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_crtc_helper.h>
43 #include <drm/drm_plane_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 struct msm_file_private {
67 struct list_head submitqueues;
71 enum msm_mdp_plane_property {
74 PLANE_PROP_PREMULTIPLIED,
78 struct msm_vblank_ctrl {
79 struct kthread_work work;
80 struct list_head event_list;
84 #define MSM_GPU_MAX_RINGS 4
85 #define MAX_H_TILES_PER_DISPLAY 2
88 * enum msm_display_caps - features/capabilities supported by displays
89 * @MSM_DISPLAY_CAP_VID_MODE: Video or "active" mode supported
90 * @MSM_DISPLAY_CAP_CMD_MODE: Command mode supported
91 * @MSM_DISPLAY_CAP_HOT_PLUG: Hot plug detection supported
92 * @MSM_DISPLAY_CAP_EDID: EDID supported
94 enum msm_display_caps {
95 MSM_DISPLAY_CAP_VID_MODE = BIT(0),
96 MSM_DISPLAY_CAP_CMD_MODE = BIT(1),
97 MSM_DISPLAY_CAP_HOT_PLUG = BIT(2),
98 MSM_DISPLAY_CAP_EDID = BIT(3),
102 * enum msm_event_wait - type of HW events to wait for
103 * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
104 * @MSM_ENC_TX_COMPLETE - wait for the HW to transfer the frame to panel
105 * @MSM_ENC_VBLANK - wait for the HW VBLANK event (for driver-internal waiters)
107 enum msm_event_wait {
108 MSM_ENC_COMMIT_DONE = 0,
114 * struct msm_display_topology - defines a display topology pipeline
115 * @num_lm: number of layer mixers used
116 * @num_enc: number of compression encoder blocks used
117 * @num_intf: number of interfaces the panel is mounted on
119 struct msm_display_topology {
126 * struct msm_display_info - defines display properties
127 * @intf_type: DRM_MODE_CONNECTOR_ display type
128 * @capabilities: Bitmask of display flags
129 * @num_of_h_tiles: Number of horizontal tiles in case of split interface
130 * @h_tile_instance: Controller instance used per tile. Number of elements is
131 * based on num_of_h_tiles
132 * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
133 * used instead of panel TE in cmd mode panels
135 struct msm_display_info {
137 uint32_t capabilities;
138 uint32_t num_of_h_tiles;
139 uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
140 bool is_te_using_watchdog_timer;
143 /* Commit/Event thread specific structure */
144 struct msm_drm_thread {
145 struct drm_device *dev;
146 struct task_struct *thread;
147 unsigned int crtc_id;
148 struct kthread_worker worker;
151 struct msm_drm_private {
153 struct drm_device *dev;
157 /* subordinate devices, if present: */
158 struct platform_device *gpu_pdev;
160 /* top level MDSS wrapper device (for MDP5/DPU only) */
161 struct msm_mdss *mdss;
163 /* possibly this should be in the kms component, but it is
164 * shared by both mdp4 and mdp5..
168 /* eDP is for mdp5 only, but kms has not been created
169 * when edp_bind() and edp_init() are called. Here is the only
170 * place to keep the edp instance.
174 /* DSI is shared by mdp4 and mdp5 */
175 struct msm_dsi *dsi[2];
177 /* when we have more than one 'msm_gpu' these need to be an array: */
179 struct msm_file_private *lastctx;
181 struct drm_fb_helper *fbdev;
183 struct msm_rd_state *rd; /* debugfs to dump all submits */
184 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
185 struct msm_perf_state *perf;
187 /* list of GEM objects: */
188 struct list_head inactive_list;
190 struct workqueue_struct *wq;
192 unsigned int num_planes;
193 struct drm_plane *planes[MAX_PLANES];
195 unsigned int num_crtcs;
196 struct drm_crtc *crtcs[MAX_CRTCS];
198 struct msm_drm_thread disp_thread[MAX_CRTCS];
199 struct msm_drm_thread event_thread[MAX_CRTCS];
201 unsigned int num_encoders;
202 struct drm_encoder *encoders[MAX_ENCODERS];
204 unsigned int num_bridges;
205 struct drm_bridge *bridges[MAX_BRIDGES];
207 unsigned int num_connectors;
208 struct drm_connector *connectors[MAX_CONNECTORS];
211 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
213 /* VRAM carveout, used when no IOMMU: */
217 /* NOTE: mm managed at the page level, size is in # of pages
218 * and position mm_node->start is in # of pages:
221 spinlock_t lock; /* Protects drm_mm node allocation/removal */
224 struct notifier_block vmap_notifier;
225 struct shrinker shrinker;
227 struct msm_vblank_ctrl vblank_ctrl;
228 struct drm_atomic_state *pm_state;
232 uint32_t pixel_format;
235 int msm_atomic_prepare_fb(struct drm_plane *plane,
236 struct drm_plane_state *new_state);
237 void msm_atomic_commit_tail(struct drm_atomic_state *state);
238 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
239 void msm_atomic_state_clear(struct drm_atomic_state *state);
240 void msm_atomic_state_free(struct drm_atomic_state *state);
242 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
243 struct msm_gem_vma *vma, struct sg_table *sgt);
244 int msm_gem_map_vma(struct msm_gem_address_space *aspace,
245 struct msm_gem_vma *vma, struct sg_table *sgt, int npages);
247 void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
249 struct msm_gem_address_space *
250 msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain,
253 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
254 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
256 void msm_gem_submit_free(struct msm_gem_submit *submit);
257 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
258 struct drm_file *file);
260 void msm_gem_shrinker_init(struct drm_device *dev);
261 void msm_gem_shrinker_cleanup(struct drm_device *dev);
263 int msm_gem_mmap_obj(struct drm_gem_object *obj,
264 struct vm_area_struct *vma);
265 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
266 vm_fault_t msm_gem_fault(struct vm_fault *vmf);
267 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
268 int msm_gem_get_iova(struct drm_gem_object *obj,
269 struct msm_gem_address_space *aspace, uint64_t *iova);
270 uint64_t msm_gem_iova(struct drm_gem_object *obj,
271 struct msm_gem_address_space *aspace);
272 struct page **msm_gem_get_pages(struct drm_gem_object *obj);
273 void msm_gem_put_pages(struct drm_gem_object *obj);
274 void msm_gem_put_iova(struct drm_gem_object *obj,
275 struct msm_gem_address_space *aspace);
276 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
277 struct drm_mode_create_dumb *args);
278 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
279 uint32_t handle, uint64_t *offset);
280 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
281 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
282 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
283 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
284 struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
285 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
286 struct dma_buf_attachment *attach, struct sg_table *sg);
287 int msm_gem_prime_pin(struct drm_gem_object *obj);
288 void msm_gem_prime_unpin(struct drm_gem_object *obj);
289 void *msm_gem_get_vaddr(struct drm_gem_object *obj);
290 void *msm_gem_get_vaddr_active(struct drm_gem_object *obj);
291 void msm_gem_put_vaddr(struct drm_gem_object *obj);
292 int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv);
293 int msm_gem_sync_object(struct drm_gem_object *obj,
294 struct msm_fence_context *fctx, bool exclusive);
295 void msm_gem_move_to_active(struct drm_gem_object *obj,
296 struct msm_gpu *gpu, bool exclusive, struct dma_fence *fence);
297 void msm_gem_move_to_inactive(struct drm_gem_object *obj);
298 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout);
299 int msm_gem_cpu_fini(struct drm_gem_object *obj);
300 void msm_gem_free_object(struct drm_gem_object *obj);
301 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
302 uint32_t size, uint32_t flags, uint32_t *handle);
303 struct drm_gem_object *msm_gem_new(struct drm_device *dev,
304 uint32_t size, uint32_t flags);
305 struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev,
306 uint32_t size, uint32_t flags);
307 void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
308 uint32_t flags, struct msm_gem_address_space *aspace,
309 struct drm_gem_object **bo, uint64_t *iova);
310 void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
311 uint32_t flags, struct msm_gem_address_space *aspace,
312 struct drm_gem_object **bo, uint64_t *iova);
313 struct drm_gem_object *msm_gem_import(struct drm_device *dev,
314 struct dma_buf *dmabuf, struct sg_table *sgt);
316 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
317 struct msm_gem_address_space *aspace);
318 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
319 struct msm_gem_address_space *aspace);
320 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
321 struct msm_gem_address_space *aspace, int plane);
322 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
323 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
324 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
325 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
326 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
327 int w, int h, int p, uint32_t format);
329 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
330 void msm_fbdev_free(struct drm_device *dev);
333 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
334 struct drm_encoder *encoder);
335 void __init msm_hdmi_register(void);
336 void __exit msm_hdmi_unregister(void);
339 void __init msm_edp_register(void);
340 void __exit msm_edp_unregister(void);
341 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
342 struct drm_encoder *encoder);
345 #ifdef CONFIG_DRM_MSM_DSI
346 void __init msm_dsi_register(void);
347 void __exit msm_dsi_unregister(void);
348 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
349 struct drm_encoder *encoder);
351 static inline void __init msm_dsi_register(void)
354 static inline void __exit msm_dsi_unregister(void)
357 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
358 struct drm_device *dev,
359 struct drm_encoder *encoder)
365 void __init msm_mdp_register(void);
366 void __exit msm_mdp_unregister(void);
367 void __init msm_dpu_register(void);
368 void __exit msm_dpu_unregister(void);
370 #ifdef CONFIG_DEBUG_FS
371 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
372 void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
373 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
374 int msm_debugfs_late_init(struct drm_device *dev);
375 int msm_rd_debugfs_init(struct drm_minor *minor);
376 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
377 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
378 const char *fmt, ...);
379 int msm_perf_debugfs_init(struct drm_minor *minor);
380 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
382 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
383 static inline void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
384 const char *fmt, ...) {}
385 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
386 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
389 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
390 int msm_clk_bulk_get(struct device *dev, struct clk_bulk_data **bulk);
392 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
394 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
395 const char *dbgname);
396 void msm_writel(u32 data, void __iomem *addr);
397 u32 msm_readl(const void __iomem *addr);
399 struct msm_gpu_submitqueue;
400 int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx);
401 struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx,
403 int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx,
404 u32 prio, u32 flags, u32 *id);
405 int msm_submitqueue_remove(struct msm_file_private *ctx, u32 id);
406 void msm_submitqueue_close(struct msm_file_private *ctx);
408 void msm_submitqueue_destroy(struct kref *kref);
411 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
412 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
414 static inline int align_pitch(int width, int bpp)
416 int bytespp = (bpp + 7) / 8;
417 /* adreno needs pitch aligned to 32 pixels: */
418 return bytespp * ALIGN(width, 32);
421 /* for the generated headers: */
422 #define INVALID_IDX(idx) ({BUG(); 0;})
423 #define fui(x) ({BUG(); 0;})
424 #define util_float_to_half(x) ({BUG(); 0;})
427 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
429 /* for conditionally setting boolean flag(s): */
430 #define COND(bool, val) ((bool) ? (val) : 0)
432 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
434 ktime_t now = ktime_get();
435 unsigned long remaining_jiffies;
437 if (ktime_compare(*timeout, now) < 0) {
438 remaining_jiffies = 0;
440 ktime_t rem = ktime_sub(*timeout, now);
441 struct timespec ts = ktime_to_timespec(rem);
442 remaining_jiffies = timespec_to_jiffies(&ts);
445 return remaining_jiffies;
448 #endif /* __MSM_DRV_H__ */