drivers/gpu/drm/omapdrm/omap_drv.h

   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__ */