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/*
* 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 __MDP5_KMS_H__
#define __MDP5_KMS_H__
#include "msm_drv.h"
#include "msm_kms.h"
#include "mdp/mdp_kms.h"
#include "mdp5_cfg.h" /* must be included before mdp5.xml.h */
#include "mdp5.xml.h"
#include "mdp5_ctl.h"
#include "mdp5_pipe.h"
#include "mdp5_smp.h"
struct mdp5_state;
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];
struct mdp5_cfg_handler *cfg;
uint32_t caps; /* MDP capabilities (MDP_CAP_XXX bits) */
/**
* Global atomic state. Do not access directly, use mdp5_get_state()
*/
struct mdp5_state *state;
struct drm_modeset_lock state_lock;
/* mapper-id used to request GEM buffer mapped for scanout: */
int id;
struct msm_gem_address_space *aspace;
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 *vsync_clk;
/*
* lock to protect access to global resources: ie., following register:
* - REG_MDP5_DISP_INTF_SEL
*/
spinlock_t resource_lock;
bool rpm_enabled;
struct mdp_irq error_handler;
};
#define to_mdp5_kms(x) container_of(x, struct mdp5_kms, base)
/* Global atomic state for tracking resources that are shared across
* multiple kms objects (planes/crtcs/etc).
*
* For atomic updates which require modifying global state,
*/
struct mdp5_state {
struct mdp5_hw_pipe_state hwpipe;
struct mdp5_smp_state smp;
};
struct mdp5_state *__must_check
mdp5_get_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;
/* aligned with property */
uint8_t premultiplied;
uint8_t zpos;
uint8_t alpha;
/* assigned by crtc blender */
enum mdp_mixer_stage_id stage;
bool pending : 1;
};
#define to_mdp5_plane_state(x) \
container_of(x, struct mdp5_plane_state, base)
enum mdp5_intf_mode {
MDP5_INTF_MODE_NONE = 0,
/* Modes used for DSI interface (INTF_DSI type): */
MDP5_INTF_DSI_MODE_VIDEO,
MDP5_INTF_DSI_MODE_COMMAND,
/* Modes used for WB interface (INTF_WB type): */
MDP5_INTF_WB_MODE_BLOCK,
MDP5_INTF_WB_MODE_LINE,
};
struct mdp5_interface {
int num; /* display interface number */
enum mdp5_intf_type type;
enum mdp5_intf_mode mode;
};
static inline void mdp5_write(struct mdp5_kms *mdp5_kms, u32 reg, u32 data)
{
msm_writel(data, mdp5_kms->mmio + reg);
}
static inline u32 mdp5_read(struct mdp5_kms *mdp5_kms, u32 reg)
{
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
NAME(STAGE_UNUSED), NAME(STAGE_BASE),
NAME(STAGE0), NAME(STAGE1), NAME(STAGE2),
NAME(STAGE3), NAME(STAGE4), NAME(STAGE6),
#undef NAME
};
return names[stage];
}
static inline const char *pipe2name(enum mdp5_pipe pipe)
{
static const char *names[] = {
#define NAME(n) [SSPP_ ## n] = #n
NAME(VIG0), NAME(VIG1), NAME(VIG2),
NAME(RGB0), NAME(RGB1), NAME(RGB2),
NAME(DMA0), NAME(DMA1),
NAME(VIG3), NAME(RGB3),
#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;
default:
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;
}
}
#define GET_PING_PONG_ID(layer_mixer) ((layer_mixer == 5) ? 3 : layer_mixer)
static inline uint32_t intf2vblank(int lm, 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 << GET_PING_PONG_ID(lm);
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(int lm)
{
return MDP5_IRQ_PING_PONG_0_DONE << GET_PING_PONG_ID(lm);
}
int mdp5_disable(struct mdp5_kms *mdp5_kms);
int mdp5_enable(struct mdp5_kms *mdp5_kms);
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);
void mdp5_plane_complete_commit(struct drm_plane *plane,
struct drm_plane_state *state);
enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane);
struct drm_plane *mdp5_plane_init(struct drm_device *dev, bool primary);
uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc);
int mdp5_crtc_get_lm(struct drm_crtc *crtc);
void mdp5_crtc_set_pipeline(struct drm_crtc *crtc,
struct mdp5_interface *intf, struct mdp5_ctl *ctl);
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, int id);
struct drm_encoder *mdp5_encoder_init(struct drm_device *dev,
struct mdp5_interface *intf, struct mdp5_ctl *ctl);
int mdp5_encoder_set_split_display(struct drm_encoder *encoder,
struct drm_encoder *slave_encoder);
int mdp5_encoder_get_linecount(struct drm_encoder *encoder);
u32 mdp5_encoder_get_framecount(struct drm_encoder *encoder);
#ifdef CONFIG_DRM_MSM_DSI
struct drm_encoder *mdp5_cmd_encoder_init(struct drm_device *dev,
struct mdp5_interface *intf, struct mdp5_ctl *ctl);
int mdp5_cmd_encoder_set_split_display(struct drm_encoder *encoder,
struct drm_encoder *slave_encoder);
#else
static inline struct drm_encoder *mdp5_cmd_encoder_init(struct drm_device *dev,
struct mdp5_interface *intf, struct mdp5_ctl *ctl)
{
return ERR_PTR(-EINVAL);
}
static inline int mdp5_cmd_encoder_set_split_display(
struct drm_encoder *encoder, struct drm_encoder *slave_encoder)
{
return -EINVAL;
}
#endif
#endif /* __MDP5_KMS_H__ */
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