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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#include "dss/omapdss.h"
35
36#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
37#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */
38
39#define MODULE_NAME "omapdrm"
40
41struct omap_drm_usergart;
42
43/* parameters which describe (unrotated) coordinates of scanout within a fb: */
44struct omap_drm_window {
45 uint32_t rotation;
46 int32_t crtc_x, crtc_y; /* signed because can be offscreen */
47 uint32_t crtc_w, crtc_h;
48 uint32_t src_x, src_y;
49 uint32_t src_w, src_h;
50};
51
52/* For transiently registering for different DSS irqs that various parts
53 * of the KMS code need during setup/configuration. We these are not
54 * necessarily the same as what drm_vblank_get/put() are requesting, and
55 * the hysteresis in drm_vblank_put() is not necessarily desirable for
56 * internal housekeeping related irq usage.
57 */
58struct omap_drm_irq {
59 struct list_head node;
60 uint32_t irqmask;
61 bool registered;
62 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus);
63};
64
65/* For KMS code that needs to wait for a certain # of IRQs:
66 */
67struct omap_irq_wait;
68struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev,
69 uint32_t irqmask, int count);
70int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait,
71 unsigned long timeout);
72
73struct omap_drm_private {
74 uint32_t omaprev;
75
76 unsigned int num_crtcs;
77 struct drm_crtc *crtcs[8];
78
79 unsigned int num_planes;
80 struct drm_plane *planes[8];
81
82 unsigned int num_encoders;
83 struct drm_encoder *encoders[8];
84
85 unsigned int num_connectors;
86 struct drm_connector *connectors[8];
87
88 struct drm_fb_helper *fbdev;
89
90 struct workqueue_struct *wq;
91
92 /* lock for obj_list below */
93 spinlock_t list_lock;
94
95 /* list of GEM objects: */
96 struct list_head obj_list;
97
98 struct omap_drm_usergart *usergart;
99 bool has_dmm;
100
101 /* properties: */
102 struct drm_property *zorder_prop;
103
104 /* irq handling: */
105 struct list_head irq_list; /* list of omap_drm_irq */
106 uint32_t vblank_mask; /* irq bits set for userspace vblank */
107 struct omap_drm_irq error_handler;
108
109 /* atomic commit */
110 struct {
111 wait_queue_head_t wait;
112 u32 pending;
113 spinlock_t lock; /* Protects commit.pending */
114 } commit;
115};
116
117
118#ifdef CONFIG_DEBUG_FS
119int omap_debugfs_init(struct drm_minor *minor);
120void omap_debugfs_cleanup(struct drm_minor *minor);
121void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
122void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
123void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
124#endif
125
126#ifdef CONFIG_PM
127int omap_gem_resume(struct device *dev);
128#endif
129
130int omap_irq_enable_vblank(struct drm_device *dev, unsigned int pipe);
131void omap_irq_disable_vblank(struct drm_device *dev, unsigned int pipe);
132void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
133void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
134void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
135void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
136void omap_drm_irq_uninstall(struct drm_device *dev);
137int omap_drm_irq_install(struct drm_device *dev);
138
139#ifdef CONFIG_DRM_FBDEV_EMULATION
140struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
141void omap_fbdev_free(struct drm_device *dev);
142#else
143static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
144{
145 return NULL;
146}
147static inline void omap_fbdev_free(struct drm_device *dev)
148{
149}
150#endif
151
152struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
153enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
154void omap_crtc_pre_init(void);
155void omap_crtc_pre_uninit(void);
156struct drm_crtc *omap_crtc_init(struct drm_device *dev,
157 struct drm_plane *plane, enum omap_channel channel, int id);
158int omap_crtc_wait_pending(struct drm_crtc *crtc);
159
160struct drm_plane *omap_plane_init(struct drm_device *dev,
161 int id, enum drm_plane_type type);
162void omap_plane_install_properties(struct drm_plane *plane,
163 struct drm_mode_object *obj);
164
165struct drm_encoder *omap_encoder_init(struct drm_device *dev,
166 struct omap_dss_device *dssdev);
167
168struct drm_connector *omap_connector_init(struct drm_device *dev,
169 int connector_type, struct omap_dss_device *dssdev,
170 struct drm_encoder *encoder);
171struct drm_encoder *omap_connector_attached_encoder(
172 struct drm_connector *connector);
173bool omap_connector_get_hdmi_mode(struct drm_connector *connector);
174
175void copy_timings_omap_to_drm(struct drm_display_mode *mode,
176 struct omap_video_timings *timings);
177void copy_timings_drm_to_omap(struct omap_video_timings *timings,
178 struct drm_display_mode *mode);
179
180uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
181 uint32_t max_formats, enum omap_color_mode supported_modes);
182struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
183 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
184struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
185 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
186struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
187int omap_framebuffer_pin(struct drm_framebuffer *fb);
188void omap_framebuffer_unpin(struct drm_framebuffer *fb);
189void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
190 struct omap_drm_window *win, struct omap_overlay_info *info);
191struct drm_connector *omap_framebuffer_get_next_connector(
192 struct drm_framebuffer *fb, struct drm_connector *from);
193bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb);
194
195void omap_gem_init(struct drm_device *dev);
196void omap_gem_deinit(struct drm_device *dev);
197
198struct drm_gem_object *omap_gem_new(struct drm_device *dev,
199 union omap_gem_size gsize, uint32_t flags);
200struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
201 struct sg_table *sgt);
202int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
203 union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
204void omap_gem_free_object(struct drm_gem_object *obj);
205void *omap_gem_vaddr(struct drm_gem_object *obj);
206int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
207 uint32_t handle, uint64_t *offset);
208int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
209 struct drm_mode_create_dumb *args);
210int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
211int omap_gem_mmap_obj(struct drm_gem_object *obj,
212 struct vm_area_struct *vma);
213int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
214int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
215int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
216int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
217int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
218 void (*fxn)(void *arg), void *arg);
219int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
220void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff);
221void omap_gem_dma_sync(struct drm_gem_object *obj,
222 enum dma_data_direction dir);
223int omap_gem_get_paddr(struct drm_gem_object *obj,
224 dma_addr_t *paddr, bool remap);
225void omap_gem_put_paddr(struct drm_gem_object *obj);
226int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
227 bool remap);
228int omap_gem_put_pages(struct drm_gem_object *obj);
229uint32_t omap_gem_flags(struct drm_gem_object *obj);
230int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient,
231 int x, int y, dma_addr_t *paddr);
232uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
233size_t omap_gem_mmap_size(struct drm_gem_object *obj);
234int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h);
235int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient);
236
237struct dma_buf *omap_gem_prime_export(struct drm_device *dev,
238 struct drm_gem_object *obj, int flags);
239struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
240 struct dma_buf *buffer);
241
242static inline int align_pitch(int pitch, int width, int bpp)
243{
244 int bytespp = (bpp + 7) / 8;
245 /* in case someone tries to feed us a completely bogus stride: */
246 pitch = max(pitch, width * bytespp);
247 /* PVR needs alignment to 8 pixels.. right now that is the most
248 * restrictive stride requirement..
249 */
250 return roundup(pitch, 8 * bytespp);
251}
252
253/* map crtc to vblank mask */
254uint32_t pipe2vbl(struct drm_crtc *crtc);
255struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
256
257/* should these be made into common util helpers?
258 */
259
260static inline int objects_lookup(struct drm_device *dev,
261 struct drm_file *filp, uint32_t pixel_format,
262 struct drm_gem_object **bos, const uint32_t *handles)
263{
264 int i, n = drm_format_num_planes(pixel_format);
265
266 for (i = 0; i < n; i++) {
267 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
268 if (!bos[i])
269 goto fail;
270
271 }
272
273 return 0;
274
275fail:
276 while (--i > 0)
277 drm_gem_object_unreference_unlocked(bos[i]);
278
279 return -ENOENT;
280}
281
282#endif /* __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 <video/omapdss.h>
24#include <linux/module.h>
25#include <linux/types.h>
26#include <drm/drmP.h>
27#include <drm/drm_crtc_helper.h>
28#include <drm/omap_drm.h>
29#include <linux/platform_data/omap_drm.h>
30
31
32#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
33#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */
34
35#define MODULE_NAME "omapdrm"
36
37/* max # of mapper-id's that can be assigned.. todo, come up with a better
38 * (but still inexpensive) way to store/access per-buffer mapper private
39 * data..
40 */
41#define MAX_MAPPERS 2
42
43/* parameters which describe (unrotated) coordinates of scanout within a fb: */
44struct omap_drm_window {
45 uint32_t rotation;
46 int32_t crtc_x, crtc_y; /* signed because can be offscreen */
47 uint32_t crtc_w, crtc_h;
48 uint32_t src_x, src_y;
49 uint32_t src_w, src_h;
50};
51
52/* Once GO bit is set, we can't make further updates to shadowed registers
53 * until the GO bit is cleared. So various parts in the kms code that need
54 * to update shadowed registers queue up a pair of callbacks, pre_apply
55 * which is called before setting GO bit, and post_apply that is called
56 * after GO bit is cleared. The crtc manages the queuing, and everyone
57 * else goes thru omap_crtc_apply() using these callbacks so that the
58 * code which has to deal w/ GO bit state is centralized.
59 */
60struct omap_drm_apply {
61 struct list_head pending_node, queued_node;
62 bool queued;
63 void (*pre_apply)(struct omap_drm_apply *apply);
64 void (*post_apply)(struct omap_drm_apply *apply);
65};
66
67/* For transiently registering for different DSS irqs that various parts
68 * of the KMS code need during setup/configuration. We these are not
69 * necessarily the same as what drm_vblank_get/put() are requesting, and
70 * the hysteresis in drm_vblank_put() is not necessarily desirable for
71 * internal housekeeping related irq usage.
72 */
73struct omap_drm_irq {
74 struct list_head node;
75 uint32_t irqmask;
76 bool registered;
77 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus);
78};
79
80/* For KMS code that needs to wait for a certain # of IRQs:
81 */
82struct omap_irq_wait;
83struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev,
84 uint32_t irqmask, int count);
85int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait,
86 unsigned long timeout);
87
88struct omap_drm_private {
89 uint32_t omaprev;
90
91 unsigned int num_crtcs;
92 struct drm_crtc *crtcs[8];
93
94 unsigned int num_planes;
95 struct drm_plane *planes[8];
96
97 unsigned int num_encoders;
98 struct drm_encoder *encoders[8];
99
100 unsigned int num_connectors;
101 struct drm_connector *connectors[8];
102
103 struct drm_fb_helper *fbdev;
104
105 struct workqueue_struct *wq;
106
107 /* list of GEM objects: */
108 struct list_head obj_list;
109
110 bool has_dmm;
111
112 /* properties: */
113 struct drm_property *rotation_prop;
114 struct drm_property *zorder_prop;
115
116 /* irq handling: */
117 struct list_head irq_list; /* list of omap_drm_irq */
118 uint32_t vblank_mask; /* irq bits set for userspace vblank */
119 struct omap_drm_irq error_handler;
120};
121
122/* this should probably be in drm-core to standardize amongst drivers */
123#define DRM_ROTATE_0 0
124#define DRM_ROTATE_90 1
125#define DRM_ROTATE_180 2
126#define DRM_ROTATE_270 3
127#define DRM_REFLECT_X 4
128#define DRM_REFLECT_Y 5
129
130#ifdef CONFIG_DEBUG_FS
131int omap_debugfs_init(struct drm_minor *minor);
132void omap_debugfs_cleanup(struct drm_minor *minor);
133void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
134void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
135void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
136#endif
137
138#ifdef CONFIG_PM
139int omap_gem_resume(struct device *dev);
140#endif
141
142int omap_irq_enable_vblank(struct drm_device *dev, int crtc_id);
143void omap_irq_disable_vblank(struct drm_device *dev, int crtc_id);
144irqreturn_t omap_irq_handler(int irq, void *arg);
145void omap_irq_preinstall(struct drm_device *dev);
146int omap_irq_postinstall(struct drm_device *dev);
147void omap_irq_uninstall(struct drm_device *dev);
148void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
149void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
150void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
151void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
152int omap_drm_irq_uninstall(struct drm_device *dev);
153int omap_drm_irq_install(struct drm_device *dev);
154
155struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
156void omap_fbdev_free(struct drm_device *dev);
157
158const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
159enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
160int omap_crtc_apply(struct drm_crtc *crtc,
161 struct omap_drm_apply *apply);
162void omap_crtc_pre_init(void);
163void omap_crtc_pre_uninit(void);
164struct drm_crtc *omap_crtc_init(struct drm_device *dev,
165 struct drm_plane *plane, enum omap_channel channel, int id);
166void omap_crtc_flush(struct drm_crtc *crtc);
167
168struct drm_plane *omap_plane_init(struct drm_device *dev,
169 int plane_id, bool private_plane);
170int omap_plane_dpms(struct drm_plane *plane, int mode);
171int omap_plane_mode_set(struct drm_plane *plane,
172 struct drm_crtc *crtc, struct drm_framebuffer *fb,
173 int crtc_x, int crtc_y,
174 unsigned int crtc_w, unsigned int crtc_h,
175 uint32_t src_x, uint32_t src_y,
176 uint32_t src_w, uint32_t src_h,
177 void (*fxn)(void *), void *arg);
178void omap_plane_install_properties(struct drm_plane *plane,
179 struct drm_mode_object *obj);
180int omap_plane_set_property(struct drm_plane *plane,
181 struct drm_property *property, uint64_t val);
182
183struct drm_encoder *omap_encoder_init(struct drm_device *dev,
184 struct omap_dss_device *dssdev);
185int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled);
186int omap_encoder_update(struct drm_encoder *encoder,
187 struct omap_overlay_manager *mgr,
188 struct omap_video_timings *timings);
189
190struct drm_connector *omap_connector_init(struct drm_device *dev,
191 int connector_type, struct omap_dss_device *dssdev,
192 struct drm_encoder *encoder);
193struct drm_encoder *omap_connector_attached_encoder(
194 struct drm_connector *connector);
195void omap_connector_flush(struct drm_connector *connector,
196 int x, int y, int w, int h);
197
198void copy_timings_omap_to_drm(struct drm_display_mode *mode,
199 struct omap_video_timings *timings);
200void copy_timings_drm_to_omap(struct omap_video_timings *timings,
201 struct drm_display_mode *mode);
202
203uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
204 uint32_t max_formats, enum omap_color_mode supported_modes);
205struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
206 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
207struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
208 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
209struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
210int omap_framebuffer_pin(struct drm_framebuffer *fb);
211int omap_framebuffer_unpin(struct drm_framebuffer *fb);
212void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
213 struct omap_drm_window *win, struct omap_overlay_info *info);
214struct drm_connector *omap_framebuffer_get_next_connector(
215 struct drm_framebuffer *fb, struct drm_connector *from);
216void omap_framebuffer_flush(struct drm_framebuffer *fb,
217 int x, int y, int w, int h);
218
219void omap_gem_init(struct drm_device *dev);
220void omap_gem_deinit(struct drm_device *dev);
221
222struct drm_gem_object *omap_gem_new(struct drm_device *dev,
223 union omap_gem_size gsize, uint32_t flags);
224int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
225 union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
226void omap_gem_free_object(struct drm_gem_object *obj);
227void *omap_gem_vaddr(struct drm_gem_object *obj);
228int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
229 uint32_t handle, uint64_t *offset);
230int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
231 struct drm_mode_create_dumb *args);
232int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
233int omap_gem_mmap_obj(struct drm_gem_object *obj,
234 struct vm_area_struct *vma);
235int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
236int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
237int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
238int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
239int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
240 void (*fxn)(void *arg), void *arg);
241int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
242void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff);
243void omap_gem_dma_sync(struct drm_gem_object *obj,
244 enum dma_data_direction dir);
245int omap_gem_get_paddr(struct drm_gem_object *obj,
246 dma_addr_t *paddr, bool remap);
247int omap_gem_put_paddr(struct drm_gem_object *obj);
248int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
249 bool remap);
250int omap_gem_put_pages(struct drm_gem_object *obj);
251uint32_t omap_gem_flags(struct drm_gem_object *obj);
252int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient,
253 int x, int y, dma_addr_t *paddr);
254uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
255size_t omap_gem_mmap_size(struct drm_gem_object *obj);
256int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h);
257int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient);
258
259struct dma_buf *omap_gem_prime_export(struct drm_device *dev,
260 struct drm_gem_object *obj, int flags);
261struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
262 struct dma_buf *buffer);
263
264static inline int align_pitch(int pitch, int width, int bpp)
265{
266 int bytespp = (bpp + 7) / 8;
267 /* in case someone tries to feed us a completely bogus stride: */
268 pitch = max(pitch, width * bytespp);
269 /* PVR needs alignment to 8 pixels.. right now that is the most
270 * restrictive stride requirement..
271 */
272 return ALIGN(pitch, 8 * bytespp);
273}
274
275/* map crtc to vblank mask */
276uint32_t pipe2vbl(struct drm_crtc *crtc);
277struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
278
279/* should these be made into common util helpers?
280 */
281
282static inline int objects_lookup(struct drm_device *dev,
283 struct drm_file *filp, uint32_t pixel_format,
284 struct drm_gem_object **bos, uint32_t *handles)
285{
286 int i, n = drm_format_num_planes(pixel_format);
287
288 for (i = 0; i < n; i++) {
289 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
290 if (!bos[i])
291 goto fail;
292
293 }
294
295 return 0;
296
297fail:
298 while (--i > 0)
299 drm_gem_object_unreference_unlocked(bos[i]);
300
301 return -ENOENT;
302}
303
304#endif /* __OMAP_DRV_H__ */