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drm/radeon/kms: Fix up vertical blank interrupt support.
[deliverable/linux.git] / drivers / gpu / drm / radeon / r100.c
1 /*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28 #include <linux/seq_file.h>
29 #include "drmP.h"
30 #include "drm.h"
31 #include "radeon_drm.h"
32 #include "radeon_microcode.h"
33 #include "radeon_reg.h"
34 #include "radeon.h"
35
36 /* This files gather functions specifics to:
37 * r100,rv100,rs100,rv200,rs200,r200,rv250,rs300,rv280
38 *
39 * Some of these functions might be used by newer ASICs.
40 */
41 void r100_hdp_reset(struct radeon_device *rdev);
42 void r100_gpu_init(struct radeon_device *rdev);
43 int r100_gui_wait_for_idle(struct radeon_device *rdev);
44 int r100_mc_wait_for_idle(struct radeon_device *rdev);
45 void r100_gpu_wait_for_vsync(struct radeon_device *rdev);
46 void r100_gpu_wait_for_vsync2(struct radeon_device *rdev);
47 int r100_debugfs_mc_info_init(struct radeon_device *rdev);
48
49
50 /*
51 * PCI GART
52 */
53 void r100_pci_gart_tlb_flush(struct radeon_device *rdev)
54 {
55 /* TODO: can we do somethings here ? */
56 /* It seems hw only cache one entry so we should discard this
57 * entry otherwise if first GPU GART read hit this entry it
58 * could end up in wrong address. */
59 }
60
61 int r100_pci_gart_enable(struct radeon_device *rdev)
62 {
63 uint32_t tmp;
64 int r;
65
66 /* Initialize common gart structure */
67 r = radeon_gart_init(rdev);
68 if (r) {
69 return r;
70 }
71 if (rdev->gart.table.ram.ptr == NULL) {
72 rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
73 r = radeon_gart_table_ram_alloc(rdev);
74 if (r) {
75 return r;
76 }
77 }
78 /* discard memory request outside of configured range */
79 tmp = RREG32(RADEON_AIC_CNTL) | RADEON_DIS_OUT_OF_PCI_GART_ACCESS;
80 WREG32(RADEON_AIC_CNTL, tmp);
81 /* set address range for PCI address translate */
82 WREG32(RADEON_AIC_LO_ADDR, rdev->mc.gtt_location);
83 tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
84 WREG32(RADEON_AIC_HI_ADDR, tmp);
85 /* Enable bus mastering */
86 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
87 WREG32(RADEON_BUS_CNTL, tmp);
88 /* set PCI GART page-table base address */
89 WREG32(RADEON_AIC_PT_BASE, rdev->gart.table_addr);
90 tmp = RREG32(RADEON_AIC_CNTL) | RADEON_PCIGART_TRANSLATE_EN;
91 WREG32(RADEON_AIC_CNTL, tmp);
92 r100_pci_gart_tlb_flush(rdev);
93 rdev->gart.ready = true;
94 return 0;
95 }
96
97 void r100_pci_gart_disable(struct radeon_device *rdev)
98 {
99 uint32_t tmp;
100
101 /* discard memory request outside of configured range */
102 tmp = RREG32(RADEON_AIC_CNTL) | RADEON_DIS_OUT_OF_PCI_GART_ACCESS;
103 WREG32(RADEON_AIC_CNTL, tmp & ~RADEON_PCIGART_TRANSLATE_EN);
104 WREG32(RADEON_AIC_LO_ADDR, 0);
105 WREG32(RADEON_AIC_HI_ADDR, 0);
106 }
107
108 int r100_pci_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
109 {
110 if (i < 0 || i > rdev->gart.num_gpu_pages) {
111 return -EINVAL;
112 }
113 rdev->gart.table.ram.ptr[i] = cpu_to_le32(lower_32_bits(addr));
114 return 0;
115 }
116
117 int r100_gart_enable(struct radeon_device *rdev)
118 {
119 if (rdev->flags & RADEON_IS_AGP) {
120 r100_pci_gart_disable(rdev);
121 return 0;
122 }
123 return r100_pci_gart_enable(rdev);
124 }
125
126
127 /*
128 * MC
129 */
130 void r100_mc_disable_clients(struct radeon_device *rdev)
131 {
132 uint32_t ov0_scale_cntl, crtc_ext_cntl, crtc_gen_cntl, crtc2_gen_cntl;
133
134 /* FIXME: is this function correct for rs100,rs200,rs300 ? */
135 if (r100_gui_wait_for_idle(rdev)) {
136 printk(KERN_WARNING "Failed to wait GUI idle while "
137 "programming pipes. Bad things might happen.\n");
138 }
139
140 /* stop display and memory access */
141 ov0_scale_cntl = RREG32(RADEON_OV0_SCALE_CNTL);
142 WREG32(RADEON_OV0_SCALE_CNTL, ov0_scale_cntl & ~RADEON_SCALER_ENABLE);
143 crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
144 WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl | RADEON_CRTC_DISPLAY_DIS);
145 crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL);
146
147 r100_gpu_wait_for_vsync(rdev);
148
149 WREG32(RADEON_CRTC_GEN_CNTL,
150 (crtc_gen_cntl & ~(RADEON_CRTC_CUR_EN | RADEON_CRTC_ICON_EN)) |
151 RADEON_CRTC_DISP_REQ_EN_B | RADEON_CRTC_EXT_DISP_EN);
152
153 if (!(rdev->flags & RADEON_SINGLE_CRTC)) {
154 crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
155
156 r100_gpu_wait_for_vsync2(rdev);
157 WREG32(RADEON_CRTC2_GEN_CNTL,
158 (crtc2_gen_cntl &
159 ~(RADEON_CRTC2_CUR_EN | RADEON_CRTC2_ICON_EN)) |
160 RADEON_CRTC2_DISP_REQ_EN_B);
161 }
162
163 udelay(500);
164 }
165
166 void r100_mc_setup(struct radeon_device *rdev)
167 {
168 uint32_t tmp;
169 int r;
170
171 r = r100_debugfs_mc_info_init(rdev);
172 if (r) {
173 DRM_ERROR("Failed to register debugfs file for R100 MC !\n");
174 }
175 /* Write VRAM size in case we are limiting it */
176 WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
177 /* Novell bug 204882 for RN50/M6/M7 with 8/16/32MB VRAM,
178 * if the aperture is 64MB but we have 32MB VRAM
179 * we report only 32MB VRAM but we have to set MC_FB_LOCATION
180 * to 64MB, otherwise the gpu accidentially dies */
181 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
182 tmp = REG_SET(RADEON_MC_FB_TOP, tmp >> 16);
183 tmp |= REG_SET(RADEON_MC_FB_START, rdev->mc.vram_location >> 16);
184 WREG32(RADEON_MC_FB_LOCATION, tmp);
185
186 /* Enable bus mastering */
187 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
188 WREG32(RADEON_BUS_CNTL, tmp);
189
190 if (rdev->flags & RADEON_IS_AGP) {
191 tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
192 tmp = REG_SET(RADEON_MC_AGP_TOP, tmp >> 16);
193 tmp |= REG_SET(RADEON_MC_AGP_START, rdev->mc.gtt_location >> 16);
194 WREG32(RADEON_MC_AGP_LOCATION, tmp);
195 WREG32(RADEON_AGP_BASE, rdev->mc.agp_base);
196 } else {
197 WREG32(RADEON_MC_AGP_LOCATION, 0x0FFFFFFF);
198 WREG32(RADEON_AGP_BASE, 0);
199 }
200
201 tmp = RREG32(RADEON_HOST_PATH_CNTL) & RADEON_HDP_APER_CNTL;
202 tmp |= (7 << 28);
203 WREG32(RADEON_HOST_PATH_CNTL, tmp | RADEON_HDP_SOFT_RESET | RADEON_HDP_READ_BUFFER_INVALIDATE);
204 (void)RREG32(RADEON_HOST_PATH_CNTL);
205 WREG32(RADEON_HOST_PATH_CNTL, tmp);
206 (void)RREG32(RADEON_HOST_PATH_CNTL);
207 }
208
209 int r100_mc_init(struct radeon_device *rdev)
210 {
211 int r;
212
213 if (r100_debugfs_rbbm_init(rdev)) {
214 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
215 }
216
217 r100_gpu_init(rdev);
218 /* Disable gart which also disable out of gart access */
219 r100_pci_gart_disable(rdev);
220
221 /* Setup GPU memory space */
222 rdev->mc.gtt_location = 0xFFFFFFFFUL;
223 if (rdev->flags & RADEON_IS_AGP) {
224 r = radeon_agp_init(rdev);
225 if (r) {
226 printk(KERN_WARNING "[drm] Disabling AGP\n");
227 rdev->flags &= ~RADEON_IS_AGP;
228 rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
229 } else {
230 rdev->mc.gtt_location = rdev->mc.agp_base;
231 }
232 }
233 r = radeon_mc_setup(rdev);
234 if (r) {
235 return r;
236 }
237
238 r100_mc_disable_clients(rdev);
239 if (r100_mc_wait_for_idle(rdev)) {
240 printk(KERN_WARNING "Failed to wait MC idle while "
241 "programming pipes. Bad things might happen.\n");
242 }
243
244 r100_mc_setup(rdev);
245 return 0;
246 }
247
248 void r100_mc_fini(struct radeon_device *rdev)
249 {
250 r100_pci_gart_disable(rdev);
251 radeon_gart_table_ram_free(rdev);
252 radeon_gart_fini(rdev);
253 }
254
255
256 /*
257 * Interrupts
258 */
259 int r100_irq_set(struct radeon_device *rdev)
260 {
261 uint32_t tmp = 0;
262
263 if (rdev->irq.sw_int) {
264 tmp |= RADEON_SW_INT_ENABLE;
265 }
266 if (rdev->irq.crtc_vblank_int[0]) {
267 tmp |= RADEON_CRTC_VBLANK_MASK;
268 }
269 if (rdev->irq.crtc_vblank_int[1]) {
270 tmp |= RADEON_CRTC2_VBLANK_MASK;
271 }
272 WREG32(RADEON_GEN_INT_CNTL, tmp);
273 return 0;
274 }
275
276 static inline uint32_t r100_irq_ack(struct radeon_device *rdev)
277 {
278 uint32_t irqs = RREG32(RADEON_GEN_INT_STATUS);
279 uint32_t irq_mask = RADEON_SW_INT_TEST | RADEON_CRTC_VBLANK_STAT |
280 RADEON_CRTC2_VBLANK_STAT;
281
282 if (irqs) {
283 WREG32(RADEON_GEN_INT_STATUS, irqs);
284 }
285 return irqs & irq_mask;
286 }
287
288 int r100_irq_process(struct radeon_device *rdev)
289 {
290 uint32_t status;
291
292 status = r100_irq_ack(rdev);
293 if (!status) {
294 return IRQ_NONE;
295 }
296 while (status) {
297 /* SW interrupt */
298 if (status & RADEON_SW_INT_TEST) {
299 radeon_fence_process(rdev);
300 }
301 /* Vertical blank interrupts */
302 if (status & RADEON_CRTC_VBLANK_STAT) {
303 drm_handle_vblank(rdev->ddev, 0);
304 }
305 if (status & RADEON_CRTC2_VBLANK_STAT) {
306 drm_handle_vblank(rdev->ddev, 1);
307 }
308 status = r100_irq_ack(rdev);
309 }
310 return IRQ_HANDLED;
311 }
312
313 u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc)
314 {
315 if (crtc == 0)
316 return RREG32(RADEON_CRTC_CRNT_FRAME);
317 else
318 return RREG32(RADEON_CRTC2_CRNT_FRAME);
319 }
320
321
322 /*
323 * Fence emission
324 */
325 void r100_fence_ring_emit(struct radeon_device *rdev,
326 struct radeon_fence *fence)
327 {
328 /* Who ever call radeon_fence_emit should call ring_lock and ask
329 * for enough space (today caller are ib schedule and buffer move) */
330 /* Wait until IDLE & CLEAN */
331 radeon_ring_write(rdev, PACKET0(0x1720, 0));
332 radeon_ring_write(rdev, (1 << 16) | (1 << 17));
333 /* Emit fence sequence & fire IRQ */
334 radeon_ring_write(rdev, PACKET0(rdev->fence_drv.scratch_reg, 0));
335 radeon_ring_write(rdev, fence->seq);
336 radeon_ring_write(rdev, PACKET0(RADEON_GEN_INT_STATUS, 0));
337 radeon_ring_write(rdev, RADEON_SW_INT_FIRE);
338 }
339
340
341 /*
342 * Writeback
343 */
344 int r100_wb_init(struct radeon_device *rdev)
345 {
346 int r;
347
348 if (rdev->wb.wb_obj == NULL) {
349 r = radeon_object_create(rdev, NULL, 4096,
350 true,
351 RADEON_GEM_DOMAIN_GTT,
352 false, &rdev->wb.wb_obj);
353 if (r) {
354 DRM_ERROR("radeon: failed to create WB buffer (%d).\n", r);
355 return r;
356 }
357 r = radeon_object_pin(rdev->wb.wb_obj,
358 RADEON_GEM_DOMAIN_GTT,
359 &rdev->wb.gpu_addr);
360 if (r) {
361 DRM_ERROR("radeon: failed to pin WB buffer (%d).\n", r);
362 return r;
363 }
364 r = radeon_object_kmap(rdev->wb.wb_obj, (void **)&rdev->wb.wb);
365 if (r) {
366 DRM_ERROR("radeon: failed to map WB buffer (%d).\n", r);
367 return r;
368 }
369 }
370 WREG32(0x774, rdev->wb.gpu_addr);
371 WREG32(0x70C, rdev->wb.gpu_addr + 1024);
372 WREG32(0x770, 0xff);
373 return 0;
374 }
375
376 void r100_wb_fini(struct radeon_device *rdev)
377 {
378 if (rdev->wb.wb_obj) {
379 radeon_object_kunmap(rdev->wb.wb_obj);
380 radeon_object_unpin(rdev->wb.wb_obj);
381 radeon_object_unref(&rdev->wb.wb_obj);
382 rdev->wb.wb = NULL;
383 rdev->wb.wb_obj = NULL;
384 }
385 }
386
387 int r100_copy_blit(struct radeon_device *rdev,
388 uint64_t src_offset,
389 uint64_t dst_offset,
390 unsigned num_pages,
391 struct radeon_fence *fence)
392 {
393 uint32_t cur_pages;
394 uint32_t stride_bytes = PAGE_SIZE;
395 uint32_t pitch;
396 uint32_t stride_pixels;
397 unsigned ndw;
398 int num_loops;
399 int r = 0;
400
401 /* radeon limited to 16k stride */
402 stride_bytes &= 0x3fff;
403 /* radeon pitch is /64 */
404 pitch = stride_bytes / 64;
405 stride_pixels = stride_bytes / 4;
406 num_loops = DIV_ROUND_UP(num_pages, 8191);
407
408 /* Ask for enough room for blit + flush + fence */
409 ndw = 64 + (10 * num_loops);
410 r = radeon_ring_lock(rdev, ndw);
411 if (r) {
412 DRM_ERROR("radeon: moving bo (%d) asking for %u dw.\n", r, ndw);
413 return -EINVAL;
414 }
415 while (num_pages > 0) {
416 cur_pages = num_pages;
417 if (cur_pages > 8191) {
418 cur_pages = 8191;
419 }
420 num_pages -= cur_pages;
421
422 /* pages are in Y direction - height
423 page width in X direction - width */
424 radeon_ring_write(rdev, PACKET3(PACKET3_BITBLT_MULTI, 8));
425 radeon_ring_write(rdev,
426 RADEON_GMC_SRC_PITCH_OFFSET_CNTL |
427 RADEON_GMC_DST_PITCH_OFFSET_CNTL |
428 RADEON_GMC_SRC_CLIPPING |
429 RADEON_GMC_DST_CLIPPING |
430 RADEON_GMC_BRUSH_NONE |
431 (RADEON_COLOR_FORMAT_ARGB8888 << 8) |
432 RADEON_GMC_SRC_DATATYPE_COLOR |
433 RADEON_ROP3_S |
434 RADEON_DP_SRC_SOURCE_MEMORY |
435 RADEON_GMC_CLR_CMP_CNTL_DIS |
436 RADEON_GMC_WR_MSK_DIS);
437 radeon_ring_write(rdev, (pitch << 22) | (src_offset >> 10));
438 radeon_ring_write(rdev, (pitch << 22) | (dst_offset >> 10));
439 radeon_ring_write(rdev, (0x1fff) | (0x1fff << 16));
440 radeon_ring_write(rdev, 0);
441 radeon_ring_write(rdev, (0x1fff) | (0x1fff << 16));
442 radeon_ring_write(rdev, num_pages);
443 radeon_ring_write(rdev, num_pages);
444 radeon_ring_write(rdev, cur_pages | (stride_pixels << 16));
445 }
446 radeon_ring_write(rdev, PACKET0(RADEON_DSTCACHE_CTLSTAT, 0));
447 radeon_ring_write(rdev, RADEON_RB2D_DC_FLUSH_ALL);
448 radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
449 radeon_ring_write(rdev,
450 RADEON_WAIT_2D_IDLECLEAN |
451 RADEON_WAIT_HOST_IDLECLEAN |
452 RADEON_WAIT_DMA_GUI_IDLE);
453 if (fence) {
454 r = radeon_fence_emit(rdev, fence);
455 }
456 radeon_ring_unlock_commit(rdev);
457 return r;
458 }
459
460
461 /*
462 * CP
463 */
464 void r100_ring_start(struct radeon_device *rdev)
465 {
466 int r;
467
468 r = radeon_ring_lock(rdev, 2);
469 if (r) {
470 return;
471 }
472 radeon_ring_write(rdev, PACKET0(RADEON_ISYNC_CNTL, 0));
473 radeon_ring_write(rdev,
474 RADEON_ISYNC_ANY2D_IDLE3D |
475 RADEON_ISYNC_ANY3D_IDLE2D |
476 RADEON_ISYNC_WAIT_IDLEGUI |
477 RADEON_ISYNC_CPSCRATCH_IDLEGUI);
478 radeon_ring_unlock_commit(rdev);
479 }
480
481 static void r100_cp_load_microcode(struct radeon_device *rdev)
482 {
483 int i;
484
485 if (r100_gui_wait_for_idle(rdev)) {
486 printk(KERN_WARNING "Failed to wait GUI idle while "
487 "programming pipes. Bad things might happen.\n");
488 }
489
490 WREG32(RADEON_CP_ME_RAM_ADDR, 0);
491 if ((rdev->family == CHIP_R100) || (rdev->family == CHIP_RV100) ||
492 (rdev->family == CHIP_RV200) || (rdev->family == CHIP_RS100) ||
493 (rdev->family == CHIP_RS200)) {
494 DRM_INFO("Loading R100 Microcode\n");
495 for (i = 0; i < 256; i++) {
496 WREG32(RADEON_CP_ME_RAM_DATAH, R100_cp_microcode[i][1]);
497 WREG32(RADEON_CP_ME_RAM_DATAL, R100_cp_microcode[i][0]);
498 }
499 } else if ((rdev->family == CHIP_R200) ||
500 (rdev->family == CHIP_RV250) ||
501 (rdev->family == CHIP_RV280) ||
502 (rdev->family == CHIP_RS300)) {
503 DRM_INFO("Loading R200 Microcode\n");
504 for (i = 0; i < 256; i++) {
505 WREG32(RADEON_CP_ME_RAM_DATAH, R200_cp_microcode[i][1]);
506 WREG32(RADEON_CP_ME_RAM_DATAL, R200_cp_microcode[i][0]);
507 }
508 } else if ((rdev->family == CHIP_R300) ||
509 (rdev->family == CHIP_R350) ||
510 (rdev->family == CHIP_RV350) ||
511 (rdev->family == CHIP_RV380) ||
512 (rdev->family == CHIP_RS400) ||
513 (rdev->family == CHIP_RS480)) {
514 DRM_INFO("Loading R300 Microcode\n");
515 for (i = 0; i < 256; i++) {
516 WREG32(RADEON_CP_ME_RAM_DATAH, R300_cp_microcode[i][1]);
517 WREG32(RADEON_CP_ME_RAM_DATAL, R300_cp_microcode[i][0]);
518 }
519 } else if ((rdev->family == CHIP_R420) ||
520 (rdev->family == CHIP_R423) ||
521 (rdev->family == CHIP_RV410)) {
522 DRM_INFO("Loading R400 Microcode\n");
523 for (i = 0; i < 256; i++) {
524 WREG32(RADEON_CP_ME_RAM_DATAH, R420_cp_microcode[i][1]);
525 WREG32(RADEON_CP_ME_RAM_DATAL, R420_cp_microcode[i][0]);
526 }
527 } else if ((rdev->family == CHIP_RS690) ||
528 (rdev->family == CHIP_RS740)) {
529 DRM_INFO("Loading RS690/RS740 Microcode\n");
530 for (i = 0; i < 256; i++) {
531 WREG32(RADEON_CP_ME_RAM_DATAH, RS690_cp_microcode[i][1]);
532 WREG32(RADEON_CP_ME_RAM_DATAL, RS690_cp_microcode[i][0]);
533 }
534 } else if (rdev->family == CHIP_RS600) {
535 DRM_INFO("Loading RS600 Microcode\n");
536 for (i = 0; i < 256; i++) {
537 WREG32(RADEON_CP_ME_RAM_DATAH, RS600_cp_microcode[i][1]);
538 WREG32(RADEON_CP_ME_RAM_DATAL, RS600_cp_microcode[i][0]);
539 }
540 } else if ((rdev->family == CHIP_RV515) ||
541 (rdev->family == CHIP_R520) ||
542 (rdev->family == CHIP_RV530) ||
543 (rdev->family == CHIP_R580) ||
544 (rdev->family == CHIP_RV560) ||
545 (rdev->family == CHIP_RV570)) {
546 DRM_INFO("Loading R500 Microcode\n");
547 for (i = 0; i < 256; i++) {
548 WREG32(RADEON_CP_ME_RAM_DATAH, R520_cp_microcode[i][1]);
549 WREG32(RADEON_CP_ME_RAM_DATAL, R520_cp_microcode[i][0]);
550 }
551 }
552 }
553
554 int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
555 {
556 unsigned rb_bufsz;
557 unsigned rb_blksz;
558 unsigned max_fetch;
559 unsigned pre_write_timer;
560 unsigned pre_write_limit;
561 unsigned indirect2_start;
562 unsigned indirect1_start;
563 uint32_t tmp;
564 int r;
565
566 if (r100_debugfs_cp_init(rdev)) {
567 DRM_ERROR("Failed to register debugfs file for CP !\n");
568 }
569 /* Reset CP */
570 tmp = RREG32(RADEON_CP_CSQ_STAT);
571 if ((tmp & (1 << 31))) {
572 DRM_INFO("radeon: cp busy (0x%08X) resetting\n", tmp);
573 WREG32(RADEON_CP_CSQ_MODE, 0);
574 WREG32(RADEON_CP_CSQ_CNTL, 0);
575 WREG32(RADEON_RBBM_SOFT_RESET, RADEON_SOFT_RESET_CP);
576 tmp = RREG32(RADEON_RBBM_SOFT_RESET);
577 mdelay(2);
578 WREG32(RADEON_RBBM_SOFT_RESET, 0);
579 tmp = RREG32(RADEON_RBBM_SOFT_RESET);
580 mdelay(2);
581 tmp = RREG32(RADEON_CP_CSQ_STAT);
582 if ((tmp & (1 << 31))) {
583 DRM_INFO("radeon: cp reset failed (0x%08X)\n", tmp);
584 }
585 } else {
586 DRM_INFO("radeon: cp idle (0x%08X)\n", tmp);
587 }
588 /* Align ring size */
589 rb_bufsz = drm_order(ring_size / 8);
590 ring_size = (1 << (rb_bufsz + 1)) * 4;
591 r100_cp_load_microcode(rdev);
592 r = radeon_ring_init(rdev, ring_size);
593 if (r) {
594 return r;
595 }
596 /* Each time the cp read 1024 bytes (16 dword/quadword) update
597 * the rptr copy in system ram */
598 rb_blksz = 9;
599 /* cp will read 128bytes at a time (4 dwords) */
600 max_fetch = 1;
601 rdev->cp.align_mask = 16 - 1;
602 /* Write to CP_RB_WPTR will be delayed for pre_write_timer clocks */
603 pre_write_timer = 64;
604 /* Force CP_RB_WPTR write if written more than one time before the
605 * delay expire
606 */
607 pre_write_limit = 0;
608 /* Setup the cp cache like this (cache size is 96 dwords) :
609 * RING 0 to 15
610 * INDIRECT1 16 to 79
611 * INDIRECT2 80 to 95
612 * So ring cache size is 16dwords (> (2 * max_fetch = 2 * 4dwords))
613 * indirect1 cache size is 64dwords (> (2 * max_fetch = 2 * 4dwords))
614 * indirect2 cache size is 16dwords (> (2 * max_fetch = 2 * 4dwords))
615 * Idea being that most of the gpu cmd will be through indirect1 buffer
616 * so it gets the bigger cache.
617 */
618 indirect2_start = 80;
619 indirect1_start = 16;
620 /* cp setup */
621 WREG32(0x718, pre_write_timer | (pre_write_limit << 28));
622 WREG32(RADEON_CP_RB_CNTL,
623 #ifdef __BIG_ENDIAN
624 RADEON_BUF_SWAP_32BIT |
625 #endif
626 REG_SET(RADEON_RB_BUFSZ, rb_bufsz) |
627 REG_SET(RADEON_RB_BLKSZ, rb_blksz) |
628 REG_SET(RADEON_MAX_FETCH, max_fetch) |
629 RADEON_RB_NO_UPDATE);
630 /* Set ring address */
631 DRM_INFO("radeon: ring at 0x%016lX\n", (unsigned long)rdev->cp.gpu_addr);
632 WREG32(RADEON_CP_RB_BASE, rdev->cp.gpu_addr);
633 /* Force read & write ptr to 0 */
634 tmp = RREG32(RADEON_CP_RB_CNTL);
635 WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
636 WREG32(RADEON_CP_RB_RPTR_WR, 0);
637 WREG32(RADEON_CP_RB_WPTR, 0);
638 WREG32(RADEON_CP_RB_CNTL, tmp);
639 udelay(10);
640 rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
641 rdev->cp.wptr = RREG32(RADEON_CP_RB_WPTR);
642 /* Set cp mode to bus mastering & enable cp*/
643 WREG32(RADEON_CP_CSQ_MODE,
644 REG_SET(RADEON_INDIRECT2_START, indirect2_start) |
645 REG_SET(RADEON_INDIRECT1_START, indirect1_start));
646 WREG32(0x718, 0);
647 WREG32(0x744, 0x00004D4D);
648 WREG32(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIBM_INDBM);
649 radeon_ring_start(rdev);
650 r = radeon_ring_test(rdev);
651 if (r) {
652 DRM_ERROR("radeon: cp isn't working (%d).\n", r);
653 return r;
654 }
655 rdev->cp.ready = true;
656 return 0;
657 }
658
659 void r100_cp_fini(struct radeon_device *rdev)
660 {
661 /* Disable ring */
662 rdev->cp.ready = false;
663 WREG32(RADEON_CP_CSQ_CNTL, 0);
664 radeon_ring_fini(rdev);
665 DRM_INFO("radeon: cp finalized\n");
666 }
667
668 void r100_cp_disable(struct radeon_device *rdev)
669 {
670 /* Disable ring */
671 rdev->cp.ready = false;
672 WREG32(RADEON_CP_CSQ_MODE, 0);
673 WREG32(RADEON_CP_CSQ_CNTL, 0);
674 if (r100_gui_wait_for_idle(rdev)) {
675 printk(KERN_WARNING "Failed to wait GUI idle while "
676 "programming pipes. Bad things might happen.\n");
677 }
678 }
679
680 int r100_cp_reset(struct radeon_device *rdev)
681 {
682 uint32_t tmp;
683 bool reinit_cp;
684 int i;
685
686 reinit_cp = rdev->cp.ready;
687 rdev->cp.ready = false;
688 WREG32(RADEON_CP_CSQ_MODE, 0);
689 WREG32(RADEON_CP_CSQ_CNTL, 0);
690 WREG32(RADEON_RBBM_SOFT_RESET, RADEON_SOFT_RESET_CP);
691 (void)RREG32(RADEON_RBBM_SOFT_RESET);
692 udelay(200);
693 WREG32(RADEON_RBBM_SOFT_RESET, 0);
694 /* Wait to prevent race in RBBM_STATUS */
695 mdelay(1);
696 for (i = 0; i < rdev->usec_timeout; i++) {
697 tmp = RREG32(RADEON_RBBM_STATUS);
698 if (!(tmp & (1 << 16))) {
699 DRM_INFO("CP reset succeed (RBBM_STATUS=0x%08X)\n",
700 tmp);
701 if (reinit_cp) {
702 return r100_cp_init(rdev, rdev->cp.ring_size);
703 }
704 return 0;
705 }
706 DRM_UDELAY(1);
707 }
708 tmp = RREG32(RADEON_RBBM_STATUS);
709 DRM_ERROR("Failed to reset CP (RBBM_STATUS=0x%08X)!\n", tmp);
710 return -1;
711 }
712
713
714 /*
715 * CS functions
716 */
717 int r100_cs_parse_packet0(struct radeon_cs_parser *p,
718 struct radeon_cs_packet *pkt,
719 const unsigned *auth, unsigned n,
720 radeon_packet0_check_t check)
721 {
722 unsigned reg;
723 unsigned i, j, m;
724 unsigned idx;
725 int r;
726
727 idx = pkt->idx + 1;
728 reg = pkt->reg;
729 /* Check that register fall into register range
730 * determined by the number of entry (n) in the
731 * safe register bitmap.
732 */
733 if (pkt->one_reg_wr) {
734 if ((reg >> 7) > n) {
735 return -EINVAL;
736 }
737 } else {
738 if (((reg + (pkt->count << 2)) >> 7) > n) {
739 return -EINVAL;
740 }
741 }
742 for (i = 0; i <= pkt->count; i++, idx++) {
743 j = (reg >> 7);
744 m = 1 << ((reg >> 2) & 31);
745 if (auth[j] & m) {
746 r = check(p, pkt, idx, reg);
747 if (r) {
748 return r;
749 }
750 }
751 if (pkt->one_reg_wr) {
752 if (!(auth[j] & m)) {
753 break;
754 }
755 } else {
756 reg += 4;
757 }
758 }
759 return 0;
760 }
761
762 void r100_cs_dump_packet(struct radeon_cs_parser *p,
763 struct radeon_cs_packet *pkt)
764 {
765 struct radeon_cs_chunk *ib_chunk;
766 volatile uint32_t *ib;
767 unsigned i;
768 unsigned idx;
769
770 ib = p->ib->ptr;
771 ib_chunk = &p->chunks[p->chunk_ib_idx];
772 idx = pkt->idx;
773 for (i = 0; i <= (pkt->count + 1); i++, idx++) {
774 DRM_INFO("ib[%d]=0x%08X\n", idx, ib[idx]);
775 }
776 }
777
778 /**
779 * r100_cs_packet_parse() - parse cp packet and point ib index to next packet
780 * @parser: parser structure holding parsing context.
781 * @pkt: where to store packet informations
782 *
783 * Assume that chunk_ib_index is properly set. Will return -EINVAL
784 * if packet is bigger than remaining ib size. or if packets is unknown.
785 **/
786 int r100_cs_packet_parse(struct radeon_cs_parser *p,
787 struct radeon_cs_packet *pkt,
788 unsigned idx)
789 {
790 struct radeon_cs_chunk *ib_chunk = &p->chunks[p->chunk_ib_idx];
791 uint32_t header;
792
793 if (idx >= ib_chunk->length_dw) {
794 DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
795 idx, ib_chunk->length_dw);
796 return -EINVAL;
797 }
798 header = ib_chunk->kdata[idx];
799 pkt->idx = idx;
800 pkt->type = CP_PACKET_GET_TYPE(header);
801 pkt->count = CP_PACKET_GET_COUNT(header);
802 switch (pkt->type) {
803 case PACKET_TYPE0:
804 pkt->reg = CP_PACKET0_GET_REG(header);
805 pkt->one_reg_wr = CP_PACKET0_GET_ONE_REG_WR(header);
806 break;
807 case PACKET_TYPE3:
808 pkt->opcode = CP_PACKET3_GET_OPCODE(header);
809 break;
810 case PACKET_TYPE2:
811 pkt->count = -1;
812 break;
813 default:
814 DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
815 return -EINVAL;
816 }
817 if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
818 DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
819 pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
820 return -EINVAL;
821 }
822 return 0;
823 }
824
825 /**
826 * r100_cs_packet_next_vline() - parse userspace VLINE packet
827 * @parser: parser structure holding parsing context.
828 *
829 * Userspace sends a special sequence for VLINE waits.
830 * PACKET0 - VLINE_START_END + value
831 * PACKET0 - WAIT_UNTIL +_value
832 * RELOC (P3) - crtc_id in reloc.
833 *
834 * This function parses this and relocates the VLINE START END
835 * and WAIT UNTIL packets to the correct crtc.
836 * It also detects a switched off crtc and nulls out the
837 * wait in that case.
838 */
839 int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
840 {
841 struct radeon_cs_chunk *ib_chunk;
842 struct drm_mode_object *obj;
843 struct drm_crtc *crtc;
844 struct radeon_crtc *radeon_crtc;
845 struct radeon_cs_packet p3reloc, waitreloc;
846 int crtc_id;
847 int r;
848 uint32_t header, h_idx, reg;
849
850 ib_chunk = &p->chunks[p->chunk_ib_idx];
851
852 /* parse the wait until */
853 r = r100_cs_packet_parse(p, &waitreloc, p->idx);
854 if (r)
855 return r;
856
857 /* check its a wait until and only 1 count */
858 if (waitreloc.reg != RADEON_WAIT_UNTIL ||
859 waitreloc.count != 0) {
860 DRM_ERROR("vline wait had illegal wait until segment\n");
861 r = -EINVAL;
862 return r;
863 }
864
865 if (ib_chunk->kdata[waitreloc.idx + 1] != RADEON_WAIT_CRTC_VLINE) {
866 DRM_ERROR("vline wait had illegal wait until\n");
867 r = -EINVAL;
868 return r;
869 }
870
871 /* jump over the NOP */
872 r = r100_cs_packet_parse(p, &p3reloc, p->idx);
873 if (r)
874 return r;
875
876 h_idx = p->idx - 2;
877 p->idx += waitreloc.count;
878 p->idx += p3reloc.count;
879
880 header = ib_chunk->kdata[h_idx];
881 crtc_id = ib_chunk->kdata[h_idx + 5];
882 reg = ib_chunk->kdata[h_idx] >> 2;
883 mutex_lock(&p->rdev->ddev->mode_config.mutex);
884 obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
885 if (!obj) {
886 DRM_ERROR("cannot find crtc %d\n", crtc_id);
887 r = -EINVAL;
888 goto out;
889 }
890 crtc = obj_to_crtc(obj);
891 radeon_crtc = to_radeon_crtc(crtc);
892 crtc_id = radeon_crtc->crtc_id;
893
894 if (!crtc->enabled) {
895 /* if the CRTC isn't enabled - we need to nop out the wait until */
896 ib_chunk->kdata[h_idx + 2] = PACKET2(0);
897 ib_chunk->kdata[h_idx + 3] = PACKET2(0);
898 } else if (crtc_id == 1) {
899 switch (reg) {
900 case AVIVO_D1MODE_VLINE_START_END:
901 header &= R300_CP_PACKET0_REG_MASK;
902 header |= AVIVO_D2MODE_VLINE_START_END >> 2;
903 break;
904 case RADEON_CRTC_GUI_TRIG_VLINE:
905 header &= R300_CP_PACKET0_REG_MASK;
906 header |= RADEON_CRTC2_GUI_TRIG_VLINE >> 2;
907 break;
908 default:
909 DRM_ERROR("unknown crtc reloc\n");
910 r = -EINVAL;
911 goto out;
912 }
913 ib_chunk->kdata[h_idx] = header;
914 ib_chunk->kdata[h_idx + 3] |= RADEON_ENG_DISPLAY_SELECT_CRTC1;
915 }
916 out:
917 mutex_unlock(&p->rdev->ddev->mode_config.mutex);
918 return r;
919 }
920
921 /**
922 * r100_cs_packet_next_reloc() - parse next packet which should be reloc packet3
923 * @parser: parser structure holding parsing context.
924 * @data: pointer to relocation data
925 * @offset_start: starting offset
926 * @offset_mask: offset mask (to align start offset on)
927 * @reloc: reloc informations
928 *
929 * Check next packet is relocation packet3, do bo validation and compute
930 * GPU offset using the provided start.
931 **/
932 int r100_cs_packet_next_reloc(struct radeon_cs_parser *p,
933 struct radeon_cs_reloc **cs_reloc)
934 {
935 struct radeon_cs_chunk *ib_chunk;
936 struct radeon_cs_chunk *relocs_chunk;
937 struct radeon_cs_packet p3reloc;
938 unsigned idx;
939 int r;
940
941 if (p->chunk_relocs_idx == -1) {
942 DRM_ERROR("No relocation chunk !\n");
943 return -EINVAL;
944 }
945 *cs_reloc = NULL;
946 ib_chunk = &p->chunks[p->chunk_ib_idx];
947 relocs_chunk = &p->chunks[p->chunk_relocs_idx];
948 r = r100_cs_packet_parse(p, &p3reloc, p->idx);
949 if (r) {
950 return r;
951 }
952 p->idx += p3reloc.count + 2;
953 if (p3reloc.type != PACKET_TYPE3 || p3reloc.opcode != PACKET3_NOP) {
954 DRM_ERROR("No packet3 for relocation for packet at %d.\n",
955 p3reloc.idx);
956 r100_cs_dump_packet(p, &p3reloc);
957 return -EINVAL;
958 }
959 idx = ib_chunk->kdata[p3reloc.idx + 1];
960 if (idx >= relocs_chunk->length_dw) {
961 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
962 idx, relocs_chunk->length_dw);
963 r100_cs_dump_packet(p, &p3reloc);
964 return -EINVAL;
965 }
966 /* FIXME: we assume reloc size is 4 dwords */
967 *cs_reloc = p->relocs_ptr[(idx / 4)];
968 return 0;
969 }
970
971 static int r100_packet0_check(struct radeon_cs_parser *p,
972 struct radeon_cs_packet *pkt)
973 {
974 struct radeon_cs_chunk *ib_chunk;
975 struct radeon_cs_reloc *reloc;
976 volatile uint32_t *ib;
977 uint32_t tmp;
978 unsigned reg;
979 unsigned i;
980 unsigned idx;
981 bool onereg;
982 int r;
983 u32 tile_flags = 0;
984
985 ib = p->ib->ptr;
986 ib_chunk = &p->chunks[p->chunk_ib_idx];
987 idx = pkt->idx + 1;
988 reg = pkt->reg;
989 onereg = false;
990 if (CP_PACKET0_GET_ONE_REG_WR(ib_chunk->kdata[pkt->idx])) {
991 onereg = true;
992 }
993 for (i = 0; i <= pkt->count; i++, idx++, reg += 4) {
994 switch (reg) {
995 case RADEON_CRTC_GUI_TRIG_VLINE:
996 r = r100_cs_packet_parse_vline(p);
997 if (r) {
998 DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
999 idx, reg);
1000 r100_cs_dump_packet(p, pkt);
1001 return r;
1002 }
1003 break;
1004 /* FIXME: only allow PACKET3 blit? easier to check for out of
1005 * range access */
1006 case RADEON_DST_PITCH_OFFSET:
1007 case RADEON_SRC_PITCH_OFFSET:
1008 r = r100_cs_packet_next_reloc(p, &reloc);
1009 if (r) {
1010 DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1011 idx, reg);
1012 r100_cs_dump_packet(p, pkt);
1013 return r;
1014 }
1015 tmp = ib_chunk->kdata[idx] & 0x003fffff;
1016 tmp += (((u32)reloc->lobj.gpu_offset) >> 10);
1017
1018 if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
1019 tile_flags |= RADEON_DST_TILE_MACRO;
1020 if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) {
1021 if (reg == RADEON_SRC_PITCH_OFFSET) {
1022 DRM_ERROR("Cannot src blit from microtiled surface\n");
1023 r100_cs_dump_packet(p, pkt);
1024 return -EINVAL;
1025 }
1026 tile_flags |= RADEON_DST_TILE_MICRO;
1027 }
1028
1029 tmp |= tile_flags;
1030 ib[idx] = (ib_chunk->kdata[idx] & 0x3fc00000) | tmp;
1031 break;
1032 case RADEON_RB3D_DEPTHOFFSET:
1033 case RADEON_RB3D_COLOROFFSET:
1034 case R300_RB3D_COLOROFFSET0:
1035 case R300_ZB_DEPTHOFFSET:
1036 case R200_PP_TXOFFSET_0:
1037 case R200_PP_TXOFFSET_1:
1038 case R200_PP_TXOFFSET_2:
1039 case R200_PP_TXOFFSET_3:
1040 case R200_PP_TXOFFSET_4:
1041 case R200_PP_TXOFFSET_5:
1042 case RADEON_PP_TXOFFSET_0:
1043 case RADEON_PP_TXOFFSET_1:
1044 case RADEON_PP_TXOFFSET_2:
1045 case R300_TX_OFFSET_0:
1046 case R300_TX_OFFSET_0+4:
1047 case R300_TX_OFFSET_0+8:
1048 case R300_TX_OFFSET_0+12:
1049 case R300_TX_OFFSET_0+16:
1050 case R300_TX_OFFSET_0+20:
1051 case R300_TX_OFFSET_0+24:
1052 case R300_TX_OFFSET_0+28:
1053 case R300_TX_OFFSET_0+32:
1054 case R300_TX_OFFSET_0+36:
1055 case R300_TX_OFFSET_0+40:
1056 case R300_TX_OFFSET_0+44:
1057 case R300_TX_OFFSET_0+48:
1058 case R300_TX_OFFSET_0+52:
1059 case R300_TX_OFFSET_0+56:
1060 case R300_TX_OFFSET_0+60:
1061 /* rn50 has no 3D engine so fail on any 3d setup */
1062 if (ASIC_IS_RN50(p->rdev)) {
1063 DRM_ERROR("attempt to use RN50 3D engine failed\n");
1064 return -EINVAL;
1065 }
1066 r = r100_cs_packet_next_reloc(p, &reloc);
1067 if (r) {
1068 DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1069 idx, reg);
1070 r100_cs_dump_packet(p, pkt);
1071 return r;
1072 }
1073 ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
1074 break;
1075 case R300_RB3D_COLORPITCH0:
1076 case RADEON_RB3D_COLORPITCH:
1077 r = r100_cs_packet_next_reloc(p, &reloc);
1078 if (r) {
1079 DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1080 idx, reg);
1081 r100_cs_dump_packet(p, pkt);
1082 return r;
1083 }
1084
1085 if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
1086 tile_flags |= RADEON_COLOR_TILE_ENABLE;
1087 if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
1088 tile_flags |= RADEON_COLOR_MICROTILE_ENABLE;
1089
1090 tmp = ib_chunk->kdata[idx] & ~(0x7 << 16);
1091 tmp |= tile_flags;
1092 ib[idx] = tmp;
1093 break;
1094 default:
1095 /* FIXME: we don't want to allow anyothers packet */
1096 break;
1097 }
1098 if (onereg) {
1099 /* FIXME: forbid onereg write to register on relocate */
1100 break;
1101 }
1102 }
1103 return 0;
1104 }
1105
1106 int r100_cs_track_check_pkt3_indx_buffer(struct radeon_cs_parser *p,
1107 struct radeon_cs_packet *pkt,
1108 struct radeon_object *robj)
1109 {
1110 struct radeon_cs_chunk *ib_chunk;
1111 unsigned idx;
1112
1113 ib_chunk = &p->chunks[p->chunk_ib_idx];
1114 idx = pkt->idx + 1;
1115 if ((ib_chunk->kdata[idx+2] + 1) > radeon_object_size(robj)) {
1116 DRM_ERROR("[drm] Buffer too small for PACKET3 INDX_BUFFER "
1117 "(need %u have %lu) !\n",
1118 ib_chunk->kdata[idx+2] + 1,
1119 radeon_object_size(robj));
1120 return -EINVAL;
1121 }
1122 return 0;
1123 }
1124
1125 static int r100_packet3_check(struct radeon_cs_parser *p,
1126 struct radeon_cs_packet *pkt)
1127 {
1128 struct radeon_cs_chunk *ib_chunk;
1129 struct radeon_cs_reloc *reloc;
1130 unsigned idx;
1131 unsigned i, c;
1132 volatile uint32_t *ib;
1133 int r;
1134
1135 ib = p->ib->ptr;
1136 ib_chunk = &p->chunks[p->chunk_ib_idx];
1137 idx = pkt->idx + 1;
1138 switch (pkt->opcode) {
1139 case PACKET3_3D_LOAD_VBPNTR:
1140 c = ib_chunk->kdata[idx++];
1141 for (i = 0; i < (c - 1); i += 2, idx += 3) {
1142 r = r100_cs_packet_next_reloc(p, &reloc);
1143 if (r) {
1144 DRM_ERROR("No reloc for packet3 %d\n",
1145 pkt->opcode);
1146 r100_cs_dump_packet(p, pkt);
1147 return r;
1148 }
1149 ib[idx+1] = ib_chunk->kdata[idx+1] + ((u32)reloc->lobj.gpu_offset);
1150 r = r100_cs_packet_next_reloc(p, &reloc);
1151 if (r) {
1152 DRM_ERROR("No reloc for packet3 %d\n",
1153 pkt->opcode);
1154 r100_cs_dump_packet(p, pkt);
1155 return r;
1156 }
1157 ib[idx+2] = ib_chunk->kdata[idx+2] + ((u32)reloc->lobj.gpu_offset);
1158 }
1159 if (c & 1) {
1160 r = r100_cs_packet_next_reloc(p, &reloc);
1161 if (r) {
1162 DRM_ERROR("No reloc for packet3 %d\n",
1163 pkt->opcode);
1164 r100_cs_dump_packet(p, pkt);
1165 return r;
1166 }
1167 ib[idx+1] = ib_chunk->kdata[idx+1] + ((u32)reloc->lobj.gpu_offset);
1168 }
1169 break;
1170 case PACKET3_INDX_BUFFER:
1171 r = r100_cs_packet_next_reloc(p, &reloc);
1172 if (r) {
1173 DRM_ERROR("No reloc for packet3 %d\n", pkt->opcode);
1174 r100_cs_dump_packet(p, pkt);
1175 return r;
1176 }
1177 ib[idx+1] = ib_chunk->kdata[idx+1] + ((u32)reloc->lobj.gpu_offset);
1178 r = r100_cs_track_check_pkt3_indx_buffer(p, pkt, reloc->robj);
1179 if (r) {
1180 return r;
1181 }
1182 break;
1183 case 0x23:
1184 /* FIXME: cleanup */
1185 /* 3D_RNDR_GEN_INDX_PRIM on r100/r200 */
1186 r = r100_cs_packet_next_reloc(p, &reloc);
1187 if (r) {
1188 DRM_ERROR("No reloc for packet3 %d\n", pkt->opcode);
1189 r100_cs_dump_packet(p, pkt);
1190 return r;
1191 }
1192 ib[idx] = ib_chunk->kdata[idx] + ((u32)reloc->lobj.gpu_offset);
1193 break;
1194 case PACKET3_3D_DRAW_IMMD:
1195 /* triggers drawing using in-packet vertex data */
1196 case PACKET3_3D_DRAW_IMMD_2:
1197 /* triggers drawing using in-packet vertex data */
1198 case PACKET3_3D_DRAW_VBUF_2:
1199 /* triggers drawing of vertex buffers setup elsewhere */
1200 case PACKET3_3D_DRAW_INDX_2:
1201 /* triggers drawing using indices to vertex buffer */
1202 case PACKET3_3D_DRAW_VBUF:
1203 /* triggers drawing of vertex buffers setup elsewhere */
1204 case PACKET3_3D_DRAW_INDX:
1205 /* triggers drawing using indices to vertex buffer */
1206 case PACKET3_NOP:
1207 break;
1208 default:
1209 DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
1210 return -EINVAL;
1211 }
1212 return 0;
1213 }
1214
1215 int r100_cs_parse(struct radeon_cs_parser *p)
1216 {
1217 struct radeon_cs_packet pkt;
1218 int r;
1219
1220 do {
1221 r = r100_cs_packet_parse(p, &pkt, p->idx);
1222 if (r) {
1223 return r;
1224 }
1225 p->idx += pkt.count + 2;
1226 switch (pkt.type) {
1227 case PACKET_TYPE0:
1228 r = r100_packet0_check(p, &pkt);
1229 break;
1230 case PACKET_TYPE2:
1231 break;
1232 case PACKET_TYPE3:
1233 r = r100_packet3_check(p, &pkt);
1234 break;
1235 default:
1236 DRM_ERROR("Unknown packet type %d !\n",
1237 pkt.type);
1238 return -EINVAL;
1239 }
1240 if (r) {
1241 return r;
1242 }
1243 } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
1244 return 0;
1245 }
1246
1247
1248 /*
1249 * Global GPU functions
1250 */
1251 void r100_errata(struct radeon_device *rdev)
1252 {
1253 rdev->pll_errata = 0;
1254
1255 if (rdev->family == CHIP_RV200 || rdev->family == CHIP_RS200) {
1256 rdev->pll_errata |= CHIP_ERRATA_PLL_DUMMYREADS;
1257 }
1258
1259 if (rdev->family == CHIP_RV100 ||
1260 rdev->family == CHIP_RS100 ||
1261 rdev->family == CHIP_RS200) {
1262 rdev->pll_errata |= CHIP_ERRATA_PLL_DELAY;
1263 }
1264 }
1265
1266 /* Wait for vertical sync on primary CRTC */
1267 void r100_gpu_wait_for_vsync(struct radeon_device *rdev)
1268 {
1269 uint32_t crtc_gen_cntl, tmp;
1270 int i;
1271
1272 crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL);
1273 if ((crtc_gen_cntl & RADEON_CRTC_DISP_REQ_EN_B) ||
1274 !(crtc_gen_cntl & RADEON_CRTC_EN)) {
1275 return;
1276 }
1277 /* Clear the CRTC_VBLANK_SAVE bit */
1278 WREG32(RADEON_CRTC_STATUS, RADEON_CRTC_VBLANK_SAVE_CLEAR);
1279 for (i = 0; i < rdev->usec_timeout; i++) {
1280 tmp = RREG32(RADEON_CRTC_STATUS);
1281 if (tmp & RADEON_CRTC_VBLANK_SAVE) {
1282 return;
1283 }
1284 DRM_UDELAY(1);
1285 }
1286 }
1287
1288 /* Wait for vertical sync on secondary CRTC */
1289 void r100_gpu_wait_for_vsync2(struct radeon_device *rdev)
1290 {
1291 uint32_t crtc2_gen_cntl, tmp;
1292 int i;
1293
1294 crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
1295 if ((crtc2_gen_cntl & RADEON_CRTC2_DISP_REQ_EN_B) ||
1296 !(crtc2_gen_cntl & RADEON_CRTC2_EN))
1297 return;
1298
1299 /* Clear the CRTC_VBLANK_SAVE bit */
1300 WREG32(RADEON_CRTC2_STATUS, RADEON_CRTC2_VBLANK_SAVE_CLEAR);
1301 for (i = 0; i < rdev->usec_timeout; i++) {
1302 tmp = RREG32(RADEON_CRTC2_STATUS);
1303 if (tmp & RADEON_CRTC2_VBLANK_SAVE) {
1304 return;
1305 }
1306 DRM_UDELAY(1);
1307 }
1308 }
1309
1310 int r100_rbbm_fifo_wait_for_entry(struct radeon_device *rdev, unsigned n)
1311 {
1312 unsigned i;
1313 uint32_t tmp;
1314
1315 for (i = 0; i < rdev->usec_timeout; i++) {
1316 tmp = RREG32(RADEON_RBBM_STATUS) & RADEON_RBBM_FIFOCNT_MASK;
1317 if (tmp >= n) {
1318 return 0;
1319 }
1320 DRM_UDELAY(1);
1321 }
1322 return -1;
1323 }
1324
1325 int r100_gui_wait_for_idle(struct radeon_device *rdev)
1326 {
1327 unsigned i;
1328 uint32_t tmp;
1329
1330 if (r100_rbbm_fifo_wait_for_entry(rdev, 64)) {
1331 printk(KERN_WARNING "radeon: wait for empty RBBM fifo failed !"
1332 " Bad things might happen.\n");
1333 }
1334 for (i = 0; i < rdev->usec_timeout; i++) {
1335 tmp = RREG32(RADEON_RBBM_STATUS);
1336 if (!(tmp & (1 << 31))) {
1337 return 0;
1338 }
1339 DRM_UDELAY(1);
1340 }
1341 return -1;
1342 }
1343
1344 int r100_mc_wait_for_idle(struct radeon_device *rdev)
1345 {
1346 unsigned i;
1347 uint32_t tmp;
1348
1349 for (i = 0; i < rdev->usec_timeout; i++) {
1350 /* read MC_STATUS */
1351 tmp = RREG32(0x0150);
1352 if (tmp & (1 << 2)) {
1353 return 0;
1354 }
1355 DRM_UDELAY(1);
1356 }
1357 return -1;
1358 }
1359
1360 void r100_gpu_init(struct radeon_device *rdev)
1361 {
1362 /* TODO: anythings to do here ? pipes ? */
1363 r100_hdp_reset(rdev);
1364 }
1365
1366 void r100_hdp_reset(struct radeon_device *rdev)
1367 {
1368 uint32_t tmp;
1369
1370 tmp = RREG32(RADEON_HOST_PATH_CNTL) & RADEON_HDP_APER_CNTL;
1371 tmp |= (7 << 28);
1372 WREG32(RADEON_HOST_PATH_CNTL, tmp | RADEON_HDP_SOFT_RESET | RADEON_HDP_READ_BUFFER_INVALIDATE);
1373 (void)RREG32(RADEON_HOST_PATH_CNTL);
1374 udelay(200);
1375 WREG32(RADEON_RBBM_SOFT_RESET, 0);
1376 WREG32(RADEON_HOST_PATH_CNTL, tmp);
1377 (void)RREG32(RADEON_HOST_PATH_CNTL);
1378 }
1379
1380 int r100_rb2d_reset(struct radeon_device *rdev)
1381 {
1382 uint32_t tmp;
1383 int i;
1384
1385 WREG32(RADEON_RBBM_SOFT_RESET, RADEON_SOFT_RESET_E2);
1386 (void)RREG32(RADEON_RBBM_SOFT_RESET);
1387 udelay(200);
1388 WREG32(RADEON_RBBM_SOFT_RESET, 0);
1389 /* Wait to prevent race in RBBM_STATUS */
1390 mdelay(1);
1391 for (i = 0; i < rdev->usec_timeout; i++) {
1392 tmp = RREG32(RADEON_RBBM_STATUS);
1393 if (!(tmp & (1 << 26))) {
1394 DRM_INFO("RB2D reset succeed (RBBM_STATUS=0x%08X)\n",
1395 tmp);
1396 return 0;
1397 }
1398 DRM_UDELAY(1);
1399 }
1400 tmp = RREG32(RADEON_RBBM_STATUS);
1401 DRM_ERROR("Failed to reset RB2D (RBBM_STATUS=0x%08X)!\n", tmp);
1402 return -1;
1403 }
1404
1405 int r100_gpu_reset(struct radeon_device *rdev)
1406 {
1407 uint32_t status;
1408
1409 /* reset order likely matter */
1410 status = RREG32(RADEON_RBBM_STATUS);
1411 /* reset HDP */
1412 r100_hdp_reset(rdev);
1413 /* reset rb2d */
1414 if (status & ((1 << 17) | (1 << 18) | (1 << 27))) {
1415 r100_rb2d_reset(rdev);
1416 }
1417 /* TODO: reset 3D engine */
1418 /* reset CP */
1419 status = RREG32(RADEON_RBBM_STATUS);
1420 if (status & (1 << 16)) {
1421 r100_cp_reset(rdev);
1422 }
1423 /* Check if GPU is idle */
1424 status = RREG32(RADEON_RBBM_STATUS);
1425 if (status & (1 << 31)) {
1426 DRM_ERROR("Failed to reset GPU (RBBM_STATUS=0x%08X)\n", status);
1427 return -1;
1428 }
1429 DRM_INFO("GPU reset succeed (RBBM_STATUS=0x%08X)\n", status);
1430 return 0;
1431 }
1432
1433
1434 /*
1435 * VRAM info
1436 */
1437 static void r100_vram_get_type(struct radeon_device *rdev)
1438 {
1439 uint32_t tmp;
1440
1441 rdev->mc.vram_is_ddr = false;
1442 if (rdev->flags & RADEON_IS_IGP)
1443 rdev->mc.vram_is_ddr = true;
1444 else if (RREG32(RADEON_MEM_SDRAM_MODE_REG) & RADEON_MEM_CFG_TYPE_DDR)
1445 rdev->mc.vram_is_ddr = true;
1446 if ((rdev->family == CHIP_RV100) ||
1447 (rdev->family == CHIP_RS100) ||
1448 (rdev->family == CHIP_RS200)) {
1449 tmp = RREG32(RADEON_MEM_CNTL);
1450 if (tmp & RV100_HALF_MODE) {
1451 rdev->mc.vram_width = 32;
1452 } else {
1453 rdev->mc.vram_width = 64;
1454 }
1455 if (rdev->flags & RADEON_SINGLE_CRTC) {
1456 rdev->mc.vram_width /= 4;
1457 rdev->mc.vram_is_ddr = true;
1458 }
1459 } else if (rdev->family <= CHIP_RV280) {
1460 tmp = RREG32(RADEON_MEM_CNTL);
1461 if (tmp & RADEON_MEM_NUM_CHANNELS_MASK) {
1462 rdev->mc.vram_width = 128;
1463 } else {
1464 rdev->mc.vram_width = 64;
1465 }
1466 } else {
1467 /* newer IGPs */
1468 rdev->mc.vram_width = 128;
1469 }
1470 }
1471
1472 static u32 r100_get_accessible_vram(struct radeon_device *rdev)
1473 {
1474 u32 aper_size;
1475 u8 byte;
1476
1477 aper_size = RREG32(RADEON_CONFIG_APER_SIZE);
1478
1479 /* Set HDP_APER_CNTL only on cards that are known not to be broken,
1480 * that is has the 2nd generation multifunction PCI interface
1481 */
1482 if (rdev->family == CHIP_RV280 ||
1483 rdev->family >= CHIP_RV350) {
1484 WREG32_P(RADEON_HOST_PATH_CNTL, RADEON_HDP_APER_CNTL,
1485 ~RADEON_HDP_APER_CNTL);
1486 DRM_INFO("Generation 2 PCI interface, using max accessible memory\n");
1487 return aper_size * 2;
1488 }
1489
1490 /* Older cards have all sorts of funny issues to deal with. First
1491 * check if it's a multifunction card by reading the PCI config
1492 * header type... Limit those to one aperture size
1493 */
1494 pci_read_config_byte(rdev->pdev, 0xe, &byte);
1495 if (byte & 0x80) {
1496 DRM_INFO("Generation 1 PCI interface in multifunction mode\n");
1497 DRM_INFO("Limiting VRAM to one aperture\n");
1498 return aper_size;
1499 }
1500
1501 /* Single function older card. We read HDP_APER_CNTL to see how the BIOS
1502 * have set it up. We don't write this as it's broken on some ASICs but
1503 * we expect the BIOS to have done the right thing (might be too optimistic...)
1504 */
1505 if (RREG32(RADEON_HOST_PATH_CNTL) & RADEON_HDP_APER_CNTL)
1506 return aper_size * 2;
1507 return aper_size;
1508 }
1509
1510 void r100_vram_init_sizes(struct radeon_device *rdev)
1511 {
1512 u64 config_aper_size;
1513 u32 accessible;
1514
1515 config_aper_size = RREG32(RADEON_CONFIG_APER_SIZE);
1516
1517 if (rdev->flags & RADEON_IS_IGP) {
1518 uint32_t tom;
1519 /* read NB_TOM to get the amount of ram stolen for the GPU */
1520 tom = RREG32(RADEON_NB_TOM);
1521 rdev->mc.real_vram_size = (((tom >> 16) - (tom & 0xffff) + 1) << 16);
1522 /* for IGPs we need to keep VRAM where it was put by the BIOS */
1523 rdev->mc.vram_location = (tom & 0xffff) << 16;
1524 WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
1525 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
1526 } else {
1527 rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
1528 /* Some production boards of m6 will report 0
1529 * if it's 8 MB
1530 */
1531 if (rdev->mc.real_vram_size == 0) {
1532 rdev->mc.real_vram_size = 8192 * 1024;
1533 WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
1534 }
1535 /* let driver place VRAM */
1536 rdev->mc.vram_location = 0xFFFFFFFFUL;
1537 /* Fix for RN50, M6, M7 with 8/16/32(??) MBs of VRAM -
1538 * Novell bug 204882 + along with lots of ubuntu ones */
1539 if (config_aper_size > rdev->mc.real_vram_size)
1540 rdev->mc.mc_vram_size = config_aper_size;
1541 else
1542 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
1543 }
1544
1545 /* work out accessible VRAM */
1546 accessible = r100_get_accessible_vram(rdev);
1547
1548 rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
1549 rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
1550
1551 if (accessible > rdev->mc.aper_size)
1552 accessible = rdev->mc.aper_size;
1553
1554 if (rdev->mc.mc_vram_size > rdev->mc.aper_size)
1555 rdev->mc.mc_vram_size = rdev->mc.aper_size;
1556
1557 if (rdev->mc.real_vram_size > rdev->mc.aper_size)
1558 rdev->mc.real_vram_size = rdev->mc.aper_size;
1559 }
1560
1561 void r100_vram_info(struct radeon_device *rdev)
1562 {
1563 r100_vram_get_type(rdev);
1564
1565 r100_vram_init_sizes(rdev);
1566 }
1567
1568
1569 /*
1570 * Indirect registers accessor
1571 */
1572 void r100_pll_errata_after_index(struct radeon_device *rdev)
1573 {
1574 if (!(rdev->pll_errata & CHIP_ERRATA_PLL_DUMMYREADS)) {
1575 return;
1576 }
1577 (void)RREG32(RADEON_CLOCK_CNTL_DATA);
1578 (void)RREG32(RADEON_CRTC_GEN_CNTL);
1579 }
1580
1581 static void r100_pll_errata_after_data(struct radeon_device *rdev)
1582 {
1583 /* This workarounds is necessary on RV100, RS100 and RS200 chips
1584 * or the chip could hang on a subsequent access
1585 */
1586 if (rdev->pll_errata & CHIP_ERRATA_PLL_DELAY) {
1587 udelay(5000);
1588 }
1589
1590 /* This function is required to workaround a hardware bug in some (all?)
1591 * revisions of the R300. This workaround should be called after every
1592 * CLOCK_CNTL_INDEX register access. If not, register reads afterward
1593 * may not be correct.
1594 */
1595 if (rdev->pll_errata & CHIP_ERRATA_R300_CG) {
1596 uint32_t save, tmp;
1597
1598 save = RREG32(RADEON_CLOCK_CNTL_INDEX);
1599 tmp = save & ~(0x3f | RADEON_PLL_WR_EN);
1600 WREG32(RADEON_CLOCK_CNTL_INDEX, tmp);
1601 tmp = RREG32(RADEON_CLOCK_CNTL_DATA);
1602 WREG32(RADEON_CLOCK_CNTL_INDEX, save);
1603 }
1604 }
1605
1606 uint32_t r100_pll_rreg(struct radeon_device *rdev, uint32_t reg)
1607 {
1608 uint32_t data;
1609
1610 WREG8(RADEON_CLOCK_CNTL_INDEX, reg & 0x3f);
1611 r100_pll_errata_after_index(rdev);
1612 data = RREG32(RADEON_CLOCK_CNTL_DATA);
1613 r100_pll_errata_after_data(rdev);
1614 return data;
1615 }
1616
1617 void r100_pll_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
1618 {
1619 WREG8(RADEON_CLOCK_CNTL_INDEX, ((reg & 0x3f) | RADEON_PLL_WR_EN));
1620 r100_pll_errata_after_index(rdev);
1621 WREG32(RADEON_CLOCK_CNTL_DATA, v);
1622 r100_pll_errata_after_data(rdev);
1623 }
1624
1625 uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg)
1626 {
1627 if (reg < 0x10000)
1628 return readl(((void __iomem *)rdev->rmmio) + reg);
1629 else {
1630 writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
1631 return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
1632 }
1633 }
1634
1635 void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
1636 {
1637 if (reg < 0x10000)
1638 writel(v, ((void __iomem *)rdev->rmmio) + reg);
1639 else {
1640 writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
1641 writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
1642 }
1643 }
1644
1645 int r100_init(struct radeon_device *rdev)
1646 {
1647 return 0;
1648 }
1649
1650 /*
1651 * Debugfs info
1652 */
1653 #if defined(CONFIG_DEBUG_FS)
1654 static int r100_debugfs_rbbm_info(struct seq_file *m, void *data)
1655 {
1656 struct drm_info_node *node = (struct drm_info_node *) m->private;
1657 struct drm_device *dev = node->minor->dev;
1658 struct radeon_device *rdev = dev->dev_private;
1659 uint32_t reg, value;
1660 unsigned i;
1661
1662 seq_printf(m, "RBBM_STATUS 0x%08x\n", RREG32(RADEON_RBBM_STATUS));
1663 seq_printf(m, "RBBM_CMDFIFO_STAT 0x%08x\n", RREG32(0xE7C));
1664 seq_printf(m, "CP_STAT 0x%08x\n", RREG32(RADEON_CP_STAT));
1665 for (i = 0; i < 64; i++) {
1666 WREG32(RADEON_RBBM_CMDFIFO_ADDR, i | 0x100);
1667 reg = (RREG32(RADEON_RBBM_CMDFIFO_DATA) - 1) >> 2;
1668 WREG32(RADEON_RBBM_CMDFIFO_ADDR, i);
1669 value = RREG32(RADEON_RBBM_CMDFIFO_DATA);
1670 seq_printf(m, "[0x%03X] 0x%04X=0x%08X\n", i, reg, value);
1671 }
1672 return 0;
1673 }
1674
1675 static int r100_debugfs_cp_ring_info(struct seq_file *m, void *data)
1676 {
1677 struct drm_info_node *node = (struct drm_info_node *) m->private;
1678 struct drm_device *dev = node->minor->dev;
1679 struct radeon_device *rdev = dev->dev_private;
1680 uint32_t rdp, wdp;
1681 unsigned count, i, j;
1682
1683 radeon_ring_free_size(rdev);
1684 rdp = RREG32(RADEON_CP_RB_RPTR);
1685 wdp = RREG32(RADEON_CP_RB_WPTR);
1686 count = (rdp + rdev->cp.ring_size - wdp) & rdev->cp.ptr_mask;
1687 seq_printf(m, "CP_STAT 0x%08x\n", RREG32(RADEON_CP_STAT));
1688 seq_printf(m, "CP_RB_WPTR 0x%08x\n", wdp);
1689 seq_printf(m, "CP_RB_RPTR 0x%08x\n", rdp);
1690 seq_printf(m, "%u free dwords in ring\n", rdev->cp.ring_free_dw);
1691 seq_printf(m, "%u dwords in ring\n", count);
1692 for (j = 0; j <= count; j++) {
1693 i = (rdp + j) & rdev->cp.ptr_mask;
1694 seq_printf(m, "r[%04d]=0x%08x\n", i, rdev->cp.ring[i]);
1695 }
1696 return 0;
1697 }
1698
1699
1700 static int r100_debugfs_cp_csq_fifo(struct seq_file *m, void *data)
1701 {
1702 struct drm_info_node *node = (struct drm_info_node *) m->private;
1703 struct drm_device *dev = node->minor->dev;
1704 struct radeon_device *rdev = dev->dev_private;
1705 uint32_t csq_stat, csq2_stat, tmp;
1706 unsigned r_rptr, r_wptr, ib1_rptr, ib1_wptr, ib2_rptr, ib2_wptr;
1707 unsigned i;
1708
1709 seq_printf(m, "CP_STAT 0x%08x\n", RREG32(RADEON_CP_STAT));
1710 seq_printf(m, "CP_CSQ_MODE 0x%08x\n", RREG32(RADEON_CP_CSQ_MODE));
1711 csq_stat = RREG32(RADEON_CP_CSQ_STAT);
1712 csq2_stat = RREG32(RADEON_CP_CSQ2_STAT);
1713 r_rptr = (csq_stat >> 0) & 0x3ff;
1714 r_wptr = (csq_stat >> 10) & 0x3ff;
1715 ib1_rptr = (csq_stat >> 20) & 0x3ff;
1716 ib1_wptr = (csq2_stat >> 0) & 0x3ff;
1717 ib2_rptr = (csq2_stat >> 10) & 0x3ff;
1718 ib2_wptr = (csq2_stat >> 20) & 0x3ff;
1719 seq_printf(m, "CP_CSQ_STAT 0x%08x\n", csq_stat);
1720 seq_printf(m, "CP_CSQ2_STAT 0x%08x\n", csq2_stat);
1721 seq_printf(m, "Ring rptr %u\n", r_rptr);
1722 seq_printf(m, "Ring wptr %u\n", r_wptr);
1723 seq_printf(m, "Indirect1 rptr %u\n", ib1_rptr);
1724 seq_printf(m, "Indirect1 wptr %u\n", ib1_wptr);
1725 seq_printf(m, "Indirect2 rptr %u\n", ib2_rptr);
1726 seq_printf(m, "Indirect2 wptr %u\n", ib2_wptr);
1727 /* FIXME: 0, 128, 640 depends on fifo setup see cp_init_kms
1728 * 128 = indirect1_start * 8 & 640 = indirect2_start * 8 */
1729 seq_printf(m, "Ring fifo:\n");
1730 for (i = 0; i < 256; i++) {
1731 WREG32(RADEON_CP_CSQ_ADDR, i << 2);
1732 tmp = RREG32(RADEON_CP_CSQ_DATA);
1733 seq_printf(m, "rfifo[%04d]=0x%08X\n", i, tmp);
1734 }
1735 seq_printf(m, "Indirect1 fifo:\n");
1736 for (i = 256; i <= 512; i++) {
1737 WREG32(RADEON_CP_CSQ_ADDR, i << 2);
1738 tmp = RREG32(RADEON_CP_CSQ_DATA);
1739 seq_printf(m, "ib1fifo[%04d]=0x%08X\n", i, tmp);
1740 }
1741 seq_printf(m, "Indirect2 fifo:\n");
1742 for (i = 640; i < ib1_wptr; i++) {
1743 WREG32(RADEON_CP_CSQ_ADDR, i << 2);
1744 tmp = RREG32(RADEON_CP_CSQ_DATA);
1745 seq_printf(m, "ib2fifo[%04d]=0x%08X\n", i, tmp);
1746 }
1747 return 0;
1748 }
1749
1750 static int r100_debugfs_mc_info(struct seq_file *m, void *data)
1751 {
1752 struct drm_info_node *node = (struct drm_info_node *) m->private;
1753 struct drm_device *dev = node->minor->dev;
1754 struct radeon_device *rdev = dev->dev_private;
1755 uint32_t tmp;
1756
1757 tmp = RREG32(RADEON_CONFIG_MEMSIZE);
1758 seq_printf(m, "CONFIG_MEMSIZE 0x%08x\n", tmp);
1759 tmp = RREG32(RADEON_MC_FB_LOCATION);
1760 seq_printf(m, "MC_FB_LOCATION 0x%08x\n", tmp);
1761 tmp = RREG32(RADEON_BUS_CNTL);
1762 seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
1763 tmp = RREG32(RADEON_MC_AGP_LOCATION);
1764 seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
1765 tmp = RREG32(RADEON_AGP_BASE);
1766 seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
1767 tmp = RREG32(RADEON_HOST_PATH_CNTL);
1768 seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
1769 tmp = RREG32(0x01D0);
1770 seq_printf(m, "AIC_CTRL 0x%08x\n", tmp);
1771 tmp = RREG32(RADEON_AIC_LO_ADDR);
1772 seq_printf(m, "AIC_LO_ADDR 0x%08x\n", tmp);
1773 tmp = RREG32(RADEON_AIC_HI_ADDR);
1774 seq_printf(m, "AIC_HI_ADDR 0x%08x\n", tmp);
1775 tmp = RREG32(0x01E4);
1776 seq_printf(m, "AIC_TLB_ADDR 0x%08x\n", tmp);
1777 return 0;
1778 }
1779
1780 static struct drm_info_list r100_debugfs_rbbm_list[] = {
1781 {"r100_rbbm_info", r100_debugfs_rbbm_info, 0, NULL},
1782 };
1783
1784 static struct drm_info_list r100_debugfs_cp_list[] = {
1785 {"r100_cp_ring_info", r100_debugfs_cp_ring_info, 0, NULL},
1786 {"r100_cp_csq_fifo", r100_debugfs_cp_csq_fifo, 0, NULL},
1787 };
1788
1789 static struct drm_info_list r100_debugfs_mc_info_list[] = {
1790 {"r100_mc_info", r100_debugfs_mc_info, 0, NULL},
1791 };
1792 #endif
1793
1794 int r100_debugfs_rbbm_init(struct radeon_device *rdev)
1795 {
1796 #if defined(CONFIG_DEBUG_FS)
1797 return radeon_debugfs_add_files(rdev, r100_debugfs_rbbm_list, 1);
1798 #else
1799 return 0;
1800 #endif
1801 }
1802
1803 int r100_debugfs_cp_init(struct radeon_device *rdev)
1804 {
1805 #if defined(CONFIG_DEBUG_FS)
1806 return radeon_debugfs_add_files(rdev, r100_debugfs_cp_list, 2);
1807 #else
1808 return 0;
1809 #endif
1810 }
1811
1812 int r100_debugfs_mc_info_init(struct radeon_device *rdev)
1813 {
1814 #if defined(CONFIG_DEBUG_FS)
1815 return radeon_debugfs_add_files(rdev, r100_debugfs_mc_info_list, 1);
1816 #else
1817 return 0;
1818 #endif
1819 }
1820
1821 int r100_set_surface_reg(struct radeon_device *rdev, int reg,
1822 uint32_t tiling_flags, uint32_t pitch,
1823 uint32_t offset, uint32_t obj_size)
1824 {
1825 int surf_index = reg * 16;
1826 int flags = 0;
1827
1828 /* r100/r200 divide by 16 */
1829 if (rdev->family < CHIP_R300)
1830 flags = pitch / 16;
1831 else
1832 flags = pitch / 8;
1833
1834 if (rdev->family <= CHIP_RS200) {
1835 if ((tiling_flags & (RADEON_TILING_MACRO|RADEON_TILING_MICRO))
1836 == (RADEON_TILING_MACRO|RADEON_TILING_MICRO))
1837 flags |= RADEON_SURF_TILE_COLOR_BOTH;
1838 if (tiling_flags & RADEON_TILING_MACRO)
1839 flags |= RADEON_SURF_TILE_COLOR_MACRO;
1840 } else if (rdev->family <= CHIP_RV280) {
1841 if (tiling_flags & (RADEON_TILING_MACRO))
1842 flags |= R200_SURF_TILE_COLOR_MACRO;
1843 if (tiling_flags & RADEON_TILING_MICRO)
1844 flags |= R200_SURF_TILE_COLOR_MICRO;
1845 } else {
1846 if (tiling_flags & RADEON_TILING_MACRO)
1847 flags |= R300_SURF_TILE_MACRO;
1848 if (tiling_flags & RADEON_TILING_MICRO)
1849 flags |= R300_SURF_TILE_MICRO;
1850 }
1851
1852 DRM_DEBUG("writing surface %d %d %x %x\n", reg, flags, offset, offset+obj_size-1);
1853 WREG32(RADEON_SURFACE0_INFO + surf_index, flags);
1854 WREG32(RADEON_SURFACE0_LOWER_BOUND + surf_index, offset);
1855 WREG32(RADEON_SURFACE0_UPPER_BOUND + surf_index, offset + obj_size - 1);
1856 return 0;
1857 }
1858
1859 void r100_clear_surface_reg(struct radeon_device *rdev, int reg)
1860 {
1861 int surf_index = reg * 16;
1862 WREG32(RADEON_SURFACE0_INFO + surf_index, 0);
1863 }
1864
1865 void r100_bandwidth_update(struct radeon_device *rdev)
1866 {
1867 fixed20_12 trcd_ff, trp_ff, tras_ff, trbs_ff, tcas_ff;
1868 fixed20_12 sclk_ff, mclk_ff, sclk_eff_ff, sclk_delay_ff;
1869 fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff, crit_point_ff;
1870 uint32_t temp, data, mem_trcd, mem_trp, mem_tras;
1871 fixed20_12 memtcas_ff[8] = {
1872 fixed_init(1),
1873 fixed_init(2),
1874 fixed_init(3),
1875 fixed_init(0),
1876 fixed_init_half(1),
1877 fixed_init_half(2),
1878 fixed_init(0),
1879 };
1880 fixed20_12 memtcas_rs480_ff[8] = {
1881 fixed_init(0),
1882 fixed_init(1),
1883 fixed_init(2),
1884 fixed_init(3),
1885 fixed_init(0),
1886 fixed_init_half(1),
1887 fixed_init_half(2),
1888 fixed_init_half(3),
1889 };
1890 fixed20_12 memtcas2_ff[8] = {
1891 fixed_init(0),
1892 fixed_init(1),
1893 fixed_init(2),
1894 fixed_init(3),
1895 fixed_init(4),
1896 fixed_init(5),
1897 fixed_init(6),
1898 fixed_init(7),
1899 };
1900 fixed20_12 memtrbs[8] = {
1901 fixed_init(1),
1902 fixed_init_half(1),
1903 fixed_init(2),
1904 fixed_init_half(2),
1905 fixed_init(3),
1906 fixed_init_half(3),
1907 fixed_init(4),
1908 fixed_init_half(4)
1909 };
1910 fixed20_12 memtrbs_r4xx[8] = {
1911 fixed_init(4),
1912 fixed_init(5),
1913 fixed_init(6),
1914 fixed_init(7),
1915 fixed_init(8),
1916 fixed_init(9),
1917 fixed_init(10),
1918 fixed_init(11)
1919 };
1920 fixed20_12 min_mem_eff;
1921 fixed20_12 mc_latency_sclk, mc_latency_mclk, k1;
1922 fixed20_12 cur_latency_mclk, cur_latency_sclk;
1923 fixed20_12 disp_latency, disp_latency_overhead, disp_drain_rate,
1924 disp_drain_rate2, read_return_rate;
1925 fixed20_12 time_disp1_drop_priority;
1926 int c;
1927 int cur_size = 16; /* in octawords */
1928 int critical_point = 0, critical_point2;
1929 /* uint32_t read_return_rate, time_disp1_drop_priority; */
1930 int stop_req, max_stop_req;
1931 struct drm_display_mode *mode1 = NULL;
1932 struct drm_display_mode *mode2 = NULL;
1933 uint32_t pixel_bytes1 = 0;
1934 uint32_t pixel_bytes2 = 0;
1935
1936 if (rdev->mode_info.crtcs[0]->base.enabled) {
1937 mode1 = &rdev->mode_info.crtcs[0]->base.mode;
1938 pixel_bytes1 = rdev->mode_info.crtcs[0]->base.fb->bits_per_pixel / 8;
1939 }
1940 if (rdev->mode_info.crtcs[1]->base.enabled) {
1941 mode2 = &rdev->mode_info.crtcs[1]->base.mode;
1942 pixel_bytes2 = rdev->mode_info.crtcs[1]->base.fb->bits_per_pixel / 8;
1943 }
1944
1945 min_mem_eff.full = rfixed_const_8(0);
1946 /* get modes */
1947 if ((rdev->disp_priority == 2) && ASIC_IS_R300(rdev)) {
1948 uint32_t mc_init_misc_lat_timer = RREG32(R300_MC_INIT_MISC_LAT_TIMER);
1949 mc_init_misc_lat_timer &= ~(R300_MC_DISP1R_INIT_LAT_MASK << R300_MC_DISP1R_INIT_LAT_SHIFT);
1950 mc_init_misc_lat_timer &= ~(R300_MC_DISP0R_INIT_LAT_MASK << R300_MC_DISP0R_INIT_LAT_SHIFT);
1951 /* check crtc enables */
1952 if (mode2)
1953 mc_init_misc_lat_timer |= (1 << R300_MC_DISP1R_INIT_LAT_SHIFT);
1954 if (mode1)
1955 mc_init_misc_lat_timer |= (1 << R300_MC_DISP0R_INIT_LAT_SHIFT);
1956 WREG32(R300_MC_INIT_MISC_LAT_TIMER, mc_init_misc_lat_timer);
1957 }
1958
1959 /*
1960 * determine is there is enough bw for current mode
1961 */
1962 mclk_ff.full = rfixed_const(rdev->clock.default_mclk);
1963 temp_ff.full = rfixed_const(100);
1964 mclk_ff.full = rfixed_div(mclk_ff, temp_ff);
1965 sclk_ff.full = rfixed_const(rdev->clock.default_sclk);
1966 sclk_ff.full = rfixed_div(sclk_ff, temp_ff);
1967
1968 temp = (rdev->mc.vram_width / 8) * (rdev->mc.vram_is_ddr ? 2 : 1);
1969 temp_ff.full = rfixed_const(temp);
1970 mem_bw.full = rfixed_mul(mclk_ff, temp_ff);
1971
1972 pix_clk.full = 0;
1973 pix_clk2.full = 0;
1974 peak_disp_bw.full = 0;
1975 if (mode1) {
1976 temp_ff.full = rfixed_const(1000);
1977 pix_clk.full = rfixed_const(mode1->clock); /* convert to fixed point */
1978 pix_clk.full = rfixed_div(pix_clk, temp_ff);
1979 temp_ff.full = rfixed_const(pixel_bytes1);
1980 peak_disp_bw.full += rfixed_mul(pix_clk, temp_ff);
1981 }
1982 if (mode2) {
1983 temp_ff.full = rfixed_const(1000);
1984 pix_clk2.full = rfixed_const(mode2->clock); /* convert to fixed point */
1985 pix_clk2.full = rfixed_div(pix_clk2, temp_ff);
1986 temp_ff.full = rfixed_const(pixel_bytes2);
1987 peak_disp_bw.full += rfixed_mul(pix_clk2, temp_ff);
1988 }
1989
1990 mem_bw.full = rfixed_mul(mem_bw, min_mem_eff);
1991 if (peak_disp_bw.full >= mem_bw.full) {
1992 DRM_ERROR("You may not have enough display bandwidth for current mode\n"
1993 "If you have flickering problem, try to lower resolution, refresh rate, or color depth\n");
1994 }
1995
1996 /* Get values from the EXT_MEM_CNTL register...converting its contents. */
1997 temp = RREG32(RADEON_MEM_TIMING_CNTL);
1998 if ((rdev->family == CHIP_RV100) || (rdev->flags & RADEON_IS_IGP)) { /* RV100, M6, IGPs */
1999 mem_trcd = ((temp >> 2) & 0x3) + 1;
2000 mem_trp = ((temp & 0x3)) + 1;
2001 mem_tras = ((temp & 0x70) >> 4) + 1;
2002 } else if (rdev->family == CHIP_R300 ||
2003 rdev->family == CHIP_R350) { /* r300, r350 */
2004 mem_trcd = (temp & 0x7) + 1;
2005 mem_trp = ((temp >> 8) & 0x7) + 1;
2006 mem_tras = ((temp >> 11) & 0xf) + 4;
2007 } else if (rdev->family == CHIP_RV350 ||
2008 rdev->family <= CHIP_RV380) {
2009 /* rv3x0 */
2010 mem_trcd = (temp & 0x7) + 3;
2011 mem_trp = ((temp >> 8) & 0x7) + 3;
2012 mem_tras = ((temp >> 11) & 0xf) + 6;
2013 } else if (rdev->family == CHIP_R420 ||
2014 rdev->family == CHIP_R423 ||
2015 rdev->family == CHIP_RV410) {
2016 /* r4xx */
2017 mem_trcd = (temp & 0xf) + 3;
2018 if (mem_trcd > 15)
2019 mem_trcd = 15;
2020 mem_trp = ((temp >> 8) & 0xf) + 3;
2021 if (mem_trp > 15)
2022 mem_trp = 15;
2023 mem_tras = ((temp >> 12) & 0x1f) + 6;
2024 if (mem_tras > 31)
2025 mem_tras = 31;
2026 } else { /* RV200, R200 */
2027 mem_trcd = (temp & 0x7) + 1;
2028 mem_trp = ((temp >> 8) & 0x7) + 1;
2029 mem_tras = ((temp >> 12) & 0xf) + 4;
2030 }
2031 /* convert to FF */
2032 trcd_ff.full = rfixed_const(mem_trcd);
2033 trp_ff.full = rfixed_const(mem_trp);
2034 tras_ff.full = rfixed_const(mem_tras);
2035
2036 /* Get values from the MEM_SDRAM_MODE_REG register...converting its */
2037 temp = RREG32(RADEON_MEM_SDRAM_MODE_REG);
2038 data = (temp & (7 << 20)) >> 20;
2039 if ((rdev->family == CHIP_RV100) || rdev->flags & RADEON_IS_IGP) {
2040 if (rdev->family == CHIP_RS480) /* don't think rs400 */
2041 tcas_ff = memtcas_rs480_ff[data];
2042 else
2043 tcas_ff = memtcas_ff[data];
2044 } else
2045 tcas_ff = memtcas2_ff[data];
2046
2047 if (rdev->family == CHIP_RS400 ||
2048 rdev->family == CHIP_RS480) {
2049 /* extra cas latency stored in bits 23-25 0-4 clocks */
2050 data = (temp >> 23) & 0x7;
2051 if (data < 5)
2052 tcas_ff.full += rfixed_const(data);
2053 }
2054
2055 if (ASIC_IS_R300(rdev) && !(rdev->flags & RADEON_IS_IGP)) {
2056 /* on the R300, Tcas is included in Trbs.
2057 */
2058 temp = RREG32(RADEON_MEM_CNTL);
2059 data = (R300_MEM_NUM_CHANNELS_MASK & temp);
2060 if (data == 1) {
2061 if (R300_MEM_USE_CD_CH_ONLY & temp) {
2062 temp = RREG32(R300_MC_IND_INDEX);
2063 temp &= ~R300_MC_IND_ADDR_MASK;
2064 temp |= R300_MC_READ_CNTL_CD_mcind;
2065 WREG32(R300_MC_IND_INDEX, temp);
2066 temp = RREG32(R300_MC_IND_DATA);
2067 data = (R300_MEM_RBS_POSITION_C_MASK & temp);
2068 } else {
2069 temp = RREG32(R300_MC_READ_CNTL_AB);
2070 data = (R300_MEM_RBS_POSITION_A_MASK & temp);
2071 }
2072 } else {
2073 temp = RREG32(R300_MC_READ_CNTL_AB);
2074 data = (R300_MEM_RBS_POSITION_A_MASK & temp);
2075 }
2076 if (rdev->family == CHIP_RV410 ||
2077 rdev->family == CHIP_R420 ||
2078 rdev->family == CHIP_R423)
2079 trbs_ff = memtrbs_r4xx[data];
2080 else
2081 trbs_ff = memtrbs[data];
2082 tcas_ff.full += trbs_ff.full;
2083 }
2084
2085 sclk_eff_ff.full = sclk_ff.full;
2086
2087 if (rdev->flags & RADEON_IS_AGP) {
2088 fixed20_12 agpmode_ff;
2089 agpmode_ff.full = rfixed_const(radeon_agpmode);
2090 temp_ff.full = rfixed_const_666(16);
2091 sclk_eff_ff.full -= rfixed_mul(agpmode_ff, temp_ff);
2092 }
2093 /* TODO PCIE lanes may affect this - agpmode == 16?? */
2094
2095 if (ASIC_IS_R300(rdev)) {
2096 sclk_delay_ff.full = rfixed_const(250);
2097 } else {
2098 if ((rdev->family == CHIP_RV100) ||
2099 rdev->flags & RADEON_IS_IGP) {
2100 if (rdev->mc.vram_is_ddr)
2101 sclk_delay_ff.full = rfixed_const(41);
2102 else
2103 sclk_delay_ff.full = rfixed_const(33);
2104 } else {
2105 if (rdev->mc.vram_width == 128)
2106 sclk_delay_ff.full = rfixed_const(57);
2107 else
2108 sclk_delay_ff.full = rfixed_const(41);
2109 }
2110 }
2111
2112 mc_latency_sclk.full = rfixed_div(sclk_delay_ff, sclk_eff_ff);
2113
2114 if (rdev->mc.vram_is_ddr) {
2115 if (rdev->mc.vram_width == 32) {
2116 k1.full = rfixed_const(40);
2117 c = 3;
2118 } else {
2119 k1.full = rfixed_const(20);
2120 c = 1;
2121 }
2122 } else {
2123 k1.full = rfixed_const(40);
2124 c = 3;
2125 }
2126
2127 temp_ff.full = rfixed_const(2);
2128 mc_latency_mclk.full = rfixed_mul(trcd_ff, temp_ff);
2129 temp_ff.full = rfixed_const(c);
2130 mc_latency_mclk.full += rfixed_mul(tcas_ff, temp_ff);
2131 temp_ff.full = rfixed_const(4);
2132 mc_latency_mclk.full += rfixed_mul(tras_ff, temp_ff);
2133 mc_latency_mclk.full += rfixed_mul(trp_ff, temp_ff);
2134 mc_latency_mclk.full += k1.full;
2135
2136 mc_latency_mclk.full = rfixed_div(mc_latency_mclk, mclk_ff);
2137 mc_latency_mclk.full += rfixed_div(temp_ff, sclk_eff_ff);
2138
2139 /*
2140 HW cursor time assuming worst case of full size colour cursor.
2141 */
2142 temp_ff.full = rfixed_const((2 * (cur_size - (rdev->mc.vram_is_ddr + 1))));
2143 temp_ff.full += trcd_ff.full;
2144 if (temp_ff.full < tras_ff.full)
2145 temp_ff.full = tras_ff.full;
2146 cur_latency_mclk.full = rfixed_div(temp_ff, mclk_ff);
2147
2148 temp_ff.full = rfixed_const(cur_size);
2149 cur_latency_sclk.full = rfixed_div(temp_ff, sclk_eff_ff);
2150 /*
2151 Find the total latency for the display data.
2152 */
2153 disp_latency_overhead.full = rfixed_const(80);
2154 disp_latency_overhead.full = rfixed_div(disp_latency_overhead, sclk_ff);
2155 mc_latency_mclk.full += disp_latency_overhead.full + cur_latency_mclk.full;
2156 mc_latency_sclk.full += disp_latency_overhead.full + cur_latency_sclk.full;
2157
2158 if (mc_latency_mclk.full > mc_latency_sclk.full)
2159 disp_latency.full = mc_latency_mclk.full;
2160 else
2161 disp_latency.full = mc_latency_sclk.full;
2162
2163 /* setup Max GRPH_STOP_REQ default value */
2164 if (ASIC_IS_RV100(rdev))
2165 max_stop_req = 0x5c;
2166 else
2167 max_stop_req = 0x7c;
2168
2169 if (mode1) {
2170 /* CRTC1
2171 Set GRPH_BUFFER_CNTL register using h/w defined optimal values.
2172 GRPH_STOP_REQ <= MIN[ 0x7C, (CRTC_H_DISP + 1) * (bit depth) / 0x10 ]
2173 */
2174 stop_req = mode1->hdisplay * pixel_bytes1 / 16;
2175
2176 if (stop_req > max_stop_req)
2177 stop_req = max_stop_req;
2178
2179 /*
2180 Find the drain rate of the display buffer.
2181 */
2182 temp_ff.full = rfixed_const((16/pixel_bytes1));
2183 disp_drain_rate.full = rfixed_div(pix_clk, temp_ff);
2184
2185 /*
2186 Find the critical point of the display buffer.
2187 */
2188 crit_point_ff.full = rfixed_mul(disp_drain_rate, disp_latency);
2189 crit_point_ff.full += rfixed_const_half(0);
2190
2191 critical_point = rfixed_trunc(crit_point_ff);
2192
2193 if (rdev->disp_priority == 2) {
2194 critical_point = 0;
2195 }
2196
2197 /*
2198 The critical point should never be above max_stop_req-4. Setting
2199 GRPH_CRITICAL_CNTL = 0 will thus force high priority all the time.
2200 */
2201 if (max_stop_req - critical_point < 4)
2202 critical_point = 0;
2203
2204 if (critical_point == 0 && mode2 && rdev->family == CHIP_R300) {
2205 /* some R300 cards have problem with this set to 0, when CRTC2 is enabled.*/
2206 critical_point = 0x10;
2207 }
2208
2209 temp = RREG32(RADEON_GRPH_BUFFER_CNTL);
2210 temp &= ~(RADEON_GRPH_STOP_REQ_MASK);
2211 temp |= (stop_req << RADEON_GRPH_STOP_REQ_SHIFT);
2212 temp &= ~(RADEON_GRPH_START_REQ_MASK);
2213 if ((rdev->family == CHIP_R350) &&
2214 (stop_req > 0x15)) {
2215 stop_req -= 0x10;
2216 }
2217 temp |= (stop_req << RADEON_GRPH_START_REQ_SHIFT);
2218 temp |= RADEON_GRPH_BUFFER_SIZE;
2219 temp &= ~(RADEON_GRPH_CRITICAL_CNTL |
2220 RADEON_GRPH_CRITICAL_AT_SOF |
2221 RADEON_GRPH_STOP_CNTL);
2222 /*
2223 Write the result into the register.
2224 */
2225 WREG32(RADEON_GRPH_BUFFER_CNTL, ((temp & ~RADEON_GRPH_CRITICAL_POINT_MASK) |
2226 (critical_point << RADEON_GRPH_CRITICAL_POINT_SHIFT)));
2227
2228 #if 0
2229 if ((rdev->family == CHIP_RS400) ||
2230 (rdev->family == CHIP_RS480)) {
2231 /* attempt to program RS400 disp regs correctly ??? */
2232 temp = RREG32(RS400_DISP1_REG_CNTL);
2233 temp &= ~(RS400_DISP1_START_REQ_LEVEL_MASK |
2234 RS400_DISP1_STOP_REQ_LEVEL_MASK);
2235 WREG32(RS400_DISP1_REQ_CNTL1, (temp |
2236 (critical_point << RS400_DISP1_START_REQ_LEVEL_SHIFT) |
2237 (critical_point << RS400_DISP1_STOP_REQ_LEVEL_SHIFT)));
2238 temp = RREG32(RS400_DMIF_MEM_CNTL1);
2239 temp &= ~(RS400_DISP1_CRITICAL_POINT_START_MASK |
2240 RS400_DISP1_CRITICAL_POINT_STOP_MASK);
2241 WREG32(RS400_DMIF_MEM_CNTL1, (temp |
2242 (critical_point << RS400_DISP1_CRITICAL_POINT_START_SHIFT) |
2243 (critical_point << RS400_DISP1_CRITICAL_POINT_STOP_SHIFT)));
2244 }
2245 #endif
2246
2247 DRM_DEBUG("GRPH_BUFFER_CNTL from to %x\n",
2248 /* (unsigned int)info->SavedReg->grph_buffer_cntl, */
2249 (unsigned int)RREG32(RADEON_GRPH_BUFFER_CNTL));
2250 }
2251
2252 if (mode2) {
2253 u32 grph2_cntl;
2254 stop_req = mode2->hdisplay * pixel_bytes2 / 16;
2255
2256 if (stop_req > max_stop_req)
2257 stop_req = max_stop_req;
2258
2259 /*
2260 Find the drain rate of the display buffer.
2261 */
2262 temp_ff.full = rfixed_const((16/pixel_bytes2));
2263 disp_drain_rate2.full = rfixed_div(pix_clk2, temp_ff);
2264
2265 grph2_cntl = RREG32(RADEON_GRPH2_BUFFER_CNTL);
2266 grph2_cntl &= ~(RADEON_GRPH_STOP_REQ_MASK);
2267 grph2_cntl |= (stop_req << RADEON_GRPH_STOP_REQ_SHIFT);
2268 grph2_cntl &= ~(RADEON_GRPH_START_REQ_MASK);
2269 if ((rdev->family == CHIP_R350) &&
2270 (stop_req > 0x15)) {
2271 stop_req -= 0x10;
2272 }
2273 grph2_cntl |= (stop_req << RADEON_GRPH_START_REQ_SHIFT);
2274 grph2_cntl |= RADEON_GRPH_BUFFER_SIZE;
2275 grph2_cntl &= ~(RADEON_GRPH_CRITICAL_CNTL |
2276 RADEON_GRPH_CRITICAL_AT_SOF |
2277 RADEON_GRPH_STOP_CNTL);
2278
2279 if ((rdev->family == CHIP_RS100) ||
2280 (rdev->family == CHIP_RS200))
2281 critical_point2 = 0;
2282 else {
2283 temp = (rdev->mc.vram_width * rdev->mc.vram_is_ddr + 1)/128;
2284 temp_ff.full = rfixed_const(temp);
2285 temp_ff.full = rfixed_mul(mclk_ff, temp_ff);
2286 if (sclk_ff.full < temp_ff.full)
2287 temp_ff.full = sclk_ff.full;
2288
2289 read_return_rate.full = temp_ff.full;
2290
2291 if (mode1) {
2292 temp_ff.full = read_return_rate.full - disp_drain_rate.full;
2293 time_disp1_drop_priority.full = rfixed_div(crit_point_ff, temp_ff);
2294 } else {
2295 time_disp1_drop_priority.full = 0;
2296 }
2297 crit_point_ff.full = disp_latency.full + time_disp1_drop_priority.full + disp_latency.full;
2298 crit_point_ff.full = rfixed_mul(crit_point_ff, disp_drain_rate2);
2299 crit_point_ff.full += rfixed_const_half(0);
2300
2301 critical_point2 = rfixed_trunc(crit_point_ff);
2302
2303 if (rdev->disp_priority == 2) {
2304 critical_point2 = 0;
2305 }
2306
2307 if (max_stop_req - critical_point2 < 4)
2308 critical_point2 = 0;
2309
2310 }
2311
2312 if (critical_point2 == 0 && rdev->family == CHIP_R300) {
2313 /* some R300 cards have problem with this set to 0 */
2314 critical_point2 = 0x10;
2315 }
2316
2317 WREG32(RADEON_GRPH2_BUFFER_CNTL, ((grph2_cntl & ~RADEON_GRPH_CRITICAL_POINT_MASK) |
2318 (critical_point2 << RADEON_GRPH_CRITICAL_POINT_SHIFT)));
2319
2320 if ((rdev->family == CHIP_RS400) ||
2321 (rdev->family == CHIP_RS480)) {
2322 #if 0
2323 /* attempt to program RS400 disp2 regs correctly ??? */
2324 temp = RREG32(RS400_DISP2_REQ_CNTL1);
2325 temp &= ~(RS400_DISP2_START_REQ_LEVEL_MASK |
2326 RS400_DISP2_STOP_REQ_LEVEL_MASK);
2327 WREG32(RS400_DISP2_REQ_CNTL1, (temp |
2328 (critical_point2 << RS400_DISP1_START_REQ_LEVEL_SHIFT) |
2329 (critical_point2 << RS400_DISP1_STOP_REQ_LEVEL_SHIFT)));
2330 temp = RREG32(RS400_DISP2_REQ_CNTL2);
2331 temp &= ~(RS400_DISP2_CRITICAL_POINT_START_MASK |
2332 RS400_DISP2_CRITICAL_POINT_STOP_MASK);
2333 WREG32(RS400_DISP2_REQ_CNTL2, (temp |
2334 (critical_point2 << RS400_DISP2_CRITICAL_POINT_START_SHIFT) |
2335 (critical_point2 << RS400_DISP2_CRITICAL_POINT_STOP_SHIFT)));
2336 #endif
2337 WREG32(RS400_DISP2_REQ_CNTL1, 0x105DC1CC);
2338 WREG32(RS400_DISP2_REQ_CNTL2, 0x2749D000);
2339 WREG32(RS400_DMIF_MEM_CNTL1, 0x29CA71DC);
2340 WREG32(RS400_DISP1_REQ_CNTL1, 0x28FBC3AC);
2341 }
2342
2343 DRM_DEBUG("GRPH2_BUFFER_CNTL from to %x\n",
2344 (unsigned int)RREG32(RADEON_GRPH2_BUFFER_CNTL));
2345 }
2346 }
Linux kernel - Deliverables
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