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drm/radeon: r6xx/r7xx possible security issue, system ram access
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / gpu / drm / radeon / radeon_cp.c
blob06123ba31d31ff564ea4224a2f0de56e87cdbf53
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 "drm_sarea.h"
35 #include "radeon_drm.h"
36 #include "radeon_drv.h"
37 #include "r300_reg.h"
38
39 #define RADEON_FIFO_DEBUG 0
40
41 /* Firmware Names */
42 #define FIRMWARE_R100 "radeon/R100_cp.bin"
43 #define FIRMWARE_R200 "radeon/R200_cp.bin"
44 #define FIRMWARE_R300 "radeon/R300_cp.bin"
45 #define FIRMWARE_R420 "radeon/R420_cp.bin"
46 #define FIRMWARE_RS690 "radeon/RS690_cp.bin"
47 #define FIRMWARE_RS600 "radeon/RS600_cp.bin"
48 #define FIRMWARE_R520 "radeon/R520_cp.bin"
49
50 MODULE_FIRMWARE(FIRMWARE_R100);
51 MODULE_FIRMWARE(FIRMWARE_R200);
52 MODULE_FIRMWARE(FIRMWARE_R300);
53 MODULE_FIRMWARE(FIRMWARE_R420);
54 MODULE_FIRMWARE(FIRMWARE_RS690);
55 MODULE_FIRMWARE(FIRMWARE_RS600);
56 MODULE_FIRMWARE(FIRMWARE_R520);
57
58 static int radeon_do_cleanup_cp(struct drm_device * dev);
59 static void radeon_do_cp_start(drm_radeon_private_t * dev_priv);
60
61 u32 radeon_read_ring_rptr(drm_radeon_private_t *dev_priv, u32 off)
62 {
63 u32 val;
64
65 if (dev_priv->flags & RADEON_IS_AGP) {
66 val = DRM_READ32(dev_priv->ring_rptr, off);
67 } else {
68 val = *(((volatile u32 *)
69 dev_priv->ring_rptr->handle) +
70 (off / sizeof(u32)));
71 val = le32_to_cpu(val);
72 }
73 return val;
74 }
75
76 u32 radeon_get_ring_head(drm_radeon_private_t *dev_priv)
77 {
78 if (dev_priv->writeback_works)
79 return radeon_read_ring_rptr(dev_priv, 0);
80 else {
81 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
82 return RADEON_READ(R600_CP_RB_RPTR);
83 else
84 return RADEON_READ(RADEON_CP_RB_RPTR);
85 }
86 }
87
88 void radeon_write_ring_rptr(drm_radeon_private_t *dev_priv, u32 off, u32 val)
89 {
90 if (dev_priv->flags & RADEON_IS_AGP)
91 DRM_WRITE32(dev_priv->ring_rptr, off, val);
92 else
93 *(((volatile u32 *) dev_priv->ring_rptr->handle) +
94 (off / sizeof(u32))) = cpu_to_le32(val);
95 }
96
97 void radeon_set_ring_head(drm_radeon_private_t *dev_priv, u32 val)
98 {
99 radeon_write_ring_rptr(dev_priv, 0, val);
100 }
101
102 u32 radeon_get_scratch(drm_radeon_private_t *dev_priv, int index)
103 {
104 if (dev_priv->writeback_works) {
105 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
106 return radeon_read_ring_rptr(dev_priv,
107 R600_SCRATCHOFF(index));
108 else
109 return radeon_read_ring_rptr(dev_priv,
110 RADEON_SCRATCHOFF(index));
111 } else {
112 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
113 return RADEON_READ(R600_SCRATCH_REG0 + 4*index);
114 else
115 return RADEON_READ(RADEON_SCRATCH_REG0 + 4*index);
116 }
117 }
118
119 u32 RADEON_READ_MM(drm_radeon_private_t *dev_priv, int addr)
120 {
121 u32 ret;
122
123 if (addr < 0x10000)
124 ret = DRM_READ32(dev_priv->mmio, addr);
125 else {
126 DRM_WRITE32(dev_priv->mmio, RADEON_MM_INDEX, addr);
127 ret = DRM_READ32(dev_priv->mmio, RADEON_MM_DATA);
128 }
129
130 return ret;
131 }
132
133 static u32 R500_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
134 {
135 u32 ret;
136 RADEON_WRITE(R520_MC_IND_INDEX, 0x7f0000 | (addr & 0xff));
137 ret = RADEON_READ(R520_MC_IND_DATA);
138 RADEON_WRITE(R520_MC_IND_INDEX, 0);
139 return ret;
140 }
141
142 static u32 RS480_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
143 {
144 u32 ret;
145 RADEON_WRITE(RS480_NB_MC_INDEX, addr & 0xff);
146 ret = RADEON_READ(RS480_NB_MC_DATA);
147 RADEON_WRITE(RS480_NB_MC_INDEX, 0xff);
148 return ret;
149 }
150
151 static u32 RS690_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
152 {
153 u32 ret;
154 RADEON_WRITE(RS690_MC_INDEX, (addr & RS690_MC_INDEX_MASK));
155 ret = RADEON_READ(RS690_MC_DATA);
156 RADEON_WRITE(RS690_MC_INDEX, RS690_MC_INDEX_MASK);
157 return ret;
158 }
159
160 static u32 RS600_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
161 {
162 u32 ret;
163 RADEON_WRITE(RS600_MC_INDEX, ((addr & RS600_MC_ADDR_MASK) |
164 RS600_MC_IND_CITF_ARB0));
165 ret = RADEON_READ(RS600_MC_DATA);
166 return ret;
167 }
168
169 static u32 IGP_READ_MCIND(drm_radeon_private_t *dev_priv, int addr)
170 {
171 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
172 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
173 return RS690_READ_MCIND(dev_priv, addr);
174 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
175 return RS600_READ_MCIND(dev_priv, addr);
176 else
177 return RS480_READ_MCIND(dev_priv, addr);
178 }
179
180 u32 radeon_read_fb_location(drm_radeon_private_t *dev_priv)
181 {
182
183 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
184 return RADEON_READ(R700_MC_VM_FB_LOCATION);
185 else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
186 return RADEON_READ(R600_MC_VM_FB_LOCATION);
187 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
188 return R500_READ_MCIND(dev_priv, RV515_MC_FB_LOCATION);
189 else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
190 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
191 return RS690_READ_MCIND(dev_priv, RS690_MC_FB_LOCATION);
192 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
193 return RS600_READ_MCIND(dev_priv, RS600_MC_FB_LOCATION);
194 else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
195 return R500_READ_MCIND(dev_priv, R520_MC_FB_LOCATION);
196 else
197 return RADEON_READ(RADEON_MC_FB_LOCATION);
198 }
199
200 static void radeon_write_fb_location(drm_radeon_private_t *dev_priv, u32 fb_loc)
201 {
202 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
203 RADEON_WRITE(R700_MC_VM_FB_LOCATION, fb_loc);
204 else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
205 RADEON_WRITE(R600_MC_VM_FB_LOCATION, fb_loc);
206 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
207 R500_WRITE_MCIND(RV515_MC_FB_LOCATION, fb_loc);
208 else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
209 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
210 RS690_WRITE_MCIND(RS690_MC_FB_LOCATION, fb_loc);
211 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
212 RS600_WRITE_MCIND(RS600_MC_FB_LOCATION, fb_loc);
213 else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
214 R500_WRITE_MCIND(R520_MC_FB_LOCATION, fb_loc);
215 else
216 RADEON_WRITE(RADEON_MC_FB_LOCATION, fb_loc);
217 }
218
219 void radeon_write_agp_location(drm_radeon_private_t *dev_priv, u32 agp_loc)
220 {
221 /*R6xx/R7xx: AGP_TOP and BOT are actually 18 bits each */
222 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770) {
223 RADEON_WRITE(R700_MC_VM_AGP_BOT, agp_loc & 0xffff); /* FIX ME */
224 RADEON_WRITE(R700_MC_VM_AGP_TOP, (agp_loc >> 16) & 0xffff);
225 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
226 RADEON_WRITE(R600_MC_VM_AGP_BOT, agp_loc & 0xffff); /* FIX ME */
227 RADEON_WRITE(R600_MC_VM_AGP_TOP, (agp_loc >> 16) & 0xffff);
228 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515)
229 R500_WRITE_MCIND(RV515_MC_AGP_LOCATION, agp_loc);
230 else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
231 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
232 RS690_WRITE_MCIND(RS690_MC_AGP_LOCATION, agp_loc);
233 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
234 RS600_WRITE_MCIND(RS600_MC_AGP_LOCATION, agp_loc);
235 else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515)
236 R500_WRITE_MCIND(R520_MC_AGP_LOCATION, agp_loc);
237 else
238 RADEON_WRITE(RADEON_MC_AGP_LOCATION, agp_loc);
239 }
240
241 void radeon_write_agp_base(drm_radeon_private_t *dev_priv, u64 agp_base)
242 {
243 u32 agp_base_hi = upper_32_bits(agp_base);
244 u32 agp_base_lo = agp_base & 0xffffffff;
245 u32 r6xx_agp_base = (agp_base >> 22) & 0x3ffff;
246
247 /* R6xx/R7xx must be aligned to a 4MB boundry */
248 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV770)
249 RADEON_WRITE(R700_MC_VM_AGP_BASE, r6xx_agp_base);
250 else if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
251 RADEON_WRITE(R600_MC_VM_AGP_BASE, r6xx_agp_base);
252 else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) {
253 R500_WRITE_MCIND(RV515_MC_AGP_BASE, agp_base_lo);
254 R500_WRITE_MCIND(RV515_MC_AGP_BASE_2, agp_base_hi);
255 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
256 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
257 RS690_WRITE_MCIND(RS690_MC_AGP_BASE, agp_base_lo);
258 RS690_WRITE_MCIND(RS690_MC_AGP_BASE_2, agp_base_hi);
259 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600) {
260 RS600_WRITE_MCIND(RS600_AGP_BASE, agp_base_lo);
261 RS600_WRITE_MCIND(RS600_AGP_BASE_2, agp_base_hi);
262 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) > CHIP_RV515) {
263 R500_WRITE_MCIND(R520_MC_AGP_BASE, agp_base_lo);
264 R500_WRITE_MCIND(R520_MC_AGP_BASE_2, agp_base_hi);
265 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
266 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
267 RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
268 RADEON_WRITE(RS480_AGP_BASE_2, agp_base_hi);
269 } else {
270 RADEON_WRITE(RADEON_AGP_BASE, agp_base_lo);
271 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R200)
272 RADEON_WRITE(RADEON_AGP_BASE_2, agp_base_hi);
273 }
274 }
275
276 void radeon_enable_bm(struct drm_radeon_private *dev_priv)
277 {
278 u32 tmp;
279 /* Turn on bus mastering */
280 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
281 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
282 /* rs600/rs690/rs740 */
283 tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
284 RADEON_WRITE(RADEON_BUS_CNTL, tmp);
285 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV350) ||
286 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
287 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
288 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
289 /* r1xx, r2xx, r300, r(v)350, r420/r481, rs400/rs480 */
290 tmp = RADEON_READ(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
291 RADEON_WRITE(RADEON_BUS_CNTL, tmp);
292 } /* PCIE cards appears to not need this */
293 }
294
295 static int RADEON_READ_PLL(struct drm_device * dev, int addr)
296 {
297 drm_radeon_private_t *dev_priv = dev->dev_private;
298
299 RADEON_WRITE8(RADEON_CLOCK_CNTL_INDEX, addr & 0x1f);
300 return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
301 }
302
303 static u32 RADEON_READ_PCIE(drm_radeon_private_t *dev_priv, int addr)
304 {
305 RADEON_WRITE8(RADEON_PCIE_INDEX, addr & 0xff);
306 return RADEON_READ(RADEON_PCIE_DATA);
307 }
308
309 #if RADEON_FIFO_DEBUG
310 static void radeon_status(drm_radeon_private_t * dev_priv)
311 {
312 printk("%s:\n", __func__);
313 printk("RBBM_STATUS = 0x%08x\n",
314 (unsigned int)RADEON_READ(RADEON_RBBM_STATUS));
315 printk("CP_RB_RTPR = 0x%08x\n",
316 (unsigned int)RADEON_READ(RADEON_CP_RB_RPTR));
317 printk("CP_RB_WTPR = 0x%08x\n",
318 (unsigned int)RADEON_READ(RADEON_CP_RB_WPTR));
319 printk("AIC_CNTL = 0x%08x\n",
320 (unsigned int)RADEON_READ(RADEON_AIC_CNTL));
321 printk("AIC_STAT = 0x%08x\n",
322 (unsigned int)RADEON_READ(RADEON_AIC_STAT));
323 printk("AIC_PT_BASE = 0x%08x\n",
324 (unsigned int)RADEON_READ(RADEON_AIC_PT_BASE));
325 printk("TLB_ADDR = 0x%08x\n",
326 (unsigned int)RADEON_READ(RADEON_AIC_TLB_ADDR));
327 printk("TLB_DATA = 0x%08x\n",
328 (unsigned int)RADEON_READ(RADEON_AIC_TLB_DATA));
329 }
330 #endif
331
332 /* ================================================================
333 * Engine, FIFO control
334 */
335
336 static int radeon_do_pixcache_flush(drm_radeon_private_t * dev_priv)
337 {
338 u32 tmp;
339 int i;
340
341 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
342
343 if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV280) {
344 tmp = RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT);
345 tmp |= RADEON_RB3D_DC_FLUSH_ALL;
346 RADEON_WRITE(RADEON_RB3D_DSTCACHE_CTLSTAT, tmp);
347
348 for (i = 0; i < dev_priv->usec_timeout; i++) {
349 if (!(RADEON_READ(RADEON_RB3D_DSTCACHE_CTLSTAT)
350 & RADEON_RB3D_DC_BUSY)) {
351 return 0;
352 }
353 DRM_UDELAY(1);
354 }
355 } else {
356 /* don't flush or purge cache here or lockup */
357 return 0;
358 }
359
360 #if RADEON_FIFO_DEBUG
361 DRM_ERROR("failed!\n");
362 radeon_status(dev_priv);
363 #endif
364 return -EBUSY;
365 }
366
367 static int radeon_do_wait_for_fifo(drm_radeon_private_t * dev_priv, int entries)
368 {
369 int i;
370
371 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
372
373 for (i = 0; i < dev_priv->usec_timeout; i++) {
374 int slots = (RADEON_READ(RADEON_RBBM_STATUS)
375 & RADEON_RBBM_FIFOCNT_MASK);
376 if (slots >= entries)
377 return 0;
378 DRM_UDELAY(1);
379 }
380 DRM_DEBUG("wait for fifo failed status : 0x%08X 0x%08X\n",
381 RADEON_READ(RADEON_RBBM_STATUS),
382 RADEON_READ(R300_VAP_CNTL_STATUS));
383
384 #if RADEON_FIFO_DEBUG
385 DRM_ERROR("failed!\n");
386 radeon_status(dev_priv);
387 #endif
388 return -EBUSY;
389 }
390
391 static int radeon_do_wait_for_idle(drm_radeon_private_t * dev_priv)
392 {
393 int i, ret;
394
395 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
396
397 ret = radeon_do_wait_for_fifo(dev_priv, 64);
398 if (ret)
399 return ret;
400
401 for (i = 0; i < dev_priv->usec_timeout; i++) {
402 if (!(RADEON_READ(RADEON_RBBM_STATUS)
403 & RADEON_RBBM_ACTIVE)) {
404 radeon_do_pixcache_flush(dev_priv);
405 return 0;
406 }
407 DRM_UDELAY(1);
408 }
409 DRM_DEBUG("wait idle failed status : 0x%08X 0x%08X\n",
410 RADEON_READ(RADEON_RBBM_STATUS),
411 RADEON_READ(R300_VAP_CNTL_STATUS));
412
413 #if RADEON_FIFO_DEBUG
414 DRM_ERROR("failed!\n");
415 radeon_status(dev_priv);
416 #endif
417 return -EBUSY;
418 }
419
420 static void radeon_init_pipes(drm_radeon_private_t *dev_priv)
421 {
422 uint32_t gb_tile_config, gb_pipe_sel = 0;
423
424 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) {
425 uint32_t z_pipe_sel = RADEON_READ(RV530_GB_PIPE_SELECT2);
426 if ((z_pipe_sel & 3) == 3)
427 dev_priv->num_z_pipes = 2;
428 else
429 dev_priv->num_z_pipes = 1;
430 } else
431 dev_priv->num_z_pipes = 1;
432
433 /* RS4xx/RS6xx/R4xx/R5xx */
434 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R420) {
435 gb_pipe_sel = RADEON_READ(R400_GB_PIPE_SELECT);
436 dev_priv->num_gb_pipes = ((gb_pipe_sel >> 12) & 0x3) + 1;
437 } else {
438 /* R3xx */
439 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
440 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350)) {
441 dev_priv->num_gb_pipes = 2;
442 } else {
443 /* R3Vxx */
444 dev_priv->num_gb_pipes = 1;
445 }
446 }
447 DRM_INFO("Num pipes: %d\n", dev_priv->num_gb_pipes);
448
449 gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16 /*| R300_SUBPIXEL_1_16*/);
450
451 switch (dev_priv->num_gb_pipes) {
452 case 2: gb_tile_config |= R300_PIPE_COUNT_R300; break;
453 case 3: gb_tile_config |= R300_PIPE_COUNT_R420_3P; break;
454 case 4: gb_tile_config |= R300_PIPE_COUNT_R420; break;
455 default:
456 case 1: gb_tile_config |= R300_PIPE_COUNT_RV350; break;
457 }
458
459 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RV515) {
460 RADEON_WRITE_PLL(R500_DYN_SCLK_PWMEM_PIPE, (1 | ((gb_pipe_sel >> 8) & 0xf) << 4));
461 RADEON_WRITE(R300_SU_REG_DEST, ((1 << dev_priv->num_gb_pipes) - 1));
462 }
463 RADEON_WRITE(R300_GB_TILE_CONFIG, gb_tile_config);
464 radeon_do_wait_for_idle(dev_priv);
465 RADEON_WRITE(R300_DST_PIPE_CONFIG, RADEON_READ(R300_DST_PIPE_CONFIG) | R300_PIPE_AUTO_CONFIG);
466 RADEON_WRITE(R300_RB2D_DSTCACHE_MODE, (RADEON_READ(R300_RB2D_DSTCACHE_MODE) |
467 R300_DC_AUTOFLUSH_ENABLE |
468 R300_DC_DC_DISABLE_IGNORE_PE));
469
470
471 }
472
473 /* ================================================================
474 * CP control, initialization
475 */
476
477 /* Load the microcode for the CP */
478 static int radeon_cp_init_microcode(drm_radeon_private_t *dev_priv)
479 {
480 struct platform_device *pdev;
481 const char *fw_name = NULL;
482 int err;
483
484 DRM_DEBUG("\n");
485
486 pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
487 err = IS_ERR(pdev);
488 if (err) {
489 printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
490 return -EINVAL;
491 }
492
493 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R100) ||
494 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV100) ||
495 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV200) ||
496 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS100) ||
497 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS200)) {
498 DRM_INFO("Loading R100 Microcode\n");
499 fw_name = FIRMWARE_R100;
500 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R200) ||
501 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV250) ||
502 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV280) ||
503 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS300)) {
504 DRM_INFO("Loading R200 Microcode\n");
505 fw_name = FIRMWARE_R200;
506 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R300) ||
507 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R350) ||
508 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV350) ||
509 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV380) ||
510 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS400) ||
511 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS480)) {
512 DRM_INFO("Loading R300 Microcode\n");
513 fw_name = FIRMWARE_R300;
514 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) ||
515 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R423) ||
516 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV410)) {
517 DRM_INFO("Loading R400 Microcode\n");
518 fw_name = FIRMWARE_R420;
519 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
520 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740)) {
521 DRM_INFO("Loading RS690/RS740 Microcode\n");
522 fw_name = FIRMWARE_RS690;
523 } else if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600) {
524 DRM_INFO("Loading RS600 Microcode\n");
525 fw_name = FIRMWARE_RS600;
526 } else if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV515) ||
527 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R520) ||
528 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV530) ||
529 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R580) ||
530 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV560) ||
531 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV570)) {
532 DRM_INFO("Loading R500 Microcode\n");
533 fw_name = FIRMWARE_R520;
534 }
535
536 err = request_firmware(&dev_priv->me_fw, fw_name, &pdev->dev);
537 platform_device_unregister(pdev);
538 if (err) {
539 printk(KERN_ERR "radeon_cp: Failed to load firmware \"%s\"\n",
540 fw_name);
541 } else if (dev_priv->me_fw->size % 8) {
542 printk(KERN_ERR
543 "radeon_cp: Bogus length %zu in firmware \"%s\"\n",
544 dev_priv->me_fw->size, fw_name);
545 err = -EINVAL;
546 release_firmware(dev_priv->me_fw);
547 dev_priv->me_fw = NULL;
548 }
549 return err;
550 }
551
552 static void radeon_cp_load_microcode(drm_radeon_private_t *dev_priv)
553 {
554 const __be32 *fw_data;
555 int i, size;
556
557 radeon_do_wait_for_idle(dev_priv);
558
559 if (dev_priv->me_fw) {
560 size = dev_priv->me_fw->size / 4;
561 fw_data = (const __be32 *)&dev_priv->me_fw->data[0];
562 RADEON_WRITE(RADEON_CP_ME_RAM_ADDR, 0);
563 for (i = 0; i < size; i += 2) {
564 RADEON_WRITE(RADEON_CP_ME_RAM_DATAH,
565 be32_to_cpup(&fw_data[i]));
566 RADEON_WRITE(RADEON_CP_ME_RAM_DATAL,
567 be32_to_cpup(&fw_data[i + 1]));
568 }
569 }
570 }
571
572 /* Flush any pending commands to the CP. This should only be used just
573 * prior to a wait for idle, as it informs the engine that the command
574 * stream is ending.
575 */
576 static void radeon_do_cp_flush(drm_radeon_private_t * dev_priv)
577 {
578 DRM_DEBUG("\n");
579 #if 0
580 u32 tmp;
581
582 tmp = RADEON_READ(RADEON_CP_RB_WPTR) | (1 << 31);
583 RADEON_WRITE(RADEON_CP_RB_WPTR, tmp);
584 #endif
585 }
586
587 /* Wait for the CP to go idle.
588 */
589 int radeon_do_cp_idle(drm_radeon_private_t * dev_priv)
590 {
591 RING_LOCALS;
592 DRM_DEBUG("\n");
593
594 BEGIN_RING(6);
595
596 RADEON_PURGE_CACHE();
597 RADEON_PURGE_ZCACHE();
598 RADEON_WAIT_UNTIL_IDLE();
599
600 ADVANCE_RING();
601 COMMIT_RING();
602
603 return radeon_do_wait_for_idle(dev_priv);
604 }
605
606 /* Start the Command Processor.
607 */
608 static void radeon_do_cp_start(drm_radeon_private_t * dev_priv)
609 {
610 RING_LOCALS;
611 DRM_DEBUG("\n");
612
613 radeon_do_wait_for_idle(dev_priv);
614
615 RADEON_WRITE(RADEON_CP_CSQ_CNTL, dev_priv->cp_mode);
616
617 dev_priv->cp_running = 1;
618
619 /* on r420, any DMA from CP to system memory while 2D is active
620 * can cause a hang. workaround is to queue a CP RESYNC token
621 */
622 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) {
623 BEGIN_RING(3);
624 OUT_RING(CP_PACKET0(R300_CP_RESYNC_ADDR, 1));
625 OUT_RING(5); /* scratch reg 5 */
626 OUT_RING(0xdeadbeef);
627 ADVANCE_RING();
628 COMMIT_RING();
629 }
630
631 BEGIN_RING(8);
632 /* isync can only be written through cp on r5xx write it here */
633 OUT_RING(CP_PACKET0(RADEON_ISYNC_CNTL, 0));
634 OUT_RING(RADEON_ISYNC_ANY2D_IDLE3D |
635 RADEON_ISYNC_ANY3D_IDLE2D |
636 RADEON_ISYNC_WAIT_IDLEGUI |
637 RADEON_ISYNC_CPSCRATCH_IDLEGUI);
638 RADEON_PURGE_CACHE();
639 RADEON_PURGE_ZCACHE();
640 RADEON_WAIT_UNTIL_IDLE();
641 ADVANCE_RING();
642 COMMIT_RING();
643
644 dev_priv->track_flush |= RADEON_FLUSH_EMITED | RADEON_PURGE_EMITED;
645 }
646
647 /* Reset the Command Processor. This will not flush any pending
648 * commands, so you must wait for the CP command stream to complete
649 * before calling this routine.
650 */
651 static void radeon_do_cp_reset(drm_radeon_private_t * dev_priv)
652 {
653 u32 cur_read_ptr;
654 DRM_DEBUG("\n");
655
656 cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
657 RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
658 SET_RING_HEAD(dev_priv, cur_read_ptr);
659 dev_priv->ring.tail = cur_read_ptr;
660 }
661
662 /* Stop the Command Processor. This will not flush any pending
663 * commands, so you must flush the command stream and wait for the CP
664 * to go idle before calling this routine.
665 */
666 static void radeon_do_cp_stop(drm_radeon_private_t * dev_priv)
667 {
668 RING_LOCALS;
669 DRM_DEBUG("\n");
670
671 /* finish the pending CP_RESYNC token */
672 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_R420) {
673 BEGIN_RING(2);
674 OUT_RING(CP_PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
675 OUT_RING(R300_RB3D_DC_FINISH);
676 ADVANCE_RING();
677 COMMIT_RING();
678 radeon_do_wait_for_idle(dev_priv);
679 }
680
681 RADEON_WRITE(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIDIS_INDDIS);
682
683 dev_priv->cp_running = 0;
684 }
685
686 /* Reset the engine. This will stop the CP if it is running.
687 */
688 static int radeon_do_engine_reset(struct drm_device * dev)
689 {
690 drm_radeon_private_t *dev_priv = dev->dev_private;
691 u32 clock_cntl_index = 0, mclk_cntl = 0, rbbm_soft_reset;
692 DRM_DEBUG("\n");
693
694 radeon_do_pixcache_flush(dev_priv);
695
696 if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
697 /* may need something similar for newer chips */
698 clock_cntl_index = RADEON_READ(RADEON_CLOCK_CNTL_INDEX);
699 mclk_cntl = RADEON_READ_PLL(dev, RADEON_MCLK_CNTL);
700
701 RADEON_WRITE_PLL(RADEON_MCLK_CNTL, (mclk_cntl |
702 RADEON_FORCEON_MCLKA |
703 RADEON_FORCEON_MCLKB |
704 RADEON_FORCEON_YCLKA |
705 RADEON_FORCEON_YCLKB |
706 RADEON_FORCEON_MC |
707 RADEON_FORCEON_AIC));
708 }
709
710 rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);
711
712 RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
713 RADEON_SOFT_RESET_CP |
714 RADEON_SOFT_RESET_HI |
715 RADEON_SOFT_RESET_SE |
716 RADEON_SOFT_RESET_RE |
717 RADEON_SOFT_RESET_PP |
718 RADEON_SOFT_RESET_E2 |
719 RADEON_SOFT_RESET_RB));
720 RADEON_READ(RADEON_RBBM_SOFT_RESET);
721 RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
722 ~(RADEON_SOFT_RESET_CP |
723 RADEON_SOFT_RESET_HI |
724 RADEON_SOFT_RESET_SE |
725 RADEON_SOFT_RESET_RE |
726 RADEON_SOFT_RESET_PP |
727 RADEON_SOFT_RESET_E2 |
728 RADEON_SOFT_RESET_RB)));
729 RADEON_READ(RADEON_RBBM_SOFT_RESET);
730
731 if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
732 RADEON_WRITE_PLL(RADEON_MCLK_CNTL, mclk_cntl);
733 RADEON_WRITE(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
734 RADEON_WRITE(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);
735 }
736
737 /* setup the raster pipes */
738 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R300)
739 radeon_init_pipes(dev_priv);
740
741 /* Reset the CP ring */
742 radeon_do_cp_reset(dev_priv);
743
744 /* The CP is no longer running after an engine reset */
745 dev_priv->cp_running = 0;
746
747 /* Reset any pending vertex, indirect buffers */
748 radeon_freelist_reset(dev);
749
750 return 0;
751 }
752
753 static void radeon_cp_init_ring_buffer(struct drm_device * dev,
754 drm_radeon_private_t *dev_priv,
755 struct drm_file *file_priv)
756 {
757 struct drm_radeon_master_private *master_priv;
758 u32 ring_start, cur_read_ptr;
759
760 /* Initialize the memory controller. With new memory map, the fb location
761 * is not changed, it should have been properly initialized already. Part
762 * of the problem is that the code below is bogus, assuming the GART is
763 * always appended to the fb which is not necessarily the case
764 */
765 if (!dev_priv->new_memmap)
766 radeon_write_fb_location(dev_priv,
767 ((dev_priv->gart_vm_start - 1) & 0xffff0000)
768 | (dev_priv->fb_location >> 16));
769
770 #if __OS_HAS_AGP
771 if (dev_priv->flags & RADEON_IS_AGP) {
772 radeon_write_agp_base(dev_priv, dev->agp->base);
773
774 radeon_write_agp_location(dev_priv,
775 (((dev_priv->gart_vm_start - 1 +
776 dev_priv->gart_size) & 0xffff0000) |
777 (dev_priv->gart_vm_start >> 16)));
778
779 ring_start = (dev_priv->cp_ring->offset
780 - dev->agp->base
781 + dev_priv->gart_vm_start);
782 } else
783 #endif
784 ring_start = (dev_priv->cp_ring->offset
785 - (unsigned long)dev->sg->virtual
786 + dev_priv->gart_vm_start);
787
788 RADEON_WRITE(RADEON_CP_RB_BASE, ring_start);
789
790 /* Set the write pointer delay */
791 RADEON_WRITE(RADEON_CP_RB_WPTR_DELAY, 0);
792
793 /* Initialize the ring buffer's read and write pointers */
794 cur_read_ptr = RADEON_READ(RADEON_CP_RB_RPTR);
795 RADEON_WRITE(RADEON_CP_RB_WPTR, cur_read_ptr);
796 SET_RING_HEAD(dev_priv, cur_read_ptr);
797 dev_priv->ring.tail = cur_read_ptr;
798
799 #if __OS_HAS_AGP
800 if (dev_priv->flags & RADEON_IS_AGP) {
801 RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
802 dev_priv->ring_rptr->offset
803 - dev->agp->base + dev_priv->gart_vm_start);
804 } else
805 #endif
806 {
807 RADEON_WRITE(RADEON_CP_RB_RPTR_ADDR,
808 dev_priv->ring_rptr->offset
809 - ((unsigned long) dev->sg->virtual)
810 + dev_priv->gart_vm_start);
811 }
812
813 /* Set ring buffer size */
814 #ifdef __BIG_ENDIAN
815 RADEON_WRITE(RADEON_CP_RB_CNTL,
816 RADEON_BUF_SWAP_32BIT |
817 (dev_priv->ring.fetch_size_l2ow << 18) |
818 (dev_priv->ring.rptr_update_l2qw << 8) |
819 dev_priv->ring.size_l2qw);
820 #else
821 RADEON_WRITE(RADEON_CP_RB_CNTL,
822 (dev_priv->ring.fetch_size_l2ow << 18) |
823 (dev_priv->ring.rptr_update_l2qw << 8) |
824 dev_priv->ring.size_l2qw);
825 #endif
826
827
828 /* Initialize the scratch register pointer. This will cause
829 * the scratch register values to be written out to memory
830 * whenever they are updated.
831 *
832 * We simply put this behind the ring read pointer, this works
833 * with PCI GART as well as (whatever kind of) AGP GART
834 */
835 RADEON_WRITE(RADEON_SCRATCH_ADDR, RADEON_READ(RADEON_CP_RB_RPTR_ADDR)
836 + RADEON_SCRATCH_REG_OFFSET);
837
838 RADEON_WRITE(RADEON_SCRATCH_UMSK, 0x7);
839
840 radeon_enable_bm(dev_priv);
841
842 radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(0), 0);
843 RADEON_WRITE(RADEON_LAST_FRAME_REG, 0);
844
845 radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1), 0);
846 RADEON_WRITE(RADEON_LAST_DISPATCH_REG, 0);
847
848 radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(2), 0);
849 RADEON_WRITE(RADEON_LAST_CLEAR_REG, 0);
850
851 /* reset sarea copies of these */
852 master_priv = file_priv->master->driver_priv;
853 if (master_priv->sarea_priv) {
854 master_priv->sarea_priv->last_frame = 0;
855 master_priv->sarea_priv->last_dispatch = 0;
856 master_priv->sarea_priv->last_clear = 0;
857 }
858
859 radeon_do_wait_for_idle(dev_priv);
860
861 /* Sync everything up */
862 RADEON_WRITE(RADEON_ISYNC_CNTL,
863 (RADEON_ISYNC_ANY2D_IDLE3D |
864 RADEON_ISYNC_ANY3D_IDLE2D |
865 RADEON_ISYNC_WAIT_IDLEGUI |
866 RADEON_ISYNC_CPSCRATCH_IDLEGUI));
867
868 }
869
870 static void radeon_test_writeback(drm_radeon_private_t * dev_priv)
871 {
872 u32 tmp;
873
874 /* Start with assuming that writeback doesn't work */
875 dev_priv->writeback_works = 0;
876
877 /* Writeback doesn't seem to work everywhere, test it here and possibly
878 * enable it if it appears to work
879 */
880 radeon_write_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1), 0);
881
882 RADEON_WRITE(RADEON_SCRATCH_REG1, 0xdeadbeef);
883
884 for (tmp = 0; tmp < dev_priv->usec_timeout; tmp++) {
885 u32 val;
886
887 val = radeon_read_ring_rptr(dev_priv, RADEON_SCRATCHOFF(1));
888 if (val == 0xdeadbeef)
889 break;
890 DRM_UDELAY(1);
891 }
892
893 if (tmp < dev_priv->usec_timeout) {
894 dev_priv->writeback_works = 1;
895 DRM_INFO("writeback test succeeded in %d usecs\n", tmp);
896 } else {
897 dev_priv->writeback_works = 0;
898 DRM_INFO("writeback test failed\n");
899 }
900 if (radeon_no_wb == 1) {
901 dev_priv->writeback_works = 0;
902 DRM_INFO("writeback forced off\n");
903 }
904
905 if (!dev_priv->writeback_works) {
906 /* Disable writeback to avoid unnecessary bus master transfer */
907 RADEON_WRITE(RADEON_CP_RB_CNTL, RADEON_READ(RADEON_CP_RB_CNTL) |
908 RADEON_RB_NO_UPDATE);
909 RADEON_WRITE(RADEON_SCRATCH_UMSK, 0);
910 }
911 }
912
913 /* Enable or disable IGP GART on the chip */
914 static void radeon_set_igpgart(drm_radeon_private_t * dev_priv, int on)
915 {
916 u32 temp;
917
918 if (on) {
919 DRM_DEBUG("programming igp gart %08X %08lX %08X\n",
920 dev_priv->gart_vm_start,
921 (long)dev_priv->gart_info.bus_addr,
922 dev_priv->gart_size);
923
924 temp = IGP_READ_MCIND(dev_priv, RS480_MC_MISC_CNTL);
925 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
926 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740))
927 IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, (RS480_GART_INDEX_REG_EN |
928 RS690_BLOCK_GFX_D3_EN));
929 else
930 IGP_WRITE_MCIND(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
931
932 IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
933 RS480_VA_SIZE_32MB));
934
935 temp = IGP_READ_MCIND(dev_priv, RS480_GART_FEATURE_ID);
936 IGP_WRITE_MCIND(RS480_GART_FEATURE_ID, (RS480_HANG_EN |
937 RS480_TLB_ENABLE |
938 RS480_GTW_LAC_EN |
939 RS480_1LEVEL_GART));
940
941 temp = dev_priv->gart_info.bus_addr & 0xfffff000;
942 temp |= (upper_32_bits(dev_priv->gart_info.bus_addr) & 0xff) << 4;
943 IGP_WRITE_MCIND(RS480_GART_BASE, temp);
944
945 temp = IGP_READ_MCIND(dev_priv, RS480_AGP_MODE_CNTL);
946 IGP_WRITE_MCIND(RS480_AGP_MODE_CNTL, ((1 << RS480_REQ_TYPE_SNOOP_SHIFT) |
947 RS480_REQ_TYPE_SNOOP_DIS));
948
949 radeon_write_agp_base(dev_priv, dev_priv->gart_vm_start);
950
951 dev_priv->gart_size = 32*1024*1024;
952 temp = (((dev_priv->gart_vm_start - 1 + dev_priv->gart_size) &
953 0xffff0000) | (dev_priv->gart_vm_start >> 16));
954
955 radeon_write_agp_location(dev_priv, temp);
956
957 temp = IGP_READ_MCIND(dev_priv, RS480_AGP_ADDRESS_SPACE_SIZE);
958 IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN |
959 RS480_VA_SIZE_32MB));
960
961 do {
962 temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
963 if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
964 break;
965 DRM_UDELAY(1);
966 } while (1);
967
968 IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL,
969 RS480_GART_CACHE_INVALIDATE);
970
971 do {
972 temp = IGP_READ_MCIND(dev_priv, RS480_GART_CACHE_CNTRL);
973 if ((temp & RS480_GART_CACHE_INVALIDATE) == 0)
974 break;
975 DRM_UDELAY(1);
976 } while (1);
977
978 IGP_WRITE_MCIND(RS480_GART_CACHE_CNTRL, 0);
979 } else {
980 IGP_WRITE_MCIND(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
981 }
982 }
983
984 /* Enable or disable IGP GART on the chip */
985 static void rs600_set_igpgart(drm_radeon_private_t *dev_priv, int on)
986 {
987 u32 temp;
988 int i;
989
990 if (on) {
991 DRM_DEBUG("programming igp gart %08X %08lX %08X\n",
992 dev_priv->gart_vm_start,
993 (long)dev_priv->gart_info.bus_addr,
994 dev_priv->gart_size);
995
996 IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, (RS600_EFFECTIVE_L2_CACHE_SIZE(6) |
997 RS600_EFFECTIVE_L2_QUEUE_SIZE(6)));
998
999 for (i = 0; i < 19; i++)
1000 IGP_WRITE_MCIND(RS600_MC_PT0_CLIENT0_CNTL + i,
1001 (RS600_ENABLE_TRANSLATION_MODE_OVERRIDE |
1002 RS600_SYSTEM_ACCESS_MODE_IN_SYS |
1003 RS600_SYSTEM_APERTURE_UNMAPPED_ACCESS_PASSTHROUGH |
1004 RS600_EFFECTIVE_L1_CACHE_SIZE(3) |
1005 RS600_ENABLE_FRAGMENT_PROCESSING |
1006 RS600_EFFECTIVE_L1_QUEUE_SIZE(3)));
1007
1008 IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_CNTL, (RS600_ENABLE_PAGE_TABLE |
1009 RS600_PAGE_TABLE_TYPE_FLAT));
1010
1011 /* disable all other contexts */
1012 for (i = 1; i < 8; i++)
1013 IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_CNTL + i, 0);
1014
1015 /* setup the page table aperture */
1016 IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
1017 dev_priv->gart_info.bus_addr);
1018 IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_FLAT_START_ADDR,
1019 dev_priv->gart_vm_start);
1020 IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_FLAT_END_ADDR,
1021 (dev_priv->gart_vm_start + dev_priv->gart_size - 1));
1022 IGP_WRITE_MCIND(RS600_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
1023
1024 /* setup the system aperture */
1025 IGP_WRITE_MCIND(RS600_MC_PT0_SYSTEM_APERTURE_LOW_ADDR,
1026 dev_priv->gart_vm_start);
1027 IGP_WRITE_MCIND(RS600_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR,
1028 (dev_priv->gart_vm_start + dev_priv->gart_size - 1));
1029
1030 /* enable page tables */
1031 temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
1032 IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, (temp | RS600_ENABLE_PT));
1033
1034 temp = IGP_READ_MCIND(dev_priv, RS600_MC_CNTL1);
1035 IGP_WRITE_MCIND(RS600_MC_CNTL1, (temp | RS600_ENABLE_PAGE_TABLES));
1036
1037 /* invalidate the cache */
1038 temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
1039
1040 temp &= ~(RS600_INVALIDATE_ALL_L1_TLBS | RS600_INVALIDATE_L2_CACHE);
1041 IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, temp);
1042 temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
1043
1044 temp |= RS600_INVALIDATE_ALL_L1_TLBS | RS600_INVALIDATE_L2_CACHE;
1045 IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, temp);
1046 temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
1047
1048 temp &= ~(RS600_INVALIDATE_ALL_L1_TLBS | RS600_INVALIDATE_L2_CACHE);
1049 IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, temp);
1050 temp = IGP_READ_MCIND(dev_priv, RS600_MC_PT0_CNTL);
1051
1052 } else {
1053 IGP_WRITE_MCIND(RS600_MC_PT0_CNTL, 0);
1054 temp = IGP_READ_MCIND(dev_priv, RS600_MC_CNTL1);
1055 temp &= ~RS600_ENABLE_PAGE_TABLES;
1056 IGP_WRITE_MCIND(RS600_MC_CNTL1, temp);
1057 }
1058 }
1059
1060 static void radeon_set_pciegart(drm_radeon_private_t * dev_priv, int on)
1061 {
1062 u32 tmp = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_TX_GART_CNTL);
1063 if (on) {
1064
1065 DRM_DEBUG("programming pcie %08X %08lX %08X\n",
1066 dev_priv->gart_vm_start,
1067 (long)dev_priv->gart_info.bus_addr,
1068 dev_priv->gart_size);
1069 RADEON_WRITE_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO,
1070 dev_priv->gart_vm_start);
1071 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_BASE,
1072 dev_priv->gart_info.bus_addr);
1073 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_START_LO,
1074 dev_priv->gart_vm_start);
1075 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_END_LO,
1076 dev_priv->gart_vm_start +
1077 dev_priv->gart_size - 1);
1078
1079 radeon_write_agp_location(dev_priv, 0xffffffc0); /* ?? */
1080
1081 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
1082 RADEON_PCIE_TX_GART_EN);
1083 } else {
1084 RADEON_WRITE_PCIE(RADEON_PCIE_TX_GART_CNTL,
1085 tmp & ~RADEON_PCIE_TX_GART_EN);
1086 }
1087 }
1088
1089 /* Enable or disable PCI GART on the chip */
1090 static void radeon_set_pcigart(drm_radeon_private_t * dev_priv, int on)
1091 {
1092 u32 tmp;
1093
1094 if (((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS690) ||
1095 ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS740) ||
1096 (dev_priv->flags & RADEON_IS_IGPGART)) {
1097 radeon_set_igpgart(dev_priv, on);
1098 return;
1099 }
1100
1101 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600) {
1102 rs600_set_igpgart(dev_priv, on);
1103 return;
1104 }
1105
1106 if (dev_priv->flags & RADEON_IS_PCIE) {
1107 radeon_set_pciegart(dev_priv, on);
1108 return;
1109 }
1110
1111 tmp = RADEON_READ(RADEON_AIC_CNTL);
1112
1113 if (on) {
1114 RADEON_WRITE(RADEON_AIC_CNTL,
1115 tmp | RADEON_PCIGART_TRANSLATE_EN);
1116
1117 /* set PCI GART page-table base address
1118 */
1119 RADEON_WRITE(RADEON_AIC_PT_BASE, dev_priv->gart_info.bus_addr);
1120
1121 /* set address range for PCI address translate
1122 */
1123 RADEON_WRITE(RADEON_AIC_LO_ADDR, dev_priv->gart_vm_start);
1124 RADEON_WRITE(RADEON_AIC_HI_ADDR, dev_priv->gart_vm_start
1125 + dev_priv->gart_size - 1);
1126
1127 /* Turn off AGP aperture -- is this required for PCI GART?
1128 */
1129 radeon_write_agp_location(dev_priv, 0xffffffc0);
1130 RADEON_WRITE(RADEON_AGP_COMMAND, 0); /* clear AGP_COMMAND */
1131 } else {
1132 RADEON_WRITE(RADEON_AIC_CNTL,
1133 tmp & ~RADEON_PCIGART_TRANSLATE_EN);
1134 }
1135 }
1136
1137 static int radeon_setup_pcigart_surface(drm_radeon_private_t *dev_priv)
1138 {
1139 struct drm_ati_pcigart_info *gart_info = &dev_priv->gart_info;
1140 struct radeon_virt_surface *vp;
1141 int i;
1142
1143 for (i = 0; i < RADEON_MAX_SURFACES * 2; i++) {
1144 if (!dev_priv->virt_surfaces[i].file_priv ||
1145 dev_priv->virt_surfaces[i].file_priv == PCIGART_FILE_PRIV)
1146 break;
1147 }
1148 if (i >= 2 * RADEON_MAX_SURFACES)
1149 return -ENOMEM;
1150 vp = &dev_priv->virt_surfaces[i];
1151
1152 for (i = 0; i < RADEON_MAX_SURFACES; i++) {
1153 struct radeon_surface *sp = &dev_priv->surfaces[i];
1154 if (sp->refcount)
1155 continue;
1156
1157 vp->surface_index = i;
1158 vp->lower = gart_info->bus_addr;
1159 vp->upper = vp->lower + gart_info->table_size;
1160 vp->flags = 0;
1161 vp->file_priv = PCIGART_FILE_PRIV;
1162
1163 sp->refcount = 1;
1164 sp->lower = vp->lower;
1165 sp->upper = vp->upper;
1166 sp->flags = 0;
1167
1168 RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, sp->flags);
1169 RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND + 16 * i, sp->lower);
1170 RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND + 16 * i, sp->upper);
1171 return 0;
1172 }
1173
1174 return -ENOMEM;
1175 }
1176
1177 static int radeon_do_init_cp(struct drm_device *dev, drm_radeon_init_t *init,
1178 struct drm_file *file_priv)
1179 {
1180 drm_radeon_private_t *dev_priv = dev->dev_private;
1181 struct drm_radeon_master_private *master_priv = file_priv->master->driver_priv;
1182
1183 DRM_DEBUG("\n");
1184
1185 /* if we require new memory map but we don't have it fail */
1186 if ((dev_priv->flags & RADEON_NEW_MEMMAP) && !dev_priv->new_memmap) {
1187 DRM_ERROR("Cannot initialise DRM on this card\nThis card requires a new X.org DDX for 3D\n");
1188 radeon_do_cleanup_cp(dev);
1189 return -EINVAL;
1190 }
1191
1192 if (init->is_pci && (dev_priv->flags & RADEON_IS_AGP)) {
1193 DRM_DEBUG("Forcing AGP card to PCI mode\n");
1194 dev_priv->flags &= ~RADEON_IS_AGP;
1195 } else if (!(dev_priv->flags & (RADEON_IS_AGP | RADEON_IS_PCI | RADEON_IS_PCIE))
1196 && !init->is_pci) {
1197 DRM_DEBUG("Restoring AGP flag\n");
1198 dev_priv->flags |= RADEON_IS_AGP;
1199 }
1200
1201 if ((!(dev_priv->flags & RADEON_IS_AGP)) && !dev->sg) {
1202 DRM_ERROR("PCI GART memory not allocated!\n");
1203 radeon_do_cleanup_cp(dev);
1204 return -EINVAL;
1205 }
1206
1207 dev_priv->usec_timeout = init->usec_timeout;
1208 if (dev_priv->usec_timeout < 1 ||
1209 dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT) {
1210 DRM_DEBUG("TIMEOUT problem!\n");
1211 radeon_do_cleanup_cp(dev);
1212 return -EINVAL;
1213 }
1214
1215 /* Enable vblank on CRTC1 for older X servers
1216 */
1217 dev_priv->vblank_crtc = DRM_RADEON_VBLANK_CRTC1;
1218
1219 switch(init->func) {
1220 case RADEON_INIT_R200_CP:
1221 dev_priv->microcode_version = UCODE_R200;
1222 break;
1223 case RADEON_INIT_R300_CP:
1224 dev_priv->microcode_version = UCODE_R300;
1225 break;
1226 default:
1227 dev_priv->microcode_version = UCODE_R100;
1228 }
1229
1230 dev_priv->do_boxes = 0;
1231 dev_priv->cp_mode = init->cp_mode;
1232
1233 /* We don't support anything other than bus-mastering ring mode,
1234 * but the ring can be in either AGP or PCI space for the ring
1235 * read pointer.
1236 */
1237 if ((init->cp_mode != RADEON_CSQ_PRIBM_INDDIS) &&
1238 (init->cp_mode != RADEON_CSQ_PRIBM_INDBM)) {
1239 DRM_DEBUG("BAD cp_mode (%x)!\n", init->cp_mode);
1240 radeon_do_cleanup_cp(dev);
1241 return -EINVAL;
1242 }
1243
1244 switch (init->fb_bpp) {
1245 case 16:
1246 dev_priv->color_fmt = RADEON_COLOR_FORMAT_RGB565;
1247 break;
1248 case 32:
1249 default:
1250 dev_priv->color_fmt = RADEON_COLOR_FORMAT_ARGB8888;
1251 break;
1252 }
1253 dev_priv->front_offset = init->front_offset;
1254 dev_priv->front_pitch = init->front_pitch;
1255 dev_priv->back_offset = init->back_offset;
1256 dev_priv->back_pitch = init->back_pitch;
1257
1258 switch (init->depth_bpp) {
1259 case 16:
1260 dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_16BIT_INT_Z;
1261 break;
1262 case 32:
1263 default:
1264 dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_24BIT_INT_Z;
1265 break;
1266 }
1267 dev_priv->depth_offset = init->depth_offset;
1268 dev_priv->depth_pitch = init->depth_pitch;
1269
1270 /* Hardware state for depth clears. Remove this if/when we no
1271 * longer clear the depth buffer with a 3D rectangle. Hard-code
1272 * all values to prevent unwanted 3D state from slipping through
1273 * and screwing with the clear operation.
1274 */
1275 dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
1276 (dev_priv->color_fmt << 10) |
1277 (dev_priv->microcode_version ==
1278 UCODE_R100 ? RADEON_ZBLOCK16 : 0));
1279
1280 dev_priv->depth_clear.rb3d_zstencilcntl =
1281 (dev_priv->depth_fmt |
1282 RADEON_Z_TEST_ALWAYS |
1283 RADEON_STENCIL_TEST_ALWAYS |
1284 RADEON_STENCIL_S_FAIL_REPLACE |
1285 RADEON_STENCIL_ZPASS_REPLACE |
1286 RADEON_STENCIL_ZFAIL_REPLACE | RADEON_Z_WRITE_ENABLE);
1287
1288 dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
1289 RADEON_BFACE_SOLID |
1290 RADEON_FFACE_SOLID |
1291 RADEON_FLAT_SHADE_VTX_LAST |
1292 RADEON_DIFFUSE_SHADE_FLAT |
1293 RADEON_ALPHA_SHADE_FLAT |
1294 RADEON_SPECULAR_SHADE_FLAT |
1295 RADEON_FOG_SHADE_FLAT |
1296 RADEON_VTX_PIX_CENTER_OGL |
1297 RADEON_ROUND_MODE_TRUNC |
1298 RADEON_ROUND_PREC_8TH_PIX);
1299
1300
1301 dev_priv->ring_offset = init->ring_offset;
1302 dev_priv->ring_rptr_offset = init->ring_rptr_offset;
1303 dev_priv->buffers_offset = init->buffers_offset;
1304 dev_priv->gart_textures_offset = init->gart_textures_offset;
1305
1306 master_priv->sarea = drm_getsarea(dev);
1307 if (!master_priv->sarea) {
1308 DRM_ERROR("could not find sarea!\n");
1309 radeon_do_cleanup_cp(dev);
1310 return -EINVAL;
1311 }
1312
1313 dev_priv->cp_ring = drm_core_findmap(dev, init->ring_offset);
1314 if (!dev_priv->cp_ring) {
1315 DRM_ERROR("could not find cp ring region!\n");
1316 radeon_do_cleanup_cp(dev);
1317 return -EINVAL;
1318 }
1319 dev_priv->ring_rptr = drm_core_findmap(dev, init->ring_rptr_offset);
1320 if (!dev_priv->ring_rptr) {
1321 DRM_ERROR("could not find ring read pointer!\n");
1322 radeon_do_cleanup_cp(dev);
1323 return -EINVAL;
1324 }
1325 dev->agp_buffer_token = init->buffers_offset;
1326 dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
1327 if (!dev->agp_buffer_map) {
1328 DRM_ERROR("could not find dma buffer region!\n");
1329 radeon_do_cleanup_cp(dev);
1330 return -EINVAL;
1331 }
1332
1333 if (init->gart_textures_offset) {
1334 dev_priv->gart_textures =
1335 drm_core_findmap(dev, init->gart_textures_offset);
1336 if (!dev_priv->gart_textures) {
1337 DRM_ERROR("could not find GART texture region!\n");
1338 radeon_do_cleanup_cp(dev);
1339 return -EINVAL;
1340 }
1341 }
1342
1343 #if __OS_HAS_AGP
1344 if (dev_priv->flags & RADEON_IS_AGP) {
1345 drm_core_ioremap_wc(dev_priv->cp_ring, dev);
1346 drm_core_ioremap_wc(dev_priv->ring_rptr, dev);
1347 drm_core_ioremap_wc(dev->agp_buffer_map, dev);
1348 if (!dev_priv->cp_ring->handle ||
1349 !dev_priv->ring_rptr->handle ||
1350 !dev->agp_buffer_map->handle) {
1351 DRM_ERROR("could not find ioremap agp regions!\n");
1352 radeon_do_cleanup_cp(dev);
1353 return -EINVAL;
1354 }
1355 } else
1356 #endif
1357 {
1358 dev_priv->cp_ring->handle =
1359 (void *)(unsigned long)dev_priv->cp_ring->offset;
1360 dev_priv->ring_rptr->handle =
1361 (void *)(unsigned long)dev_priv->ring_rptr->offset;
1362 dev->agp_buffer_map->handle =
1363 (void *)(unsigned long)dev->agp_buffer_map->offset;
1364
1365 DRM_DEBUG("dev_priv->cp_ring->handle %p\n",
1366 dev_priv->cp_ring->handle);
1367 DRM_DEBUG("dev_priv->ring_rptr->handle %p\n",
1368 dev_priv->ring_rptr->handle);
1369 DRM_DEBUG("dev->agp_buffer_map->handle %p\n",
1370 dev->agp_buffer_map->handle);
1371 }
1372
1373 dev_priv->fb_location = (radeon_read_fb_location(dev_priv) & 0xffff) << 16;
1374 dev_priv->fb_size =
1375 ((radeon_read_fb_location(dev_priv) & 0xffff0000u) + 0x10000)
1376 - dev_priv->fb_location;
1377
1378 dev_priv->front_pitch_offset = (((dev_priv->front_pitch / 64) << 22) |
1379 ((dev_priv->front_offset
1380 + dev_priv->fb_location) >> 10));
1381
1382 dev_priv->back_pitch_offset = (((dev_priv->back_pitch / 64) << 22) |
1383 ((dev_priv->back_offset
1384 + dev_priv->fb_location) >> 10));
1385
1386 dev_priv->depth_pitch_offset = (((dev_priv->depth_pitch / 64) << 22) |
1387 ((dev_priv->depth_offset
1388 + dev_priv->fb_location) >> 10));
1389
1390 dev_priv->gart_size = init->gart_size;
1391
1392 /* New let's set the memory map ... */
1393 if (dev_priv->new_memmap) {
1394 u32 base = 0;
1395
1396 DRM_INFO("Setting GART location based on new memory map\n");
1397
1398 /* If using AGP, try to locate the AGP aperture at the same
1399 * location in the card and on the bus, though we have to
1400 * align it down.
1401 */
1402 #if __OS_HAS_AGP
1403 if (dev_priv->flags & RADEON_IS_AGP) {
1404 base = dev->agp->base;
1405 /* Check if valid */
1406 if ((base + dev_priv->gart_size - 1) >= dev_priv->fb_location &&
1407 base < (dev_priv->fb_location + dev_priv->fb_size - 1)) {
1408 DRM_INFO("Can't use AGP base @0x%08lx, won't fit\n",
1409 dev->agp->base);
1410 base = 0;
1411 }
1412 }
1413 #endif
1414 /* If not or if AGP is at 0 (Macs), try to put it elsewhere */
1415 if (base == 0) {
1416 base = dev_priv->fb_location + dev_priv->fb_size;
1417 if (base < dev_priv->fb_location ||
1418 ((base + dev_priv->gart_size) & 0xfffffffful) < base)
1419 base = dev_priv->fb_location
1420 - dev_priv->gart_size;
1421 }
1422 dev_priv->gart_vm_start = base & 0xffc00000u;
1423 if (dev_priv->gart_vm_start != base)
1424 DRM_INFO("GART aligned down from 0x%08x to 0x%08x\n",
1425 base, dev_priv->gart_vm_start);
1426 } else {
1427 DRM_INFO("Setting GART location based on old memory map\n");
1428 dev_priv->gart_vm_start = dev_priv->fb_location +
1429 RADEON_READ(RADEON_CONFIG_APER_SIZE);
1430 }
1431
1432 #if __OS_HAS_AGP
1433 if (dev_priv->flags & RADEON_IS_AGP)
1434 dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
1435 - dev->agp->base
1436 + dev_priv->gart_vm_start);
1437 else
1438 #endif
1439 dev_priv->gart_buffers_offset = (dev->agp_buffer_map->offset
1440 - (unsigned long)dev->sg->virtual
1441 + dev_priv->gart_vm_start);
1442
1443 DRM_DEBUG("dev_priv->gart_size %d\n", dev_priv->gart_size);
1444 DRM_DEBUG("dev_priv->gart_vm_start 0x%x\n", dev_priv->gart_vm_start);
1445 DRM_DEBUG("dev_priv->gart_buffers_offset 0x%lx\n",
1446 dev_priv->gart_buffers_offset);
1447
1448 dev_priv->ring.start = (u32 *) dev_priv->cp_ring->handle;
1449 dev_priv->ring.end = ((u32 *) dev_priv->cp_ring->handle
1450 + init->ring_size / sizeof(u32));
1451 dev_priv->ring.size = init->ring_size;
1452 dev_priv->ring.size_l2qw = drm_order(init->ring_size / 8);
1453
1454 dev_priv->ring.rptr_update = /* init->rptr_update */ 4096;
1455 dev_priv->ring.rptr_update_l2qw = drm_order( /* init->rptr_update */ 4096 / 8);
1456
1457 dev_priv->ring.fetch_size = /* init->fetch_size */ 32;
1458 dev_priv->ring.fetch_size_l2ow = drm_order( /* init->fetch_size */ 32 / 16);
1459 dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;
1460
1461 dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK;
1462
1463 #if __OS_HAS_AGP
1464 if (dev_priv->flags & RADEON_IS_AGP) {
1465 /* Turn off PCI GART */
1466 radeon_set_pcigart(dev_priv, 0);
1467 } else
1468 #endif
1469 {
1470 u32 sctrl;
1471 int ret;
1472
1473 dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
1474 /* if we have an offset set from userspace */
1475 if (dev_priv->pcigart_offset_set) {
1476 dev_priv->gart_info.bus_addr =
1477 (resource_size_t)dev_priv->pcigart_offset + dev_priv->fb_location;
1478 dev_priv->gart_info.mapping.offset =
1479 dev_priv->pcigart_offset + dev_priv->fb_aper_offset;
1480 dev_priv->gart_info.mapping.size =
1481 dev_priv->gart_info.table_size;
1482
1483 drm_core_ioremap_wc(&dev_priv->gart_info.mapping, dev);
1484 dev_priv->gart_info.addr =
1485 dev_priv->gart_info.mapping.handle;
1486
1487 if (dev_priv->flags & RADEON_IS_PCIE)
1488 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCIE;
1489 else
1490 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
1491 dev_priv->gart_info.gart_table_location =
1492 DRM_ATI_GART_FB;
1493
1494 DRM_DEBUG("Setting phys_pci_gart to %p %08lX\n",
1495 dev_priv->gart_info.addr,
1496 dev_priv->pcigart_offset);
1497 } else {
1498 if (dev_priv->flags & RADEON_IS_IGPGART)
1499 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_IGP;
1500 else
1501 dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
1502 dev_priv->gart_info.gart_table_location =
1503 DRM_ATI_GART_MAIN;
1504 dev_priv->gart_info.addr = NULL;
1505 dev_priv->gart_info.bus_addr = 0;
1506 if (dev_priv->flags & RADEON_IS_PCIE) {
1507 DRM_ERROR
1508 ("Cannot use PCI Express without GART in FB memory\n");
1509 radeon_do_cleanup_cp(dev);
1510 return -EINVAL;
1511 }
1512 }
1513
1514 sctrl = RADEON_READ(RADEON_SURFACE_CNTL);
1515 RADEON_WRITE(RADEON_SURFACE_CNTL, 0);
1516 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
1517 ret = r600_page_table_init(dev);
1518 else
1519 ret = drm_ati_pcigart_init(dev, &dev_priv->gart_info);
1520 RADEON_WRITE(RADEON_SURFACE_CNTL, sctrl);
1521
1522 if (!ret) {
1523 DRM_ERROR("failed to init PCI GART!\n");
1524 radeon_do_cleanup_cp(dev);
1525 return -ENOMEM;
1526 }
1527
1528 ret = radeon_setup_pcigart_surface(dev_priv);
1529 if (ret) {
1530 DRM_ERROR("failed to setup GART surface!\n");
1531 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
1532 r600_page_table_cleanup(dev, &dev_priv->gart_info);
1533 else
1534 drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info);
1535 radeon_do_cleanup_cp(dev);
1536 return ret;
1537 }
1538
1539 /* Turn on PCI GART */
1540 radeon_set_pcigart(dev_priv, 1);
1541 }
1542
1543 if (!dev_priv->me_fw) {
1544 int err = radeon_cp_init_microcode(dev_priv);
1545 if (err) {
1546 DRM_ERROR("Failed to load firmware!\n");
1547 radeon_do_cleanup_cp(dev);
1548 return err;
1549 }
1550 }
1551 radeon_cp_load_microcode(dev_priv);
1552 radeon_cp_init_ring_buffer(dev, dev_priv, file_priv);
1553
1554 dev_priv->last_buf = 0;
1555
1556 radeon_do_engine_reset(dev);
1557 radeon_test_writeback(dev_priv);
1558
1559 return 0;
1560 }
1561
1562 static int radeon_do_cleanup_cp(struct drm_device * dev)
1563 {
1564 drm_radeon_private_t *dev_priv = dev->dev_private;
1565 DRM_DEBUG("\n");
1566
1567 /* Make sure interrupts are disabled here because the uninstall ioctl
1568 * may not have been called from userspace and after dev_private
1569 * is freed, it's too late.
1570 */
1571 if (dev->irq_enabled)
1572 drm_irq_uninstall(dev);
1573
1574 #if __OS_HAS_AGP
1575 if (dev_priv->flags & RADEON_IS_AGP) {
1576 if (dev_priv->cp_ring != NULL) {
1577 drm_core_ioremapfree(dev_priv->cp_ring, dev);
1578 dev_priv->cp_ring = NULL;
1579 }
1580 if (dev_priv->ring_rptr != NULL) {
1581 drm_core_ioremapfree(dev_priv->ring_rptr, dev);
1582 dev_priv->ring_rptr = NULL;
1583 }
1584 if (dev->agp_buffer_map != NULL) {
1585 drm_core_ioremapfree(dev->agp_buffer_map, dev);
1586 dev->agp_buffer_map = NULL;
1587 }
1588 } else
1589 #endif
1590 {
1591
1592 if (dev_priv->gart_info.bus_addr) {
1593 /* Turn off PCI GART */
1594 radeon_set_pcigart(dev_priv, 0);
1595 if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RS600)
1596 r600_page_table_cleanup(dev, &dev_priv->gart_info);
1597 else {
1598 if (!drm_ati_pcigart_cleanup(dev, &dev_priv->gart_info))
1599 DRM_ERROR("failed to cleanup PCI GART!\n");
1600 }
1601 }
1602
1603 if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB)
1604 {
1605 drm_core_ioremapfree(&dev_priv->gart_info.mapping, dev);
1606 dev_priv->gart_info.addr = NULL;
1607 }
1608 }
1609 /* only clear to the start of flags */
1610 memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));
1611
1612 return 0;
1613 }
1614
1615 /* This code will reinit the Radeon CP hardware after a resume from disc.
1616 * AFAIK, it would be very difficult to pickle the state at suspend time, so
1617 * here we make sure that all Radeon hardware initialisation is re-done without
1618 * affecting running applications.
1619 *
1620 * Charl P. Botha <http://cpbotha.net>
1621 */
1622 static int radeon_do_resume_cp(struct drm_device *dev, struct drm_file *file_priv)
1623 {
1624 drm_radeon_private_t *dev_priv = dev->dev_private;
1625
1626 if (!dev_priv) {
1627 DRM_ERROR("Called with no initialization\n");
1628 return -EINVAL;
1629 }
1630
1631 DRM_DEBUG("Starting radeon_do_resume_cp()\n");
1632
1633 #if __OS_HAS_AGP
1634 if (dev_priv->flags & RADEON_IS_AGP) {
1635 /* Turn off PCI GART */
1636 radeon_set_pcigart(dev_priv, 0);
1637 } else
1638 #endif
1639 {
1640 /* Turn on PCI GART */
1641 radeon_set_pcigart(dev_priv, 1);
1642 }
1643
1644 radeon_cp_load_microcode(dev_priv);
1645 radeon_cp_init_ring_buffer(dev, dev_priv, file_priv);
1646
1647 radeon_do_engine_reset(dev);
1648 radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
1649
1650 DRM_DEBUG("radeon_do_resume_cp() complete\n");
1651
1652 return 0;
1653 }
1654
1655 int radeon_cp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
1656 {
1657 drm_radeon_private_t *dev_priv = dev->dev_private;
1658 drm_radeon_init_t *init = data;
1659
1660 LOCK_TEST_WITH_RETURN(dev, file_priv);
1661
1662 if (init->func == RADEON_INIT_R300_CP)
1663 r300_init_reg_flags(dev);
1664
1665 switch (init->func) {
1666 case RADEON_INIT_CP:
1667 case RADEON_INIT_R200_CP:
1668 case RADEON_INIT_R300_CP:
1669 return radeon_do_init_cp(dev, init, file_priv);
1670 case RADEON_INIT_R600_CP:
1671 return r600_do_init_cp(dev, init, file_priv);
1672 case RADEON_CLEANUP_CP:
1673 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1674 return r600_do_cleanup_cp(dev);
1675 else
1676 return radeon_do_cleanup_cp(dev);
1677 }
1678
1679 return -EINVAL;
1680 }
1681
1682 int radeon_cp_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
1683 {
1684 drm_radeon_private_t *dev_priv = dev->dev_private;
1685 DRM_DEBUG("\n");
1686
1687 LOCK_TEST_WITH_RETURN(dev, file_priv);
1688
1689 if (dev_priv->cp_running) {
1690 DRM_DEBUG("while CP running\n");
1691 return 0;
1692 }
1693 if (dev_priv->cp_mode == RADEON_CSQ_PRIDIS_INDDIS) {
1694 DRM_DEBUG("called with bogus CP mode (%d)\n",
1695 dev_priv->cp_mode);
1696 return 0;
1697 }
1698
1699 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1700 r600_do_cp_start(dev_priv);
1701 else
1702 radeon_do_cp_start(dev_priv);
1703
1704 return 0;
1705 }
1706
1707 /* Stop the CP. The engine must have been idled before calling this
1708 * routine.
1709 */
1710 int radeon_cp_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
1711 {
1712 drm_radeon_private_t *dev_priv = dev->dev_private;
1713 drm_radeon_cp_stop_t *stop = data;
1714 int ret;
1715 DRM_DEBUG("\n");
1716
1717 LOCK_TEST_WITH_RETURN(dev, file_priv);
1718
1719 if (!dev_priv->cp_running)
1720 return 0;
1721
1722 /* Flush any pending CP commands. This ensures any outstanding
1723 * commands are exectuted by the engine before we turn it off.
1724 */
1725 if (stop->flush) {
1726 radeon_do_cp_flush(dev_priv);
1727 }
1728
1729 /* If we fail to make the engine go idle, we return an error
1730 * code so that the DRM ioctl wrapper can try again.
1731 */
1732 if (stop->idle) {
1733 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1734 ret = r600_do_cp_idle(dev_priv);
1735 else
1736 ret = radeon_do_cp_idle(dev_priv);
1737 if (ret)
1738 return ret;
1739 }
1740
1741 /* Finally, we can turn off the CP. If the engine isn't idle,
1742 * we will get some dropped triangles as they won't be fully
1743 * rendered before the CP is shut down.
1744 */
1745 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1746 r600_do_cp_stop(dev_priv);
1747 else
1748 radeon_do_cp_stop(dev_priv);
1749
1750 /* Reset the engine */
1751 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1752 r600_do_engine_reset(dev);
1753 else
1754 radeon_do_engine_reset(dev);
1755
1756 return 0;
1757 }
1758
1759 void radeon_do_release(struct drm_device * dev)
1760 {
1761 drm_radeon_private_t *dev_priv = dev->dev_private;
1762 int i, ret;
1763
1764 if (dev_priv) {
1765 if (dev_priv->cp_running) {
1766 /* Stop the cp */
1767 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
1768 while ((ret = r600_do_cp_idle(dev_priv)) != 0) {
1769 DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
1770 #ifdef __linux__
1771 schedule();
1772 #else
1773 tsleep(&ret, PZERO, "rdnrel", 1);
1774 #endif
1775 }
1776 } else {
1777 while ((ret = radeon_do_cp_idle(dev_priv)) != 0) {
1778 DRM_DEBUG("radeon_do_cp_idle %d\n", ret);
1779 #ifdef __linux__
1780 schedule();
1781 #else
1782 tsleep(&ret, PZERO, "rdnrel", 1);
1783 #endif
1784 }
1785 }
1786 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
1787 r600_do_cp_stop(dev_priv);
1788 r600_do_engine_reset(dev);
1789 } else {
1790 radeon_do_cp_stop(dev_priv);
1791 radeon_do_engine_reset(dev);
1792 }
1793 }
1794
1795 if ((dev_priv->flags & RADEON_FAMILY_MASK) < CHIP_R600) {
1796 /* Disable *all* interrupts */
1797 if (dev_priv->mmio) /* remove this after permanent addmaps */
1798 RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
1799
1800 if (dev_priv->mmio) { /* remove all surfaces */
1801 for (i = 0; i < RADEON_MAX_SURFACES; i++) {
1802 RADEON_WRITE(RADEON_SURFACE0_INFO + 16 * i, 0);
1803 RADEON_WRITE(RADEON_SURFACE0_LOWER_BOUND +
1804 16 * i, 0);
1805 RADEON_WRITE(RADEON_SURFACE0_UPPER_BOUND +
1806 16 * i, 0);
1807 }
1808 }
1809 }
1810
1811 /* Free memory heap structures */
1812 radeon_mem_takedown(&(dev_priv->gart_heap));
1813 radeon_mem_takedown(&(dev_priv->fb_heap));
1814
1815 /* deallocate kernel resources */
1816 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1817 r600_do_cleanup_cp(dev);
1818 else
1819 radeon_do_cleanup_cp(dev);
1820 if (dev_priv->me_fw) {
1821 release_firmware(dev_priv->me_fw);
1822 dev_priv->me_fw = NULL;
1823 }
1824 if (dev_priv->pfp_fw) {
1825 release_firmware(dev_priv->pfp_fw);
1826 dev_priv->pfp_fw = NULL;
1827 }
1828 }
1829 }
1830
1831 /* Just reset the CP ring. Called as part of an X Server engine reset.
1832 */
1833 int radeon_cp_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
1834 {
1835 drm_radeon_private_t *dev_priv = dev->dev_private;
1836 DRM_DEBUG("\n");
1837
1838 LOCK_TEST_WITH_RETURN(dev, file_priv);
1839
1840 if (!dev_priv) {
1841 DRM_DEBUG("called before init done\n");
1842 return -EINVAL;
1843 }
1844
1845 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1846 r600_do_cp_reset(dev_priv);
1847 else
1848 radeon_do_cp_reset(dev_priv);
1849
1850 /* The CP is no longer running after an engine reset */
1851 dev_priv->cp_running = 0;
1852
1853 return 0;
1854 }
1855
1856 int radeon_cp_idle(struct drm_device *dev, void *data, struct drm_file *file_priv)
1857 {
1858 drm_radeon_private_t *dev_priv = dev->dev_private;
1859 DRM_DEBUG("\n");
1860
1861 LOCK_TEST_WITH_RETURN(dev, file_priv);
1862
1863 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1864 return r600_do_cp_idle(dev_priv);
1865 else
1866 return radeon_do_cp_idle(dev_priv);
1867 }
1868
1869 /* Added by Charl P. Botha to call radeon_do_resume_cp().
1870 */
1871 int radeon_cp_resume(struct drm_device *dev, void *data, struct drm_file *file_priv)
1872 {
1873 drm_radeon_private_t *dev_priv = dev->dev_private;
1874 DRM_DEBUG("\n");
1875
1876 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1877 return r600_do_resume_cp(dev, file_priv);
1878 else
1879 return radeon_do_resume_cp(dev, file_priv);
1880 }
1881
1882 int radeon_engine_reset(struct drm_device *dev, void *data, struct drm_file *file_priv)
1883 {
1884 drm_radeon_private_t *dev_priv = dev->dev_private;
1885 DRM_DEBUG("\n");
1886
1887 LOCK_TEST_WITH_RETURN(dev, file_priv);
1888
1889 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
1890 return r600_do_engine_reset(dev);
1891 else
1892 return radeon_do_engine_reset(dev);
1893 }
1894
1895 /* ================================================================
1896 * Fullscreen mode
1897 */
1898
1899 /* KW: Deprecated to say the least:
1900 */
1901 int radeon_fullscreen(struct drm_device *dev, void *data, struct drm_file *file_priv)
1902 {
1903 return 0;
1904 }
1905
1906 /* ================================================================
1907 * Freelist management
1908 */
1909
1910 /* Original comment: FIXME: ROTATE_BUFS is a hack to cycle through
1911 * bufs until freelist code is used. Note this hides a problem with
1912 * the scratch register * (used to keep track of last buffer
1913 * completed) being written to before * the last buffer has actually
1914 * completed rendering.
1915 *
1916 * KW: It's also a good way to find free buffers quickly.
1917 *
1918 * KW: Ideally this loop wouldn't exist, and freelist_get wouldn't
1919 * sleep. However, bugs in older versions of radeon_accel.c mean that
1920 * we essentially have to do this, else old clients will break.
1921 *
1922 * However, it does leave open a potential deadlock where all the
1923 * buffers are held by other clients, which can't release them because
1924 * they can't get the lock.
1925 */
1926
1927 struct drm_buf *radeon_freelist_get(struct drm_device * dev)
1928 {
1929 struct drm_device_dma *dma = dev->dma;
1930 drm_radeon_private_t *dev_priv = dev->dev_private;
1931 drm_radeon_buf_priv_t *buf_priv;
1932 struct drm_buf *buf;
1933 int i, t;
1934 int start;
1935
1936 if (++dev_priv->last_buf >= dma->buf_count)
1937 dev_priv->last_buf = 0;
1938
1939 start = dev_priv->last_buf;
1940
1941 for (t = 0; t < dev_priv->usec_timeout; t++) {
1942 u32 done_age = GET_SCRATCH(dev_priv, 1);
1943 DRM_DEBUG("done_age = %d\n", done_age);
1944 for (i = 0; i < dma->buf_count; i++) {
1945 buf = dma->buflist[start];
1946 buf_priv = buf->dev_private;
1947 if (buf->file_priv == NULL || (buf->pending &&
1948 buf_priv->age <=
1949 done_age)) {
1950 dev_priv->stats.requested_bufs++;
1951 buf->pending = 0;
1952 return buf;
1953 }
1954 if (++start >= dma->buf_count)
1955 start = 0;
1956 }
1957
1958 if (t) {
1959 DRM_UDELAY(1);
1960 dev_priv->stats.freelist_loops++;
1961 }
1962 }
1963
1964 return NULL;
1965 }
1966
1967 void radeon_freelist_reset(struct drm_device * dev)
1968 {
1969 struct drm_device_dma *dma = dev->dma;
1970 drm_radeon_private_t *dev_priv = dev->dev_private;
1971 int i;
1972
1973 dev_priv->last_buf = 0;
1974 for (i = 0; i < dma->buf_count; i++) {
1975 struct drm_buf *buf = dma->buflist[i];
1976 drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
1977 buf_priv->age = 0;
1978 }
1979 }
1980
1981 /* ================================================================
1982 * CP command submission
1983 */
1984
1985 int radeon_wait_ring(drm_radeon_private_t * dev_priv, int n)
1986 {
1987 drm_radeon_ring_buffer_t *ring = &dev_priv->ring;
1988 int i;
1989 u32 last_head = GET_RING_HEAD(dev_priv);
1990
1991 for (i = 0; i < dev_priv->usec_timeout; i++) {
1992 u32 head = GET_RING_HEAD(dev_priv);
1993
1994 ring->space = (head - ring->tail) * sizeof(u32);
1995 if (ring->space <= 0)
1996 ring->space += ring->size;
1997 if (ring->space > n)
1998 return 0;
1999
2000 dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
2001
2002 if (head != last_head)
2003 i = 0;
2004 last_head = head;
2005
2006 DRM_UDELAY(1);
2007 }
2008
2009 /* FIXME: This return value is ignored in the BEGIN_RING macro! */
2010 #if RADEON_FIFO_DEBUG
2011 radeon_status(dev_priv);
2012 DRM_ERROR("failed!\n");
2013 #endif
2014 return -EBUSY;
2015 }
2016
2017 static int radeon_cp_get_buffers(struct drm_device *dev,
2018 struct drm_file *file_priv,
2019 struct drm_dma * d)
2020 {
2021 int i;
2022 struct drm_buf *buf;
2023
2024 for (i = d->granted_count; i < d->request_count; i++) {
2025 buf = radeon_freelist_get(dev);
2026 if (!buf)
2027 return -EBUSY; /* NOTE: broken client */
2028
2029 buf->file_priv = file_priv;
2030
2031 if (DRM_COPY_TO_USER(&d->request_indices[i], &buf->idx,
2032 sizeof(buf->idx)))
2033 return -EFAULT;
2034 if (DRM_COPY_TO_USER(&d->request_sizes[i], &buf->total,
2035 sizeof(buf->total)))
2036 return -EFAULT;
2037
2038 d->granted_count++;
2039 }
2040 return 0;
2041 }
2042
2043 int radeon_cp_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
2044 {
2045 struct drm_device_dma *dma = dev->dma;
2046 int ret = 0;
2047 struct drm_dma *d = data;
2048
2049 LOCK_TEST_WITH_RETURN(dev, file_priv);
2050
2051 /* Please don't send us buffers.
2052 */
2053 if (d->send_count != 0) {
2054 DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
2055 DRM_CURRENTPID, d->send_count);
2056 return -EINVAL;
2057 }
2058
2059 /* We'll send you buffers.
2060 */
2061 if (d->request_count < 0 || d->request_count > dma->buf_count) {
2062 DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
2063 DRM_CURRENTPID, d->request_count, dma->buf_count);
2064 return -EINVAL;
2065 }
2066
2067 d->granted_count = 0;
2068
2069 if (d->request_count) {
2070 ret = radeon_cp_get_buffers(dev, file_priv, d);
2071 }
2072
2073 return ret;
2074 }
2075
2076 int radeon_driver_load(struct drm_device *dev, unsigned long flags)
2077 {
2078 drm_radeon_private_t *dev_priv;
2079 int ret = 0;
2080
2081 dev_priv = kzalloc(sizeof(drm_radeon_private_t), GFP_KERNEL);
2082 if (dev_priv == NULL)
2083 return -ENOMEM;
2084
2085 dev->dev_private = (void *)dev_priv;
2086 dev_priv->flags = flags;
2087
2088 switch (flags & RADEON_FAMILY_MASK) {
2089 case CHIP_R100:
2090 case CHIP_RV200:
2091 case CHIP_R200:
2092 case CHIP_R300:
2093 case CHIP_R350:
2094 case CHIP_R420:
2095 case CHIP_R423:
2096 case CHIP_RV410:
2097 case CHIP_RV515:
2098 case CHIP_R520:
2099 case CHIP_RV570:
2100 case CHIP_R580:
2101 dev_priv->flags |= RADEON_HAS_HIERZ;
2102 break;
2103 default:
2104 /* all other chips have no hierarchical z buffer */
2105 break;
2106 }
2107
2108 if (drm_device_is_agp(dev))
2109 dev_priv->flags |= RADEON_IS_AGP;
2110 else if (drm_device_is_pcie(dev))
2111 dev_priv->flags |= RADEON_IS_PCIE;
2112 else
2113 dev_priv->flags |= RADEON_IS_PCI;
2114
2115 ret = drm_addmap(dev, drm_get_resource_start(dev, 2),
2116 drm_get_resource_len(dev, 2), _DRM_REGISTERS,
2117 _DRM_READ_ONLY | _DRM_DRIVER, &dev_priv->mmio);
2118 if (ret != 0)
2119 return ret;
2120
2121 ret = drm_vblank_init(dev, 2);
2122 if (ret) {
2123 radeon_driver_unload(dev);
2124 return ret;
2125 }
2126
2127 DRM_DEBUG("%s card detected\n",
2128 ((dev_priv->flags & RADEON_IS_AGP) ? "AGP" : (((dev_priv->flags & RADEON_IS_PCIE) ? "PCIE" : "PCI"))));
2129 return ret;
2130 }
2131
2132 int radeon_master_create(struct drm_device *dev, struct drm_master *master)
2133 {
2134 struct drm_radeon_master_private *master_priv;
2135 unsigned long sareapage;
2136 int ret;
2137
2138 master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
2139 if (!master_priv)
2140 return -ENOMEM;
2141
2142 /* prebuild the SAREA */
2143 sareapage = max_t(unsigned long, SAREA_MAX, PAGE_SIZE);
2144 ret = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK,
2145 &master_priv->sarea);
2146 if (ret) {
2147 DRM_ERROR("SAREA setup failed\n");
2148 kfree(master_priv);
2149 return ret;
2150 }
2151 master_priv->sarea_priv = master_priv->sarea->handle + sizeof(struct drm_sarea);
2152 master_priv->sarea_priv->pfCurrentPage = 0;
2153
2154 master->driver_priv = master_priv;
2155 return 0;
2156 }
2157
2158 void radeon_master_destroy(struct drm_device *dev, struct drm_master *master)
2159 {
2160 struct drm_radeon_master_private *master_priv = master->driver_priv;
2161
2162 if (!master_priv)
2163 return;
2164
2165 if (master_priv->sarea_priv &&
2166 master_priv->sarea_priv->pfCurrentPage != 0)
2167 radeon_cp_dispatch_flip(dev, master);
2168
2169 master_priv->sarea_priv = NULL;
2170 if (master_priv->sarea)
2171 drm_rmmap_locked(dev, master_priv->sarea);
2172
2173 kfree(master_priv);
2174
2175 master->driver_priv = NULL;
2176 }
2177
2178 /* Create mappings for registers and framebuffer so userland doesn't necessarily
2179 * have to find them.
2180 */
2181 int radeon_driver_firstopen(struct drm_device *dev)
2182 {
2183 int ret;
2184 drm_local_map_t *map;
2185 drm_radeon_private_t *dev_priv = dev->dev_private;
2186
2187 dev_priv->gart_info.table_size = RADEON_PCIGART_TABLE_SIZE;
2188
2189 dev_priv->fb_aper_offset = drm_get_resource_start(dev, 0);
2190 ret = drm_addmap(dev, dev_priv->fb_aper_offset,
2191 drm_get_resource_len(dev, 0), _DRM_FRAME_BUFFER,
2192 _DRM_WRITE_COMBINING, &map);
2193 if (ret != 0)
2194 return ret;
2195
2196 return 0;
2197 }
2198
2199 int radeon_driver_unload(struct drm_device *dev)
2200 {
2201 drm_radeon_private_t *dev_priv = dev->dev_private;
2202
2203 DRM_DEBUG("\n");
2204
2205 drm_rmmap(dev, dev_priv->mmio);
2206
2207 kfree(dev_priv);
2208
2209 dev->dev_private = NULL;
2210 return 0;
2211 }
2212
2213 void radeon_commit_ring(drm_radeon_private_t *dev_priv)
2214 {
2215 int i;
2216 u32 *ring;
2217 int tail_aligned;
2218
2219 /* check if the ring is padded out to 16-dword alignment */
2220
2221 tail_aligned = dev_priv->ring.tail & (RADEON_RING_ALIGN-1);
2222 if (tail_aligned) {
2223 int num_p2 = RADEON_RING_ALIGN - tail_aligned;
2224
2225 ring = dev_priv->ring.start;
2226 /* pad with some CP_PACKET2 */
2227 for (i = 0; i < num_p2; i++)
2228 ring[dev_priv->ring.tail + i] = CP_PACKET2();
2229
2230 dev_priv->ring.tail += i;
2231
2232 dev_priv->ring.space -= num_p2 * sizeof(u32);
2233 }
2234
2235 dev_priv->ring.tail &= dev_priv->ring.tail_mask;
2236
2237 DRM_MEMORYBARRIER();
2238 GET_RING_HEAD( dev_priv );
2239
2240 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) {
2241 RADEON_WRITE(R600_CP_RB_WPTR, dev_priv->ring.tail);
2242 /* read from PCI bus to ensure correct posting */
2243 RADEON_READ(R600_CP_RB_RPTR);
2244 } else {
2245 RADEON_WRITE(RADEON_CP_RB_WPTR, dev_priv->ring.tail);
2246 /* read from PCI bus to ensure correct posting */
2247 RADEON_READ(RADEON_CP_RB_RPTR);
2248 }
2249 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree