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/*
* Copyright (c) 2015-2017 The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SDE_CRTC_H_
#define _SDE_CRTC_H_
#include "drm_crtc.h"
#include "msm_prop.h"
#include "sde_fence.h"
#include "sde_kms.h"
#include "sde_core_perf.h"
#define SDE_CRTC_NAME_SIZE 12
/* define the maximum number of in-flight frame events */
#define SDE_CRTC_FRAME_EVENT_SIZE 2
/**
* struct sde_crtc_mixer: stores the map for each virtual pipeline in the CRTC
* @hw_lm: LM HW Driver context
* @hw_ctl: CTL Path HW driver context
* @hw_dspp: DSPP HW driver context
* @encoder: Encoder attached to this lm & ctl
* @mixer_op_mode: mixer blending operation mode
* @flush_mask: mixer flush mask for ctl, mixer and pipe
*/
struct sde_crtc_mixer {
struct sde_hw_mixer *hw_lm;
struct sde_hw_ctl *hw_ctl;
struct sde_hw_dspp *hw_dspp;
struct drm_encoder *encoder;
u32 mixer_op_mode;
u32 flush_mask;
};
/**
* struct sde_crtc_frame_event: stores crtc frame event for crtc processing
* @work: base work structure
* @crtc: Pointer to crtc handling this event
* @list: event list
* @ts: timestamp at queue entry
* @event: event identifier
*/
struct sde_crtc_frame_event {
struct kthread_work work;
struct drm_crtc *crtc;
struct list_head list;
ktime_t ts;
u32 event;
};
/**
* struct sde_crtc - virtualized CRTC data structure
* @base : Base drm crtc structure
* @name : ASCII description of this crtc
* @num_ctls : Number of ctl paths in use
* @num_mixers : Number of mixers in use
* @mixer : List of active mixers
* @event : Pointer to last received drm vblank event. If there is a
* pending vblank event, this will be non-null.
* @vsync_count : Running count of received vsync events
* @drm_requested_vblank : Whether vblanks have been enabled in the encoder
* @property_info : Opaque structure for generic property support
* @property_defaults : Array of default values for generic property support
* @stage_cfg : H/w mixer stage configuration
* @debugfs_root : Parent of debugfs node
* @vblank_cb_count : count of vblank callback since last reset
* @vblank_cb_time : ktime at vblank count reset
* @vblank_requested : whether the user has requested vblank events
* @suspend : whether or not a suspend operation is in progress
* @enabled : whether the SDE CRTC is currently enabled. updated in the
* commit-thread, not state-swap time which is earlier, so
* safe to make decisions on during VBLANK on/off work
* @feature_list : list of color processing features supported on a crtc
* @active_list : list of color processing features are active
* @dirty_list : list of color processing features are dirty
* @crtc_lock : crtc lock around create, destroy and access.
* @frame_pending : Whether or not an update is pending
* @frame_events : static allocation of in-flight frame events
* @frame_event_list : available frame event list
* @pending : Whether any page-flip events are pending signal
* @spin_lock : spin lock for frame event, transaction status, etc...
* @cur_perf : current performance committed to clock/bandwidth driver
* @new_perf : new performance committed to clock/bandwidth driver
*/
struct sde_crtc {
struct drm_crtc base;
char name[SDE_CRTC_NAME_SIZE];
/* HW Resources reserved for the crtc */
u32 num_ctls;
u32 num_mixers;
struct sde_crtc_mixer mixers[CRTC_DUAL_MIXERS];
struct drm_pending_vblank_event *event;
u32 vsync_count;
struct msm_property_info property_info;
struct msm_property_data property_data[CRTC_PROP_COUNT];
struct drm_property_blob *blob_info;
/* output fence support */
struct sde_fence output_fence;
atomic_t pending;
struct sde_hw_stage_cfg stage_cfg;
struct dentry *debugfs_root;
u32 vblank_cb_count;
ktime_t vblank_cb_time;
bool vblank_requested;
bool suspend;
bool enabled;
struct list_head feature_list;
struct list_head active_list;
struct list_head dirty_list;
struct mutex crtc_lock;
atomic_t frame_pending;
struct sde_crtc_frame_event frame_events[SDE_CRTC_FRAME_EVENT_SIZE];
struct list_head frame_event_list;
spinlock_t spin_lock;
struct sde_core_perf_params cur_perf;
struct sde_core_perf_params new_perf;
};
#define to_sde_crtc(x) container_of(x, struct sde_crtc, base)
/**
* struct sde_crtc_state - sde container for atomic crtc state
* @base: Base drm crtc state structure
* @connectors : Currently associated drm connectors
* @num_connectors: Number of associated drm connectors
* @is_rt : Whether or not the current commit contains RT connectors
* @intf_mode : Interface mode of the primary connector
* @property_values: Current crtc property values
* @input_fence_timeout_ns : Cached input fence timeout, in ns
* @property_blobs: Reference pointers for blob properties
* @new_perf: new performance state being requested
* @is_shared: connector is shared
* @shared_roi: roi of the shared display
*/
struct sde_crtc_state {
struct drm_crtc_state base;
struct drm_connector *connectors[MAX_CONNECTORS];
int num_connectors;
bool is_rt;
enum sde_intf_mode intf_mode;
uint64_t property_values[CRTC_PROP_COUNT];
uint64_t input_fence_timeout_ns;
struct drm_property_blob *property_blobs[CRTC_PROP_COUNT];
struct sde_core_perf_params new_perf;
bool is_shared;
struct sde_rect shared_roi;
};
#define to_sde_crtc_state(x) \
container_of(x, struct sde_crtc_state, base)
/**
* sde_crtc_get_property - query integer value of crtc property
* @S: Pointer to crtc state
* @X: Property index, from enum msm_mdp_crtc_property
* Returns: Integer value of requested property
*/
#define sde_crtc_get_property(S, X) \
((S) && ((X) < CRTC_PROP_COUNT) ? ((S)->property_values[(X)]) : 0)
static inline int sde_crtc_mixer_width(struct sde_crtc *sde_crtc,
struct drm_display_mode *mode)
{
if (!sde_crtc || !mode)
return 0;
return sde_crtc->num_mixers == CRTC_DUAL_MIXERS ?
mode->hdisplay / CRTC_DUAL_MIXERS : mode->hdisplay;
}
static inline uint32_t get_crtc_split_width(struct drm_crtc *crtc)
{
struct drm_display_mode *mode;
struct sde_crtc *sde_crtc;
if (!crtc)
return 0;
sde_crtc = to_sde_crtc(crtc);
mode = &crtc->state->adjusted_mode;
return sde_crtc_mixer_width(sde_crtc, mode);
}
/**
* sde_crtc_vblank - enable or disable vblanks for this crtc
* @crtc: Pointer to drm crtc object
* @en: true to enable vblanks, false to disable
*/
int sde_crtc_vblank(struct drm_crtc *crtc, bool en);
/**
* sde_crtc_commit_kickoff - trigger kickoff of the commit for this crtc
* @crtc: Pointer to drm crtc object
*/
void sde_crtc_commit_kickoff(struct drm_crtc *crtc);
/**
* sde_crtc_prepare_commit - callback to prepare for output fences
* @crtc: Pointer to drm crtc object
* @old_state: Pointer to drm crtc old state object
*/
void sde_crtc_prepare_commit(struct drm_crtc *crtc,
struct drm_crtc_state *old_state);
/**
* sde_crtc_complete_commit - callback signalling completion of current commit
* @crtc: Pointer to drm crtc object
* @old_state: Pointer to drm crtc old state object
*/
void sde_crtc_complete_commit(struct drm_crtc *crtc,
struct drm_crtc_state *old_state);
/**
* sde_crtc_init - create a new crtc object
* @dev: sde device
* @plane: base plane
* @Return: new crtc object or error
*/
struct drm_crtc *sde_crtc_init(struct drm_device *dev, struct drm_plane *plane);
/**
* sde_crtc_cancel_pending_flip - complete flip for clients on lastclose
* @crtc: Pointer to drm crtc object
* @file: client to cancel's file handle
*/
void sde_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file);
/**
* sde_crtc_is_rt - query whether real time connectors are present on the crtc
* @crtc: Pointer to drm crtc structure
* Returns: True if a connector is present with real time constraints
*/
bool sde_crtc_is_rt(struct drm_crtc *crtc);
/**
* sde_crtc_get_intf_mode - get primary interface mode of the given crtc
* @crtc: Pointert to crtc
*/
enum sde_intf_mode sde_crtc_get_intf_mode(struct drm_crtc *crtc);
/**
* sde_core_perf_crtc_is_wb - check if writeback is primary output of this crtc
* @crtc: Pointer to crtc
*/
static inline bool sde_crtc_is_wb(struct drm_crtc *crtc)
{
struct sde_crtc_state *cstate =
crtc ? to_sde_crtc_state(crtc->state) : NULL;
return cstate ? (cstate->intf_mode == INTF_MODE_WB_LINE) : false;
}
/**
* sde_crtc_is_nrt - check if primary output of this crtc is non-realtime client
* @crtc: Pointer to crtc
*/
static inline bool sde_crtc_is_nrt(struct drm_crtc *crtc)
{
return sde_crtc_is_wb(crtc);
}
/**
* sde_crtc_is_enabled - check if sde crtc is enabled or not
* @crtc: Pointer to crtc
*/
static inline bool sde_crtc_is_enabled(struct drm_crtc *crtc)
{
return crtc ? crtc->enabled : false;
}
/**
* sde_crtc_update_blob_property - update blob property of a given crtc
* @crtc: Pointer to crtc
* @key: Pointer to key string
* @value: Signed 32 bit integer value
*/
void sde_crtc_update_blob_property(struct drm_crtc *crtc,
const char *key,
int32_t value);
#endif /* _SDE_CRTC_H_ */
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