b837aa4c77
On composer kill event, drm lastclose occurs during which suspend commit gets triggered on primary. If secondary display is stuck in continuous splash, then we do a early return without triggering this suspend commit. On composer start, userspace waits for power on event, but the drm_driver has never entered suspend state, so power on event is never sent to userspace. This causes HWC deadlock side effect and the current change triggers null_commit on secondary display and then issues a suspend commit on both the displays to avoid this deadlock issue. Change-Id: I126f43ba3dd2c3bfa83346e8fd4678f35527893d Signed-off-by: Jayaprakash Madisetty <quic_jmadiset@quicinc.com> Signed-off-by: Veera Sundaram Sankaran <quic_veeras@quicinc.com>
319 righe
9.9 KiB
C
319 righe
9.9 KiB
C
/*
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* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
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* Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MSM_KMS_H__
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#define __MSM_KMS_H__
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#include <linux/clk.h>
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#include <linux/regulator/consumer.h>
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#include "msm_drv.h"
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#define MAX_PLANE 4
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/**
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* Device Private DRM Mode Flags
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* drm_mode->private_flags
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*/
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/* Connector has interpreted seamless transition request as dynamic fps */
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#define MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS (1<<0)
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/* Transition to new mode requires a wait-for-vblank before the modeset */
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#define MSM_MODE_FLAG_VBLANK_PRE_MODESET (1<<1)
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/* Request to switch the connector mode */
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#define MSM_MODE_FLAG_SEAMLESS_DMS (1<<2)
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/* Request to switch the fps */
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#define MSM_MODE_FLAG_SEAMLESS_VRR (1<<3)
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/* Request to switch the bit clk */
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#define MSM_MODE_FLAG_SEAMLESS_DYN_CLK (1<<4)
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/* Request to make the seamless switch */
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#define DRM_MODE_FLAG_SEAMLESS (1<<5)
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/* Request to switch the panel mode to video */
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#define MSM_MODE_FLAG_SEAMLESS_POMS_VID (1<<6)
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/* Request to switch the panel mode to command */
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#define MSM_MODE_FLAG_SEAMLESS_POMS_CMD (1<<7)
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/* As there are different display controller blocks depending on the
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* snapdragon version, the kms support is split out and the appropriate
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* implementation is loaded at runtime. The kms module is responsible
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* for constructing the appropriate planes/crtcs/encoders/connectors.
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*/
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struct msm_kms_funcs {
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/* hw initialization: */
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int (*hw_init)(struct msm_kms *kms);
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int (*postinit)(struct msm_kms *kms);
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/* irq handling: */
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void (*irq_preinstall)(struct msm_kms *kms);
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int (*irq_postinstall)(struct msm_kms *kms);
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void (*irq_uninstall)(struct msm_kms *kms);
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irqreturn_t (*irq)(struct msm_kms *kms);
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/* modeset, bracketing atomic_commit(): */
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void (*prepare_fence)(struct msm_kms *kms,
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struct drm_atomic_state *state);
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void (*prepare_commit)(struct msm_kms *kms,
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struct drm_atomic_state *state);
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void (*commit)(struct msm_kms *kms, struct drm_atomic_state *state);
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void (*complete_commit)(struct msm_kms *kms,
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struct drm_atomic_state *state);
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struct msm_display_mode *(*get_msm_mode)(
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struct drm_connector_state *c_state);
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/* functions to wait for atomic commit completed on each CRTC */
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void (*wait_for_crtc_commit_done)(struct msm_kms *kms,
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struct drm_crtc *crtc);
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/* function pointer to wait for pixel transfer to panel to complete*/
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void (*wait_for_tx_complete)(struct msm_kms *kms,
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struct drm_crtc *crtc);
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/* get msm_format w/ optional format modifiers from drm_mode_fb_cmd2 */
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const struct msm_format *(*get_format)(struct msm_kms *kms,
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const uint32_t format,
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const uint64_t modifier);
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/* do format checking on format modified through fb_cmd2 modifiers */
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int (*check_modified_format)(const struct msm_kms *kms,
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const struct msm_format *msm_fmt,
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const struct drm_mode_fb_cmd2 *cmd,
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struct drm_gem_object **bos);
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/* perform complete atomic check of given atomic state */
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int (*atomic_check)(struct msm_kms *kms,
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struct drm_atomic_state *state);
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/* misc: */
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long (*round_pixclk)(struct msm_kms *kms, unsigned long rate,
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struct drm_encoder *encoder);
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int (*set_split_display)(struct msm_kms *kms,
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struct drm_encoder *encoder,
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struct drm_encoder *slave_encoder,
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bool is_cmd_mode);
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void (*postopen)(struct msm_kms *kms, struct drm_file *file);
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void (*preclose)(struct msm_kms *kms, struct drm_file *file);
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void (*postclose)(struct msm_kms *kms, struct drm_file *file);
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void (*lastclose)(struct msm_kms *kms);
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int (*register_events)(struct msm_kms *kms,
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struct drm_mode_object *obj, u32 event, bool en);
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void (*set_encoder_mode)(struct msm_kms *kms,
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struct drm_encoder *encoder,
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bool cmd_mode);
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void (*display_early_wakeup)(struct drm_device *dev,
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const int32_t connector_id);
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/* pm suspend/resume hooks */
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int (*pm_suspend)(struct device *dev);
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int (*pm_resume)(struct device *dev);
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/* cleanup: */
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void (*destroy)(struct msm_kms *kms);
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/* get address space */
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struct msm_gem_address_space *(*get_address_space)(
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struct msm_kms *kms,
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unsigned int domain);
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struct device *(*get_address_space_device)(
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struct msm_kms *kms,
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unsigned int domain);
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#if IS_ENABLED(CONFIG_DEBUG_FS)
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/* debugfs: */
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int (*debugfs_init)(struct msm_kms *kms, struct drm_minor *minor);
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#endif /* CONFIG_DEBUG_FS */
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/* destroys debugfs */
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void (*debugfs_destroy)(struct msm_kms *kms);
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/* handle continuous splash */
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int (*cont_splash_config)(struct msm_kms *kms,
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struct drm_atomic_state *state);
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/* check for continuous splash status */
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bool (*check_for_splash)(struct msm_kms *kms);
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/*trigger null flush if stuck in cont splash*/
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int (*trigger_null_flush)(struct msm_kms *kms);
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/* topology lm information */
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int (*get_mixer_count)(const struct msm_kms *kms,
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const struct drm_display_mode *mode,
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const struct msm_resource_caps_info *res, u32 *num_lm);
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/* topology dsc information */
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int (*get_dsc_count)(const struct msm_kms *kms,
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u32 hdisplay, u32 *num_dsc);
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};
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struct msm_kms {
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const struct msm_kms_funcs *funcs;
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/* irq number to be passed on to msm_irq_install */
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int irq;
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/* mapper-id used to request GEM buffer mapped for scanout: */
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struct msm_gem_address_space *aspace;
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/* DRM client used for lastclose cleanup */
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struct drm_client_dev client;
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};
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/**
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* Subclass of drm_atomic_state, to allow kms backend to have driver
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* private global state. The kms backend can do whatever it wants
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* with the ->state ptr. On ->atomic_state_clear() the ->state ptr
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* is kfree'd and set back to NULL.
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*/
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struct msm_kms_state {
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struct drm_atomic_state base;
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void *state;
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};
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#define to_kms_state(x) container_of(x, struct msm_kms_state, base)
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static inline void msm_kms_init(struct msm_kms *kms,
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const struct msm_kms_funcs *funcs)
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{
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kms->funcs = funcs;
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}
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#if IS_ENABLED(CONFIG_DRM_MSM_MDP4)
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struct msm_kms *mdp4_kms_init(struct drm_device *dev);
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#else
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static inline
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struct msm_kms *mdp4_kms_init(struct drm_device *dev) { return NULL; };
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#endif /* CONFIG_DRM_MSM_MDP4 */
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#if IS_ENABLED(CONFIG_DRM_MSM_MDP5)
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struct msm_kms *mdp5_kms_init(struct drm_device *dev);
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int msm_mdss_init(struct drm_device *dev);
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void msm_mdss_destroy(struct drm_device *dev);
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struct msm_kms *mdp5_kms_init(struct drm_device *dev);
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int msm_mdss_enable(struct msm_mdss *mdss);
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int msm_mdss_disable(struct msm_mdss *mdss);
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#else
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static inline int msm_mdss_init(struct drm_device *dev)
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{
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return 0;
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}
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static inline void msm_mdss_destroy(struct drm_device *dev)
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{
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}
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static inline struct msm_kms *mdp5_kms_init(struct drm_device *dev)
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{
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return NULL;
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}
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static inline int msm_mdss_enable(struct msm_mdss *mdss)
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{
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return 0;
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}
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static inline int msm_mdss_disable(struct msm_mdss *mdss)
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{
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return 0;
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}
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#endif /* CONFIG_DRM_MSM_MDP5 */
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struct msm_kms *sde_kms_init(struct drm_device *dev);
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/**
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* Mode Set Utility Functions
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*/
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static inline bool msm_is_mode_seamless(const struct msm_display_mode *mode)
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{
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return (mode->private_flags & DRM_MODE_FLAG_SEAMLESS);
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}
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static inline bool msm_is_mode_seamless_dms(const struct msm_display_mode *mode)
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{
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return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DMS)
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: false;
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}
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static inline bool msm_is_mode_dynamic_fps(const struct msm_display_mode *mode)
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{
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return ((mode->private_flags & DRM_MODE_FLAG_SEAMLESS) &&
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(mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS));
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}
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static inline bool msm_is_mode_seamless_vrr(const struct msm_display_mode *mode)
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{
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return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_VRR)
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: false;
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}
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static inline bool msm_is_mode_seamless_poms_to_vid(
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const struct msm_display_mode *mode)
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{
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return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_POMS_VID)
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: false;
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}
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static inline bool msm_is_mode_seamless_poms_to_cmd(
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const struct msm_display_mode *mode)
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{
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return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_POMS_CMD)
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: false;
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}
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static inline bool msm_is_mode_seamless_poms(
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const struct msm_display_mode *mode)
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{
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return (msm_is_mode_seamless_poms_to_vid(mode) ||
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msm_is_mode_seamless_poms_to_cmd(mode));
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}
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static inline bool msm_is_mode_seamless_dyn_clk(
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const struct msm_display_mode *mode)
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{
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return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DYN_CLK)
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: false;
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}
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static inline bool msm_needs_vblank_pre_modeset(
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const struct msm_display_mode *mode)
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{
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return (mode->private_flags & MSM_MODE_FLAG_VBLANK_PRE_MODESET);
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}
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static inline bool msm_is_private_mode_changed(
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struct drm_connector_state *conn_state)
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{
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struct msm_display_mode *msm_mode = NULL;
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struct msm_drm_private *priv = NULL;
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struct msm_kms *kms;
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if (!conn_state || !conn_state->connector || !conn_state->connector->dev)
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return false;
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priv = conn_state->connector->dev->dev_private;
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if (!priv)
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return false;
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kms = priv->kms;
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if (!kms || !kms->funcs->get_msm_mode)
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return false;
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msm_mode = kms->funcs->get_msm_mode(conn_state);
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if (!msm_mode)
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return false;
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if (msm_is_mode_seamless_poms(msm_mode))
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return true;
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if (msm_is_mode_seamless_dyn_clk(msm_mode))
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return true;
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if (msm_is_mode_seamless_dms(msm_mode))
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return true;
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return false;
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}
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static inline bool msm_atomic_needs_modeset(struct drm_crtc_state *state,
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struct drm_connector_state *conn_state)
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{
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if (drm_atomic_crtc_needs_modeset(state))
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return true;
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if (msm_is_private_mode_changed(conn_state))
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return true;
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return false;
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}
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#endif /* __MSM_KMS_H__ */
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