1 /* 2 * drivers/gpu/drm/omapdrm/omap_drv.h 3 * 4 * Copyright (C) 2011 Texas Instruments 5 * Author: Rob Clark <rob@ti.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 as published by 9 * the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef __OMAP_DRV_H__ 21 #define __OMAP_DRV_H__ 22 23 #include <linux/module.h> 24 #include <linux/platform_data/omap_drm.h> 25 #include <linux/types.h> 26 #include <linux/wait.h> 27 #include <video/omapdss.h> 28 29 #include <drm/drmP.h> 30 #include <drm/drm_crtc_helper.h> 31 #include <drm/drm_gem.h> 32 #include <drm/omap_drm.h> 33 34 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) 35 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */ 36 37 #define MODULE_NAME "omapdrm" 38 39 struct omap_drm_usergart; 40 41 /* parameters which describe (unrotated) coordinates of scanout within a fb: */ 42 struct omap_drm_window { 43 uint32_t rotation; 44 int32_t crtc_x, crtc_y; /* signed because can be offscreen */ 45 uint32_t crtc_w, crtc_h; 46 uint32_t src_x, src_y; 47 uint32_t src_w, src_h; 48 }; 49 50 /* For transiently registering for different DSS irqs that various parts 51 * of the KMS code need during setup/configuration. We these are not 52 * necessarily the same as what drm_vblank_get/put() are requesting, and 53 * the hysteresis in drm_vblank_put() is not necessarily desirable for 54 * internal housekeeping related irq usage. 55 */ 56 struct omap_drm_irq { 57 struct list_head node; 58 uint32_t irqmask; 59 bool registered; 60 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); 61 }; 62 63 /* For KMS code that needs to wait for a certain # of IRQs: 64 */ 65 struct omap_irq_wait; 66 struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, 67 uint32_t irqmask, int count); 68 int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, 69 unsigned long timeout); 70 71 struct omap_drm_private { 72 uint32_t omaprev; 73 74 unsigned int num_crtcs; 75 struct drm_crtc *crtcs[8]; 76 77 unsigned int num_planes; 78 struct drm_plane *planes[8]; 79 80 unsigned int num_encoders; 81 struct drm_encoder *encoders[8]; 82 83 unsigned int num_connectors; 84 struct drm_connector *connectors[8]; 85 86 struct drm_fb_helper *fbdev; 87 88 struct workqueue_struct *wq; 89 90 /* lock for obj_list below */ 91 spinlock_t list_lock; 92 93 /* list of GEM objects: */ 94 struct list_head obj_list; 95 96 struct omap_drm_usergart *usergart; 97 bool has_dmm; 98 99 /* properties: */ 100 struct drm_property *zorder_prop; 101 102 /* irq handling: */ 103 struct list_head irq_list; /* list of omap_drm_irq */ 104 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 105 struct omap_drm_irq error_handler; 106 107 /* atomic commit */ 108 struct { 109 struct list_head events; 110 wait_queue_head_t wait; 111 u32 pending; 112 spinlock_t lock; /* Protects commit.pending */ 113 } commit; 114 }; 115 116 117 #ifdef CONFIG_DEBUG_FS 118 int omap_debugfs_init(struct drm_minor *minor); 119 void omap_debugfs_cleanup(struct drm_minor *minor); 120 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 121 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 122 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 123 #endif 124 125 #ifdef CONFIG_PM 126 int omap_gem_resume(struct device *dev); 127 #endif 128 129 int omap_irq_enable_vblank(struct drm_device *dev, unsigned int pipe); 130 void omap_irq_disable_vblank(struct drm_device *dev, unsigned int pipe); 131 void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 132 void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 133 void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 134 void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 135 void omap_drm_irq_uninstall(struct drm_device *dev); 136 int omap_drm_irq_install(struct drm_device *dev); 137 138 #ifdef CONFIG_DRM_FBDEV_EMULATION 139 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); 140 void omap_fbdev_free(struct drm_device *dev); 141 #else 142 static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev) 143 { 144 return NULL; 145 } 146 static inline void omap_fbdev_free(struct drm_device *dev) 147 { 148 } 149 #endif 150 151 struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc); 152 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); 153 void omap_crtc_pre_init(void); 154 void omap_crtc_pre_uninit(void); 155 struct drm_crtc *omap_crtc_init(struct drm_device *dev, 156 struct drm_plane *plane, enum omap_channel channel, int id); 157 int omap_crtc_wait_pending(struct drm_crtc *crtc); 158 159 struct drm_plane *omap_plane_init(struct drm_device *dev, 160 int id, enum drm_plane_type type); 161 void omap_plane_install_properties(struct drm_plane *plane, 162 struct drm_mode_object *obj); 163 164 struct drm_encoder *omap_encoder_init(struct drm_device *dev, 165 struct omap_dss_device *dssdev); 166 167 struct drm_connector *omap_connector_init(struct drm_device *dev, 168 int connector_type, struct omap_dss_device *dssdev, 169 struct drm_encoder *encoder); 170 struct drm_encoder *omap_connector_attached_encoder( 171 struct drm_connector *connector); 172 bool omap_connector_get_hdmi_mode(struct drm_connector *connector); 173 174 void copy_timings_omap_to_drm(struct drm_display_mode *mode, 175 struct omap_video_timings *timings); 176 void copy_timings_drm_to_omap(struct omap_video_timings *timings, 177 struct drm_display_mode *mode); 178 179 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, 180 uint32_t max_formats, enum omap_color_mode supported_modes); 181 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, 182 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd); 183 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, 184 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); 185 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p); 186 int omap_framebuffer_pin(struct drm_framebuffer *fb); 187 void omap_framebuffer_unpin(struct drm_framebuffer *fb); 188 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, 189 struct omap_drm_window *win, struct omap_overlay_info *info); 190 struct drm_connector *omap_framebuffer_get_next_connector( 191 struct drm_framebuffer *fb, struct drm_connector *from); 192 193 void omap_gem_init(struct drm_device *dev); 194 void omap_gem_deinit(struct drm_device *dev); 195 196 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 197 union omap_gem_size gsize, uint32_t flags); 198 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 199 union omap_gem_size gsize, uint32_t flags, uint32_t *handle); 200 void omap_gem_free_object(struct drm_gem_object *obj); 201 void *omap_gem_vaddr(struct drm_gem_object *obj); 202 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 203 uint32_t handle, uint64_t *offset); 204 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 205 struct drm_mode_create_dumb *args); 206 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 207 int omap_gem_mmap_obj(struct drm_gem_object *obj, 208 struct vm_area_struct *vma); 209 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 210 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op); 211 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op); 212 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op); 213 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op, 214 void (*fxn)(void *arg), void *arg); 215 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); 216 void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff); 217 void omap_gem_dma_sync(struct drm_gem_object *obj, 218 enum dma_data_direction dir); 219 int omap_gem_get_paddr(struct drm_gem_object *obj, 220 dma_addr_t *paddr, bool remap); 221 void omap_gem_put_paddr(struct drm_gem_object *obj); 222 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 223 bool remap); 224 int omap_gem_put_pages(struct drm_gem_object *obj); 225 uint32_t omap_gem_flags(struct drm_gem_object *obj); 226 int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient, 227 int x, int y, dma_addr_t *paddr); 228 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); 229 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 230 int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h); 231 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); 232 233 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 234 struct drm_gem_object *obj, int flags); 235 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 236 struct dma_buf *buffer); 237 238 static inline int align_pitch(int pitch, int width, int bpp) 239 { 240 int bytespp = (bpp + 7) / 8; 241 /* in case someone tries to feed us a completely bogus stride: */ 242 pitch = max(pitch, width * bytespp); 243 /* PVR needs alignment to 8 pixels.. right now that is the most 244 * restrictive stride requirement.. 245 */ 246 return roundup(pitch, 8 * bytespp); 247 } 248 249 /* map crtc to vblank mask */ 250 uint32_t pipe2vbl(struct drm_crtc *crtc); 251 struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder); 252 253 /* should these be made into common util helpers? 254 */ 255 256 static inline int objects_lookup(struct drm_device *dev, 257 struct drm_file *filp, uint32_t pixel_format, 258 struct drm_gem_object **bos, const uint32_t *handles) 259 { 260 int i, n = drm_format_num_planes(pixel_format); 261 262 for (i = 0; i < n; i++) { 263 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]); 264 if (!bos[i]) 265 goto fail; 266 267 } 268 269 return 0; 270 271 fail: 272 while (--i > 0) 273 drm_gem_object_unreference_unlocked(bos[i]); 274 275 return -ENOENT; 276 } 277 278 #endif /* __OMAP_DRV_H__ */ 279