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/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 #define MSM_GPU_MAX_RINGS 4
64 #define MAX_H_TILES_PER_DISPLAY 2
67 * enum msm_display_caps - features/capabilities supported by displays
68 * @MSM_DISPLAY_CAP_VID_MODE: Video or "active" mode supported
69 * @MSM_DISPLAY_CAP_CMD_MODE: Command mode supported
70 * @MSM_DISPLAY_CAP_HOT_PLUG: Hot plug detection supported
71 * @MSM_DISPLAY_CAP_EDID: EDID supported
73 enum msm_display_caps {
74 MSM_DISPLAY_CAP_VID_MODE = BIT(0),
75 MSM_DISPLAY_CAP_CMD_MODE = BIT(1),
76 MSM_DISPLAY_CAP_HOT_PLUG = BIT(2),
77 MSM_DISPLAY_CAP_EDID = BIT(3),
81 * enum msm_event_wait - type of HW events to wait for
82 * @MSM_ENC_COMMIT_DONE - wait for the driver to flush the registers to HW
83 * @MSM_ENC_TX_COMPLETE - wait for the HW to transfer the frame to panel
84 * @MSM_ENC_VBLANK - wait for the HW VBLANK event (for driver-internal waiters)
87 MSM_ENC_COMMIT_DONE = 0,
93 * struct msm_display_topology - defines a display topology pipeline
94 * @num_lm: number of layer mixers used
95 * @num_enc: number of compression encoder blocks used
96 * @num_intf: number of interfaces the panel is mounted on
98 struct msm_display_topology {
106 * struct msm_display_info - defines display properties
107 * @intf_type: DRM_MODE_ENCODER_ type
108 * @capabilities: Bitmask of display flags
109 * @num_of_h_tiles: Number of horizontal tiles in case of split interface
110 * @h_tile_instance: Controller instance used per tile. Number of elements is
111 * based on num_of_h_tiles
112 * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
113 * used instead of panel TE in cmd mode panels
115 struct msm_display_info {
117 uint32_t capabilities;
118 uint32_t num_of_h_tiles;
119 uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
120 bool is_te_using_watchdog_timer;
123 /* Commit/Event thread specific structure */
124 struct msm_drm_thread {
125 struct drm_device *dev;
126 unsigned int crtc_id;
127 struct kthread_worker *worker;
130 struct msm_drm_private {
132 struct drm_device *dev;
136 /* subordinate devices, if present: */
137 struct platform_device *gpu_pdev;
139 /* top level MDSS wrapper device (for MDP5/DPU only) */
140 struct msm_mdss *mdss;
142 /* possibly this should be in the kms component, but it is
143 * shared by both mdp4 and mdp5..
147 /* eDP is for mdp5 only, but kms has not been created
148 * when edp_bind() and edp_init() are called. Here is the only
149 * place to keep the edp instance.
153 /* DSI is shared by mdp4 and mdp5 */
154 struct msm_dsi *dsi[2];
158 /* when we have more than one 'msm_gpu' these need to be an array: */
160 struct msm_file_private *lastctx;
161 /* gpu is only set on open(), but we need this info earlier */
163 bool has_cached_coherent;
165 struct drm_fb_helper *fbdev;
167 struct msm_rd_state *rd; /* debugfs to dump all submits */
168 struct msm_rd_state *hangrd; /* debugfs to dump hanging submits */
169 struct msm_perf_state *perf;
172 * List of all GEM objects (mainly for debugfs, protected by obj_lock
173 * (acquire before per GEM object lock)
175 struct list_head objects;
176 struct mutex obj_lock;
179 * LRUs of inactive GEM objects. Every bo is either in one of the
180 * inactive lists (depending on whether or not it is shrinkable) or
181 * gpu->active_list (for the gpu it is active on[1]), or transiently
182 * on a temporary list as the shrinker is running.
184 * Note that inactive_willneed also contains pinned and vmap'd bos,
185 * but the number of pinned-but-not-active objects is small (scanout
186 * buffers, ringbuffer, etc).
188 * These lists are protected by mm_lock (which should be acquired
189 * before per GEM object lock). One should *not* hold mm_lock in
190 * get_pages()/vmap()/etc paths, as they can trigger the shrinker.
192 * [1] if someone ever added support for the old 2d cores, there could be
193 * more than one gpu object
195 struct list_head inactive_willneed; /* inactive + potentially unpin/evictable */
196 struct list_head inactive_dontneed; /* inactive + shrinkable */
197 struct list_head inactive_unpinned; /* inactive + purged or unpinned */
198 long shrinkable_count; /* write access under mm_lock */
199 long evictable_count; /* write access under mm_lock */
200 struct mutex mm_lock;
202 struct workqueue_struct *wq;
204 unsigned int num_planes;
205 struct drm_plane *planes[MAX_PLANES];
207 unsigned int num_crtcs;
208 struct drm_crtc *crtcs[MAX_CRTCS];
210 struct msm_drm_thread event_thread[MAX_CRTCS];
212 unsigned int num_encoders;
213 struct drm_encoder *encoders[MAX_ENCODERS];
215 unsigned int num_bridges;
216 struct drm_bridge *bridges[MAX_BRIDGES];
218 unsigned int num_connectors;
219 struct drm_connector *connectors[MAX_CONNECTORS];
222 struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
224 /* VRAM carveout, used when no IOMMU: */
228 /* NOTE: mm managed at the page level, size is in # of pages
229 * and position mm_node->start is in # of pages:
232 spinlock_t lock; /* Protects drm_mm node allocation/removal */
235 struct notifier_block vmap_notifier;
236 struct shrinker shrinker;
238 struct drm_atomic_state *pm_state;
240 /* For hang detection, in ms */
241 unsigned int hangcheck_period;
245 uint32_t pixel_format;
248 struct msm_pending_timer;
250 int msm_atomic_prepare_fb(struct drm_plane *plane,
251 struct drm_plane_state *new_state);
252 int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
253 struct msm_kms *kms, int crtc_idx);
254 void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer);
255 void msm_atomic_commit_tail(struct drm_atomic_state *state);
256 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);
257 void msm_atomic_state_clear(struct drm_atomic_state *state);
258 void msm_atomic_state_free(struct drm_atomic_state *state);
260 int msm_crtc_enable_vblank(struct drm_crtc *crtc);
261 void msm_crtc_disable_vblank(struct drm_crtc *crtc);
263 int msm_gem_init_vma(struct msm_gem_address_space *aspace,
264 struct msm_gem_vma *vma, int npages,
265 u64 range_start, u64 range_end);
266 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
267 struct msm_gem_vma *vma);
268 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
269 struct msm_gem_vma *vma);
270 int msm_gem_map_vma(struct msm_gem_address_space *aspace,
271 struct msm_gem_vma *vma, int prot,
272 struct sg_table *sgt, int npages);
273 void msm_gem_close_vma(struct msm_gem_address_space *aspace,
274 struct msm_gem_vma *vma);
277 struct msm_gem_address_space *
278 msm_gem_address_space_get(struct msm_gem_address_space *aspace);
280 void msm_gem_address_space_put(struct msm_gem_address_space *aspace);
282 struct msm_gem_address_space *
283 msm_gem_address_space_create(struct msm_mmu *mmu, const char *name,
284 u64 va_start, u64 size);
286 int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
287 void msm_unregister_mmu(struct drm_device *dev, struct msm_mmu *mmu);
289 bool msm_use_mmu(struct drm_device *dev);
291 int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
292 struct drm_file *file);
294 #ifdef CONFIG_DEBUG_FS
295 unsigned long msm_gem_shrinker_shrink(struct drm_device *dev, unsigned long nr_to_scan);
298 void msm_gem_shrinker_init(struct drm_device *dev);
299 void msm_gem_shrinker_cleanup(struct drm_device *dev);
301 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
302 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
303 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
304 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
305 struct dma_buf_attachment *attach, struct sg_table *sg);
306 int msm_gem_prime_pin(struct drm_gem_object *obj);
307 void msm_gem_prime_unpin(struct drm_gem_object *obj);
309 int msm_framebuffer_prepare(struct drm_framebuffer *fb,
310 struct msm_gem_address_space *aspace);
311 void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
312 struct msm_gem_address_space *aspace);
313 uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
314 struct msm_gem_address_space *aspace, int plane);
315 struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
316 const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
317 struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
318 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
319 struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
320 int w, int h, int p, uint32_t format);
322 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
323 void msm_fbdev_free(struct drm_device *dev);
326 int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
327 struct drm_encoder *encoder);
328 void __init msm_hdmi_register(void);
329 void __exit msm_hdmi_unregister(void);
332 void __init msm_edp_register(void);
333 void __exit msm_edp_unregister(void);
334 int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
335 struct drm_encoder *encoder);
338 #ifdef CONFIG_DRM_MSM_DSI
339 void __init msm_dsi_register(void);
340 void __exit msm_dsi_unregister(void);
341 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
342 struct drm_encoder *encoder);
343 void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
344 bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
345 bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
346 bool msm_dsi_is_master_dsi(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)
377 #ifdef CONFIG_DRM_MSM_DP
378 int __init msm_dp_register(void);
379 void __exit msm_dp_unregister(void);
380 int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
381 struct drm_encoder *encoder);
382 int msm_dp_display_enable(struct msm_dp *dp, struct drm_encoder *encoder);
383 int msm_dp_display_disable(struct msm_dp *dp, struct drm_encoder *encoder);
384 int msm_dp_display_pre_disable(struct msm_dp *dp, struct drm_encoder *encoder);
385 void msm_dp_display_mode_set(struct msm_dp *dp, struct drm_encoder *encoder,
386 struct drm_display_mode *mode,
387 struct drm_display_mode *adjusted_mode);
388 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
389 void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
391 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
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)
407 static inline int msm_dp_display_enable(struct msm_dp *dp,
408 struct drm_encoder *encoder)
412 static inline int msm_dp_display_disable(struct msm_dp *dp,
413 struct drm_encoder *encoder)
417 static inline int msm_dp_display_pre_disable(struct msm_dp *dp,
418 struct drm_encoder *encoder)
422 static inline void msm_dp_display_mode_set(struct msm_dp *dp,
423 struct drm_encoder *encoder,
424 struct drm_display_mode *mode,
425 struct drm_display_mode *adjusted_mode)
429 static inline void msm_dp_irq_postinstall(struct msm_dp *dp_display)
433 static inline void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display)
437 static inline void msm_dp_debugfs_init(struct msm_dp *dp_display,
438 struct drm_minor *minor)
444 void __init msm_mdp_register(void);
445 void __exit msm_mdp_unregister(void);
446 void __init msm_dpu_register(void);
447 void __exit msm_dpu_unregister(void);
449 #ifdef CONFIG_DEBUG_FS
450 void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
451 int msm_debugfs_late_init(struct drm_device *dev);
452 int msm_rd_debugfs_init(struct drm_minor *minor);
453 void msm_rd_debugfs_cleanup(struct msm_drm_private *priv);
455 void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
456 const char *fmt, ...);
457 int msm_perf_debugfs_init(struct drm_minor *minor);
458 void msm_perf_debugfs_cleanup(struct msm_drm_private *priv);
460 static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
462 static inline void msm_rd_dump_submit(struct msm_rd_state *rd,
463 struct msm_gem_submit *submit,
464 const char *fmt, ...) {}
465 static inline void msm_rd_debugfs_cleanup(struct msm_drm_private *priv) {}
466 static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
469 struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
471 struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
473 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
474 const char *dbgname);
475 void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
476 const char *dbgname, phys_addr_t *size);
477 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
478 const char *dbgname);
479 void msm_writel(u32 data, void __iomem *addr);
480 u32 msm_readl(const void __iomem *addr);
481 void msm_rmw(void __iomem *addr, u32 mask, u32 or);
483 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
484 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
486 static inline int align_pitch(int width, int bpp)
488 int bytespp = (bpp + 7) / 8;
489 /* adreno needs pitch aligned to 32 pixels: */
490 return bytespp * ALIGN(width, 32);
493 /* for the generated headers: */
494 #define INVALID_IDX(idx) ({BUG(); 0;})
495 #define fui(x) ({BUG(); 0;})
496 #define _mesa_float_to_half(x) ({BUG(); 0;})
499 #define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
501 /* for conditionally setting boolean flag(s): */
502 #define COND(bool, val) ((bool) ? (val) : 0)
504 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
506 ktime_t now = ktime_get();
507 s64 remaining_jiffies;
509 if (ktime_compare(*timeout, now) < 0) {
510 remaining_jiffies = 0;
512 ktime_t rem = ktime_sub(*timeout, now);
513 remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
516 return clamp(remaining_jiffies, 0LL, (s64)INT_MAX);
519 #endif /* __MSM_DRV_H__ */