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        /* crtcs pending async atomic updates: */
 121        uint32_t pending_crtcs;
 122        wait_queue_head_t pending_crtcs_event;
 123
 124        unsigned int num_planes;
 125        struct drm_plane *planes[16];
 126
 127        unsigned int num_crtcs;
 128        struct drm_crtc *crtcs[8];
 129
 130        unsigned int num_encoders;
 131        struct drm_encoder *encoders[8];
 132
 133        unsigned int num_bridges;
 134        struct drm_bridge *bridges[8];
 135
 136        unsigned int num_connectors;
 137        struct drm_connector *connectors[8];
 138
 139        /* Properties */
 140        struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
 141
 142        /* VRAM carveout, used when no IOMMU: */
 143        struct {
 144                unsigned long size;
 145                dma_addr_t paddr;
 146                /* NOTE: mm managed at the page level, size is in # of pages
 147                 * and position mm_node->start is in # of pages:
 148                 */
 149                struct drm_mm mm;
 150                spinlock_t lock; /* Protects drm_mm node allocation/removal */
 151        } vram;
 152
 153        struct notifier_block vmap_notifier;
 154        struct shrinker shrinker;
 155
 156        struct msm_vblank_ctrl vblank_ctrl;
 157};
 158
 159struct msm_format {
 160        uint32_t pixel_format;
 161};
 162
 163int msm_atomic_commit(struct drm_device *dev,
 164                struct drm_atomic_state *state, bool nonblock);
 165struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
 166void msm_atomic_state_clear(struct drm_atomic_state *state);
 167void msm_atomic_state_free(struct drm_atomic_state *state);
 168
 169void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
 170                struct msm_gem_vma *vma, struct sg_table *sgt);
 171int msm_gem_map_vma(struct msm_gem_address_space *aspace,
 172                struct msm_gem_vma *vma, struct sg_table *sgt, int npages);
 173
 174void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
 175
 176struct msm_gem_address_space *
 177msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain,
 178                const char *name);
 179
 180void msm_gem_submit_free(struct msm_gem_submit *submit);
 181int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 182                struct drm_file *file);
 183
 184void msm_gem_shrinker_init(struct drm_device *dev);
 185void msm_gem_shrinker_cleanup(struct drm_device *dev);
 186
 187int msm_gem_mmap_obj(struct drm_gem_object *obj,
 188                        struct vm_area_struct *vma);
 189int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 190int msm_gem_fault(struct vm_fault *vmf);
 191uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
 192int msm_gem_get_iova(struct drm_gem_object *obj,
 193                struct msm_gem_address_space *aspace, uint64_t *iova);
 194uint64_t msm_gem_iova(struct drm_gem_object *obj,
 195                struct msm_gem_address_space *aspace);
 196struct page **msm_gem_get_pages(struct drm_gem_object *obj);
 197void msm_gem_put_pages(struct drm_gem_object *obj);
 198void msm_gem_put_iova(struct drm_gem_object *obj,
 199                struct msm_gem_address_space *aspace);
 200int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 201                struct drm_mode_create_dumb *args);
 202int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 203                uint32_t handle, uint64_t *offset);
 204struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
 205void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 206void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 207int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 208struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
 209struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 210                struct dma_buf_attachment *attach, struct sg_table *sg);
 211int msm_gem_prime_pin(struct drm_gem_object *obj);
 212void msm_gem_prime_unpin(struct drm_gem_object *obj);
 213void *msm_gem_get_vaddr(struct drm_gem_object *obj);
 214void *msm_gem_get_vaddr_active(struct drm_gem_object *obj);
 215void msm_gem_put_vaddr(struct drm_gem_object *obj);
 216int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
 217int msm_gem_sync_object(struct drm_gem_object *obj,
 218                struct msm_fence_context *fctx, bool exclusive);
 219void msm_gem_move_to_active(struct drm_gem_object *obj,
 220                struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence);
 221void msm_gem_move_to_inactive(struct drm_gem_object *obj);
 222int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
 223int msm_gem_cpu_fini(struct drm_gem_object *obj);
 224void msm_gem_free_object(struct drm_gem_object *obj);
 225int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 226                uint32_t size, uint32_t flags, uint32_t *handle);
 227struct drm_gem_object *msm_gem_new(struct drm_device *dev,
 228                uint32_t size, uint32_t flags);
 229struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev,
 230                uint32_t size, uint32_t flags);
 231void *msm_gem_kernel_new(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);
 234void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
 235                uint32_t flags, struct msm_gem_address_space *aspace,
 236                struct drm_gem_object **bo, uint64_t *iova);
 237struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 238                struct dma_buf *dmabuf, struct sg_table *sgt);
 239
 240int msm_framebuffer_prepare(struct drm_framebuffer *fb,
 241                struct msm_gem_address_space *aspace);
 242void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
 243                struct msm_gem_address_space *aspace);
 244uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
 245                struct msm_gem_address_space *aspace, int plane);
 246struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
 247const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
 248struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
 249                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
 250struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
 251                int w, int h, int p, uint32_t format);
 252
 253struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
 254void msm_fbdev_free(struct drm_device *dev);
 255
 256struct hdmi;
 257int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
 258                struct drm_encoder *encoder);
 259void __init msm_hdmi_register(void);
 260void __exit msm_hdmi_unregister(void);
 261
 262struct msm_edp;
 263void __init msm_edp_register(void);
 264void __exit msm_edp_unregister(void);
 265int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
 266                struct drm_encoder *encoder);
 267
 268struct msm_dsi;
 269#ifdef CONFIG_DRM_MSM_DSI
 270void __init msm_dsi_register(void);
 271void __exit msm_dsi_unregister(void);
 272int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
 273                         struct drm_encoder *encoder);
 274#else
 275static inline void __init msm_dsi_register(void)
 276{
 277}
 278static inline void __exit msm_dsi_unregister(void)
 279{
 280}
 281static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
 282                                       struct drm_device *dev,
 283                                       struct drm_encoder *encoder)
 284{
 285        return -EINVAL;
 286}
 287#endif
 288
 289void __init msm_mdp_register(void);
 290void __exit msm_mdp_unregister(void);
 291
 292#ifdef CONFIG_DEBUG_FS
 293void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
 294void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
 295void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
 296int msm_debugfs_late_init(struct drm_device *dev);
 297int msm_rd_debugfs_init(struct drm_minor *minor);
 298void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
 299void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
 300                const char *fmt, ...);
 301int msm_perf_debugfs_init(struct drm_minor *minor);
 302void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
 303#else
 304static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
 305static inline void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
 306                const char *fmt, ...) {}
 307static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
 308static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
 309#endif
 310
 311struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
 312void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
 313                const char *dbgname);
 314void msm_writel(u32 data, void __iomem *addr);
 315u32 msm_readl(const void __iomem *addr);
 316
 317struct msm_gpu_submitqueue;
 318int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx);
 319struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx,
 320                u32 id);
 321int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx,
 322                u32 prio, u32 flags, u32 *id);
 323int msm_submitqueue_remove(struct msm_file_private *ctx, u32 id);
 324void msm_submitqueue_close(struct msm_file_private *ctx);
 325
 326void msm_submitqueue_destroy(struct kref *kref);
 327
 328
 329#define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
 330#define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
 331
 332static inline int align_pitch(int width, int bpp)
 333{
 334        int bytespp = (bpp + 7) / 8;
 335        /* adreno needs pitch aligned to 32 pixels: */
 336        return bytespp * ALIGN(width, 32);
 337}
 338
 339/* for the generated headers: */
 340#define INVALID_IDX(idx) ({BUG(); 0;})
 341#define fui(x)                ({BUG(); 0;})
 342#define util_float_to_half(x) ({BUG(); 0;})
 343
 344
 345#define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
 346
 347/* for conditionally setting boolean flag(s): */
 348#define COND(bool, val) ((bool) ? (val) : 0)
 349
 350static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
 351{
 352        ktime_t now = ktime_get();
 353        unsigned long remaining_jiffies;
 354
 355        if (ktime_compare(*timeout, now) < 0) {
 356                remaining_jiffies = 0;
 357        } else {
 358                ktime_t rem = ktime_sub(*timeout, now);
 359                struct timespec ts = ktime_to_timespec(rem);
 360                remaining_jiffies = timespec_to_jiffies(&ts);
 361        }
 362
 363        return remaining_jiffies;
 364}
 365
 366#endif /* __MSM_DRV_H__ */
 367