1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* 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))
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_enc_id[PINGPONG_MAX - PINGPONG_0];
uint32_t mixer_to_enc_id[LM_MAX - LM_0];
uint32_t ctl_to_enc_id[CTL_MAX - CTL_0];
uint32_t dspp_to_enc_id[DSPP_MAX - DSPP_0];
uint32_t dsc_to_enc_id[DSC_MAX - DSC_0];
uint32_t cdm_to_enc_id;
};
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
*/
/**
* dpu_debugfs_create_regset32 - Create register read back file for debugfs
*
* This function is almost identical to the standard debugfs_create_regset32()
* function, with the main difference being that a list of register
* names/offsets do not need to be provided. The 'read' function simply outputs
* sequential register values over a specified range.
*
* @name: File name within debugfs
* @mode: File mode within debugfs
* @parent: Parent directory entry within debugfs, can be NULL
* @offset: sub-block offset
* @length: sub-block length, in bytes
* @dpu_kms: pointer to dpu kms structure
*/
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_debugfs_get_root - Return root directory entry for KMS's debugfs
*
* The return value should be passed as the 'parent' argument to subsequent
* debugfs create calls.
*
* @dpu_kms: Pointer to DPU's KMS structure
*
* Return: dentry pointer for DPU's debugfs location
*/
void *dpu_debugfs_get_root(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);
/**
* dpu_kms_get_clk_rate() - get the clock rate
* @dpu_kms: pointer to dpu_kms structure
* @clock_name: clock name to get the rate
*
* Return: current clock rate
*/
unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name);
#endif /* __dpu_kms_H__ */
|
