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
5 * Author: Rob Clark <robdclark@gmail.com>
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 unsigned int num_bridges;
210 struct drm_bridge *bridges[MAX_BRIDGES];
212 /* VRAM carveout, used when no IOMMU: */
216 /* NOTE: mm managed at the page level, size is in # of pages
217 * and position mm_node->start is in # of pages:
220 spinlock_t lock; /* Protects drm_mm node allocation/removal */
223 struct notifier_block vmap_notifier;
224 struct shrinker shrinker;
226 struct drm_atomic_state *pm_state;
229 * hangcheck_period: For hang detection, in ms
231 * Note that in practice, a submit/job will get at least two hangcheck
232 * periods, due to checking for progress being implemented as simply
233 * "have the CP position registers changed since last time?"
235 unsigned int hangcheck_period;
237 /** gpu_devfreq_config: Devfreq tuning config for the GPU. */
238 struct devfreq_simple_ondemand_data gpu_devfreq_config;
241 * gpu_clamp_to_idle: Enable clamping to idle freq when inactive
243 bool gpu_clamp_to_idle;
248 * Disable handling of GPU hw error interrupts, to force fallback to
249 * sw hangcheck timer. Written (via debugfs) by igt tests to test
250 * the sw hangcheck mechanism.
252 bool disable_err_irq;
256 uint32_t pixel_format;
259 struct msm_pending_timer;
261 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
262 struct msm_kms *kms, int crtc_idx);
263 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
264 void msm_atomic_commit_tail(struct drm_atomic_state *state);
265 int msm_atomic_check(struct drm_device *dev, 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_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
274 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
276 struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev);
277 bool msm_use_mmu(struct drm_device *dev);
279 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
280 struct drm_file *file);
282 #ifdef CONFIG_DEBUG_FS
283 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
286 void msm_gem_shrinker_init(struct drm_device *dev);
287 void msm_gem_shrinker_cleanup(struct drm_device *dev);
289 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
290 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
291 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
292 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
293 struct dma_buf_attachment *attach, struct sg_table *sg);
294 int msm_gem_prime_pin(struct drm_gem_object *obj);
295 void msm_gem_prime_unpin(struct drm_gem_object *obj);
297 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
298 struct msm_gem_address_space *aspace, bool needs_dirtyfb);
299 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
300 struct msm_gem_address_space *aspace, bool needed_dirtyfb);
301 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
302 struct msm_gem_address_space *aspace, int plane);
303 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
304 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
305 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
306 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
307 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
308 int w, int h, int p, uint32_t format);
310 #ifdef CONFIG_DRM_FBDEV_EMULATION
311 void msm_fbdev_setup(struct drm_device *dev);
313 static inline void msm_fbdev_setup(struct drm_device *dev)
319 #ifdef CONFIG_DRM_MSM_HDMI
320 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
321 struct drm_encoder *encoder);
322 void __init msm_hdmi_register(void);
323 void __exit msm_hdmi_unregister(void);
325 static inline int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
326 struct drm_encoder *encoder)
330 static inline void __init msm_hdmi_register(void) {}
331 static inline void __exit msm_hdmi_unregister(void) {}
335 #ifdef CONFIG_DRM_MSM_DSI
336 int dsi_dev_attach(struct platform_device *pdev);
337 void dsi_dev_detach(struct platform_device *pdev);
338 void __init msm_dsi_register(void);
339 void __exit msm_dsi_unregister(void);
340 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
341 struct drm_encoder *encoder);
342 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
343 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
344 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
345 bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
346 struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
348 static inline void __init msm_dsi_register(void)
351 static inline void __exit msm_dsi_unregister(void)
354 static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
355 struct drm_device *dev,
356 struct drm_encoder *encoder)
360 static inline void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
363 static inline bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
367 static inline bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi)
371 static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
376 static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
382 #ifdef CONFIG_DRM_MSM_DP
383 int __init msm_dp_register(void);
384 void __exit msm_dp_unregister(void);
385 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
386 struct drm_encoder *encoder);
387 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
388 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
390 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
391 bool msm_dp_wide_bus_available(const struct msm_dp *dp_display);
394 static inline int __init msm_dp_register(void)
398 static inline void __exit msm_dp_unregister(void)
401 static inline int msm_dp_modeset_init(struct msm_dp *dp_display,
402 struct drm_device *dev,
403 struct drm_encoder *encoder)
408 static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
412 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
416 static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
417 struct drm_minor *minor)
421 static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
428 #ifdef CONFIG_DRM_MSM_MDP4
429 void msm_mdp4_register(void);
430 void msm_mdp4_unregister(void);
432 static inline void msm_mdp4_register(void) {}
433 static inline void msm_mdp4_unregister(void) {}
436 #ifdef CONFIG_DRM_MSM_MDP5
437 void msm_mdp_register(void);
438 void msm_mdp_unregister(void);
440 static inline void msm_mdp_register(void) {}
441 static inline void msm_mdp_unregister(void) {}
444 #ifdef CONFIG_DRM_MSM_DPU
445 void msm_dpu_register(void);
446 void msm_dpu_unregister(void);
448 static inline void msm_dpu_register(void) {}
449 static inline void msm_dpu_unregister(void) {}
452 #ifdef CONFIG_DRM_MSM_MDSS
453 void msm_mdss_register(void);
454 void msm_mdss_unregister(void);
456 static inline void msm_mdss_register(void) {}
457 static inline void msm_mdss_unregister(void) {}
460 #ifdef CONFIG_DEBUG_FS
461 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
462 int msm_debugfs_late_init(struct drm_device *dev);
463 int msm_rd_debugfs_init(struct drm_minor *minor);
464 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
466 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
467 const char *fmt, ...);
468 int msm_perf_debugfs_init(struct drm_minor *minor);
469 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
471 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
473 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
474 struct msm_gem_submit *submit,
475 const char *fmt, ...) {}
476 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
477 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
480 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
482 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
484 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name);
485 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
487 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name);
489 struct icc_path *msm_icc_get(struct device *dev, const char *name);
491 #define msm_writel(data, addr) writel((data), (addr))
492 #define msm_readl(addr) readl((addr))
494 static inline void msm_rmw(void __iomem *addr, u32 mask, u32 or)
496 u32 val = msm_readl(addr);
499 msm_writel(val | or, addr);
503 * struct msm_hrtimer_work - a helper to combine an hrtimer with kthread_work
505 * @timer: hrtimer to control when the kthread work is triggered
506 * @work: the kthread work
507 * @worker: the kthread worker the work will be scheduled on
509 struct msm_hrtimer_work {
510 struct hrtimer timer;
511 struct kthread_work work;
512 struct kthread_worker *worker;
515 void msm_hrtimer_queue_work(struct msm_hrtimer_work *work,
517 enum hrtimer_mode mode);
518 void msm_hrtimer_work_init(struct msm_hrtimer_work *work,
519 struct kthread_worker *worker,
520 kthread_work_func_t fn,
522 enum hrtimer_mode mode);
524 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
525 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
527 static inline int align_pitch(int width, int bpp)
529 int bytespp = (bpp + 7) / 8;
530 /* adreno needs pitch aligned to 32 pixels: */
531 return bytespp * ALIGN(width, 32);
534 /* for the generated headers: */
535 #define INVALID_IDX(idx) ({BUG(); 0;})
536 #define fui(x) ({BUG(); 0;})
537 #define _mesa_float_to_half(x) ({BUG(); 0;})
540 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
542 /* for conditionally setting boolean flag(s): */
543 #define COND(bool, val) ((bool) ? (val) : 0)
545 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
547 ktime_t now = ktime_get();
548 s64 remaining_jiffies;
550 if (ktime_compare(*timeout, now) < 0) {
551 remaining_jiffies = 0;
553 ktime_t rem = ktime_sub(*timeout, now);
554 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
557 return clamp(remaining_jiffies, 1LL, (s64)INT_MAX);
562 extern const struct component_master_ops msm_drm_ops;
564 int msm_pm_prepare(struct device *dev);
565 void msm_pm_complete(struct device *dev);
567 int msm_drv_probe(struct device *dev,
568 int (*kms_init)(struct drm_device *dev));
569 void msm_drv_shutdown(struct platform_device *pdev);
572 #endif /* __MSM_DRV_H__ */