aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
blob: 715520c54cdec48f93750da0843213878aaabf86 (plain) (blame)
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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
/*
 * 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 __MDP4_KMS_H__
#define __MDP4_KMS_H__

#include "msm_drv.h"
#include "msm_kms.h"
#include "mdp/mdp_kms.h"
#include "mdp4.xml.h"

struct mdp4_kms {
	struct mdp_kms base;

	struct drm_device *dev;

	int rev;

	/* mapper-id used to request GEM buffer mapped for scanout: */
	int id;

	void __iomem *mmio;

	struct regulator *dsi_pll_vdda;
	struct regulator *dsi_pll_vddio;
	struct regulator *vdd;

	struct clk *clk;
	struct clk *pclk;
	struct clk *lut_clk;

	struct mdp_irq error_handler;

	/* empty/blank cursor bo to use when cursor is "disabled" */
	struct drm_gem_object *blank_cursor_bo;
	uint32_t blank_cursor_iova;
};
#define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base)

/* platform config data (ie. from DT, or pdata) */
struct mdp4_platform_config {
	struct iommu_domain *iommu;
	uint32_t max_clk;
};

static inline void mdp4_write(struct mdp4_kms *mdp4_kms, u32 reg, u32 data)
{
	msm_writel(data, mdp4_kms->mmio + reg);
}

static inline u32 mdp4_read(struct mdp4_kms *mdp4_kms, u32 reg)
{
	return msm_readl(mdp4_kms->mmio + reg);
}

static inline uint32_t pipe2flush(enum mdp4_pipe pipe)
{
	switch (pipe) {
	case VG1:      return MDP4_OVERLAY_FLUSH_VG1;
	case VG2:      return MDP4_OVERLAY_FLUSH_VG2;
	case RGB1:     return MDP4_OVERLAY_FLUSH_RGB1;
	case RGB2:     return MDP4_OVERLAY_FLUSH_RGB1;
	default:       return 0;
	}
}

static inline uint32_t ovlp2flush(int ovlp)
{
	switch (ovlp) {
	case 0:        return MDP4_OVERLAY_FLUSH_OVLP0;
	case 1:        return MDP4_OVERLAY_FLUSH_OVLP1;
	default:       return 0;
	}
}

static inline uint32_t dma2irq(enum mdp4_dma dma)
{
	switch (dma) {
	case DMA_P:    return MDP4_IRQ_DMA_P_DONE;
	case DMA_S:    return MDP4_IRQ_DMA_S_DONE;
	case DMA_E:    return MDP4_IRQ_DMA_E_DONE;
	default:       return 0;
	}
}

static inline uint32_t dma2err(enum mdp4_dma dma)
{
	switch (dma) {
	case DMA_P:    return MDP4_IRQ_PRIMARY_INTF_UDERRUN;
	case DMA_S:    return 0;  // ???
	case DMA_E:    return MDP4_IRQ_EXTERNAL_INTF_UDERRUN;
	default:       return 0;
	}
}

static inline uint32_t mixercfg(int mixer, enum mdp4_pipe pipe,
		enum mdp_mixer_stage_id stage)
{
	uint32_t mixer_cfg = 0;

	switch (pipe) {
	case VG1:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE0(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE0_MIXER1);
		break;
	case VG2:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE1(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE1_MIXER1);
		break;
	case RGB1:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE2(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE2_MIXER1);
		break;
	case RGB2:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE3(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE3_MIXER1);
		break;
	case RGB3:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE4(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE4_MIXER1);
		break;
	case VG3:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE5(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE5_MIXER1);
		break;
	case VG4:
		mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE6(stage) |
			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE6_MIXER1);
		break;
	default:
		WARN_ON("invalid pipe");
		break;
	}

	return mixer_cfg;
}

int mdp4_disable(struct mdp4_kms *mdp4_kms);
int mdp4_enable(struct mdp4_kms *mdp4_kms);

void mdp4_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask);
void mdp4_irq_preinstall(struct msm_kms *kms);
int mdp4_irq_postinstall(struct msm_kms *kms);
void mdp4_irq_uninstall(struct msm_kms *kms);
irqreturn_t mdp4_irq(struct msm_kms *kms);
int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);

static inline
uint32_t mdp4_get_formats(enum mdp4_pipe pipe_id, uint32_t *pixel_formats,
		uint32_t max_formats)
{
	/* TODO when we have YUV, we need to filter supported formats
	 * based on pipe_id..
	 */
	return mdp_get_formats(pixel_formats, max_formats);
}

void mdp4_plane_install_properties(struct drm_plane *plane,
		struct drm_mode_object *obj);
void mdp4_plane_set_scanout(struct drm_plane *plane,
		struct drm_framebuffer *fb);
int mdp4_plane_mode_set(struct drm_plane *plane,
		struct drm_crtc *crtc, struct drm_framebuffer *fb,
		int crtc_x, int crtc_y,
		unsigned int crtc_w, unsigned int crtc_h,
		uint32_t src_x, uint32_t src_y,
		uint32_t src_w, uint32_t src_h);
enum mdp4_pipe mdp4_plane_pipe(struct drm_plane *plane);
struct drm_plane *mdp4_plane_init(struct drm_device *dev,
		enum mdp4_pipe pipe_id, bool private_plane);

uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc);
void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file);
void mdp4_crtc_set_config(struct drm_crtc *crtc, uint32_t config);
void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf);
void mdp4_crtc_attach(struct drm_crtc *crtc, struct drm_plane *plane);
void mdp4_crtc_detach(struct drm_crtc *crtc, struct drm_plane *plane);
struct drm_crtc *mdp4_crtc_init(struct drm_device *dev,
		struct drm_plane *plane, int id, int ovlp_id,
		enum mdp4_dma dma_id);

long mdp4_dtv_round_pixclk(struct drm_encoder *encoder, unsigned long rate);
struct drm_encoder *mdp4_dtv_encoder_init(struct drm_device *dev);

#ifdef CONFIG_MSM_BUS_SCALING
static inline int match_dev_name(struct device *dev, void *data)
{
	return !strcmp(dev_name(dev), data);
}
/* bus scaling data is associated with extra pointless platform devices,
 * "dtv", etc.. this is a bit of a hack, but we need a way for encoders
 * to find their pdata to make the bus-scaling stuff work.
 */
static inline void *mdp4_find_pdata(const char *devname)
{
	struct device *dev;
	dev = bus_find_device(&platform_bus_type, NULL,
			(void *)devname, match_dev_name);
	return dev ? dev->platform_data : NULL;
}
#endif

#endif /* __MDP4_KMS_H__ */