blob: ac269a6802df2caf931147771ee54955b9d67bb7 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-only */
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <>
#ifndef __MDP5_KMS_H__
#define __MDP5_KMS_H__
#include "msm_drv.h"
#include "msm_kms.h"
#include "disp/mdp_kms.h"
#include "mdp5_cfg.h" /* must be included before mdp5.xml.h */
#include "mdp5.xml.h"
#include "mdp5_pipe.h"
#include "mdp5_mixer.h"
#include "mdp5_ctl.h"
#include "mdp5_smp.h"
struct mdp5_kms {
struct mdp_kms base;
struct drm_device *dev;
struct platform_device *pdev;
unsigned num_hwpipes;
struct mdp5_hw_pipe *hwpipes[SSPP_MAX];
unsigned num_hwmixers;
struct mdp5_hw_mixer *hwmixers[8];
unsigned num_intfs;
struct mdp5_interface *intfs[5];
struct mdp5_cfg_handler *cfg;
uint32_t caps; /* MDP capabilities (MDP_CAP_XXX bits) */
* Global private object state, Do not access directly, use
* mdp5_global_get_state()
struct drm_modeset_lock glob_state_lock;
struct drm_private_obj glob_state;
struct mdp5_smp *smp;
struct mdp5_ctl_manager *ctlm;
/* io/register spaces: */
void __iomem *mmio;
struct clk *axi_clk;
struct clk *ahb_clk;
struct clk *core_clk;
struct clk *lut_clk;
struct clk *tbu_clk;
struct clk *tbu_rt_clk;
struct clk *vsync_clk;
* lock to protect access to global resources: ie., following register:
spinlock_t resource_lock;
bool rpm_enabled;
struct mdp_irq error_handler;
int enable_count;
#define to_mdp5_kms(x) container_of(x, struct mdp5_kms, base)
/* Global private object state for tracking resources that are shared across
* multiple kms objects (planes/crtcs/etc).
#define to_mdp5_global_state(x) container_of(x, struct mdp5_global_state, base)
struct mdp5_global_state {
struct drm_private_state base;
struct drm_atomic_state *state;
struct mdp5_kms *mdp5_kms;
struct mdp5_hw_pipe_state hwpipe;
struct mdp5_hw_mixer_state hwmixer;
struct mdp5_smp_state smp;
struct mdp5_global_state * mdp5_get_existing_global_state(struct mdp5_kms *mdp5_kms);
struct mdp5_global_state *__must_check mdp5_get_global_state(struct drm_atomic_state *s);
/* Atomic plane state. Subclasses the base drm_plane_state in order to
* track assigned hwpipe and hw specific state.
struct mdp5_plane_state {
struct drm_plane_state base;
struct mdp5_hw_pipe *hwpipe;
struct mdp5_hw_pipe *r_hwpipe; /* right hwpipe */
/* assigned by crtc blender */
enum mdp_mixer_stage_id stage;
#define to_mdp5_plane_state(x) \
container_of(x, struct mdp5_plane_state, base)
struct mdp5_pipeline {
struct mdp5_interface *intf;
struct mdp5_hw_mixer *mixer;
struct mdp5_hw_mixer *r_mixer; /* right mixer */
struct mdp5_crtc_state {
struct drm_crtc_state base;
struct mdp5_ctl *ctl;
struct mdp5_pipeline pipeline;
/* these are derivatives of intf/mixer state in mdp5_pipeline */
u32 vblank_irqmask;
u32 err_irqmask;
u32 pp_done_irqmask;
bool cmd_mode;
/* should we not write CTL[n].START register on flush? If the
* encoder has changed this is set to true, since encoder->enable()
* is called after crtc state is committed, but we only want to
* write the CTL[n].START register once. This lets us defer
* writing CTL[n].START until encoder->enable()
bool defer_start;
#define to_mdp5_crtc_state(x) \
container_of(x, struct mdp5_crtc_state, base)
enum mdp5_intf_mode {
/* Modes used for DSI interface (INTF_DSI type): */
/* Modes used for WB interface (INTF_WB type): */
struct mdp5_interface {
int idx;
int num; /* display interface number */
enum mdp5_intf_type type;
enum mdp5_intf_mode mode;
struct mdp5_encoder {
struct drm_encoder base;
spinlock_t intf_lock; /* protect REG_MDP5_INTF_* registers */
bool enabled;
uint32_t bsc;
struct mdp5_interface *intf;
struct mdp5_ctl *ctl;
#define to_mdp5_encoder(x) container_of(x, struct mdp5_encoder, base)
static inline void mdp5_write(struct mdp5_kms *mdp5_kms, u32 reg, u32 data)
WARN_ON(mdp5_kms->enable_count <= 0);
msm_writel(data, mdp5_kms->mmio + reg);
static inline u32 mdp5_read(struct mdp5_kms *mdp5_kms, u32 reg)
WARN_ON(mdp5_kms->enable_count <= 0);
return msm_readl(mdp5_kms->mmio + reg);
static inline const char *stage2name(enum mdp_mixer_stage_id stage)
static const char *names[] = {
#define NAME(n) [n] = #n
#undef NAME
return names[stage];
static inline const char *pipe2name(enum mdp5_pipe pipe)
static const char *names[] = {
#define NAME(n) [SSPP_ ## n] = #n
#undef NAME
return names[pipe];
static inline int pipe2nclients(enum mdp5_pipe pipe)
switch (pipe) {
case SSPP_RGB0:
case SSPP_RGB1:
case SSPP_RGB2:
case SSPP_RGB3:
return 1;
return 3;
static inline uint32_t intf2err(int intf_num)
switch (intf_num) {
case 0: return MDP5_IRQ_INTF0_UNDER_RUN;
case 1: return MDP5_IRQ_INTF1_UNDER_RUN;
case 2: return MDP5_IRQ_INTF2_UNDER_RUN;
case 3: return MDP5_IRQ_INTF3_UNDER_RUN;
default: return 0;
static inline uint32_t intf2vblank(struct mdp5_hw_mixer *mixer,
struct mdp5_interface *intf)
* In case of DSI Command Mode, the Ping Pong's read pointer IRQ
* acts as a Vblank signal. The Ping Pong buffer used is bound to
* layer mixer.
if ((intf->type == INTF_DSI) &&
(intf->mode == MDP5_INTF_DSI_MODE_COMMAND))
return MDP5_IRQ_PING_PONG_0_RD_PTR << mixer->pp;
if (intf->type == INTF_WB)
return MDP5_IRQ_WB_2_DONE;
switch (intf->num) {
case 0: return MDP5_IRQ_INTF0_VSYNC;
case 1: return MDP5_IRQ_INTF1_VSYNC;
case 2: return MDP5_IRQ_INTF2_VSYNC;
case 3: return MDP5_IRQ_INTF3_VSYNC;
default: return 0;
static inline uint32_t lm2ppdone(struct mdp5_hw_mixer *mixer)
return MDP5_IRQ_PING_PONG_0_DONE << mixer->pp;
void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask,
uint32_t old_irqmask);
void mdp5_irq_preinstall(struct msm_kms *kms);
int mdp5_irq_postinstall(struct msm_kms *kms);
void mdp5_irq_uninstall(struct msm_kms *kms);
irqreturn_t mdp5_irq(struct msm_kms *kms);
int mdp5_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
void mdp5_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
int mdp5_irq_domain_init(struct mdp5_kms *mdp5_kms);
void mdp5_irq_domain_fini(struct mdp5_kms *mdp5_kms);
uint32_t mdp5_plane_get_flush(struct drm_plane *plane);
enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane);
enum mdp5_pipe mdp5_plane_right_pipe(struct drm_plane *plane);
struct drm_plane *mdp5_plane_init(struct drm_device *dev,
enum drm_plane_type type);
struct mdp5_ctl *mdp5_crtc_get_ctl(struct drm_crtc *crtc);
uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc);
struct mdp5_hw_mixer *mdp5_crtc_get_mixer(struct drm_crtc *crtc);
struct mdp5_pipeline *mdp5_crtc_get_pipeline(struct drm_crtc *crtc);
void mdp5_crtc_set_pipeline(struct drm_crtc *crtc);
void mdp5_crtc_wait_for_commit_done(struct drm_crtc *crtc);
struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
struct drm_plane *plane,
struct drm_plane *cursor_plane, int id);
struct drm_encoder *mdp5_encoder_init(struct drm_device *dev,
struct mdp5_interface *intf, struct mdp5_ctl *ctl);
int mdp5_vid_encoder_set_split_display(struct drm_encoder *encoder,
struct drm_encoder *slave_encoder);
void mdp5_encoder_set_intf_mode(struct drm_encoder *encoder, bool cmd_mode);
int mdp5_encoder_get_linecount(struct drm_encoder *encoder);
u32 mdp5_encoder_get_framecount(struct drm_encoder *encoder);
void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
void mdp5_cmd_encoder_disable(struct drm_encoder *encoder);
void mdp5_cmd_encoder_enable(struct drm_encoder *encoder);
int mdp5_cmd_encoder_set_split_display(struct drm_encoder *encoder,
struct drm_encoder *slave_encoder);
static inline void mdp5_cmd_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
static inline void mdp5_cmd_encoder_disable(struct drm_encoder *encoder)
static inline void mdp5_cmd_encoder_enable(struct drm_encoder *encoder)
static inline int mdp5_cmd_encoder_set_split_display(
struct drm_encoder *encoder, struct drm_encoder *slave_encoder)
return -EINVAL;
#endif /* __MDP5_KMS_H__ */