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[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / msm / msm_drv.h
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1/*
2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef __MSM_DRV_H__
19#define __MSM_DRV_H__
20
21#include <linux/kernel.h>
22#include <linux/clk.h>
23#include <linux/cpufreq.h>
24#include <linux/module.h>
060530f1 25#include <linux/component.h>
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26#include <linux/platform_device.h>
27#include <linux/pm.h>
28#include <linux/pm_runtime.h>
29#include <linux/slab.h>
30#include <linux/list.h>
31#include <linux/iommu.h>
32#include <linux/types.h>
3d6df062 33#include <linux/of_graph.h>
e9fbdaf2 34#include <linux/of_device.h>
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35#include <asm/sizes.h>
36
c8afe684 37#include <drm/drmP.h>
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38#include <drm/drm_atomic.h>
39#include <drm/drm_atomic_helper.h>
c8afe684 40#include <drm/drm_crtc_helper.h>
cf3a7e4c 41#include <drm/drm_plane_helper.h>
c8afe684 42#include <drm/drm_fb_helper.h>
7198e6b0 43#include <drm/msm_drm.h>
d9fc9413 44#include <drm/drm_gem.h>
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45
46struct msm_kms;
7198e6b0 47struct msm_gpu;
871d812a 48struct msm_mmu;
990a4007 49struct msm_mdss;
a7d3c950 50struct msm_rd_state;
70c70f09 51struct msm_perf_state;
a7d3c950 52struct msm_gem_submit;
ca762a8a 53struct msm_fence_context;
fde5de6c 54struct msm_fence_cb;
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55struct msm_gem_address_space;
56struct msm_gem_vma;
c8afe684 57
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58#define NUM_DOMAINS 2 /* one for KMS, then one per gpu core (?) */
59
60struct msm_file_private {
61 /* currently we don't do anything useful with this.. but when
62 * per-context address spaces are supported we'd keep track of
63 * the context's page-tables here.
64 */
65 int dummy;
66};
c8afe684 67
12987781 68enum msm_mdp_plane_property {
69 PLANE_PROP_ZPOS,
70 PLANE_PROP_ALPHA,
71 PLANE_PROP_PREMULTIPLIED,
72 PLANE_PROP_MAX_NUM
73};
74
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75struct msm_vblank_ctrl {
76 struct work_struct work;
77 struct list_head event_list;
78 spinlock_t lock;
79};
80
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81struct msm_drm_private {
82
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83 struct drm_device *dev;
84
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85 struct msm_kms *kms;
86
060530f1 87 /* subordinate devices, if present: */
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88 struct platform_device *gpu_pdev;
89
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90 /* top level MDSS wrapper device (for MDP5 only) */
91 struct msm_mdss *mdss;
92
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93 /* possibly this should be in the kms component, but it is
94 * shared by both mdp4 and mdp5..
95 */
96 struct hdmi *hdmi;
060530f1 97
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98 /* eDP is for mdp5 only, but kms has not been created
99 * when edp_bind() and edp_init() are called. Here is the only
100 * place to keep the edp instance.
101 */
102 struct msm_edp *edp;
103
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104 /* DSI is shared by mdp4 and mdp5 */
105 struct msm_dsi *dsi[2];
106
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107 /* when we have more than one 'msm_gpu' these need to be an array: */
108 struct msm_gpu *gpu;
109 struct msm_file_private *lastctx;
110
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111 struct drm_fb_helper *fbdev;
112
a7d3c950 113 struct msm_rd_state *rd;
70c70f09 114 struct msm_perf_state *perf;
a7d3c950 115
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116 /* list of GEM objects: */
117 struct list_head inactive_list;
118
119 struct workqueue_struct *wq;
ba00c3f2 120 struct workqueue_struct *atomic_wq;
c8afe684 121
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122 /* crtcs pending async atomic updates: */
123 uint32_t pending_crtcs;
124 wait_queue_head_t pending_crtcs_event;
125
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126 /* Registered address spaces.. currently this is fixed per # of
127 * iommu's. Ie. one for display block and one for gpu block.
128 * Eventually, to do per-process gpu pagetables, we'll want one
129 * of these per-process.
130 */
131 unsigned int num_aspaces;
132 struct msm_gem_address_space *aspace[NUM_DOMAINS];
c8afe684 133
a8623918 134 unsigned int num_planes;
bc5289ee 135 struct drm_plane *planes[16];
a8623918 136
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137 unsigned int num_crtcs;
138 struct drm_crtc *crtcs[8];
139
140 unsigned int num_encoders;
141 struct drm_encoder *encoders[8];
142
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143 unsigned int num_bridges;
144 struct drm_bridge *bridges[8];
145
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146 unsigned int num_connectors;
147 struct drm_connector *connectors[8];
871d812a 148
12987781 149 /* Properties */
150 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
151
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152 /* VRAM carveout, used when no IOMMU: */
153 struct {
154 unsigned long size;
155 dma_addr_t paddr;
156 /* NOTE: mm managed at the page level, size is in # of pages
157 * and position mm_node->start is in # of pages:
158 */
159 struct drm_mm mm;
160 } vram;
78b1d470 161
e1e9db2c 162 struct notifier_block vmap_notifier;
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163 struct shrinker shrinker;
164
78b1d470 165 struct msm_vblank_ctrl vblank_ctrl;
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166
167 /* task holding struct_mutex.. currently only used in submit path
168 * to detect and reject faults from copy_from_user() for submit
169 * ioctl.
170 */
171 struct task_struct *struct_mutex_task;
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172};
173
174struct msm_format {
175 uint32_t pixel_format;
176};
177
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178int msm_atomic_check(struct drm_device *dev,
179 struct drm_atomic_state *state);
cf3a7e4c 180int msm_atomic_commit(struct drm_device *dev,
a3ccfb9f 181 struct drm_atomic_state *state, bool nonblock);
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182struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
183void msm_atomic_state_clear(struct drm_atomic_state *state);
184void msm_atomic_state_free(struct drm_atomic_state *state);
cf3a7e4c 185
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186int msm_register_address_space(struct drm_device *dev,
187 struct msm_gem_address_space *aspace);
188
189void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
190 struct msm_gem_vma *vma, struct sg_table *sgt);
191int msm_gem_map_vma(struct msm_gem_address_space *aspace,
192 struct msm_gem_vma *vma, struct sg_table *sgt, int npages);
193
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194void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
195
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196struct msm_gem_address_space *
197msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain,
198 const char *name);
c8afe684 199
40e6815b 200void msm_gem_submit_free(struct msm_gem_submit *submit);
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201int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
202 struct drm_file *file);
203
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204void msm_gem_shrinker_init(struct drm_device *dev);
205void msm_gem_shrinker_cleanup(struct drm_device *dev);
206
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207int msm_gem_mmap_obj(struct drm_gem_object *obj,
208 struct vm_area_struct *vma);
c8afe684 209int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
11bac800 210int msm_gem_fault(struct vm_fault *vmf);
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211uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
212int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
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213 uint64_t *iova);
214int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint64_t *iova);
215uint64_t msm_gem_iova(struct drm_gem_object *obj, int id);
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216struct page **msm_gem_get_pages(struct drm_gem_object *obj);
217void msm_gem_put_pages(struct drm_gem_object *obj);
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218void msm_gem_put_iova(struct drm_gem_object *obj, int id);
219int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
220 struct drm_mode_create_dumb *args);
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221int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
222 uint32_t handle, uint64_t *offset);
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223struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
224void *msm_gem_prime_vmap(struct drm_gem_object *obj);
225void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
77a147e7 226int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
43523eba 227struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
05b84911 228struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
b5e9c1a2 229 struct dma_buf_attachment *attach, struct sg_table *sg);
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230int msm_gem_prime_pin(struct drm_gem_object *obj);
231void msm_gem_prime_unpin(struct drm_gem_object *obj);
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232void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj);
233void *msm_gem_get_vaddr(struct drm_gem_object *obj);
234void msm_gem_put_vaddr_locked(struct drm_gem_object *obj);
235void msm_gem_put_vaddr(struct drm_gem_object *obj);
4cd33c48 236int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
68209390 237void msm_gem_purge(struct drm_gem_object *obj);
e1e9db2c 238void msm_gem_vunmap(struct drm_gem_object *obj);
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239int msm_gem_sync_object(struct drm_gem_object *obj,
240 struct msm_fence_context *fctx, bool exclusive);
7198e6b0 241void msm_gem_move_to_active(struct drm_gem_object *obj,
f54d1867 242 struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence);
7198e6b0 243void msm_gem_move_to_inactive(struct drm_gem_object *obj);
ba00c3f2 244int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
7198e6b0 245int msm_gem_cpu_fini(struct drm_gem_object *obj);
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246void msm_gem_free_object(struct drm_gem_object *obj);
247int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
248 uint32_t size, uint32_t flags, uint32_t *handle);
249struct drm_gem_object *msm_gem_new(struct drm_device *dev,
250 uint32_t size, uint32_t flags);
05b84911 251struct drm_gem_object *msm_gem_import(struct drm_device *dev,
79f0e202 252 struct dma_buf *dmabuf, struct sg_table *sgt);
c8afe684 253
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254int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id);
255void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id);
256uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane);
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257struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
258const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
259struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
1eb83451 260 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
c8afe684 261struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
1eb83451 262 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
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263
264struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
1aaa57f5 265void msm_fbdev_free(struct drm_device *dev);
c8afe684 266
dada25bd 267struct hdmi;
fcda50c8 268int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
067fef37 269 struct drm_encoder *encoder);
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270void __init msm_hdmi_register(void);
271void __exit msm_hdmi_unregister(void);
c8afe684 272
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273struct msm_edp;
274void __init msm_edp_register(void);
275void __exit msm_edp_unregister(void);
276int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
277 struct drm_encoder *encoder);
278
a689554b 279struct msm_dsi;
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280#ifdef CONFIG_DRM_MSM_DSI
281void __init msm_dsi_register(void);
282void __exit msm_dsi_unregister(void);
283int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
97e00119 284 struct drm_encoder *encoder);
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285#else
286static inline void __init msm_dsi_register(void)
287{
288}
289static inline void __exit msm_dsi_unregister(void)
290{
291}
292static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
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293 struct drm_device *dev,
294 struct drm_encoder *encoder)
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295{
296 return -EINVAL;
297}
298#endif
299
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300void __init msm_mdp_register(void);
301void __exit msm_mdp_unregister(void);
302
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303#ifdef CONFIG_DEBUG_FS
304void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
305void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
306void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
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307int msm_debugfs_late_init(struct drm_device *dev);
308int msm_rd_debugfs_init(struct drm_minor *minor);
85eac470 309void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
a7d3c950 310void msm_rd_dump_submit(struct msm_gem_submit *submit);
70c70f09 311int msm_perf_debugfs_init(struct drm_minor *minor);
85eac470 312void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
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313#else
314static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
315static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {}
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316static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
317static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
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318#endif
319
720c3bb8 320struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
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321void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
322 const char *dbgname);
323void msm_writel(u32 data, void __iomem *addr);
324u32 msm_readl(const void __iomem *addr);
325
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326#define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
327#define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
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328
329static inline int align_pitch(int width, int bpp)
330{
331 int bytespp = (bpp + 7) / 8;
332 /* adreno needs pitch aligned to 32 pixels: */
333 return bytespp * ALIGN(width, 32);
334}
335
336/* for the generated headers: */
337#define INVALID_IDX(idx) ({BUG(); 0;})
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338#define fui(x) ({BUG(); 0;})
339#define util_float_to_half(x) ({BUG(); 0;})
340
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341
342#define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
343
344/* for conditionally setting boolean flag(s): */
345#define COND(bool, val) ((bool) ? (val) : 0)
346
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347static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
348{
349 ktime_t now = ktime_get();
350 unsigned long remaining_jiffies;
351
352 if (ktime_compare(*timeout, now) < 0) {
353 remaining_jiffies = 0;
354 } else {
355 ktime_t rem = ktime_sub(*timeout, now);
356 struct timespec ts = ktime_to_timespec(rem);
357 remaining_jiffies = timespec_to_jiffies(&ts);
358 }
359
360 return remaining_jiffies;
361}
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362
363#endif /* __MSM_DRV_H__ */