summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/gvt/fb_decoder.c
blob: 835c3fde8a202d1c05c692a8af484c76d981b745 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
/*
 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Authors:
 *    Kevin Tian <kevin.tian@intel.com>
 *
 * Contributors:
 *    Bing Niu <bing.niu@intel.com>
 *    Xu Han <xu.han@intel.com>
 *    Ping Gao <ping.a.gao@intel.com>
 *    Xiaoguang Chen <xiaoguang.chen@intel.com>
 *    Yang Liu <yang2.liu@intel.com>
 *    Tina Zhang <tina.zhang@intel.com>
 *
 */

#include <uapi/drm/drm_fourcc.h>
#include "i915_drv.h"
#include "gvt.h"
#include "i915_pvinfo.h"
#include "i915_reg.h"

#define PRIMARY_FORMAT_NUM	16
struct pixel_format {
	int drm_format;	/* Pixel format in DRM definition */
	int bpp; /* Bits per pixel, 0 indicates invalid */
	const char *desc; /* The description */
};

static const struct pixel_format bdw_pixel_formats[] = {
	{DRM_FORMAT_C8, 8, "8-bit Indexed"},
	{DRM_FORMAT_RGB565, 16, "16-bit BGRX (5:6:5 MSB-R:G:B)"},
	{DRM_FORMAT_XRGB8888, 32, "32-bit BGRX (8:8:8:8 MSB-X:R:G:B)"},
	{DRM_FORMAT_XBGR2101010, 32, "32-bit RGBX (2:10:10:10 MSB-X:B:G:R)"},

	{DRM_FORMAT_XRGB2101010, 32, "32-bit BGRX (2:10:10:10 MSB-X:R:G:B)"},
	{DRM_FORMAT_XBGR8888, 32, "32-bit RGBX (8:8:8:8 MSB-X:B:G:R)"},

	/* non-supported format has bpp default to 0 */
	{0, 0, NULL},
};

static const struct pixel_format skl_pixel_formats[] = {
	{DRM_FORMAT_YUYV, 16, "16-bit packed YUYV (8:8:8:8 MSB-V:Y2:U:Y1)"},
	{DRM_FORMAT_UYVY, 16, "16-bit packed UYVY (8:8:8:8 MSB-Y2:V:Y1:U)"},
	{DRM_FORMAT_YVYU, 16, "16-bit packed YVYU (8:8:8:8 MSB-U:Y2:V:Y1)"},
	{DRM_FORMAT_VYUY, 16, "16-bit packed VYUY (8:8:8:8 MSB-Y2:U:Y1:V)"},

	{DRM_FORMAT_C8, 8, "8-bit Indexed"},
	{DRM_FORMAT_RGB565, 16, "16-bit BGRX (5:6:5 MSB-R:G:B)"},
	{DRM_FORMAT_ABGR8888, 32, "32-bit RGBA (8:8:8:8 MSB-A:B:G:R)"},
	{DRM_FORMAT_XBGR8888, 32, "32-bit RGBX (8:8:8:8 MSB-X:B:G:R)"},

	{DRM_FORMAT_ARGB8888, 32, "32-bit BGRA (8:8:8:8 MSB-A:R:G:B)"},
	{DRM_FORMAT_XRGB8888, 32, "32-bit BGRX (8:8:8:8 MSB-X:R:G:B)"},
	{DRM_FORMAT_XBGR2101010, 32, "32-bit RGBX (2:10:10:10 MSB-X:B:G:R)"},
	{DRM_FORMAT_XRGB2101010, 32, "32-bit BGRX (2:10:10:10 MSB-X:R:G:B)"},

	/* non-supported format has bpp default to 0 */
	{0, 0, NULL},
};

static int bdw_format_to_drm(int format)
{
	int bdw_pixel_formats_index = 6;

	switch (format) {
	case DISP_FORMAT_8BPP:
		bdw_pixel_formats_index = 0;
		break;
	case DISP_FORMAT_BGRX565:
		bdw_pixel_formats_index = 1;
		break;
	case DISP_FORMAT_BGRX888:
		bdw_pixel_formats_index = 2;
		break;
	case DISP_FORMAT_RGBX101010:
		bdw_pixel_formats_index = 3;
		break;
	case DISP_FORMAT_BGRX101010:
		bdw_pixel_formats_index = 4;
		break;
	case DISP_FORMAT_RGBX888:
		bdw_pixel_formats_index = 5;
		break;

	default:
		break;
	}

	return bdw_pixel_formats_index;
}

static int skl_format_to_drm(int format, bool rgb_order, bool alpha,
	int yuv_order)
{
	int skl_pixel_formats_index = 12;

	switch (format) {
	case PLANE_CTL_FORMAT_INDEXED:
		skl_pixel_formats_index = 4;
		break;
	case PLANE_CTL_FORMAT_RGB_565:
		skl_pixel_formats_index = 5;
		break;
	case PLANE_CTL_FORMAT_XRGB_8888:
		if (rgb_order)
			skl_pixel_formats_index = alpha ? 6 : 7;
		else
			skl_pixel_formats_index = alpha ? 8 : 9;
		break;
	case PLANE_CTL_FORMAT_XRGB_2101010:
		skl_pixel_formats_index = rgb_order ? 10 : 11;
		break;
	case PLANE_CTL_FORMAT_YUV422:
		skl_pixel_formats_index = yuv_order >> 16;
		if (skl_pixel_formats_index > 3)
			return -EINVAL;
		break;

	default:
		break;
	}

	return skl_pixel_formats_index;
}

static u32 intel_vgpu_get_stride(struct intel_vgpu *vgpu, int pipe,
	u32 tiled, int stride_mask, int bpp)
{
	struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;

	u32 stride_reg = vgpu_vreg_t(vgpu, DSPSTRIDE(pipe)) & stride_mask;
	u32 stride = stride_reg;

	if (GRAPHICS_VER(dev_priv) >= 9) {
		switch (tiled) {
		case PLANE_CTL_TILED_LINEAR:
			stride = stride_reg * 64;
			break;
		case PLANE_CTL_TILED_X:
			stride = stride_reg * 512;
			break;
		case PLANE_CTL_TILED_Y:
			stride = stride_reg * 128;
			break;
		case PLANE_CTL_TILED_YF:
			if (bpp == 8)
				stride = stride_reg * 64;
			else if (bpp == 16 || bpp == 32 || bpp == 64)
				stride = stride_reg * 128;
			else
				gvt_dbg_core("skl: unsupported bpp:%d\n", bpp);
			break;
		default:
			gvt_dbg_core("skl: unsupported tile format:%x\n",
				tiled);
		}
	}

	return stride;
}

static int get_active_pipe(struct intel_vgpu *vgpu)
{
	int i;

	for (i = 0; i < I915_MAX_PIPES; i++)
		if (pipe_is_enabled(vgpu, i))
			break;

	return i;
}

/**
 * intel_vgpu_decode_primary_plane - Decode primary plane
 * @vgpu: input vgpu
 * @plane: primary plane to save decoded info
 * This function is called for decoding plane
 *
 * Returns:
 * 0 on success, non-zero if failed.
 */
int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
	struct intel_vgpu_primary_plane_format *plane)
{
	struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;
	u32 val, fmt;
	int pipe;

	pipe = get_active_pipe(vgpu);
	if (pipe >= I915_MAX_PIPES)
		return -ENODEV;

	val = vgpu_vreg_t(vgpu, DSPCNTR(pipe));
	plane->enabled = !!(val & DISP_ENABLE);
	if (!plane->enabled)
		return -ENODEV;

	if (GRAPHICS_VER(dev_priv) >= 9) {
		plane->tiled = val & PLANE_CTL_TILED_MASK;
		fmt = skl_format_to_drm(
			val & PLANE_CTL_FORMAT_MASK_SKL,
			val & PLANE_CTL_ORDER_RGBX,
			val & PLANE_CTL_ALPHA_MASK,
			val & PLANE_CTL_YUV422_ORDER_MASK);

		if (fmt >= ARRAY_SIZE(skl_pixel_formats)) {
			gvt_vgpu_err("Out-of-bounds pixel format index\n");
			return -EINVAL;
		}

		plane->bpp = skl_pixel_formats[fmt].bpp;
		plane->drm_format = skl_pixel_formats[fmt].drm_format;
	} else {
		plane->tiled = val & DISP_TILED;
		fmt = bdw_format_to_drm(val & DISP_FORMAT_MASK);
		plane->bpp = bdw_pixel_formats[fmt].bpp;
		plane->drm_format = bdw_pixel_formats[fmt].drm_format;
	}

	if (!plane->bpp) {
		gvt_vgpu_err("Non-supported pixel format (0x%x)\n", fmt);
		return -EINVAL;
	}

	plane->hw_format = fmt;

	plane->base = vgpu_vreg_t(vgpu, DSPSURF(pipe)) & I915_GTT_PAGE_MASK;
	if (!vgpu_gmadr_is_valid(vgpu, plane->base))
		return  -EINVAL;

	plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
	if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
		gvt_vgpu_err("Translate primary plane gma 0x%x to gpa fail\n",
				plane->base);
		return  -EINVAL;
	}

	plane->stride = intel_vgpu_get_stride(vgpu, pipe, plane->tiled,
		(GRAPHICS_VER(dev_priv) >= 9) ?
		(_PRI_PLANE_STRIDE_MASK >> 6) :
		_PRI_PLANE_STRIDE_MASK, plane->bpp);

	plane->width = (vgpu_vreg_t(vgpu, PIPESRC(pipe)) & _PIPE_H_SRCSZ_MASK) >>
		_PIPE_H_SRCSZ_SHIFT;
	plane->width += 1;
	plane->height = (vgpu_vreg_t(vgpu, PIPESRC(pipe)) &
			_PIPE_V_SRCSZ_MASK) >> _PIPE_V_SRCSZ_SHIFT;
	plane->height += 1;	/* raw height is one minus the real value */

	val = vgpu_vreg_t(vgpu, DSPTILEOFF(pipe));
	plane->x_offset = (val & _PRI_PLANE_X_OFF_MASK) >>
		_PRI_PLANE_X_OFF_SHIFT;
	plane->y_offset = (val & _PRI_PLANE_Y_OFF_MASK) >>
		_PRI_PLANE_Y_OFF_SHIFT;

	return 0;
}

#define CURSOR_FORMAT_NUM	(1 << 6)
struct cursor_mode_format {
	int drm_format;	/* Pixel format in DRM definition */
	u8 bpp; /* Bits per pixel; 0 indicates invalid */
	u32 width; /* In pixel */
	u32 height; /* In lines */
	const char *desc; /* The description */
};

static const struct cursor_mode_format cursor_pixel_formats[] = {
	{DRM_FORMAT_ARGB8888, 32, 128, 128, "128x128 32bpp ARGB"},
	{DRM_FORMAT_ARGB8888, 32, 256, 256, "256x256 32bpp ARGB"},
	{DRM_FORMAT_ARGB8888, 32, 64, 64, "64x64 32bpp ARGB"},
	{DRM_FORMAT_ARGB8888, 32, 64, 64, "64x64 32bpp ARGB"},

	/* non-supported format has bpp default to 0 */
	{0, 0, 0, 0, NULL},
};

static int cursor_mode_to_drm(int mode)
{
	int cursor_pixel_formats_index = 4;

	switch (mode) {
	case MCURSOR_MODE_128_ARGB_AX:
		cursor_pixel_formats_index = 0;
		break;
	case MCURSOR_MODE_256_ARGB_AX:
		cursor_pixel_formats_index = 1;
		break;
	case MCURSOR_MODE_64_ARGB_AX:
		cursor_pixel_formats_index = 2;
		break;
	case MCURSOR_MODE_64_32B_AX:
		cursor_pixel_formats_index = 3;
		break;

	default:
		break;
	}

	return cursor_pixel_formats_index;
}

/**
 * intel_vgpu_decode_cursor_plane - Decode sprite plane
 * @vgpu: input vgpu
 * @plane: cursor plane to save decoded info
 * This function is called for decoding plane
 *
 * Returns:
 * 0 on success, non-zero if failed.
 */
int intel_vgpu_decode_cursor_plane(struct intel_vgpu *vgpu,
	struct intel_vgpu_cursor_plane_format *plane)
{
	struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;
	u32 val, mode, index;
	u32 alpha_plane, alpha_force;
	int pipe;

	pipe = get_active_pipe(vgpu);
	if (pipe >= I915_MAX_PIPES)
		return -ENODEV;

	val = vgpu_vreg_t(vgpu, CURCNTR(pipe));
	mode = val & MCURSOR_MODE_MASK;
	plane->enabled = (mode != MCURSOR_MODE_DISABLE);
	if (!plane->enabled)
		return -ENODEV;

	index = cursor_mode_to_drm(mode);

	if (!cursor_pixel_formats[index].bpp) {
		gvt_vgpu_err("Non-supported cursor mode (0x%x)\n", mode);
		return -EINVAL;
	}
	plane->mode = mode;
	plane->bpp = cursor_pixel_formats[index].bpp;
	plane->drm_format = cursor_pixel_formats[index].drm_format;
	plane->width = cursor_pixel_formats[index].width;
	plane->height = cursor_pixel_formats[index].height;

	alpha_plane = (val & _CURSOR_ALPHA_PLANE_MASK) >>
				_CURSOR_ALPHA_PLANE_SHIFT;
	alpha_force = (val & _CURSOR_ALPHA_FORCE_MASK) >>
				_CURSOR_ALPHA_FORCE_SHIFT;
	if (alpha_plane || alpha_force)
		gvt_dbg_core("alpha_plane=0x%x, alpha_force=0x%x\n",
			alpha_plane, alpha_force);

	plane->base = vgpu_vreg_t(vgpu, CURBASE(pipe)) & I915_GTT_PAGE_MASK;
	if (!vgpu_gmadr_is_valid(vgpu, plane->base))
		return  -EINVAL;

	plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
	if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
		gvt_vgpu_err("Translate cursor plane gma 0x%x to gpa fail\n",
				plane->base);
		return  -EINVAL;
	}

	val = vgpu_vreg_t(vgpu, CURPOS(pipe));
	plane->x_pos = (val & _CURSOR_POS_X_MASK) >> _CURSOR_POS_X_SHIFT;
	plane->x_sign = (val & _CURSOR_SIGN_X_MASK) >> _CURSOR_SIGN_X_SHIFT;
	plane->y_pos = (val & _CURSOR_POS_Y_MASK) >> _CURSOR_POS_Y_SHIFT;
	plane->y_sign = (val & _CURSOR_SIGN_Y_MASK) >> _CURSOR_SIGN_Y_SHIFT;

	plane->x_hot = vgpu_vreg_t(vgpu, vgtif_reg(cursor_x_hot));
	plane->y_hot = vgpu_vreg_t(vgpu, vgtif_reg(cursor_y_hot));
	return 0;
}

#define SPRITE_FORMAT_NUM	(1 << 3)

static const struct pixel_format sprite_pixel_formats[SPRITE_FORMAT_NUM] = {
	[0x0] = {DRM_FORMAT_YUV422, 16, "YUV 16-bit 4:2:2 packed"},
	[0x1] = {DRM_FORMAT_XRGB2101010, 32, "RGB 32-bit 2:10:10:10"},
	[0x2] = {DRM_FORMAT_XRGB8888, 32, "RGB 32-bit 8:8:8:8"},
	[0x4] = {DRM_FORMAT_AYUV, 32,
		"YUV 32-bit 4:4:4 packed (8:8:8:8 MSB-X:Y:U:V)"},
};

/**
 * intel_vgpu_decode_sprite_plane - Decode sprite plane
 * @vgpu: input vgpu
 * @plane: sprite plane to save decoded info
 * This function is called for decoding plane
 *
 * Returns:
 * 0 on success, non-zero if failed.
 */
int intel_vgpu_decode_sprite_plane(struct intel_vgpu *vgpu,
	struct intel_vgpu_sprite_plane_format *plane)
{
	u32 val, fmt;
	u32 color_order, yuv_order;
	int drm_format;
	int pipe;

	pipe = get_active_pipe(vgpu);
	if (pipe >= I915_MAX_PIPES)
		return -ENODEV;

	val = vgpu_vreg_t(vgpu, SPRCTL(pipe));
	plane->enabled = !!(val & SPRITE_ENABLE);
	if (!plane->enabled)
		return -ENODEV;

	plane->tiled = !!(val & SPRITE_TILED);
	color_order = !!(val & SPRITE_RGB_ORDER_RGBX);
	yuv_order = (val & SPRITE_YUV_ORDER_MASK) >>
				_SPRITE_YUV_ORDER_SHIFT;

	fmt = (val & SPRITE_FORMAT_MASK) >> _SPRITE_FMT_SHIFT;
	if (!sprite_pixel_formats[fmt].bpp) {
		gvt_vgpu_err("Non-supported pixel format (0x%x)\n", fmt);
		return -EINVAL;
	}
	plane->hw_format = fmt;
	plane->bpp = sprite_pixel_formats[fmt].bpp;
	drm_format = sprite_pixel_formats[fmt].drm_format;

	/* Order of RGB values in an RGBxxx buffer may be ordered RGB or
	 * BGR depending on the state of the color_order field
	 */
	if (!color_order) {
		if (drm_format == DRM_FORMAT_XRGB2101010)
			drm_format = DRM_FORMAT_XBGR2101010;
		else if (drm_format == DRM_FORMAT_XRGB8888)
			drm_format = DRM_FORMAT_XBGR8888;
	}

	if (drm_format == DRM_FORMAT_YUV422) {
		switch (yuv_order) {
		case 0:
			drm_format = DRM_FORMAT_YUYV;
			break;
		case 1:
			drm_format = DRM_FORMAT_UYVY;
			break;
		case 2:
			drm_format = DRM_FORMAT_YVYU;
			break;
		case 3:
			drm_format = DRM_FORMAT_VYUY;
			break;
		default:
			/* yuv_order has only 2 bits */
			break;
		}
	}

	plane->drm_format = drm_format;

	plane->base = vgpu_vreg_t(vgpu, SPRSURF(pipe)) & I915_GTT_PAGE_MASK;
	if (!vgpu_gmadr_is_valid(vgpu, plane->base))
		return  -EINVAL;

	plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
	if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
		gvt_vgpu_err("Translate sprite plane gma 0x%x to gpa fail\n",
				plane->base);
		return  -EINVAL;
	}

	plane->stride = vgpu_vreg_t(vgpu, SPRSTRIDE(pipe)) &
				_SPRITE_STRIDE_MASK;

	val = vgpu_vreg_t(vgpu, SPRSIZE(pipe));
	plane->height = (val & _SPRITE_SIZE_HEIGHT_MASK) >>
		_SPRITE_SIZE_HEIGHT_SHIFT;
	plane->width = (val & _SPRITE_SIZE_WIDTH_MASK) >>
		_SPRITE_SIZE_WIDTH_SHIFT;
	plane->height += 1;	/* raw height is one minus the real value */
	plane->width += 1;	/* raw width is one minus the real value */

	val = vgpu_vreg_t(vgpu, SPRPOS(pipe));
	plane->x_pos = (val & _SPRITE_POS_X_MASK) >> _SPRITE_POS_X_SHIFT;
	plane->y_pos = (val & _SPRITE_POS_Y_MASK) >> _SPRITE_POS_Y_SHIFT;

	val = vgpu_vreg_t(vgpu, SPROFFSET(pipe));
	plane->x_offset = (val & _SPRITE_OFFSET_START_X_MASK) >>
			   _SPRITE_OFFSET_START_X_SHIFT;
	plane->y_offset = (val & _SPRITE_OFFSET_START_Y_MASK) >>
			   _SPRITE_OFFSET_START_Y_SHIFT;

	return 0;
}