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/devfreq.h>
15 #include <linux/module.h>
16 #include <linux/component.h>
17 #include <linux/platform_device.h>
19 #include <linux/pm_runtime.h>
20 #include <linux/slab.h>
21 #include <linux/list.h>
22 #include <linux/iommu.h>
23 #include <linux/types.h>
24 #include <linux/of_graph.h>
25 #include <linux/of_device.h>
26 #include <linux/sizes.h>
27 #include <linux/kthread.h>
29 #include <drm/drm_atomic.h>
30 #include <drm/drm_atomic_helper.h>
31 #include <drm/drm_probe_helper.h>
32 #include <drm/display/drm_dsc.h>
33 #include <drm/msm_drm.h>
34 #include <drm/drm_gem.h>
36 extern struct fault_attr fail_gem_alloc;
37 extern struct fault_attr fail_gem_iova;
40 struct drm_fb_helper_surface_size;
47 struct msm_perf_state;
48 struct msm_gem_submit;
49 struct msm_fence_context;
50 struct msm_gem_address_space;
52 struct msm_disp_state;
56 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
58 enum msm_dp_controller {
63 MSM_DP_CONTROLLER_COUNT,
66 enum msm_dsi_controller {
69 MSM_DSI_CONTROLLER_COUNT,
72 #define MSM_GPU_MAX_RINGS 4
74 /* Commit/Event thread specific structure */
75 struct msm_drm_thread {
76 struct drm_device *dev;
77 struct kthread_worker *worker;
80 struct msm_drm_private {
82 struct drm_device *dev;
85 int (*kms_init)(struct drm_device *dev);
87 /* subordinate devices, if present: */
88 struct platform_device *gpu_pdev;
90 /* possibly this should be in the kms component, but it is
91 * shared by both mdp4 and mdp5..
95 /* DSI is shared by mdp4 and mdp5 */
96 struct msm_dsi *dsi[MSM_DSI_CONTROLLER_COUNT];
98 struct msm_dp *dp[MSM_DP_CONTROLLER_COUNT];
100 /* when we have more than one 'msm_gpu' these need to be an array: */
103 /* gpu is only set on open(), but we need this info earlier */
105 bool has_cached_coherent;
107 struct msm_rd_state *rd; /* debugfs to dump all submits */
108 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
109 struct msm_perf_state *perf;
112 * total_mem: Total/global amount of memory backing GEM objects.
114 atomic64_t total_mem;
117 * List of all GEM objects (mainly for debugfs, protected by obj_lock
118 * (acquire before per GEM object lock)
120 struct list_head objects;
121 struct mutex obj_lock;
126 * The various LRU's that a GEM object is in at various stages of
127 * it's lifetime. Objects start out in the unbacked LRU. When
128 * pinned (for scannout or permanently mapped GPU buffers, like
129 * ringbuffer, memptr, fw, etc) it moves to the pinned LRU. When
130 * unpinned, it moves into willneed or dontneed LRU depending on
131 * madvise state. When backing pages are evicted (willneed) or
132 * purged (dontneed) it moves back into the unbacked LRU.
134 * The dontneed LRU is considered by the shrinker for objects
135 * that are candidate for purging, and the willneed LRU is
136 * considered for objects that could be evicted.
142 * The LRU for GEM objects without backing pages allocated.
143 * This mostly exists so that objects are always is one
146 struct drm_gem_lru unbacked;
151 * The LRU for pinned GEM objects
153 struct drm_gem_lru pinned;
158 * The LRU for unpinned GEM objects which are in madvise
159 * WILLNEED state (ie. can be evicted)
161 struct drm_gem_lru willneed;
166 * The LRU for unpinned GEM objects which are in madvise
167 * DONTNEED state (ie. can be purged)
169 struct drm_gem_lru dontneed;
174 * Protects manipulation of all of the LRUs.
179 struct workqueue_struct *wq;
181 unsigned int num_crtcs;
183 struct msm_drm_thread event_thread[MAX_CRTCS];
185 /* VRAM carveout, used when no IOMMU: */
189 /* NOTE: mm managed at the page level, size is in # of pages
190 * and position mm_node->start is in # of pages:
193 spinlock_t lock; /* Protects drm_mm node allocation/removal */
196 struct notifier_block vmap_notifier;
197 struct shrinker *shrinker;
200 * hangcheck_period: For hang detection, in ms
202 * Note that in practice, a submit/job will get at least two hangcheck
203 * periods, due to checking for progress being implemented as simply
204 * "have the CP position registers changed since last time?"
206 unsigned int hangcheck_period;
208 /** gpu_devfreq_config: Devfreq tuning config for the GPU. */
209 struct devfreq_simple_ondemand_data gpu_devfreq_config;
212 * gpu_clamp_to_idle: Enable clamping to idle freq when inactive
214 bool gpu_clamp_to_idle;
219 * Disable handling of GPU hw error interrupts, to force fallback to
220 * sw hangcheck timer. Written (via debugfs) by igt tests to test
221 * the sw hangcheck mechanism.
223 bool disable_err_irq;
226 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format, uint64_t modifier);
228 struct msm_pending_timer;
230 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
231 struct msm_kms *kms, int crtc_idx);
232 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
233 void msm_atomic_commit_tail(struct drm_atomic_state *state);
234 int msm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
235 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
237 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
238 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
240 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
241 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
243 struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev);
244 bool msm_use_mmu(struct drm_device *dev);
246 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
247 struct drm_file *file);
249 #ifdef CONFIG_DEBUG_FS
250 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
253 int msm_gem_shrinker_init(struct drm_device *dev);
254 void msm_gem_shrinker_cleanup(struct drm_device *dev);
256 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
257 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
258 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
259 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
260 struct dma_buf_attachment *attach, struct sg_table *sg);
261 int msm_gem_prime_pin(struct drm_gem_object *obj);
262 void msm_gem_prime_unpin(struct drm_gem_object *obj);
264 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
265 struct msm_gem_address_space *aspace, bool needs_dirtyfb);
266 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
267 struct msm_gem_address_space *aspace, bool needed_dirtyfb);
268 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
269 struct msm_gem_address_space *aspace, int plane);
270 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
271 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
272 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
273 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
274 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
275 int w, int h, int p, uint32_t format);
277 #ifdef CONFIG_DRM_FBDEV_EMULATION
278 int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
279 struct drm_fb_helper_surface_size *sizes);
280 #define MSM_FBDEV_DRIVER_OPS \
281 .fbdev_probe = msm_fbdev_driver_fbdev_probe
283 #define MSM_FBDEV_DRIVER_OPS \
288 #ifdef CONFIG_DRM_MSM_HDMI
289 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
290 struct drm_encoder *encoder);
291 void __init msm_hdmi_register(void);
292 void __exit msm_hdmi_unregister(void);
294 static inline int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
295 struct drm_encoder *encoder)
299 static inline void __init msm_hdmi_register(void) {}
300 static inline void __exit msm_hdmi_unregister(void) {}
304 #ifdef CONFIG_DRM_MSM_DSI
305 int dsi_dev_attach(struct platform_device *pdev);
306 void dsi_dev_detach(struct platform_device *pdev);
307 void __init msm_dsi_register(void);
308 void __exit msm_dsi_unregister(void);
309 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
310 struct drm_encoder *encoder);
311 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
312 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
313 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
314 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
315 bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi);
316 struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
317 const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi);
319 static inline void __init msm_dsi_register(void)
322 static inline void __exit msm_dsi_unregister(void)
325 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
326 struct drm_device *dev,
327 struct drm_encoder *encoder)
331 static inline void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
334 static inline bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
338 static inline bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
342 static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
346 static inline bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi)
351 static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
356 static inline const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi)
362 #ifdef CONFIG_DRM_MSM_DP
363 int __init msm_dp_register(void);
364 void __exit msm_dp_unregister(void);
365 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
366 struct drm_encoder *encoder, bool yuv_supported);
367 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
368 bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display,
369 const struct drm_display_mode *mode);
370 bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display,
371 const struct drm_display_mode *mode);
372 bool msm_dp_wide_bus_available(const struct msm_dp *dp_display);
375 static inline int __init msm_dp_register(void)
379 static inline void __exit msm_dp_unregister(void)
382 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
383 struct drm_device *dev,
384 struct drm_encoder *encoder,
390 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
394 static inline bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display,
395 const struct drm_display_mode *mode)
400 static inline bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display,
401 const struct drm_display_mode *mode)
406 static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
413 #ifdef CONFIG_DRM_MSM_MDP4
414 void msm_mdp4_register(void);
415 void msm_mdp4_unregister(void);
417 static inline void msm_mdp4_register(void) {}
418 static inline void msm_mdp4_unregister(void) {}
421 #ifdef CONFIG_DRM_MSM_MDP5
422 void msm_mdp_register(void);
423 void msm_mdp_unregister(void);
425 static inline void msm_mdp_register(void) {}
426 static inline void msm_mdp_unregister(void) {}
429 #ifdef CONFIG_DRM_MSM_DPU
430 void msm_dpu_register(void);
431 void msm_dpu_unregister(void);
433 static inline void msm_dpu_register(void) {}
434 static inline void msm_dpu_unregister(void) {}
437 #ifdef CONFIG_DRM_MSM_MDSS
438 void msm_mdss_register(void);
439 void msm_mdss_unregister(void);
441 static inline void msm_mdss_register(void) {}
442 static inline void msm_mdss_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 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
472 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name);
473 void __iomem *msm_ioremap_mdss(struct platform_device *mdss_pdev,
474 struct platform_device *dev,
477 struct icc_path *msm_icc_get(struct device *dev, const char *name);
479 static inline void msm_rmw(void __iomem *addr, u32 mask, u32 or)
481 u32 val = readl(addr);
484 writel(val | or, addr);
488 * struct msm_hrtimer_work - a helper to combine an hrtimer with kthread_work
490 * @timer: hrtimer to control when the kthread work is triggered
491 * @work: the kthread work
492 * @worker: the kthread worker the work will be scheduled on
494 struct msm_hrtimer_work {
495 struct hrtimer timer;
496 struct kthread_work work;
497 struct kthread_worker *worker;
500 void msm_hrtimer_queue_work(struct msm_hrtimer_work *work,
502 enum hrtimer_mode mode);
503 void msm_hrtimer_work_init(struct msm_hrtimer_work *work,
504 struct kthread_worker *worker,
505 kthread_work_func_t fn,
507 enum hrtimer_mode mode);
509 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
510 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
512 static inline int align_pitch(int width, int bpp)
514 int bytespp = (bpp + 7) / 8;
515 /* adreno needs pitch aligned to 32 pixels: */
516 return bytespp * ALIGN(width, 32);
519 /* for the generated headers: */
520 #define INVALID_IDX(idx) ({BUG(); 0;})
521 #define fui(x) ({BUG(); 0;})
522 #define _mesa_float_to_half(x) ({BUG(); 0;})
525 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
527 /* for conditionally setting boolean flag(s): */
528 #define COND(bool, val) ((bool) ? (val) : 0)
530 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
532 ktime_t now = ktime_get();
533 s64 remaining_jiffies;
535 if (ktime_compare(*timeout, now) < 0) {
536 remaining_jiffies = 0;
538 ktime_t rem = ktime_sub(*timeout, now);
539 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
542 return clamp(remaining_jiffies, 1LL, (s64)INT_MAX);
547 extern const struct component_master_ops msm_drm_ops;
549 int msm_kms_pm_prepare(struct device *dev);
550 void msm_kms_pm_complete(struct device *dev);
552 int msm_drv_probe(struct device *dev,
553 int (*kms_init)(struct drm_device *dev),
554 struct msm_kms *kms);
555 void msm_kms_shutdown(struct platform_device *pdev);
557 bool msm_disp_drv_should_bind(struct device *dev, bool dpu_driver);
559 #endif /* __MSM_DRV_H__ */