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;
46 struct msm_disp_state;
50 #define MAX_ENCODERS 8
52 #define MAX_CONNECTORS 8
54 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
56 struct msm_file_private {
58 struct list_head submitqueues;
60 struct msm_gem_address_space *aspace;
64 enum msm_mdp_plane_property {
67 PLANE_PROP_PREMULTIPLIED,
71 #define MSM_GPU_MAX_RINGS 4
72 #define MAX_H_TILES_PER_DISPLAY 2
75 * enum msm_display_caps - features/capabilities supported by displays
76 * @MSM_DISPLAY_CAP_VID_MODE: Video or "active" mode supported
77 * @MSM_DISPLAY_CAP_CMD_MODE: Command mode supported
78 * @MSM_DISPLAY_CAP_HOT_PLUG: Hot plug detection supported
79 * @MSM_DISPLAY_CAP_EDID: EDID supported
81 enum msm_display_caps {
82 MSM_DISPLAY_CAP_VID_MODE = BIT(0),
83 MSM_DISPLAY_CAP_CMD_MODE = BIT(1),
84 MSM_DISPLAY_CAP_HOT_PLUG = BIT(2),
85 MSM_DISPLAY_CAP_EDID = BIT(3),
89 * enum msm_event_wait - type of HW events to wait for
90 * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
91 * @MSM_ENC_TX_COMPLETE - wait for the HW to transfer the frame to panel
92 * @MSM_ENC_VBLANK - wait for the HW VBLANK event (for driver-internal waiters)
95 MSM_ENC_COMMIT_DONE = 0,
101 * struct msm_display_topology - defines a display topology pipeline
102 * @num_lm: number of layer mixers used
103 * @num_enc: number of compression encoder blocks used
104 * @num_intf: number of interfaces the panel is mounted on
106 struct msm_display_topology {
114 * struct msm_display_info - defines display properties
115 * @intf_type: DRM_MODE_ENCODER_ type
116 * @capabilities: Bitmask of display flags
117 * @num_of_h_tiles: Number of horizontal tiles in case of split interface
118 * @h_tile_instance: Controller instance used per tile. Number of elements is
119 * based on num_of_h_tiles
120 * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
121 * used instead of panel TE in cmd mode panels
123 struct msm_display_info {
125 uint32_t capabilities;
126 uint32_t num_of_h_tiles;
127 uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
128 bool is_te_using_watchdog_timer;
131 /* Commit/Event thread specific structure */
132 struct msm_drm_thread {
133 struct drm_device *dev;
134 unsigned int crtc_id;
135 struct kthread_worker *worker;
138 struct msm_drm_private {
140 struct drm_device *dev;
144 /* subordinate devices, if present: */
145 struct platform_device *gpu_pdev;
147 /* top level MDSS wrapper device (for MDP5/DPU only) */
148 struct msm_mdss *mdss;
150 /* possibly this should be in the kms component, but it is
151 * shared by both mdp4 and mdp5..
155 /* eDP is for mdp5 only, but kms has not been created
156 * when edp_bind() and edp_init() are called. Here is the only
157 * place to keep the edp instance.
161 /* DSI is shared by mdp4 and mdp5 */
162 struct msm_dsi *dsi[2];
166 /* when we have more than one 'msm_gpu' these need to be an array: */
168 struct msm_file_private *lastctx;
169 /* gpu is only set on open(), but we need this info earlier */
171 bool has_cached_coherent;
173 struct drm_fb_helper *fbdev;
175 struct msm_rd_state *rd; /* debugfs to dump all submits */
176 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
177 struct msm_perf_state *perf;
180 * List of all GEM objects (mainly for debugfs, protected by obj_lock
181 * (acquire before per GEM object lock)
183 struct list_head objects;
184 struct mutex obj_lock;
187 * LRUs of inactive GEM objects. Every bo is either in one of the
188 * inactive lists (depending on whether or not it is shrinkable) or
189 * gpu->active_list (for the gpu it is active on[1]), or transiently
190 * on a temporary list as the shrinker is running.
192 * Note that inactive_willneed also contains pinned and vmap'd bos,
193 * but the number of pinned-but-not-active objects is small (scanout
194 * buffers, ringbuffer, etc).
196 * These lists are protected by mm_lock (which should be acquired
197 * before per GEM object lock). One should *not* hold mm_lock in
198 * get_pages()/vmap()/etc paths, as they can trigger the shrinker.
200 * [1] if someone ever added support for the old 2d cores, there could be
201 * more than one gpu object
203 struct list_head inactive_willneed; /* inactive + potentially unpin/evictable */
204 struct list_head inactive_dontneed; /* inactive + shrinkable */
205 struct list_head inactive_unpinned; /* inactive + purged or unpinned */
206 long shrinkable_count; /* write access under mm_lock */
207 long evictable_count; /* write access under mm_lock */
208 struct mutex mm_lock;
210 struct workqueue_struct *wq;
212 unsigned int num_planes;
213 struct drm_plane *planes[MAX_PLANES];
215 unsigned int num_crtcs;
216 struct drm_crtc *crtcs[MAX_CRTCS];
218 struct msm_drm_thread event_thread[MAX_CRTCS];
220 unsigned int num_encoders;
221 struct drm_encoder *encoders[MAX_ENCODERS];
223 unsigned int num_bridges;
224 struct drm_bridge *bridges[MAX_BRIDGES];
226 unsigned int num_connectors;
227 struct drm_connector *connectors[MAX_CONNECTORS];
230 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
232 /* VRAM carveout, used when no IOMMU: */
236 /* NOTE: mm managed at the page level, size is in # of pages
237 * and position mm_node->start is in # of pages:
240 spinlock_t lock; /* Protects drm_mm node allocation/removal */
243 struct notifier_block vmap_notifier;
244 struct shrinker shrinker;
246 struct drm_atomic_state *pm_state;
248 /* For hang detection, in ms */
249 unsigned int hangcheck_period;
253 uint32_t pixel_format;
256 struct msm_pending_timer;
258 int msm_atomic_prepare_fb(struct drm_plane *plane,
259 struct drm_plane_state *new_state);
260 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
261 struct msm_kms *kms, int crtc_idx);
262 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
263 void msm_atomic_commit_tail(struct drm_atomic_state *state);
264 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
265 void msm_atomic_state_clear(struct drm_atomic_state *state);
266 void msm_atomic_state_free(struct drm_atomic_state *state);
268 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
269 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
271 int msm_gem_init_vma(struct msm_gem_address_space *aspace,
272 struct msm_gem_vma *vma, int npages,
273 u64 range_start, u64 range_end);
274 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
275 struct msm_gem_vma *vma);
276 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
277 struct msm_gem_vma *vma);
278 int msm_gem_map_vma(struct msm_gem_address_space *aspace,
279 struct msm_gem_vma *vma, int prot,
280 struct sg_table *sgt, int npages);
281 void msm_gem_close_vma(struct msm_gem_address_space *aspace,
282 struct msm_gem_vma *vma);
285 struct msm_gem_address_space *
286 msm_gem_address_space_get(struct msm_gem_address_space *aspace);
288 void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
290 struct msm_gem_address_space *
291 msm_gem_address_space_create(struct msm_mmu *mmu, const char *name,
292 u64 va_start, u64 size);
294 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
295 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
297 bool msm_use_mmu(struct drm_device *dev);
299 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
300 struct drm_file *file);
302 #ifdef CONFIG_DEBUG_FS
303 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
306 void msm_gem_shrinker_init(struct drm_device *dev);
307 void msm_gem_shrinker_cleanup(struct drm_device *dev);
309 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
310 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
311 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
312 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
313 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
314 struct dma_buf_attachment *attach, struct sg_table *sg);
315 int msm_gem_prime_pin(struct drm_gem_object *obj);
316 void msm_gem_prime_unpin(struct drm_gem_object *obj);
318 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
319 struct msm_gem_address_space *aspace);
320 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
321 struct msm_gem_address_space *aspace);
322 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
323 struct msm_gem_address_space *aspace, int plane);
324 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
325 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
326 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
327 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
328 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
329 int w, int h, int p, uint32_t format);
331 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
332 void msm_fbdev_free(struct drm_device *dev);
335 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
336 struct drm_encoder *encoder);
337 void __init msm_hdmi_register(void);
338 void __exit msm_hdmi_unregister(void);
341 void __init msm_edp_register(void);
342 void __exit msm_edp_unregister(void);
343 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
344 struct drm_encoder *encoder);
347 #ifdef CONFIG_DRM_MSM_DSI
348 void __init msm_dsi_register(void);
349 void __exit msm_dsi_unregister(void);
350 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
351 struct drm_encoder *encoder);
352 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
355 static inline void __init msm_dsi_register(void)
358 static inline void __exit msm_dsi_unregister(void)
361 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
362 struct drm_device *dev,
363 struct drm_encoder *encoder)
367 static inline void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
373 #ifdef CONFIG_DRM_MSM_DP
374 int __init msm_dp_register(void);
375 void __exit msm_dp_unregister(void);
376 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
377 struct drm_encoder *encoder);
378 int msm_dp_display_enable(struct msm_dp *dp, struct drm_encoder *encoder);
379 int msm_dp_display_disable(struct msm_dp *dp, struct drm_encoder *encoder);
380 int msm_dp_display_pre_disable(struct msm_dp *dp, struct drm_encoder *encoder);
381 void msm_dp_display_mode_set(struct msm_dp *dp, struct drm_encoder *encoder,
382 struct drm_display_mode *mode,
383 struct drm_display_mode *adjusted_mode);
384 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
385 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
387 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
390 static inline int __init msm_dp_register(void)
394 static inline void __exit msm_dp_unregister(void)
397 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
398 struct drm_device *dev,
399 struct drm_encoder *encoder)
403 static inline int msm_dp_display_enable(struct msm_dp *dp,
404 struct drm_encoder *encoder)
408 static inline int msm_dp_display_disable(struct msm_dp *dp,
409 struct drm_encoder *encoder)
413 static inline int msm_dp_display_pre_disable(struct msm_dp *dp,
414 struct drm_encoder *encoder)
418 static inline void msm_dp_display_mode_set(struct msm_dp *dp,
419 struct drm_encoder *encoder,
420 struct drm_display_mode *mode,
421 struct drm_display_mode *adjusted_mode)
425 static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
429 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
433 static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
434 struct drm_minor *minor)
440 void __init msm_mdp_register(void);
441 void __exit msm_mdp_unregister(void);
442 void __init msm_dpu_register(void);
443 void __exit msm_dpu_unregister(void);
445 #ifdef CONFIG_DEBUG_FS
446 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
447 int msm_debugfs_late_init(struct drm_device *dev);
448 int msm_rd_debugfs_init(struct drm_minor *minor);
449 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
451 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
452 const char *fmt, ...);
453 int msm_perf_debugfs_init(struct drm_minor *minor);
454 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
456 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
458 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
459 struct msm_gem_submit *submit,
460 const char *fmt, ...) {}
461 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
462 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
465 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
467 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
469 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
470 const char *dbgname);
471 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
472 const char *dbgname, phys_addr_t *size);
473 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
474 const char *dbgname);
475 void msm_writel(u32 data, void __iomem *addr);
476 u32 msm_readl(const void __iomem *addr);
477 void msm_rmw(void __iomem *addr, u32 mask, u32 or);
479 struct msm_gpu_submitqueue;
480 int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx);
481 struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx,
483 int msm_submitqueue_create(struct drm_device *drm,
484 struct msm_file_private *ctx,
485 u32 prio, u32 flags, u32 *id);
486 int msm_submitqueue_query(struct drm_device *drm, struct msm_file_private *ctx,
487 struct drm_msm_submitqueue_query *args);
488 int msm_submitqueue_remove(struct msm_file_private *ctx, u32 id);
489 void msm_submitqueue_close(struct msm_file_private *ctx);
491 void msm_submitqueue_destroy(struct kref *kref);
493 static inline void __msm_file_private_destroy(struct kref *kref)
495 struct msm_file_private *ctx = container_of(kref,
496 struct msm_file_private, ref);
498 msm_gem_address_space_put(ctx->aspace);
502 static inline void msm_file_private_put(struct msm_file_private *ctx)
504 kref_put(&ctx->ref, __msm_file_private_destroy);
507 static inline struct msm_file_private *msm_file_private_get(
508 struct msm_file_private *ctx)
514 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
515 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
517 static inline int align_pitch(int width, int bpp)
519 int bytespp = (bpp + 7) / 8;
520 /* adreno needs pitch aligned to 32 pixels: */
521 return bytespp * ALIGN(width, 32);
524 /* for the generated headers: */
525 #define INVALID_IDX(idx) ({BUG(); 0;})
526 #define fui(x) ({BUG(); 0;})
527 #define _mesa_float_to_half(x) ({BUG(); 0;})
530 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
532 /* for conditionally setting boolean flag(s): */
533 #define COND(bool, val) ((bool) ? (val) : 0)
535 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
537 ktime_t now = ktime_get();
538 unsigned long remaining_jiffies;
540 if (ktime_compare(*timeout, now) < 0) {
541 remaining_jiffies = 0;
543 ktime_t rem = ktime_sub(*timeout, now);
544 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
547 return remaining_jiffies;
550 #endif /* __MSM_DRV_H__ */