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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...
[mirror_ubuntu-artful-kernel.git] / drivers / char / drm / radeon_cp.c
1 /* radeon_cp.c -- CP support for Radeon -*- linux-c -*- */
2 /*
3 * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
4 * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
5 * Copyright 2007 Advanced Micro Devices, Inc.
6 * All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
26 *
27 * Authors:
28 * Kevin E. Martin <martin@valinux.com>
29 * Gareth Hughes <gareth@valinux.com>
30 */
31
32 #include "drmP.h"
33 #include "drm.h"
34 #include "radeon_drm.h"
35 #include "radeon_drv.h"
36 #include "r300_reg.h"
37
38 #include "radeon_microcode.h"
39
40 #define RADEON_FIFO_DEBUG 0
41
42 static int radeon_do_cleanup_cp(struct drm_device * dev);
43
44 static u32 R500_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
45 {
46 u32 ret;
47 RADEON_WRITE(R520_MC_IND_INDEX, 0x7f0000 | (addr & 0xff));
48 ret = RADEON_READ(R520_MC_IND_DATA);
49 RADEON_WRITE(R520_MC_IND_INDEX, 0);
50 return ret;
51 }
52
53 static u32 RS480_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
54 {
55 u32 ret;
56 RADEON_WRITE(RS480_NB_MC_INDEX, addr & 0xff);
57 ret = RADEON_READ(RS480_NB_MC_DATA);
58 RADEON_WRITE(RS480_NB_MC_INDEX, 0xff);
59 return ret;
60 }
61
62 static u32 RS690_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
63 {
64 u32 ret;
65 RADEON_WRITE(RS690_MC_INDEX, (addr & RS690_MC_INDEX_MASK));
66 ret = RADEON_READ(RS690_MC_DATA);
67 RADEON_WRITE(RS690_MC_INDEX, RS690_MC_INDEX_MASK);
68 return ret;
69 }
70
71 static u32 IGP_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
72 {
73 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
74 return RS690_READ_MCIND(dev_priv, addr);
75 else
76 return RS480_READ_MCIND(dev_priv, addr);
77 }
78
79 u32 radeon_read_fb_location(drm_radeon_private_t *dev_priv)
80 {
81
82 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
83 return R500_READ_MCIND(dev_priv, RV515_MC_FB_LOCATION);
84 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
85 return RS690_READ_MCIND(dev_priv, RS690_MC_FB_LOCATION);
86 else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
87 return R500_READ_MCIND(dev_priv, R520_MC_FB_LOCATION);
88 else
89 return RADEON_READ(RADEON_MC_FB_LOCATION);
90 }
91
92 static void radeon_write_fb_location(drm_radeon_private_t *dev_priv, u32 fb_loc)
93 {
94 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
95 R500_WRITE_MCIND(RV515_MC_FB_LOCATION, fb_loc);
96 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
97 RS690_WRITE_MCIND(RS690_MC_FB_LOCATION, fb_loc);
98 else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
99 R500_WRITE_MCIND(R520_MC_FB_LOCATION, fb_loc);
100 else
101 RADEON_WRITE(RADEON_MC_FB_LOCATION, fb_loc);
102 }
103
104 static void radeon_write_agp_location(drm_radeon_private_t *dev_priv, u32 agp_loc)
105 {
106 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
107 R500_WRITE_MCIND(RV515_MC_AGP_LOCATION, agp_loc);
108 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
109 RS690_WRITE_MCIND(RS690_MC_AGP_LOCATION, agp_loc);
110 else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
111 R500_WRITE_MCIND(R520_MC_AGP_LOCATION, agp_loc);
112 else
113 RADEON_WRITE(RADEON_MC_AGP_LOCATION, agp_loc);
114 }
115
116 static void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
117 {
118 u32 agp_base_hi = upper_32_bits(agp_base);
119 u32 agp_base_lo = agp_base & 0xffffffff;
120
121 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) {
122 R500_WRITE_MCIND(RV515_MC_AGP_BASE, agp_base_lo);
123 R500_WRITE_MCIND(RV515_MC_AGP_BASE_2, agp_base_hi);
124 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) {
125 RS690_WRITE_MCIND(RS690_MC_AGP_BASE, agp_base_lo);
126 RS690_WRITE_MCIND(RS690_MC_AGP_BASE_2, agp_base_hi);
127 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515) {
128 R500_WRITE_MCIND(R520_MC_AGP_BASE, agp_base_lo);
129 R500_WRITE_MCIND(R520_MC_AGP_BASE_2, agp_base_hi);
130 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480) {
131 RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
132 RADEON_WRITE(RS480_AGP_BASE_2, 0);
133 } else {
134 RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
135 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
136 RADEON_WRITE(RADEON_AGP_BASE_2, agp_base_hi);
137 }
138 }
139
140 static int RADEON_READ_PLL(struct drm_device * dev, int addr)
141 {
142 drm_radeon_private_t *dev_priv = dev->dev_private;
143
144 RADEON_WRITE8(RADEON_CLOCK_CNTL_INDEX, addr & 0x1f);
145 return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
146 }
147
148 static u32 RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
149 {
150 RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
151 return RADEON_READ(RADEON_PCIE_DATA);
152 }
153
154 #if RADEON_FIFO_DEBUG
155 static void radeon_status(drm_radeon_private_t * dev_priv)
156 {
157 printk("%s:\n", __func__);
158 printk("RBBM_STATUS = 0x%08x\n",
159 (unsigned int)RADEON_READ(RADEON_RBBM_STATUS));
160 printk("CP_RB_RTPR = 0x%08x\n",
161 (unsigned int)RADEON_READ(RADEON_CP_RB_RPTR));
162 printk("CP_RB_WTPR = 0x%08x\n",
163 (unsigned int)RADEON_READ(RADEON_CP_RB_WPTR));
164 printk("AIC_CNTL = 0x%08x\n",
165 (unsigned int)RADEON_READ(RADEON_AIC_CNTL));
166 printk("AIC_STAT = 0x%08x\n",
167 (unsigned int)RADEON_READ(RADEON_AIC_STAT));
168 printk("AIC_PT_BASE = 0x%08x\n",
169 (unsigned int)RADEON_READ(RADEON_AIC_PT_BASE));
170 printk("TLB_ADDR = 0x%08x\n",
171 (unsigned int)RADEON_READ(RADEON_AIC_TLB_ADDR));
172 printk("TLB_DATA = 0x%08x\n",
173 (unsigned int)RADEON_READ(RADEON_AIC_TLB_DATA));
174 }
175 #endif
176
177 /* ================================================================
178 * Engine, FIFO control
179 */
180
181 static int radeon_do_pixcache_flush(drm_radeon_private_t * dev_priv)
182 {
183 u32 tmp;
184 int i;
185
186 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
187
188 if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV280) {
189 tmp = RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT);
190 tmp |= RADEON_RB3D_DC_FLUSH_ALL;
191 RADEON_WRITE(RADEON_RB3D_DSTCACHE_CTLSTAT, tmp);
192
193 for (i = 0; i < dev_priv->usec_timeout; i++) {
194 if (!(RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT)
195 & RADEON_RB3D_DC_BUSY)) {
196 return 0;
197 }
198 DRM_UDELAY(1);
199 }
200 } else {
201 /* 3D */
202 tmp = RADEON_READ(R300_RB3D_DSTCACHE_CTLSTAT);
203 tmp |= RADEON_RB3D_DC_FLUSH_ALL;
204 RADEON_WRITE(R300_RB3D_DSTCACHE_CTLSTAT, tmp);
205
206 /* 2D */
207 tmp = RADEON_READ(R300_DSTCACHE_CTLSTAT);
208 tmp |= RADEON_RB3D_DC_FLUSH_ALL;
209 RADEON_WRITE(R300_DSTCACHE_CTLSTAT, tmp);
210
211 for (i = 0; i < dev_priv->usec_timeout; i++) {
212 if (!(RADEON_READ(R300_DSTCACHE_CTLSTAT)
213 & RADEON_RB3D_DC_BUSY)) {
214 return 0;
215 }
216 DRM_UDELAY(1);
217 }
218 }
219
220 #if RADEON_FIFO_DEBUG
221 DRM_ERROR("failed!\n");
222 radeon_status(dev_priv);
223 #endif
224 return -EBUSY;
225 }
226
227 static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries)
228 {
229 int i;
230
231 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
232
233 for (i = 0; i < dev_priv->usec_timeout; i++) {
234 int slots = (RADEON_READ(RADEON_RBBM_STATUS)
235 & RADEON_RBBM_FIFOCNT_MASK);
236 if (slots >= entries)
237 return 0;
238 DRM_UDELAY(1);
239 }
240
241 #if RADEON_FIFO_DEBUG
242 DRM_ERROR("failed!\n");
243 radeon_status(dev_priv);
244 #endif
245 return -EBUSY;
246 }
247
248 static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
249 {
250 int i, ret;
251
252 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
253
254 ret = radeon_do_wait_for_fifo(dev_priv, 64);
255 if (ret)
256 return ret;
257
258 for (i = 0; i < dev_priv->usec_timeout; i++) {
259 if (!(RADEON_READ(RADEON_RBBM_STATUS)
260 & RADEON_RBBM_ACTIVE)) {
261 radeon_do_pixcache_flush(dev_priv);
262 return 0;
263 }
264 DRM_UDELAY(1);
265 }
266
267 #if RADEON_FIFO_DEBUG
268 DRM_ERROR("failed!\n");
269 radeon_status(dev_priv);
270 #endif
271 return -EBUSY;
272 }
273
274 static void radeon_init_pipes(drm_radeon_private_t *dev_priv)
275 {
276 uint32_t gb_tile_config, gb_pipe_sel = 0;
277
278 /* RS4xx/RS6xx/R4xx/R5xx */
279 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) {
280 gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT);
281 dev_priv->num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
282 } else {
283 /* R3xx */
284 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
285 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350)) {
286 dev_priv->num_gb_pipes = 2;
287 } else {
288 /* R3Vxx */
289 dev_priv->num_gb_pipes = 1;
290 }
291 }
292 DRM_INFO("Num pipes: %d\n", dev_priv->num_gb_pipes);
293
294 gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16 /*| R300_SUBPIXEL_1_16*/);
295
296 switch (dev_priv->num_gb_pipes) {
297 case 2: gb_tile_config |= R300_PIPE_COUNT_R300; break;
298 case 3: gb_tile_config |= R300_PIPE_COUNT_R420_3P; break;
299 case 4: gb_tile_config |= R300_PIPE_COUNT_R420; break;
300 default:
301 case 1: gb_tile_config |= R300_PIPE_COUNT_RV350; break;
302 }
303
304 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
305 RADEON_WRITE_PLL(R500_DYN_SCLK_PWMEM_PIPE, (1 | ((gb_pipe_sel >> 8) & 0xf) << 4));
306 RADEON_WRITE(R500_SU_REG_DEST, ((1 << dev_priv->num_gb_pipes) - 1));
307 }
308 RADEON_WRITE(R300_GB_TILE_CONFIG, gb_tile_config);
309 radeon_do_wait_for_idle(dev_priv);
310 RADEON_WRITE(R300_DST_PIPE_CONFIG, RADEON_READ(R300_DST_PIPE_CONFIG) | R300_PIPE_AUTO_CONFIG);
311 RADEON_WRITE(R300_RB2D_DSTCACHE_MODE, (RADEON_READ(R300_RB2D_DSTCACHE_MODE) |
312 R300_DC_AUTOFLUSH_ENABLE |
313 R300_DC_DC_DISABLE_IGNORE_PE));
314
315
316 }
317
318 /* ================================================================
319 * CP control, initialization
320 */
321
322 /* Load the microcode for the CP */
323 static void radeon_cp_load_microcode(drm_radeon_private_t * dev_priv)
324 {
325 int i;
326 DRM_DEBUG("\n");
327
328 radeon_do_wait_for_idle(dev_priv);
329
330 RADEON_WRITE(RADEON_CP_ME_RAM_ADDR, 0);
331 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R100) ||
332 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV100) ||
333 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV200) ||
334 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS100) ||
335 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS200)) {
336 DRM_INFO("Loading R100 Microcode\n");
337 for (i = 0; i < 256; i++) {
338 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
339 R100_cp_microcode[i][1]);
340 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
341 R100_cp_microcode[i][0]);
342 }
343 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R200) ||
344 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV250) ||
345 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV280) ||
346 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS300)) {
347 DRM_INFO("Loading R200 Microcode\n");
348 for (i = 0; i < 256; i++) {
349 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
350 R200_cp_microcode[i][1]);
351 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
352 R200_cp_microcode[i][0]);
353 }
354 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
355 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350) ||
356 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV350) ||
357 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV380) ||
358 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
359 DRM_INFO("Loading R300 Microcode\n");
360 for (i = 0; i < 256; i++) {
361 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
362 R300_cp_microcode[i][1]);
363 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
364 R300_cp_microcode[i][0]);
365 }
366 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
367 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV410)) {
368 DRM_INFO("Loading R400 Microcode\n");
369 for (i = 0; i < 256; i++) {
370 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
371 R420_cp_microcode[i][1]);
372 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
373 R420_cp_microcode[i][0]);
374 }
375 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) {
376 DRM_INFO("Loading RS690 Microcode\n");
377 for (i = 0; i < 256; i++) {
378 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
379 RS690_cp_microcode[i][1]);
380 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
381 RS690_cp_microcode[i][0]);
382 }
383 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) ||
384 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R520) ||
385 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) ||
386 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R580) ||
387 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV560) ||
388 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV570)) {
389 DRM_INFO("Loading R500 Microcode\n");
390 for (i = 0; i < 256; i++) {
391 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
392 R520_cp_microcode[i][1]);
393 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
394 R520_cp_microcode[i][0]);
395 }
396 }
397 }
398
399 /* Flush any pending commands to the CP. This should only be used just
400 * prior to a wait for idle, as it informs the engine that the command
401 * stream is ending.
402 */
403 static void radeon_do_cp_flush(drm_radeon_private_t * dev_priv)
404 {
405 DRM_DEBUG("\n");
406 #if 0
407 u32 tmp;
408
409 tmp = RADEON_READ(RADEON_CP_RB_WPTR) | (1 << 31);
410 RADEON_WRITE(RADEON_CP_RB_WPTR, tmp);
411 #endif
412 }
413
414 /* Wait for the CP to go idle.
415 */
416 int radeon_do_cp_idle(drm_radeon_private_t * dev_priv)
417 {
418 RING_LOCALS;
419 DRM_DEBUG("\n");
420
421 BEGIN_RING(6);
422
423 RADEON_PURGE_CACHE();
424 RADEON_PURGE_ZCACHE();
425 RADEON_WAIT_UNTIL_IDLE();
426
427 ADVANCE_RING();
428 COMMIT_RING();
429
430 return radeon_do_wait_for_idle(dev_priv);
431 }
432
433 /* Start the Command Processor.
434 */
435 static void radeon_do_cp_start(drm_radeon_private_t * dev_priv)
436 {
437 RING_LOCALS;
438 DRM_DEBUG("\n");
439
440 radeon_do_wait_for_idle(dev_priv);
441
442 RADEON_WRITE(RADEON_CP_CSQ_CNTL, dev_priv->cp_mode);
443
444 dev_priv->cp_running = 1;
445
446 BEGIN_RING(6);
447
448 RADEON_PURGE_CACHE();
449 RADEON_PURGE_ZCACHE();
450 RADEON_WAIT_UNTIL_IDLE();
451
452 ADVANCE_RING();
453 COMMIT_RING();
454 }
455
456 /* Reset the Command Processor. This will not flush any pending
457 * commands, so you must wait for the CP command stream to complete
458 * before calling this routine.
459 */
460 static void radeon_do_cp_reset(drm_radeon_private_t * dev_priv)
461 {
462 u32 cur_read_ptr;
463 DRM_DEBUG("\n");
464
465 cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
466 RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
467 SET_RING_HEAD(dev_priv, cur_read_ptr);
468 dev_priv->ring.tail = cur_read_ptr;
469 }
470
471 /* Stop the Command Processor. This will not flush any pending
472 * commands, so you must flush the command stream and wait for the CP
473 * to go idle before calling this routine.
474 */
475 static void radeon_do_cp_stop(drm_radeon_private_t * dev_priv)
476 {
477 DRM_DEBUG("\n");
478
479 RADEON_WRITE(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIDIS_INDDIS);
480
481 dev_priv->cp_running = 0;
482 }
483
484 /* Reset the engine. This will stop the CP if it is running.
485 */
486 static int radeon_do_engine_reset(struct drm_device * dev)
487 {
488 drm_radeon_private_t *dev_priv = dev->dev_private;
489 u32 clock_cntl_index = 0, mclk_cntl = 0, rbbm_soft_reset;
490 DRM_DEBUG("\n");
491
492 radeon_do_pixcache_flush(dev_priv);
493
494 if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
495 /* may need something similar for newer chips */
496 clock_cntl_index = RADEON_READ(RADEON_CLOCK_CNTL_INDEX);
497 mclk_cntl = RADEON_READ_PLL(dev, RADEON_MCLK_CNTL);
498
499 RADEON_WRITE_PLL(RADEON_MCLK_CNTL, (mclk_cntl |
500 RADEON_FORCEON_MCLKA |
501 RADEON_FORCEON_MCLKB |
502 RADEON_FORCEON_YCLKA |
503 RADEON_FORCEON_YCLKB |
504 RADEON_FORCEON_MC |
505 RADEON_FORCEON_AIC));
506 }
507
508 rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);
509
510 RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
511 RADEON_SOFT_RESET_CP |
512 RADEON_SOFT_RESET_HI |
513 RADEON_SOFT_RESET_SE |
514 RADEON_SOFT_RESET_RE |
515 RADEON_SOFT_RESET_PP |
516 RADEON_SOFT_RESET_E2 |
517 RADEON_SOFT_RESET_RB));
518 RADEON_READ(RADEON_RBBM_SOFT_RESET);
519 RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
520 ~(RADEON_SOFT_RESET_CP |
521 RADEON_SOFT_RESET_HI |
522 RADEON_SOFT_RESET_SE |
523 RADEON_SOFT_RESET_RE |
524 RADEON_SOFT_RESET_PP |
525 RADEON_SOFT_RESET_E2 |
526 RADEON_SOFT_RESET_RB)));
527 RADEON_READ(RADEON_RBBM_SOFT_RESET);
528
529 if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
530 RADEON_WRITE_PLL(RADEON_MCLK_CNTL, mclk_cntl);
531 RADEON_WRITE(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
532 RADEON_WRITE(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);
533 }
534
535 /* setup the raster pipes */
536 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R300)
537 radeon_init_pipes(dev_priv);
538
539 /* Reset the CP ring */
540 radeon_do_cp_reset(dev_priv);
541
542 /* The CP is no longer running after an engine reset */
543 dev_priv->cp_running = 0;
544
545 /* Reset any pending vertex, indirect buffers */
546 radeon_freelist_reset(dev);
547
548 return 0;
549 }
550
551 static void radeon_cp_init_ring_buffer(struct drm_device * dev,
552 drm_radeon_private_t * dev_priv)
553 {
554 u32 ring_start, cur_read_ptr;
555 u32 tmp;
556
557 /* Initialize the memory controller. With new memory map, the fb location
558 * is not changed, it should have been properly initialized already. Part
559 * of the problem is that the code below is bogus, assuming the GART is
560 * always appended to the fb which is not necessarily the case
561 */
562 if (!dev_priv->new_memmap)
563 radeon_write_fb_location(dev_priv,
564 ((dev_priv->gart_vm_start - 1) & 0xffff0000)
565 | (dev_priv->fb_location >> 16));
566
567 #if __OS_HAS_AGP
568 if (dev_priv->flags & RADEON_IS_AGP) {
569 radeon_write_agp_base(dev_priv, dev->agp->base);
570
571 radeon_write_agp_location(dev_priv,
572 (((dev_priv->gart_vm_start - 1 +
573 dev_priv->gart_size) & 0xffff0000) |
574 (dev_priv->gart_vm_start >> 16)));
575
576 ring_start = (dev_priv->cp_ring->offset
577 - dev->agp->base
578 + dev_priv->gart_vm_start);
579 } else
580 #endif
581 ring_start = (dev_priv->cp_ring->offset
582 - (unsigned long)dev->sg->virtual
583 + dev_priv->gart_vm_start);
584
585 RADEON_WRITE(RADEON_CP_RB_BASE, ring_start);
586
587 /* Set the write pointer delay */
588 RADEON_WRITE(RADEON_CP_RB_WPTR_DELAY, 0);
589
590 /* Initialize the ring buffer's read and write pointers */
591 cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
592 RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
593 SET_RING_HEAD(dev_priv, cur_read_ptr);
594 dev_priv->ring.tail = cur_read_ptr;
595
596 #if __OS_HAS_AGP
597 if (dev_priv->flags & RADEON_IS_AGP) {
598 RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
599 dev_priv->ring_rptr->offset
600 - dev->agp->base + dev_priv->gart_vm_start);
601 } else
602 #endif
603 {
604 struct drm_sg_mem *entry = dev->sg;
605 unsigned long tmp_ofs, page_ofs;
606
607 tmp_ofs = dev_priv->ring_rptr->offset -
608 (unsigned long)dev->sg->virtual;
609 page_ofs = tmp_ofs >> PAGE_SHIFT;
610
611 RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR, entry->busaddr[page_ofs]);
612 DRM_DEBUG("ring rptr: offset=0x%08lx handle=0x%08lx\n",
613 (unsigned long)entry->busaddr[page_ofs],
614 entry->handle + tmp_ofs);
615 }
616
617 /* Set ring buffer size */
618 #ifdef __BIG_ENDIAN
619 RADEON_WRITE(RADEON_CP_RB_CNTL,
620 RADEON_BUF_SWAP_32BIT |
621 (dev_priv->ring.fetch_size_l2ow << 18) |
622 (dev_priv->ring.rptr_update_l2qw << 8) |
623 dev_priv->ring.size_l2qw);
624 #else
625 RADEON_WRITE(RADEON_CP_RB_CNTL,
626 (dev_priv->ring.fetch_size_l2ow << 18) |
627 (dev_priv->ring.rptr_update_l2qw << 8) |
628 dev_priv->ring.size_l2qw);
629 #endif
630
631 /* Start with assuming that writeback doesn't work */
632 dev_priv->writeback_works = 0;
633
634 /* Initialize the scratch register pointer. This will cause
635 * the scratch register values to be written out to memory
636 * whenever they are updated.
637 *
638 * We simply put this behind the ring read pointer, this works
639 * with PCI GART as well as (whatever kind of) AGP GART
640 */
641 RADEON_WRITE(RADEON_SCRATCH_ADDR, RADEON_READ(RADEON_CP_RB_RPTR_ADDR)
642 + RADEON_SCRATCH_REG_OFFSET);
643
644 dev_priv->scratch = ((__volatile__ u32 *)
645 dev_priv->ring_rptr->handle +
646 (RADEON_SCRATCH_REG_OFFSET / sizeof(u32)));
647
648 RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7);
649
650 /* Turn on bus mastering */
651 tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
652 RADEON_WRITE(RADEON_BUS_CNTL, tmp);
653
654 dev_priv->sarea_priv->last_frame = dev_priv->scratch[0] = 0;
655 RADEON_WRITE(RADEON_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);
656
657 dev_priv->sarea_priv->last_dispatch = dev_priv->scratch[1] = 0;
658 RADEON_WRITE(RADEON_LAST_DISPATCH_REG,
659 dev_priv->sarea_priv->last_dispatch);
660
661 dev_priv->sarea_priv->last_clear = dev_priv->scratch[2] = 0;
662 RADEON_WRITE(RADEON_LAST_CLEAR_REG, dev_priv->sarea_priv->last_clear);
663
664 radeon_do_wait_for_idle(dev_priv);
665
666 /* Sync everything up */
667 RADEON_WRITE(RADEON_ISYNC_CNTL,
668 (RADEON_ISYNC_ANY2D_IDLE3D |
669 RADEON_ISYNC_ANY3D_IDLE2D |
670 RADEON_ISYNC_WAIT_IDLEGUI |
671 RADEON_ISYNC_CPSCRATCH_IDLEGUI));
672
673 }
674
675 static void radeon_test_writeback(drm_radeon_private_t * dev_priv)
676 {
677 u32 tmp;
678
679 /* Writeback doesn't seem to work everywhere, test it here and possibly
680 * enable it if it appears to work
681 */
682 DRM_WRITE32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1), 0);
683 RADEON_WRITE(RADEON_SCRATCH_REG1, 0xdeadbeef);
684
685 for (tmp = 0; tmp < dev_priv->usec_timeout; tmp++) {
686 if (DRM_READ32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1)) ==
687 0xdeadbeef)
688 break;
689 DRM_UDELAY(1);
690 }
691
692 if (tmp < dev_priv->usec_timeout) {
693 dev_priv->writeback_works = 1;
694 DRM_INFO("writeback test succeeded in %d usecs\n", tmp);
695 } else {
696 dev_priv->writeback_works = 0;
697 DRM_INFO("writeback test failed\n");
698 }
699 if (radeon_no_wb == 1) {
700 dev_priv->writeback_works = 0;
701 DRM_INFO("writeback forced off\n");
702 }
703
704 if (!dev_priv->writeback_works) {
705 /* Disable writeback to avoid unnecessary bus master transfer */
706 RADEON_WRITE(RADEON_CP_RB_CNTL, RADEON_READ(RADEON_CP_RB_CNTL) |
707 RADEON_RB_NO_UPDATE);
708 RADEON_WRITE(RADEON_SCRATCH_UMSK, 0);
709 }
710 }
711
712 /* Enable or disable IGP GART on the chip */
713 static void radeon_set_igpgart(drm_radeon_private_t * dev_priv, int on)
714 {
715 u32 temp;
716
717 if (on) {
718 DRM_DEBUG("programming igp gart %08X %08lX %08X\n",
719 dev_priv->gart_vm_start,
720 (long)dev_priv->gart_info.bus_addr,
721 dev_priv->gart_size);
722
723 temp = IGP_READ_MCIND(dev_priv, RS480_MC_MISC_CNTL);
724 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690)
725 IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, (RS480_GART_INDEX_REG_EN |
726 RS690_BLOCK_GFX_D3_EN));
727 else
728 IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
729
730 IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
731 RS480_VA_SIZE_32MB));
732
733 temp = IGP_READ_MCIND(dev_priv, RS480_GART_FEATURE_ID);
734 IGP_WRITE_MCIND(RS480_GART_FEATURE_ID, (RS480_HANG_EN |
735 RS480_TLB_ENABLE |
736 RS480_GTW_LAC_EN |
737 RS480_1LEVEL_GART));
738
739 temp = dev_priv->gart_info.bus_addr & 0xfffff000;
740 temp |= (upper_32_bits(dev_priv->gart_info.bus_addr) & 0xff) << 4;
741 IGP_WRITE_MCIND(RS480_GART_BASE, temp);
742
743 temp = IGP_READ_MCIND(dev_priv, RS480_AGP_MODE_CNTL);
744 IGP_WRITE_MCIND(RS480_AGP_MODE_CNTL, ((1 << RS480_REQ_TYPE_SNOOP_SHIFT) |
745 RS480_REQ_TYPE_SNOOP_DIS));
746
747 radeon_write_agp_base(dev_priv, dev_priv->gart_vm_start);
748
749 dev_priv->gart_size = 32*1024*1024;
750 temp = (((dev_priv->gart_vm_start - 1 + dev_priv->gart_size) &
751 0xffff0000) | (dev_priv->gart_vm_start >> 16));
752
753 radeon_write_agp_location(dev_priv, temp);
754
755 temp = IGP_READ_MCIND(dev_priv, RS480_AGP_ADDRESS_SPACE_SIZE);
756 IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
757 RS480_VA_SIZE_32MB));
758
759 do {
760 temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
761 if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
762 break;
763 DRM_UDELAY(1);
764 } while (1);
765
766 IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL,
767 RS480_GART_CACHE_INVALIDATE);
768
769 do {
770 temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
771 if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
772 break;
773 DRM_UDELAY(1);
774 } while (1);
775
776 IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL, 0);
777 } else {
778 IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
779 }
780 }
781
782 static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
783 {
784 u32 tmp = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_TX_GART_CNTL);
785 if (on) {
786
787 DRM_DEBUG("programming pcie %08X %08lX %08X\n",
788 dev_priv->gart_vm_start,
789 (long)dev_priv->gart_info.bus_addr,
790 dev_priv->gart_size);
791 RADEON_WRITE_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO,
792 dev_priv->gart_vm_start);
793 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_BASE,
794 dev_priv->gart_info.bus_addr);
795 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_START_LO,
796 dev_priv->gart_vm_start);
797 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_END_LO,
798 dev_priv->gart_vm_start +
799 dev_priv->gart_size - 1);
800
801 radeon_write_agp_location(dev_priv, 0xffffffc0); /* ?? */
802
803 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
804 RADEON_PCIE_TX_GART_EN);
805 } else {
806 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
807 tmp & ~RADEON_PCIE_TX_GART_EN);
808 }
809 }
810
811 /* Enable or disable PCI GART on the chip */
812 static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
813 {
814 u32 tmp;
815
816 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
817 (dev_priv->flags & RADEON_IS_IGPGART)) {
818 radeon_set_igpgart(dev_priv, on);
819 return;
820 }
821
822 if (dev_priv->flags & RADEON_IS_PCIE) {
823 radeon_set_pciegart(dev_priv, on);
824 return;
825 }
826
827 tmp = RADEON_READ(RADEON_AIC_CNTL);
828
829 if (on) {
830 RADEON_WRITE(RADEON_AIC_CNTL,
831 tmp | RADEON_PCIGART_TRANSLATE_EN);
832
833 /* set PCI GART page-table base address
834 */
835 RADEON_WRITE(RADEON_AIC_PT_BASE, dev_priv->gart_info.bus_addr);
836
837 /* set address range for PCI address translate
838 */
839 RADEON_WRITE(RADEON_AIC_LO_ADDR, dev_priv->gart_vm_start);
840 RADEON_WRITE(RADEON_AIC_HI_ADDR, dev_priv->gart_vm_start
841 + dev_priv->gart_size - 1);
842
843 /* Turn off AGP aperture -- is this required for PCI GART?
844 */
845 radeon_write_agp_location(dev_priv, 0xffffffc0);
846 RADEON_WRITE(RADEON_AGP_COMMAND, 0); /* clear AGP_COMMAND */
847 } else {
848 RADEON_WRITE(RADEON_AIC_CNTL,
849 tmp & ~RADEON_PCIGART_TRANSLATE_EN);
850 }
851 }
852
853 static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init)
854 {
855 drm_radeon_private_t *dev_priv = dev->dev_private;
856
857 DRM_DEBUG("\n");
858
859 /* if we require new memory map but we don't have it fail */
860 if ((dev_priv->flags & RADEON_NEW_MEMMAP) && !dev_priv->new_memmap) {
861 DRM_ERROR("Cannot initialise DRM on this card\nThis card requires a new X.org DDX for 3D\n");
862 radeon_do_cleanup_cp(dev);
863 return -EINVAL;
864 }
865
866 if (init->is_pci && (dev_priv->flags & RADEON_IS_AGP)) {
867 DRM_DEBUG("Forcing AGP card to PCI mode\n");
868 dev_priv->flags &= ~RADEON_IS_AGP;
869 } else if (!(dev_priv->flags & (RADEON_IS_AGP | RADEON_IS_PCI | RADEON_IS_PCIE))
870 && !init->is_pci) {
871 DRM_DEBUG("Restoring AGP flag\n");
872 dev_priv->flags |= RADEON_IS_AGP;
873 }
874
875 if ((!(dev_priv->flags & RADEON_IS_AGP)) && !dev->sg) {
876 DRM_ERROR("PCI GART memory not allocated!\n");
877 radeon_do_cleanup_cp(dev);
878 return -EINVAL;
879 }
880
881 dev_priv->usec_timeout = init->usec_timeout;
882 if (dev_priv->usec_timeout < 1 ||
883 dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT) {
884 DRM_DEBUG("TIMEOUT problem!\n");
885 radeon_do_cleanup_cp(dev);
886 return -EINVAL;
887 }
888
889 /* Enable vblank on CRTC1 for older X servers
890 */
891 dev_priv->vblank_crtc = DRM_RADEON_VBLANK_CRTC1;
892
893 switch(init->func) {
894 case RADEON_INIT_R200_CP:
895 dev_priv->microcode_version = UCODE_R200;
896 break;
897 case RADEON_INIT_R300_CP:
898 dev_priv->microcode_version = UCODE_R300;
899 break;
900 default:
901 dev_priv->microcode_version = UCODE_R100;
902 }
903
904 dev_priv->do_boxes = 0;
905 dev_priv->cp_mode = init->cp_mode;
906
907 /* We don't support anything other than bus-mastering ring mode,
908 * but the ring can be in either AGP or PCI space for the ring
909 * read pointer.
910 */
911 if ((init->cp_mode != RADEON_CSQ_PRIBM_INDDIS) &&
912 (init->cp_mode != RADEON_CSQ_PRIBM_INDBM)) {
913 DRM_DEBUG("BAD cp_mode (%x)!\n", init->cp_mode);
914 radeon_do_cleanup_cp(dev);
915 return -EINVAL;
916 }
917
918 switch (init->fb_bpp) {
919 case 16:
920 dev_priv->color_fmt = RADEON_COLOR_FORMAT_RGB565;
921 break;
922 case 32:
923 default:
924 dev_priv->color_fmt = RADEON_COLOR_FORMAT_ARGB8888;
925 break;
926 }
927 dev_priv->front_offset = init->front_offset;
928 dev_priv->front_pitch = init->front_pitch;
929 dev_priv->back_offset = init->back_offset;
930 dev_priv->back_pitch = init->back_pitch;
931
932 switch (init->depth_bpp) {
933 case 16:
934 dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_16BIT_INT_Z;
935 break;
936 case 32:
937 default:
938 dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_24BIT_INT_Z;
939 break;
940 }
941 dev_priv->depth_offset = init->depth_offset;
942 dev_priv->depth_pitch = init->depth_pitch;
943
944 /* Hardware state for depth clears. Remove this if/when we no
945 * longer clear the depth buffer with a 3D rectangle. Hard-code
946 * all values to prevent unwanted 3D state from slipping through
947 * and screwing with the clear operation.
948 */
949 dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
950 (dev_priv->color_fmt << 10) |
951 (dev_priv->microcode_version ==
952 UCODE_R100 ? RADEON_ZBLOCK16 : 0));
953
954 dev_priv->depth_clear.rb3d_zstencilcntl =
955 (dev_priv->depth_fmt |
956 RADEON_Z_TEST_ALWAYS |
957 RADEON_STENCIL_TEST_ALWAYS |
958 RADEON_STENCIL_S_FAIL_REPLACE |
959 RADEON_STENCIL_ZPASS_REPLACE |
960 RADEON_STENCIL_ZFAIL_REPLACE | RADEON_Z_WRITE_ENABLE);
961
962 dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
963 RADEON_BFACE_SOLID |
964 RADEON_FFACE_SOLID |
965 RADEON_FLAT_SHADE_VTX_LAST |
966 RADEON_DIFFUSE_SHADE_FLAT |
967 RADEON_ALPHA_SHADE_FLAT |
968 RADEON_SPECULAR_SHADE_FLAT |
969 RADEON_FOG_SHADE_FLAT |
970 RADEON_VTX_PIX_CENTER_OGL |
971 RADEON_ROUND_MODE_TRUNC |
972 RADEON_ROUND_PREC_8TH_PIX);
973
974
975 dev_priv->ring_offset = init->ring_offset;
976 dev_priv->ring_rptr_offset = init->ring_rptr_offset;
977 dev_priv->buffers_offset = init->buffers_offset;
978 dev_priv->gart_textures_offset = init->gart_textures_offset;
979
980 dev_priv->sarea = drm_getsarea(dev);
981 if (!dev_priv->sarea) {
982 DRM_ERROR("could not find sarea!\n");
983 radeon_do_cleanup_cp(dev);
984 return -EINVAL;
985 }
986
987 dev_priv->cp_ring = drm_core_findmap(dev, init->ring_offset);
988 if (!dev_priv->cp_ring) {
989 DRM_ERROR("could not find cp ring region!\n");
990 radeon_do_cleanup_cp(dev);
991 return -EINVAL;
992 }
993 dev_priv->ring_rptr = drm_core_findmap(dev, init->ring_rptr_offset);
994 if (!dev_priv->ring_rptr) {
995 DRM_ERROR("could not find ring read pointer!\n");
996 radeon_do_cleanup_cp(dev);
997 return -EINVAL;
998 }
999 dev->agp_buffer_token = init->buffers_offset;
1000 dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
1001 if (!dev->agp_buffer_map) {
1002 DRM_ERROR("could not find dma buffer region!\n");
1003 radeon_do_cleanup_cp(dev);
1004 return -EINVAL;
1005 }
1006
1007 if (init->gart_textures_offset) {
1008 dev_priv->gart_textures =
1009 drm_core_findmap(dev, init->gart_textures_offset);
1010 if (!dev_priv->gart_textures) {
1011 DRM_ERROR("could not find GART texture region!\n");
1012 radeon_do_cleanup_cp(dev);
1013 return -EINVAL;
1014 }
1015 }
1016
1017 dev_priv->sarea_priv =
1018 (drm_radeon_sarea_t *) ((u8 *) dev_priv->sarea->handle +
1019 init->sarea_priv_offset);
1020
1021 #if __OS_HAS_AGP
1022 if (dev_priv->flags & RADEON_IS_AGP) {
1023 drm_core_ioremap(dev_priv->cp_ring, dev);
1024 drm_core_ioremap(dev_priv->ring_rptr, dev);
1025 drm_core_ioremap(dev->agp_buffer_map, dev);
1026 if (!dev_priv->cp_ring->handle ||
1027 !dev_priv->ring_rptr->handle ||
1028 !dev->agp_buffer_map->handle) {
1029 DRM_ERROR("could not find ioremap agp regions!\n");
1030 radeon_do_cleanup_cp(dev);
1031 return -EINVAL;
1032 }
1033 } else
1034 #endif
1035 {
1036 dev_priv->cp_ring->handle = (void *)dev_priv->cp_ring->offset;
1037 dev_priv->ring_rptr->handle =
1038 (void *)dev_priv->ring_rptr->offset;
1039 dev->agp_buffer_map->handle =
1040 (void *)dev->agp_buffer_map->offset;
1041
1042 DRM_DEBUG("dev_priv->cp_ring->handle %p\n",
1043 dev_priv->cp_ring->handle);
1044 DRM_DEBUG("dev_priv->ring_rptr->handle %p\n",
1045 dev_priv->ring_rptr->handle);
1046 DRM_DEBUG("dev->agp_buffer_map->handle %p\n",
1047 dev->agp_buffer_map->handle);
1048 }
1049
1050 dev_priv->fb_location = (radeon_read_fb_location(dev_priv) & 0xffff) << 16;
1051 dev_priv->fb_size =
1052 ((radeon_read_fb_location(dev_priv) & 0xffff0000u) + 0x10000)
1053 - dev_priv->fb_location;
1054
1055 dev_priv->front_pitch_offset = (((dev_priv->front_pitch / 64) << 22) |
1056 ((dev_priv->front_offset
1057 + dev_priv->fb_location) >> 10));
1058
1059 dev_priv->back_pitch_offset = (((dev_priv->back_pitch / 64) << 22) |
1060 ((dev_priv->back_offset
1061 + dev_priv->fb_location) >> 10));
1062
1063 dev_priv->depth_pitch_offset = (((dev_priv->depth_pitch / 64) << 22) |
1064 ((dev_priv->depth_offset
1065 + dev_priv->fb_location) >> 10));
1066
1067 dev_priv->gart_size = init->gart_size;
1068
1069 /* New let's set the memory map ... */
1070 if (dev_priv->new_memmap) {
1071 u32 base = 0;
1072
1073 DRM_INFO("Setting GART location based on new memory map\n");
1074
1075 /* If using AGP, try to locate the AGP aperture at the same
1076 * location in the card and on the bus, though we have to
1077 * align it down.
1078 */
1079 #if __OS_HAS_AGP
1080 if (dev_priv->flags & RADEON_IS_AGP) {
1081 base = dev->agp->base;
1082 /* Check if valid */
1083 if ((base + dev_priv->gart_size - 1) >= dev_priv->fb_location &&
1084 base < (dev_priv->fb_location + dev_priv->fb_size - 1)) {
1085 DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n",
1086 dev->agp->base);
1087 base = 0;
1088 }
1089 }
1090 #endif
1091 /* If not or if AGP is at 0 (Macs), try to put it elsewhere */
1092 if (base == 0) {
1093 base = dev_priv->fb_location + dev_priv->fb_size;
1094 if (base < dev_priv->fb_location ||
1095 ((base + dev_priv->gart_size) & 0xfffffffful) < base)
1096 base = dev_priv->fb_location
1097 - dev_priv->gart_size;
1098 }
1099 dev_priv->gart_vm_start = base & 0xffc00000u;
1100 if (dev_priv->gart_vm_start != base)
1101 DRM_INFO("GART aligned down from 0x%08x to 0x%08x\n",
1102 base, dev_priv->gart_vm_start);
1103 } else {
1104 DRM_INFO("Setting GART location based on old memory map\n");
1105 dev_priv->gart_vm_start = dev_priv->fb_location +
1106 RADEON_READ(RADEON_CONFIG_APER_SIZE);
1107 }
1108
1109 #if __OS_HAS_AGP
1110 if (dev_priv->flags & RADEON_IS_AGP)
1111 dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
1112 - dev->agp->base
1113 + dev_priv->gart_vm_start);
1114 else
1115 #endif
1116 dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
1117 - (unsigned long)dev->sg->virtual
1118 + dev_priv->gart_vm_start);
1119
1120 DRM_DEBUG("dev_priv->gart_size %d\n", dev_priv->gart_size);
1121 DRM_DEBUG("dev_priv->gart_vm_start 0x%x\n", dev_priv->gart_vm_start);
1122 DRM_DEBUG("dev_priv->gart_buffers_offset 0x%lx\n",
1123 dev_priv->gart_buffers_offset);
1124
1125 dev_priv->ring.start = (u32 *) dev_priv->cp_ring->handle;
1126 dev_priv->ring.end = ((u32 *) dev_priv->cp_ring->handle
1127 + init->ring_size / sizeof(u32));
1128 dev_priv->ring.size = init->ring_size;
1129 dev_priv->ring.size_l2qw = drm_order(init->ring_size / 8);
1130
1131 dev_priv->ring.rptr_update = /* init->rptr_update */ 4096;
1132 dev_priv->ring.rptr_update_l2qw = drm_order( /* init->rptr_update */ 4096 / 8);
1133
1134 dev_priv->ring.fetch_size = /* init->fetch_size */ 32;
1135 dev_priv->ring.fetch_size_l2ow = drm_order( /* init->fetch_size */ 32 / 16);
1136 dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;
1137
1138 dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK;
1139
1140 #if __OS_HAS_AGP
1141 if (dev_priv->flags & RADEON_IS_AGP) {
1142 /* Turn off PCI GART */
1143 radeon_set_pcigart(dev_priv, 0);
1144 } else
1145 #endif
1146 {
1147 dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
1148 /* if we have an offset set from userspace */
1149 if (dev_priv->pcigart_offset_set) {
1150 dev_priv->gart_info.bus_addr =
1151 dev_priv->pcigart_offset + dev_priv->fb_location;
1152 dev_priv->gart_info.mapping.offset =
1153 dev_priv->pcigart_offset + dev_priv->fb_aper_offset;
1154 dev_priv->gart_info.mapping.size =
1155 dev_priv->gart_info.table_size;
1156
1157 drm_core_ioremap(&dev_priv->gart_info.mapping, dev);
1158 dev_priv->gart_info.addr =
1159 dev_priv->gart_info.mapping.handle;
1160
1161 if (dev_priv->flags & RADEON_IS_PCIE)
1162 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCIE;
1163 else
1164 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
1165 dev_priv->gart_info.gart_table_location =
1166 DRM_ATI_GART_FB;
1167
1168 DRM_DEBUG("Setting phys_pci_gart to %p %08lX\n",
1169 dev_priv->gart_info.addr,
1170 dev_priv->pcigart_offset);
1171 } else {
1172 if (dev_priv->flags & RADEON_IS_IGPGART)
1173 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_IGP;
1174 else
1175 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
1176 dev_priv->gart_info.gart_table_location =
1177 DRM_ATI_GART_MAIN;
1178 dev_priv->gart_info.addr = NULL;
1179 dev_priv->gart_info.bus_addr = 0;
1180 if (dev_priv->flags & RADEON_IS_PCIE) {
1181 DRM_ERROR
1182 ("Cannot use PCI Express without GART in FB memory\n");
1183 radeon_do_cleanup_cp(dev);
1184 return -EINVAL;
1185 }
1186 }
1187
1188 if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {
1189 DRM_ERROR("failed to init PCI GART!\n");
1190 radeon_do_cleanup_cp(dev);
1191 return -ENOMEM;
1192 }
1193
1194 /* Turn on PCI GART */
1195 radeon_set_pcigart(dev_priv, 1);
1196 }
1197
1198 radeon_cp_load_microcode(dev_priv);
1199 radeon_cp_init_ring_buffer(dev, dev_priv);
1200
1201 dev_priv->last_buf = 0;
1202
1203 radeon_do_engine_reset(dev);
1204 radeon_test_writeback(dev_priv);
1205
1206 return 0;
1207 }
1208
1209 static int radeon_do_cleanup_cp(struct drm_device * dev)
1210 {
1211 drm_radeon_private_t *dev_priv = dev->dev_private;
1212 DRM_DEBUG("\n");
1213
1214 /* Make sure interrupts are disabled here because the uninstall ioctl
1215 * may not have been called from userspace and after dev_private
1216 * is freed, it's too late.
1217 */
1218 if (dev->irq_enabled)
1219 drm_irq_uninstall(dev);
1220
1221 #if __OS_HAS_AGP
1222 if (dev_priv->flags & RADEON_IS_AGP) {
1223 if (dev_priv->cp_ring != NULL) {
1224 drm_core_ioremapfree(dev_priv->cp_ring, dev);
1225 dev_priv->cp_ring = NULL;
1226 }
1227 if (dev_priv->ring_rptr != NULL) {
1228 drm_core_ioremapfree(dev_priv->ring_rptr, dev);
1229 dev_priv->ring_rptr = NULL;
1230 }
1231 if (dev->agp_buffer_map != NULL) {
1232 drm_core_ioremapfree(dev->agp_buffer_map, dev);
1233 dev->agp_buffer_map = NULL;
1234 }
1235 } else
1236 #endif
1237 {
1238
1239 if (dev_priv->gart_info.bus_addr) {
1240 /* Turn off PCI GART */
1241 radeon_set_pcigart(dev_priv, 0);
1242 if (!drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info))
1243 DRM_ERROR("failed to cleanup PCI GART!\n");
1244 }
1245
1246 if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB)
1247 {
1248 drm_core_ioremapfree(&dev_priv->gart_info.mapping, dev);
1249 dev_priv->gart_info.addr = 0;
1250 }
1251 }
1252 /* only clear to the start of flags */
1253 memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));
1254
1255 return 0;
1256 }
1257
1258 /* This code will reinit the Radeon CP hardware after a resume from disc.
1259 * AFAIK, it would be very difficult to pickle the state at suspend time, so
1260 * here we make sure that all Radeon hardware initialisation is re-done without
1261 * affecting running applications.
1262 *
1263 * Charl P. Botha <http://cpbotha.net>
1264 */
1265 static int radeon_do_resume_cp(struct drm_device * dev)
1266 {
1267 drm_radeon_private_t *dev_priv = dev->dev_private;
1268
1269 if (!dev_priv) {
1270 DRM_ERROR("Called with no initialization\n");
1271 return -EINVAL;
1272 }
1273
1274 DRM_DEBUG("Starting radeon_do_resume_cp()\n");
1275
1276 #if __OS_HAS_AGP
1277 if (dev_priv->flags & RADEON_IS_AGP) {
1278 /* Turn off PCI GART */
1279 radeon_set_pcigart(dev_priv, 0);
1280 } else
1281 #endif
1282 {
1283 /* Turn on PCI GART */
1284 radeon_set_pcigart(dev_priv, 1);
1285 }
1286
1287 radeon_cp_load_microcode(dev_priv);
1288 radeon_cp_init_ring_buffer(dev, dev_priv);
1289
1290 radeon_do_engine_reset(dev);
1291 radeon_enable_interrupt(dev);
1292
1293 DRM_DEBUG("radeon_do_resume_cp() complete\n");
1294
1295 return 0;
1296 }
1297
1298 int radeon_cp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
1299 {
1300 drm_radeon_init_t *init = data;
1301
1302 LOCK_TEST_WITH_RETURN(dev, file_priv);
1303
1304 if (init->func == RADEON_INIT_R300_CP)
1305 r300_init_reg_flags(dev);
1306
1307 switch (init->func) {
1308 case RADEON_INIT_CP:
1309 case RADEON_INIT_R200_CP:
1310 case RADEON_INIT_R300_CP:
1311 return radeon_do_init_cp(dev, init);
1312 case RADEON_CLEANUP_CP:
1313 return radeon_do_cleanup_cp(dev);
1314 }
1315
1316 return -EINVAL;
1317 }
1318
1319 int radeon_cp_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
1320 {
1321 drm_radeon_private_t *dev_priv = dev->dev_private;
1322 DRM_DEBUG("\n");
1323
1324 LOCK_TEST_WITH_RETURN(dev, file_priv);
1325
1326 if (dev_priv->cp_running) {
1327 DRM_DEBUG("while CP running\n");
1328 return 0;
1329 }
1330 if (dev_priv->cp_mode == RADEON_CSQ_PRIDIS_INDDIS) {
1331 DRM_DEBUG("called with bogus CP mode (%d)\n",
1332 dev_priv->cp_mode);
1333 return 0;
1334 }
1335
1336 radeon_do_cp_start(dev_priv);
1337
1338 return 0;
1339 }
1340
1341 /* Stop the CP. The engine must have been idled before calling this
1342 * routine.
1343 */
1344 int radeon_cp_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
1345 {
1346 drm_radeon_private_t *dev_priv = dev->dev_private;
1347 drm_radeon_cp_stop_t *stop = data;
1348 int ret;
1349 DRM_DEBUG("\n");
1350
1351 LOCK_TEST_WITH_RETURN(dev, file_priv);
1352
1353 if (!dev_priv->cp_running)
1354 return 0;
1355
1356 /* Flush any pending CP commands. This ensures any outstanding
1357 * commands are exectuted by the engine before we turn it off.
1358 */
1359 if (stop->flush) {
1360 radeon_do_cp_flush(dev_priv);
1361 }
1362
1363 /* If we fail to make the engine go idle, we return an error
1364 * code so that the DRM ioctl wrapper can try again.
1365 */
1366 if (stop->idle) {
1367 ret = radeon_do_cp_idle(dev_priv);
1368 if (ret)
1369 return ret;
1370 }
1371
1372 /* Finally, we can turn off the CP. If the engine isn't idle,
1373 * we will get some dropped triangles as they won't be fully
1374 * rendered before the CP is shut down.
1375 */
1376 radeon_do_cp_stop(dev_priv);
1377
1378 /* Reset the engine */
1379 radeon_do_engine_reset(dev);
1380
1381 return 0;
1382 }
1383
1384 void radeon_do_release(struct drm_device * dev)
1385 {
1386 drm_radeon_private_t *dev_priv = dev->dev_private;
1387 int i, ret;
1388
1389 if (dev_priv) {
1390 if (dev_priv->cp_running) {
1391 /* Stop the cp */
1392 while ((ret = radeon_do_cp_idle(dev_priv)) != 0) {
1393 DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
1394 #ifdef __linux__
1395 schedule();
1396 #else
1397 tsleep(&ret, PZERO, "rdnrel", 1);
1398 #endif
1399 }
1400 radeon_do_cp_stop(dev_priv);
1401 radeon_do_engine_reset(dev);
1402 }
1403
1404 /* Disable *all* interrupts */
1405 if (dev_priv->mmio) /* remove this after permanent addmaps */
1406 RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
1407
1408 if (dev_priv->mmio) { /* remove all surfaces */
1409 for (i = 0; i < RADEON_MAX_SURFACES; i++) {
1410 RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, 0);
1411 RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND +
1412 16 * i, 0);
1413 RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND +
1414 16 * i, 0);
1415 }
1416 }
1417
1418 /* Free memory heap structures */
1419 radeon_mem_takedown(&(dev_priv->gart_heap));
1420 radeon_mem_takedown(&(dev_priv->fb_heap));
1421
1422 /* deallocate kernel resources */
1423 radeon_do_cleanup_cp(dev);
1424 }
1425 }
1426
1427 /* Just reset the CP ring. Called as part of an X Server engine reset.
1428 */
1429 int radeon_cp_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
1430 {
1431 drm_radeon_private_t *dev_priv = dev->dev_private;
1432 DRM_DEBUG("\n");
1433
1434 LOCK_TEST_WITH_RETURN(dev, file_priv);
1435
1436 if (!dev_priv) {
1437 DRM_DEBUG("called before init done\n");
1438 return -EINVAL;
1439 }
1440
1441 radeon_do_cp_reset(dev_priv);
1442
1443 /* The CP is no longer running after an engine reset */
1444 dev_priv->cp_running = 0;
1445
1446 return 0;
1447 }
1448
1449 int radeon_cp_idle(struct drm_device *dev, void *data, struct drm_file *file_priv)
1450 {
1451 drm_radeon_private_t *dev_priv = dev->dev_private;
1452 DRM_DEBUG("\n");
1453
1454 LOCK_TEST_WITH_RETURN(dev, file_priv);
1455
1456 return radeon_do_cp_idle(dev_priv);
1457 }
1458
1459 /* Added by Charl P. Botha to call radeon_do_resume_cp().
1460 */
1461 int radeon_cp_resume(struct drm_device *dev, void *data, struct drm_file *file_priv)
1462 {
1463
1464 return radeon_do_resume_cp(dev);
1465 }
1466
1467 int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
1468 {
1469 DRM_DEBUG("\n");
1470
1471 LOCK_TEST_WITH_RETURN(dev, file_priv);
1472
1473 return radeon_do_engine_reset(dev);
1474 }
1475
1476 /* ================================================================
1477 * Fullscreen mode
1478 */
1479
1480 /* KW: Deprecated to say the least:
1481 */
1482 int radeon_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv)
1483 {
1484 return 0;
1485 }
1486
1487 /* ================================================================
1488 * Freelist management
1489 */
1490
1491 /* Original comment: FIXME: ROTATE_BUFS is a hack to cycle through
1492 * bufs until freelist code is used. Note this hides a problem with
1493 * the scratch register * (used to keep track of last buffer
1494 * completed) being written to before * the last buffer has actually
1495 * completed rendering.
1496 *
1497 * KW: It's also a good way to find free buffers quickly.
1498 *
1499 * KW: Ideally this loop wouldn't exist, and freelist_get wouldn't
1500 * sleep. However, bugs in older versions of radeon_accel.c mean that
1501 * we essentially have to do this, else old clients will break.
1502 *
1503 * However, it does leave open a potential deadlock where all the
1504 * buffers are held by other clients, which can't release them because
1505 * they can't get the lock.
1506 */
1507
1508 struct drm_buf *radeon_freelist_get(struct drm_device * dev)
1509 {
1510 struct drm_device_dma *dma = dev->dma;
1511 drm_radeon_private_t *dev_priv = dev->dev_private;
1512 drm_radeon_buf_priv_t *buf_priv;
1513 struct drm_buf *buf;
1514 int i, t;
1515 int start;
1516
1517 if (++dev_priv->last_buf >= dma->buf_count)
1518 dev_priv->last_buf = 0;
1519
1520 start = dev_priv->last_buf;
1521
1522 for (t = 0; t < dev_priv->usec_timeout; t++) {
1523 u32 done_age = GET_SCRATCH(1);
1524 DRM_DEBUG("done_age = %d\n", done_age);
1525 for (i = start; i < dma->buf_count; i++) {
1526 buf = dma->buflist[i];
1527 buf_priv = buf->dev_private;
1528 if (buf->file_priv == NULL || (buf->pending &&
1529 buf_priv->age <=
1530 done_age)) {
1531 dev_priv->stats.requested_bufs++;
1532 buf->pending = 0;
1533 return buf;
1534 }
1535 start = 0;
1536 }
1537
1538 if (t) {
1539 DRM_UDELAY(1);
1540 dev_priv->stats.freelist_loops++;
1541 }
1542 }
1543
1544 DRM_DEBUG("returning NULL!\n");
1545 return NULL;
1546 }
1547
1548 #if 0
1549 struct drm_buf *radeon_freelist_get(struct drm_device * dev)
1550 {
1551 struct drm_device_dma *dma = dev->dma;
1552 drm_radeon_private_t *dev_priv = dev->dev_private;
1553 drm_radeon_buf_priv_t *buf_priv;
1554 struct drm_buf *buf;
1555 int i, t;
1556 int start;
1557 u32 done_age = DRM_READ32(dev_priv->ring_rptr, RADEON_SCRATCHOFF(1));
1558
1559 if (++dev_priv->last_buf >= dma->buf_count)
1560 dev_priv->last_buf = 0;
1561
1562 start = dev_priv->last_buf;
1563 dev_priv->stats.freelist_loops++;
1564
1565 for (t = 0; t < 2; t++) {
1566 for (i = start; i < dma->buf_count; i++) {
1567 buf = dma->buflist[i];
1568 buf_priv = buf->dev_private;
1569 if (buf->file_priv == 0 || (buf->pending &&
1570 buf_priv->age <=
1571 done_age)) {
1572 dev_priv->stats.requested_bufs++;
1573 buf->pending = 0;
1574 return buf;
1575 }
1576 }
1577 start = 0;
1578 }
1579
1580 return NULL;
1581 }
1582 #endif
1583
1584 void radeon_freelist_reset(struct drm_device * dev)
1585 {
1586 struct drm_device_dma *dma = dev->dma;
1587 drm_radeon_private_t *dev_priv = dev->dev_private;
1588 int i;
1589
1590 dev_priv->last_buf = 0;
1591 for (i = 0; i < dma->buf_count; i++) {
1592 struct drm_buf *buf = dma->buflist[i];
1593 drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
1594 buf_priv->age = 0;
1595 }
1596 }
1597
1598 /* ================================================================
1599 * CP command submission
1600 */
1601
1602 int radeon_wait_ring(drm_radeon_private_t * dev_priv, int n)
1603 {
1604 drm_radeon_ring_buffer_t *ring = &dev_priv->ring;
1605 int i;
1606 u32 last_head = GET_RING_HEAD(dev_priv);
1607
1608 for (i = 0; i < dev_priv->usec_timeout; i++) {
1609 u32 head = GET_RING_HEAD(dev_priv);
1610
1611 ring->space = (head - ring->tail) * sizeof(u32);
1612 if (ring->space <= 0)
1613 ring->space += ring->size;
1614 if (ring->space > n)
1615 return 0;
1616
1617 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
1618
1619 if (head != last_head)
1620 i = 0;
1621 last_head = head;
1622
1623 DRM_UDELAY(1);
1624 }
1625
1626 /* FIXME: This return value is ignored in the BEGIN_RING macro! */
1627 #if RADEON_FIFO_DEBUG
1628 radeon_status(dev_priv);
1629 DRM_ERROR("failed!\n");
1630 #endif
1631 return -EBUSY;
1632 }
1633
1634 static int radeon_cp_get_buffers(struct drm_device *dev,
1635 struct drm_file *file_priv,
1636 struct drm_dma * d)
1637 {
1638 int i;
1639 struct drm_buf *buf;
1640
1641 for (i = d->granted_count; i < d->request_count; i++) {
1642 buf = radeon_freelist_get(dev);
1643 if (!buf)
1644 return -EBUSY; /* NOTE: broken client */
1645
1646 buf->file_priv = file_priv;
1647
1648 if (DRM_COPY_TO_USER(&d->request_indices[i], &buf->idx,
1649 sizeof(buf->idx)))
1650 return -EFAULT;
1651 if (DRM_COPY_TO_USER(&d->request_sizes[i], &buf->total,
1652 sizeof(buf->total)))
1653 return -EFAULT;
1654
1655 d->granted_count++;
1656 }
1657 return 0;
1658 }
1659
1660 int radeon_cp_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
1661 {
1662 struct drm_device_dma *dma = dev->dma;
1663 int ret = 0;
1664 struct drm_dma *d = data;
1665
1666 LOCK_TEST_WITH_RETURN(dev, file_priv);
1667
1668 /* Please don't send us buffers.
1669 */
1670 if (d->send_count != 0) {
1671 DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
1672 DRM_CURRENTPID, d->send_count);
1673 return -EINVAL;
1674 }
1675
1676 /* We'll send you buffers.
1677 */
1678 if (d->request_count < 0 || d->request_count > dma->buf_count) {
1679 DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
1680 DRM_CURRENTPID, d->request_count, dma->buf_count);
1681 return -EINVAL;
1682 }
1683
1684 d->granted_count = 0;
1685
1686 if (d->request_count) {
1687 ret = radeon_cp_get_buffers(dev, file_priv, d);
1688 }
1689
1690 return ret;
1691 }
1692
1693 int radeon_driver_load(struct drm_device *dev, unsigned long flags)
1694 {
1695 drm_radeon_private_t *dev_priv;
1696 int ret = 0;
1697
1698 dev_priv = drm_alloc(sizeof(drm_radeon_private_t), DRM_MEM_DRIVER);
1699 if (dev_priv == NULL)
1700 return -ENOMEM;
1701
1702 memset(dev_priv, 0, sizeof(drm_radeon_private_t));
1703 dev->dev_private = (void *)dev_priv;
1704 dev_priv->flags = flags;
1705
1706 switch (flags & RADEON_FAMILY_MASK) {
1707 case CHIP_R100:
1708 case CHIP_RV200:
1709 case CHIP_R200:
1710 case CHIP_R300:
1711 case CHIP_R350:
1712 case CHIP_R420:
1713 case CHIP_RV410:
1714 case CHIP_RV515:
1715 case CHIP_R520:
1716 case CHIP_RV570:
1717 case CHIP_R580:
1718 dev_priv->flags |= RADEON_HAS_HIERZ;
1719 break;
1720 default:
1721 /* all other chips have no hierarchical z buffer */
1722 break;
1723 }
1724
1725 if (drm_device_is_agp(dev))
1726 dev_priv->flags |= RADEON_IS_AGP;
1727 else if (drm_device_is_pcie(dev))
1728 dev_priv->flags |= RADEON_IS_PCIE;
1729 else
1730 dev_priv->flags |= RADEON_IS_PCI;
1731
1732 DRM_DEBUG("%s card detected\n",
1733 ((dev_priv->flags & RADEON_IS_AGP) ? "AGP" : (((dev_priv->flags & RADEON_IS_PCIE) ? "PCIE" : "PCI"))));
1734 return ret;
1735 }
1736
1737 /* Create mappings for registers and framebuffer so userland doesn't necessarily
1738 * have to find them.
1739 */
1740 int radeon_driver_firstopen(struct drm_device *dev)
1741 {
1742 int ret;
1743 drm_local_map_t *map;
1744 drm_radeon_private_t *dev_priv = dev->dev_private;
1745
1746 dev_priv->gart_info.table_size = RADEON_PCIGART_TABLE_SIZE;
1747
1748 ret = drm_addmap(dev, drm_get_resource_start(dev, 2),
1749 drm_get_resource_len(dev, 2), _DRM_REGISTERS,
1750 _DRM_READ_ONLY, &dev_priv->mmio);
1751 if (ret != 0)
1752 return ret;
1753
1754 dev_priv->fb_aper_offset = drm_get_resource_start(dev, 0);
1755 ret = drm_addmap(dev, dev_priv->fb_aper_offset,
1756 drm_get_resource_len(dev, 0), _DRM_FRAME_BUFFER,
1757 _DRM_WRITE_COMBINING, &map);
1758 if (ret != 0)
1759 return ret;
1760
1761 return 0;
1762 }
1763
1764 int radeon_driver_unload(struct drm_device *dev)
1765 {
1766 drm_radeon_private_t *dev_priv = dev->dev_private;
1767
1768 DRM_DEBUG("\n");
1769 drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
1770
1771 dev->dev_private = NULL;
1772 return 0;
1773 }
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