1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2013 Red Hat
11 #include <linux/kernel.h>
12 #include <linux/clk.h>
13 #include <linux/cpufreq.h>
14 #include <linux/module.h>
15 #include <linux/component.h>
16 #include <linux/platform_device.h>
18 #include <linux/pm_runtime.h>
19 #include <linux/slab.h>
20 #include <linux/list.h>
21 #include <linux/iommu.h>
22 #include <linux/types.h>
23 #include <linux/of_graph.h>
24 #include <linux/of_device.h>
25 #include <linux/sizes.h>
26 #include <linux/kthread.h>
28 #include <drm/drm_atomic.h>
29 #include <drm/drm_atomic_helper.h>
30 #include <drm/drm_plane_helper.h>
31 #include <drm/drm_probe_helper.h>
32 #include <drm/drm_fb_helper.h>
33 #include <drm/msm_drm.h>
34 #include <drm/drm_gem.h>
41 struct msm_perf_state;
42 struct msm_gem_submit;
43 struct msm_fence_context;
44 struct msm_gem_address_space;
49 #define MAX_ENCODERS 8
51 #define MAX_CONNECTORS 8
53 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
55 struct msm_file_private {
57 struct list_head submitqueues;
59 struct msm_gem_address_space *aspace;
63 enum msm_mdp_plane_property {
66 PLANE_PROP_PREMULTIPLIED,
70 #define MSM_GPU_MAX_RINGS 4
71 #define MAX_H_TILES_PER_DISPLAY 2
74 * enum msm_display_caps - features/capabilities supported by displays
75 * @MSM_DISPLAY_CAP_VID_MODE: Video or "active" mode supported
76 * @MSM_DISPLAY_CAP_CMD_MODE: Command mode supported
77 * @MSM_DISPLAY_CAP_HOT_PLUG: Hot plug detection supported
78 * @MSM_DISPLAY_CAP_EDID: EDID supported
80 enum msm_display_caps {
81 MSM_DISPLAY_CAP_VID_MODE = BIT(0),
82 MSM_DISPLAY_CAP_CMD_MODE = BIT(1),
83 MSM_DISPLAY_CAP_HOT_PLUG = BIT(2),
84 MSM_DISPLAY_CAP_EDID = BIT(3),
88 * enum msm_event_wait - type of HW events to wait for
89 * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
90 * @MSM_ENC_TX_COMPLETE - wait for the HW to transfer the frame to panel
91 * @MSM_ENC_VBLANK - wait for the HW VBLANK event (for driver-internal waiters)
94 MSM_ENC_COMMIT_DONE = 0,
100 * struct msm_display_topology - defines a display topology pipeline
101 * @num_lm: number of layer mixers used
102 * @num_enc: number of compression encoder blocks used
103 * @num_intf: number of interfaces the panel is mounted on
105 struct msm_display_topology {
113 * struct msm_display_info - defines display properties
114 * @intf_type: DRM_MODE_ENCODER_ type
115 * @capabilities: Bitmask of display flags
116 * @num_of_h_tiles: Number of horizontal tiles in case of split interface
117 * @h_tile_instance: Controller instance used per tile. Number of elements is
118 * based on num_of_h_tiles
119 * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
120 * used instead of panel TE in cmd mode panels
122 struct msm_display_info {
124 uint32_t capabilities;
125 uint32_t num_of_h_tiles;
126 uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
127 bool is_te_using_watchdog_timer;
130 /* Commit/Event thread specific structure */
131 struct msm_drm_thread {
132 struct drm_device *dev;
133 unsigned int crtc_id;
134 struct kthread_worker *worker;
137 struct msm_drm_private {
139 struct drm_device *dev;
143 /* subordinate devices, if present: */
144 struct platform_device *gpu_pdev;
146 /* top level MDSS wrapper device (for MDP5/DPU only) */
147 struct msm_mdss *mdss;
149 /* possibly this should be in the kms component, but it is
150 * shared by both mdp4 and mdp5..
154 /* eDP is for mdp5 only, but kms has not been created
155 * when edp_bind() and edp_init() are called. Here is the only
156 * place to keep the edp instance.
160 /* DSI is shared by mdp4 and mdp5 */
161 struct msm_dsi *dsi[2];
165 /* when we have more than one 'msm_gpu' these need to be an array: */
167 struct msm_file_private *lastctx;
168 /* gpu is only set on open(), but we need this info earlier */
171 struct drm_fb_helper *fbdev;
173 struct msm_rd_state *rd; /* debugfs to dump all submits */
174 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
175 struct msm_perf_state *perf;
178 * List of all GEM objects (mainly for debugfs, protected by obj_lock
179 * (acquire before per GEM object lock)
181 struct list_head objects;
182 struct mutex obj_lock;
185 * LRUs of inactive GEM objects. Every bo is either in one of the
186 * inactive lists (depending on whether or not it is shrinkable) or
187 * gpu->active_list (for the gpu it is active on[1]), or transiently
188 * on a temporary list as the shrinker is running.
190 * Note that inactive_willneed also contains pinned and vmap'd bos,
191 * but the number of pinned-but-not-active objects is small (scanout
192 * buffers, ringbuffer, etc).
194 * These lists are protected by mm_lock (which should be acquired
195 * before per GEM object lock). One should *not* hold mm_lock in
196 * get_pages()/vmap()/etc paths, as they can trigger the shrinker.
198 * [1] if someone ever added support for the old 2d cores, there could be
199 * more than one gpu object
201 struct list_head inactive_willneed; /* inactive + potentially unpin/evictable */
202 struct list_head inactive_dontneed; /* inactive + shrinkable */
203 struct list_head inactive_unpinned; /* inactive + purged or unpinned */
204 long shrinkable_count; /* write access under mm_lock */
205 long evictable_count; /* write access under mm_lock */
206 struct mutex mm_lock;
208 struct workqueue_struct *wq;
210 unsigned int num_planes;
211 struct drm_plane *planes[MAX_PLANES];
213 unsigned int num_crtcs;
214 struct drm_crtc *crtcs[MAX_CRTCS];
216 struct msm_drm_thread event_thread[MAX_CRTCS];
218 unsigned int num_encoders;
219 struct drm_encoder *encoders[MAX_ENCODERS];
221 unsigned int num_bridges;
222 struct drm_bridge *bridges[MAX_BRIDGES];
224 unsigned int num_connectors;
225 struct drm_connector *connectors[MAX_CONNECTORS];
228 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
230 /* VRAM carveout, used when no IOMMU: */
234 /* NOTE: mm managed at the page level, size is in # of pages
235 * and position mm_node->start is in # of pages:
238 spinlock_t lock; /* Protects drm_mm node allocation/removal */
241 struct notifier_block vmap_notifier;
242 struct shrinker shrinker;
244 struct drm_atomic_state *pm_state;
248 uint32_t pixel_format;
251 struct msm_pending_timer;
253 int msm_atomic_prepare_fb(struct drm_plane *plane,
254 struct drm_plane_state *new_state);
255 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
256 struct msm_kms *kms, int crtc_idx);
257 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
258 void msm_atomic_commit_tail(struct drm_atomic_state *state);
259 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
260 void msm_atomic_state_clear(struct drm_atomic_state *state);
261 void msm_atomic_state_free(struct drm_atomic_state *state);
263 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
264 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
266 int msm_gem_init_vma(struct msm_gem_address_space *aspace,
267 struct msm_gem_vma *vma, int npages,
268 u64 range_start, u64 range_end);
269 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
270 struct msm_gem_vma *vma);
271 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
272 struct msm_gem_vma *vma);
273 int msm_gem_map_vma(struct msm_gem_address_space *aspace,
274 struct msm_gem_vma *vma, int prot,
275 struct sg_table *sgt, int npages);
276 void msm_gem_close_vma(struct msm_gem_address_space *aspace,
277 struct msm_gem_vma *vma);
280 struct msm_gem_address_space *
281 msm_gem_address_space_get(struct msm_gem_address_space *aspace);
283 void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
285 struct msm_gem_address_space *
286 msm_gem_address_space_create(struct msm_mmu *mmu, const char *name,
287 u64 va_start, u64 size);
289 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
290 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
292 bool msm_use_mmu(struct drm_device *dev);
294 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
295 struct drm_file *file);
297 void msm_gem_shrinker_init(struct drm_device *dev);
298 void msm_gem_shrinker_cleanup(struct drm_device *dev);
300 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
301 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
302 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
303 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
304 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
305 struct dma_buf_attachment *attach, struct sg_table *sg);
306 int msm_gem_prime_pin(struct drm_gem_object *obj);
307 void msm_gem_prime_unpin(struct drm_gem_object *obj);
309 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
310 struct msm_gem_address_space *aspace);
311 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
312 struct msm_gem_address_space *aspace);
313 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
314 struct msm_gem_address_space *aspace, int plane);
315 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
316 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
317 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
318 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
319 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
320 int w, int h, int p, uint32_t format);
322 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
323 void msm_fbdev_free(struct drm_device *dev);
326 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
327 struct drm_encoder *encoder);
328 void __init msm_hdmi_register(void);
329 void __exit msm_hdmi_unregister(void);
332 void __init msm_edp_register(void);
333 void __exit msm_edp_unregister(void);
334 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
335 struct drm_encoder *encoder);
338 #ifdef CONFIG_DRM_MSM_DSI
339 void __init msm_dsi_register(void);
340 void __exit msm_dsi_unregister(void);
341 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
342 struct drm_encoder *encoder);
344 static inline void __init msm_dsi_register(void)
347 static inline void __exit msm_dsi_unregister(void)
350 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
351 struct drm_device *dev,
352 struct drm_encoder *encoder)
358 #ifdef CONFIG_DRM_MSM_DP
359 int __init msm_dp_register(void);
360 void __exit msm_dp_unregister(void);
361 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
362 struct drm_encoder *encoder);
363 int msm_dp_display_enable(struct msm_dp *dp, struct drm_encoder *encoder);
364 int msm_dp_display_disable(struct msm_dp *dp, struct drm_encoder *encoder);
365 int msm_dp_display_pre_disable(struct msm_dp *dp, struct drm_encoder *encoder);
366 void msm_dp_display_mode_set(struct msm_dp *dp, struct drm_encoder *encoder,
367 struct drm_display_mode *mode,
368 struct drm_display_mode *adjusted_mode);
369 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
371 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
374 static inline int __init msm_dp_register(void)
378 static inline void __exit msm_dp_unregister(void)
381 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
382 struct drm_device *dev,
383 struct drm_encoder *encoder)
387 static inline int msm_dp_display_enable(struct msm_dp *dp,
388 struct drm_encoder *encoder)
392 static inline int msm_dp_display_disable(struct msm_dp *dp,
393 struct drm_encoder *encoder)
397 static inline int msm_dp_display_pre_disable(struct msm_dp *dp,
398 struct drm_encoder *encoder)
402 static inline void msm_dp_display_mode_set(struct msm_dp *dp,
403 struct drm_encoder *encoder,
404 struct drm_display_mode *mode,
405 struct drm_display_mode *adjusted_mode)
409 static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
413 static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
414 struct drm_minor *minor)
420 void __init msm_mdp_register(void);
421 void __exit msm_mdp_unregister(void);
422 void __init msm_dpu_register(void);
423 void __exit msm_dpu_unregister(void);
425 #ifdef CONFIG_DEBUG_FS
426 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
427 int msm_debugfs_late_init(struct drm_device *dev);
428 int msm_rd_debugfs_init(struct drm_minor *minor);
429 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
431 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
432 const char *fmt, ...);
433 int msm_perf_debugfs_init(struct drm_minor *minor);
434 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
436 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
438 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
439 struct msm_gem_submit *submit,
440 const char *fmt, ...) {}
441 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
442 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
445 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
447 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
449 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
450 const char *dbgname);
451 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
452 const char *dbgname);
453 void msm_writel(u32 data, void __iomem *addr);
454 u32 msm_readl(const void __iomem *addr);
455 void msm_rmw(void __iomem *addr, u32 mask, u32 or);
457 struct msm_gpu_submitqueue;
458 int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx);
459 struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx,
461 int msm_submitqueue_create(struct drm_device *drm,
462 struct msm_file_private *ctx,
463 u32 prio, u32 flags, u32 *id);
464 int msm_submitqueue_query(struct drm_device *drm, struct msm_file_private *ctx,
465 struct drm_msm_submitqueue_query *args);
466 int msm_submitqueue_remove(struct msm_file_private *ctx, u32 id);
467 void msm_submitqueue_close(struct msm_file_private *ctx);
469 void msm_submitqueue_destroy(struct kref *kref);
471 static inline void __msm_file_private_destroy(struct kref *kref)
473 struct msm_file_private *ctx = container_of(kref,
474 struct msm_file_private, ref);
476 msm_gem_address_space_put(ctx->aspace);
480 static inline void msm_file_private_put(struct msm_file_private *ctx)
482 kref_put(&ctx->ref, __msm_file_private_destroy);
485 static inline struct msm_file_private *msm_file_private_get(
486 struct msm_file_private *ctx)
492 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
493 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
495 static inline int align_pitch(int width, int bpp)
497 int bytespp = (bpp + 7) / 8;
498 /* adreno needs pitch aligned to 32 pixels: */
499 return bytespp * ALIGN(width, 32);
502 /* for the generated headers: */
503 #define INVALID_IDX(idx) ({BUG(); 0;})
504 #define fui(x) ({BUG(); 0;})
505 #define util_float_to_half(x) ({BUG(); 0;})
508 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
510 /* for conditionally setting boolean flag(s): */
511 #define COND(bool, val) ((bool) ? (val) : 0)
513 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
515 ktime_t now = ktime_get();
516 unsigned long remaining_jiffies;
518 if (ktime_compare(*timeout, now) < 0) {
519 remaining_jiffies = 0;
521 ktime_t rem = ktime_sub(*timeout, now);
522 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
525 return remaining_jiffies;
528 #endif /* __MSM_DRV_H__ */