9f6b65642b
Add ->flush_commit(crtc_mask). Currently a no-op, but kms backends should migrate writing flush registers to this hook, so we can decouple pushing updates to hardware, and flushing the updates. Once we add async commit support, the hw updates will be pushed down to the hw synchronously, but flushing the updates will be deferred until as close to vblank as possible, so that multiple updates can be combined in a single frame. Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Sean Paul <sean@poorly.run>
141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
|
|
* Copyright (C) 2013 Red Hat
|
|
* Author: Rob Clark <robdclark@gmail.com>
|
|
*/
|
|
|
|
#ifndef __MSM_KMS_H__
|
|
#define __MSM_KMS_H__
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/regulator/consumer.h>
|
|
|
|
#include "msm_drv.h"
|
|
|
|
#define MAX_PLANE 4
|
|
|
|
/* As there are different display controller blocks depending on the
|
|
* snapdragon version, the kms support is split out and the appropriate
|
|
* implementation is loaded at runtime. The kms module is responsible
|
|
* for constructing the appropriate planes/crtcs/encoders/connectors.
|
|
*/
|
|
struct msm_kms_funcs {
|
|
/* hw initialization: */
|
|
int (*hw_init)(struct msm_kms *kms);
|
|
/* irq handling: */
|
|
void (*irq_preinstall)(struct msm_kms *kms);
|
|
int (*irq_postinstall)(struct msm_kms *kms);
|
|
void (*irq_uninstall)(struct msm_kms *kms);
|
|
irqreturn_t (*irq)(struct msm_kms *kms);
|
|
int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
|
|
void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
|
|
|
|
/*
|
|
* Atomic commit handling:
|
|
*/
|
|
|
|
/**
|
|
* Prepare for atomic commit. This is called after any previous
|
|
* (async or otherwise) commit has completed.
|
|
*/
|
|
void (*prepare_commit)(struct msm_kms *kms, struct drm_atomic_state *state);
|
|
|
|
/**
|
|
* Flush an atomic commit. This is called after the hardware
|
|
* updates have already been pushed down to effected planes/
|
|
* crtcs/encoders/connectors.
|
|
*/
|
|
void (*flush_commit)(struct msm_kms *kms, unsigned crtc_mask);
|
|
|
|
/* TODO remove ->commit(), use ->flush_commit() instead: */
|
|
void (*commit)(struct msm_kms *kms, struct drm_atomic_state *state);
|
|
|
|
/**
|
|
* Wait for any in-progress flush to complete on the specified
|
|
* crtcs. This should not block if there is no in-progress
|
|
* commit (ie. don't just wait for a vblank), as it will also
|
|
* be called before ->prepare_commit() to ensure any potential
|
|
* "async" commit has completed.
|
|
*/
|
|
void (*wait_flush)(struct msm_kms *kms, unsigned crtc_mask);
|
|
|
|
/**
|
|
* Clean up after commit is completed. This is called after
|
|
* ->wait_flush(), to give the backend a chance to do any
|
|
* post-commit cleanup.
|
|
*/
|
|
void (*complete_commit)(struct msm_kms *kms, unsigned crtc_mask);
|
|
|
|
/*
|
|
* Format handling:
|
|
*/
|
|
|
|
/* get msm_format w/ optional format modifiers from drm_mode_fb_cmd2 */
|
|
const struct msm_format *(*get_format)(struct msm_kms *kms,
|
|
const uint32_t format,
|
|
const uint64_t modifiers);
|
|
/* do format checking on format modified through fb_cmd2 modifiers */
|
|
int (*check_modified_format)(const struct msm_kms *kms,
|
|
const struct msm_format *msm_fmt,
|
|
const struct drm_mode_fb_cmd2 *cmd,
|
|
struct drm_gem_object **bos);
|
|
|
|
/* misc: */
|
|
long (*round_pixclk)(struct msm_kms *kms, unsigned long rate,
|
|
struct drm_encoder *encoder);
|
|
int (*set_split_display)(struct msm_kms *kms,
|
|
struct drm_encoder *encoder,
|
|
struct drm_encoder *slave_encoder,
|
|
bool is_cmd_mode);
|
|
void (*set_encoder_mode)(struct msm_kms *kms,
|
|
struct drm_encoder *encoder,
|
|
bool cmd_mode);
|
|
/* cleanup: */
|
|
void (*destroy)(struct msm_kms *kms);
|
|
#ifdef CONFIG_DEBUG_FS
|
|
/* debugfs: */
|
|
int (*debugfs_init)(struct msm_kms *kms, struct drm_minor *minor);
|
|
#endif
|
|
};
|
|
|
|
struct msm_kms {
|
|
const struct msm_kms_funcs *funcs;
|
|
|
|
/* irq number to be passed on to drm_irq_install */
|
|
int irq;
|
|
|
|
/* mapper-id used to request GEM buffer mapped for scanout: */
|
|
struct msm_gem_address_space *aspace;
|
|
};
|
|
|
|
static inline void msm_kms_init(struct msm_kms *kms,
|
|
const struct msm_kms_funcs *funcs)
|
|
{
|
|
kms->funcs = funcs;
|
|
}
|
|
|
|
struct msm_kms *mdp4_kms_init(struct drm_device *dev);
|
|
struct msm_kms *mdp5_kms_init(struct drm_device *dev);
|
|
struct msm_kms *dpu_kms_init(struct drm_device *dev);
|
|
|
|
struct msm_mdss_funcs {
|
|
int (*enable)(struct msm_mdss *mdss);
|
|
int (*disable)(struct msm_mdss *mdss);
|
|
void (*destroy)(struct drm_device *dev);
|
|
};
|
|
|
|
struct msm_mdss {
|
|
struct drm_device *dev;
|
|
const struct msm_mdss_funcs *funcs;
|
|
};
|
|
|
|
int mdp5_mdss_init(struct drm_device *dev);
|
|
int dpu_mdss_init(struct drm_device *dev);
|
|
|
|
#define for_each_crtc_mask(dev, crtc, crtc_mask) \
|
|
drm_for_each_crtc(crtc, dev) \
|
|
for_each_if (drm_crtc_mask(crtc) & (crtc_mask))
|
|
|
|
#endif /* __MSM_KMS_H__ */
|