2 * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
3 * Copyright (C) 2013 Red Hat
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published by
8 * the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <http://www.gnu.org/licenses/>.
22 #include <linux/kernel.h>
23 #include <linux/clk.h>
24 #include <linux/cpufreq.h>
25 #include <linux/module.h>
26 #include <linux/component.h>
27 #include <linux/platform_device.h>
29 #include <linux/pm_runtime.h>
30 #include <linux/slab.h>
31 #include <linux/list.h>
32 #include <linux/iommu.h>
33 #include <linux/types.h>
34 #include <linux/of_graph.h>
35 #include <linux/of_device.h>
36 #include <asm/sizes.h>
37 #include <linux/kthread.h>
40 #include <drm/drm_atomic.h>
41 #include <drm/drm_atomic_helper.h>
42 #include <drm/drm_plane_helper.h>
43 #include <drm/drm_probe_helper.h>
44 #include <drm/drm_fb_helper.h>
45 #include <drm/msm_drm.h>
46 #include <drm/drm_gem.h>
53 struct msm_perf_state;
54 struct msm_gem_submit;
55 struct msm_fence_context;
56 struct msm_gem_address_space;
61 #define MAX_ENCODERS 8
63 #define MAX_CONNECTORS 8
65 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
67 struct msm_file_private {
69 struct list_head submitqueues;
73 enum msm_mdp_plane_property {
76 PLANE_PROP_PREMULTIPLIED,
80 #define MSM_GPU_MAX_RINGS 4
81 #define MAX_H_TILES_PER_DISPLAY 2
84 * enum msm_display_caps - features/capabilities supported by displays
85 * @MSM_DISPLAY_CAP_VID_MODE: Video or "active" mode supported
86 * @MSM_DISPLAY_CAP_CMD_MODE: Command mode supported
87 * @MSM_DISPLAY_CAP_HOT_PLUG: Hot plug detection supported
88 * @MSM_DISPLAY_CAP_EDID: EDID supported
90 enum msm_display_caps {
91 MSM_DISPLAY_CAP_VID_MODE = BIT(0),
92 MSM_DISPLAY_CAP_CMD_MODE = BIT(1),
93 MSM_DISPLAY_CAP_HOT_PLUG = BIT(2),
94 MSM_DISPLAY_CAP_EDID = BIT(3),
98 * enum msm_event_wait - type of HW events to wait for
99 * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
100 * @MSM_ENC_TX_COMPLETE - wait for the HW to transfer the frame to panel
101 * @MSM_ENC_VBLANK - wait for the HW VBLANK event (for driver-internal waiters)
103 enum msm_event_wait {
104 MSM_ENC_COMMIT_DONE = 0,
110 * struct msm_display_topology - defines a display topology pipeline
111 * @num_lm: number of layer mixers used
112 * @num_enc: number of compression encoder blocks used
113 * @num_intf: number of interfaces the panel is mounted on
115 struct msm_display_topology {
122 * struct msm_display_info - defines display properties
123 * @intf_type: DRM_MODE_ENCODER_ type
124 * @capabilities: Bitmask of display flags
125 * @num_of_h_tiles: Number of horizontal tiles in case of split interface
126 * @h_tile_instance: Controller instance used per tile. Number of elements is
127 * based on num_of_h_tiles
128 * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
129 * used instead of panel TE in cmd mode panels
131 struct msm_display_info {
133 uint32_t capabilities;
134 uint32_t num_of_h_tiles;
135 uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
136 bool is_te_using_watchdog_timer;
139 /* Commit/Event thread specific structure */
140 struct msm_drm_thread {
141 struct drm_device *dev;
142 struct task_struct *thread;
143 unsigned int crtc_id;
144 struct kthread_worker worker;
147 struct msm_drm_private {
149 struct drm_device *dev;
153 /* subordinate devices, if present: */
154 struct platform_device *gpu_pdev;
156 /* top level MDSS wrapper device (for MDP5/DPU only) */
157 struct msm_mdss *mdss;
159 /* possibly this should be in the kms component, but it is
160 * shared by both mdp4 and mdp5..
164 /* eDP is for mdp5 only, but kms has not been created
165 * when edp_bind() and edp_init() are called. Here is the only
166 * place to keep the edp instance.
170 /* DSI is shared by mdp4 and mdp5 */
171 struct msm_dsi *dsi[2];
173 /* when we have more than one 'msm_gpu' these need to be an array: */
175 struct msm_file_private *lastctx;
176 /* gpu is only set on open(), but we need this info earlier */
179 struct drm_fb_helper *fbdev;
181 struct msm_rd_state *rd; /* debugfs to dump all submits */
182 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
183 struct msm_perf_state *perf;
185 /* list of GEM objects: */
186 struct list_head inactive_list;
188 struct workqueue_struct *wq;
190 unsigned int num_planes;
191 struct drm_plane *planes[MAX_PLANES];
193 unsigned int num_crtcs;
194 struct drm_crtc *crtcs[MAX_CRTCS];
196 struct msm_drm_thread event_thread[MAX_CRTCS];
198 unsigned int num_encoders;
199 struct drm_encoder *encoders[MAX_ENCODERS];
201 unsigned int num_bridges;
202 struct drm_bridge *bridges[MAX_BRIDGES];
204 unsigned int num_connectors;
205 struct drm_connector *connectors[MAX_CONNECTORS];
208 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
210 /* VRAM carveout, used when no IOMMU: */
214 /* NOTE: mm managed at the page level, size is in # of pages
215 * and position mm_node->start is in # of pages:
218 spinlock_t lock; /* Protects drm_mm node allocation/removal */
221 struct notifier_block vmap_notifier;
222 struct shrinker shrinker;
224 struct drm_atomic_state *pm_state;
228 uint32_t pixel_format;
231 int msm_atomic_prepare_fb(struct drm_plane *plane,
232 struct drm_plane_state *new_state);
233 void msm_atomic_commit_tail(struct drm_atomic_state *state);
234 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
235 void msm_atomic_state_clear(struct drm_atomic_state *state);
236 void msm_atomic_state_free(struct drm_atomic_state *state);
238 int msm_gem_init_vma(struct msm_gem_address_space *aspace,
239 struct msm_gem_vma *vma, int npages);
240 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
241 struct msm_gem_vma *vma);
242 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
243 struct msm_gem_vma *vma);
244 int msm_gem_map_vma(struct msm_gem_address_space *aspace,
245 struct msm_gem_vma *vma, int prot,
246 struct sg_table *sgt, int npages);
247 void msm_gem_close_vma(struct msm_gem_address_space *aspace,
248 struct msm_gem_vma *vma);
250 void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
252 struct msm_gem_address_space *
253 msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain,
256 struct msm_gem_address_space *
257 msm_gem_address_space_create_a2xx(struct device *dev, struct msm_gpu *gpu,
258 const char *name, uint64_t va_start, uint64_t va_end);
260 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
261 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
263 bool msm_use_mmu(struct drm_device *dev);
265 void msm_gem_submit_free(struct msm_gem_submit *submit);
266 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
267 struct drm_file *file);
269 void msm_gem_shrinker_init(struct drm_device *dev);
270 void msm_gem_shrinker_cleanup(struct drm_device *dev);
272 int msm_gem_mmap_obj(struct drm_gem_object *obj,
273 struct vm_area_struct *vma);
274 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
275 vm_fault_t msm_gem_fault(struct vm_fault *vmf);
276 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
277 int msm_gem_get_iova(struct drm_gem_object *obj,
278 struct msm_gem_address_space *aspace, uint64_t *iova);
279 int msm_gem_get_and_pin_iova(struct drm_gem_object *obj,
280 struct msm_gem_address_space *aspace, uint64_t *iova);
281 uint64_t msm_gem_iova(struct drm_gem_object *obj,
282 struct msm_gem_address_space *aspace);
283 void msm_gem_unpin_iova(struct drm_gem_object *obj,
284 struct msm_gem_address_space *aspace);
285 struct page **msm_gem_get_pages(struct drm_gem_object *obj);
286 void msm_gem_put_pages(struct drm_gem_object *obj);
287 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
288 struct drm_mode_create_dumb *args);
289 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
290 uint32_t handle, uint64_t *offset);
291 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
292 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
293 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
294 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
295 struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
296 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
297 struct dma_buf_attachment *attach, struct sg_table *sg);
298 int msm_gem_prime_pin(struct drm_gem_object *obj);
299 void msm_gem_prime_unpin(struct drm_gem_object *obj);
300 void *msm_gem_get_vaddr(struct drm_gem_object *obj);
301 void *msm_gem_get_vaddr_active(struct drm_gem_object *obj);
302 void msm_gem_put_vaddr(struct drm_gem_object *obj);
303 int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
304 int msm_gem_sync_object(struct drm_gem_object *obj,
305 struct msm_fence_context *fctx, bool exclusive);
306 void msm_gem_move_to_active(struct drm_gem_object *obj,
307 struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence);
308 void msm_gem_move_to_inactive(struct drm_gem_object *obj);
309 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
310 int msm_gem_cpu_fini(struct drm_gem_object *obj);
311 void msm_gem_free_object(struct drm_gem_object *obj);
312 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
313 uint32_t size, uint32_t flags, uint32_t *handle, char *name);
314 struct drm_gem_object *msm_gem_new(struct drm_device *dev,
315 uint32_t size, uint32_t flags);
316 struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev,
317 uint32_t size, uint32_t flags);
318 void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
319 uint32_t flags, struct msm_gem_address_space *aspace,
320 struct drm_gem_object **bo, uint64_t *iova);
321 void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
322 uint32_t flags, struct msm_gem_address_space *aspace,
323 struct drm_gem_object **bo, uint64_t *iova);
324 void msm_gem_kernel_put(struct drm_gem_object *bo,
325 struct msm_gem_address_space *aspace, bool locked);
326 struct drm_gem_object *msm_gem_import(struct drm_device *dev,
327 struct dma_buf *dmabuf, struct sg_table *sgt);
330 void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...);
332 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
333 struct msm_gem_address_space *aspace);
334 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
335 struct msm_gem_address_space *aspace);
336 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
337 struct msm_gem_address_space *aspace, int plane);
338 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
339 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
340 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
341 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
342 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
343 int w, int h, int p, uint32_t format);
345 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
346 void msm_fbdev_free(struct drm_device *dev);
349 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
350 struct drm_encoder *encoder);
351 void __init msm_hdmi_register(void);
352 void __exit msm_hdmi_unregister(void);
355 void __init msm_edp_register(void);
356 void __exit msm_edp_unregister(void);
357 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
358 struct drm_encoder *encoder);
361 #ifdef CONFIG_DRM_MSM_DSI
362 void __init msm_dsi_register(void);
363 void __exit msm_dsi_unregister(void);
364 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
365 struct drm_encoder *encoder);
367 static inline void __init msm_dsi_register(void)
370 static inline void __exit msm_dsi_unregister(void)
373 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
374 struct drm_device *dev,
375 struct drm_encoder *encoder)
381 void __init msm_mdp_register(void);
382 void __exit msm_mdp_unregister(void);
383 void __init msm_dpu_register(void);
384 void __exit msm_dpu_unregister(void);
386 #ifdef CONFIG_DEBUG_FS
387 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
388 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
389 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
390 int msm_debugfs_late_init(struct drm_device *dev);
391 int msm_rd_debugfs_init(struct drm_minor *minor);
392 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
394 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
395 const char *fmt, ...);
396 int msm_perf_debugfs_init(struct drm_minor *minor);
397 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
399 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
401 static inline void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
402 const char *fmt, ...) {}
403 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
404 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
407 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
408 int msm_clk_bulk_get(struct device *dev, struct clk_bulk_data **bulk);
410 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
412 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
413 const char *dbgname);
414 void msm_writel(u32 data, void __iomem *addr);
415 u32 msm_readl(const void __iomem *addr);
417 struct msm_gpu_submitqueue;
418 int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx);
419 struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx,
421 int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx,
422 u32 prio, u32 flags, u32 *id);
423 int msm_submitqueue_remove(struct msm_file_private *ctx, u32 id);
424 void msm_submitqueue_close(struct msm_file_private *ctx);
426 void msm_submitqueue_destroy(struct kref *kref);
429 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
430 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
432 static inline int align_pitch(int width, int bpp)
434 int bytespp = (bpp + 7) / 8;
435 /* adreno needs pitch aligned to 32 pixels: */
436 return bytespp * ALIGN(width, 32);
439 /* for the generated headers: */
440 #define INVALID_IDX(idx) ({BUG(); 0;})
441 #define fui(x) ({BUG(); 0;})
442 #define util_float_to_half(x) ({BUG(); 0;})
445 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
447 /* for conditionally setting boolean flag(s): */
448 #define COND(bool, val) ((bool) ? (val) : 0)
450 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
452 ktime_t now = ktime_get();
453 unsigned long remaining_jiffies;
455 if (ktime_compare(*timeout, now) < 0) {
456 remaining_jiffies = 0;
458 ktime_t rem = ktime_sub(*timeout, now);
459 struct timespec ts = ktime_to_timespec(rem);
460 remaining_jiffies = timespec_to_jiffies(&ts);
463 return remaining_jiffies;
466 #endif /* __MSM_DRV_H__ */