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 enum msm_mdp_plane_property {
59 PLANE_PROP_PREMULTIPLIED,
63 enum msm_dp_controller {
67 MSM_DP_CONTROLLER_COUNT,
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 /* DSI is shared by mdp4 and mdp5 */
155 struct msm_dsi *dsi[2];
157 struct msm_dp *dp[MSM_DP_CONTROLLER_COUNT];
159 /* when we have more than one 'msm_gpu' these need to be an array: */
162 /* gpu is only set on open(), but we need this info earlier */
164 bool has_cached_coherent;
166 struct drm_fb_helper *fbdev;
168 struct msm_rd_state *rd; /* debugfs to dump all submits */
169 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
170 struct msm_perf_state *perf;
173 * List of all GEM objects (mainly for debugfs, protected by obj_lock
174 * (acquire before per GEM object lock)
176 struct list_head objects;
177 struct mutex obj_lock;
180 * LRUs of inactive GEM objects. Every bo is either in one of the
181 * inactive lists (depending on whether or not it is shrinkable) or
182 * gpu->active_list (for the gpu it is active on[1]), or transiently
183 * on a temporary list as the shrinker is running.
185 * Note that inactive_willneed also contains pinned and vmap'd bos,
186 * but the number of pinned-but-not-active objects is small (scanout
187 * buffers, ringbuffer, etc).
189 * These lists are protected by mm_lock (which should be acquired
190 * before per GEM object lock). One should *not* hold mm_lock in
191 * get_pages()/vmap()/etc paths, as they can trigger the shrinker.
193 * [1] if someone ever added support for the old 2d cores, there could be
194 * more than one gpu object
196 struct list_head inactive_willneed; /* inactive + potentially unpin/evictable */
197 struct list_head inactive_dontneed; /* inactive + shrinkable */
198 struct list_head inactive_unpinned; /* inactive + purged or unpinned */
199 long shrinkable_count; /* write access under mm_lock */
200 long evictable_count; /* write access under mm_lock */
201 struct mutex mm_lock;
203 struct workqueue_struct *wq;
205 unsigned int num_planes;
206 struct drm_plane *planes[MAX_PLANES];
208 unsigned int num_crtcs;
209 struct drm_crtc *crtcs[MAX_CRTCS];
211 struct msm_drm_thread event_thread[MAX_CRTCS];
213 unsigned int num_encoders;
214 struct drm_encoder *encoders[MAX_ENCODERS];
216 unsigned int num_bridges;
217 struct drm_bridge *bridges[MAX_BRIDGES];
219 unsigned int num_connectors;
220 struct drm_connector *connectors[MAX_CONNECTORS];
223 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
225 /* VRAM carveout, used when no IOMMU: */
229 /* NOTE: mm managed at the page level, size is in # of pages
230 * and position mm_node->start is in # of pages:
233 spinlock_t lock; /* Protects drm_mm node allocation/removal */
236 struct notifier_block vmap_notifier;
237 struct shrinker shrinker;
239 struct drm_atomic_state *pm_state;
241 /* For hang detection, in ms */
242 unsigned int hangcheck_period;
247 * Disable handling of GPU hw error interrupts, to force fallback to
248 * sw hangcheck timer. Written (via debugfs) by igt tests to test
249 * the sw hangcheck mechanism.
251 bool disable_err_irq;
255 uint32_t pixel_format;
258 struct msm_pending_timer;
260 int msm_atomic_prepare_fb(struct drm_plane *plane,
261 struct drm_plane_state *new_state);
262 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
263 struct msm_kms *kms, int crtc_idx);
264 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
265 void msm_atomic_commit_tail(struct drm_atomic_state *state);
266 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
267 void msm_atomic_state_clear(struct drm_atomic_state *state);
268 void msm_atomic_state_free(struct drm_atomic_state *state);
270 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
271 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
273 int msm_gem_init_vma(struct msm_gem_address_space *aspace,
274 struct msm_gem_vma *vma, int npages,
275 u64 range_start, u64 range_end);
276 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
277 struct msm_gem_vma *vma);
278 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
279 struct msm_gem_vma *vma);
280 int msm_gem_map_vma(struct msm_gem_address_space *aspace,
281 struct msm_gem_vma *vma, int prot,
282 struct sg_table *sgt, int npages);
283 void msm_gem_close_vma(struct msm_gem_address_space *aspace,
284 struct msm_gem_vma *vma);
287 struct msm_gem_address_space *
288 msm_gem_address_space_get(struct msm_gem_address_space *aspace);
290 void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
292 struct msm_gem_address_space *
293 msm_gem_address_space_create(struct msm_mmu *mmu, const char *name,
294 u64 va_start, u64 size);
296 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
297 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
299 bool msm_use_mmu(struct drm_device *dev);
301 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
302 struct drm_file *file);
304 #ifdef CONFIG_DEBUG_FS
305 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
308 void msm_gem_shrinker_init(struct drm_device *dev);
309 void msm_gem_shrinker_cleanup(struct drm_device *dev);
311 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
312 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
313 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
314 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
315 struct dma_buf_attachment *attach, struct sg_table *sg);
316 int msm_gem_prime_pin(struct drm_gem_object *obj);
317 void msm_gem_prime_unpin(struct drm_gem_object *obj);
319 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
320 struct msm_gem_address_space *aspace);
321 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
322 struct msm_gem_address_space *aspace);
323 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
324 struct msm_gem_address_space *aspace, int plane);
325 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
326 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
327 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
328 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
329 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
330 int w, int h, int p, uint32_t format);
332 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
333 void msm_fbdev_free(struct drm_device *dev);
336 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
337 struct drm_encoder *encoder);
338 void __init msm_hdmi_register(void);
339 void __exit msm_hdmi_unregister(void);
342 #ifdef CONFIG_DRM_MSM_DSI
343 int dsi_dev_attach(struct platform_device *pdev);
344 void dsi_dev_detach(struct platform_device *pdev);
345 void __init msm_dsi_register(void);
346 void __exit msm_dsi_unregister(void);
347 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
348 struct drm_encoder *encoder);
349 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
350 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
351 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
352 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
354 static inline void __init msm_dsi_register(void)
357 static inline void __exit msm_dsi_unregister(void)
360 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
361 struct drm_device *dev,
362 struct drm_encoder *encoder)
366 static inline void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
369 static inline bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
373 static inline bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
377 static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
383 #ifdef CONFIG_DRM_MSM_DP
384 int __init msm_dp_register(void);
385 void __exit msm_dp_unregister(void);
386 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
387 struct drm_encoder *encoder);
388 int msm_dp_display_enable(struct msm_dp *dp, struct drm_encoder *encoder);
389 int msm_dp_display_disable(struct msm_dp *dp, struct drm_encoder *encoder);
390 int msm_dp_display_pre_disable(struct msm_dp *dp, struct drm_encoder *encoder);
391 void msm_dp_display_mode_set(struct msm_dp *dp, struct drm_encoder *encoder,
392 const struct drm_display_mode *mode,
393 const struct drm_display_mode *adjusted_mode);
395 struct drm_bridge *msm_dp_bridge_init(struct msm_dp *dp_display,
396 struct drm_device *dev,
397 struct drm_encoder *encoder);
398 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
399 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
401 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
404 static inline int __init msm_dp_register(void)
408 static inline void __exit msm_dp_unregister(void)
411 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
412 struct drm_device *dev,
413 struct drm_encoder *encoder)
417 static inline int msm_dp_display_enable(struct msm_dp *dp,
418 struct drm_encoder *encoder)
422 static inline int msm_dp_display_disable(struct msm_dp *dp,
423 struct drm_encoder *encoder)
427 static inline int msm_dp_display_pre_disable(struct msm_dp *dp,
428 struct drm_encoder *encoder)
432 static inline void msm_dp_display_mode_set(struct msm_dp *dp,
433 struct drm_encoder *encoder,
434 const struct drm_display_mode *mode,
435 const struct drm_display_mode *adjusted_mode)
439 static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
443 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
447 static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
448 struct drm_minor *minor)
454 void __init msm_mdp_register(void);
455 void __exit msm_mdp_unregister(void);
456 void __init msm_dpu_register(void);
457 void __exit msm_dpu_unregister(void);
459 #ifdef CONFIG_DEBUG_FS
460 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
461 int msm_debugfs_late_init(struct drm_device *dev);
462 int msm_rd_debugfs_init(struct drm_minor *minor);
463 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
465 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
466 const char *fmt, ...);
467 int msm_perf_debugfs_init(struct drm_minor *minor);
468 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
470 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
472 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
473 struct msm_gem_submit *submit,
474 const char *fmt, ...) {}
475 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
476 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
479 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
481 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
483 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
484 const char *dbgname);
485 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
486 const char *dbgname, phys_addr_t *size);
487 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
488 const char *dbgname);
489 void msm_writel(u32 data, void __iomem *addr);
490 u32 msm_readl(const void __iomem *addr);
491 void msm_rmw(void __iomem *addr, u32 mask, u32 or);
494 * struct msm_hrtimer_work - a helper to combine an hrtimer with kthread_work
496 * @timer: hrtimer to control when the kthread work is triggered
497 * @work: the kthread work
498 * @worker: the kthread worker the work will be scheduled on
500 struct msm_hrtimer_work {
501 struct hrtimer timer;
502 struct kthread_work work;
503 struct kthread_worker *worker;
506 void msm_hrtimer_queue_work(struct msm_hrtimer_work *work,
508 enum hrtimer_mode mode);
509 void msm_hrtimer_work_init(struct msm_hrtimer_work *work,
510 struct kthread_worker *worker,
511 kthread_work_func_t fn,
513 enum hrtimer_mode mode);
515 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
516 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
518 static inline int align_pitch(int width, int bpp)
520 int bytespp = (bpp + 7) / 8;
521 /* adreno needs pitch aligned to 32 pixels: */
522 return bytespp * ALIGN(width, 32);
525 /* for the generated headers: */
526 #define INVALID_IDX(idx) ({BUG(); 0;})
527 #define fui(x) ({BUG(); 0;})
528 #define _mesa_float_to_half(x) ({BUG(); 0;})
531 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
533 /* for conditionally setting boolean flag(s): */
534 #define COND(bool, val) ((bool) ? (val) : 0)
536 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
538 ktime_t now = ktime_get();
539 s64 remaining_jiffies;
541 if (ktime_compare(*timeout, now) < 0) {
542 remaining_jiffies = 0;
544 ktime_t rem = ktime_sub(*timeout, now);
545 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
548 return clamp(remaining_jiffies, 0LL, (s64)INT_MAX);
551 #endif /* __MSM_DRV_H__ */