|
*/
|
|
bool async_page_flip;
|
|
|
|
/**
|
|
* @allow_fb_modifiers:
|
|
*
|
|
* Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call.
|
|
*/
|
|
bool allow_fb_modifiers;
|
|
|
|
/* cursor size */
|
|
uint32_t cursor_width, cursor_height;
|
|
|
|
struct drm_mode_config_helper_funcs *helper_private;
|
|
};
|
|
|
|
#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
|
|
|
|
extern __printf(6, 7)
|
|
int drm_crtc_init_with_planes(struct drm_device *dev,
|
|
struct drm_crtc *crtc,
|
|
struct drm_plane *primary,
|
|
struct drm_plane *cursor,
|
|
const struct drm_crtc_funcs *funcs,
|
|
const char *name, ...);
|
|
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
|
|
|
|
/**
|
|
* drm_crtc_index - find the index of a registered CRTC
|
|
* @crtc: CRTC to find index for
|
|
*
|
|
* Given a registered CRTC, return the index of that CRTC within a DRM
|
|
* device's list of CRTCs.
|
|
*/
|
|
static inline unsigned int drm_crtc_index(const struct drm_crtc *crtc)
|
|
{
|
|
return crtc->index;
|
|
}
|
|
|
|
/**
|
|
* drm_crtc_mask - find the mask of a registered CRTC
|
|
* @crtc: CRTC to find mask for
|
|
*
|
|
* Given a registered CRTC, return the mask bit of that CRTC for an
|
|
* encoder's possible_crtcs field.
|
|
*/
|
|
static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
|
|
{
|
|
return 1 << drm_crtc_index(crtc);
|
|
}
|
|
|
|
extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
|
|
int *hdisplay, int *vdisplay);
|
|
extern int drm_crtc_force_disable(struct drm_crtc *crtc);
|
|
extern int drm_crtc_force_disable_all(struct drm_device *dev);
|
|
|
|
extern void drm_mode_config_init(struct drm_device *dev);
|
|
extern void drm_mode_config_reset(struct drm_device *dev);
|
|
extern void drm_mode_config_cleanup(struct drm_device *dev);
|
|
|
|
extern int drm_mode_set_config_internal(struct drm_mode_set *set);
|
|
|
|
extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
|
|
char topology[8]);
|
|
extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
|
|
char topology[8]);
|
|
extern void drm_mode_put_tile_group(struct drm_device *dev,
|
|
struct drm_tile_group *tg);
|
|
|
|
/* Helpers */
|
|
static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
|
|
uint32_t id)
|
|
{
|
|
struct drm_mode_object *mo;
|
|
mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
|
|
return mo ? obj_to_crtc(mo) : NULL;
|
|
}
|
|
|
|
#define drm_for_each_crtc(crtc, dev) \
|
|
list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
|
|
|
|
static inline void
|
|
assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config)
|
|
{
|
|
/*
|
|
* The connector hotadd/remove code currently grabs both locks when
|
|
* updating lists. Hence readers need only hold either of them to be
|
|
* safe and the check amounts to
|
|
*
|
|
* WARN_ON(not_holding(A) && not_holding(B)).
|
|
*/
|
|
WARN_ON(!mutex_is_locked(&mode_config->mutex) &&
|
|
!drm_modeset_is_locked(&mode_config->connection_mutex));
|
|
}
|
|
|
|
#endif /* __DRM_CRTC_H__ */
|