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1/*
2 * Copyright 2014 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23#include <linux/firmware.h>
24#include "drmP.h"
25#include "amdgpu.h"
26#include "cikd.h"
27#include "cik.h"
28#include "gmc_v7_0.h"
29#include "amdgpu_ucode.h"
30
31#include "bif/bif_4_1_d.h"
32#include "bif/bif_4_1_sh_mask.h"
33
34#include "gmc/gmc_7_1_d.h"
35#include "gmc/gmc_7_1_sh_mask.h"
36
37#include "oss/oss_2_0_d.h"
38#include "oss/oss_2_0_sh_mask.h"
39
40static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev);
41static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
42static int gmc_v7_0_wait_for_idle(void *handle);
43
44MODULE_FIRMWARE("radeon/bonaire_mc.bin");
45MODULE_FIRMWARE("radeon/hawaii_mc.bin");
46MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
47
48static const u32 golden_settings_iceland_a11[] =
49{
50 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
51 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
52 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
53 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
54};
55
56static const u32 iceland_mgcg_cgcg_init[] =
57{
58 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
59};
60
61static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
62{
63 switch (adev->asic_type) {
64 case CHIP_TOPAZ:
65 amdgpu_program_register_sequence(adev,
66 iceland_mgcg_cgcg_init,
67 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
68 amdgpu_program_register_sequence(adev,
69 golden_settings_iceland_a11,
70 (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
71 break;
72 default:
73 break;
74 }
75}
76
77static void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
78 struct amdgpu_mode_mc_save *save)
79{
80 u32 blackout;
81
82 if (adev->mode_info.num_crtc)
83 amdgpu_display_stop_mc_access(adev, save);
84
85 gmc_v7_0_wait_for_idle((void *)adev);
86
87 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
88 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
89 /* Block CPU access */
90 WREG32(mmBIF_FB_EN, 0);
91 /* blackout the MC */
92 blackout = REG_SET_FIELD(blackout,
93 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
94 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
95 }
96 /* wait for the MC to settle */
97 udelay(100);
98}
99
100static void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
101 struct amdgpu_mode_mc_save *save)
102{
103 u32 tmp;
104
105 /* unblackout the MC */
106 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
107 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
108 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
109 /* allow CPU access */
110 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
111 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
112 WREG32(mmBIF_FB_EN, tmp);
113
114 if (adev->mode_info.num_crtc)
115 amdgpu_display_resume_mc_access(adev, save);
116}
117
118/**
119 * gmc_v7_0_init_microcode - load ucode images from disk
120 *
121 * @adev: amdgpu_device pointer
122 *
123 * Use the firmware interface to load the ucode images into
124 * the driver (not loaded into hw).
125 * Returns 0 on success, error on failure.
126 */
127static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
128{
129 const char *chip_name;
130 char fw_name[30];
131 int err;
132
133 DRM_DEBUG("\n");
134
135 switch (adev->asic_type) {
136 case CHIP_BONAIRE:
137 chip_name = "bonaire";
138 break;
139 case CHIP_HAWAII:
140 chip_name = "hawaii";
141 break;
142 case CHIP_TOPAZ:
143 chip_name = "topaz";
144 break;
145 case CHIP_KAVERI:
146 case CHIP_KABINI:
147 case CHIP_MULLINS:
148 return 0;
149 default: BUG();
150 }
151
152 if (adev->asic_type == CHIP_TOPAZ)
153 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
154 else
155 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
156
157 err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
158 if (err)
159 goto out;
160 err = amdgpu_ucode_validate(adev->mc.fw);
161
162out:
163 if (err) {
164 printk(KERN_ERR
165 "cik_mc: Failed to load firmware \"%s\"\n",
166 fw_name);
167 release_firmware(adev->mc.fw);
168 adev->mc.fw = NULL;
169 }
170 return err;
171}
172
173/**
174 * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
175 *
176 * @adev: amdgpu_device pointer
177 *
178 * Load the GDDR MC ucode into the hw (CIK).
179 * Returns 0 on success, error on failure.
180 */
181static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
182{
183 const struct mc_firmware_header_v1_0 *hdr;
184 const __le32 *fw_data = NULL;
185 const __le32 *io_mc_regs = NULL;
186 u32 running;
187 int i, ucode_size, regs_size;
188
189 if (!adev->mc.fw)
190 return -EINVAL;
191
192 hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
193 amdgpu_ucode_print_mc_hdr(&hdr->header);
194
195 adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
196 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
197 io_mc_regs = (const __le32 *)
198 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
199 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
200 fw_data = (const __le32 *)
201 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
202
203 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
204
205 if (running == 0) {
206 /* reset the engine and set to writable */
207 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
208 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
209
210 /* load mc io regs */
211 for (i = 0; i < regs_size; i++) {
212 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
213 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
214 }
215 /* load the MC ucode */
216 for (i = 0; i < ucode_size; i++)
217 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
218
219 /* put the engine back into the active state */
220 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
221 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
222 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
223
224 /* wait for training to complete */
225 for (i = 0; i < adev->usec_timeout; i++) {
226 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
227 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
228 break;
229 udelay(1);
230 }
231 for (i = 0; i < adev->usec_timeout; i++) {
232 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
233 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
234 break;
235 udelay(1);
236 }
237 }
238
239 return 0;
240}
241
242static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
243 struct amdgpu_mc *mc)
244{
245 if (mc->mc_vram_size > 0xFFC0000000ULL) {
246 /* leave room for at least 1024M GTT */
247 dev_warn(adev->dev, "limiting VRAM\n");
248 mc->real_vram_size = 0xFFC0000000ULL;
249 mc->mc_vram_size = 0xFFC0000000ULL;
250 }
251 amdgpu_vram_location(adev, &adev->mc, 0);
252 adev->mc.gtt_base_align = 0;
253 amdgpu_gtt_location(adev, mc);
254}
255
256/**
257 * gmc_v7_0_mc_program - program the GPU memory controller
258 *
259 * @adev: amdgpu_device pointer
260 *
261 * Set the location of vram, gart, and AGP in the GPU's
262 * physical address space (CIK).
263 */
264static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
265{
266 struct amdgpu_mode_mc_save save;
267 u32 tmp;
268 int i, j;
269
270 /* Initialize HDP */
271 for (i = 0, j = 0; i < 32; i++, j += 0x6) {
272 WREG32((0xb05 + j), 0x00000000);
273 WREG32((0xb06 + j), 0x00000000);
274 WREG32((0xb07 + j), 0x00000000);
275 WREG32((0xb08 + j), 0x00000000);
276 WREG32((0xb09 + j), 0x00000000);
277 }
278 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
279
280 if (adev->mode_info.num_crtc)
281 amdgpu_display_set_vga_render_state(adev, false);
282
283 gmc_v7_0_mc_stop(adev, &save);
284 if (gmc_v7_0_wait_for_idle((void *)adev)) {
285 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
286 }
287 /* Update configuration */
288 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
289 adev->mc.vram_start >> 12);
290 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
291 adev->mc.vram_end >> 12);
292 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
293 adev->vram_scratch.gpu_addr >> 12);
294 tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
295 tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
296 WREG32(mmMC_VM_FB_LOCATION, tmp);
297 /* XXX double check these! */
298 WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
299 WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
300 WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
301 WREG32(mmMC_VM_AGP_BASE, 0);
302 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
303 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
304 if (gmc_v7_0_wait_for_idle((void *)adev)) {
305 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
306 }
307 gmc_v7_0_mc_resume(adev, &save);
308
309 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
310
311 tmp = RREG32(mmHDP_MISC_CNTL);
312 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
313 WREG32(mmHDP_MISC_CNTL, tmp);
314
315 tmp = RREG32(mmHDP_HOST_PATH_CNTL);
316 WREG32(mmHDP_HOST_PATH_CNTL, tmp);
317}
318
319/**
320 * gmc_v7_0_mc_init - initialize the memory controller driver params
321 *
322 * @adev: amdgpu_device pointer
323 *
324 * Look up the amount of vram, vram width, and decide how to place
325 * vram and gart within the GPU's physical address space (CIK).
326 * Returns 0 for success.
327 */
328static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
329{
330 u32 tmp;
331 int chansize, numchan;
332
333 /* Get VRAM informations */
334 tmp = RREG32(mmMC_ARB_RAMCFG);
335 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
336 chansize = 64;
337 } else {
338 chansize = 32;
339 }
340 tmp = RREG32(mmMC_SHARED_CHMAP);
341 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
342 case 0:
343 default:
344 numchan = 1;
345 break;
346 case 1:
347 numchan = 2;
348 break;
349 case 2:
350 numchan = 4;
351 break;
352 case 3:
353 numchan = 8;
354 break;
355 case 4:
356 numchan = 3;
357 break;
358 case 5:
359 numchan = 6;
360 break;
361 case 6:
362 numchan = 10;
363 break;
364 case 7:
365 numchan = 12;
366 break;
367 case 8:
368 numchan = 16;
369 break;
370 }
371 adev->mc.vram_width = numchan * chansize;
372 /* Could aper size report 0 ? */
373 adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
374 adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
375 /* size in MB on si */
376 adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
377 adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
378 adev->mc.visible_vram_size = adev->mc.aper_size;
379
380 /* In case the PCI BAR is larger than the actual amount of vram */
381 if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
382 adev->mc.visible_vram_size = adev->mc.real_vram_size;
383
384 /* unless the user had overridden it, set the gart
385 * size equal to the 1024 or vram, whichever is larger.
386 */
387 if (amdgpu_gart_size == -1)
388 adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
389 else
390 adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
391
392 gmc_v7_0_vram_gtt_location(adev, &adev->mc);
393
394 return 0;
395}
396
397/*
398 * GART
399 * VMID 0 is the physical GPU addresses as used by the kernel.
400 * VMIDs 1-15 are used for userspace clients and are handled
401 * by the amdgpu vm/hsa code.
402 */
403
404/**
405 * gmc_v7_0_gart_flush_gpu_tlb - gart tlb flush callback
406 *
407 * @adev: amdgpu_device pointer
408 * @vmid: vm instance to flush
409 *
410 * Flush the TLB for the requested page table (CIK).
411 */
412static void gmc_v7_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
413 uint32_t vmid)
414{
415 /* flush hdp cache */
416 WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
417
418 /* bits 0-15 are the VM contexts0-15 */
419 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
420}
421
422/**
423 * gmc_v7_0_gart_set_pte_pde - update the page tables using MMIO
424 *
425 * @adev: amdgpu_device pointer
426 * @cpu_pt_addr: cpu address of the page table
427 * @gpu_page_idx: entry in the page table to update
428 * @addr: dst addr to write into pte/pde
429 * @flags: access flags
430 *
431 * Update the page tables using the CPU.
432 */
433static int gmc_v7_0_gart_set_pte_pde(struct amdgpu_device *adev,
434 void *cpu_pt_addr,
435 uint32_t gpu_page_idx,
436 uint64_t addr,
437 uint32_t flags)
438{
439 void __iomem *ptr = (void *)cpu_pt_addr;
440 uint64_t value;
441
442 value = addr & 0xFFFFFFFFFFFFF000ULL;
443 value |= flags;
444 writeq(value, ptr + (gpu_page_idx * 8));
445
446 return 0;
447}
448
449/**
450 * gmc_v8_0_set_fault_enable_default - update VM fault handling
451 *
452 * @adev: amdgpu_device pointer
453 * @value: true redirects VM faults to the default page
454 */
455static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
456 bool value)
457{
458 u32 tmp;
459
460 tmp = RREG32(mmVM_CONTEXT1_CNTL);
461 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
462 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
463 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
464 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
465 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
466 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
467 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
468 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
469 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
470 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
471 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
472 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
473 WREG32(mmVM_CONTEXT1_CNTL, tmp);
474}
475
476/**
477 * gmc_v7_0_gart_enable - gart enable
478 *
479 * @adev: amdgpu_device pointer
480 *
481 * This sets up the TLBs, programs the page tables for VMID0,
482 * sets up the hw for VMIDs 1-15 which are allocated on
483 * demand, and sets up the global locations for the LDS, GDS,
484 * and GPUVM for FSA64 clients (CIK).
485 * Returns 0 for success, errors for failure.
486 */
487static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
488{
489 int r, i;
490 u32 tmp;
491
492 if (adev->gart.robj == NULL) {
493 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
494 return -EINVAL;
495 }
496 r = amdgpu_gart_table_vram_pin(adev);
497 if (r)
498 return r;
499 /* Setup TLB control */
500 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
501 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
502 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
503 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
504 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
505 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
506 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
507 /* Setup L2 cache */
508 tmp = RREG32(mmVM_L2_CNTL);
509 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
510 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
511 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
512 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
513 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
514 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
515 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
516 WREG32(mmVM_L2_CNTL, tmp);
517 tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
518 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
519 WREG32(mmVM_L2_CNTL2, tmp);
520 tmp = RREG32(mmVM_L2_CNTL3);
521 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
522 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4);
523 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4);
524 WREG32(mmVM_L2_CNTL3, tmp);
525 /* setup context0 */
526 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12);
527 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12);
528 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
529 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
530 (u32)(adev->dummy_page.addr >> 12));
531 WREG32(mmVM_CONTEXT0_CNTL2, 0);
532 tmp = RREG32(mmVM_CONTEXT0_CNTL);
533 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
534 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
535 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
536 WREG32(mmVM_CONTEXT0_CNTL, tmp);
537
538 WREG32(0x575, 0);
539 WREG32(0x576, 0);
540 WREG32(0x577, 0);
541
542 /* empty context1-15 */
543 /* FIXME start with 4G, once using 2 level pt switch to full
544 * vm size space
545 */
546 /* set vm size, must be a multiple of 4 */
547 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
548 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
549 for (i = 1; i < 16; i++) {
550 if (i < 8)
551 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
552 adev->gart.table_addr >> 12);
553 else
554 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
555 adev->gart.table_addr >> 12);
556 }
557
558 /* enable context1-15 */
559 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
560 (u32)(adev->dummy_page.addr >> 12));
561 WREG32(mmVM_CONTEXT1_CNTL2, 4);
562 tmp = RREG32(mmVM_CONTEXT1_CNTL);
563 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
564 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
565 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
566 amdgpu_vm_block_size - 9);
567 WREG32(mmVM_CONTEXT1_CNTL, tmp);
568 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
569 gmc_v7_0_set_fault_enable_default(adev, false);
570 else
571 gmc_v7_0_set_fault_enable_default(adev, true);
572
573 if (adev->asic_type == CHIP_KAVERI) {
574 tmp = RREG32(mmCHUB_CONTROL);
575 tmp &= ~BYPASS_VM;
576 WREG32(mmCHUB_CONTROL, tmp);
577 }
578
579 gmc_v7_0_gart_flush_gpu_tlb(adev, 0);
580 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
581 (unsigned)(adev->mc.gtt_size >> 20),
582 (unsigned long long)adev->gart.table_addr);
583 adev->gart.ready = true;
584 return 0;
585}
586
587static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
588{
589 int r;
590
591 if (adev->gart.robj) {
592 WARN(1, "R600 PCIE GART already initialized\n");
593 return 0;
594 }
595 /* Initialize common gart structure */
596 r = amdgpu_gart_init(adev);
597 if (r)
598 return r;
599 adev->gart.table_size = adev->gart.num_gpu_pages * 8;
600 return amdgpu_gart_table_vram_alloc(adev);
601}
602
603/**
604 * gmc_v7_0_gart_disable - gart disable
605 *
606 * @adev: amdgpu_device pointer
607 *
608 * This disables all VM page table (CIK).
609 */
610static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
611{
612 u32 tmp;
613
614 /* Disable all tables */
615 WREG32(mmVM_CONTEXT0_CNTL, 0);
616 WREG32(mmVM_CONTEXT1_CNTL, 0);
617 /* Setup TLB control */
618 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
619 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
620 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
621 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
622 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
623 /* Setup L2 cache */
624 tmp = RREG32(mmVM_L2_CNTL);
625 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
626 WREG32(mmVM_L2_CNTL, tmp);
627 WREG32(mmVM_L2_CNTL2, 0);
628 amdgpu_gart_table_vram_unpin(adev);
629}
630
631/**
632 * gmc_v7_0_gart_fini - vm fini callback
633 *
634 * @adev: amdgpu_device pointer
635 *
636 * Tears down the driver GART/VM setup (CIK).
637 */
638static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
639{
640 amdgpu_gart_table_vram_free(adev);
641 amdgpu_gart_fini(adev);
642}
643
644/*
645 * vm
646 * VMID 0 is the physical GPU addresses as used by the kernel.
647 * VMIDs 1-15 are used for userspace clients and are handled
648 * by the amdgpu vm/hsa code.
649 */
650/**
651 * gmc_v7_0_vm_init - cik vm init callback
652 *
653 * @adev: amdgpu_device pointer
654 *
655 * Inits cik specific vm parameters (number of VMs, base of vram for
656 * VMIDs 1-15) (CIK).
657 * Returns 0 for success.
658 */
659static int gmc_v7_0_vm_init(struct amdgpu_device *adev)
660{
661 /*
662 * number of VMs
663 * VMID 0 is reserved for System
664 * amdgpu graphics/compute will use VMIDs 1-7
665 * amdkfd will use VMIDs 8-15
666 */
667 adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
668 amdgpu_vm_manager_init(adev);
669
670 /* base offset of vram pages */
671 if (adev->flags & AMD_IS_APU) {
672 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
673 tmp <<= 22;
674 adev->vm_manager.vram_base_offset = tmp;
675 } else
676 adev->vm_manager.vram_base_offset = 0;
677
678 return 0;
679}
680
681/**
682 * gmc_v7_0_vm_fini - cik vm fini callback
683 *
684 * @adev: amdgpu_device pointer
685 *
686 * Tear down any asic specific VM setup (CIK).
687 */
688static void gmc_v7_0_vm_fini(struct amdgpu_device *adev)
689{
690}
691
692/**
693 * gmc_v7_0_vm_decode_fault - print human readable fault info
694 *
695 * @adev: amdgpu_device pointer
696 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
697 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
698 *
699 * Print human readable fault information (CIK).
700 */
701static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev,
702 u32 status, u32 addr, u32 mc_client)
703{
704 u32 mc_id;
705 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
706 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
707 PROTECTIONS);
708 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
709 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
710
711 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
712 MEMORY_CLIENT_ID);
713
714 dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
715 protections, vmid, addr,
716 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
717 MEMORY_CLIENT_RW) ?
718 "write" : "read", block, mc_client, mc_id);
719}
720
721
722static const u32 mc_cg_registers[] = {
723 mmMC_HUB_MISC_HUB_CG,
724 mmMC_HUB_MISC_SIP_CG,
725 mmMC_HUB_MISC_VM_CG,
726 mmMC_XPB_CLK_GAT,
727 mmATC_MISC_CG,
728 mmMC_CITF_MISC_WR_CG,
729 mmMC_CITF_MISC_RD_CG,
730 mmMC_CITF_MISC_VM_CG,
731 mmVM_L2_CG,
732};
733
734static const u32 mc_cg_ls_en[] = {
735 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
736 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
737 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
738 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
739 ATC_MISC_CG__MEM_LS_ENABLE_MASK,
740 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
741 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
742 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
743 VM_L2_CG__MEM_LS_ENABLE_MASK,
744};
745
746static const u32 mc_cg_en[] = {
747 MC_HUB_MISC_HUB_CG__ENABLE_MASK,
748 MC_HUB_MISC_SIP_CG__ENABLE_MASK,
749 MC_HUB_MISC_VM_CG__ENABLE_MASK,
750 MC_XPB_CLK_GAT__ENABLE_MASK,
751 ATC_MISC_CG__ENABLE_MASK,
752 MC_CITF_MISC_WR_CG__ENABLE_MASK,
753 MC_CITF_MISC_RD_CG__ENABLE_MASK,
754 MC_CITF_MISC_VM_CG__ENABLE_MASK,
755 VM_L2_CG__ENABLE_MASK,
756};
757
758static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
759 bool enable)
760{
761 int i;
762 u32 orig, data;
763
764 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
765 orig = data = RREG32(mc_cg_registers[i]);
766 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
767 data |= mc_cg_ls_en[i];
768 else
769 data &= ~mc_cg_ls_en[i];
770 if (data != orig)
771 WREG32(mc_cg_registers[i], data);
772 }
773}
774
775static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
776 bool enable)
777{
778 int i;
779 u32 orig, data;
780
781 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
782 orig = data = RREG32(mc_cg_registers[i]);
783 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
784 data |= mc_cg_en[i];
785 else
786 data &= ~mc_cg_en[i];
787 if (data != orig)
788 WREG32(mc_cg_registers[i], data);
789 }
790}
791
792static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
793 bool enable)
794{
795 u32 orig, data;
796
797 orig = data = RREG32_PCIE(ixPCIE_CNTL2);
798
799 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
800 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
801 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
802 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
803 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
804 } else {
805 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
806 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
807 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
808 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
809 }
810
811 if (orig != data)
812 WREG32_PCIE(ixPCIE_CNTL2, data);
813}
814
815static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
816 bool enable)
817{
818 u32 orig, data;
819
820 orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
821
822 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
823 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
824 else
825 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
826
827 if (orig != data)
828 WREG32(mmHDP_HOST_PATH_CNTL, data);
829}
830
831static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
832 bool enable)
833{
834 u32 orig, data;
835
836 orig = data = RREG32(mmHDP_MEM_POWER_LS);
837
838 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
839 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
840 else
841 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
842
843 if (orig != data)
844 WREG32(mmHDP_MEM_POWER_LS, data);
845}
846
847static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
848{
849 switch (mc_seq_vram_type) {
850 case MC_SEQ_MISC0__MT__GDDR1:
851 return AMDGPU_VRAM_TYPE_GDDR1;
852 case MC_SEQ_MISC0__MT__DDR2:
853 return AMDGPU_VRAM_TYPE_DDR2;
854 case MC_SEQ_MISC0__MT__GDDR3:
855 return AMDGPU_VRAM_TYPE_GDDR3;
856 case MC_SEQ_MISC0__MT__GDDR4:
857 return AMDGPU_VRAM_TYPE_GDDR4;
858 case MC_SEQ_MISC0__MT__GDDR5:
859 return AMDGPU_VRAM_TYPE_GDDR5;
860 case MC_SEQ_MISC0__MT__HBM:
861 return AMDGPU_VRAM_TYPE_HBM;
862 case MC_SEQ_MISC0__MT__DDR3:
863 return AMDGPU_VRAM_TYPE_DDR3;
864 default:
865 return AMDGPU_VRAM_TYPE_UNKNOWN;
866 }
867}
868
869static int gmc_v7_0_early_init(void *handle)
870{
871 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
872
873 gmc_v7_0_set_gart_funcs(adev);
874 gmc_v7_0_set_irq_funcs(adev);
875
876 return 0;
877}
878
879static int gmc_v7_0_late_init(void *handle)
880{
881 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
882
883 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
884 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
885 else
886 return 0;
887}
888
889static int gmc_v7_0_sw_init(void *handle)
890{
891 int r;
892 int dma_bits;
893 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
894
895 if (adev->flags & AMD_IS_APU) {
896 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
897 } else {
898 u32 tmp = RREG32(mmMC_SEQ_MISC0);
899 tmp &= MC_SEQ_MISC0__MT__MASK;
900 adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
901 }
902
903 r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
904 if (r)
905 return r;
906
907 r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault);
908 if (r)
909 return r;
910
911 /* Adjust VM size here.
912 * Currently set to 4GB ((1 << 20) 4k pages).
913 * Max GPUVM size for cayman and SI is 40 bits.
914 */
915 adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
916
917 /* Set the internal MC address mask
918 * This is the max address of the GPU's
919 * internal address space.
920 */
921 adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
922
923 /* set DMA mask + need_dma32 flags.
924 * PCIE - can handle 40-bits.
925 * IGP - can handle 40-bits
926 * PCI - dma32 for legacy pci gart, 40 bits on newer asics
927 */
928 adev->need_dma32 = false;
929 dma_bits = adev->need_dma32 ? 32 : 40;
930 r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
931 if (r) {
932 adev->need_dma32 = true;
933 dma_bits = 32;
934 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
935 }
936 r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
937 if (r) {
938 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
939 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
940 }
941
942 r = gmc_v7_0_init_microcode(adev);
943 if (r) {
944 DRM_ERROR("Failed to load mc firmware!\n");
945 return r;
946 }
947
948 r = gmc_v7_0_mc_init(adev);
949 if (r)
950 return r;
951
952 /* Memory manager */
953 r = amdgpu_bo_init(adev);
954 if (r)
955 return r;
956
957 r = gmc_v7_0_gart_init(adev);
958 if (r)
959 return r;
960
961 if (!adev->vm_manager.enabled) {
962 r = gmc_v7_0_vm_init(adev);
963 if (r) {
964 dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
965 return r;
966 }
967 adev->vm_manager.enabled = true;
968 }
969
970 return r;
971}
972
973static int gmc_v7_0_sw_fini(void *handle)
974{
975 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
976
977 if (adev->vm_manager.enabled) {
978 amdgpu_vm_manager_fini(adev);
979 gmc_v7_0_vm_fini(adev);
980 adev->vm_manager.enabled = false;
981 }
982 gmc_v7_0_gart_fini(adev);
983 amdgpu_gem_force_release(adev);
984 amdgpu_bo_fini(adev);
985
986 return 0;
987}
988
989static int gmc_v7_0_hw_init(void *handle)
990{
991 int r;
992 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
993
994 gmc_v7_0_init_golden_registers(adev);
995
996 gmc_v7_0_mc_program(adev);
997
998 if (!(adev->flags & AMD_IS_APU)) {
999 r = gmc_v7_0_mc_load_microcode(adev);
1000 if (r) {
1001 DRM_ERROR("Failed to load MC firmware!\n");
1002 return r;
1003 }
1004 }
1005
1006 r = gmc_v7_0_gart_enable(adev);
1007 if (r)
1008 return r;
1009
1010 return r;
1011}
1012
1013static int gmc_v7_0_hw_fini(void *handle)
1014{
1015 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1016
1017 amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1018 gmc_v7_0_gart_disable(adev);
1019
1020 return 0;
1021}
1022
1023static int gmc_v7_0_suspend(void *handle)
1024{
1025 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1026
1027 if (adev->vm_manager.enabled) {
1028 gmc_v7_0_vm_fini(adev);
1029 adev->vm_manager.enabled = false;
1030 }
1031 gmc_v7_0_hw_fini(adev);
1032
1033 return 0;
1034}
1035
1036static int gmc_v7_0_resume(void *handle)
1037{
1038 int r;
1039 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1040
1041 r = gmc_v7_0_hw_init(adev);
1042 if (r)
1043 return r;
1044
1045 if (!adev->vm_manager.enabled) {
1046 r = gmc_v7_0_vm_init(adev);
1047 if (r) {
1048 dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
1049 return r;
1050 }
1051 adev->vm_manager.enabled = true;
1052 }
1053
1054 return r;
1055}
1056
1057static bool gmc_v7_0_is_idle(void *handle)
1058{
1059 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1060 u32 tmp = RREG32(mmSRBM_STATUS);
1061
1062 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1063 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1064 return false;
1065
1066 return true;
1067}
1068
1069static int gmc_v7_0_wait_for_idle(void *handle)
1070{
1071 unsigned i;
1072 u32 tmp;
1073 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1074
1075 for (i = 0; i < adev->usec_timeout; i++) {
1076 /* read MC_STATUS */
1077 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1078 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1079 SRBM_STATUS__MCC_BUSY_MASK |
1080 SRBM_STATUS__MCD_BUSY_MASK |
1081 SRBM_STATUS__VMC_BUSY_MASK);
1082 if (!tmp)
1083 return 0;
1084 udelay(1);
1085 }
1086 return -ETIMEDOUT;
1087
1088}
1089
1090static int gmc_v7_0_soft_reset(void *handle)
1091{
1092 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1093 struct amdgpu_mode_mc_save save;
1094 u32 srbm_soft_reset = 0;
1095 u32 tmp = RREG32(mmSRBM_STATUS);
1096
1097 if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1098 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1099 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1100
1101 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1102 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1103 if (!(adev->flags & AMD_IS_APU))
1104 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1105 SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1106 }
1107
1108 if (srbm_soft_reset) {
1109 gmc_v7_0_mc_stop(adev, &save);
1110 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1111 dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1112 }
1113
1114
1115 tmp = RREG32(mmSRBM_SOFT_RESET);
1116 tmp |= srbm_soft_reset;
1117 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1118 WREG32(mmSRBM_SOFT_RESET, tmp);
1119 tmp = RREG32(mmSRBM_SOFT_RESET);
1120
1121 udelay(50);
1122
1123 tmp &= ~srbm_soft_reset;
1124 WREG32(mmSRBM_SOFT_RESET, tmp);
1125 tmp = RREG32(mmSRBM_SOFT_RESET);
1126
1127 /* Wait a little for things to settle down */
1128 udelay(50);
1129
1130 gmc_v7_0_mc_resume(adev, &save);
1131 udelay(50);
1132 }
1133
1134 return 0;
1135}
1136
1137static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1138 struct amdgpu_irq_src *src,
1139 unsigned type,
1140 enum amdgpu_interrupt_state state)
1141{
1142 u32 tmp;
1143 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1144 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1145 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1146 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1147 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1148 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1149
1150 switch (state) {
1151 case AMDGPU_IRQ_STATE_DISABLE:
1152 /* system context */
1153 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1154 tmp &= ~bits;
1155 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1156 /* VMs */
1157 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1158 tmp &= ~bits;
1159 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1160 break;
1161 case AMDGPU_IRQ_STATE_ENABLE:
1162 /* system context */
1163 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1164 tmp |= bits;
1165 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1166 /* VMs */
1167 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1168 tmp |= bits;
1169 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1170 break;
1171 default:
1172 break;
1173 }
1174
1175 return 0;
1176}
1177
1178static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1179 struct amdgpu_irq_src *source,
1180 struct amdgpu_iv_entry *entry)
1181{
1182 u32 addr, status, mc_client;
1183
1184 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1185 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1186 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1187 /* reset addr and status */
1188 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1189
1190 if (!addr && !status)
1191 return 0;
1192
1193 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1194 gmc_v7_0_set_fault_enable_default(adev, false);
1195
1196 if (printk_ratelimit()) {
1197 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1198 entry->src_id, entry->src_data);
1199 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
1200 addr);
1201 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1202 status);
1203 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client);
1204 }
1205
1206 return 0;
1207}
1208
1209static int gmc_v7_0_set_clockgating_state(void *handle,
1210 enum amd_clockgating_state state)
1211{
1212 bool gate = false;
1213 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1214
1215 if (state == AMD_CG_STATE_GATE)
1216 gate = true;
1217
1218 if (!(adev->flags & AMD_IS_APU)) {
1219 gmc_v7_0_enable_mc_mgcg(adev, gate);
1220 gmc_v7_0_enable_mc_ls(adev, gate);
1221 }
1222 gmc_v7_0_enable_bif_mgls(adev, gate);
1223 gmc_v7_0_enable_hdp_mgcg(adev, gate);
1224 gmc_v7_0_enable_hdp_ls(adev, gate);
1225
1226 return 0;
1227}
1228
1229static int gmc_v7_0_set_powergating_state(void *handle,
1230 enum amd_powergating_state state)
1231{
1232 return 0;
1233}
1234
1235static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1236 .name = "gmc_v7_0",
1237 .early_init = gmc_v7_0_early_init,
1238 .late_init = gmc_v7_0_late_init,
1239 .sw_init = gmc_v7_0_sw_init,
1240 .sw_fini = gmc_v7_0_sw_fini,
1241 .hw_init = gmc_v7_0_hw_init,
1242 .hw_fini = gmc_v7_0_hw_fini,
1243 .suspend = gmc_v7_0_suspend,
1244 .resume = gmc_v7_0_resume,
1245 .is_idle = gmc_v7_0_is_idle,
1246 .wait_for_idle = gmc_v7_0_wait_for_idle,
1247 .soft_reset = gmc_v7_0_soft_reset,
1248 .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1249 .set_powergating_state = gmc_v7_0_set_powergating_state,
1250};
1251
1252static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = {
1253 .flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb,
1254 .set_pte_pde = gmc_v7_0_gart_set_pte_pde,
1255};
1256
1257static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1258 .set = gmc_v7_0_vm_fault_interrupt_state,
1259 .process = gmc_v7_0_process_interrupt,
1260};
1261
1262static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev)
1263{
1264 if (adev->gart.gart_funcs == NULL)
1265 adev->gart.gart_funcs = &gmc_v7_0_gart_funcs;
1266}
1267
1268static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1269{
1270 adev->mc.vm_fault.num_types = 1;
1271 adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1272}
1273
1274const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1275{
1276 .type = AMD_IP_BLOCK_TYPE_GMC,
1277 .major = 7,
1278 .minor = 0,
1279 .rev = 0,
1280 .funcs = &gmc_v7_0_ip_funcs,
1281};
1282
1283const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1284{
1285 .type = AMD_IP_BLOCK_TYPE_GMC,
1286 .major = 7,
1287 .minor = 4,
1288 .rev = 0,
1289 .funcs = &gmc_v7_0_ip_funcs,
1290};
1/*
2 * Copyright 2014 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24#include <linux/firmware.h>
25#include <linux/module.h>
26#include <linux/pci.h>
27
28#include <drm/drm_cache.h>
29#include "amdgpu.h"
30#include "cikd.h"
31#include "cik.h"
32#include "gmc_v7_0.h"
33#include "amdgpu_ucode.h"
34#include "amdgpu_amdkfd.h"
35#include "amdgpu_gem.h"
36
37#include "bif/bif_4_1_d.h"
38#include "bif/bif_4_1_sh_mask.h"
39
40#include "gmc/gmc_7_1_d.h"
41#include "gmc/gmc_7_1_sh_mask.h"
42
43#include "oss/oss_2_0_d.h"
44#include "oss/oss_2_0_sh_mask.h"
45
46#include "dce/dce_8_0_d.h"
47#include "dce/dce_8_0_sh_mask.h"
48
49#include "amdgpu_atombios.h"
50
51#include "ivsrcid/ivsrcid_vislands30.h"
52
53static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
54static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
55static int gmc_v7_0_wait_for_idle(void *handle);
56
57MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
58MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
59MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
60
61static const u32 golden_settings_iceland_a11[] =
62{
63 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
64 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
65 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
66 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
67};
68
69static const u32 iceland_mgcg_cgcg_init[] =
70{
71 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
72};
73
74static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
75{
76 switch (adev->asic_type) {
77 case CHIP_TOPAZ:
78 amdgpu_device_program_register_sequence(adev,
79 iceland_mgcg_cgcg_init,
80 ARRAY_SIZE(iceland_mgcg_cgcg_init));
81 amdgpu_device_program_register_sequence(adev,
82 golden_settings_iceland_a11,
83 ARRAY_SIZE(golden_settings_iceland_a11));
84 break;
85 default:
86 break;
87 }
88}
89
90static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
91{
92 u32 blackout;
93
94 gmc_v7_0_wait_for_idle((void *)adev);
95
96 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
97 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
98 /* Block CPU access */
99 WREG32(mmBIF_FB_EN, 0);
100 /* blackout the MC */
101 blackout = REG_SET_FIELD(blackout,
102 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
103 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
104 }
105 /* wait for the MC to settle */
106 udelay(100);
107}
108
109static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
110{
111 u32 tmp;
112
113 /* unblackout the MC */
114 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
115 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
116 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
117 /* allow CPU access */
118 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
119 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
120 WREG32(mmBIF_FB_EN, tmp);
121}
122
123/**
124 * gmc_v7_0_init_microcode - load ucode images from disk
125 *
126 * @adev: amdgpu_device pointer
127 *
128 * Use the firmware interface to load the ucode images into
129 * the driver (not loaded into hw).
130 * Returns 0 on success, error on failure.
131 */
132static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
133{
134 const char *chip_name;
135 char fw_name[30];
136 int err;
137
138 DRM_DEBUG("\n");
139
140 switch (adev->asic_type) {
141 case CHIP_BONAIRE:
142 chip_name = "bonaire";
143 break;
144 case CHIP_HAWAII:
145 chip_name = "hawaii";
146 break;
147 case CHIP_TOPAZ:
148 chip_name = "topaz";
149 break;
150 case CHIP_KAVERI:
151 case CHIP_KABINI:
152 case CHIP_MULLINS:
153 return 0;
154 default: BUG();
155 }
156
157 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
158
159 err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
160 if (err)
161 goto out;
162 err = amdgpu_ucode_validate(adev->gmc.fw);
163
164out:
165 if (err) {
166 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
167 release_firmware(adev->gmc.fw);
168 adev->gmc.fw = NULL;
169 }
170 return err;
171}
172
173/**
174 * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
175 *
176 * @adev: amdgpu_device pointer
177 *
178 * Load the GDDR MC ucode into the hw (CIK).
179 * Returns 0 on success, error on failure.
180 */
181static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
182{
183 const struct mc_firmware_header_v1_0 *hdr;
184 const __le32 *fw_data = NULL;
185 const __le32 *io_mc_regs = NULL;
186 u32 running;
187 int i, ucode_size, regs_size;
188
189 if (!adev->gmc.fw)
190 return -EINVAL;
191
192 hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
193 amdgpu_ucode_print_mc_hdr(&hdr->header);
194
195 adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
196 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
197 io_mc_regs = (const __le32 *)
198 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
199 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
200 fw_data = (const __le32 *)
201 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
202
203 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
204
205 if (running == 0) {
206 /* reset the engine and set to writable */
207 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
208 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
209
210 /* load mc io regs */
211 for (i = 0; i < regs_size; i++) {
212 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
213 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
214 }
215 /* load the MC ucode */
216 for (i = 0; i < ucode_size; i++)
217 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
218
219 /* put the engine back into the active state */
220 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
221 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
222 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
223
224 /* wait for training to complete */
225 for (i = 0; i < adev->usec_timeout; i++) {
226 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
227 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
228 break;
229 udelay(1);
230 }
231 for (i = 0; i < adev->usec_timeout; i++) {
232 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
233 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
234 break;
235 udelay(1);
236 }
237 }
238
239 return 0;
240}
241
242static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
243 struct amdgpu_gmc *mc)
244{
245 u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
246 base <<= 24;
247
248 amdgpu_gmc_vram_location(adev, mc, base);
249 amdgpu_gmc_gart_location(adev, mc);
250}
251
252/**
253 * gmc_v7_0_mc_program - program the GPU memory controller
254 *
255 * @adev: amdgpu_device pointer
256 *
257 * Set the location of vram, gart, and AGP in the GPU's
258 * physical address space (CIK).
259 */
260static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
261{
262 u32 tmp;
263 int i, j;
264
265 /* Initialize HDP */
266 for (i = 0, j = 0; i < 32; i++, j += 0x6) {
267 WREG32((0xb05 + j), 0x00000000);
268 WREG32((0xb06 + j), 0x00000000);
269 WREG32((0xb07 + j), 0x00000000);
270 WREG32((0xb08 + j), 0x00000000);
271 WREG32((0xb09 + j), 0x00000000);
272 }
273 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
274
275 if (gmc_v7_0_wait_for_idle((void *)adev)) {
276 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
277 }
278 if (adev->mode_info.num_crtc) {
279 /* Lockout access through VGA aperture*/
280 tmp = RREG32(mmVGA_HDP_CONTROL);
281 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
282 WREG32(mmVGA_HDP_CONTROL, tmp);
283
284 /* disable VGA render */
285 tmp = RREG32(mmVGA_RENDER_CONTROL);
286 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
287 WREG32(mmVGA_RENDER_CONTROL, tmp);
288 }
289 /* Update configuration */
290 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
291 adev->gmc.vram_start >> 12);
292 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
293 adev->gmc.vram_end >> 12);
294 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
295 adev->vram_scratch.gpu_addr >> 12);
296 WREG32(mmMC_VM_AGP_BASE, 0);
297 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
298 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
299 if (gmc_v7_0_wait_for_idle((void *)adev)) {
300 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
301 }
302
303 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
304
305 tmp = RREG32(mmHDP_MISC_CNTL);
306 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
307 WREG32(mmHDP_MISC_CNTL, tmp);
308
309 tmp = RREG32(mmHDP_HOST_PATH_CNTL);
310 WREG32(mmHDP_HOST_PATH_CNTL, tmp);
311}
312
313/**
314 * gmc_v7_0_mc_init - initialize the memory controller driver params
315 *
316 * @adev: amdgpu_device pointer
317 *
318 * Look up the amount of vram, vram width, and decide how to place
319 * vram and gart within the GPU's physical address space (CIK).
320 * Returns 0 for success.
321 */
322static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
323{
324 int r;
325
326 adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
327 if (!adev->gmc.vram_width) {
328 u32 tmp;
329 int chansize, numchan;
330
331 /* Get VRAM informations */
332 tmp = RREG32(mmMC_ARB_RAMCFG);
333 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
334 chansize = 64;
335 } else {
336 chansize = 32;
337 }
338 tmp = RREG32(mmMC_SHARED_CHMAP);
339 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
340 case 0:
341 default:
342 numchan = 1;
343 break;
344 case 1:
345 numchan = 2;
346 break;
347 case 2:
348 numchan = 4;
349 break;
350 case 3:
351 numchan = 8;
352 break;
353 case 4:
354 numchan = 3;
355 break;
356 case 5:
357 numchan = 6;
358 break;
359 case 6:
360 numchan = 10;
361 break;
362 case 7:
363 numchan = 12;
364 break;
365 case 8:
366 numchan = 16;
367 break;
368 }
369 adev->gmc.vram_width = numchan * chansize;
370 }
371 /* size in MB on si */
372 adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
373 adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
374
375 if (!(adev->flags & AMD_IS_APU)) {
376 r = amdgpu_device_resize_fb_bar(adev);
377 if (r)
378 return r;
379 }
380 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
381 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
382
383#ifdef CONFIG_X86_64
384 if (adev->flags & AMD_IS_APU) {
385 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
386 adev->gmc.aper_size = adev->gmc.real_vram_size;
387 }
388#endif
389
390 /* In case the PCI BAR is larger than the actual amount of vram */
391 adev->gmc.visible_vram_size = adev->gmc.aper_size;
392 if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
393 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
394
395 /* set the gart size */
396 if (amdgpu_gart_size == -1) {
397 switch (adev->asic_type) {
398 case CHIP_TOPAZ: /* no MM engines */
399 default:
400 adev->gmc.gart_size = 256ULL << 20;
401 break;
402#ifdef CONFIG_DRM_AMDGPU_CIK
403 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
404 case CHIP_HAWAII: /* UVD, VCE do not support GPUVM */
405 case CHIP_KAVERI: /* UVD, VCE do not support GPUVM */
406 case CHIP_KABINI: /* UVD, VCE do not support GPUVM */
407 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
408 adev->gmc.gart_size = 1024ULL << 20;
409 break;
410#endif
411 }
412 } else {
413 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
414 }
415
416 gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
417
418 return 0;
419}
420
421/*
422 * GART
423 * VMID 0 is the physical GPU addresses as used by the kernel.
424 * VMIDs 1-15 are used for userspace clients and are handled
425 * by the amdgpu vm/hsa code.
426 */
427
428/**
429 * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
430 *
431 * @adev: amdgpu_device pointer
432 * @vmid: vm instance to flush
433 *
434 * Flush the TLB for the requested page table (CIK).
435 */
436static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
437 uint32_t vmhub, uint32_t flush_type)
438{
439 /* bits 0-15 are the VM contexts0-15 */
440 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
441}
442
443static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
444 unsigned vmid, uint64_t pd_addr)
445{
446 uint32_t reg;
447
448 if (vmid < 8)
449 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
450 else
451 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
452 amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
453
454 /* bits 0-15 are the VM contexts0-15 */
455 amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
456
457 return pd_addr;
458}
459
460static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
461 unsigned pasid)
462{
463 amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
464}
465
466static uint64_t gmc_v7_0_get_vm_pte_flags(struct amdgpu_device *adev,
467 uint32_t flags)
468{
469 uint64_t pte_flag = 0;
470
471 if (flags & AMDGPU_VM_PAGE_READABLE)
472 pte_flag |= AMDGPU_PTE_READABLE;
473 if (flags & AMDGPU_VM_PAGE_WRITEABLE)
474 pte_flag |= AMDGPU_PTE_WRITEABLE;
475 if (flags & AMDGPU_VM_PAGE_PRT)
476 pte_flag |= AMDGPU_PTE_PRT;
477
478 return pte_flag;
479}
480
481static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
482 uint64_t *addr, uint64_t *flags)
483{
484 BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
485}
486
487/**
488 * gmc_v8_0_set_fault_enable_default - update VM fault handling
489 *
490 * @adev: amdgpu_device pointer
491 * @value: true redirects VM faults to the default page
492 */
493static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
494 bool value)
495{
496 u32 tmp;
497
498 tmp = RREG32(mmVM_CONTEXT1_CNTL);
499 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
500 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
501 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
502 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
503 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
504 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
505 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
506 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
507 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
508 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
509 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
510 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
511 WREG32(mmVM_CONTEXT1_CNTL, tmp);
512}
513
514/**
515 * gmc_v7_0_set_prt - set PRT VM fault
516 *
517 * @adev: amdgpu_device pointer
518 * @enable: enable/disable VM fault handling for PRT
519 */
520static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
521{
522 uint32_t tmp;
523
524 if (enable && !adev->gmc.prt_warning) {
525 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
526 adev->gmc.prt_warning = true;
527 }
528
529 tmp = RREG32(mmVM_PRT_CNTL);
530 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
531 CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
532 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
533 CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
534 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
535 TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
536 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
537 TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
538 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
539 L2_CACHE_STORE_INVALID_ENTRIES, enable);
540 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
541 L1_TLB_STORE_INVALID_ENTRIES, enable);
542 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
543 MASK_PDE0_FAULT, enable);
544 WREG32(mmVM_PRT_CNTL, tmp);
545
546 if (enable) {
547 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
548 uint32_t high = adev->vm_manager.max_pfn -
549 (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
550
551 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
552 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
553 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
554 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
555 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
556 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
557 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
558 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
559 } else {
560 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
561 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
562 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
563 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
564 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
565 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
566 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
567 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
568 }
569}
570
571/**
572 * gmc_v7_0_gart_enable - gart enable
573 *
574 * @adev: amdgpu_device pointer
575 *
576 * This sets up the TLBs, programs the page tables for VMID0,
577 * sets up the hw for VMIDs 1-15 which are allocated on
578 * demand, and sets up the global locations for the LDS, GDS,
579 * and GPUVM for FSA64 clients (CIK).
580 * Returns 0 for success, errors for failure.
581 */
582static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
583{
584 uint64_t table_addr;
585 int r, i;
586 u32 tmp, field;
587
588 if (adev->gart.bo == NULL) {
589 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
590 return -EINVAL;
591 }
592 r = amdgpu_gart_table_vram_pin(adev);
593 if (r)
594 return r;
595
596 table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
597
598 /* Setup TLB control */
599 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
600 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
601 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
602 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
603 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
604 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
605 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
606 /* Setup L2 cache */
607 tmp = RREG32(mmVM_L2_CNTL);
608 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
609 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
610 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
611 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
612 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
613 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
614 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
615 WREG32(mmVM_L2_CNTL, tmp);
616 tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
617 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
618 WREG32(mmVM_L2_CNTL2, tmp);
619
620 field = adev->vm_manager.fragment_size;
621 tmp = RREG32(mmVM_L2_CNTL3);
622 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
623 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
624 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
625 WREG32(mmVM_L2_CNTL3, tmp);
626 /* setup context0 */
627 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
628 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
629 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
630 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
631 (u32)(adev->dummy_page_addr >> 12));
632 WREG32(mmVM_CONTEXT0_CNTL2, 0);
633 tmp = RREG32(mmVM_CONTEXT0_CNTL);
634 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
635 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
636 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
637 WREG32(mmVM_CONTEXT0_CNTL, tmp);
638
639 WREG32(0x575, 0);
640 WREG32(0x576, 0);
641 WREG32(0x577, 0);
642
643 /* empty context1-15 */
644 /* FIXME start with 4G, once using 2 level pt switch to full
645 * vm size space
646 */
647 /* set vm size, must be a multiple of 4 */
648 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
649 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
650 for (i = 1; i < 16; i++) {
651 if (i < 8)
652 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
653 table_addr >> 12);
654 else
655 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
656 table_addr >> 12);
657 }
658
659 /* enable context1-15 */
660 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
661 (u32)(adev->dummy_page_addr >> 12));
662 WREG32(mmVM_CONTEXT1_CNTL2, 4);
663 tmp = RREG32(mmVM_CONTEXT1_CNTL);
664 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
665 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
666 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
667 adev->vm_manager.block_size - 9);
668 WREG32(mmVM_CONTEXT1_CNTL, tmp);
669 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
670 gmc_v7_0_set_fault_enable_default(adev, false);
671 else
672 gmc_v7_0_set_fault_enable_default(adev, true);
673
674 if (adev->asic_type == CHIP_KAVERI) {
675 tmp = RREG32(mmCHUB_CONTROL);
676 tmp &= ~BYPASS_VM;
677 WREG32(mmCHUB_CONTROL, tmp);
678 }
679
680 gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
681 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
682 (unsigned)(adev->gmc.gart_size >> 20),
683 (unsigned long long)table_addr);
684 adev->gart.ready = true;
685 return 0;
686}
687
688static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
689{
690 int r;
691
692 if (adev->gart.bo) {
693 WARN(1, "R600 PCIE GART already initialized\n");
694 return 0;
695 }
696 /* Initialize common gart structure */
697 r = amdgpu_gart_init(adev);
698 if (r)
699 return r;
700 adev->gart.table_size = adev->gart.num_gpu_pages * 8;
701 adev->gart.gart_pte_flags = 0;
702 return amdgpu_gart_table_vram_alloc(adev);
703}
704
705/**
706 * gmc_v7_0_gart_disable - gart disable
707 *
708 * @adev: amdgpu_device pointer
709 *
710 * This disables all VM page table (CIK).
711 */
712static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
713{
714 u32 tmp;
715
716 /* Disable all tables */
717 WREG32(mmVM_CONTEXT0_CNTL, 0);
718 WREG32(mmVM_CONTEXT1_CNTL, 0);
719 /* Setup TLB control */
720 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
721 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
722 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
723 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
724 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
725 /* Setup L2 cache */
726 tmp = RREG32(mmVM_L2_CNTL);
727 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
728 WREG32(mmVM_L2_CNTL, tmp);
729 WREG32(mmVM_L2_CNTL2, 0);
730 amdgpu_gart_table_vram_unpin(adev);
731}
732
733/**
734 * gmc_v7_0_vm_decode_fault - print human readable fault info
735 *
736 * @adev: amdgpu_device pointer
737 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
738 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
739 *
740 * Print human readable fault information (CIK).
741 */
742static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
743 u32 addr, u32 mc_client, unsigned pasid)
744{
745 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
746 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
747 PROTECTIONS);
748 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
749 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
750 u32 mc_id;
751
752 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
753 MEMORY_CLIENT_ID);
754
755 dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
756 protections, vmid, pasid, addr,
757 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
758 MEMORY_CLIENT_RW) ?
759 "write" : "read", block, mc_client, mc_id);
760}
761
762
763static const u32 mc_cg_registers[] = {
764 mmMC_HUB_MISC_HUB_CG,
765 mmMC_HUB_MISC_SIP_CG,
766 mmMC_HUB_MISC_VM_CG,
767 mmMC_XPB_CLK_GAT,
768 mmATC_MISC_CG,
769 mmMC_CITF_MISC_WR_CG,
770 mmMC_CITF_MISC_RD_CG,
771 mmMC_CITF_MISC_VM_CG,
772 mmVM_L2_CG,
773};
774
775static const u32 mc_cg_ls_en[] = {
776 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
777 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
778 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
779 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
780 ATC_MISC_CG__MEM_LS_ENABLE_MASK,
781 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
782 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
783 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
784 VM_L2_CG__MEM_LS_ENABLE_MASK,
785};
786
787static const u32 mc_cg_en[] = {
788 MC_HUB_MISC_HUB_CG__ENABLE_MASK,
789 MC_HUB_MISC_SIP_CG__ENABLE_MASK,
790 MC_HUB_MISC_VM_CG__ENABLE_MASK,
791 MC_XPB_CLK_GAT__ENABLE_MASK,
792 ATC_MISC_CG__ENABLE_MASK,
793 MC_CITF_MISC_WR_CG__ENABLE_MASK,
794 MC_CITF_MISC_RD_CG__ENABLE_MASK,
795 MC_CITF_MISC_VM_CG__ENABLE_MASK,
796 VM_L2_CG__ENABLE_MASK,
797};
798
799static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
800 bool enable)
801{
802 int i;
803 u32 orig, data;
804
805 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
806 orig = data = RREG32(mc_cg_registers[i]);
807 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
808 data |= mc_cg_ls_en[i];
809 else
810 data &= ~mc_cg_ls_en[i];
811 if (data != orig)
812 WREG32(mc_cg_registers[i], data);
813 }
814}
815
816static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
817 bool enable)
818{
819 int i;
820 u32 orig, data;
821
822 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
823 orig = data = RREG32(mc_cg_registers[i]);
824 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
825 data |= mc_cg_en[i];
826 else
827 data &= ~mc_cg_en[i];
828 if (data != orig)
829 WREG32(mc_cg_registers[i], data);
830 }
831}
832
833static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
834 bool enable)
835{
836 u32 orig, data;
837
838 orig = data = RREG32_PCIE(ixPCIE_CNTL2);
839
840 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
841 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
842 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
843 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
844 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
845 } else {
846 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
847 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
848 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
849 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
850 }
851
852 if (orig != data)
853 WREG32_PCIE(ixPCIE_CNTL2, data);
854}
855
856static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
857 bool enable)
858{
859 u32 orig, data;
860
861 orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
862
863 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
864 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
865 else
866 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
867
868 if (orig != data)
869 WREG32(mmHDP_HOST_PATH_CNTL, data);
870}
871
872static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
873 bool enable)
874{
875 u32 orig, data;
876
877 orig = data = RREG32(mmHDP_MEM_POWER_LS);
878
879 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
880 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
881 else
882 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
883
884 if (orig != data)
885 WREG32(mmHDP_MEM_POWER_LS, data);
886}
887
888static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
889{
890 switch (mc_seq_vram_type) {
891 case MC_SEQ_MISC0__MT__GDDR1:
892 return AMDGPU_VRAM_TYPE_GDDR1;
893 case MC_SEQ_MISC0__MT__DDR2:
894 return AMDGPU_VRAM_TYPE_DDR2;
895 case MC_SEQ_MISC0__MT__GDDR3:
896 return AMDGPU_VRAM_TYPE_GDDR3;
897 case MC_SEQ_MISC0__MT__GDDR4:
898 return AMDGPU_VRAM_TYPE_GDDR4;
899 case MC_SEQ_MISC0__MT__GDDR5:
900 return AMDGPU_VRAM_TYPE_GDDR5;
901 case MC_SEQ_MISC0__MT__HBM:
902 return AMDGPU_VRAM_TYPE_HBM;
903 case MC_SEQ_MISC0__MT__DDR3:
904 return AMDGPU_VRAM_TYPE_DDR3;
905 default:
906 return AMDGPU_VRAM_TYPE_UNKNOWN;
907 }
908}
909
910static int gmc_v7_0_early_init(void *handle)
911{
912 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
913
914 gmc_v7_0_set_gmc_funcs(adev);
915 gmc_v7_0_set_irq_funcs(adev);
916
917 adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
918 adev->gmc.shared_aperture_end =
919 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
920 adev->gmc.private_aperture_start =
921 adev->gmc.shared_aperture_end + 1;
922 adev->gmc.private_aperture_end =
923 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
924
925 return 0;
926}
927
928static int gmc_v7_0_late_init(void *handle)
929{
930 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
931
932 amdgpu_bo_late_init(adev);
933
934 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
935 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
936 else
937 return 0;
938}
939
940static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
941{
942 u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
943 unsigned size;
944
945 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
946 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
947 } else {
948 u32 viewport = RREG32(mmVIEWPORT_SIZE);
949 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
950 REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
951 4);
952 }
953 /* return 0 if the pre-OS buffer uses up most of vram */
954 if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
955 return 0;
956 return size;
957}
958
959static int gmc_v7_0_sw_init(void *handle)
960{
961 int r;
962 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
963
964 adev->num_vmhubs = 1;
965
966 if (adev->flags & AMD_IS_APU) {
967 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
968 } else {
969 u32 tmp = RREG32(mmMC_SEQ_MISC0);
970 tmp &= MC_SEQ_MISC0__MT__MASK;
971 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
972 }
973
974 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
975 if (r)
976 return r;
977
978 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
979 if (r)
980 return r;
981
982 /* Adjust VM size here.
983 * Currently set to 4GB ((1 << 20) 4k pages).
984 * Max GPUVM size for cayman and SI is 40 bits.
985 */
986 amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
987
988 /* Set the internal MC address mask
989 * This is the max address of the GPU's
990 * internal address space.
991 */
992 adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
993
994 r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
995 if (r) {
996 pr_warn("amdgpu: No suitable DMA available\n");
997 return r;
998 }
999 adev->need_swiotlb = drm_need_swiotlb(40);
1000
1001 r = gmc_v7_0_init_microcode(adev);
1002 if (r) {
1003 DRM_ERROR("Failed to load mc firmware!\n");
1004 return r;
1005 }
1006
1007 r = gmc_v7_0_mc_init(adev);
1008 if (r)
1009 return r;
1010
1011 adev->gmc.stolen_size = gmc_v7_0_get_vbios_fb_size(adev);
1012
1013 /* Memory manager */
1014 r = amdgpu_bo_init(adev);
1015 if (r)
1016 return r;
1017
1018 r = gmc_v7_0_gart_init(adev);
1019 if (r)
1020 return r;
1021
1022 /*
1023 * number of VMs
1024 * VMID 0 is reserved for System
1025 * amdgpu graphics/compute will use VMIDs 1-7
1026 * amdkfd will use VMIDs 8-15
1027 */
1028 adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
1029 amdgpu_vm_manager_init(adev);
1030
1031 /* base offset of vram pages */
1032 if (adev->flags & AMD_IS_APU) {
1033 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1034
1035 tmp <<= 22;
1036 adev->vm_manager.vram_base_offset = tmp;
1037 } else {
1038 adev->vm_manager.vram_base_offset = 0;
1039 }
1040
1041 adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1042 GFP_KERNEL);
1043 if (!adev->gmc.vm_fault_info)
1044 return -ENOMEM;
1045 atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1046
1047 return 0;
1048}
1049
1050static int gmc_v7_0_sw_fini(void *handle)
1051{
1052 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1053
1054 amdgpu_gem_force_release(adev);
1055 amdgpu_vm_manager_fini(adev);
1056 kfree(adev->gmc.vm_fault_info);
1057 amdgpu_gart_table_vram_free(adev);
1058 amdgpu_bo_fini(adev);
1059 amdgpu_gart_fini(adev);
1060 release_firmware(adev->gmc.fw);
1061 adev->gmc.fw = NULL;
1062
1063 return 0;
1064}
1065
1066static int gmc_v7_0_hw_init(void *handle)
1067{
1068 int r;
1069 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1070
1071 gmc_v7_0_init_golden_registers(adev);
1072
1073 gmc_v7_0_mc_program(adev);
1074
1075 if (!(adev->flags & AMD_IS_APU)) {
1076 r = gmc_v7_0_mc_load_microcode(adev);
1077 if (r) {
1078 DRM_ERROR("Failed to load MC firmware!\n");
1079 return r;
1080 }
1081 }
1082
1083 r = gmc_v7_0_gart_enable(adev);
1084 if (r)
1085 return r;
1086
1087 return r;
1088}
1089
1090static int gmc_v7_0_hw_fini(void *handle)
1091{
1092 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1093
1094 amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1095 gmc_v7_0_gart_disable(adev);
1096
1097 return 0;
1098}
1099
1100static int gmc_v7_0_suspend(void *handle)
1101{
1102 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1103
1104 gmc_v7_0_hw_fini(adev);
1105
1106 return 0;
1107}
1108
1109static int gmc_v7_0_resume(void *handle)
1110{
1111 int r;
1112 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1113
1114 r = gmc_v7_0_hw_init(adev);
1115 if (r)
1116 return r;
1117
1118 amdgpu_vmid_reset_all(adev);
1119
1120 return 0;
1121}
1122
1123static bool gmc_v7_0_is_idle(void *handle)
1124{
1125 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1126 u32 tmp = RREG32(mmSRBM_STATUS);
1127
1128 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1129 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1130 return false;
1131
1132 return true;
1133}
1134
1135static int gmc_v7_0_wait_for_idle(void *handle)
1136{
1137 unsigned i;
1138 u32 tmp;
1139 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1140
1141 for (i = 0; i < adev->usec_timeout; i++) {
1142 /* read MC_STATUS */
1143 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1144 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1145 SRBM_STATUS__MCC_BUSY_MASK |
1146 SRBM_STATUS__MCD_BUSY_MASK |
1147 SRBM_STATUS__VMC_BUSY_MASK);
1148 if (!tmp)
1149 return 0;
1150 udelay(1);
1151 }
1152 return -ETIMEDOUT;
1153
1154}
1155
1156static int gmc_v7_0_soft_reset(void *handle)
1157{
1158 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1159 u32 srbm_soft_reset = 0;
1160 u32 tmp = RREG32(mmSRBM_STATUS);
1161
1162 if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1163 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1164 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1165
1166 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1167 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1168 if (!(adev->flags & AMD_IS_APU))
1169 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1170 SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1171 }
1172
1173 if (srbm_soft_reset) {
1174 gmc_v7_0_mc_stop(adev);
1175 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1176 dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1177 }
1178
1179
1180 tmp = RREG32(mmSRBM_SOFT_RESET);
1181 tmp |= srbm_soft_reset;
1182 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1183 WREG32(mmSRBM_SOFT_RESET, tmp);
1184 tmp = RREG32(mmSRBM_SOFT_RESET);
1185
1186 udelay(50);
1187
1188 tmp &= ~srbm_soft_reset;
1189 WREG32(mmSRBM_SOFT_RESET, tmp);
1190 tmp = RREG32(mmSRBM_SOFT_RESET);
1191
1192 /* Wait a little for things to settle down */
1193 udelay(50);
1194
1195 gmc_v7_0_mc_resume(adev);
1196 udelay(50);
1197 }
1198
1199 return 0;
1200}
1201
1202static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1203 struct amdgpu_irq_src *src,
1204 unsigned type,
1205 enum amdgpu_interrupt_state state)
1206{
1207 u32 tmp;
1208 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1209 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1210 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1211 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1212 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1213 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1214
1215 switch (state) {
1216 case AMDGPU_IRQ_STATE_DISABLE:
1217 /* system context */
1218 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1219 tmp &= ~bits;
1220 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1221 /* VMs */
1222 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1223 tmp &= ~bits;
1224 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1225 break;
1226 case AMDGPU_IRQ_STATE_ENABLE:
1227 /* system context */
1228 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1229 tmp |= bits;
1230 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1231 /* VMs */
1232 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1233 tmp |= bits;
1234 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1235 break;
1236 default:
1237 break;
1238 }
1239
1240 return 0;
1241}
1242
1243static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1244 struct amdgpu_irq_src *source,
1245 struct amdgpu_iv_entry *entry)
1246{
1247 u32 addr, status, mc_client, vmid;
1248
1249 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1250 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1251 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1252 /* reset addr and status */
1253 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1254
1255 if (!addr && !status)
1256 return 0;
1257
1258 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1259 gmc_v7_0_set_fault_enable_default(adev, false);
1260
1261 if (printk_ratelimit()) {
1262 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1263 entry->src_id, entry->src_data[0]);
1264 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
1265 addr);
1266 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1267 status);
1268 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1269 entry->pasid);
1270 }
1271
1272 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1273 VMID);
1274 if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1275 && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1276 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1277 u32 protections = REG_GET_FIELD(status,
1278 VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1279 PROTECTIONS);
1280
1281 info->vmid = vmid;
1282 info->mc_id = REG_GET_FIELD(status,
1283 VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1284 MEMORY_CLIENT_ID);
1285 info->status = status;
1286 info->page_addr = addr;
1287 info->prot_valid = protections & 0x7 ? true : false;
1288 info->prot_read = protections & 0x8 ? true : false;
1289 info->prot_write = protections & 0x10 ? true : false;
1290 info->prot_exec = protections & 0x20 ? true : false;
1291 mb();
1292 atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1293 }
1294
1295 return 0;
1296}
1297
1298static int gmc_v7_0_set_clockgating_state(void *handle,
1299 enum amd_clockgating_state state)
1300{
1301 bool gate = false;
1302 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1303
1304 if (state == AMD_CG_STATE_GATE)
1305 gate = true;
1306
1307 if (!(adev->flags & AMD_IS_APU)) {
1308 gmc_v7_0_enable_mc_mgcg(adev, gate);
1309 gmc_v7_0_enable_mc_ls(adev, gate);
1310 }
1311 gmc_v7_0_enable_bif_mgls(adev, gate);
1312 gmc_v7_0_enable_hdp_mgcg(adev, gate);
1313 gmc_v7_0_enable_hdp_ls(adev, gate);
1314
1315 return 0;
1316}
1317
1318static int gmc_v7_0_set_powergating_state(void *handle,
1319 enum amd_powergating_state state)
1320{
1321 return 0;
1322}
1323
1324static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1325 .name = "gmc_v7_0",
1326 .early_init = gmc_v7_0_early_init,
1327 .late_init = gmc_v7_0_late_init,
1328 .sw_init = gmc_v7_0_sw_init,
1329 .sw_fini = gmc_v7_0_sw_fini,
1330 .hw_init = gmc_v7_0_hw_init,
1331 .hw_fini = gmc_v7_0_hw_fini,
1332 .suspend = gmc_v7_0_suspend,
1333 .resume = gmc_v7_0_resume,
1334 .is_idle = gmc_v7_0_is_idle,
1335 .wait_for_idle = gmc_v7_0_wait_for_idle,
1336 .soft_reset = gmc_v7_0_soft_reset,
1337 .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1338 .set_powergating_state = gmc_v7_0_set_powergating_state,
1339};
1340
1341static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1342 .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1343 .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1344 .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1345 .set_prt = gmc_v7_0_set_prt,
1346 .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags,
1347 .get_vm_pde = gmc_v7_0_get_vm_pde
1348};
1349
1350static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1351 .set = gmc_v7_0_vm_fault_interrupt_state,
1352 .process = gmc_v7_0_process_interrupt,
1353};
1354
1355static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1356{
1357 adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1358}
1359
1360static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1361{
1362 adev->gmc.vm_fault.num_types = 1;
1363 adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1364}
1365
1366const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1367{
1368 .type = AMD_IP_BLOCK_TYPE_GMC,
1369 .major = 7,
1370 .minor = 0,
1371 .rev = 0,
1372 .funcs = &gmc_v7_0_ip_funcs,
1373};
1374
1375const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1376{
1377 .type = AMD_IP_BLOCK_TYPE_GMC,
1378 .major = 7,
1379 .minor = 4,
1380 .rev = 0,
1381 .funcs = &gmc_v7_0_ip_funcs,
1382};