LXR linux/drivers/gpu/drm/msm/msm

   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
  46struct msm_kms;
  47struct msm_gpu;
  48struct msm_mmu;
  49struct msm_mdss;
  50struct msm_rd_state;
  51struct msm_perf_state;
  52struct msm_gem_submit;
  53struct msm_fence_context;
  54struct msm_gem_address_space;
  55struct msm_gem_vma;
  56
  57struct msm_file_private {
  58        rwlock_t queuelock;
  59        struct list_head submitqueues;
  60        int queueid;
  61};
  62
  63enum msm_mdp_plane_property {
  64        PLANE_PROP_ZPOS,
  65        PLANE_PROP_ALPHA,
  66        PLANE_PROP_PREMULTIPLIED,
  67        PLANE_PROP_MAX_NUM
  68};
  69
  70struct msm_vblank_ctrl {
  71        struct work_struct work;
  72        struct list_head event_list;
  73        spinlock_t lock;
  74};
  75
  76#define MSM_GPU_MAX_RINGS 4
  77
  78struct msm_drm_private {
  79
  80        struct drm_device *dev;
  81
  82        struct msm_kms *kms;
  83
  84        /* subordinate devices, if present: */
  85        struct platform_device *gpu_pdev;
  86
  87        /* top level MDSS wrapper device (for MDP5 only) */
  88        struct msm_mdss *mdss;
  89
  90        /* possibly this should be in the kms component, but it is
  91         * shared by both mdp4 and mdp5..
  92         */
  93        struct hdmi *hdmi;
  94
  95        /* eDP is for mdp5 only, but kms has not been created
  96         * when edp_bind() and edp_init() are called. Here is the only
  97         * place to keep the edp instance.
  98         */
  99        struct msm_edp *edp;
 100
 101        /* DSI is shared by mdp4 and mdp5 */
 102        struct msm_dsi *dsi[2];
 103
 104        /* when we have more than one 'msm_gpu' these need to be an array: */
 105        struct msm_gpu *gpu;
 106        struct msm_file_private *lastctx;
 107
 108        struct drm_fb_helper *fbdev;
 109
 110        struct msm_rd_state *rd;       /* debugfs to dump all submits */
 111        struct msm_rd_state *hangrd;   /* debugfs to dump hanging submits */
 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        unsigned int num_planes;
 121        struct drm_plane *planes[16];
 122
 123        unsigned int num_crtcs;
 124        struct drm_crtc *crtcs[8];
 125
 126        unsigned int num_encoders;
 127        struct drm_encoder *encoders[8];
 128
 129        unsigned int num_bridges;
 130        struct drm_bridge *bridges[8];
 131
 132        unsigned int num_connectors;
 133        struct drm_connector *connectors[8];
 134
 135        /* Properties */
 136        struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
 137
 138        /* VRAM carveout, used when no IOMMU: */
 139        struct {
 140                unsigned long size;
 141                dma_addr_t paddr;
 142                /* NOTE: mm managed at the page level, size is in # of pages
 143                 * and position mm_node->start is in # of pages:
 144                 */
 145                struct drm_mm mm;
 146                spinlock_t lock; /* Protects drm_mm node allocation/removal */
 147        } vram;
 148
 149        struct notifier_block vmap_notifier;
 150        struct shrinker shrinker;
 151
 152        struct msm_vblank_ctrl vblank_ctrl;
 153};
 154
 155struct msm_format {
 156        uint32_t pixel_format;
 157};
 158
 159int msm_atomic_prepare_fb(struct drm_plane *plane,
 160                          struct drm_plane_state *new_state);
 161void msm_atomic_commit_tail(struct drm_atomic_state *state);
 162struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
 163void msm_atomic_state_clear(struct drm_atomic_state *state);
 164void msm_atomic_state_free(struct drm_atomic_state *state);
 165
 166void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
 167                struct msm_gem_vma *vma, struct sg_table *sgt);
 168int msm_gem_map_vma(struct msm_gem_address_space *aspace,
 169                struct msm_gem_vma *vma, struct sg_table *sgt, int npages);
 170
 171void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
 172
 173struct msm_gem_address_space *
 174msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain,
 175                const char *name);
 176
 177void msm_gem_submit_free(struct msm_gem_submit *submit);
 178int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 179                struct drm_file *file);
 180
 181void msm_gem_shrinker_init(struct drm_device *dev);
 182void msm_gem_shrinker_cleanup(struct drm_device *dev);
 183
 184int msm_gem_mmap_obj(struct drm_gem_object *obj,
 185                        struct vm_area_struct *vma);
 186int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 187int msm_gem_fault(struct vm_fault *vmf);
 188uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
 189int msm_gem_get_iova(struct drm_gem_object *obj,
 190                struct msm_gem_address_space *aspace, uint64_t *iova);
 191uint64_t msm_gem_iova(struct drm_gem_object *obj,
 192                struct msm_gem_address_space *aspace);
 193struct page **msm_gem_get_pages(struct drm_gem_object *obj);
 194void msm_gem_put_pages(struct drm_gem_object *obj);
 195void msm_gem_put_iova(struct drm_gem_object *obj,
 196                struct msm_gem_address_space *aspace);
 197int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 198                struct drm_mode_create_dumb *args);
 199int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 200                uint32_t handle, uint64_t *offset);
 201struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
 202void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 203void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 204int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 205struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
 206struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 207                struct dma_buf_attachment *attach, struct sg_table *sg);
 208int msm_gem_prime_pin(struct drm_gem_object *obj);
 209void msm_gem_prime_unpin(struct drm_gem_object *obj);
 210void *msm_gem_get_vaddr(struct drm_gem_object *obj);
 211void *msm_gem_get_vaddr_active(struct drm_gem_object *obj);
 212void msm_gem_put_vaddr(struct drm_gem_object *obj);
 213int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
 214int msm_gem_sync_object(struct drm_gem_object *obj,
 215                struct msm_fence_context *fctx, bool exclusive);
 216void msm_gem_move_to_active(struct drm_gem_object *obj,
 217                struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence);
 218void msm_gem_move_to_inactive(struct drm_gem_object *obj);
 219int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
 220int msm_gem_cpu_fini(struct drm_gem_object *obj);
 221void msm_gem_free_object(struct drm_gem_object *obj);
 222int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 223                uint32_t size, uint32_t flags, uint32_t *handle);
 224struct drm_gem_object *msm_gem_new(struct drm_device *dev,
 225                uint32_t size, uint32_t flags);
 226struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev,
 227                uint32_t size, uint32_t flags);
 228void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
 229                uint32_t flags, struct msm_gem_address_space *aspace,
 230                struct drm_gem_object **bo, uint64_t *iova);
 231void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
 232                uint32_t flags, struct msm_gem_address_space *aspace,
 233                struct drm_gem_object **bo, uint64_t *iova);
 234struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 235                struct dma_buf *dmabuf, struct sg_table *sgt);
 236
 237int msm_framebuffer_prepare(struct drm_framebuffer *fb,
 238                struct msm_gem_address_space *aspace);
 239void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
 240                struct msm_gem_address_space *aspace);
 241uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
 242                struct msm_gem_address_space *aspace, int plane);
 243struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
 244const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
 245struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
 246                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
 247struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
 248                int w, int h, int p, uint32_t format);
 249
 250struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
 251void msm_fbdev_free(struct drm_device *dev);
 252
 253struct hdmi;
 254int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
 255                struct drm_encoder *encoder);
 256void __init msm_hdmi_register(void);
 257void __exit msm_hdmi_unregister(void);
 258
 259struct msm_edp;
 260void __init msm_edp_register(void);
 261void __exit msm_edp_unregister(void);
 262int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
 263                struct drm_encoder *encoder);
 264
 265struct msm_dsi;
 266#ifdef CONFIG_DRM_MSM_DSI
 267void __init msm_dsi_register(void);
 268void __exit msm_dsi_unregister(void);
 269int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
 270                         struct drm_encoder *encoder);
 271#else
 272static inline void __init msm_dsi_register(void)
 273{
 274}
 275static inline void __exit msm_dsi_unregister(void)
 276{
 277}
 278static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
 279                                       struct drm_device *dev,
 280                                       struct drm_encoder *encoder)
 281{
 282        return -EINVAL;
 283}
 284#endif
 285
 286void __init msm_mdp_register(void);
 287void __exit msm_mdp_unregister(void);
 288
 289#ifdef CONFIG_DEBUG_FS
 290void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
 291void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
 292void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
 293int msm_debugfs_late_init(struct drm_device *dev);
 294int msm_rd_debugfs_init(struct drm_minor *minor);
 295void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
 296void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
 297                const char *fmt, ...);
 298int msm_perf_debugfs_init(struct drm_minor *minor);
 299void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
 300#else
 301static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
 302static inline void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
 303                const char *fmt, ...) {}
 304static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
 305static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
 306#endif
 307
 308struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
 309void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
 310                const char *dbgname);
 311void msm_writel(u32 data, void __iomem *addr);
 312u32 msm_readl(const void __iomem *addr);
 313
 314struct msm_gpu_submitqueue;
 315int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx);
 316struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx,
 317                u32 id);
 318int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx,
 319                u32 prio, u32 flags, u32 *id);
 320int msm_submitqueue_remove(struct msm_file_private *ctx, u32 id);
 321void msm_submitqueue_close(struct msm_file_private *ctx);
 322
 323void msm_submitqueue_destroy(struct kref *kref);
 324
 325
 326#define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
 327#define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
 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;})
 338#define fui(x)                ({BUG(); 0;})
 339#define util_float_to_half(x) ({BUG(); 0;})
 340
 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
 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}
 362
 363#endif /* __MSM_DRV_H__ */
 364