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1126 serge 1
/*
2
 * Copyright © 2007 David Airlie
3
 *
4
 * Permission is hereby granted, free of charge, to any person obtaining a
5
 * copy of this software and associated documentation files (the "Software"),
6
 * to deal in the Software without restriction, including without limitation
7
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8
 * and/or sell copies of the Software, and to permit persons to whom the
9
 * Software is furnished to do so, subject to the following conditions:
10
 *
11
 * The above copyright notice and this permission notice (including the next
12
 * paragraph) shall be included in all copies or substantial portions of the
13
 * Software.
14
 *
15
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21
 * DEALINGS IN THE SOFTWARE.
22
 *
23
 * Authors:
24
 *     David Airlie
25
 */
1179 serge 26
#include 
1986 serge 27
#include 
1179 serge 28
#include 
1126 serge 29
 
2997 Serge 30
#include 
31
#include 
32
#include 
33
#include 
1126 serge 34
#include "radeon.h"
35
 
2997 Serge 36
#include 
1179 serge 37
 
1126 serge 38
 
2997 Serge 39
int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
40
                     struct drm_mode_fb_cmd2 *mode_cmd,
1986 serge 41
                     struct drm_gem_object **gobj_p);
42
 
1963 serge 43
/* object hierarchy -
44
   this contains a helper + a radeon fb
45
   the helper contains a pointer to radeon framebuffer baseclass.
46
*/
47
struct radeon_fbdev {
1179 serge 48
    struct drm_fb_helper        helper;
1963 serge 49
	struct radeon_framebuffer rfb;
50
	struct list_head fbdev_list;
1126 serge 51
	struct radeon_device		*rdev;
52
};
53
 
54
static struct fb_ops radeonfb_ops = {
2997 Serge 55
	.owner = THIS_MODULE,
1179 serge 56
	.fb_check_var = drm_fb_helper_check_var,
57
	.fb_set_par = drm_fb_helper_set_par,
58
//	.fb_fillrect = cfb_fillrect,
59
//	.fb_copyarea = cfb_copyarea,
60
//	.fb_imageblit = cfb_imageblit,
61
//	.fb_pan_display = drm_fb_helper_pan_display,
62
	.fb_blank = drm_fb_helper_blank,
1221 serge 63
	.fb_setcmap = drm_fb_helper_setcmap,
1126 serge 64
};
65
 
66
 
1233 serge 67
int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled)
1126 serge 68
{
69
	int aligned = width;
1179 serge 70
	int align_large = (ASIC_IS_AVIVO(rdev)) || tiled;
1126 serge 71
	int pitch_mask = 0;
72
 
73
	switch (bpp / 8) {
74
	case 1:
75
		pitch_mask = align_large ? 255 : 127;
76
		break;
77
	case 2:
78
		pitch_mask = align_large ? 127 : 31;
79
		break;
80
	case 3:
81
	case 4:
82
		pitch_mask = align_large ? 63 : 15;
83
		break;
84
	}
85
 
86
	aligned += pitch_mask;
87
	aligned &= ~pitch_mask;
88
	return aligned;
89
}
90
 
1179 serge 91
 
1963 serge 92
static int radeonfb_create(struct radeon_fbdev *rfbdev,
93
			   struct drm_fb_helper_surface_size *sizes)
94
{
95
	struct radeon_device *rdev = rfbdev->rdev;
96
	struct fb_info *info;
97
	struct drm_framebuffer *fb = NULL;
2997 Serge 98
	struct drm_mode_fb_cmd2 mode_cmd;
1963 serge 99
	struct drm_gem_object *gobj = NULL;
100
	struct radeon_bo *rbo = NULL;
101
	struct device *device = &rdev->pdev->dev;
102
	int ret;
103
	unsigned long tmp;
1126 serge 104
 
1963 serge 105
    ENTER();
106
 
107
	mode_cmd.width = sizes->surface_width;
108
	mode_cmd.height = sizes->surface_height;
109
 
110
	/* avivo can't scanout real 24bpp */
111
	if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
112
		sizes->surface_bpp = 32;
113
 
2997 Serge 114
	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
115
							  sizes->surface_depth);
1963 serge 116
 
2997 Serge 117
	ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
118
	if (ret) {
119
		DRM_ERROR("failed to create fbcon object %d\n", ret);
120
		return ret;
121
	}
122
 
1986 serge 123
	rbo = gem_to_radeon_bo(gobj);
1963 serge 124
 
125
	/* okay we have an object now allocate the framebuffer */
126
	info = framebuffer_alloc(0, device);
1126 serge 127
	if (info == NULL) {
2997 Serge 128
        dbgprintf("framebuffer_alloc\n");
1126 serge 129
		ret = -ENOMEM;
130
		goto out_unref;
131
	}
1179 serge 132
 
1963 serge 133
	info->par = rfbdev;
1126 serge 134
 
2997 Serge 135
	ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
136
	if (ret) {
137
		DRM_ERROR("failed to initalise framebuffer %d\n", ret);
138
		goto out_unref;
139
	}
1963 serge 140
 
141
	fb = &rfbdev->rfb.base;
142
 
143
	/* setup helper */
144
	rfbdev->helper.fb = fb;
145
	rfbdev->helper.fbdev = info;
146
 
147
//   memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo));
148
 
1179 serge 149
	strcpy(info->fix.id, "radeondrmfb");
1126 serge 150
 
2997 Serge 151
	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
1179 serge 152
 
1963 serge 153
	info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
1179 serge 154
	info->fbops = &radeonfb_ops;
155
 
1963 serge 156
	tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start;
1126 serge 157
	info->fix.smem_start = rdev->mc.aper_base + tmp;
1963 serge 158
	info->fix.smem_len = radeon_bo_size(rbo);
159
	info->screen_base = rbo->kptr;
160
	info->screen_size = radeon_bo_size(rbo);
1179 serge 161
 
1963 serge 162
	drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height);
1179 serge 163
 
164
	/* setup aperture base/size for vesafb takeover */
1963 serge 165
	info->apertures = alloc_apertures(1);
166
	if (!info->apertures) {
167
		ret = -ENOMEM;
168
		goto out_unref;
169
	}
170
	info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base;
171
	info->apertures->ranges[0].size = rdev->mc.aper_size;
1179 serge 172
 
2997 Serge 173
	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
1963 serge 174
 
2997 Serge 175
//   if (info->screen_base == NULL) {
176
//       ret = -ENOSPC;
177
//       goto out_unref;
178
//   }
1126 serge 179
	DRM_INFO("fb mappable at 0x%lX\n",  info->fix.smem_start);
180
	DRM_INFO("vram apper at 0x%lX\n",  (unsigned long)rdev->mc.aper_base);
1963 serge 181
	DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
1126 serge 182
	DRM_INFO("fb depth is %d\n", fb->depth);
2997 Serge 183
	DRM_INFO("   pitch is %d\n", fb->pitches[0]);
1126 serge 184
 
1986 serge 185
 
1963 serge 186
    LEAVE();
1126 serge 187
 
1963 serge 188
    return 0;
1126 serge 189
 
190
out_unref:
1404 serge 191
	if (rbo) {
1963 serge 192
 
1126 serge 193
	}
194
	if (fb && ret) {
195
		kfree(fb);
196
	}
197
	return ret;
198
}
199
 
1963 serge 200
static int radeon_fb_find_or_create_single(struct drm_fb_helper *helper,
201
					   struct drm_fb_helper_surface_size *sizes)
1126 serge 202
{
1963 serge 203
	struct radeon_fbdev *rfbdev = (struct radeon_fbdev *)helper;
204
	int new_fb = 0;
205
	int ret;
206
 
207
	if (!helper->fb) {
208
		ret = radeonfb_create(rfbdev, sizes);
209
		if (ret)
210
			return ret;
211
		new_fb = 1;
212
	}
213
	return new_fb;
214
}
215
static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev)
216
{
217
	struct fb_info *info;
218
	struct radeon_framebuffer *rfb = &rfbdev->rfb;
219
 
220
	if (rfbdev->helper.fbdev) {
221
		info = rfbdev->helper.fbdev;
222
 
223
//       unregister_framebuffer(info);
224
//       framebuffer_release(info);
225
	}
226
 
227
	if (rfb->obj) {
228
		rfb->obj = NULL;
229
	}
230
//   drm_fb_helper_fini(&rfbdev->helper);
231
	drm_framebuffer_cleanup(&rfb->base);
232
 
233
	return 0;
234
}
235
 
236
static struct drm_fb_helper_funcs radeon_fb_helper_funcs = {
237
	.gamma_set = radeon_crtc_fb_gamma_set,
238
	.gamma_get = radeon_crtc_fb_gamma_get,
239
	.fb_probe = radeon_fb_find_or_create_single,
240
};
241
 
1986 serge 242
extern struct radeon_fbdev *kos_rfbdev;
243
 
1963 serge 244
int radeon_fbdev_init(struct radeon_device *rdev)
245
{
246
	struct radeon_fbdev *rfbdev;
1404 serge 247
	int bpp_sel = 32;
1963 serge 248
	int ret;
1404 serge 249
 
1963 serge 250
    ENTER();
251
 
1404 serge 252
	/* select 8 bpp console on RN50 or 16MB cards */
253
	if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024))
254
		bpp_sel = 8;
255
 
1963 serge 256
	rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL);
257
	if (!rfbdev)
258
		return -ENOMEM;
1126 serge 259
 
1963 serge 260
	rfbdev->rdev = rdev;
261
	rdev->mode_info.rfbdev = rfbdev;
262
	rfbdev->helper.funcs = &radeon_fb_helper_funcs;
1126 serge 263
 
1963 serge 264
	ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper,
265
				 rdev->num_crtc,
266
				 RADEONFB_CONN_LIMIT);
267
	if (ret) {
268
		kfree(rfbdev);
269
		return ret;
1126 serge 270
	}
271
 
1963 serge 272
	drm_fb_helper_single_add_all_connectors(&rfbdev->helper);
273
	drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
1179 serge 274
 
1986 serge 275
    kos_rfbdev = rfbdev;
276
 
1963 serge 277
    LEAVE();
278
 
1126 serge 279
	return 0;
280
}
1963 serge 281
 
282
void radeon_fbdev_fini(struct radeon_device *rdev)
283
{
284
	if (!rdev->mode_info.rfbdev)
285
		return;
286
 
287
	radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev);
288
	kfree(rdev->mode_info.rfbdev);
289
	rdev->mode_info.rfbdev = NULL;
290
}
291
 
292
 
293
int radeon_fbdev_total_size(struct radeon_device *rdev)
294
{
295
	struct radeon_bo *robj;
296
	int size = 0;
297
 
1986 serge 298
	robj = gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj);
1963 serge 299
	size += radeon_bo_size(robj);
300
	return size;
301
}
302
 
303
bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
304
{
1986 serge 305
	if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj))
1963 serge 306
		return true;
307
	return false;
308
}