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 #ifdef CONFIG_FAULT_INJECTION
37 extern struct fault_attr fail_gem_alloc;
38 extern struct fault_attr fail_gem_iova;
40 # define should_fail(attr, size) 0
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;
58 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
60 enum msm_dp_controller {
65 MSM_DP_CONTROLLER_COUNT,
68 enum msm_dsi_controller {
71 MSM_DSI_CONTROLLER_COUNT,
74 #define MSM_GPU_MAX_RINGS 4
75 #define MAX_H_TILES_PER_DISPLAY 2
78 * enum msm_event_wait - type of HW events to wait for
79 * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
80 * @MSM_ENC_TX_COMPLETE - wait for the HW to transfer the frame to panel
81 * @MSM_ENC_VBLANK - wait for the HW VBLANK event (for driver-internal waiters)
84 MSM_ENC_COMMIT_DONE = 0,
90 * struct msm_display_topology - defines a display topology pipeline
91 * @num_lm: number of layer mixers used
92 * @num_intf: number of interfaces the panel is mounted on
93 * @num_dspp: number of dspp blocks used
94 * @num_dsc: number of Display Stream Compression (DSC) blocks used
96 struct msm_display_topology {
103 /* Commit/Event thread specific structure */
104 struct msm_drm_thread {
105 struct drm_device *dev;
106 struct kthread_worker *worker;
109 struct msm_drm_private {
111 struct drm_device *dev;
114 int (*kms_init)(struct drm_device *dev);
116 /* subordinate devices, if present: */
117 struct platform_device *gpu_pdev;
119 /* possibly this should be in the kms component, but it is
120 * shared by both mdp4 and mdp5..
124 /* DSI is shared by mdp4 and mdp5 */
125 struct msm_dsi *dsi[MSM_DSI_CONTROLLER_COUNT];
127 struct msm_dp *dp[MSM_DP_CONTROLLER_COUNT];
129 /* when we have more than one 'msm_gpu' these need to be an array: */
132 /* gpu is only set on open(), but we need this info earlier */
134 bool has_cached_coherent;
136 struct msm_rd_state *rd; /* debugfs to dump all submits */
137 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
138 struct msm_perf_state *perf;
141 * List of all GEM objects (mainly for debugfs, protected by obj_lock
142 * (acquire before per GEM object lock)
144 struct list_head objects;
145 struct mutex obj_lock;
150 * The various LRU's that a GEM object is in at various stages of
151 * it's lifetime. Objects start out in the unbacked LRU. When
152 * pinned (for scannout or permanently mapped GPU buffers, like
153 * ringbuffer, memptr, fw, etc) it moves to the pinned LRU. When
154 * unpinned, it moves into willneed or dontneed LRU depending on
155 * madvise state. When backing pages are evicted (willneed) or
156 * purged (dontneed) it moves back into the unbacked LRU.
158 * The dontneed LRU is considered by the shrinker for objects
159 * that are candidate for purging, and the willneed LRU is
160 * considered for objects that could be evicted.
166 * The LRU for GEM objects without backing pages allocated.
167 * This mostly exists so that objects are always is one
170 struct drm_gem_lru unbacked;
175 * The LRU for pinned GEM objects
177 struct drm_gem_lru pinned;
182 * The LRU for unpinned GEM objects which are in madvise
183 * WILLNEED state (ie. can be evicted)
185 struct drm_gem_lru willneed;
190 * The LRU for unpinned GEM objects which are in madvise
191 * DONTNEED state (ie. can be purged)
193 struct drm_gem_lru dontneed;
198 * Protects manipulation of all of the LRUs.
203 struct workqueue_struct *wq;
205 unsigned int num_crtcs;
207 struct msm_drm_thread event_thread[MAX_CRTCS];
209 /* VRAM carveout, used when no IOMMU: */
213 /* NOTE: mm managed at the page level, size is in # of pages
214 * and position mm_node->start is in # of pages:
217 spinlock_t lock; /* Protects drm_mm node allocation/removal */
220 struct notifier_block vmap_notifier;
221 struct shrinker *shrinker;
223 struct drm_atomic_state *pm_state;
226 * hangcheck_period: For hang detection, in ms
228 * Note that in practice, a submit/job will get at least two hangcheck
229 * periods, due to checking for progress being implemented as simply
230 * "have the CP position registers changed since last time?"
232 unsigned int hangcheck_period;
234 /** gpu_devfreq_config: Devfreq tuning config for the GPU. */
235 struct devfreq_simple_ondemand_data gpu_devfreq_config;
238 * gpu_clamp_to_idle: Enable clamping to idle freq when inactive
240 bool gpu_clamp_to_idle;
245 * Disable handling of GPU hw error interrupts, to force fallback to
246 * sw hangcheck timer. Written (via debugfs) by igt tests to test
247 * the sw hangcheck mechanism.
249 bool disable_err_irq;
253 uint32_t pixel_format;
256 struct msm_pending_timer;
258 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
259 struct msm_kms *kms, int crtc_idx);
260 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
261 void msm_atomic_commit_tail(struct drm_atomic_state *state);
262 int msm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
263 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
264 void msm_atomic_state_clear(struct drm_atomic_state *state);
265 void msm_atomic_state_free(struct drm_atomic_state *state);
267 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
268 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
270 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
271 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
273 struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev);
274 bool msm_use_mmu(struct drm_device *dev);
276 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
277 struct drm_file *file);
279 #ifdef CONFIG_DEBUG_FS
280 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
283 int msm_gem_shrinker_init(struct drm_device *dev);
284 void msm_gem_shrinker_cleanup(struct drm_device *dev);
286 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
287 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
288 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
289 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
290 struct dma_buf_attachment *attach, struct sg_table *sg);
291 int msm_gem_prime_pin(struct drm_gem_object *obj);
292 void msm_gem_prime_unpin(struct drm_gem_object *obj);
294 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
295 struct msm_gem_address_space *aspace, bool needs_dirtyfb);
296 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
297 struct msm_gem_address_space *aspace, bool needed_dirtyfb);
298 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
299 struct msm_gem_address_space *aspace, int plane);
300 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
301 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
302 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
303 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
304 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
305 int w, int h, int p, uint32_t format);
307 #ifdef CONFIG_DRM_FBDEV_EMULATION
308 void msm_fbdev_setup(struct drm_device *dev);
310 static inline void msm_fbdev_setup(struct drm_device *dev)
316 #ifdef CONFIG_DRM_MSM_HDMI
317 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
318 struct drm_encoder *encoder);
319 void __init msm_hdmi_register(void);
320 void __exit msm_hdmi_unregister(void);
322 static inline int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
323 struct drm_encoder *encoder)
327 static inline void __init msm_hdmi_register(void) {}
328 static inline void __exit msm_hdmi_unregister(void) {}
332 #ifdef CONFIG_DRM_MSM_DSI
333 int dsi_dev_attach(struct platform_device *pdev);
334 void dsi_dev_detach(struct platform_device *pdev);
335 void __init msm_dsi_register(void);
336 void __exit msm_dsi_unregister(void);
337 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
338 struct drm_encoder *encoder);
339 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
340 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
341 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
342 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
343 bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi);
344 struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
346 static inline void __init msm_dsi_register(void)
349 static inline void __exit msm_dsi_unregister(void)
352 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
353 struct drm_device *dev,
354 struct drm_encoder *encoder)
358 static inline void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
361 static inline bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
365 static inline bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
369 static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
373 static inline bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi)
378 static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
384 #ifdef CONFIG_DRM_MSM_DP
385 int __init msm_dp_register(void);
386 void __exit msm_dp_unregister(void);
387 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
388 struct drm_encoder *encoder);
389 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
390 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
392 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
393 bool msm_dp_wide_bus_available(const struct msm_dp *dp_display);
396 static inline int __init msm_dp_register(void)
400 static inline void __exit msm_dp_unregister(void)
403 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
404 struct drm_device *dev,
405 struct drm_encoder *encoder)
410 static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
414 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
418 static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
419 struct drm_minor *minor)
423 static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
430 #ifdef CONFIG_DRM_MSM_MDP4
431 void msm_mdp4_register(void);
432 void msm_mdp4_unregister(void);
434 static inline void msm_mdp4_register(void) {}
435 static inline void msm_mdp4_unregister(void) {}
438 #ifdef CONFIG_DRM_MSM_MDP5
439 void msm_mdp_register(void);
440 void msm_mdp_unregister(void);
442 static inline void msm_mdp_register(void) {}
443 static inline void msm_mdp_unregister(void) {}
446 #ifdef CONFIG_DRM_MSM_DPU
447 void msm_dpu_register(void);
448 void msm_dpu_unregister(void);
450 static inline void msm_dpu_register(void) {}
451 static inline void msm_dpu_unregister(void) {}
454 #ifdef CONFIG_DRM_MSM_MDSS
455 void msm_mdss_register(void);
456 void msm_mdss_unregister(void);
458 static inline void msm_mdss_register(void) {}
459 static inline void msm_mdss_unregister(void) {}
462 #ifdef CONFIG_DEBUG_FS
463 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
464 int msm_debugfs_late_init(struct drm_device *dev);
465 int msm_rd_debugfs_init(struct drm_minor *minor);
466 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
468 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
469 const char *fmt, ...);
470 int msm_perf_debugfs_init(struct drm_minor *minor);
471 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
473 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
475 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
476 struct msm_gem_submit *submit,
477 const char *fmt, ...) {}
478 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
479 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
482 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
484 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
486 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name);
487 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
489 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name);
491 struct icc_path *msm_icc_get(struct device *dev, const char *name);
493 #define msm_writel(data, addr) writel((data), (addr))
494 #define msm_readl(addr) readl((addr))
496 static inline void msm_rmw(void __iomem *addr, u32 mask, u32 or)
498 u32 val = msm_readl(addr);
501 msm_writel(val | or, addr);
505 * struct msm_hrtimer_work - a helper to combine an hrtimer with kthread_work
507 * @timer: hrtimer to control when the kthread work is triggered
508 * @work: the kthread work
509 * @worker: the kthread worker the work will be scheduled on
511 struct msm_hrtimer_work {
512 struct hrtimer timer;
513 struct kthread_work work;
514 struct kthread_worker *worker;
517 void msm_hrtimer_queue_work(struct msm_hrtimer_work *work,
519 enum hrtimer_mode mode);
520 void msm_hrtimer_work_init(struct msm_hrtimer_work *work,
521 struct kthread_worker *worker,
522 kthread_work_func_t fn,
524 enum hrtimer_mode mode);
526 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
527 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
529 static inline int align_pitch(int width, int bpp)
531 int bytespp = (bpp + 7) / 8;
532 /* adreno needs pitch aligned to 32 pixels: */
533 return bytespp * ALIGN(width, 32);
536 /* for the generated headers: */
537 #define INVALID_IDX(idx) ({BUG(); 0;})
538 #define fui(x) ({BUG(); 0;})
539 #define _mesa_float_to_half(x) ({BUG(); 0;})
542 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
544 /* for conditionally setting boolean flag(s): */
545 #define COND(bool, val) ((bool) ? (val) : 0)
547 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
549 ktime_t now = ktime_get();
550 s64 remaining_jiffies;
552 if (ktime_compare(*timeout, now) < 0) {
553 remaining_jiffies = 0;
555 ktime_t rem = ktime_sub(*timeout, now);
556 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
559 return clamp(remaining_jiffies, 1LL, (s64)INT_MAX);
564 extern const struct component_master_ops msm_drm_ops;
566 int msm_kms_pm_prepare(struct device *dev);
567 void msm_kms_pm_complete(struct device *dev);
569 int msm_drv_probe(struct device *dev,
570 int (*kms_init)(struct drm_device *dev),
571 struct msm_kms *kms);
572 void msm_kms_shutdown(struct platform_device *pdev);
575 #endif /* __MSM_DRV_H__ */