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 struct msm_gem_address_space; 56 struct msm_gem_vma; 57 58 #define NUM_DOMAINS 2 /* one for KMS, then one per gpu core (?) */ 59 60 struct 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 }; 67 68 enum msm_mdp_plane_property { 69 PLANE_PROP_ZPOS, 70 PLANE_PROP_ALPHA, 71 PLANE_PROP_PREMULTIPLIED, 72 PLANE_PROP_MAX_NUM 73 }; 74 75 struct msm_vblank_ctrl { 76 struct work_struct work; 77 struct list_head event_list; 78 spinlock_t lock; 79 }; 80 81 struct msm_drm_private { 82 83 struct drm_device *dev; 84 85 struct msm_kms *kms; 86 87 /* subordinate devices, if present: */ 88 struct platform_device *gpu_pdev; 89 90 /* top level MDSS wrapper device (for MDP5 only) */ 91 struct msm_mdss *mdss; 92 93 /* possibly this should be in the kms component, but it is 94 * shared by both mdp4 and mdp5.. 95 */ 96 struct hdmi *hdmi; 97 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; 103 104 /* DSI is shared by mdp4 and mdp5 */ 105 struct msm_dsi *dsi[2]; 106 107 /* 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; 110 111 struct drm_fb_helper *fbdev; 112 113 struct msm_rd_state *rd; 114 struct msm_perf_state *perf; 115 116 /* list of GEM objects: */ 117 struct list_head inactive_list; 118 119 struct workqueue_struct *wq; 120 struct workqueue_struct *atomic_wq; 121 122 /* crtcs pending async atomic updates: */ 123 uint32_t pending_crtcs; 124 wait_queue_head_t pending_crtcs_event; 125 126 unsigned int num_planes; 127 struct drm_plane *planes[16]; 128 129 unsigned int num_crtcs; 130 struct drm_crtc *crtcs[8]; 131 132 unsigned int num_encoders; 133 struct drm_encoder *encoders[8]; 134 135 unsigned int num_bridges; 136 struct drm_bridge *bridges[8]; 137 138 unsigned int num_connectors; 139 struct drm_connector *connectors[8]; 140 141 /* Properties */ 142 struct drm_property *plane_property[PLANE_PROP_MAX_NUM]; 143 144 /* VRAM carveout, used when no IOMMU: */ 145 struct { 146 unsigned long size; 147 dma_addr_t paddr; 148 /* NOTE: mm managed at the page level, size is in # of pages 149 * and position mm_node->start is in # of pages: 150 */ 151 struct drm_mm mm; 152 spinlock_t lock; /* Protects drm_mm node allocation/removal */ 153 } vram; 154 155 struct notifier_block vmap_notifier; 156 struct shrinker shrinker; 157 158 struct msm_vblank_ctrl vblank_ctrl; 159 160 /* task holding struct_mutex.. currently only used in submit path 161 * to detect and reject faults from copy_from_user() for submit 162 * ioctl. 163 */ 164 struct task_struct *struct_mutex_task; 165 }; 166 167 struct msm_format { 168 uint32_t pixel_format; 169 }; 170 171 int msm_atomic_check(struct drm_device *dev, 172 struct drm_atomic_state *state); 173 int msm_atomic_commit(struct drm_device *dev, 174 struct drm_atomic_state *state, bool nonblock); 175 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev); 176 void msm_atomic_state_clear(struct drm_atomic_state *state); 177 void msm_atomic_state_free(struct drm_atomic_state *state); 178 179 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace, 180 struct msm_gem_vma *vma, struct sg_table *sgt); 181 int msm_gem_map_vma(struct msm_gem_address_space *aspace, 182 struct msm_gem_vma *vma, struct sg_table *sgt, int npages); 183 184 void msm_gem_address_space_put(struct msm_gem_address_space *aspace); 185 186 struct msm_gem_address_space * 187 msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain, 188 const char *name); 189 190 void msm_gem_submit_free(struct msm_gem_submit *submit); 191 int msm_ioctl_gem_submit(struct drm_device *dev, void *data, 192 struct drm_file *file); 193 194 void msm_gem_shrinker_init(struct drm_device *dev); 195 void msm_gem_shrinker_cleanup(struct drm_device *dev); 196 197 int msm_gem_mmap_obj(struct drm_gem_object *obj, 198 struct vm_area_struct *vma); 199 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 200 int msm_gem_fault(struct vm_fault *vmf); 201 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj); 202 int msm_gem_get_iova(struct drm_gem_object *obj, 203 struct msm_gem_address_space *aspace, uint64_t *iova); 204 uint64_t msm_gem_iova(struct drm_gem_object *obj, 205 struct msm_gem_address_space *aspace); 206 struct page **msm_gem_get_pages(struct drm_gem_object *obj); 207 void msm_gem_put_pages(struct drm_gem_object *obj); 208 void msm_gem_put_iova(struct drm_gem_object *obj, 209 struct msm_gem_address_space *aspace); 210 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 211 struct drm_mode_create_dumb *args); 212 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 213 uint32_t handle, uint64_t *offset); 214 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj); 215 void *msm_gem_prime_vmap(struct drm_gem_object *obj); 216 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 217 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); 218 struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj); 219 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, 220 struct dma_buf_attachment *attach, struct sg_table *sg); 221 int msm_gem_prime_pin(struct drm_gem_object *obj); 222 void msm_gem_prime_unpin(struct drm_gem_object *obj); 223 void *msm_gem_get_vaddr(struct drm_gem_object *obj); 224 void msm_gem_put_vaddr(struct drm_gem_object *obj); 225 int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv); 226 int msm_gem_sync_object(struct drm_gem_object *obj, 227 struct msm_fence_context *fctx, bool exclusive); 228 void msm_gem_move_to_active(struct drm_gem_object *obj, 229 struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence); 230 void msm_gem_move_to_inactive(struct drm_gem_object *obj); 231 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout); 232 int msm_gem_cpu_fini(struct drm_gem_object *obj); 233 void msm_gem_free_object(struct drm_gem_object *obj); 234 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 235 uint32_t size, uint32_t flags, uint32_t *handle); 236 struct drm_gem_object *msm_gem_new(struct drm_device *dev, 237 uint32_t size, uint32_t flags); 238 struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 239 uint32_t size, uint32_t flags); 240 struct drm_gem_object *msm_gem_import(struct drm_device *dev, 241 struct dma_buf *dmabuf, struct sg_table *sgt); 242 243 int msm_framebuffer_prepare(struct drm_framebuffer *fb, 244 struct msm_gem_address_space *aspace); 245 void msm_framebuffer_cleanup(struct drm_framebuffer *fb, 246 struct msm_gem_address_space *aspace); 247 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, 248 struct msm_gem_address_space *aspace, int plane); 249 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane); 250 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb); 251 struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev, 252 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); 253 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev, 254 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd); 255 256 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev); 257 void msm_fbdev_free(struct drm_device *dev); 258 259 struct hdmi; 260 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev, 261 struct drm_encoder *encoder); 262 void __init msm_hdmi_register(void); 263 void __exit msm_hdmi_unregister(void); 264 265 struct msm_edp; 266 void __init msm_edp_register(void); 267 void __exit msm_edp_unregister(void); 268 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev, 269 struct drm_encoder *encoder); 270 271 struct msm_dsi; 272 #ifdef CONFIG_DRM_MSM_DSI 273 void __init msm_dsi_register(void); 274 void __exit msm_dsi_unregister(void); 275 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev, 276 struct drm_encoder *encoder); 277 #else 278 static inline void __init msm_dsi_register(void) 279 { 280 } 281 static inline void __exit msm_dsi_unregister(void) 282 { 283 } 284 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, 285 struct drm_device *dev, 286 struct drm_encoder *encoder) 287 { 288 return -EINVAL; 289 } 290 #endif 291 292 void __init msm_mdp_register(void); 293 void __exit msm_mdp_unregister(void); 294 295 #ifdef CONFIG_DEBUG_FS 296 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 297 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m); 298 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 299 int msm_debugfs_late_init(struct drm_device *dev); 300 int msm_rd_debugfs_init(struct drm_minor *minor); 301 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv); 302 void msm_rd_dump_submit(struct msm_gem_submit *submit); 303 int msm_perf_debugfs_init(struct drm_minor *minor); 304 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv); 305 #else 306 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; } 307 static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {} 308 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {} 309 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {} 310 #endif 311 312 struct clk *msm_clk_get(struct platform_device *pdev, const char *name); 313 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, 314 const char *dbgname); 315 void msm_writel(u32 data, void __iomem *addr); 316 u32 msm_readl(const void __iomem *addr); 317 318 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) 319 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) 320 321 static inline int align_pitch(int width, int bpp) 322 { 323 int bytespp = (bpp + 7) / 8; 324 /* adreno needs pitch aligned to 32 pixels: */ 325 return bytespp * ALIGN(width, 32); 326 } 327 328 /* for the generated headers: */ 329 #define INVALID_IDX(idx) ({BUG(); 0;}) 330 #define fui(x) ({BUG(); 0;}) 331 #define util_float_to_half(x) ({BUG(); 0;}) 332 333 334 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT) 335 336 /* for conditionally setting boolean flag(s): */ 337 #define COND(bool, val) ((bool) ? (val) : 0) 338 339 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout) 340 { 341 ktime_t now = ktime_get(); 342 unsigned long remaining_jiffies; 343 344 if (ktime_compare(*timeout, now) < 0) { 345 remaining_jiffies = 0; 346 } else { 347 ktime_t rem = ktime_sub(*timeout, now); 348 struct timespec ts = ktime_to_timespec(rem); 349 remaining_jiffies = timespec_to_jiffies(&ts); 350 } 351 352 return remaining_jiffies; 353 } 354 355 #endif /* __MSM_DRV_H__ */ 356