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1/*
2 * Copyright 2019 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/delay.h>
25#include <linux/firmware.h>
26#include <linux/module.h>
27#include <linux/pci.h>
28
29#include "amdgpu.h"
30#include "amdgpu_ucode.h"
31#include "amdgpu_trace.h"
32
33#include "gc/gc_10_3_0_offset.h"
34#include "gc/gc_10_3_0_sh_mask.h"
35#include "ivsrcid/sdma0/irqsrcs_sdma0_5_0.h"
36#include "ivsrcid/sdma1/irqsrcs_sdma1_5_0.h"
37#include "ivsrcid/sdma2/irqsrcs_sdma2_5_0.h"
38#include "ivsrcid/sdma3/irqsrcs_sdma3_5_0.h"
39
40#include "soc15_common.h"
41#include "soc15.h"
42#include "navi10_sdma_pkt_open.h"
43#include "nbio_v2_3.h"
44#include "sdma_common.h"
45#include "sdma_v5_2.h"
46
47MODULE_FIRMWARE("amdgpu/sienna_cichlid_sdma.bin");
48MODULE_FIRMWARE("amdgpu/navy_flounder_sdma.bin");
49MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_sdma.bin");
50MODULE_FIRMWARE("amdgpu/beige_goby_sdma.bin");
51
52MODULE_FIRMWARE("amdgpu/vangogh_sdma.bin");
53MODULE_FIRMWARE("amdgpu/yellow_carp_sdma.bin");
54
55#define SDMA1_REG_OFFSET 0x600
56#define SDMA3_REG_OFFSET 0x400
57#define SDMA0_HYP_DEC_REG_START 0x5880
58#define SDMA0_HYP_DEC_REG_END 0x5893
59#define SDMA1_HYP_DEC_REG_OFFSET 0x20
60
61static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev);
62static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev);
63static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev);
64static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev);
65
66static u32 sdma_v5_2_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
67{
68 u32 base;
69
70 if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
71 internal_offset <= SDMA0_HYP_DEC_REG_END) {
72 base = adev->reg_offset[GC_HWIP][0][1];
73 if (instance != 0)
74 internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance;
75 } else {
76 if (instance < 2) {
77 base = adev->reg_offset[GC_HWIP][0][0];
78 if (instance == 1)
79 internal_offset += SDMA1_REG_OFFSET;
80 } else {
81 base = adev->reg_offset[GC_HWIP][0][2];
82 if (instance == 3)
83 internal_offset += SDMA3_REG_OFFSET;
84 }
85 }
86
87 return base + internal_offset;
88}
89
90static void sdma_v5_2_init_golden_registers(struct amdgpu_device *adev)
91{
92 switch (adev->asic_type) {
93 case CHIP_SIENNA_CICHLID:
94 case CHIP_NAVY_FLOUNDER:
95 case CHIP_VANGOGH:
96 case CHIP_DIMGREY_CAVEFISH:
97 case CHIP_BEIGE_GOBY:
98 case CHIP_YELLOW_CARP:
99 break;
100 default:
101 break;
102 }
103}
104
105static int sdma_v5_2_init_inst_ctx(struct amdgpu_sdma_instance *sdma_inst)
106{
107 int err = 0;
108 const struct sdma_firmware_header_v1_0 *hdr;
109
110 err = amdgpu_ucode_validate(sdma_inst->fw);
111 if (err)
112 return err;
113
114 hdr = (const struct sdma_firmware_header_v1_0 *)sdma_inst->fw->data;
115 sdma_inst->fw_version = le32_to_cpu(hdr->header.ucode_version);
116 sdma_inst->feature_version = le32_to_cpu(hdr->ucode_feature_version);
117
118 if (sdma_inst->feature_version >= 20)
119 sdma_inst->burst_nop = true;
120
121 return 0;
122}
123
124static void sdma_v5_2_destroy_inst_ctx(struct amdgpu_device *adev)
125{
126 release_firmware(adev->sdma.instance[0].fw);
127
128 memset((void *)adev->sdma.instance, 0,
129 sizeof(struct amdgpu_sdma_instance) * AMDGPU_MAX_SDMA_INSTANCES);
130}
131
132/**
133 * sdma_v5_2_init_microcode - load ucode images from disk
134 *
135 * @adev: amdgpu_device pointer
136 *
137 * Use the firmware interface to load the ucode images into
138 * the driver (not loaded into hw).
139 * Returns 0 on success, error on failure.
140 */
141
142// emulation only, won't work on real chip
143// navi10 real chip need to use PSP to load firmware
144static int sdma_v5_2_init_microcode(struct amdgpu_device *adev)
145{
146 const char *chip_name;
147 char fw_name[40];
148 int err = 0, i;
149 struct amdgpu_firmware_info *info = NULL;
150 const struct common_firmware_header *header = NULL;
151
152 DRM_DEBUG("\n");
153
154 switch (adev->asic_type) {
155 case CHIP_SIENNA_CICHLID:
156 chip_name = "sienna_cichlid";
157 break;
158 case CHIP_NAVY_FLOUNDER:
159 chip_name = "navy_flounder";
160 break;
161 case CHIP_VANGOGH:
162 chip_name = "vangogh";
163 break;
164 case CHIP_DIMGREY_CAVEFISH:
165 chip_name = "dimgrey_cavefish";
166 break;
167 case CHIP_BEIGE_GOBY:
168 chip_name = "beige_goby";
169 break;
170 case CHIP_YELLOW_CARP:
171 chip_name = "yellow_carp";
172 break;
173 default:
174 BUG();
175 }
176
177 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
178
179 err = request_firmware(&adev->sdma.instance[0].fw, fw_name, adev->dev);
180 if (err)
181 goto out;
182
183 err = sdma_v5_2_init_inst_ctx(&adev->sdma.instance[0]);
184 if (err)
185 goto out;
186
187 for (i = 1; i < adev->sdma.num_instances; i++)
188 memcpy((void *)&adev->sdma.instance[i],
189 (void *)&adev->sdma.instance[0],
190 sizeof(struct amdgpu_sdma_instance));
191
192 if (amdgpu_sriov_vf(adev) && (adev->asic_type == CHIP_SIENNA_CICHLID))
193 return 0;
194
195 DRM_DEBUG("psp_load == '%s'\n",
196 adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false");
197
198 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
199 for (i = 0; i < adev->sdma.num_instances; i++) {
200 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
201 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
202 info->fw = adev->sdma.instance[i].fw;
203 header = (const struct common_firmware_header *)info->fw->data;
204 adev->firmware.fw_size +=
205 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
206 }
207 }
208
209out:
210 if (err) {
211 DRM_ERROR("sdma_v5_2: Failed to load firmware \"%s\"\n", fw_name);
212 sdma_v5_2_destroy_inst_ctx(adev);
213 }
214 return err;
215}
216
217static unsigned sdma_v5_2_ring_init_cond_exec(struct amdgpu_ring *ring)
218{
219 unsigned ret;
220
221 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE));
222 amdgpu_ring_write(ring, lower_32_bits(ring->cond_exe_gpu_addr));
223 amdgpu_ring_write(ring, upper_32_bits(ring->cond_exe_gpu_addr));
224 amdgpu_ring_write(ring, 1);
225 ret = ring->wptr & ring->buf_mask;/* this is the offset we need patch later */
226 amdgpu_ring_write(ring, 0x55aa55aa);/* insert dummy here and patch it later */
227
228 return ret;
229}
230
231static void sdma_v5_2_ring_patch_cond_exec(struct amdgpu_ring *ring,
232 unsigned offset)
233{
234 unsigned cur;
235
236 BUG_ON(offset > ring->buf_mask);
237 BUG_ON(ring->ring[offset] != 0x55aa55aa);
238
239 cur = (ring->wptr - 1) & ring->buf_mask;
240 if (cur > offset)
241 ring->ring[offset] = cur - offset;
242 else
243 ring->ring[offset] = (ring->buf_mask + 1) - offset + cur;
244}
245
246/**
247 * sdma_v5_2_ring_get_rptr - get the current read pointer
248 *
249 * @ring: amdgpu ring pointer
250 *
251 * Get the current rptr from the hardware (NAVI10+).
252 */
253static uint64_t sdma_v5_2_ring_get_rptr(struct amdgpu_ring *ring)
254{
255 u64 *rptr;
256
257 /* XXX check if swapping is necessary on BE */
258 rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]);
259
260 DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
261 return ((*rptr) >> 2);
262}
263
264/**
265 * sdma_v5_2_ring_get_wptr - get the current write pointer
266 *
267 * @ring: amdgpu ring pointer
268 *
269 * Get the current wptr from the hardware (NAVI10+).
270 */
271static uint64_t sdma_v5_2_ring_get_wptr(struct amdgpu_ring *ring)
272{
273 struct amdgpu_device *adev = ring->adev;
274 u64 wptr;
275
276 if (ring->use_doorbell) {
277 /* XXX check if swapping is necessary on BE */
278 wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
279 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
280 } else {
281 wptr = RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
282 wptr = wptr << 32;
283 wptr |= RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
284 DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr);
285 }
286
287 return wptr >> 2;
288}
289
290/**
291 * sdma_v5_2_ring_set_wptr - commit the write pointer
292 *
293 * @ring: amdgpu ring pointer
294 *
295 * Write the wptr back to the hardware (NAVI10+).
296 */
297static void sdma_v5_2_ring_set_wptr(struct amdgpu_ring *ring)
298{
299 struct amdgpu_device *adev = ring->adev;
300
301 DRM_DEBUG("Setting write pointer\n");
302 if (ring->use_doorbell) {
303 DRM_DEBUG("Using doorbell -- "
304 "wptr_offs == 0x%08x "
305 "lower_32_bits(ring->wptr) << 2 == 0x%08x "
306 "upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
307 ring->wptr_offs,
308 lower_32_bits(ring->wptr << 2),
309 upper_32_bits(ring->wptr << 2));
310 /* XXX check if swapping is necessary on BE */
311 adev->wb.wb[ring->wptr_offs] = lower_32_bits(ring->wptr << 2);
312 adev->wb.wb[ring->wptr_offs + 1] = upper_32_bits(ring->wptr << 2);
313 DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
314 ring->doorbell_index, ring->wptr << 2);
315 WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
316 } else {
317 DRM_DEBUG("Not using doorbell -- "
318 "mmSDMA%i_GFX_RB_WPTR == 0x%08x "
319 "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
320 ring->me,
321 lower_32_bits(ring->wptr << 2),
322 ring->me,
323 upper_32_bits(ring->wptr << 2));
324 WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
325 lower_32_bits(ring->wptr << 2));
326 WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
327 upper_32_bits(ring->wptr << 2));
328 }
329}
330
331static void sdma_v5_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
332{
333 struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
334 int i;
335
336 for (i = 0; i < count; i++)
337 if (sdma && sdma->burst_nop && (i == 0))
338 amdgpu_ring_write(ring, ring->funcs->nop |
339 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
340 else
341 amdgpu_ring_write(ring, ring->funcs->nop);
342}
343
344/**
345 * sdma_v5_2_ring_emit_ib - Schedule an IB on the DMA engine
346 *
347 * @ring: amdgpu ring pointer
348 * @job: job to retrieve vmid from
349 * @ib: IB object to schedule
350 * @flags: unused
351 *
352 * Schedule an IB in the DMA ring.
353 */
354static void sdma_v5_2_ring_emit_ib(struct amdgpu_ring *ring,
355 struct amdgpu_job *job,
356 struct amdgpu_ib *ib,
357 uint32_t flags)
358{
359 unsigned vmid = AMDGPU_JOB_GET_VMID(job);
360 uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
361
362 /* An IB packet must end on a 8 DW boundary--the next dword
363 * must be on a 8-dword boundary. Our IB packet below is 6
364 * dwords long, thus add x number of NOPs, such that, in
365 * modular arithmetic,
366 * wptr + 6 + x = 8k, k >= 0, which in C is,
367 * (wptr + 6 + x) % 8 = 0.
368 * The expression below, is a solution of x.
369 */
370 sdma_v5_2_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
371
372 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
373 SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
374 /* base must be 32 byte aligned */
375 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
376 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
377 amdgpu_ring_write(ring, ib->length_dw);
378 amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
379 amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
380}
381
382/**
383 * sdma_v5_2_ring_emit_mem_sync - flush the IB by graphics cache rinse
384 *
385 * @ring: amdgpu ring pointer
386 * @job: job to retrieve vmid from
387 * @ib: IB object to schedule
388 *
389 * flush the IB by graphics cache rinse.
390 */
391static void sdma_v5_2_ring_emit_mem_sync(struct amdgpu_ring *ring)
392{
393 uint32_t gcr_cntl =
394 SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB | SDMA_GCR_GLM_INV |
395 SDMA_GCR_GL1_INV | SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
396 SDMA_GCR_GLI_INV(1);
397
398 /* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
399 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_GCR_REQ));
400 amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
401 amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
402 SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
403 amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
404 SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
405 amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
406 SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
407}
408
409/**
410 * sdma_v5_2_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
411 *
412 * @ring: amdgpu ring pointer
413 *
414 * Emit an hdp flush packet on the requested DMA ring.
415 */
416static void sdma_v5_2_ring_emit_hdp_flush(struct amdgpu_ring *ring)
417{
418 struct amdgpu_device *adev = ring->adev;
419 u32 ref_and_mask = 0;
420 const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
421
422 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
423
424 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
425 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
426 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
427 amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
428 amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
429 amdgpu_ring_write(ring, ref_and_mask); /* reference */
430 amdgpu_ring_write(ring, ref_and_mask); /* mask */
431 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
432 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
433}
434
435/**
436 * sdma_v5_2_ring_emit_fence - emit a fence on the DMA ring
437 *
438 * @ring: amdgpu ring pointer
439 * @addr: address
440 * @seq: sequence number
441 * @flags: fence related flags
442 *
443 * Add a DMA fence packet to the ring to write
444 * the fence seq number and DMA trap packet to generate
445 * an interrupt if needed.
446 */
447static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
448 unsigned flags)
449{
450 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
451 /* write the fence */
452 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
453 SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
454 /* zero in first two bits */
455 BUG_ON(addr & 0x3);
456 amdgpu_ring_write(ring, lower_32_bits(addr));
457 amdgpu_ring_write(ring, upper_32_bits(addr));
458 amdgpu_ring_write(ring, lower_32_bits(seq));
459
460 /* optionally write high bits as well */
461 if (write64bit) {
462 addr += 4;
463 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
464 SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
465 /* zero in first two bits */
466 BUG_ON(addr & 0x3);
467 amdgpu_ring_write(ring, lower_32_bits(addr));
468 amdgpu_ring_write(ring, upper_32_bits(addr));
469 amdgpu_ring_write(ring, upper_32_bits(seq));
470 }
471
472 if (flags & AMDGPU_FENCE_FLAG_INT) {
473 /* generate an interrupt */
474 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
475 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
476 }
477}
478
479
480/**
481 * sdma_v5_2_gfx_stop - stop the gfx async dma engines
482 *
483 * @adev: amdgpu_device pointer
484 *
485 * Stop the gfx async dma ring buffers.
486 */
487static void sdma_v5_2_gfx_stop(struct amdgpu_device *adev)
488{
489 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
490 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
491 struct amdgpu_ring *sdma2 = &adev->sdma.instance[2].ring;
492 struct amdgpu_ring *sdma3 = &adev->sdma.instance[3].ring;
493 u32 rb_cntl, ib_cntl;
494 int i;
495
496 if ((adev->mman.buffer_funcs_ring == sdma0) ||
497 (adev->mman.buffer_funcs_ring == sdma1) ||
498 (adev->mman.buffer_funcs_ring == sdma2) ||
499 (adev->mman.buffer_funcs_ring == sdma3))
500 amdgpu_ttm_set_buffer_funcs_status(adev, false);
501
502 for (i = 0; i < adev->sdma.num_instances; i++) {
503 rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
504 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
505 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
506 ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
507 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
508 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
509 }
510}
511
512/**
513 * sdma_v5_2_rlc_stop - stop the compute async dma engines
514 *
515 * @adev: amdgpu_device pointer
516 *
517 * Stop the compute async dma queues.
518 */
519static void sdma_v5_2_rlc_stop(struct amdgpu_device *adev)
520{
521 /* XXX todo */
522}
523
524/**
525 * sdma_v5_2_ctx_switch_enable - stop the async dma engines context switch
526 *
527 * @adev: amdgpu_device pointer
528 * @enable: enable/disable the DMA MEs context switch.
529 *
530 * Halt or unhalt the async dma engines context switch.
531 */
532static void sdma_v5_2_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
533{
534 u32 f32_cntl, phase_quantum = 0;
535 int i;
536
537 if (amdgpu_sdma_phase_quantum) {
538 unsigned value = amdgpu_sdma_phase_quantum;
539 unsigned unit = 0;
540
541 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
542 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
543 value = (value + 1) >> 1;
544 unit++;
545 }
546 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
547 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
548 value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
549 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
550 unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
551 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
552 WARN_ONCE(1,
553 "clamping sdma_phase_quantum to %uK clock cycles\n",
554 value << unit);
555 }
556 phase_quantum =
557 value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
558 unit << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
559 }
560
561 for (i = 0; i < adev->sdma.num_instances; i++) {
562 f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
563 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
564 AUTO_CTXSW_ENABLE, enable ? 1 : 0);
565 if (enable && amdgpu_sdma_phase_quantum) {
566 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
567 phase_quantum);
568 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
569 phase_quantum);
570 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
571 phase_quantum);
572 }
573 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
574 }
575
576}
577
578/**
579 * sdma_v5_2_enable - stop the async dma engines
580 *
581 * @adev: amdgpu_device pointer
582 * @enable: enable/disable the DMA MEs.
583 *
584 * Halt or unhalt the async dma engines.
585 */
586static void sdma_v5_2_enable(struct amdgpu_device *adev, bool enable)
587{
588 u32 f32_cntl;
589 int i;
590
591 if (!enable) {
592 sdma_v5_2_gfx_stop(adev);
593 sdma_v5_2_rlc_stop(adev);
594 }
595
596 for (i = 0; i < adev->sdma.num_instances; i++) {
597 f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
598 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
599 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
600 }
601}
602
603/**
604 * sdma_v5_2_gfx_resume - setup and start the async dma engines
605 *
606 * @adev: amdgpu_device pointer
607 *
608 * Set up the gfx DMA ring buffers and enable them.
609 * Returns 0 for success, error for failure.
610 */
611static int sdma_v5_2_gfx_resume(struct amdgpu_device *adev)
612{
613 struct amdgpu_ring *ring;
614 u32 rb_cntl, ib_cntl;
615 u32 rb_bufsz;
616 u32 wb_offset;
617 u32 doorbell;
618 u32 doorbell_offset;
619 u32 temp;
620 u32 wptr_poll_cntl;
621 u64 wptr_gpu_addr;
622 int i, r;
623
624 for (i = 0; i < adev->sdma.num_instances; i++) {
625 ring = &adev->sdma.instance[i].ring;
626 wb_offset = (ring->rptr_offs * 4);
627
628 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
629
630 /* Set ring buffer size in dwords */
631 rb_bufsz = order_base_2(ring->ring_size / 4);
632 rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
633 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
634#ifdef __BIG_ENDIAN
635 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
636 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
637 RPTR_WRITEBACK_SWAP_ENABLE, 1);
638#endif
639 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
640
641 /* Initialize the ring buffer's read and write pointers */
642 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
643 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
644 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
645 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
646
647 /* setup the wptr shadow polling */
648 wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
649 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
650 lower_32_bits(wptr_gpu_addr));
651 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
652 upper_32_bits(wptr_gpu_addr));
653 wptr_poll_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i,
654 mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
655 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
656 SDMA0_GFX_RB_WPTR_POLL_CNTL,
657 F32_POLL_ENABLE, 1);
658 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
659 wptr_poll_cntl);
660
661 /* set the wb address whether it's enabled or not */
662 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
663 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
664 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
665 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
666
667 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
668
669 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
670 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
671
672 ring->wptr = 0;
673
674 /* before programing wptr to a less value, need set minor_ptr_update first */
675 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
676
677 if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
678 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2);
679 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
680 }
681
682 doorbell = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
683 doorbell_offset = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
684
685 if (ring->use_doorbell) {
686 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
687 doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
688 OFFSET, ring->doorbell_index);
689 } else {
690 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
691 }
692 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
693 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
694
695 adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
696 ring->doorbell_index,
697 adev->doorbell_index.sdma_doorbell_range);
698
699 if (amdgpu_sriov_vf(adev))
700 sdma_v5_2_ring_set_wptr(ring);
701
702 /* set minor_ptr_update to 0 after wptr programed */
703 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
704
705 /* set utc l1 enable flag always to 1 */
706 temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
707 temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
708
709 /* enable MCBP */
710 temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1);
711 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
712
713 /* Set up RESP_MODE to non-copy addresses */
714 temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));
715 temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
716 temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
717 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);
718
719 /* program default cache read and write policy */
720 temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE));
721 /* clean read policy and write policy bits */
722 temp &= 0xFF0FFF;
723 temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
724 (CACHE_WRITE_POLICY_L2__DEFAULT << 14) |
725 SDMA0_UTCL1_PAGE__LLC_NOALLOC_MASK);
726 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp);
727
728 if (!amdgpu_sriov_vf(adev)) {
729 /* unhalt engine */
730 temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
731 temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
732 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
733 }
734
735 /* enable DMA RB */
736 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
737 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
738
739 ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
740 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
741#ifdef __BIG_ENDIAN
742 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
743#endif
744 /* enable DMA IBs */
745 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
746
747 ring->sched.ready = true;
748
749 if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
750 sdma_v5_2_ctx_switch_enable(adev, true);
751 sdma_v5_2_enable(adev, true);
752 }
753
754 r = amdgpu_ring_test_ring(ring);
755 if (r) {
756 ring->sched.ready = false;
757 return r;
758 }
759
760 if (adev->mman.buffer_funcs_ring == ring)
761 amdgpu_ttm_set_buffer_funcs_status(adev, true);
762 }
763
764 return 0;
765}
766
767/**
768 * sdma_v5_2_rlc_resume - setup and start the async dma engines
769 *
770 * @adev: amdgpu_device pointer
771 *
772 * Set up the compute DMA queues and enable them.
773 * Returns 0 for success, error for failure.
774 */
775static int sdma_v5_2_rlc_resume(struct amdgpu_device *adev)
776{
777 return 0;
778}
779
780/**
781 * sdma_v5_2_load_microcode - load the sDMA ME ucode
782 *
783 * @adev: amdgpu_device pointer
784 *
785 * Loads the sDMA0/1/2/3 ucode.
786 * Returns 0 for success, -EINVAL if the ucode is not available.
787 */
788static int sdma_v5_2_load_microcode(struct amdgpu_device *adev)
789{
790 const struct sdma_firmware_header_v1_0 *hdr;
791 const __le32 *fw_data;
792 u32 fw_size;
793 int i, j;
794
795 /* halt the MEs */
796 sdma_v5_2_enable(adev, false);
797
798 for (i = 0; i < adev->sdma.num_instances; i++) {
799 if (!adev->sdma.instance[i].fw)
800 return -EINVAL;
801
802 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
803 amdgpu_ucode_print_sdma_hdr(&hdr->header);
804 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
805
806 fw_data = (const __le32 *)
807 (adev->sdma.instance[i].fw->data +
808 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
809
810 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
811
812 for (j = 0; j < fw_size; j++) {
813 if (amdgpu_emu_mode == 1 && j % 500 == 0)
814 msleep(1);
815 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
816 }
817
818 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
819 }
820
821 return 0;
822}
823
824static int sdma_v5_2_soft_reset(void *handle)
825{
826 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
827 u32 grbm_soft_reset;
828 u32 tmp;
829 int i;
830
831 for (i = 0; i < adev->sdma.num_instances; i++) {
832 grbm_soft_reset = REG_SET_FIELD(0,
833 GRBM_SOFT_RESET, SOFT_RESET_SDMA0,
834 1);
835 grbm_soft_reset <<= i;
836
837 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
838 tmp |= grbm_soft_reset;
839 DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp);
840 WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
841 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
842
843 udelay(50);
844
845 tmp &= ~grbm_soft_reset;
846 WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
847 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
848
849 udelay(50);
850 }
851
852 return 0;
853}
854
855/**
856 * sdma_v5_2_start - setup and start the async dma engines
857 *
858 * @adev: amdgpu_device pointer
859 *
860 * Set up the DMA engines and enable them.
861 * Returns 0 for success, error for failure.
862 */
863static int sdma_v5_2_start(struct amdgpu_device *adev)
864{
865 int r = 0;
866
867 if (amdgpu_sriov_vf(adev)) {
868 sdma_v5_2_ctx_switch_enable(adev, false);
869 sdma_v5_2_enable(adev, false);
870
871 /* set RB registers */
872 r = sdma_v5_2_gfx_resume(adev);
873 return r;
874 }
875
876 if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
877 r = sdma_v5_2_load_microcode(adev);
878 if (r)
879 return r;
880
881 /* The value of mmSDMA_F32_CNTL is invalid the moment after loading fw */
882 if (amdgpu_emu_mode == 1)
883 msleep(1000);
884 }
885
886 /* TODO: check whether can submit a doorbell request to raise
887 * a doorbell fence to exit gfxoff.
888 */
889 if (adev->in_s0ix)
890 amdgpu_gfx_off_ctrl(adev, false);
891
892 sdma_v5_2_soft_reset(adev);
893 /* unhalt the MEs */
894 sdma_v5_2_enable(adev, true);
895 /* enable sdma ring preemption */
896 sdma_v5_2_ctx_switch_enable(adev, true);
897
898 /* start the gfx rings and rlc compute queues */
899 r = sdma_v5_2_gfx_resume(adev);
900 if (adev->in_s0ix)
901 amdgpu_gfx_off_ctrl(adev, true);
902 if (r)
903 return r;
904 r = sdma_v5_2_rlc_resume(adev);
905
906 return r;
907}
908
909/**
910 * sdma_v5_2_ring_test_ring - simple async dma engine test
911 *
912 * @ring: amdgpu_ring structure holding ring information
913 *
914 * Test the DMA engine by writing using it to write an
915 * value to memory.
916 * Returns 0 for success, error for failure.
917 */
918static int sdma_v5_2_ring_test_ring(struct amdgpu_ring *ring)
919{
920 struct amdgpu_device *adev = ring->adev;
921 unsigned i;
922 unsigned index;
923 int r;
924 u32 tmp;
925 u64 gpu_addr;
926
927 r = amdgpu_device_wb_get(adev, &index);
928 if (r) {
929 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
930 return r;
931 }
932
933 gpu_addr = adev->wb.gpu_addr + (index * 4);
934 tmp = 0xCAFEDEAD;
935 adev->wb.wb[index] = cpu_to_le32(tmp);
936
937 r = amdgpu_ring_alloc(ring, 5);
938 if (r) {
939 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
940 amdgpu_device_wb_free(adev, index);
941 return r;
942 }
943
944 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
945 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
946 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
947 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
948 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
949 amdgpu_ring_write(ring, 0xDEADBEEF);
950 amdgpu_ring_commit(ring);
951
952 for (i = 0; i < adev->usec_timeout; i++) {
953 tmp = le32_to_cpu(adev->wb.wb[index]);
954 if (tmp == 0xDEADBEEF)
955 break;
956 if (amdgpu_emu_mode == 1)
957 msleep(1);
958 else
959 udelay(1);
960 }
961
962 if (i >= adev->usec_timeout)
963 r = -ETIMEDOUT;
964
965 amdgpu_device_wb_free(adev, index);
966
967 return r;
968}
969
970/**
971 * sdma_v5_2_ring_test_ib - test an IB on the DMA engine
972 *
973 * @ring: amdgpu_ring structure holding ring information
974 * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
975 *
976 * Test a simple IB in the DMA ring.
977 * Returns 0 on success, error on failure.
978 */
979static int sdma_v5_2_ring_test_ib(struct amdgpu_ring *ring, long timeout)
980{
981 struct amdgpu_device *adev = ring->adev;
982 struct amdgpu_ib ib;
983 struct dma_fence *f = NULL;
984 unsigned index;
985 long r;
986 u32 tmp = 0;
987 u64 gpu_addr;
988
989 r = amdgpu_device_wb_get(adev, &index);
990 if (r) {
991 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
992 return r;
993 }
994
995 gpu_addr = adev->wb.gpu_addr + (index * 4);
996 tmp = 0xCAFEDEAD;
997 adev->wb.wb[index] = cpu_to_le32(tmp);
998 memset(&ib, 0, sizeof(ib));
999 r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib);
1000 if (r) {
1001 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
1002 goto err0;
1003 }
1004
1005 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1006 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1007 ib.ptr[1] = lower_32_bits(gpu_addr);
1008 ib.ptr[2] = upper_32_bits(gpu_addr);
1009 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
1010 ib.ptr[4] = 0xDEADBEEF;
1011 ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1012 ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1013 ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1014 ib.length_dw = 8;
1015
1016 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
1017 if (r)
1018 goto err1;
1019
1020 r = dma_fence_wait_timeout(f, false, timeout);
1021 if (r == 0) {
1022 DRM_ERROR("amdgpu: IB test timed out\n");
1023 r = -ETIMEDOUT;
1024 goto err1;
1025 } else if (r < 0) {
1026 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1027 goto err1;
1028 }
1029 tmp = le32_to_cpu(adev->wb.wb[index]);
1030 if (tmp == 0xDEADBEEF)
1031 r = 0;
1032 else
1033 r = -EINVAL;
1034
1035err1:
1036 amdgpu_ib_free(adev, &ib, NULL);
1037 dma_fence_put(f);
1038err0:
1039 amdgpu_device_wb_free(adev, index);
1040 return r;
1041}
1042
1043
1044/**
1045 * sdma_v5_2_vm_copy_pte - update PTEs by copying them from the GART
1046 *
1047 * @ib: indirect buffer to fill with commands
1048 * @pe: addr of the page entry
1049 * @src: src addr to copy from
1050 * @count: number of page entries to update
1051 *
1052 * Update PTEs by copying them from the GART using sDMA.
1053 */
1054static void sdma_v5_2_vm_copy_pte(struct amdgpu_ib *ib,
1055 uint64_t pe, uint64_t src,
1056 unsigned count)
1057{
1058 unsigned bytes = count * 8;
1059
1060 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1061 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1062 ib->ptr[ib->length_dw++] = bytes - 1;
1063 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1064 ib->ptr[ib->length_dw++] = lower_32_bits(src);
1065 ib->ptr[ib->length_dw++] = upper_32_bits(src);
1066 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1067 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1068
1069}
1070
1071/**
1072 * sdma_v5_2_vm_write_pte - update PTEs by writing them manually
1073 *
1074 * @ib: indirect buffer to fill with commands
1075 * @pe: addr of the page entry
1076 * @value: dst addr to write into pe
1077 * @count: number of page entries to update
1078 * @incr: increase next addr by incr bytes
1079 *
1080 * Update PTEs by writing them manually using sDMA.
1081 */
1082static void sdma_v5_2_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1083 uint64_t value, unsigned count,
1084 uint32_t incr)
1085{
1086 unsigned ndw = count * 2;
1087
1088 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1089 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1090 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1091 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1092 ib->ptr[ib->length_dw++] = ndw - 1;
1093 for (; ndw > 0; ndw -= 2) {
1094 ib->ptr[ib->length_dw++] = lower_32_bits(value);
1095 ib->ptr[ib->length_dw++] = upper_32_bits(value);
1096 value += incr;
1097 }
1098}
1099
1100/**
1101 * sdma_v5_2_vm_set_pte_pde - update the page tables using sDMA
1102 *
1103 * @ib: indirect buffer to fill with commands
1104 * @pe: addr of the page entry
1105 * @addr: dst addr to write into pe
1106 * @count: number of page entries to update
1107 * @incr: increase next addr by incr bytes
1108 * @flags: access flags
1109 *
1110 * Update the page tables using sDMA.
1111 */
1112static void sdma_v5_2_vm_set_pte_pde(struct amdgpu_ib *ib,
1113 uint64_t pe,
1114 uint64_t addr, unsigned count,
1115 uint32_t incr, uint64_t flags)
1116{
1117 /* for physically contiguous pages (vram) */
1118 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1119 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1120 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1121 ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1122 ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1123 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1124 ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1125 ib->ptr[ib->length_dw++] = incr; /* increment size */
1126 ib->ptr[ib->length_dw++] = 0;
1127 ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1128}
1129
1130/**
1131 * sdma_v5_2_ring_pad_ib - pad the IB
1132 *
1133 * @ib: indirect buffer to fill with padding
1134 * @ring: amdgpu_ring structure holding ring information
1135 *
1136 * Pad the IB with NOPs to a boundary multiple of 8.
1137 */
1138static void sdma_v5_2_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1139{
1140 struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1141 u32 pad_count;
1142 int i;
1143
1144 pad_count = (-ib->length_dw) & 0x7;
1145 for (i = 0; i < pad_count; i++)
1146 if (sdma && sdma->burst_nop && (i == 0))
1147 ib->ptr[ib->length_dw++] =
1148 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1149 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1150 else
1151 ib->ptr[ib->length_dw++] =
1152 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1153}
1154
1155
1156/**
1157 * sdma_v5_2_ring_emit_pipeline_sync - sync the pipeline
1158 *
1159 * @ring: amdgpu_ring pointer
1160 *
1161 * Make sure all previous operations are completed (CIK).
1162 */
1163static void sdma_v5_2_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1164{
1165 uint32_t seq = ring->fence_drv.sync_seq;
1166 uint64_t addr = ring->fence_drv.gpu_addr;
1167
1168 /* wait for idle */
1169 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1170 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1171 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1172 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1173 amdgpu_ring_write(ring, addr & 0xfffffffc);
1174 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1175 amdgpu_ring_write(ring, seq); /* reference */
1176 amdgpu_ring_write(ring, 0xffffffff); /* mask */
1177 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1178 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1179}
1180
1181
1182/**
1183 * sdma_v5_2_ring_emit_vm_flush - vm flush using sDMA
1184 *
1185 * @ring: amdgpu_ring pointer
1186 * @vmid: vmid number to use
1187 * @pd_addr: address
1188 *
1189 * Update the page table base and flush the VM TLB
1190 * using sDMA.
1191 */
1192static void sdma_v5_2_ring_emit_vm_flush(struct amdgpu_ring *ring,
1193 unsigned vmid, uint64_t pd_addr)
1194{
1195 amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1196}
1197
1198static void sdma_v5_2_ring_emit_wreg(struct amdgpu_ring *ring,
1199 uint32_t reg, uint32_t val)
1200{
1201 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1202 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1203 amdgpu_ring_write(ring, reg);
1204 amdgpu_ring_write(ring, val);
1205}
1206
1207static void sdma_v5_2_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1208 uint32_t val, uint32_t mask)
1209{
1210 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1211 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1212 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1213 amdgpu_ring_write(ring, reg << 2);
1214 amdgpu_ring_write(ring, 0);
1215 amdgpu_ring_write(ring, val); /* reference */
1216 amdgpu_ring_write(ring, mask); /* mask */
1217 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1218 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1219}
1220
1221static void sdma_v5_2_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1222 uint32_t reg0, uint32_t reg1,
1223 uint32_t ref, uint32_t mask)
1224{
1225 amdgpu_ring_emit_wreg(ring, reg0, ref);
1226 /* wait for a cycle to reset vm_inv_eng*_ack */
1227 amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1228 amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1229}
1230
1231static int sdma_v5_2_early_init(void *handle)
1232{
1233 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1234
1235 switch (adev->asic_type) {
1236 case CHIP_SIENNA_CICHLID:
1237 adev->sdma.num_instances = 4;
1238 break;
1239 case CHIP_NAVY_FLOUNDER:
1240 case CHIP_DIMGREY_CAVEFISH:
1241 adev->sdma.num_instances = 2;
1242 break;
1243 case CHIP_VANGOGH:
1244 case CHIP_BEIGE_GOBY:
1245 case CHIP_YELLOW_CARP:
1246 adev->sdma.num_instances = 1;
1247 break;
1248 default:
1249 break;
1250 }
1251
1252 sdma_v5_2_set_ring_funcs(adev);
1253 sdma_v5_2_set_buffer_funcs(adev);
1254 sdma_v5_2_set_vm_pte_funcs(adev);
1255 sdma_v5_2_set_irq_funcs(adev);
1256
1257 return 0;
1258}
1259
1260static unsigned sdma_v5_2_seq_to_irq_id(int seq_num)
1261{
1262 switch (seq_num) {
1263 case 0:
1264 return SOC15_IH_CLIENTID_SDMA0;
1265 case 1:
1266 return SOC15_IH_CLIENTID_SDMA1;
1267 case 2:
1268 return SOC15_IH_CLIENTID_SDMA2;
1269 case 3:
1270 return SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid;
1271 default:
1272 break;
1273 }
1274 return -EINVAL;
1275}
1276
1277static unsigned sdma_v5_2_seq_to_trap_id(int seq_num)
1278{
1279 switch (seq_num) {
1280 case 0:
1281 return SDMA0_5_0__SRCID__SDMA_TRAP;
1282 case 1:
1283 return SDMA1_5_0__SRCID__SDMA_TRAP;
1284 case 2:
1285 return SDMA2_5_0__SRCID__SDMA_TRAP;
1286 case 3:
1287 return SDMA3_5_0__SRCID__SDMA_TRAP;
1288 default:
1289 break;
1290 }
1291 return -EINVAL;
1292}
1293
1294static int sdma_v5_2_sw_init(void *handle)
1295{
1296 struct amdgpu_ring *ring;
1297 int r, i;
1298 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1299
1300 /* SDMA trap event */
1301 for (i = 0; i < adev->sdma.num_instances; i++) {
1302 r = amdgpu_irq_add_id(adev, sdma_v5_2_seq_to_irq_id(i),
1303 sdma_v5_2_seq_to_trap_id(i),
1304 &adev->sdma.trap_irq);
1305 if (r)
1306 return r;
1307 }
1308
1309 r = sdma_v5_2_init_microcode(adev);
1310 if (r) {
1311 DRM_ERROR("Failed to load sdma firmware!\n");
1312 return r;
1313 }
1314
1315 for (i = 0; i < adev->sdma.num_instances; i++) {
1316 ring = &adev->sdma.instance[i].ring;
1317 ring->ring_obj = NULL;
1318 ring->use_doorbell = true;
1319 ring->me = i;
1320
1321 DRM_INFO("use_doorbell being set to: [%s]\n",
1322 ring->use_doorbell?"true":"false");
1323
1324 ring->doorbell_index =
1325 (adev->doorbell_index.sdma_engine[i] << 1); //get DWORD offset
1326
1327 sprintf(ring->name, "sdma%d", i);
1328 r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
1329 AMDGPU_SDMA_IRQ_INSTANCE0 + i,
1330 AMDGPU_RING_PRIO_DEFAULT, NULL);
1331 if (r)
1332 return r;
1333 }
1334
1335 return r;
1336}
1337
1338static int sdma_v5_2_sw_fini(void *handle)
1339{
1340 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1341 int i;
1342
1343 for (i = 0; i < adev->sdma.num_instances; i++)
1344 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1345
1346 sdma_v5_2_destroy_inst_ctx(adev);
1347
1348 return 0;
1349}
1350
1351static int sdma_v5_2_hw_init(void *handle)
1352{
1353 int r;
1354 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1355
1356 sdma_v5_2_init_golden_registers(adev);
1357
1358 r = sdma_v5_2_start(adev);
1359
1360 return r;
1361}
1362
1363static int sdma_v5_2_hw_fini(void *handle)
1364{
1365 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1366
1367 if (amdgpu_sriov_vf(adev))
1368 return 0;
1369
1370 sdma_v5_2_ctx_switch_enable(adev, false);
1371 sdma_v5_2_enable(adev, false);
1372
1373 return 0;
1374}
1375
1376static int sdma_v5_2_suspend(void *handle)
1377{
1378 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1379
1380 return sdma_v5_2_hw_fini(adev);
1381}
1382
1383static int sdma_v5_2_resume(void *handle)
1384{
1385 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1386
1387 return sdma_v5_2_hw_init(adev);
1388}
1389
1390static bool sdma_v5_2_is_idle(void *handle)
1391{
1392 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1393 u32 i;
1394
1395 for (i = 0; i < adev->sdma.num_instances; i++) {
1396 u32 tmp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1397
1398 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1399 return false;
1400 }
1401
1402 return true;
1403}
1404
1405static int sdma_v5_2_wait_for_idle(void *handle)
1406{
1407 unsigned i;
1408 u32 sdma0, sdma1, sdma2, sdma3;
1409 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1410
1411 for (i = 0; i < adev->usec_timeout; i++) {
1412 sdma0 = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1413 sdma1 = RREG32(sdma_v5_2_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1414 sdma2 = RREG32(sdma_v5_2_get_reg_offset(adev, 2, mmSDMA0_STATUS_REG));
1415 sdma3 = RREG32(sdma_v5_2_get_reg_offset(adev, 3, mmSDMA0_STATUS_REG));
1416
1417 if (sdma0 & sdma1 & sdma2 & sdma3 & SDMA0_STATUS_REG__IDLE_MASK)
1418 return 0;
1419 udelay(1);
1420 }
1421 return -ETIMEDOUT;
1422}
1423
1424static int sdma_v5_2_ring_preempt_ib(struct amdgpu_ring *ring)
1425{
1426 int i, r = 0;
1427 struct amdgpu_device *adev = ring->adev;
1428 u32 index = 0;
1429 u64 sdma_gfx_preempt;
1430
1431 amdgpu_sdma_get_index_from_ring(ring, &index);
1432 sdma_gfx_preempt =
1433 sdma_v5_2_get_reg_offset(adev, index, mmSDMA0_GFX_PREEMPT);
1434
1435 /* assert preemption condition */
1436 amdgpu_ring_set_preempt_cond_exec(ring, false);
1437
1438 /* emit the trailing fence */
1439 ring->trail_seq += 1;
1440 amdgpu_ring_alloc(ring, 10);
1441 sdma_v5_2_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1442 ring->trail_seq, 0);
1443 amdgpu_ring_commit(ring);
1444
1445 /* assert IB preemption */
1446 WREG32(sdma_gfx_preempt, 1);
1447
1448 /* poll the trailing fence */
1449 for (i = 0; i < adev->usec_timeout; i++) {
1450 if (ring->trail_seq ==
1451 le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1452 break;
1453 udelay(1);
1454 }
1455
1456 if (i >= adev->usec_timeout) {
1457 r = -EINVAL;
1458 DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1459 }
1460
1461 /* deassert IB preemption */
1462 WREG32(sdma_gfx_preempt, 0);
1463
1464 /* deassert the preemption condition */
1465 amdgpu_ring_set_preempt_cond_exec(ring, true);
1466 return r;
1467}
1468
1469static int sdma_v5_2_set_trap_irq_state(struct amdgpu_device *adev,
1470 struct amdgpu_irq_src *source,
1471 unsigned type,
1472 enum amdgpu_interrupt_state state)
1473{
1474 u32 sdma_cntl;
1475
1476 u32 reg_offset = sdma_v5_2_get_reg_offset(adev, type, mmSDMA0_CNTL);
1477
1478 sdma_cntl = RREG32(reg_offset);
1479 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1480 state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1481 WREG32(reg_offset, sdma_cntl);
1482
1483 return 0;
1484}
1485
1486static int sdma_v5_2_process_trap_irq(struct amdgpu_device *adev,
1487 struct amdgpu_irq_src *source,
1488 struct amdgpu_iv_entry *entry)
1489{
1490 DRM_DEBUG("IH: SDMA trap\n");
1491 switch (entry->client_id) {
1492 case SOC15_IH_CLIENTID_SDMA0:
1493 switch (entry->ring_id) {
1494 case 0:
1495 amdgpu_fence_process(&adev->sdma.instance[0].ring);
1496 break;
1497 case 1:
1498 /* XXX compute */
1499 break;
1500 case 2:
1501 /* XXX compute */
1502 break;
1503 case 3:
1504 /* XXX page queue*/
1505 break;
1506 }
1507 break;
1508 case SOC15_IH_CLIENTID_SDMA1:
1509 switch (entry->ring_id) {
1510 case 0:
1511 amdgpu_fence_process(&adev->sdma.instance[1].ring);
1512 break;
1513 case 1:
1514 /* XXX compute */
1515 break;
1516 case 2:
1517 /* XXX compute */
1518 break;
1519 case 3:
1520 /* XXX page queue*/
1521 break;
1522 }
1523 break;
1524 case SOC15_IH_CLIENTID_SDMA2:
1525 switch (entry->ring_id) {
1526 case 0:
1527 amdgpu_fence_process(&adev->sdma.instance[2].ring);
1528 break;
1529 case 1:
1530 /* XXX compute */
1531 break;
1532 case 2:
1533 /* XXX compute */
1534 break;
1535 case 3:
1536 /* XXX page queue*/
1537 break;
1538 }
1539 break;
1540 case SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid:
1541 switch (entry->ring_id) {
1542 case 0:
1543 amdgpu_fence_process(&adev->sdma.instance[3].ring);
1544 break;
1545 case 1:
1546 /* XXX compute */
1547 break;
1548 case 2:
1549 /* XXX compute */
1550 break;
1551 case 3:
1552 /* XXX page queue*/
1553 break;
1554 }
1555 break;
1556 }
1557 return 0;
1558}
1559
1560static int sdma_v5_2_process_illegal_inst_irq(struct amdgpu_device *adev,
1561 struct amdgpu_irq_src *source,
1562 struct amdgpu_iv_entry *entry)
1563{
1564 return 0;
1565}
1566
1567static void sdma_v5_2_update_medium_grain_clock_gating(struct amdgpu_device *adev,
1568 bool enable)
1569{
1570 uint32_t data, def;
1571 int i;
1572
1573 for (i = 0; i < adev->sdma.num_instances; i++) {
1574
1575 if (adev->sdma.instance[i].fw_version < 70 && adev->asic_type == CHIP_VANGOGH)
1576 adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_MGCG;
1577
1578 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1579 /* Enable sdma clock gating */
1580 def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1581 data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1582 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1583 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1584 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1585 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1586 SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1587 if (def != data)
1588 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1589 } else {
1590 /* Disable sdma clock gating */
1591 def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1592 data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1593 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1594 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1595 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1596 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1597 SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1598 if (def != data)
1599 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1600 }
1601 }
1602}
1603
1604static void sdma_v5_2_update_medium_grain_light_sleep(struct amdgpu_device *adev,
1605 bool enable)
1606{
1607 uint32_t data, def;
1608 int i;
1609
1610 for (i = 0; i < adev->sdma.num_instances; i++) {
1611
1612 if (adev->sdma.instance[i].fw_version < 70 && adev->asic_type == CHIP_VANGOGH)
1613 adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_LS;
1614
1615 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1616 /* Enable sdma mem light sleep */
1617 def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1618 data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1619 if (def != data)
1620 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1621
1622 } else {
1623 /* Disable sdma mem light sleep */
1624 def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1625 data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1626 if (def != data)
1627 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1628
1629 }
1630 }
1631}
1632
1633static int sdma_v5_2_set_clockgating_state(void *handle,
1634 enum amd_clockgating_state state)
1635{
1636 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1637
1638 if (amdgpu_sriov_vf(adev))
1639 return 0;
1640
1641 switch (adev->asic_type) {
1642 case CHIP_SIENNA_CICHLID:
1643 case CHIP_NAVY_FLOUNDER:
1644 case CHIP_VANGOGH:
1645 case CHIP_DIMGREY_CAVEFISH:
1646 case CHIP_BEIGE_GOBY:
1647 case CHIP_YELLOW_CARP:
1648 sdma_v5_2_update_medium_grain_clock_gating(adev,
1649 state == AMD_CG_STATE_GATE);
1650 sdma_v5_2_update_medium_grain_light_sleep(adev,
1651 state == AMD_CG_STATE_GATE);
1652 break;
1653 default:
1654 break;
1655 }
1656
1657 return 0;
1658}
1659
1660static int sdma_v5_2_set_powergating_state(void *handle,
1661 enum amd_powergating_state state)
1662{
1663 return 0;
1664}
1665
1666static void sdma_v5_2_get_clockgating_state(void *handle, u32 *flags)
1667{
1668 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1669 int data;
1670
1671 if (amdgpu_sriov_vf(adev))
1672 *flags = 0;
1673
1674 /* AMD_CG_SUPPORT_SDMA_LS */
1675 data = RREG32_KIQ(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL));
1676 if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1677 *flags |= AMD_CG_SUPPORT_SDMA_LS;
1678}
1679
1680const struct amd_ip_funcs sdma_v5_2_ip_funcs = {
1681 .name = "sdma_v5_2",
1682 .early_init = sdma_v5_2_early_init,
1683 .late_init = NULL,
1684 .sw_init = sdma_v5_2_sw_init,
1685 .sw_fini = sdma_v5_2_sw_fini,
1686 .hw_init = sdma_v5_2_hw_init,
1687 .hw_fini = sdma_v5_2_hw_fini,
1688 .suspend = sdma_v5_2_suspend,
1689 .resume = sdma_v5_2_resume,
1690 .is_idle = sdma_v5_2_is_idle,
1691 .wait_for_idle = sdma_v5_2_wait_for_idle,
1692 .soft_reset = sdma_v5_2_soft_reset,
1693 .set_clockgating_state = sdma_v5_2_set_clockgating_state,
1694 .set_powergating_state = sdma_v5_2_set_powergating_state,
1695 .get_clockgating_state = sdma_v5_2_get_clockgating_state,
1696};
1697
1698static const struct amdgpu_ring_funcs sdma_v5_2_ring_funcs = {
1699 .type = AMDGPU_RING_TYPE_SDMA,
1700 .align_mask = 0xf,
1701 .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1702 .support_64bit_ptrs = true,
1703 .vmhub = AMDGPU_GFXHUB_0,
1704 .get_rptr = sdma_v5_2_ring_get_rptr,
1705 .get_wptr = sdma_v5_2_ring_get_wptr,
1706 .set_wptr = sdma_v5_2_ring_set_wptr,
1707 .emit_frame_size =
1708 5 + /* sdma_v5_2_ring_init_cond_exec */
1709 6 + /* sdma_v5_2_ring_emit_hdp_flush */
1710 3 + /* hdp_invalidate */
1711 6 + /* sdma_v5_2_ring_emit_pipeline_sync */
1712 /* sdma_v5_2_ring_emit_vm_flush */
1713 SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1714 SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1715 10 + 10 + 10, /* sdma_v5_2_ring_emit_fence x3 for user fence, vm fence */
1716 .emit_ib_size = 7 + 6, /* sdma_v5_2_ring_emit_ib */
1717 .emit_ib = sdma_v5_2_ring_emit_ib,
1718 .emit_mem_sync = sdma_v5_2_ring_emit_mem_sync,
1719 .emit_fence = sdma_v5_2_ring_emit_fence,
1720 .emit_pipeline_sync = sdma_v5_2_ring_emit_pipeline_sync,
1721 .emit_vm_flush = sdma_v5_2_ring_emit_vm_flush,
1722 .emit_hdp_flush = sdma_v5_2_ring_emit_hdp_flush,
1723 .test_ring = sdma_v5_2_ring_test_ring,
1724 .test_ib = sdma_v5_2_ring_test_ib,
1725 .insert_nop = sdma_v5_2_ring_insert_nop,
1726 .pad_ib = sdma_v5_2_ring_pad_ib,
1727 .emit_wreg = sdma_v5_2_ring_emit_wreg,
1728 .emit_reg_wait = sdma_v5_2_ring_emit_reg_wait,
1729 .emit_reg_write_reg_wait = sdma_v5_2_ring_emit_reg_write_reg_wait,
1730 .init_cond_exec = sdma_v5_2_ring_init_cond_exec,
1731 .patch_cond_exec = sdma_v5_2_ring_patch_cond_exec,
1732 .preempt_ib = sdma_v5_2_ring_preempt_ib,
1733};
1734
1735static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev)
1736{
1737 int i;
1738
1739 for (i = 0; i < adev->sdma.num_instances; i++) {
1740 adev->sdma.instance[i].ring.funcs = &sdma_v5_2_ring_funcs;
1741 adev->sdma.instance[i].ring.me = i;
1742 }
1743}
1744
1745static const struct amdgpu_irq_src_funcs sdma_v5_2_trap_irq_funcs = {
1746 .set = sdma_v5_2_set_trap_irq_state,
1747 .process = sdma_v5_2_process_trap_irq,
1748};
1749
1750static const struct amdgpu_irq_src_funcs sdma_v5_2_illegal_inst_irq_funcs = {
1751 .process = sdma_v5_2_process_illegal_inst_irq,
1752};
1753
1754static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev)
1755{
1756 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1757 adev->sdma.num_instances;
1758 adev->sdma.trap_irq.funcs = &sdma_v5_2_trap_irq_funcs;
1759 adev->sdma.illegal_inst_irq.funcs = &sdma_v5_2_illegal_inst_irq_funcs;
1760}
1761
1762/**
1763 * sdma_v5_2_emit_copy_buffer - copy buffer using the sDMA engine
1764 *
1765 * @ib: indirect buffer to copy to
1766 * @src_offset: src GPU address
1767 * @dst_offset: dst GPU address
1768 * @byte_count: number of bytes to xfer
1769 * @tmz: if a secure copy should be used
1770 *
1771 * Copy GPU buffers using the DMA engine.
1772 * Used by the amdgpu ttm implementation to move pages if
1773 * registered as the asic copy callback.
1774 */
1775static void sdma_v5_2_emit_copy_buffer(struct amdgpu_ib *ib,
1776 uint64_t src_offset,
1777 uint64_t dst_offset,
1778 uint32_t byte_count,
1779 bool tmz)
1780{
1781 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1782 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
1783 SDMA_PKT_COPY_LINEAR_HEADER_TMZ(tmz ? 1 : 0);
1784 ib->ptr[ib->length_dw++] = byte_count - 1;
1785 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1786 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1787 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1788 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1789 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1790}
1791
1792/**
1793 * sdma_v5_2_emit_fill_buffer - fill buffer using the sDMA engine
1794 *
1795 * @ib: indirect buffer to fill
1796 * @src_data: value to write to buffer
1797 * @dst_offset: dst GPU address
1798 * @byte_count: number of bytes to xfer
1799 *
1800 * Fill GPU buffers using the DMA engine.
1801 */
1802static void sdma_v5_2_emit_fill_buffer(struct amdgpu_ib *ib,
1803 uint32_t src_data,
1804 uint64_t dst_offset,
1805 uint32_t byte_count)
1806{
1807 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1808 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1809 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1810 ib->ptr[ib->length_dw++] = src_data;
1811 ib->ptr[ib->length_dw++] = byte_count - 1;
1812}
1813
1814static const struct amdgpu_buffer_funcs sdma_v5_2_buffer_funcs = {
1815 .copy_max_bytes = 0x400000,
1816 .copy_num_dw = 7,
1817 .emit_copy_buffer = sdma_v5_2_emit_copy_buffer,
1818
1819 .fill_max_bytes = 0x400000,
1820 .fill_num_dw = 5,
1821 .emit_fill_buffer = sdma_v5_2_emit_fill_buffer,
1822};
1823
1824static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev)
1825{
1826 if (adev->mman.buffer_funcs == NULL) {
1827 adev->mman.buffer_funcs = &sdma_v5_2_buffer_funcs;
1828 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1829 }
1830}
1831
1832static const struct amdgpu_vm_pte_funcs sdma_v5_2_vm_pte_funcs = {
1833 .copy_pte_num_dw = 7,
1834 .copy_pte = sdma_v5_2_vm_copy_pte,
1835 .write_pte = sdma_v5_2_vm_write_pte,
1836 .set_pte_pde = sdma_v5_2_vm_set_pte_pde,
1837};
1838
1839static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev)
1840{
1841 unsigned i;
1842
1843 if (adev->vm_manager.vm_pte_funcs == NULL) {
1844 adev->vm_manager.vm_pte_funcs = &sdma_v5_2_vm_pte_funcs;
1845 for (i = 0; i < adev->sdma.num_instances; i++) {
1846 adev->vm_manager.vm_pte_scheds[i] =
1847 &adev->sdma.instance[i].ring.sched;
1848 }
1849 adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1850 }
1851}
1852
1853const struct amdgpu_ip_block_version sdma_v5_2_ip_block = {
1854 .type = AMD_IP_BLOCK_TYPE_SDMA,
1855 .major = 5,
1856 .minor = 2,
1857 .rev = 0,
1858 .funcs = &sdma_v5_2_ip_funcs,
1859};