drivers/gpu/drm/msm/msm_drv.h

   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>
  25 #include <linux/component.h>
  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>
  33 #include <linux/of_graph.h>
  34 #include <linux/of_device.h>
  35 #include <asm/sizes.h>
  36
  37 #include <drm/drmP.h>
  38 #include <drm/drm_atomic.h>
  39 #include <drm/drm_atomic_helper.h>
  40 #include <drm/drm_crtc_helper.h>
  41 #include <drm/drm_plane_helper.h>
  42 #include <drm/drm_fb_helper.h>
  43 #include <drm/msm_drm.h>
  44 #include <drm/drm_gem.h>
  45
  46 struct msm_kms;
  47 struct msm_gpu;
  48 struct msm_mmu;
  49 struct msm_mdss;
  50 struct msm_rd_state;
  51 struct msm_perf_state;
  52 struct msm_gem_submit;
  53 struct msm_fence_context;
  54 struct msm_fence_cb;
  55
  56 #define NUM_DOMAINS 2    /* one for KMS, then one per gpu core (?) */
  57
  58 struct msm_file_private {
  59         /* currently we don't do anything useful with this.. but when
  60          * per-context address spaces are supported we'd keep track of
  61          * the context's page-tables here.
  62          */
  63         int dummy;
  64 };
  65
  66 enum msm_mdp_plane_property {
  67         PLANE_PROP_ZPOS,
  68         PLANE_PROP_ALPHA,
  69         PLANE_PROP_PREMULTIPLIED,
  70         PLANE_PROP_MAX_NUM
  71 };
  72
  73 struct msm_vblank_ctrl {
  74         struct work_struct work;
  75         struct list_head event_list;
  76         spinlock_t lock;
  77 };
  78
  79 struct msm_drm_private {
  80
  81         struct drm_device *dev;
  82
  83         struct msm_kms *kms;
  84
  85         /* subordinate devices, if present: */
  86         struct platform_device *gpu_pdev;
  87
  88         /* top level MDSS wrapper device (for MDP5 only) */
  89         struct msm_mdss *mdss;
  90
  91         /* possibly this should be in the kms component, but it is
  92          * shared by both mdp4 and mdp5..
  93          */
  94         struct hdmi *hdmi;
  95
  96         /* eDP is for mdp5 only, but kms has not been created
  97          * when edp_bind() and edp_init() are called. Here is the only
  98          * place to keep the edp instance.
  99          */
 100         struct msm_edp *edp;
 101
 102         /* DSI is shared by mdp4 and mdp5 */
 103         struct msm_dsi *dsi[2];
 104
 105         /* when we have more than one 'msm_gpu' these need to be an array: */
 106         struct msm_gpu *gpu;
 107         struct msm_file_private *lastctx;
 108
 109         struct drm_fb_helper *fbdev;
 110
 111         struct msm_rd_state *rd;
 112         struct msm_perf_state *perf;
 113
 114         /* list of GEM objects: */
 115         struct list_head inactive_list;
 116
 117         struct workqueue_struct *wq;
 118         struct workqueue_struct *atomic_wq;
 119
 120         /* crtcs pending async atomic updates: */
 121         uint32_t pending_crtcs;
 122         wait_queue_head_t pending_crtcs_event;
 123
 124         /* registered MMUs: */
 125         unsigned int num_mmus;
 126         struct msm_mmu *mmus[NUM_DOMAINS];
 127
 128         unsigned int num_planes;
 129         struct drm_plane *planes[8];
 130
 131         unsigned int num_crtcs;
 132         struct drm_crtc *crtcs[8];
 133
 134         unsigned int num_encoders;
 135         struct drm_encoder *encoders[8];
 136
 137         unsigned int num_bridges;
 138         struct drm_bridge *bridges[8];
 139
 140         unsigned int num_connectors;
 141         struct drm_connector *connectors[8];
 142
 143         /* Properties */
 144         struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
 145
 146         /* VRAM carveout, used when no IOMMU: */
 147         struct {
 148                 unsigned long size;
 149                 dma_addr_t paddr;
 150                 /* NOTE: mm managed at the page level, size is in # of pages
 151                  * and position mm_node->start is in # of pages:
 152                  */
 153                 struct drm_mm mm;
 154         } vram;
 155
 156         struct notifier_block vmap_notifier;
 157         struct shrinker shrinker;
 158
 159         struct msm_vblank_ctrl vblank_ctrl;
 160
 161         /* task holding struct_mutex.. currently only used in submit path
 162          * to detect and reject faults from copy_from_user() for submit
 163          * ioctl.
 164          */
 165         struct task_struct *struct_mutex_task;
 166 };
 167
 168 struct msm_format {
 169         uint32_t pixel_format;
 170 };
 171
 172 int msm_atomic_check(struct drm_device *dev,
 173                      struct drm_atomic_state *state);
 174 int msm_atomic_commit(struct drm_device *dev,
 175                 struct drm_atomic_state *state, bool nonblock);
 176
 177 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
 178
 179 void msm_gem_submit_free(struct msm_gem_submit *submit);
 180 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 181                 struct drm_file *file);
 182
 183 void msm_gem_shrinker_init(struct drm_device *dev);
 184 void msm_gem_shrinker_cleanup(struct drm_device *dev);
 185
 186 int msm_gem_mmap_obj(struct drm_gem_object *obj,
 187                         struct vm_area_struct *vma);
 188 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 189 int msm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 190 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
 191 int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
 192                 uint32_t *iova);
 193 int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova);
 194 uint32_t msm_gem_iova(struct drm_gem_object *obj, int id);
 195 struct page **msm_gem_get_pages(struct drm_gem_object *obj);
 196 void msm_gem_put_pages(struct drm_gem_object *obj);
 197 void msm_gem_put_iova(struct drm_gem_object *obj, int id);
 198 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 199                 struct drm_mode_create_dumb *args);
 200 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 201                 uint32_t handle, uint64_t *offset);
 202 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
 203 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 204 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 205 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 206 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 207                 struct dma_buf_attachment *attach, struct sg_table *sg);
 208 int msm_gem_prime_pin(struct drm_gem_object *obj);
 209 void msm_gem_prime_unpin(struct drm_gem_object *obj);
 210 void *msm_gem_get_vaddr_locked(struct drm_gem_object *obj);
 211 void *msm_gem_get_vaddr(struct drm_gem_object *obj);
 212 void msm_gem_put_vaddr_locked(struct drm_gem_object *obj);
 213 void msm_gem_put_vaddr(struct drm_gem_object *obj);
 214 int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
 215 void msm_gem_purge(struct drm_gem_object *obj);
 216 void msm_gem_vunmap(struct drm_gem_object *obj);
 217 int msm_gem_sync_object(struct drm_gem_object *obj,
 218                 struct msm_fence_context *fctx, bool exclusive);
 219 void msm_gem_move_to_active(struct drm_gem_object *obj,
 220                 struct msm_gpu *gpu, bool exclusive, struct fence *fence);
 221 void msm_gem_move_to_inactive(struct drm_gem_object *obj);
 222 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
 223 int msm_gem_cpu_fini(struct drm_gem_object *obj);
 224 void msm_gem_free_object(struct drm_gem_object *obj);
 225 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 226                 uint32_t size, uint32_t flags, uint32_t *handle);
 227 struct drm_gem_object *msm_gem_new(struct drm_device *dev,
 228                 uint32_t size, uint32_t flags);
 229 struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 230                 struct dma_buf *dmabuf, struct sg_table *sgt);
 231
 232 int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id);
 233 void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id);
 234 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane);
 235 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
 236 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
 237 struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
 238                 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 239 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
 240                 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
 241
 242 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
 243 void msm_fbdev_free(struct drm_device *dev);
 244
 245 struct hdmi;
 246 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
 247                 struct drm_encoder *encoder);
 248 void __init msm_hdmi_register(void);
 249 void __exit msm_hdmi_unregister(void);
 250
 251 struct msm_edp;
 252 void __init msm_edp_register(void);
 253 void __exit msm_edp_unregister(void);
 254 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
 255                 struct drm_encoder *encoder);
 256
 257 struct msm_dsi;
 258 enum msm_dsi_encoder_id {
 259         MSM_DSI_VIDEO_ENCODER_ID = 0,
 260         MSM_DSI_CMD_ENCODER_ID = 1,
 261         MSM_DSI_ENCODER_NUM = 2
 262 };
 263 #ifdef CONFIG_DRM_MSM_DSI
 264 void __init msm_dsi_register(void);
 265 void __exit msm_dsi_unregister(void);
 266 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
 267                 struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM]);
 268 #else
 269 static inline void __init msm_dsi_register(void)
 270 {
 271 }
 272 static inline void __exit msm_dsi_unregister(void)
 273 {
 274 }
 275 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
 276                 struct drm_device *dev,
 277                 struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM])
 278 {
 279         return -EINVAL;
 280 }
 281 #endif
 282
 283 void __init msm_mdp_register(void);
 284 void __exit msm_mdp_unregister(void);
 285
 286 #ifdef CONFIG_DEBUG_FS
 287 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
 288 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
 289 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
 290 int msm_debugfs_late_init(struct drm_device *dev);
 291 int msm_rd_debugfs_init(struct drm_minor *minor);
 292 void msm_rd_debugfs_cleanup(struct drm_minor *minor);
 293 void msm_rd_dump_submit(struct msm_gem_submit *submit);
 294 int msm_perf_debugfs_init(struct drm_minor *minor);
 295 void msm_perf_debugfs_cleanup(struct drm_minor *minor);
 296 #else
 297 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
 298 static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {}
 299 #endif
 300
 301 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
 302                 const char *dbgname);
 303 void msm_writel(u32 data, void __iomem *addr);
 304 u32 msm_readl(const void __iomem *addr);
 305
 306 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 307 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 308
 309 static inline int align_pitch(int width, int bpp)
 310 {
 311         int bytespp = (bpp + 7) / 8;
 312         /* adreno needs pitch aligned to 32 pixels: */
 313         return bytespp * ALIGN(width, 32);
 314 }
 315
 316 /* for the generated headers: */
 317 #define INVALID_IDX(idx) ({BUG(); 0;})
 318 #define fui(x)                ({BUG(); 0;})
 319 #define util_float_to_half(x) ({BUG(); 0;})
 320
 321
 322 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
 323
 324 /* for conditionally setting boolean flag(s): */
 325 #define COND(bool, val) ((bool) ? (val) : 0)
 326
 327 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
 328 {
 329         ktime_t now = ktime_get();
 330         unsigned long remaining_jiffies;
 331
 332         if (ktime_compare(*timeout, now) < 0) {
 333                 remaining_jiffies = 0;
 334         } else {
 335                 ktime_t rem = ktime_sub(*timeout, now);
 336                 struct timespec ts = ktime_to_timespec(rem);
 337                 remaining_jiffies = timespec_to_jiffies(&ts);
 338         }
 339
 340         return remaining_jiffies;
 341 }
 342
 343 #endif /* __MSM_DRV_H__ */