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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 <linux/slab.h>
30#include <drm/drmP.h>
31#include "radeon.h"
32#include "radeon_asic.h"
33#include "rs400d.h"
34
35/* This files gather functions specifics to : rs400,rs480 */
36static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
37
38void rs400_gart_adjust_size(struct radeon_device *rdev)
39{
40 /* Check gart size */
41 switch (rdev->mc.gtt_size/(1024*1024)) {
42 case 32:
43 case 64:
44 case 128:
45 case 256:
46 case 512:
47 case 1024:
48 case 2048:
49 break;
50 default:
51 DRM_ERROR("Unable to use IGP GART size %uM\n",
52 (unsigned)(rdev->mc.gtt_size >> 20));
53 DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
54 DRM_ERROR("Forcing to 32M GART size\n");
55 rdev->mc.gtt_size = 32 * 1024 * 1024;
56 return;
57 }
58}
59
60void rs400_gart_tlb_flush(struct radeon_device *rdev)
61{
62 uint32_t tmp;
63 unsigned int timeout = rdev->usec_timeout;
64
65 WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
66 do {
67 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
68 if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
69 break;
70 DRM_UDELAY(1);
71 timeout--;
72 } while (timeout > 0);
73 WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
74}
75
76int rs400_gart_init(struct radeon_device *rdev)
77{
78 int r;
79
80 if (rdev->gart.table.ram.ptr) {
81 WARN(1, "RS400 GART already initialized\n");
82 return 0;
83 }
84 /* Check gart size */
85 switch(rdev->mc.gtt_size / (1024 * 1024)) {
86 case 32:
87 case 64:
88 case 128:
89 case 256:
90 case 512:
91 case 1024:
92 case 2048:
93 break;
94 default:
95 return -EINVAL;
96 }
97 /* Initialize common gart structure */
98 r = radeon_gart_init(rdev);
99 if (r)
100 return r;
101 if (rs400_debugfs_pcie_gart_info_init(rdev))
102 DRM_ERROR("Failed to register debugfs file for RS400 GART !\n");
103 rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
104 return radeon_gart_table_ram_alloc(rdev);
105}
106
107int rs400_gart_enable(struct radeon_device *rdev)
108{
109 uint32_t size_reg;
110 uint32_t tmp;
111
112 radeon_gart_restore(rdev);
113 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
114 tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
115 WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
116 /* Check gart size */
117 switch(rdev->mc.gtt_size / (1024 * 1024)) {
118 case 32:
119 size_reg = RS480_VA_SIZE_32MB;
120 break;
121 case 64:
122 size_reg = RS480_VA_SIZE_64MB;
123 break;
124 case 128:
125 size_reg = RS480_VA_SIZE_128MB;
126 break;
127 case 256:
128 size_reg = RS480_VA_SIZE_256MB;
129 break;
130 case 512:
131 size_reg = RS480_VA_SIZE_512MB;
132 break;
133 case 1024:
134 size_reg = RS480_VA_SIZE_1GB;
135 break;
136 case 2048:
137 size_reg = RS480_VA_SIZE_2GB;
138 break;
139 default:
140 return -EINVAL;
141 }
142 /* It should be fine to program it to max value */
143 if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
144 WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
145 WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
146 } else {
147 WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
148 WREG32(RS480_AGP_BASE_2, 0);
149 }
150 tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
151 tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
152 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
153 WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
154 tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
155 WREG32(RADEON_BUS_CNTL, tmp);
156 } else {
157 WREG32(RADEON_MC_AGP_LOCATION, tmp);
158 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
159 WREG32(RADEON_BUS_CNTL, tmp);
160 }
161 /* Table should be in 32bits address space so ignore bits above. */
162 tmp = (u32)rdev->gart.table_addr & 0xfffff000;
163 tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
164
165 WREG32_MC(RS480_GART_BASE, tmp);
166 /* TODO: more tweaking here */
167 WREG32_MC(RS480_GART_FEATURE_ID,
168 (RS480_TLB_ENABLE |
169 RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
170 /* Disable snooping */
171 WREG32_MC(RS480_AGP_MODE_CNTL,
172 (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
173 /* Disable AGP mode */
174 /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
175 * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
176 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
177 WREG32_MC(RS480_MC_MISC_CNTL,
178 (RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN));
179 } else {
180 WREG32_MC(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
181 }
182 /* Enable gart */
183 WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
184 rs400_gart_tlb_flush(rdev);
185 rdev->gart.ready = true;
186 return 0;
187}
188
189void rs400_gart_disable(struct radeon_device *rdev)
190{
191 uint32_t tmp;
192
193 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
194 tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
195 WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
196 WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
197}
198
199void rs400_gart_fini(struct radeon_device *rdev)
200{
201 radeon_gart_fini(rdev);
202 rs400_gart_disable(rdev);
203 radeon_gart_table_ram_free(rdev);
204}
205
206#define RS400_PTE_WRITEABLE (1 << 2)
207#define RS400_PTE_READABLE (1 << 3)
208
209int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
210{
211 uint32_t entry;
212
213 if (i < 0 || i > rdev->gart.num_gpu_pages) {
214 return -EINVAL;
215 }
216
217 entry = (lower_32_bits(addr) & PAGE_MASK) |
218 ((upper_32_bits(addr) & 0xff) << 4) |
219 RS400_PTE_WRITEABLE | RS400_PTE_READABLE;
220 entry = cpu_to_le32(entry);
221 rdev->gart.table.ram.ptr[i] = entry;
222 return 0;
223}
224
225int rs400_mc_wait_for_idle(struct radeon_device *rdev)
226{
227 unsigned i;
228 uint32_t tmp;
229
230 for (i = 0; i < rdev->usec_timeout; i++) {
231 /* read MC_STATUS */
232 tmp = RREG32(RADEON_MC_STATUS);
233 if (tmp & RADEON_MC_IDLE) {
234 return 0;
235 }
236 DRM_UDELAY(1);
237 }
238 return -1;
239}
240
241void rs400_gpu_init(struct radeon_device *rdev)
242{
243 /* FIXME: is this correct ? */
244 r420_pipes_init(rdev);
245 if (rs400_mc_wait_for_idle(rdev)) {
246 printk(KERN_WARNING "rs400: Failed to wait MC idle while "
247 "programming pipes. Bad things might happen. %08x\n", RREG32(RADEON_MC_STATUS));
248 }
249}
250
251void rs400_mc_init(struct radeon_device *rdev)
252{
253 u64 base;
254
255 rs400_gart_adjust_size(rdev);
256 rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
257 /* DDR for all card after R300 & IGP */
258 rdev->mc.vram_is_ddr = true;
259 rdev->mc.vram_width = 128;
260 r100_vram_init_sizes(rdev);
261 base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
262 radeon_vram_location(rdev, &rdev->mc, base);
263 rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
264 radeon_gtt_location(rdev, &rdev->mc);
265 radeon_update_bandwidth_info(rdev);
266}
267
268uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
269{
270 uint32_t r;
271
272 WREG32(RS480_NB_MC_INDEX, reg & 0xff);
273 r = RREG32(RS480_NB_MC_DATA);
274 WREG32(RS480_NB_MC_INDEX, 0xff);
275 return r;
276}
277
278void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
279{
280 WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
281 WREG32(RS480_NB_MC_DATA, (v));
282 WREG32(RS480_NB_MC_INDEX, 0xff);
283}
284
285#if defined(CONFIG_DEBUG_FS)
286static int rs400_debugfs_gart_info(struct seq_file *m, void *data)
287{
288 struct drm_info_node *node = (struct drm_info_node *) m->private;
289 struct drm_device *dev = node->minor->dev;
290 struct radeon_device *rdev = dev->dev_private;
291 uint32_t tmp;
292
293 tmp = RREG32(RADEON_HOST_PATH_CNTL);
294 seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
295 tmp = RREG32(RADEON_BUS_CNTL);
296 seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
297 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
298 seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
299 if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
300 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
301 seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
302 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
303 seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
304 tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
305 seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
306 tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION);
307 seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
308 tmp = RREG32(RS690_HDP_FB_LOCATION);
309 seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
310 } else {
311 tmp = RREG32(RADEON_AGP_BASE);
312 seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
313 tmp = RREG32(RS480_AGP_BASE_2);
314 seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
315 tmp = RREG32(RADEON_MC_AGP_LOCATION);
316 seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
317 }
318 tmp = RREG32_MC(RS480_GART_BASE);
319 seq_printf(m, "GART_BASE 0x%08x\n", tmp);
320 tmp = RREG32_MC(RS480_GART_FEATURE_ID);
321 seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
322 tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
323 seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
324 tmp = RREG32_MC(RS480_MC_MISC_CNTL);
325 seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
326 tmp = RREG32_MC(0x5F);
327 seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
328 tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
329 seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
330 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
331 seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
332 tmp = RREG32_MC(0x3B);
333 seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
334 tmp = RREG32_MC(0x3C);
335 seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
336 tmp = RREG32_MC(0x30);
337 seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
338 tmp = RREG32_MC(0x31);
339 seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
340 tmp = RREG32_MC(0x32);
341 seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
342 tmp = RREG32_MC(0x33);
343 seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
344 tmp = RREG32_MC(0x34);
345 seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
346 tmp = RREG32_MC(0x35);
347 seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
348 tmp = RREG32_MC(0x36);
349 seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
350 tmp = RREG32_MC(0x37);
351 seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
352 return 0;
353}
354
355static struct drm_info_list rs400_gart_info_list[] = {
356 {"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
357};
358#endif
359
360static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
361{
362#if defined(CONFIG_DEBUG_FS)
363 return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1);
364#else
365 return 0;
366#endif
367}
368
369void rs400_mc_program(struct radeon_device *rdev)
370{
371 struct r100_mc_save save;
372
373 /* Stops all mc clients */
374 r100_mc_stop(rdev, &save);
375
376 /* Wait for mc idle */
377 if (rs400_mc_wait_for_idle(rdev))
378 dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
379 WREG32(R_000148_MC_FB_LOCATION,
380 S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
381 S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
382
383 r100_mc_resume(rdev, &save);
384}
385
386static int rs400_startup(struct radeon_device *rdev)
387{
388 int r;
389
390 r100_set_common_regs(rdev);
391
392 rs400_mc_program(rdev);
393 /* Resume clock */
394 r300_clock_startup(rdev);
395 /* Initialize GPU configuration (# pipes, ...) */
396 rs400_gpu_init(rdev);
397 r100_enable_bm(rdev);
398 /* Initialize GART (initialize after TTM so we can allocate
399 * memory through TTM but finalize after TTM) */
400 r = rs400_gart_enable(rdev);
401 if (r)
402 return r;
403
404 /* allocate wb buffer */
405 r = radeon_wb_init(rdev);
406 if (r)
407 return r;
408
409 /* Enable IRQ */
410 r100_irq_set(rdev);
411 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
412 /* 1M ring buffer */
413 r = r100_cp_init(rdev, 1024 * 1024);
414 if (r) {
415 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
416 return r;
417 }
418 r = r100_ib_init(rdev);
419 if (r) {
420 dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
421 return r;
422 }
423 return 0;
424}
425
426int rs400_resume(struct radeon_device *rdev)
427{
428 /* Make sur GART are not working */
429 rs400_gart_disable(rdev);
430 /* Resume clock before doing reset */
431 r300_clock_startup(rdev);
432 /* setup MC before calling post tables */
433 rs400_mc_program(rdev);
434 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
435 if (radeon_asic_reset(rdev)) {
436 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
437 RREG32(R_000E40_RBBM_STATUS),
438 RREG32(R_0007C0_CP_STAT));
439 }
440 /* post */
441 radeon_combios_asic_init(rdev->ddev);
442 /* Resume clock after posting */
443 r300_clock_startup(rdev);
444 /* Initialize surface registers */
445 radeon_surface_init(rdev);
446 return rs400_startup(rdev);
447}
448
449int rs400_suspend(struct radeon_device *rdev)
450{
451 r100_cp_disable(rdev);
452 radeon_wb_disable(rdev);
453 r100_irq_disable(rdev);
454 rs400_gart_disable(rdev);
455 return 0;
456}
457
458void rs400_fini(struct radeon_device *rdev)
459{
460 r100_cp_fini(rdev);
461 radeon_wb_fini(rdev);
462 r100_ib_fini(rdev);
463 radeon_gem_fini(rdev);
464 rs400_gart_fini(rdev);
465 radeon_irq_kms_fini(rdev);
466 radeon_fence_driver_fini(rdev);
467 radeon_bo_fini(rdev);
468 radeon_atombios_fini(rdev);
469 kfree(rdev->bios);
470 rdev->bios = NULL;
471}
472
473int rs400_init(struct radeon_device *rdev)
474{
475 int r;
476
477 /* Disable VGA */
478 r100_vga_render_disable(rdev);
479 /* Initialize scratch registers */
480 radeon_scratch_init(rdev);
481 /* Initialize surface registers */
482 radeon_surface_init(rdev);
483 /* TODO: disable VGA need to use VGA request */
484 /* restore some register to sane defaults */
485 r100_restore_sanity(rdev);
486 /* BIOS*/
487 if (!radeon_get_bios(rdev)) {
488 if (ASIC_IS_AVIVO(rdev))
489 return -EINVAL;
490 }
491 if (rdev->is_atom_bios) {
492 dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
493 return -EINVAL;
494 } else {
495 r = radeon_combios_init(rdev);
496 if (r)
497 return r;
498 }
499 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
500 if (radeon_asic_reset(rdev)) {
501 dev_warn(rdev->dev,
502 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
503 RREG32(R_000E40_RBBM_STATUS),
504 RREG32(R_0007C0_CP_STAT));
505 }
506 /* check if cards are posted or not */
507 if (radeon_boot_test_post_card(rdev) == false)
508 return -EINVAL;
509
510 /* Initialize clocks */
511 radeon_get_clock_info(rdev->ddev);
512 /* initialize memory controller */
513 rs400_mc_init(rdev);
514 /* Fence driver */
515 r = radeon_fence_driver_init(rdev);
516 if (r)
517 return r;
518 r = radeon_irq_kms_init(rdev);
519 if (r)
520 return r;
521 /* Memory manager */
522 r = radeon_bo_init(rdev);
523 if (r)
524 return r;
525 r = rs400_gart_init(rdev);
526 if (r)
527 return r;
528 r300_set_reg_safe(rdev);
529 rdev->accel_working = true;
530 r = rs400_startup(rdev);
531 if (r) {
532 /* Somethings want wront with the accel init stop accel */
533 dev_err(rdev->dev, "Disabling GPU acceleration\n");
534 r100_cp_fini(rdev);
535 radeon_wb_fini(rdev);
536 r100_ib_fini(rdev);
537 rs400_gart_fini(rdev);
538 radeon_irq_kms_fini(rdev);
539 rdev->accel_working = false;
540 }
541 return 0;
542}
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
29#include <linux/seq_file.h>
30#include <linux/slab.h>
31
32#include <drm/drm_device.h>
33#include <drm/drm_file.h>
34
35#include "radeon.h"
36#include "radeon_asic.h"
37#include "rs400d.h"
38
39/* This files gather functions specifics to : rs400,rs480 */
40static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
41
42void rs400_gart_adjust_size(struct radeon_device *rdev)
43{
44 /* Check gart size */
45 switch (rdev->mc.gtt_size/(1024*1024)) {
46 case 32:
47 case 64:
48 case 128:
49 case 256:
50 case 512:
51 case 1024:
52 case 2048:
53 break;
54 default:
55 DRM_ERROR("Unable to use IGP GART size %uM\n",
56 (unsigned)(rdev->mc.gtt_size >> 20));
57 DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
58 DRM_ERROR("Forcing to 32M GART size\n");
59 rdev->mc.gtt_size = 32 * 1024 * 1024;
60 return;
61 }
62}
63
64void rs400_gart_tlb_flush(struct radeon_device *rdev)
65{
66 uint32_t tmp;
67 unsigned int timeout = rdev->usec_timeout;
68
69 WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
70 do {
71 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
72 if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
73 break;
74 udelay(1);
75 timeout--;
76 } while (timeout > 0);
77 WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
78}
79
80int rs400_gart_init(struct radeon_device *rdev)
81{
82 int r;
83
84 if (rdev->gart.ptr) {
85 WARN(1, "RS400 GART already initialized\n");
86 return 0;
87 }
88 /* Check gart size */
89 switch(rdev->mc.gtt_size / (1024 * 1024)) {
90 case 32:
91 case 64:
92 case 128:
93 case 256:
94 case 512:
95 case 1024:
96 case 2048:
97 break;
98 default:
99 return -EINVAL;
100 }
101 /* Initialize common gart structure */
102 r = radeon_gart_init(rdev);
103 if (r)
104 return r;
105 rs400_debugfs_pcie_gart_info_init(rdev);
106 rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
107 return radeon_gart_table_ram_alloc(rdev);
108}
109
110int rs400_gart_enable(struct radeon_device *rdev)
111{
112 uint32_t size_reg;
113 uint32_t tmp;
114
115 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
116 tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
117 WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
118 /* Check gart size */
119 switch(rdev->mc.gtt_size / (1024 * 1024)) {
120 case 32:
121 size_reg = RS480_VA_SIZE_32MB;
122 break;
123 case 64:
124 size_reg = RS480_VA_SIZE_64MB;
125 break;
126 case 128:
127 size_reg = RS480_VA_SIZE_128MB;
128 break;
129 case 256:
130 size_reg = RS480_VA_SIZE_256MB;
131 break;
132 case 512:
133 size_reg = RS480_VA_SIZE_512MB;
134 break;
135 case 1024:
136 size_reg = RS480_VA_SIZE_1GB;
137 break;
138 case 2048:
139 size_reg = RS480_VA_SIZE_2GB;
140 break;
141 default:
142 return -EINVAL;
143 }
144 /* It should be fine to program it to max value */
145 if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
146 WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
147 WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
148 } else {
149 WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
150 WREG32(RS480_AGP_BASE_2, 0);
151 }
152 tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
153 tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
154 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
155 WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
156 tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
157 WREG32(RADEON_BUS_CNTL, tmp);
158 } else {
159 WREG32(RADEON_MC_AGP_LOCATION, tmp);
160 tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
161 WREG32(RADEON_BUS_CNTL, tmp);
162 }
163 /* Table should be in 32bits address space so ignore bits above. */
164 tmp = (u32)rdev->gart.table_addr & 0xfffff000;
165 tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
166
167 WREG32_MC(RS480_GART_BASE, tmp);
168 /* TODO: more tweaking here */
169 WREG32_MC(RS480_GART_FEATURE_ID,
170 (RS480_TLB_ENABLE |
171 RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
172 /* Disable snooping */
173 WREG32_MC(RS480_AGP_MODE_CNTL,
174 (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
175 /* Disable AGP mode */
176 /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
177 * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
178 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
179 tmp = RREG32_MC(RS480_MC_MISC_CNTL);
180 tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN;
181 WREG32_MC(RS480_MC_MISC_CNTL, tmp);
182 } else {
183 tmp = RREG32_MC(RS480_MC_MISC_CNTL);
184 tmp |= RS480_GART_INDEX_REG_EN;
185 WREG32_MC(RS480_MC_MISC_CNTL, tmp);
186 }
187 /* Enable gart */
188 WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
189 rs400_gart_tlb_flush(rdev);
190 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
191 (unsigned)(rdev->mc.gtt_size >> 20),
192 (unsigned long long)rdev->gart.table_addr);
193 rdev->gart.ready = true;
194 return 0;
195}
196
197void rs400_gart_disable(struct radeon_device *rdev)
198{
199 uint32_t tmp;
200
201 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
202 tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
203 WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
204 WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
205}
206
207void rs400_gart_fini(struct radeon_device *rdev)
208{
209 radeon_gart_fini(rdev);
210 rs400_gart_disable(rdev);
211 radeon_gart_table_ram_free(rdev);
212}
213
214#define RS400_PTE_UNSNOOPED (1 << 0)
215#define RS400_PTE_WRITEABLE (1 << 2)
216#define RS400_PTE_READABLE (1 << 3)
217
218uint64_t rs400_gart_get_page_entry(uint64_t addr, uint32_t flags)
219{
220 uint32_t entry;
221
222 entry = (lower_32_bits(addr) & PAGE_MASK) |
223 ((upper_32_bits(addr) & 0xff) << 4);
224 if (flags & RADEON_GART_PAGE_READ)
225 entry |= RS400_PTE_READABLE;
226 if (flags & RADEON_GART_PAGE_WRITE)
227 entry |= RS400_PTE_WRITEABLE;
228 if (!(flags & RADEON_GART_PAGE_SNOOP))
229 entry |= RS400_PTE_UNSNOOPED;
230 return entry;
231}
232
233void rs400_gart_set_page(struct radeon_device *rdev, unsigned i,
234 uint64_t entry)
235{
236 u32 *gtt = rdev->gart.ptr;
237 gtt[i] = cpu_to_le32(lower_32_bits(entry));
238}
239
240int rs400_mc_wait_for_idle(struct radeon_device *rdev)
241{
242 unsigned i;
243 uint32_t tmp;
244
245 for (i = 0; i < rdev->usec_timeout; i++) {
246 /* read MC_STATUS */
247 tmp = RREG32(RADEON_MC_STATUS);
248 if (tmp & RADEON_MC_IDLE) {
249 return 0;
250 }
251 udelay(1);
252 }
253 return -1;
254}
255
256static void rs400_gpu_init(struct radeon_device *rdev)
257{
258 /* FIXME: is this correct ? */
259 r420_pipes_init(rdev);
260 if (rs400_mc_wait_for_idle(rdev)) {
261 pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n",
262 RREG32(RADEON_MC_STATUS));
263 }
264}
265
266static void rs400_mc_init(struct radeon_device *rdev)
267{
268 u64 base;
269
270 rs400_gart_adjust_size(rdev);
271 rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
272 /* DDR for all card after R300 & IGP */
273 rdev->mc.vram_is_ddr = true;
274 rdev->mc.vram_width = 128;
275 r100_vram_init_sizes(rdev);
276 base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
277 radeon_vram_location(rdev, &rdev->mc, base);
278 rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
279 radeon_gtt_location(rdev, &rdev->mc);
280 radeon_update_bandwidth_info(rdev);
281}
282
283uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
284{
285 unsigned long flags;
286 uint32_t r;
287
288 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
289 WREG32(RS480_NB_MC_INDEX, reg & 0xff);
290 r = RREG32(RS480_NB_MC_DATA);
291 WREG32(RS480_NB_MC_INDEX, 0xff);
292 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
293 return r;
294}
295
296void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
297{
298 unsigned long flags;
299
300 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
301 WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
302 WREG32(RS480_NB_MC_DATA, (v));
303 WREG32(RS480_NB_MC_INDEX, 0xff);
304 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
305}
306
307#if defined(CONFIG_DEBUG_FS)
308static int rs400_debugfs_gart_info_show(struct seq_file *m, void *unused)
309{
310 struct radeon_device *rdev = (struct radeon_device *)m->private;
311 uint32_t tmp;
312
313 tmp = RREG32(RADEON_HOST_PATH_CNTL);
314 seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
315 tmp = RREG32(RADEON_BUS_CNTL);
316 seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
317 tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
318 seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
319 if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
320 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
321 seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
322 tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
323 seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
324 tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
325 seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
326 tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION);
327 seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
328 tmp = RREG32(RS690_HDP_FB_LOCATION);
329 seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
330 } else {
331 tmp = RREG32(RADEON_AGP_BASE);
332 seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
333 tmp = RREG32(RS480_AGP_BASE_2);
334 seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
335 tmp = RREG32(RADEON_MC_AGP_LOCATION);
336 seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
337 }
338 tmp = RREG32_MC(RS480_GART_BASE);
339 seq_printf(m, "GART_BASE 0x%08x\n", tmp);
340 tmp = RREG32_MC(RS480_GART_FEATURE_ID);
341 seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
342 tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
343 seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
344 tmp = RREG32_MC(RS480_MC_MISC_CNTL);
345 seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
346 tmp = RREG32_MC(0x5F);
347 seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
348 tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
349 seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
350 tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
351 seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
352 tmp = RREG32_MC(0x3B);
353 seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
354 tmp = RREG32_MC(0x3C);
355 seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
356 tmp = RREG32_MC(0x30);
357 seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
358 tmp = RREG32_MC(0x31);
359 seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
360 tmp = RREG32_MC(0x32);
361 seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
362 tmp = RREG32_MC(0x33);
363 seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
364 tmp = RREG32_MC(0x34);
365 seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
366 tmp = RREG32_MC(0x35);
367 seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
368 tmp = RREG32_MC(0x36);
369 seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
370 tmp = RREG32_MC(0x37);
371 seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
372 return 0;
373}
374
375DEFINE_SHOW_ATTRIBUTE(rs400_debugfs_gart_info);
376#endif
377
378static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
379{
380#if defined(CONFIG_DEBUG_FS)
381 struct dentry *root = rdev->ddev->primary->debugfs_root;
382
383 debugfs_create_file("rs400_gart_info", 0444, root, rdev,
384 &rs400_debugfs_gart_info_fops);
385#endif
386}
387
388static void rs400_mc_program(struct radeon_device *rdev)
389{
390 struct r100_mc_save save;
391
392 /* Stops all mc clients */
393 r100_mc_stop(rdev, &save);
394
395 /* Wait for mc idle */
396 if (rs400_mc_wait_for_idle(rdev))
397 dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
398 WREG32(R_000148_MC_FB_LOCATION,
399 S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
400 S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
401
402 r100_mc_resume(rdev, &save);
403}
404
405static int rs400_startup(struct radeon_device *rdev)
406{
407 int r;
408
409 r100_set_common_regs(rdev);
410
411 rs400_mc_program(rdev);
412 /* Resume clock */
413 r300_clock_startup(rdev);
414 /* Initialize GPU configuration (# pipes, ...) */
415 rs400_gpu_init(rdev);
416 r100_enable_bm(rdev);
417 /* Initialize GART (initialize after TTM so we can allocate
418 * memory through TTM but finalize after TTM) */
419 r = rs400_gart_enable(rdev);
420 if (r)
421 return r;
422
423 /* allocate wb buffer */
424 r = radeon_wb_init(rdev);
425 if (r)
426 return r;
427
428 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
429 if (r) {
430 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
431 return r;
432 }
433
434 /* Enable IRQ */
435 if (!rdev->irq.installed) {
436 r = radeon_irq_kms_init(rdev);
437 if (r)
438 return r;
439 }
440
441 r100_irq_set(rdev);
442 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
443 /* 1M ring buffer */
444 r = r100_cp_init(rdev, 1024 * 1024);
445 if (r) {
446 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
447 return r;
448 }
449
450 r = radeon_ib_pool_init(rdev);
451 if (r) {
452 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
453 return r;
454 }
455
456 return 0;
457}
458
459int rs400_resume(struct radeon_device *rdev)
460{
461 int r;
462
463 /* Make sur GART are not working */
464 rs400_gart_disable(rdev);
465 /* Resume clock before doing reset */
466 r300_clock_startup(rdev);
467 /* setup MC before calling post tables */
468 rs400_mc_program(rdev);
469 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
470 if (radeon_asic_reset(rdev)) {
471 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
472 RREG32(R_000E40_RBBM_STATUS),
473 RREG32(R_0007C0_CP_STAT));
474 }
475 /* post */
476 radeon_combios_asic_init(rdev->ddev);
477 /* Resume clock after posting */
478 r300_clock_startup(rdev);
479 /* Initialize surface registers */
480 radeon_surface_init(rdev);
481
482 rdev->accel_working = true;
483 r = rs400_startup(rdev);
484 if (r) {
485 rdev->accel_working = false;
486 }
487 return r;
488}
489
490int rs400_suspend(struct radeon_device *rdev)
491{
492 radeon_pm_suspend(rdev);
493 r100_cp_disable(rdev);
494 radeon_wb_disable(rdev);
495 r100_irq_disable(rdev);
496 rs400_gart_disable(rdev);
497 return 0;
498}
499
500void rs400_fini(struct radeon_device *rdev)
501{
502 radeon_pm_fini(rdev);
503 r100_cp_fini(rdev);
504 radeon_wb_fini(rdev);
505 radeon_ib_pool_fini(rdev);
506 radeon_gem_fini(rdev);
507 rs400_gart_fini(rdev);
508 radeon_irq_kms_fini(rdev);
509 radeon_fence_driver_fini(rdev);
510 radeon_bo_fini(rdev);
511 radeon_atombios_fini(rdev);
512 kfree(rdev->bios);
513 rdev->bios = NULL;
514}
515
516int rs400_init(struct radeon_device *rdev)
517{
518 int r;
519
520 /* Disable VGA */
521 r100_vga_render_disable(rdev);
522 /* Initialize scratch registers */
523 radeon_scratch_init(rdev);
524 /* Initialize surface registers */
525 radeon_surface_init(rdev);
526 /* TODO: disable VGA need to use VGA request */
527 /* restore some register to sane defaults */
528 r100_restore_sanity(rdev);
529 /* BIOS*/
530 if (!radeon_get_bios(rdev)) {
531 if (ASIC_IS_AVIVO(rdev))
532 return -EINVAL;
533 }
534 if (rdev->is_atom_bios) {
535 dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
536 return -EINVAL;
537 } else {
538 r = radeon_combios_init(rdev);
539 if (r)
540 return r;
541 }
542 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
543 if (radeon_asic_reset(rdev)) {
544 dev_warn(rdev->dev,
545 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
546 RREG32(R_000E40_RBBM_STATUS),
547 RREG32(R_0007C0_CP_STAT));
548 }
549 /* check if cards are posted or not */
550 if (radeon_boot_test_post_card(rdev) == false)
551 return -EINVAL;
552
553 /* Initialize clocks */
554 radeon_get_clock_info(rdev->ddev);
555 /* initialize memory controller */
556 rs400_mc_init(rdev);
557 /* Fence driver */
558 radeon_fence_driver_init(rdev);
559 /* Memory manager */
560 r = radeon_bo_init(rdev);
561 if (r)
562 return r;
563 r = rs400_gart_init(rdev);
564 if (r)
565 return r;
566 r300_set_reg_safe(rdev);
567
568 /* Initialize power management */
569 radeon_pm_init(rdev);
570
571 rdev->accel_working = true;
572 r = rs400_startup(rdev);
573 if (r) {
574 /* Somethings want wront with the accel init stop accel */
575 dev_err(rdev->dev, "Disabling GPU acceleration\n");
576 r100_cp_fini(rdev);
577 radeon_wb_fini(rdev);
578 radeon_ib_pool_fini(rdev);
579 rs400_gart_fini(rdev);
580 radeon_irq_kms_fini(rdev);
581 rdev->accel_working = false;
582 }
583 return 0;
584}