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Full support for Ginger Console
[linux-ginger.git] / drivers / video / via / accel.c
blob9d4f3a49ba4a5038a333c940351dd85cf5df0deb
1 /*
2 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation;
8 * either version 2, or (at your option) any later version.
9
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
13 * A PARTICULAR PURPOSE.See the GNU General Public License
14 * for more details.
15
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21 #include "global.h"
22
23 static int hw_bitblt_1(void __iomem *engine, u8 op, u32 width, u32 height,
24 u8 dst_bpp, u32 dst_addr, u32 dst_pitch, u32 dst_x, u32 dst_y,
25 u32 *src_mem, u32 src_addr, u32 src_pitch, u32 src_x, u32 src_y,
26 u32 fg_color, u32 bg_color, u8 fill_rop)
27 {
28 u32 ge_cmd = 0, tmp, i;
29
30 if (!op || op > 3) {
31 printk(KERN_WARNING "hw_bitblt_1: Invalid operation: %d\n", op);
32 return -EINVAL;
33 }
34
35 if (op != VIA_BITBLT_FILL && !src_mem && src_addr == dst_addr) {
36 if (src_x < dst_x) {
37 ge_cmd |= 0x00008000;
38 src_x += width - 1;
39 dst_x += width - 1;
40 }
41 if (src_y < dst_y) {
42 ge_cmd |= 0x00004000;
43 src_y += height - 1;
44 dst_y += height - 1;
45 }
46 }
47
48 if (op == VIA_BITBLT_FILL) {
49 switch (fill_rop) {
50 case 0x00: /* blackness */
51 case 0x5A: /* pattern inversion */
52 case 0xF0: /* pattern copy */
53 case 0xFF: /* whiteness */
54 break;
55 default:
56 printk(KERN_WARNING "hw_bitblt_1: Invalid fill rop: "
57 "%u\n", fill_rop);
58 return -EINVAL;
59 }
60 }
61
62 switch (dst_bpp) {
63 case 8:
64 tmp = 0x00000000;
65 break;
66 case 16:
67 tmp = 0x00000100;
68 break;
69 case 32:
70 tmp = 0x00000300;
71 break;
72 default:
73 printk(KERN_WARNING "hw_bitblt_1: Unsupported bpp %d\n",
74 dst_bpp);
75 return -EINVAL;
76 }
77 writel(tmp, engine + 0x04);
78
79 if (op != VIA_BITBLT_FILL) {
80 if (src_x & (op == VIA_BITBLT_MONO ? 0xFFFF8000 : 0xFFFFF000)
81 || src_y & 0xFFFFF000) {
82 printk(KERN_WARNING "hw_bitblt_1: Unsupported source "
83 "x/y %d %d\n", src_x, src_y);
84 return -EINVAL;
85 }
86 tmp = src_x | (src_y << 16);
87 writel(tmp, engine + 0x08);
88 }
89
90 if (dst_x & 0xFFFFF000 || dst_y & 0xFFFFF000) {
91 printk(KERN_WARNING "hw_bitblt_1: Unsupported destination x/y "
92 "%d %d\n", dst_x, dst_y);
93 return -EINVAL;
94 }
95 tmp = dst_x | (dst_y << 16);
96 writel(tmp, engine + 0x0C);
97
98 if ((width - 1) & 0xFFFFF000 || (height - 1) & 0xFFFFF000) {
99 printk(KERN_WARNING "hw_bitblt_1: Unsupported width/height "
100 "%d %d\n", width, height);
101 return -EINVAL;
102 }
103 tmp = (width - 1) | ((height - 1) << 16);
104 writel(tmp, engine + 0x10);
105
106 if (op != VIA_BITBLT_COLOR)
107 writel(fg_color, engine + 0x18);
108
109 if (op == VIA_BITBLT_MONO)
110 writel(bg_color, engine + 0x1C);
111
112 if (op != VIA_BITBLT_FILL) {
113 tmp = src_mem ? 0 : src_addr;
114 if (dst_addr & 0xE0000007) {
115 printk(KERN_WARNING "hw_bitblt_1: Unsupported source "
116 "address %X\n", tmp);
117 return -EINVAL;
118 }
119 tmp >>= 3;
120 writel(tmp, engine + 0x30);
121 }
122
123 if (dst_addr & 0xE0000007) {
124 printk(KERN_WARNING "hw_bitblt_1: Unsupported destination "
125 "address %X\n", dst_addr);
126 return -EINVAL;
127 }
128 tmp = dst_addr >> 3;
129 writel(tmp, engine + 0x34);
130
131 if (op == VIA_BITBLT_FILL)
132 tmp = 0;
133 else
134 tmp = src_pitch;
135 if (tmp & 0xFFFFC007 || dst_pitch & 0xFFFFC007) {
136 printk(KERN_WARNING "hw_bitblt_1: Unsupported pitch %X %X\n",
137 tmp, dst_pitch);
138 return -EINVAL;
139 }
140 tmp = (tmp >> 3) | (dst_pitch << (16 - 3));
141 writel(tmp, engine + 0x38);
142
143 if (op == VIA_BITBLT_FILL)
144 ge_cmd |= fill_rop << 24 | 0x00002000 | 0x00000001;
145 else {
146 ge_cmd |= 0xCC000000; /* ROP=SRCCOPY */
147 if (src_mem)
148 ge_cmd |= 0x00000040;
149 if (op == VIA_BITBLT_MONO)
150 ge_cmd |= 0x00000002 | 0x00000100 | 0x00020000;
151 else
152 ge_cmd |= 0x00000001;
153 }
154 writel(ge_cmd, engine);
155
156 if (op == VIA_BITBLT_FILL || !src_mem)
157 return 0;
158
159 tmp = (width * height * (op == VIA_BITBLT_MONO ? 1 : (dst_bpp >> 3)) +
160 3) >> 2;
161
162 for (i = 0; i < tmp; i++)
163 writel(src_mem[i], engine + VIA_MMIO_BLTBASE);
164
165 return 0;
166 }
167
168 static int hw_bitblt_2(void __iomem *engine, u8 op, u32 width, u32 height,
169 u8 dst_bpp, u32 dst_addr, u32 dst_pitch, u32 dst_x, u32 dst_y,
170 u32 *src_mem, u32 src_addr, u32 src_pitch, u32 src_x, u32 src_y,
171 u32 fg_color, u32 bg_color, u8 fill_rop)
172 {
173 u32 ge_cmd = 0, tmp, i;
174
175 if (!op || op > 3) {
176 printk(KERN_WARNING "hw_bitblt_2: Invalid operation: %d\n", op);
177 return -EINVAL;
178 }
179
180 if (op != VIA_BITBLT_FILL && !src_mem && src_addr == dst_addr) {
181 if (src_x < dst_x) {
182 ge_cmd |= 0x00008000;
183 src_x += width - 1;
184 dst_x += width - 1;
185 }
186 if (src_y < dst_y) {
187 ge_cmd |= 0x00004000;
188 src_y += height - 1;
189 dst_y += height - 1;
190 }
191 }
192
193 if (op == VIA_BITBLT_FILL) {
194 switch (fill_rop) {
195 case 0x00: /* blackness */
196 case 0x5A: /* pattern inversion */
197 case 0xF0: /* pattern copy */
198 case 0xFF: /* whiteness */
199 break;
200 default:
201 printk(KERN_WARNING "hw_bitblt_2: Invalid fill rop: "
202 "%u\n", fill_rop);
203 return -EINVAL;
204 }
205 }
206
207 switch (dst_bpp) {
208 case 8:
209 tmp = 0x00000000;
210 break;
211 case 16:
212 tmp = 0x00000100;
213 break;
214 case 32:
215 tmp = 0x00000300;
216 break;
217 default:
218 printk(KERN_WARNING "hw_bitblt_2: Unsupported bpp %d\n",
219 dst_bpp);
220 return -EINVAL;
221 }
222 writel(tmp, engine + 0x04);
223
224 if (op == VIA_BITBLT_FILL)
225 tmp = 0;
226 else
227 tmp = src_pitch;
228 if (tmp & 0xFFFFC007 || dst_pitch & 0xFFFFC007) {
229 printk(KERN_WARNING "hw_bitblt_2: Unsupported pitch %X %X\n",
230 tmp, dst_pitch);
231 return -EINVAL;
232 }
233 tmp = (tmp >> 3) | (dst_pitch << (16 - 3));
234 writel(tmp, engine + 0x08);
235
236 if ((width - 1) & 0xFFFFF000 || (height - 1) & 0xFFFFF000) {
237 printk(KERN_WARNING "hw_bitblt_2: Unsupported width/height "
238 "%d %d\n", width, height);
239 return -EINVAL;
240 }
241 tmp = (width - 1) | ((height - 1) << 16);
242 writel(tmp, engine + 0x0C);
243
244 if (dst_x & 0xFFFFF000 || dst_y & 0xFFFFF000) {
245 printk(KERN_WARNING "hw_bitblt_2: Unsupported destination x/y "
246 "%d %d\n", dst_x, dst_y);
247 return -EINVAL;
248 }
249 tmp = dst_x | (dst_y << 16);
250 writel(tmp, engine + 0x10);
251
252 if (dst_addr & 0xE0000007) {
253 printk(KERN_WARNING "hw_bitblt_2: Unsupported destination "
254 "address %X\n", dst_addr);
255 return -EINVAL;
256 }
257 tmp = dst_addr >> 3;
258 writel(tmp, engine + 0x14);
259
260 if (op != VIA_BITBLT_FILL) {
261 if (src_x & (op == VIA_BITBLT_MONO ? 0xFFFF8000 : 0xFFFFF000)
262 || src_y & 0xFFFFF000) {
263 printk(KERN_WARNING "hw_bitblt_2: Unsupported source "
264 "x/y %d %d\n", src_x, src_y);
265 return -EINVAL;
266 }
267 tmp = src_x | (src_y << 16);
268 writel(tmp, engine + 0x18);
269
270 tmp = src_mem ? 0 : src_addr;
271 if (dst_addr & 0xE0000007) {
272 printk(KERN_WARNING "hw_bitblt_2: Unsupported source "
273 "address %X\n", tmp);
274 return -EINVAL;
275 }
276 tmp >>= 3;
277 writel(tmp, engine + 0x1C);
278 }
279
280 if (op != VIA_BITBLT_COLOR)
281 writel(fg_color, engine + 0x4C);
282
283 if (op == VIA_BITBLT_MONO)
284 writel(bg_color, engine + 0x50);
285
286 if (op == VIA_BITBLT_FILL)
287 ge_cmd |= fill_rop << 24 | 0x00002000 | 0x00000001;
288 else {
289 ge_cmd |= 0xCC000000; /* ROP=SRCCOPY */
290 if (src_mem)
291 ge_cmd |= 0x00000040;
292 if (op == VIA_BITBLT_MONO)
293 ge_cmd |= 0x00000002 | 0x00000100 | 0x00020000;
294 else
295 ge_cmd |= 0x00000001;
296 }
297 writel(ge_cmd, engine);
298
299 if (op == VIA_BITBLT_FILL || !src_mem)
300 return 0;
301
302 tmp = (width * height * (op == VIA_BITBLT_MONO ? 1 : (dst_bpp >> 3)) +
303 3) >> 2;
304
305 for (i = 0; i < tmp; i++)
306 writel(src_mem[i], engine + VIA_MMIO_BLTBASE);
307
308 return 0;
309 }
310
311 int viafb_init_engine(struct fb_info *info)
312 {
313 struct viafb_par *viapar = info->par;
314 void __iomem *engine;
315 u32 vq_start_addr, vq_end_addr, vq_start_low, vq_end_low, vq_high,
316 vq_len, chip_name = viapar->shared->chip_info.gfx_chip_name;
317
318 engine = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
319 viapar->shared->engine_mmio = engine;
320 if (!engine) {
321 printk(KERN_WARNING "viafb_init_accel: ioremap failed, "
322 "hardware acceleration disabled\n");
323 return -ENOMEM;
324 }
325
326 switch (chip_name) {
327 case UNICHROME_CLE266:
328 case UNICHROME_K400:
329 case UNICHROME_K800:
330 case UNICHROME_PM800:
331 case UNICHROME_CN700:
332 case UNICHROME_CX700:
333 case UNICHROME_CN750:
334 case UNICHROME_K8M890:
335 case UNICHROME_P4M890:
336 case UNICHROME_P4M900:
337 viapar->shared->hw_bitblt = hw_bitblt_1;
338 break;
339 case UNICHROME_VX800:
340 case UNICHROME_VX855:
341 viapar->shared->hw_bitblt = hw_bitblt_2;
342 break;
343 default:
344 viapar->shared->hw_bitblt = NULL;
345 }
346
347 viapar->fbmem_free -= CURSOR_SIZE;
348 viapar->shared->cursor_vram_addr = viapar->fbmem_free;
349 viapar->fbmem_used += CURSOR_SIZE;
350
351 viapar->fbmem_free -= VQ_SIZE;
352 viapar->shared->vq_vram_addr = viapar->fbmem_free;
353 viapar->fbmem_used += VQ_SIZE;
354
355 /* Init AGP and VQ regs */
356 switch (chip_name) {
357 case UNICHROME_K8M890:
358 case UNICHROME_P4M900:
359 writel(0x00100000, engine + VIA_REG_CR_TRANSET);
360 writel(0x680A0000, engine + VIA_REG_CR_TRANSPACE);
361 writel(0x02000000, engine + VIA_REG_CR_TRANSPACE);
362 break;
363
364 default:
365 writel(0x00100000, engine + VIA_REG_TRANSET);
366 writel(0x00000000, engine + VIA_REG_TRANSPACE);
367 writel(0x00333004, engine + VIA_REG_TRANSPACE);
368 writel(0x60000000, engine + VIA_REG_TRANSPACE);
369 writel(0x61000000, engine + VIA_REG_TRANSPACE);
370 writel(0x62000000, engine + VIA_REG_TRANSPACE);
371 writel(0x63000000, engine + VIA_REG_TRANSPACE);
372 writel(0x64000000, engine + VIA_REG_TRANSPACE);
373 writel(0x7D000000, engine + VIA_REG_TRANSPACE);
374
375 writel(0xFE020000, engine + VIA_REG_TRANSET);
376 writel(0x00000000, engine + VIA_REG_TRANSPACE);
377 break;
378 }
379
380 /* Enable VQ */
381 vq_start_addr = viapar->shared->vq_vram_addr;
382 vq_end_addr = viapar->shared->vq_vram_addr + VQ_SIZE - 1;
383
384 vq_start_low = 0x50000000 | (vq_start_addr & 0xFFFFFF);
385 vq_end_low = 0x51000000 | (vq_end_addr & 0xFFFFFF);
386 vq_high = 0x52000000 | ((vq_start_addr & 0xFF000000) >> 24) |
387 ((vq_end_addr & 0xFF000000) >> 16);
388 vq_len = 0x53000000 | (VQ_SIZE >> 3);
389
390 switch (chip_name) {
391 case UNICHROME_K8M890:
392 case UNICHROME_P4M900:
393 vq_start_low |= 0x20000000;
394 vq_end_low |= 0x20000000;
395 vq_high |= 0x20000000;
396 vq_len |= 0x20000000;
397
398 writel(0x00100000, engine + VIA_REG_CR_TRANSET);
399 writel(vq_high, engine + VIA_REG_CR_TRANSPACE);
400 writel(vq_start_low, engine + VIA_REG_CR_TRANSPACE);
401 writel(vq_end_low, engine + VIA_REG_CR_TRANSPACE);
402 writel(vq_len, engine + VIA_REG_CR_TRANSPACE);
403 writel(0x74301001, engine + VIA_REG_CR_TRANSPACE);
404 writel(0x00000000, engine + VIA_REG_CR_TRANSPACE);
405 break;
406 default:
407 writel(0x00FE0000, engine + VIA_REG_TRANSET);
408 writel(0x080003FE, engine + VIA_REG_TRANSPACE);
409 writel(0x0A00027C, engine + VIA_REG_TRANSPACE);
410 writel(0x0B000260, engine + VIA_REG_TRANSPACE);
411 writel(0x0C000274, engine + VIA_REG_TRANSPACE);
412 writel(0x0D000264, engine + VIA_REG_TRANSPACE);
413 writel(0x0E000000, engine + VIA_REG_TRANSPACE);
414 writel(0x0F000020, engine + VIA_REG_TRANSPACE);
415 writel(0x1000027E, engine + VIA_REG_TRANSPACE);
416 writel(0x110002FE, engine + VIA_REG_TRANSPACE);
417 writel(0x200F0060, engine + VIA_REG_TRANSPACE);
418
419 writel(0x00000006, engine + VIA_REG_TRANSPACE);
420 writel(0x40008C0F, engine + VIA_REG_TRANSPACE);
421 writel(0x44000000, engine + VIA_REG_TRANSPACE);
422 writel(0x45080C04, engine + VIA_REG_TRANSPACE);
423 writel(0x46800408, engine + VIA_REG_TRANSPACE);
424
425 writel(vq_high, engine + VIA_REG_TRANSPACE);
426 writel(vq_start_low, engine + VIA_REG_TRANSPACE);
427 writel(vq_end_low, engine + VIA_REG_TRANSPACE);
428 writel(vq_len, engine + VIA_REG_TRANSPACE);
429 break;
430 }
431
432 /* Set Cursor Image Base Address */
433 writel(viapar->shared->cursor_vram_addr, engine + VIA_REG_CURSOR_MODE);
434 writel(0x0, engine + VIA_REG_CURSOR_POS);
435 writel(0x0, engine + VIA_REG_CURSOR_ORG);
436 writel(0x0, engine + VIA_REG_CURSOR_BG);
437 writel(0x0, engine + VIA_REG_CURSOR_FG);
438 return 0;
439 }
440
441 void viafb_show_hw_cursor(struct fb_info *info, int Status)
442 {
443 struct viafb_par *viapar = info->par;
444 u32 temp, iga_path = viapar->iga_path;
445
446 temp = readl(viapar->shared->engine_mmio + VIA_REG_CURSOR_MODE);
447 switch (Status) {
448 case HW_Cursor_ON:
449 temp |= 0x1;
450 break;
451 case HW_Cursor_OFF:
452 temp &= 0xFFFFFFFE;
453 break;
454 }
455 switch (iga_path) {
456 case IGA2:
457 temp |= 0x80000000;
458 break;
459 case IGA1:
460 default:
461 temp &= 0x7FFFFFFF;
462 }
463 writel(temp, viapar->shared->engine_mmio + VIA_REG_CURSOR_MODE);
464 }
465
466 void viafb_wait_engine_idle(struct fb_info *info)
467 {
468 struct viafb_par *viapar = info->par;
469 int loop = 0;
470
471 while (!(readl(viapar->shared->engine_mmio + VIA_REG_STATUS) &
472 VIA_VR_QUEUE_BUSY) && (loop < MAXLOOP)) {
473 loop++;
474 cpu_relax();
475 }
476
477 while ((readl(viapar->shared->engine_mmio + VIA_REG_STATUS) &
478 (VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY | VIA_3D_ENG_BUSY)) &&
479 (loop < MAXLOOP)) {
480 loop++;
481 cpu_relax();
482 }
483
484 if (loop >= MAXLOOP)
485 printk(KERN_ERR "viafb_wait_engine_idle: not syncing\n");
486 }
Linux for Ginger Game Console