1c8b75bcaSEric Anholt /* 2c8b75bcaSEric Anholt * Copyright (C) 2015 Broadcom 3c8b75bcaSEric Anholt * 4c8b75bcaSEric Anholt * This program is free software; you can redistribute it and/or modify 5c8b75bcaSEric Anholt * it under the terms of the GNU General Public License version 2 as 6c8b75bcaSEric Anholt * published by the Free Software Foundation. 7c8b75bcaSEric Anholt */ 8c8b75bcaSEric Anholt 9c8b75bcaSEric Anholt #include "drmP.h" 10c8b75bcaSEric Anholt #include "drm_gem_cma_helper.h" 11c8b75bcaSEric Anholt 12c8b75bcaSEric Anholt struct vc4_dev { 13c8b75bcaSEric Anholt struct drm_device *dev; 14c8b75bcaSEric Anholt 15c8b75bcaSEric Anholt struct vc4_hdmi *hdmi; 16c8b75bcaSEric Anholt struct vc4_hvs *hvs; 17c8b75bcaSEric Anholt struct vc4_crtc *crtc[3]; 1848666d56SDerek Foreman 1948666d56SDerek Foreman struct drm_fbdev_cma *fbdev; 20c826a6e1SEric Anholt 21c826a6e1SEric Anholt /* The kernel-space BO cache. Tracks buffers that have been 22c826a6e1SEric Anholt * unreferenced by all other users (refcounts of 0!) but not 23c826a6e1SEric Anholt * yet freed, so we can do cheap allocations. 24c826a6e1SEric Anholt */ 25c826a6e1SEric Anholt struct vc4_bo_cache { 26c826a6e1SEric Anholt /* Array of list heads for entries in the BO cache, 27c826a6e1SEric Anholt * based on number of pages, so we can do O(1) lookups 28c826a6e1SEric Anholt * in the cache when allocating. 29c826a6e1SEric Anholt */ 30c826a6e1SEric Anholt struct list_head *size_list; 31c826a6e1SEric Anholt uint32_t size_list_size; 32c826a6e1SEric Anholt 33c826a6e1SEric Anholt /* List of all BOs in the cache, ordered by age, so we 34c826a6e1SEric Anholt * can do O(1) lookups when trying to free old 35c826a6e1SEric Anholt * buffers. 36c826a6e1SEric Anholt */ 37c826a6e1SEric Anholt struct list_head time_list; 38c826a6e1SEric Anholt struct work_struct time_work; 39c826a6e1SEric Anholt struct timer_list time_timer; 40c826a6e1SEric Anholt } bo_cache; 41c826a6e1SEric Anholt 42c826a6e1SEric Anholt struct vc4_bo_stats { 43c826a6e1SEric Anholt u32 num_allocated; 44c826a6e1SEric Anholt u32 size_allocated; 45c826a6e1SEric Anholt u32 num_cached; 46c826a6e1SEric Anholt u32 size_cached; 47c826a6e1SEric Anholt } bo_stats; 48c826a6e1SEric Anholt 49c826a6e1SEric Anholt /* Protects bo_cache and the BO stats. */ 50c826a6e1SEric Anholt struct mutex bo_lock; 51c8b75bcaSEric Anholt }; 52c8b75bcaSEric Anholt 53c8b75bcaSEric Anholt static inline struct vc4_dev * 54c8b75bcaSEric Anholt to_vc4_dev(struct drm_device *dev) 55c8b75bcaSEric Anholt { 56c8b75bcaSEric Anholt return (struct vc4_dev *)dev->dev_private; 57c8b75bcaSEric Anholt } 58c8b75bcaSEric Anholt 59c8b75bcaSEric Anholt struct vc4_bo { 60c8b75bcaSEric Anholt struct drm_gem_cma_object base; 61c826a6e1SEric Anholt 62c826a6e1SEric Anholt /* List entry for the BO's position in either 63c826a6e1SEric Anholt * vc4_exec_info->unref_list or vc4_dev->bo_cache.time_list 64c826a6e1SEric Anholt */ 65c826a6e1SEric Anholt struct list_head unref_head; 66c826a6e1SEric Anholt 67c826a6e1SEric Anholt /* Time in jiffies when the BO was put in vc4->bo_cache. */ 68c826a6e1SEric Anholt unsigned long free_time; 69c826a6e1SEric Anholt 70c826a6e1SEric Anholt /* List entry for the BO's position in vc4_dev->bo_cache.size_list */ 71c826a6e1SEric Anholt struct list_head size_head; 72c8b75bcaSEric Anholt }; 73c8b75bcaSEric Anholt 74c8b75bcaSEric Anholt static inline struct vc4_bo * 75c8b75bcaSEric Anholt to_vc4_bo(struct drm_gem_object *bo) 76c8b75bcaSEric Anholt { 77c8b75bcaSEric Anholt return (struct vc4_bo *)bo; 78c8b75bcaSEric Anholt } 79c8b75bcaSEric Anholt 80c8b75bcaSEric Anholt struct vc4_hvs { 81c8b75bcaSEric Anholt struct platform_device *pdev; 82c8b75bcaSEric Anholt void __iomem *regs; 83c8b75bcaSEric Anholt void __iomem *dlist; 84c8b75bcaSEric Anholt }; 85c8b75bcaSEric Anholt 86c8b75bcaSEric Anholt struct vc4_plane { 87c8b75bcaSEric Anholt struct drm_plane base; 88c8b75bcaSEric Anholt }; 89c8b75bcaSEric Anholt 90c8b75bcaSEric Anholt static inline struct vc4_plane * 91c8b75bcaSEric Anholt to_vc4_plane(struct drm_plane *plane) 92c8b75bcaSEric Anholt { 93c8b75bcaSEric Anholt return (struct vc4_plane *)plane; 94c8b75bcaSEric Anholt } 95c8b75bcaSEric Anholt 96c8b75bcaSEric Anholt enum vc4_encoder_type { 97c8b75bcaSEric Anholt VC4_ENCODER_TYPE_HDMI, 98c8b75bcaSEric Anholt VC4_ENCODER_TYPE_VEC, 99c8b75bcaSEric Anholt VC4_ENCODER_TYPE_DSI0, 100c8b75bcaSEric Anholt VC4_ENCODER_TYPE_DSI1, 101c8b75bcaSEric Anholt VC4_ENCODER_TYPE_SMI, 102c8b75bcaSEric Anholt VC4_ENCODER_TYPE_DPI, 103c8b75bcaSEric Anholt }; 104c8b75bcaSEric Anholt 105c8b75bcaSEric Anholt struct vc4_encoder { 106c8b75bcaSEric Anholt struct drm_encoder base; 107c8b75bcaSEric Anholt enum vc4_encoder_type type; 108c8b75bcaSEric Anholt u32 clock_select; 109c8b75bcaSEric Anholt }; 110c8b75bcaSEric Anholt 111c8b75bcaSEric Anholt static inline struct vc4_encoder * 112c8b75bcaSEric Anholt to_vc4_encoder(struct drm_encoder *encoder) 113c8b75bcaSEric Anholt { 114c8b75bcaSEric Anholt return container_of(encoder, struct vc4_encoder, base); 115c8b75bcaSEric Anholt } 116c8b75bcaSEric Anholt 117c8b75bcaSEric Anholt #define HVS_READ(offset) readl(vc4->hvs->regs + offset) 118c8b75bcaSEric Anholt #define HVS_WRITE(offset, val) writel(val, vc4->hvs->regs + offset) 119c8b75bcaSEric Anholt 120c8b75bcaSEric Anholt /** 121c8b75bcaSEric Anholt * _wait_for - magic (register) wait macro 122c8b75bcaSEric Anholt * 123c8b75bcaSEric Anholt * Does the right thing for modeset paths when run under kdgb or similar atomic 124c8b75bcaSEric Anholt * contexts. Note that it's important that we check the condition again after 125c8b75bcaSEric Anholt * having timed out, since the timeout could be due to preemption or similar and 126c8b75bcaSEric Anholt * we've never had a chance to check the condition before the timeout. 127c8b75bcaSEric Anholt */ 128c8b75bcaSEric Anholt #define _wait_for(COND, MS, W) ({ \ 129c8b75bcaSEric Anholt unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1; \ 130c8b75bcaSEric Anholt int ret__ = 0; \ 131c8b75bcaSEric Anholt while (!(COND)) { \ 132c8b75bcaSEric Anholt if (time_after(jiffies, timeout__)) { \ 133c8b75bcaSEric Anholt if (!(COND)) \ 134c8b75bcaSEric Anholt ret__ = -ETIMEDOUT; \ 135c8b75bcaSEric Anholt break; \ 136c8b75bcaSEric Anholt } \ 137c8b75bcaSEric Anholt if (W && drm_can_sleep()) { \ 138c8b75bcaSEric Anholt msleep(W); \ 139c8b75bcaSEric Anholt } else { \ 140c8b75bcaSEric Anholt cpu_relax(); \ 141c8b75bcaSEric Anholt } \ 142c8b75bcaSEric Anholt } \ 143c8b75bcaSEric Anholt ret__; \ 144c8b75bcaSEric Anholt }) 145c8b75bcaSEric Anholt 146c8b75bcaSEric Anholt #define wait_for(COND, MS) _wait_for(COND, MS, 1) 147c8b75bcaSEric Anholt 148c8b75bcaSEric Anholt /* vc4_bo.c */ 149c826a6e1SEric Anholt struct drm_gem_object *vc4_create_object(struct drm_device *dev, size_t size); 150c8b75bcaSEric Anholt void vc4_free_object(struct drm_gem_object *gem_obj); 151c826a6e1SEric Anholt struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t size, 152c826a6e1SEric Anholt bool from_cache); 153c8b75bcaSEric Anholt int vc4_dumb_create(struct drm_file *file_priv, 154c8b75bcaSEric Anholt struct drm_device *dev, 155c8b75bcaSEric Anholt struct drm_mode_create_dumb *args); 156c8b75bcaSEric Anholt struct dma_buf *vc4_prime_export(struct drm_device *dev, 157c8b75bcaSEric Anholt struct drm_gem_object *obj, int flags); 158d5bc60f6SEric Anholt int vc4_create_bo_ioctl(struct drm_device *dev, void *data, 159d5bc60f6SEric Anholt struct drm_file *file_priv); 160d5bc60f6SEric Anholt int vc4_mmap_bo_ioctl(struct drm_device *dev, void *data, 161d5bc60f6SEric Anholt struct drm_file *file_priv); 162c826a6e1SEric Anholt void vc4_bo_cache_init(struct drm_device *dev); 163c826a6e1SEric Anholt void vc4_bo_cache_destroy(struct drm_device *dev); 164c826a6e1SEric Anholt int vc4_bo_stats_debugfs(struct seq_file *m, void *arg); 165c8b75bcaSEric Anholt 166c8b75bcaSEric Anholt /* vc4_crtc.c */ 167c8b75bcaSEric Anholt extern struct platform_driver vc4_crtc_driver; 1681f43710aSDave Airlie int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id); 1691f43710aSDave Airlie void vc4_disable_vblank(struct drm_device *dev, unsigned int crtc_id); 170c8b75bcaSEric Anholt void vc4_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); 171c8b75bcaSEric Anholt int vc4_crtc_debugfs_regs(struct seq_file *m, void *arg); 172c8b75bcaSEric Anholt 173c8b75bcaSEric Anholt /* vc4_debugfs.c */ 174c8b75bcaSEric Anholt int vc4_debugfs_init(struct drm_minor *minor); 175c8b75bcaSEric Anholt void vc4_debugfs_cleanup(struct drm_minor *minor); 176c8b75bcaSEric Anholt 177c8b75bcaSEric Anholt /* vc4_drv.c */ 178c8b75bcaSEric Anholt void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index); 179c8b75bcaSEric Anholt 180c8b75bcaSEric Anholt /* vc4_hdmi.c */ 181c8b75bcaSEric Anholt extern struct platform_driver vc4_hdmi_driver; 182c8b75bcaSEric Anholt int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused); 183c8b75bcaSEric Anholt 184c8b75bcaSEric Anholt /* vc4_hvs.c */ 185c8b75bcaSEric Anholt extern struct platform_driver vc4_hvs_driver; 186c8b75bcaSEric Anholt void vc4_hvs_dump_state(struct drm_device *dev); 187c8b75bcaSEric Anholt int vc4_hvs_debugfs_regs(struct seq_file *m, void *unused); 188c8b75bcaSEric Anholt 189c8b75bcaSEric Anholt /* vc4_kms.c */ 190c8b75bcaSEric Anholt int vc4_kms_load(struct drm_device *dev); 191c8b75bcaSEric Anholt 192c8b75bcaSEric Anholt /* vc4_plane.c */ 193c8b75bcaSEric Anholt struct drm_plane *vc4_plane_init(struct drm_device *dev, 194c8b75bcaSEric Anholt enum drm_plane_type type); 195c8b75bcaSEric Anholt u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist); 196c8b75bcaSEric Anholt u32 vc4_plane_dlist_size(struct drm_plane_state *state); 197