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_print.h>
32 #include <drm/drm_probe_helper.h>
33 #include <drm/display/drm_dsc.h>
34 #include <drm/msm_drm.h>
35 #include <drm/drm_gem.h>
37 extern struct fault_attr fail_gem_alloc;
38 extern struct fault_attr fail_gem_iova;
41 struct drm_fb_helper_surface_size;
48 struct msm_perf_state;
49 struct msm_gem_submit;
50 struct msm_fence_context;
51 struct msm_gem_address_space;
53 struct msm_disp_state;
57 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
59 enum msm_dp_controller {
64 MSM_DP_CONTROLLER_COUNT,
67 enum msm_dsi_controller {
70 MSM_DSI_CONTROLLER_COUNT,
73 #define MSM_GPU_MAX_RINGS 4
75 /* Commit/Event thread specific structure */
76 struct msm_drm_thread {
77 struct drm_device *dev;
78 struct kthread_worker *worker;
81 struct msm_drm_private {
83 struct drm_device *dev;
86 int (*kms_init)(struct drm_device *dev);
88 /* subordinate devices, if present: */
89 struct platform_device *gpu_pdev;
91 /* possibly this should be in the kms component, but it is
92 * shared by both mdp4 and mdp5..
96 /* DSI is shared by mdp4 and mdp5 */
97 struct msm_dsi *dsi[MSM_DSI_CONTROLLER_COUNT];
99 struct msm_dp *dp[MSM_DP_CONTROLLER_COUNT];
101 /* when we have more than one 'msm_gpu' these need to be an array: */
104 /* gpu is only set on open(), but we need this info earlier */
106 bool has_cached_coherent;
108 struct msm_rd_state *rd; /* debugfs to dump all submits */
109 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
110 struct msm_perf_state *perf;
113 * total_mem: Total/global amount of memory backing GEM objects.
115 atomic64_t total_mem;
118 * List of all GEM objects (mainly for debugfs, protected by obj_lock
119 * (acquire before per GEM object lock)
121 struct list_head objects;
122 struct mutex obj_lock;
127 * The various LRU's that a GEM object is in at various stages of
128 * it's lifetime. Objects start out in the unbacked LRU. When
129 * pinned (for scannout or permanently mapped GPU buffers, like
130 * ringbuffer, memptr, fw, etc) it moves to the pinned LRU. When
131 * unpinned, it moves into willneed or dontneed LRU depending on
132 * madvise state. When backing pages are evicted (willneed) or
133 * purged (dontneed) it moves back into the unbacked LRU.
135 * The dontneed LRU is considered by the shrinker for objects
136 * that are candidate for purging, and the willneed LRU is
137 * considered for objects that could be evicted.
143 * The LRU for GEM objects without backing pages allocated.
144 * This mostly exists so that objects are always is one
147 struct drm_gem_lru unbacked;
152 * The LRU for pinned GEM objects
154 struct drm_gem_lru pinned;
159 * The LRU for unpinned GEM objects which are in madvise
160 * WILLNEED state (ie. can be evicted)
162 struct drm_gem_lru willneed;
167 * The LRU for unpinned GEM objects which are in madvise
168 * DONTNEED state (ie. can be purged)
170 struct drm_gem_lru dontneed;
175 * Protects manipulation of all of the LRUs.
180 struct workqueue_struct *wq;
182 unsigned int num_crtcs;
184 struct msm_drm_thread event_thread[MAX_CRTCS];
186 /* VRAM carveout, used when no IOMMU: */
190 /* NOTE: mm managed at the page level, size is in # of pages
191 * and position mm_node->start is in # of pages:
194 spinlock_t lock; /* Protects drm_mm node allocation/removal */
197 struct notifier_block vmap_notifier;
198 struct shrinker *shrinker;
201 * hangcheck_period: For hang detection, in ms
203 * Note that in practice, a submit/job will get at least two hangcheck
204 * periods, due to checking for progress being implemented as simply
205 * "have the CP position registers changed since last time?"
207 unsigned int hangcheck_period;
209 /** gpu_devfreq_config: Devfreq tuning config for the GPU. */
210 struct devfreq_simple_ondemand_data gpu_devfreq_config;
213 * gpu_clamp_to_idle: Enable clamping to idle freq when inactive
215 bool gpu_clamp_to_idle;
220 * Disable handling of GPU hw error interrupts, to force fallback to
221 * sw hangcheck timer. Written (via debugfs) by igt tests to test
222 * the sw hangcheck mechanism.
224 bool disable_err_irq;
227 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format, uint64_t modifier);
229 struct msm_pending_timer;
231 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
232 struct msm_kms *kms, int crtc_idx);
233 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
234 void msm_atomic_commit_tail(struct drm_atomic_state *state);
235 int msm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
236 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
238 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
239 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
241 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
242 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
244 struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev);
245 bool msm_use_mmu(struct drm_device *dev);
247 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
248 struct drm_file *file);
250 #ifdef CONFIG_DEBUG_FS
251 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
254 int msm_gem_shrinker_init(struct drm_device *dev);
255 void msm_gem_shrinker_cleanup(struct drm_device *dev);
257 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
258 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
259 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
260 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
261 struct dma_buf_attachment *attach, struct sg_table *sg);
262 int msm_gem_prime_pin(struct drm_gem_object *obj);
263 void msm_gem_prime_unpin(struct drm_gem_object *obj);
265 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
266 struct msm_gem_address_space *aspace, bool needs_dirtyfb);
267 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
268 struct msm_gem_address_space *aspace, bool needed_dirtyfb);
269 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
270 struct msm_gem_address_space *aspace, int plane);
271 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
272 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
273 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
274 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
275 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
276 int w, int h, int p, uint32_t format);
278 #ifdef CONFIG_DRM_FBDEV_EMULATION
279 int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
280 struct drm_fb_helper_surface_size *sizes);
281 #define MSM_FBDEV_DRIVER_OPS \
282 .fbdev_probe = msm_fbdev_driver_fbdev_probe
284 #define MSM_FBDEV_DRIVER_OPS \
289 #ifdef CONFIG_DRM_MSM_HDMI
290 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
291 struct drm_encoder *encoder);
292 void __init msm_hdmi_register(void);
293 void __exit msm_hdmi_unregister(void);
295 static inline int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
296 struct drm_encoder *encoder)
300 static inline void __init msm_hdmi_register(void) {}
301 static inline void __exit msm_hdmi_unregister(void) {}
305 #ifdef CONFIG_DRM_MSM_DSI
306 int dsi_dev_attach(struct platform_device *pdev);
307 void dsi_dev_detach(struct platform_device *pdev);
308 void __init msm_dsi_register(void);
309 void __exit msm_dsi_unregister(void);
310 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
311 struct drm_encoder *encoder);
312 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
313 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
314 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
315 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
316 bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi);
317 struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
318 const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi);
320 static inline void __init msm_dsi_register(void)
323 static inline void __exit msm_dsi_unregister(void)
326 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
327 struct drm_device *dev,
328 struct drm_encoder *encoder)
332 static inline void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
335 static inline bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
339 static inline bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
343 static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
347 static inline bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi)
352 static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
357 static inline const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi)
363 #ifdef CONFIG_DRM_MSM_DP
364 int __init msm_dp_register(void);
365 void __exit msm_dp_unregister(void);
366 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
367 struct drm_encoder *encoder, bool yuv_supported);
368 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
369 bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display,
370 const struct drm_display_mode *mode);
371 bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display,
372 const struct drm_display_mode *mode);
373 bool msm_dp_wide_bus_available(const struct msm_dp *dp_display);
376 static inline int __init msm_dp_register(void)
380 static inline void __exit msm_dp_unregister(void)
383 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
384 struct drm_device *dev,
385 struct drm_encoder *encoder,
391 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
395 static inline bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display,
396 const struct drm_display_mode *mode)
401 static inline bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display,
402 const struct drm_display_mode *mode)
407 static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
414 #ifdef CONFIG_DRM_MSM_MDP4
415 void msm_mdp4_register(void);
416 void msm_mdp4_unregister(void);
418 static inline void msm_mdp4_register(void) {}
419 static inline void msm_mdp4_unregister(void) {}
422 #ifdef CONFIG_DRM_MSM_MDP5
423 void msm_mdp_register(void);
424 void msm_mdp_unregister(void);
426 static inline void msm_mdp_register(void) {}
427 static inline void msm_mdp_unregister(void) {}
430 #ifdef CONFIG_DRM_MSM_DPU
431 void msm_dpu_register(void);
432 void msm_dpu_unregister(void);
434 static inline void msm_dpu_register(void) {}
435 static inline void msm_dpu_unregister(void) {}
438 #ifdef CONFIG_DRM_MSM_MDSS
439 void msm_mdss_register(void);
440 void msm_mdss_unregister(void);
442 static inline void msm_mdss_register(void) {}
443 static inline void msm_mdss_unregister(void) {}
446 #ifdef CONFIG_DEBUG_FS
447 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
448 int msm_debugfs_late_init(struct drm_device *dev);
449 int msm_rd_debugfs_init(struct drm_minor *minor);
450 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
452 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
453 const char *fmt, ...);
454 int msm_perf_debugfs_init(struct drm_minor *minor);
455 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
457 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
459 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
460 struct msm_gem_submit *submit,
461 const char *fmt, ...) {}
462 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
463 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
466 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
468 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
470 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name);
471 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
473 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name);
474 void __iomem *msm_ioremap_mdss(struct platform_device *mdss_pdev,
475 struct platform_device *dev,
478 struct icc_path *msm_icc_get(struct device *dev, const char *name);
480 static inline void msm_rmw(void __iomem *addr, u32 mask, u32 or)
482 u32 val = readl(addr);
485 writel(val | or, addr);
489 * struct msm_hrtimer_work - a helper to combine an hrtimer with kthread_work
491 * @timer: hrtimer to control when the kthread work is triggered
492 * @work: the kthread work
493 * @worker: the kthread worker the work will be scheduled on
495 struct msm_hrtimer_work {
496 struct hrtimer timer;
497 struct kthread_work work;
498 struct kthread_worker *worker;
501 void msm_hrtimer_queue_work(struct msm_hrtimer_work *work,
503 enum hrtimer_mode mode);
504 void msm_hrtimer_work_init(struct msm_hrtimer_work *work,
505 struct kthread_worker *worker,
506 kthread_work_func_t fn,
508 enum hrtimer_mode mode);
510 /* Helper for returning a UABI error with optional logging which can make
511 * it easier for userspace to understand what it is doing wrong.
513 #define UERR(err, drm, fmt, ...) \
514 ({ DRM_DEV_DEBUG_DRIVER((drm)->dev, fmt, ##__VA_ARGS__); -(err); })
516 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
517 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
519 static inline int align_pitch(int width, int bpp)
521 int bytespp = (bpp + 7) / 8;
522 /* adreno needs pitch aligned to 32 pixels: */
523 return bytespp * ALIGN(width, 32);
526 /* for the generated headers: */
527 #define INVALID_IDX(idx) ({BUG(); 0;})
528 #define fui(x) ({BUG(); 0;})
529 #define _mesa_float_to_half(x) ({BUG(); 0;})
532 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
534 /* for conditionally setting boolean flag(s): */
535 #define COND(bool, val) ((bool) ? (val) : 0)
537 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
539 ktime_t now = ktime_get();
540 s64 remaining_jiffies;
542 if (ktime_compare(*timeout, now) < 0) {
543 remaining_jiffies = 0;
545 ktime_t rem = ktime_sub(*timeout, now);
546 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
549 return clamp(remaining_jiffies, 1LL, (s64)INT_MAX);
554 extern const struct component_master_ops msm_drm_ops;
556 int msm_kms_pm_prepare(struct device *dev);
557 void msm_kms_pm_complete(struct device *dev);
559 int msm_drv_probe(struct device *dev,
560 int (*kms_init)(struct drm_device *dev),
561 struct msm_kms *kms);
562 void msm_kms_shutdown(struct platform_device *pdev);
564 bool msm_disp_drv_should_bind(struct device *dev, bool dpu_driver);
566 #endif /* __MSM_DRV_H__ */