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 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 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 /* task holding struct_mutex.. currently only used in submit path 159 * to detect and reject faults from copy_from_user() for submit 160 * ioctl. 161 */ 162 struct task_struct *struct_mutex_task; 163 }; 164 165 struct msm_format { 166 uint32_t pixel_format; 167 }; 168 169 int msm_atomic_check(struct drm_device *dev, 170 struct drm_atomic_state *state); 171 int msm_atomic_commit(struct drm_device *dev, 172 struct drm_atomic_state *state, bool nonblock); 173 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev); 174 void msm_atomic_state_clear(struct drm_atomic_state *state); 175 void msm_atomic_state_free(struct drm_atomic_state *state); 176 177 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace, 178 struct msm_gem_vma *vma, struct sg_table *sgt); 179 int msm_gem_map_vma(struct msm_gem_address_space *aspace, 180 struct msm_gem_vma *vma, struct sg_table *sgt, int npages); 181 182 void msm_gem_address_space_put(struct msm_gem_address_space *aspace); 183 184 struct msm_gem_address_space * 185 msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain, 186 const char *name); 187 188 void msm_gem_submit_free(struct msm_gem_submit *submit); 189 int msm_ioctl_gem_submit(struct drm_device *dev, void *data, 190 struct drm_file *file); 191 192 void msm_gem_shrinker_init(struct drm_device *dev); 193 void msm_gem_shrinker_cleanup(struct drm_device *dev); 194 195 int msm_gem_mmap_obj(struct drm_gem_object *obj, 196 struct vm_area_struct *vma); 197 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 198 int msm_gem_fault(struct vm_fault *vmf); 199 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj); 200 int msm_gem_get_iova(struct drm_gem_object *obj, 201 struct msm_gem_address_space *aspace, uint64_t *iova); 202 uint64_t msm_gem_iova(struct drm_gem_object *obj, 203 struct msm_gem_address_space *aspace); 204 struct page **msm_gem_get_pages(struct drm_gem_object *obj); 205 void msm_gem_put_pages(struct drm_gem_object *obj); 206 void msm_gem_put_iova(struct drm_gem_object *obj, 207 struct msm_gem_address_space *aspace); 208 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 209 struct drm_mode_create_dumb *args); 210 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 211 uint32_t handle, uint64_t *offset); 212 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj); 213 void *msm_gem_prime_vmap(struct drm_gem_object *obj); 214 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); 215 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); 216 struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj); 217 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, 218 struct dma_buf_attachment *attach, struct sg_table *sg); 219 int msm_gem_prime_pin(struct drm_gem_object *obj); 220 void msm_gem_prime_unpin(struct drm_gem_object *obj); 221 void *msm_gem_get_vaddr(struct drm_gem_object *obj); 222 void msm_gem_put_vaddr(struct drm_gem_object *obj); 223 int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv); 224 int msm_gem_sync_object(struct drm_gem_object *obj, 225 struct msm_fence_context *fctx, bool exclusive); 226 void msm_gem_move_to_active(struct drm_gem_object *obj, 227 struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence); 228 void msm_gem_move_to_inactive(struct drm_gem_object *obj); 229 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout); 230 int msm_gem_cpu_fini(struct drm_gem_object *obj); 231 void msm_gem_free_object(struct drm_gem_object *obj); 232 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 233 uint32_t size, uint32_t flags, uint32_t *handle); 234 struct drm_gem_object *msm_gem_new(struct drm_device *dev, 235 uint32_t size, uint32_t flags); 236 struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 237 uint32_t size, uint32_t flags); 238 void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 239 uint32_t flags, struct msm_gem_address_space *aspace, 240 struct drm_gem_object **bo, uint64_t *iova); 241 void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 242 uint32_t flags, struct msm_gem_address_space *aspace, 243 struct drm_gem_object **bo, uint64_t *iova); 244 struct drm_gem_object *msm_gem_import(struct drm_device *dev, 245 struct dma_buf *dmabuf, struct sg_table *sgt); 246 247 int msm_framebuffer_prepare(struct drm_framebuffer *fb, 248 struct msm_gem_address_space *aspace); 249 void msm_framebuffer_cleanup(struct drm_framebuffer *fb, 250 struct msm_gem_address_space *aspace); 251 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, 252 struct msm_gem_address_space *aspace, int plane); 253 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane); 254 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb); 255 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev, 256 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd); 257 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev, 258 int w, int h, int p, uint32_t format); 259 260 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev); 261 void msm_fbdev_free(struct drm_device *dev); 262 263 struct hdmi; 264 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev, 265 struct drm_encoder *encoder); 266 void __init msm_hdmi_register(void); 267 void __exit msm_hdmi_unregister(void); 268 269 struct msm_edp; 270 void __init msm_edp_register(void); 271 void __exit msm_edp_unregister(void); 272 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev, 273 struct drm_encoder *encoder); 274 275 struct msm_dsi; 276 #ifdef CONFIG_DRM_MSM_DSI 277 void __init msm_dsi_register(void); 278 void __exit msm_dsi_unregister(void); 279 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev, 280 struct drm_encoder *encoder); 281 #else 282 static inline void __init msm_dsi_register(void) 283 { 284 } 285 static inline void __exit msm_dsi_unregister(void) 286 { 287 } 288 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, 289 struct drm_device *dev, 290 struct drm_encoder *encoder) 291 { 292 return -EINVAL; 293 } 294 #endif 295 296 void __init msm_mdp_register(void); 297 void __exit msm_mdp_unregister(void); 298 299 #ifdef CONFIG_DEBUG_FS 300 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 301 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m); 302 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 303 int msm_debugfs_late_init(struct drm_device *dev); 304 int msm_rd_debugfs_init(struct drm_minor *minor); 305 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv); 306 void msm_rd_dump_submit(struct msm_gem_submit *submit); 307 int msm_perf_debugfs_init(struct drm_minor *minor); 308 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv); 309 #else 310 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; } 311 static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {} 312 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {} 313 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {} 314 #endif 315 316 struct clk *msm_clk_get(struct platform_device *pdev, const char *name); 317 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, 318 const char *dbgname); 319 void msm_writel(u32 data, void __iomem *addr); 320 u32 msm_readl(const void __iomem *addr); 321 322 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) 323 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) 324 325 static inline int align_pitch(int width, int bpp) 326 { 327 int bytespp = (bpp + 7) / 8; 328 /* adreno needs pitch aligned to 32 pixels: */ 329 return bytespp * ALIGN(width, 32); 330 } 331 332 /* for the generated headers: */ 333 #define INVALID_IDX(idx) ({BUG(); 0;}) 334 #define fui(x) ({BUG(); 0;}) 335 #define util_float_to_half(x) ({BUG(); 0;}) 336 337 338 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT) 339 340 /* for conditionally setting boolean flag(s): */ 341 #define COND(bool, val) ((bool) ? (val) : 0) 342 343 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout) 344 { 345 ktime_t now = ktime_get(); 346 unsigned long remaining_jiffies; 347 348 if (ktime_compare(*timeout, now) < 0) { 349 remaining_jiffies = 0; 350 } else { 351 ktime_t rem = ktime_sub(*timeout, now); 352 struct timespec ts = ktime_to_timespec(rem); 353 remaining_jiffies = timespec_to_jiffies(&ts); 354 } 355 356 return remaining_jiffies; 357 } 358 359 #endif /* __MSM_DRV_H__ */ 360