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 /* max # of mapper-id's that can be assigned.. todo, come up with a better 40 * (but still inexpensive) way to store/access per-buffer mapper private 41 * data.. 42 */ 43 #define MAX_MAPPERS 2 44 45 /* parameters which describe (unrotated) coordinates of scanout within a fb: */ 46 struct omap_drm_window { 47 uint32_t rotation; 48 int32_t crtc_x, crtc_y; /* signed because can be offscreen */ 49 uint32_t crtc_w, crtc_h; 50 uint32_t src_x, src_y; 51 uint32_t src_w, src_h; 52 }; 53 54 /* For transiently registering for different DSS irqs that various parts 55 * of the KMS code need during setup/configuration. We these are not 56 * necessarily the same as what drm_vblank_get/put() are requesting, and 57 * the hysteresis in drm_vblank_put() is not necessarily desirable for 58 * internal housekeeping related irq usage. 59 */ 60 struct omap_drm_irq { 61 struct list_head node; 62 uint32_t irqmask; 63 bool registered; 64 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); 65 }; 66 67 /* For KMS code that needs to wait for a certain # of IRQs: 68 */ 69 struct omap_irq_wait; 70 struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, 71 uint32_t irqmask, int count); 72 int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, 73 unsigned long timeout); 74 75 struct omap_drm_private { 76 uint32_t omaprev; 77 78 unsigned int num_crtcs; 79 struct drm_crtc *crtcs[8]; 80 81 unsigned int num_planes; 82 struct drm_plane *planes[8]; 83 84 unsigned int num_encoders; 85 struct drm_encoder *encoders[8]; 86 87 unsigned int num_connectors; 88 struct drm_connector *connectors[8]; 89 90 struct drm_fb_helper *fbdev; 91 92 struct workqueue_struct *wq; 93 94 /* lock for obj_list below */ 95 spinlock_t list_lock; 96 97 /* list of GEM objects: */ 98 struct list_head obj_list; 99 100 bool has_dmm; 101 102 /* properties: */ 103 struct drm_property *zorder_prop; 104 105 /* irq handling: */ 106 struct list_head irq_list; /* list of omap_drm_irq */ 107 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 108 struct omap_drm_irq error_handler; 109 110 /* atomic commit */ 111 struct { 112 struct list_head events; 113 wait_queue_head_t wait; 114 u32 pending; 115 spinlock_t lock; /* Protects commit.pending */ 116 } commit; 117 }; 118 119 120 #ifdef CONFIG_DEBUG_FS 121 int omap_debugfs_init(struct drm_minor *minor); 122 void omap_debugfs_cleanup(struct drm_minor *minor); 123 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 124 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 125 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 126 #endif 127 128 #ifdef CONFIG_PM 129 int omap_gem_resume(struct device *dev); 130 #endif 131 132 int omap_irq_enable_vblank(struct drm_device *dev, int crtc_id); 133 void omap_irq_disable_vblank(struct drm_device *dev, int crtc_id); 134 void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 135 void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 136 void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 137 void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 138 void omap_drm_irq_uninstall(struct drm_device *dev); 139 int omap_drm_irq_install(struct drm_device *dev); 140 141 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); 142 void omap_fbdev_free(struct drm_device *dev); 143 144 struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc); 145 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); 146 void omap_crtc_pre_init(void); 147 void omap_crtc_pre_uninit(void); 148 struct drm_crtc *omap_crtc_init(struct drm_device *dev, 149 struct drm_plane *plane, enum omap_channel channel, int id); 150 int omap_crtc_wait_pending(struct drm_crtc *crtc); 151 152 struct drm_plane *omap_plane_init(struct drm_device *dev, 153 int id, enum drm_plane_type type); 154 void omap_plane_install_properties(struct drm_plane *plane, 155 struct drm_mode_object *obj); 156 157 struct drm_encoder *omap_encoder_init(struct drm_device *dev, 158 struct omap_dss_device *dssdev); 159 160 struct drm_connector *omap_connector_init(struct drm_device *dev, 161 int connector_type, struct omap_dss_device *dssdev, 162 struct drm_encoder *encoder); 163 struct drm_encoder *omap_connector_attached_encoder( 164 struct drm_connector *connector); 165 bool omap_connector_get_hdmi_mode(struct drm_connector *connector); 166 167 void copy_timings_omap_to_drm(struct drm_display_mode *mode, 168 struct omap_video_timings *timings); 169 void copy_timings_drm_to_omap(struct omap_video_timings *timings, 170 struct drm_display_mode *mode); 171 172 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, 173 uint32_t max_formats, enum omap_color_mode supported_modes); 174 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, 175 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd); 176 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, 177 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); 178 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p); 179 int omap_framebuffer_pin(struct drm_framebuffer *fb); 180 void omap_framebuffer_unpin(struct drm_framebuffer *fb); 181 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, 182 struct omap_drm_window *win, struct omap_overlay_info *info); 183 struct drm_connector *omap_framebuffer_get_next_connector( 184 struct drm_framebuffer *fb, struct drm_connector *from); 185 186 void omap_gem_init(struct drm_device *dev); 187 void omap_gem_deinit(struct drm_device *dev); 188 189 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 190 union omap_gem_size gsize, uint32_t flags); 191 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 192 union omap_gem_size gsize, uint32_t flags, uint32_t *handle); 193 void omap_gem_free_object(struct drm_gem_object *obj); 194 void *omap_gem_vaddr(struct drm_gem_object *obj); 195 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 196 uint32_t handle, uint64_t *offset); 197 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 198 struct drm_mode_create_dumb *args); 199 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 200 int omap_gem_mmap_obj(struct drm_gem_object *obj, 201 struct vm_area_struct *vma); 202 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 203 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op); 204 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op); 205 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op); 206 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op, 207 void (*fxn)(void *arg), void *arg); 208 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); 209 void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff); 210 void omap_gem_dma_sync(struct drm_gem_object *obj, 211 enum dma_data_direction dir); 212 int omap_gem_get_paddr(struct drm_gem_object *obj, 213 dma_addr_t *paddr, bool remap); 214 void omap_gem_put_paddr(struct drm_gem_object *obj); 215 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 216 bool remap); 217 int omap_gem_put_pages(struct drm_gem_object *obj); 218 uint32_t omap_gem_flags(struct drm_gem_object *obj); 219 int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient, 220 int x, int y, dma_addr_t *paddr); 221 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); 222 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 223 int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h); 224 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); 225 226 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 227 struct drm_gem_object *obj, int flags); 228 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 229 struct dma_buf *buffer); 230 231 static inline int align_pitch(int pitch, int width, int bpp) 232 { 233 int bytespp = (bpp + 7) / 8; 234 /* in case someone tries to feed us a completely bogus stride: */ 235 pitch = max(pitch, width * bytespp); 236 /* PVR needs alignment to 8 pixels.. right now that is the most 237 * restrictive stride requirement.. 238 */ 239 return roundup(pitch, 8 * bytespp); 240 } 241 242 /* map crtc to vblank mask */ 243 uint32_t pipe2vbl(struct drm_crtc *crtc); 244 struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder); 245 246 /* should these be made into common util helpers? 247 */ 248 249 static inline int objects_lookup(struct drm_device *dev, 250 struct drm_file *filp, uint32_t pixel_format, 251 struct drm_gem_object **bos, uint32_t *handles) 252 { 253 int i, n = drm_format_num_planes(pixel_format); 254 255 for (i = 0; i < n; i++) { 256 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]); 257 if (!bos[i]) 258 goto fail; 259 260 } 261 262 return 0; 263 264 fail: 265 while (--i > 0) 266 drm_gem_object_unreference_unlocked(bos[i]); 267 268 return -ENOENT; 269 } 270 271 #endif /* __OMAP_DRV_H__ */ 272