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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#ifndef __DPU_KMS_H__
#define __DPU_KMS_H__
#include <linux/interconnect.h>
#include <drm/drm_drv.h>
#include "msm_drv.h"
#include "msm_kms.h"
#include "msm_mmu.h"
#include "msm_gem.h"
#include "dpu_hw_catalog.h"
#include "dpu_hw_ctl.h"
#include "dpu_hw_lm.h"
#include "dpu_hw_interrupts.h"
#include "dpu_hw_top.h"
#include "dpu_rm.h"
#include "dpu_core_perf.h"
#define DRMID(x) ((x) ? (x)->base.id : -1)
/**
* DPU_DEBUG - macro for kms/plane/crtc/encoder/connector logs
* @fmt: Pointer to format string
*/
#define DPU_DEBUG(fmt, ...) \
DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
/**
* DPU_DEBUG_DRIVER - macro for hardware driver logging
* @fmt: Pointer to format string
*/
#define DPU_DEBUG_DRIVER(fmt, ...) \
DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__)
#define DPU_ERROR(fmt, ...) pr_err("[dpu error]" fmt, ##__VA_ARGS__)
#define DPU_ERROR_RATELIMITED(fmt, ...) pr_err_ratelimited("[dpu error]" fmt, ##__VA_ARGS__)
/**
* ktime_compare_safe - compare two ktime structures
* This macro is similar to the standard ktime_compare() function, but
* attempts to also handle ktime overflows.
* @A: First ktime value
* @B: Second ktime value
* Returns: -1 if A < B, 0 if A == B, 1 if A > B
*/
#define ktime_compare_safe(A, B) \
ktime_compare(ktime_sub((A), (B)), ktime_set(0, 0))
extern bool dpu_use_virtual_planes;
struct dpu_kms {
struct msm_kms base;
struct drm_device *dev;
const struct dpu_mdss_cfg *catalog;
const struct msm_mdss_data *mdss;
/* io/register spaces: */
void __iomem *mmio, *vbif[VBIF_MAX];
struct regulator *vdd;
struct regulator *mmagic;
struct regulator *venus;
struct dpu_hw_intr *hw_intr;
struct dpu_core_perf perf;
/*
* Global private object state, Do not access directly, use
* dpu_kms_global_get_state()
*/
struct drm_private_obj global_state;
struct dpu_rm rm;
struct dpu_hw_vbif *hw_vbif[VBIF_MAX];
struct dpu_hw_mdp *hw_mdp;
bool has_danger_ctrl;
struct platform_device *pdev;
bool rpm_enabled;
struct clk_bulk_data *clocks;
size_t num_clocks;
/* reference count bandwidth requests, so we know when we can
* release bandwidth. Each atomic update increments, and frame-
* done event decrements. Additionally, for video mode, the
* reference is incremented when crtc is enabled, and decremented
* when disabled.
*/
atomic_t bandwidth_ref;
struct icc_path *path[2];
u32 num_paths;
};
struct vsync_info {
u32 frame_count;
u32 line_count;
};
#define DPU_ENC_WR_PTR_START_TIMEOUT_US 20000
#define DPU_ENC_MAX_POLL_TIMEOUT_US 2000
#define to_dpu_kms(x) container_of(x, struct dpu_kms, base)
#define to_dpu_global_state(x) container_of(x, struct dpu_global_state, base)
/* Global private object state for tracking resources that are shared across
* multiple kms objects (planes/crtcs/etc).
*/
struct dpu_global_state {
struct drm_private_state base;
struct dpu_rm *rm;
uint32_t pingpong_to_crtc_id[PINGPONG_MAX - PINGPONG_0];
uint32_t mixer_to_crtc_id[LM_MAX - LM_0];
uint32_t ctl_to_crtc_id[CTL_MAX - CTL_0];
uint32_t dspp_to_crtc_id[DSPP_MAX - DSPP_0];
uint32_t dsc_to_crtc_id[DSC_MAX - DSC_0];
uint32_t cdm_to_crtc_id;
uint32_t sspp_to_crtc_id[SSPP_MAX - SSPP_NONE];
uint32_t cwb_to_crtc_id[CWB_MAX - CWB_0];
};
struct dpu_global_state
*dpu_kms_get_existing_global_state(struct dpu_kms *dpu_kms);
struct dpu_global_state
*__must_check dpu_kms_get_global_state(struct drm_atomic_state *s);
/**
* Debugfs functions - extra helper functions for debugfs support
*
* Main debugfs documentation is located at,
*
* Documentation/filesystems/debugfs.rst
*
* @dpu_debugfs_create_regset32: Create 32-bit register dump file
*/
void dpu_debugfs_create_regset32(const char *name, umode_t mode,
void *parent,
uint32_t offset, uint32_t length, struct dpu_kms *dpu_kms);
/**
* DPU info management functions
* These functions/definitions allow for building up a 'dpu_info' structure
* containing one or more "key=value\n" entries.
*/
#define DPU_KMS_INFO_MAX_SIZE 4096
/**
* Vblank enable/disable functions
*/
int dpu_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
void dpu_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name);
#endif /* __dpu_kms_H__ */
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