summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/msm/msm_drv.h
blob: b885c3d5ae4dfb8759ae4a928c32f41f78a91475 (plain)
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
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
/*
 * 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 __MSM_DRV_H__
#define __MSM_DRV_H__

#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/module.h>
#include <linux/component.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/iommu.h>
#include <linux/types.h>
#include <linux/of_graph.h>
#include <linux/of_device.h>
#include <asm/sizes.h>

#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/msm_drm.h>
#include <drm/drm_gem.h>

struct msm_kms;
struct msm_gpu;
struct msm_mmu;
struct msm_mdss;
struct msm_rd_state;
struct msm_perf_state;
struct msm_gem_submit;
struct msm_fence_context;
struct msm_fence_cb;
struct msm_gem_address_space;
struct msm_gem_vma;

#define NUM_DOMAINS 2    /* one for KMS, then one per gpu core (?) */

struct msm_file_private {
	/* currently we don't do anything useful with this.. but when
	 * per-context address spaces are supported we'd keep track of
	 * the context's page-tables here.
	 */
	int dummy;
};

enum msm_mdp_plane_property {
	PLANE_PROP_ZPOS,
	PLANE_PROP_ALPHA,
	PLANE_PROP_PREMULTIPLIED,
	PLANE_PROP_MAX_NUM
};

struct msm_vblank_ctrl {
	struct work_struct work;
	struct list_head event_list;
	spinlock_t lock;
};

struct msm_drm_private {

	struct drm_device *dev;

	struct msm_kms *kms;

	/* subordinate devices, if present: */
	struct platform_device *gpu_pdev;

	/* top level MDSS wrapper device (for MDP5 only) */
	struct msm_mdss *mdss;

	/* possibly this should be in the kms component, but it is
	 * shared by both mdp4 and mdp5..
	 */
	struct hdmi *hdmi;

	/* eDP is for mdp5 only, but kms has not been created
	 * when edp_bind() and edp_init() are called. Here is the only
	 * place to keep the edp instance.
	 */
	struct msm_edp *edp;

	/* DSI is shared by mdp4 and mdp5 */
	struct msm_dsi *dsi[2];

	/* when we have more than one 'msm_gpu' these need to be an array: */
	struct msm_gpu *gpu;
	struct msm_file_private *lastctx;

	struct drm_fb_helper *fbdev;

	struct msm_rd_state *rd;
	struct msm_perf_state *perf;

	/* list of GEM objects: */
	struct list_head inactive_list;

	struct workqueue_struct *wq;
	struct workqueue_struct *atomic_wq;

	/* crtcs pending async atomic updates: */
	uint32_t pending_crtcs;
	wait_queue_head_t pending_crtcs_event;

	/* Registered address spaces.. currently this is fixed per # of
	 * iommu's.  Ie. one for display block and one for gpu block.
	 * Eventually, to do per-process gpu pagetables, we'll want one
	 * of these per-process.
	 */
	unsigned int num_aspaces;
	struct msm_gem_address_space *aspace[NUM_DOMAINS];

	unsigned int num_planes;
	struct drm_plane *planes[16];

	unsigned int num_crtcs;
	struct drm_crtc *crtcs[8];

	unsigned int num_encoders;
	struct drm_encoder *encoders[8];

	unsigned int num_bridges;
	struct drm_bridge *bridges[8];

	unsigned int num_connectors;
	struct drm_connector *connectors[8];

	/* Properties */
	struct drm_property *plane_property[PLANE_PROP_MAX_NUM];

	/* VRAM carveout, used when no IOMMU: */
	struct {
		unsigned long size;
		dma_addr_t paddr;
		/* NOTE: mm managed at the page level, size is in # of pages
		 * and position mm_node->start is in # of pages:
		 */
		struct drm_mm mm;
	} vram;

	struct notifier_block vmap_notifier;
	struct shrinker shrinker;

	struct msm_vblank_ctrl vblank_ctrl;

	/* task holding struct_mutex.. currently only used in submit path
	 * to detect and reject faults from copy_from_user() for submit
	 * ioctl.
	 */
	struct task_struct *struct_mutex_task;
};

struct msm_format {
	uint32_t pixel_format;
};

int msm_atomic_check(struct drm_device *dev,
		     struct drm_atomic_state *state);
int msm_atomic_commit(struct drm_device *dev,
		struct drm_atomic_state *state, bool nonblock);
struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
void msm_atomic_state_clear(struct drm_atomic_state *state);
void msm_atomic_state_free(struct drm_atomic_state *state);

int msm_register_address_space(struct drm_device *dev,
		struct msm_gem_address_space *aspace);

void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
		struct msm_gem_vma *vma, struct sg_table *sgt);
int msm_gem_map_vma(struct msm_gem_address_space *aspace,
		struct msm_gem_vma *vma, struct sg_table *sgt, int npages);

void msm_gem_address_space_destroy(struct msm_gem_address_space *aspace);
struct msm_gem_address_space *
msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain,
		const char *name);

void msm_gem_submit_free(struct msm_gem_submit *submit);
int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
		struct drm_file *file);

void msm_gem_shrinker_init(struct drm_device *dev);
void msm_gem_shrinker_cleanup(struct drm_device *dev);

int msm_gem_mmap_obj(struct drm_gem_object *obj,
			struct vm_area_struct *vma);
int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
int msm_gem_fault(struct vm_fault *vmf);
uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
		uint64_t *iova);
int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint64_t *iova);
uint64_t msm_gem_iova(struct drm_gem_object *obj, int id);
struct page **msm_gem_get_pages(struct drm_gem_object *obj);
void msm_gem_put_pages(struct drm_gem_object *obj);
void msm_gem_put_iova(struct drm_gem_object *obj, int id);
int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
		struct drm_mode_create_dumb *args);
int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
		uint32_t handle, uint64_t *offset);
struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
void *msm_gem_prime_vmap(struct drm_gem_object *obj);
void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
		struct dma_buf_attachment *attach, struct sg_table *sg);
int msm_gem_prime_pin(struct drm_gem_object *obj);
void msm_gem_prime_unpin(struct drm_gem_object *obj);
void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj);
void *msm_gem_get_vaddr(struct drm_gem_object *obj);
void msm_gem_put_vaddr_locked(struct drm_gem_object *obj);
void msm_gem_put_vaddr(struct drm_gem_object *obj);
int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
void msm_gem_purge(struct drm_gem_object *obj);
void msm_gem_vunmap(struct drm_gem_object *obj);
int msm_gem_sync_object(struct drm_gem_object *obj,
		struct msm_fence_context *fctx, bool exclusive);
void msm_gem_move_to_active(struct drm_gem_object *obj,
		struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence);
void msm_gem_move_to_inactive(struct drm_gem_object *obj);
int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
int msm_gem_cpu_fini(struct drm_gem_object *obj);
void msm_gem_free_object(struct drm_gem_object *obj);
int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
		uint32_t size, uint32_t flags, uint32_t *handle);
struct drm_gem_object *msm_gem_new(struct drm_device *dev,
		uint32_t size, uint32_t flags);
struct drm_gem_object *msm_gem_import(struct drm_device *dev,
		struct dma_buf *dmabuf, struct sg_table *sgt);

int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id);
void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id);
uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane);
struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
		const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
		struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);

struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
void msm_fbdev_free(struct drm_device *dev);

struct hdmi;
int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
		struct drm_encoder *encoder);
void __init msm_hdmi_register(void);
void __exit msm_hdmi_unregister(void);

struct msm_edp;
void __init msm_edp_register(void);
void __exit msm_edp_unregister(void);
int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
		struct drm_encoder *encoder);

struct msm_dsi;
#ifdef CONFIG_DRM_MSM_DSI
void __init msm_dsi_register(void);
void __exit msm_dsi_unregister(void);
int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
			 struct drm_encoder *encoder);
#else
static inline void __init msm_dsi_register(void)
{
}
static inline void __exit msm_dsi_unregister(void)
{
}
static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
				       struct drm_device *dev,
				       struct drm_encoder *encoder)
{
	return -EINVAL;
}
#endif

void __init msm_mdp_register(void);
void __exit msm_mdp_unregister(void);

#ifdef CONFIG_DEBUG_FS
void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
int msm_debugfs_late_init(struct drm_device *dev);
int msm_rd_debugfs_init(struct drm_minor *minor);
void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
void msm_rd_dump_submit(struct msm_gem_submit *submit);
int msm_perf_debugfs_init(struct drm_minor *minor);
void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
#else
static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {}
static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
#endif

struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
		const char *dbgname);
void msm_writel(u32 data, void __iomem *addr);
u32 msm_readl(const void __iomem *addr);

#define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
#define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)

static inline int align_pitch(int width, int bpp)
{
	int bytespp = (bpp + 7) / 8;
	/* adreno needs pitch aligned to 32 pixels: */
	return bytespp * ALIGN(width, 32);
}

/* for the generated headers: */
#define INVALID_IDX(idx) ({BUG(); 0;})
#define fui(x)                ({BUG(); 0;})
#define util_float_to_half(x) ({BUG(); 0;})


#define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)

/* for conditionally setting boolean flag(s): */
#define COND(bool, val) ((bool) ? (val) : 0)

static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
{
	ktime_t now = ktime_get();
	unsigned long remaining_jiffies;

	if (ktime_compare(*timeout, now) < 0) {
		remaining_jiffies = 0;
	} else {
		ktime_t rem = ktime_sub(*timeout, now);
		struct timespec ts = ktime_to_timespec(rem);
		remaining_jiffies = timespec_to_jiffies(&ts);
	}

	return remaining_jiffies;
}

#endif /* __MSM_DRV_H__ */
OpenPOWER on IntegriCloud