Loading...
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 * Authors: Alex Deucher
23 */
24#include <linux/firmware.h>
25#include <drm/drmP.h>
26#include "amdgpu.h"
27#include "amdgpu_ucode.h"
28#include "amdgpu_trace.h"
29#include "vi.h"
30#include "vid.h"
31
32#include "oss/oss_2_4_d.h"
33#include "oss/oss_2_4_sh_mask.h"
34
35#include "gmc/gmc_7_1_d.h"
36#include "gmc/gmc_7_1_sh_mask.h"
37
38#include "gca/gfx_8_0_d.h"
39#include "gca/gfx_8_0_enum.h"
40#include "gca/gfx_8_0_sh_mask.h"
41
42#include "bif/bif_5_0_d.h"
43#include "bif/bif_5_0_sh_mask.h"
44
45#include "iceland_sdma_pkt_open.h"
46
47static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev);
48static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev);
49static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev);
50static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev);
51
52MODULE_FIRMWARE("amdgpu/topaz_sdma.bin");
53MODULE_FIRMWARE("amdgpu/topaz_sdma1.bin");
54
55static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
56{
57 SDMA0_REGISTER_OFFSET,
58 SDMA1_REGISTER_OFFSET
59};
60
61static const u32 golden_settings_iceland_a11[] =
62{
63 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
64 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
65 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
66 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
67};
68
69static const u32 iceland_mgcg_cgcg_init[] =
70{
71 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
72 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
73};
74
75/*
76 * sDMA - System DMA
77 * Starting with CIK, the GPU has new asynchronous
78 * DMA engines. These engines are used for compute
79 * and gfx. There are two DMA engines (SDMA0, SDMA1)
80 * and each one supports 1 ring buffer used for gfx
81 * and 2 queues used for compute.
82 *
83 * The programming model is very similar to the CP
84 * (ring buffer, IBs, etc.), but sDMA has it's own
85 * packet format that is different from the PM4 format
86 * used by the CP. sDMA supports copying data, writing
87 * embedded data, solid fills, and a number of other
88 * things. It also has support for tiling/detiling of
89 * buffers.
90 */
91
92static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev)
93{
94 switch (adev->asic_type) {
95 case CHIP_TOPAZ:
96 amdgpu_device_program_register_sequence(adev,
97 iceland_mgcg_cgcg_init,
98 ARRAY_SIZE(iceland_mgcg_cgcg_init));
99 amdgpu_device_program_register_sequence(adev,
100 golden_settings_iceland_a11,
101 ARRAY_SIZE(golden_settings_iceland_a11));
102 break;
103 default:
104 break;
105 }
106}
107
108static void sdma_v2_4_free_microcode(struct amdgpu_device *adev)
109{
110 int i;
111 for (i = 0; i < adev->sdma.num_instances; i++) {
112 release_firmware(adev->sdma.instance[i].fw);
113 adev->sdma.instance[i].fw = NULL;
114 }
115}
116
117/**
118 * sdma_v2_4_init_microcode - load ucode images from disk
119 *
120 * @adev: amdgpu_device pointer
121 *
122 * Use the firmware interface to load the ucode images into
123 * the driver (not loaded into hw).
124 * Returns 0 on success, error on failure.
125 */
126static int sdma_v2_4_init_microcode(struct amdgpu_device *adev)
127{
128 const char *chip_name;
129 char fw_name[30];
130 int err = 0, i;
131 struct amdgpu_firmware_info *info = NULL;
132 const struct common_firmware_header *header = NULL;
133 const struct sdma_firmware_header_v1_0 *hdr;
134
135 DRM_DEBUG("\n");
136
137 switch (adev->asic_type) {
138 case CHIP_TOPAZ:
139 chip_name = "topaz";
140 break;
141 default: BUG();
142 }
143
144 for (i = 0; i < adev->sdma.num_instances; i++) {
145 if (i == 0)
146 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
147 else
148 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
149 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
150 if (err)
151 goto out;
152 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
153 if (err)
154 goto out;
155 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
156 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
157 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
158 if (adev->sdma.instance[i].feature_version >= 20)
159 adev->sdma.instance[i].burst_nop = true;
160
161 if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) {
162 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
163 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
164 info->fw = adev->sdma.instance[i].fw;
165 header = (const struct common_firmware_header *)info->fw->data;
166 adev->firmware.fw_size +=
167 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
168 }
169 }
170
171out:
172 if (err) {
173 pr_err("sdma_v2_4: Failed to load firmware \"%s\"\n", fw_name);
174 for (i = 0; i < adev->sdma.num_instances; i++) {
175 release_firmware(adev->sdma.instance[i].fw);
176 adev->sdma.instance[i].fw = NULL;
177 }
178 }
179 return err;
180}
181
182/**
183 * sdma_v2_4_ring_get_rptr - get the current read pointer
184 *
185 * @ring: amdgpu ring pointer
186 *
187 * Get the current rptr from the hardware (VI+).
188 */
189static uint64_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring)
190{
191 /* XXX check if swapping is necessary on BE */
192 return ring->adev->wb.wb[ring->rptr_offs] >> 2;
193}
194
195/**
196 * sdma_v2_4_ring_get_wptr - get the current write pointer
197 *
198 * @ring: amdgpu ring pointer
199 *
200 * Get the current wptr from the hardware (VI+).
201 */
202static uint64_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring)
203{
204 struct amdgpu_device *adev = ring->adev;
205 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
206 u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) >> 2;
207
208 return wptr;
209}
210
211/**
212 * sdma_v2_4_ring_set_wptr - commit the write pointer
213 *
214 * @ring: amdgpu ring pointer
215 *
216 * Write the wptr back to the hardware (VI+).
217 */
218static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring)
219{
220 struct amdgpu_device *adev = ring->adev;
221 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
222
223 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], lower_32_bits(ring->wptr) << 2);
224}
225
226static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
227{
228 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
229 int i;
230
231 for (i = 0; i < count; i++)
232 if (sdma && sdma->burst_nop && (i == 0))
233 amdgpu_ring_write(ring, ring->funcs->nop |
234 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
235 else
236 amdgpu_ring_write(ring, ring->funcs->nop);
237}
238
239/**
240 * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine
241 *
242 * @ring: amdgpu ring pointer
243 * @ib: IB object to schedule
244 *
245 * Schedule an IB in the DMA ring (VI).
246 */
247static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring,
248 struct amdgpu_ib *ib,
249 unsigned vmid, bool ctx_switch)
250{
251 /* IB packet must end on a 8 DW boundary */
252 sdma_v2_4_ring_insert_nop(ring, (10 - (lower_32_bits(ring->wptr) & 7)) % 8);
253
254 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
255 SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
256 /* base must be 32 byte aligned */
257 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
258 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
259 amdgpu_ring_write(ring, ib->length_dw);
260 amdgpu_ring_write(ring, 0);
261 amdgpu_ring_write(ring, 0);
262
263}
264
265/**
266 * sdma_v2_4_hdp_flush_ring_emit - emit an hdp flush on the DMA ring
267 *
268 * @ring: amdgpu ring pointer
269 *
270 * Emit an hdp flush packet on the requested DMA ring.
271 */
272static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring)
273{
274 u32 ref_and_mask = 0;
275
276 if (ring == &ring->adev->sdma.instance[0].ring)
277 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1);
278 else
279 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1);
280
281 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
282 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
283 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
284 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
285 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
286 amdgpu_ring_write(ring, ref_and_mask); /* reference */
287 amdgpu_ring_write(ring, ref_and_mask); /* mask */
288 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
289 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
290}
291
292/**
293 * sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring
294 *
295 * @ring: amdgpu ring pointer
296 * @fence: amdgpu fence object
297 *
298 * Add a DMA fence packet to the ring to write
299 * the fence seq number and DMA trap packet to generate
300 * an interrupt if needed (VI).
301 */
302static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
303 unsigned flags)
304{
305 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
306 /* write the fence */
307 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
308 amdgpu_ring_write(ring, lower_32_bits(addr));
309 amdgpu_ring_write(ring, upper_32_bits(addr));
310 amdgpu_ring_write(ring, lower_32_bits(seq));
311
312 /* optionally write high bits as well */
313 if (write64bit) {
314 addr += 4;
315 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
316 amdgpu_ring_write(ring, lower_32_bits(addr));
317 amdgpu_ring_write(ring, upper_32_bits(addr));
318 amdgpu_ring_write(ring, upper_32_bits(seq));
319 }
320
321 /* generate an interrupt */
322 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
323 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
324}
325
326/**
327 * sdma_v2_4_gfx_stop - stop the gfx async dma engines
328 *
329 * @adev: amdgpu_device pointer
330 *
331 * Stop the gfx async dma ring buffers (VI).
332 */
333static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev)
334{
335 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
336 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
337 u32 rb_cntl, ib_cntl;
338 int i;
339
340 if ((adev->mman.buffer_funcs_ring == sdma0) ||
341 (adev->mman.buffer_funcs_ring == sdma1))
342 amdgpu_ttm_set_buffer_funcs_status(adev, false);
343
344 for (i = 0; i < adev->sdma.num_instances; i++) {
345 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
346 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
347 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
348 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
349 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
350 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
351 }
352 sdma0->ready = false;
353 sdma1->ready = false;
354}
355
356/**
357 * sdma_v2_4_rlc_stop - stop the compute async dma engines
358 *
359 * @adev: amdgpu_device pointer
360 *
361 * Stop the compute async dma queues (VI).
362 */
363static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev)
364{
365 /* XXX todo */
366}
367
368/**
369 * sdma_v2_4_enable - stop the async dma engines
370 *
371 * @adev: amdgpu_device pointer
372 * @enable: enable/disable the DMA MEs.
373 *
374 * Halt or unhalt the async dma engines (VI).
375 */
376static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable)
377{
378 u32 f32_cntl;
379 int i;
380
381 if (!enable) {
382 sdma_v2_4_gfx_stop(adev);
383 sdma_v2_4_rlc_stop(adev);
384 }
385
386 for (i = 0; i < adev->sdma.num_instances; i++) {
387 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
388 if (enable)
389 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0);
390 else
391 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
392 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl);
393 }
394}
395
396/**
397 * sdma_v2_4_gfx_resume - setup and start the async dma engines
398 *
399 * @adev: amdgpu_device pointer
400 *
401 * Set up the gfx DMA ring buffers and enable them (VI).
402 * Returns 0 for success, error for failure.
403 */
404static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev)
405{
406 struct amdgpu_ring *ring;
407 u32 rb_cntl, ib_cntl;
408 u32 rb_bufsz;
409 u32 wb_offset;
410 int i, j, r;
411
412 for (i = 0; i < adev->sdma.num_instances; i++) {
413 ring = &adev->sdma.instance[i].ring;
414 wb_offset = (ring->rptr_offs * 4);
415
416 mutex_lock(&adev->srbm_mutex);
417 for (j = 0; j < 16; j++) {
418 vi_srbm_select(adev, 0, 0, 0, j);
419 /* SDMA GFX */
420 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
421 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
422 }
423 vi_srbm_select(adev, 0, 0, 0, 0);
424 mutex_unlock(&adev->srbm_mutex);
425
426 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
427 adev->gfx.config.gb_addr_config & 0x70);
428
429 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
430
431 /* Set ring buffer size in dwords */
432 rb_bufsz = order_base_2(ring->ring_size / 4);
433 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
434 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
435#ifdef __BIG_ENDIAN
436 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
437 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
438 RPTR_WRITEBACK_SWAP_ENABLE, 1);
439#endif
440 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
441
442 /* Initialize the ring buffer's read and write pointers */
443 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
444 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
445 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0);
446 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0);
447
448 /* set the wb address whether it's enabled or not */
449 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
450 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
451 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
452 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
453
454 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
455
456 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
457 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
458
459 ring->wptr = 0;
460 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], lower_32_bits(ring->wptr) << 2);
461
462 /* enable DMA RB */
463 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
464 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
465
466 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
467 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
468#ifdef __BIG_ENDIAN
469 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
470#endif
471 /* enable DMA IBs */
472 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
473
474 ring->ready = true;
475 }
476
477 sdma_v2_4_enable(adev, true);
478 for (i = 0; i < adev->sdma.num_instances; i++) {
479 ring = &adev->sdma.instance[i].ring;
480 r = amdgpu_ring_test_ring(ring);
481 if (r) {
482 ring->ready = false;
483 return r;
484 }
485
486 if (adev->mman.buffer_funcs_ring == ring)
487 amdgpu_ttm_set_buffer_funcs_status(adev, true);
488 }
489
490 return 0;
491}
492
493/**
494 * sdma_v2_4_rlc_resume - setup and start the async dma engines
495 *
496 * @adev: amdgpu_device pointer
497 *
498 * Set up the compute DMA queues and enable them (VI).
499 * Returns 0 for success, error for failure.
500 */
501static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev)
502{
503 /* XXX todo */
504 return 0;
505}
506
507/**
508 * sdma_v2_4_load_microcode - load the sDMA ME ucode
509 *
510 * @adev: amdgpu_device pointer
511 *
512 * Loads the sDMA0/1 ucode.
513 * Returns 0 for success, -EINVAL if the ucode is not available.
514 */
515static int sdma_v2_4_load_microcode(struct amdgpu_device *adev)
516{
517 const struct sdma_firmware_header_v1_0 *hdr;
518 const __le32 *fw_data;
519 u32 fw_size;
520 int i, j;
521
522 /* halt the MEs */
523 sdma_v2_4_enable(adev, false);
524
525 for (i = 0; i < adev->sdma.num_instances; i++) {
526 if (!adev->sdma.instance[i].fw)
527 return -EINVAL;
528 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
529 amdgpu_ucode_print_sdma_hdr(&hdr->header);
530 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
531 fw_data = (const __le32 *)
532 (adev->sdma.instance[i].fw->data +
533 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
534 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
535 for (j = 0; j < fw_size; j++)
536 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
537 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version);
538 }
539
540 return 0;
541}
542
543/**
544 * sdma_v2_4_start - setup and start the async dma engines
545 *
546 * @adev: amdgpu_device pointer
547 *
548 * Set up the DMA engines and enable them (VI).
549 * Returns 0 for success, error for failure.
550 */
551static int sdma_v2_4_start(struct amdgpu_device *adev)
552{
553 int r;
554
555
556 if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
557 r = sdma_v2_4_load_microcode(adev);
558 if (r)
559 return r;
560 }
561
562 /* halt the engine before programing */
563 sdma_v2_4_enable(adev, false);
564
565 /* start the gfx rings and rlc compute queues */
566 r = sdma_v2_4_gfx_resume(adev);
567 if (r)
568 return r;
569 r = sdma_v2_4_rlc_resume(adev);
570 if (r)
571 return r;
572
573 return 0;
574}
575
576/**
577 * sdma_v2_4_ring_test_ring - simple async dma engine test
578 *
579 * @ring: amdgpu_ring structure holding ring information
580 *
581 * Test the DMA engine by writing using it to write an
582 * value to memory. (VI).
583 * Returns 0 for success, error for failure.
584 */
585static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring)
586{
587 struct amdgpu_device *adev = ring->adev;
588 unsigned i;
589 unsigned index;
590 int r;
591 u32 tmp;
592 u64 gpu_addr;
593
594 r = amdgpu_device_wb_get(adev, &index);
595 if (r) {
596 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
597 return r;
598 }
599
600 gpu_addr = adev->wb.gpu_addr + (index * 4);
601 tmp = 0xCAFEDEAD;
602 adev->wb.wb[index] = cpu_to_le32(tmp);
603
604 r = amdgpu_ring_alloc(ring, 5);
605 if (r) {
606 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
607 amdgpu_device_wb_free(adev, index);
608 return r;
609 }
610
611 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
612 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
613 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
614 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
615 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
616 amdgpu_ring_write(ring, 0xDEADBEEF);
617 amdgpu_ring_commit(ring);
618
619 for (i = 0; i < adev->usec_timeout; i++) {
620 tmp = le32_to_cpu(adev->wb.wb[index]);
621 if (tmp == 0xDEADBEEF)
622 break;
623 DRM_UDELAY(1);
624 }
625
626 if (i < adev->usec_timeout) {
627 DRM_DEBUG("ring test on %d succeeded in %d usecs\n", ring->idx, i);
628 } else {
629 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
630 ring->idx, tmp);
631 r = -EINVAL;
632 }
633 amdgpu_device_wb_free(adev, index);
634
635 return r;
636}
637
638/**
639 * sdma_v2_4_ring_test_ib - test an IB on the DMA engine
640 *
641 * @ring: amdgpu_ring structure holding ring information
642 *
643 * Test a simple IB in the DMA ring (VI).
644 * Returns 0 on success, error on failure.
645 */
646static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout)
647{
648 struct amdgpu_device *adev = ring->adev;
649 struct amdgpu_ib ib;
650 struct dma_fence *f = NULL;
651 unsigned index;
652 u32 tmp = 0;
653 u64 gpu_addr;
654 long r;
655
656 r = amdgpu_device_wb_get(adev, &index);
657 if (r) {
658 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
659 return r;
660 }
661
662 gpu_addr = adev->wb.gpu_addr + (index * 4);
663 tmp = 0xCAFEDEAD;
664 adev->wb.wb[index] = cpu_to_le32(tmp);
665 memset(&ib, 0, sizeof(ib));
666 r = amdgpu_ib_get(adev, NULL, 256, &ib);
667 if (r) {
668 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
669 goto err0;
670 }
671
672 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
673 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
674 ib.ptr[1] = lower_32_bits(gpu_addr);
675 ib.ptr[2] = upper_32_bits(gpu_addr);
676 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1);
677 ib.ptr[4] = 0xDEADBEEF;
678 ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
679 ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
680 ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
681 ib.length_dw = 8;
682
683 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
684 if (r)
685 goto err1;
686
687 r = dma_fence_wait_timeout(f, false, timeout);
688 if (r == 0) {
689 DRM_ERROR("amdgpu: IB test timed out\n");
690 r = -ETIMEDOUT;
691 goto err1;
692 } else if (r < 0) {
693 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
694 goto err1;
695 }
696 tmp = le32_to_cpu(adev->wb.wb[index]);
697 if (tmp == 0xDEADBEEF) {
698 DRM_DEBUG("ib test on ring %d succeeded\n", ring->idx);
699 r = 0;
700 } else {
701 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
702 r = -EINVAL;
703 }
704
705err1:
706 amdgpu_ib_free(adev, &ib, NULL);
707 dma_fence_put(f);
708err0:
709 amdgpu_device_wb_free(adev, index);
710 return r;
711}
712
713/**
714 * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART
715 *
716 * @ib: indirect buffer to fill with commands
717 * @pe: addr of the page entry
718 * @src: src addr to copy from
719 * @count: number of page entries to update
720 *
721 * Update PTEs by copying them from the GART using sDMA (CIK).
722 */
723static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib,
724 uint64_t pe, uint64_t src,
725 unsigned count)
726{
727 unsigned bytes = count * 8;
728
729 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
730 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
731 ib->ptr[ib->length_dw++] = bytes;
732 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
733 ib->ptr[ib->length_dw++] = lower_32_bits(src);
734 ib->ptr[ib->length_dw++] = upper_32_bits(src);
735 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
736 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
737}
738
739/**
740 * sdma_v2_4_vm_write_pte - update PTEs by writing them manually
741 *
742 * @ib: indirect buffer to fill with commands
743 * @pe: addr of the page entry
744 * @value: dst addr to write into pe
745 * @count: number of page entries to update
746 * @incr: increase next addr by incr bytes
747 *
748 * Update PTEs by writing them manually using sDMA (CIK).
749 */
750static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
751 uint64_t value, unsigned count,
752 uint32_t incr)
753{
754 unsigned ndw = count * 2;
755
756 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
757 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
758 ib->ptr[ib->length_dw++] = pe;
759 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
760 ib->ptr[ib->length_dw++] = ndw;
761 for (; ndw > 0; ndw -= 2) {
762 ib->ptr[ib->length_dw++] = lower_32_bits(value);
763 ib->ptr[ib->length_dw++] = upper_32_bits(value);
764 value += incr;
765 }
766}
767
768/**
769 * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA
770 *
771 * @ib: indirect buffer to fill with commands
772 * @pe: addr of the page entry
773 * @addr: dst addr to write into pe
774 * @count: number of page entries to update
775 * @incr: increase next addr by incr bytes
776 * @flags: access flags
777 *
778 * Update the page tables using sDMA (CIK).
779 */
780static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe,
781 uint64_t addr, unsigned count,
782 uint32_t incr, uint64_t flags)
783{
784 /* for physically contiguous pages (vram) */
785 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE);
786 ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
787 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
788 ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
789 ib->ptr[ib->length_dw++] = upper_32_bits(flags);
790 ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
791 ib->ptr[ib->length_dw++] = upper_32_bits(addr);
792 ib->ptr[ib->length_dw++] = incr; /* increment size */
793 ib->ptr[ib->length_dw++] = 0;
794 ib->ptr[ib->length_dw++] = count; /* number of entries */
795}
796
797/**
798 * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw
799 *
800 * @ib: indirect buffer to fill with padding
801 *
802 */
803static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
804{
805 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
806 u32 pad_count;
807 int i;
808
809 pad_count = (8 - (ib->length_dw & 0x7)) % 8;
810 for (i = 0; i < pad_count; i++)
811 if (sdma && sdma->burst_nop && (i == 0))
812 ib->ptr[ib->length_dw++] =
813 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
814 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
815 else
816 ib->ptr[ib->length_dw++] =
817 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
818}
819
820/**
821 * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline
822 *
823 * @ring: amdgpu_ring pointer
824 *
825 * Make sure all previous operations are completed (CIK).
826 */
827static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
828{
829 uint32_t seq = ring->fence_drv.sync_seq;
830 uint64_t addr = ring->fence_drv.gpu_addr;
831
832 /* wait for idle */
833 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
834 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
835 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
836 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
837 amdgpu_ring_write(ring, addr & 0xfffffffc);
838 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
839 amdgpu_ring_write(ring, seq); /* reference */
840 amdgpu_ring_write(ring, 0xffffffff); /* mask */
841 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
842 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
843}
844
845/**
846 * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA
847 *
848 * @ring: amdgpu_ring pointer
849 * @vm: amdgpu_vm pointer
850 *
851 * Update the page table base and flush the VM TLB
852 * using sDMA (VI).
853 */
854static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
855 unsigned vmid, uint64_t pd_addr)
856{
857 amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
858
859 /* wait for flush */
860 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
861 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
862 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */
863 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
864 amdgpu_ring_write(ring, 0);
865 amdgpu_ring_write(ring, 0); /* reference */
866 amdgpu_ring_write(ring, 0); /* mask */
867 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
868 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
869}
870
871static void sdma_v2_4_ring_emit_wreg(struct amdgpu_ring *ring,
872 uint32_t reg, uint32_t val)
873{
874 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
875 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
876 amdgpu_ring_write(ring, reg);
877 amdgpu_ring_write(ring, val);
878}
879
880static int sdma_v2_4_early_init(void *handle)
881{
882 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
883
884 adev->sdma.num_instances = SDMA_MAX_INSTANCE;
885
886 sdma_v2_4_set_ring_funcs(adev);
887 sdma_v2_4_set_buffer_funcs(adev);
888 sdma_v2_4_set_vm_pte_funcs(adev);
889 sdma_v2_4_set_irq_funcs(adev);
890
891 return 0;
892}
893
894static int sdma_v2_4_sw_init(void *handle)
895{
896 struct amdgpu_ring *ring;
897 int r, i;
898 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
899
900 /* SDMA trap event */
901 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 224,
902 &adev->sdma.trap_irq);
903 if (r)
904 return r;
905
906 /* SDMA Privileged inst */
907 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 241,
908 &adev->sdma.illegal_inst_irq);
909 if (r)
910 return r;
911
912 /* SDMA Privileged inst */
913 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 247,
914 &adev->sdma.illegal_inst_irq);
915 if (r)
916 return r;
917
918 r = sdma_v2_4_init_microcode(adev);
919 if (r) {
920 DRM_ERROR("Failed to load sdma firmware!\n");
921 return r;
922 }
923
924 for (i = 0; i < adev->sdma.num_instances; i++) {
925 ring = &adev->sdma.instance[i].ring;
926 ring->ring_obj = NULL;
927 ring->use_doorbell = false;
928 sprintf(ring->name, "sdma%d", i);
929 r = amdgpu_ring_init(adev, ring, 1024,
930 &adev->sdma.trap_irq,
931 (i == 0) ?
932 AMDGPU_SDMA_IRQ_TRAP0 :
933 AMDGPU_SDMA_IRQ_TRAP1);
934 if (r)
935 return r;
936 }
937
938 return r;
939}
940
941static int sdma_v2_4_sw_fini(void *handle)
942{
943 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
944 int i;
945
946 for (i = 0; i < adev->sdma.num_instances; i++)
947 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
948
949 sdma_v2_4_free_microcode(adev);
950 return 0;
951}
952
953static int sdma_v2_4_hw_init(void *handle)
954{
955 int r;
956 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
957
958 sdma_v2_4_init_golden_registers(adev);
959
960 r = sdma_v2_4_start(adev);
961 if (r)
962 return r;
963
964 return r;
965}
966
967static int sdma_v2_4_hw_fini(void *handle)
968{
969 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
970
971 sdma_v2_4_enable(adev, false);
972
973 return 0;
974}
975
976static int sdma_v2_4_suspend(void *handle)
977{
978 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
979
980 return sdma_v2_4_hw_fini(adev);
981}
982
983static int sdma_v2_4_resume(void *handle)
984{
985 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
986
987 return sdma_v2_4_hw_init(adev);
988}
989
990static bool sdma_v2_4_is_idle(void *handle)
991{
992 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
993 u32 tmp = RREG32(mmSRBM_STATUS2);
994
995 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
996 SRBM_STATUS2__SDMA1_BUSY_MASK))
997 return false;
998
999 return true;
1000}
1001
1002static int sdma_v2_4_wait_for_idle(void *handle)
1003{
1004 unsigned i;
1005 u32 tmp;
1006 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1007
1008 for (i = 0; i < adev->usec_timeout; i++) {
1009 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1010 SRBM_STATUS2__SDMA1_BUSY_MASK);
1011
1012 if (!tmp)
1013 return 0;
1014 udelay(1);
1015 }
1016 return -ETIMEDOUT;
1017}
1018
1019static int sdma_v2_4_soft_reset(void *handle)
1020{
1021 u32 srbm_soft_reset = 0;
1022 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1023 u32 tmp = RREG32(mmSRBM_STATUS2);
1024
1025 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1026 /* sdma0 */
1027 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1028 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1029 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1030 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1031 }
1032 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1033 /* sdma1 */
1034 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1035 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1036 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1037 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1038 }
1039
1040 if (srbm_soft_reset) {
1041 tmp = RREG32(mmSRBM_SOFT_RESET);
1042 tmp |= srbm_soft_reset;
1043 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1044 WREG32(mmSRBM_SOFT_RESET, tmp);
1045 tmp = RREG32(mmSRBM_SOFT_RESET);
1046
1047 udelay(50);
1048
1049 tmp &= ~srbm_soft_reset;
1050 WREG32(mmSRBM_SOFT_RESET, tmp);
1051 tmp = RREG32(mmSRBM_SOFT_RESET);
1052
1053 /* Wait a little for things to settle down */
1054 udelay(50);
1055 }
1056
1057 return 0;
1058}
1059
1060static int sdma_v2_4_set_trap_irq_state(struct amdgpu_device *adev,
1061 struct amdgpu_irq_src *src,
1062 unsigned type,
1063 enum amdgpu_interrupt_state state)
1064{
1065 u32 sdma_cntl;
1066
1067 switch (type) {
1068 case AMDGPU_SDMA_IRQ_TRAP0:
1069 switch (state) {
1070 case AMDGPU_IRQ_STATE_DISABLE:
1071 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1072 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1073 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1074 break;
1075 case AMDGPU_IRQ_STATE_ENABLE:
1076 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1077 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1078 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1079 break;
1080 default:
1081 break;
1082 }
1083 break;
1084 case AMDGPU_SDMA_IRQ_TRAP1:
1085 switch (state) {
1086 case AMDGPU_IRQ_STATE_DISABLE:
1087 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1088 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1089 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1090 break;
1091 case AMDGPU_IRQ_STATE_ENABLE:
1092 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1093 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1094 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1095 break;
1096 default:
1097 break;
1098 }
1099 break;
1100 default:
1101 break;
1102 }
1103 return 0;
1104}
1105
1106static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
1107 struct amdgpu_irq_src *source,
1108 struct amdgpu_iv_entry *entry)
1109{
1110 u8 instance_id, queue_id;
1111
1112 instance_id = (entry->ring_id & 0x3) >> 0;
1113 queue_id = (entry->ring_id & 0xc) >> 2;
1114 DRM_DEBUG("IH: SDMA trap\n");
1115 switch (instance_id) {
1116 case 0:
1117 switch (queue_id) {
1118 case 0:
1119 amdgpu_fence_process(&adev->sdma.instance[0].ring);
1120 break;
1121 case 1:
1122 /* XXX compute */
1123 break;
1124 case 2:
1125 /* XXX compute */
1126 break;
1127 }
1128 break;
1129 case 1:
1130 switch (queue_id) {
1131 case 0:
1132 amdgpu_fence_process(&adev->sdma.instance[1].ring);
1133 break;
1134 case 1:
1135 /* XXX compute */
1136 break;
1137 case 2:
1138 /* XXX compute */
1139 break;
1140 }
1141 break;
1142 }
1143 return 0;
1144}
1145
1146static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev,
1147 struct amdgpu_irq_src *source,
1148 struct amdgpu_iv_entry *entry)
1149{
1150 DRM_ERROR("Illegal instruction in SDMA command stream\n");
1151 schedule_work(&adev->reset_work);
1152 return 0;
1153}
1154
1155static int sdma_v2_4_set_clockgating_state(void *handle,
1156 enum amd_clockgating_state state)
1157{
1158 /* XXX handled via the smc on VI */
1159 return 0;
1160}
1161
1162static int sdma_v2_4_set_powergating_state(void *handle,
1163 enum amd_powergating_state state)
1164{
1165 return 0;
1166}
1167
1168static const struct amd_ip_funcs sdma_v2_4_ip_funcs = {
1169 .name = "sdma_v2_4",
1170 .early_init = sdma_v2_4_early_init,
1171 .late_init = NULL,
1172 .sw_init = sdma_v2_4_sw_init,
1173 .sw_fini = sdma_v2_4_sw_fini,
1174 .hw_init = sdma_v2_4_hw_init,
1175 .hw_fini = sdma_v2_4_hw_fini,
1176 .suspend = sdma_v2_4_suspend,
1177 .resume = sdma_v2_4_resume,
1178 .is_idle = sdma_v2_4_is_idle,
1179 .wait_for_idle = sdma_v2_4_wait_for_idle,
1180 .soft_reset = sdma_v2_4_soft_reset,
1181 .set_clockgating_state = sdma_v2_4_set_clockgating_state,
1182 .set_powergating_state = sdma_v2_4_set_powergating_state,
1183};
1184
1185static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
1186 .type = AMDGPU_RING_TYPE_SDMA,
1187 .align_mask = 0xf,
1188 .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1189 .support_64bit_ptrs = false,
1190 .get_rptr = sdma_v2_4_ring_get_rptr,
1191 .get_wptr = sdma_v2_4_ring_get_wptr,
1192 .set_wptr = sdma_v2_4_ring_set_wptr,
1193 .emit_frame_size =
1194 6 + /* sdma_v2_4_ring_emit_hdp_flush */
1195 3 + /* hdp invalidate */
1196 6 + /* sdma_v2_4_ring_emit_pipeline_sync */
1197 VI_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* sdma_v2_4_ring_emit_vm_flush */
1198 10 + 10 + 10, /* sdma_v2_4_ring_emit_fence x3 for user fence, vm fence */
1199 .emit_ib_size = 7 + 6, /* sdma_v2_4_ring_emit_ib */
1200 .emit_ib = sdma_v2_4_ring_emit_ib,
1201 .emit_fence = sdma_v2_4_ring_emit_fence,
1202 .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync,
1203 .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
1204 .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
1205 .test_ring = sdma_v2_4_ring_test_ring,
1206 .test_ib = sdma_v2_4_ring_test_ib,
1207 .insert_nop = sdma_v2_4_ring_insert_nop,
1208 .pad_ib = sdma_v2_4_ring_pad_ib,
1209 .emit_wreg = sdma_v2_4_ring_emit_wreg,
1210};
1211
1212static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
1213{
1214 int i;
1215
1216 for (i = 0; i < adev->sdma.num_instances; i++)
1217 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs;
1218}
1219
1220static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = {
1221 .set = sdma_v2_4_set_trap_irq_state,
1222 .process = sdma_v2_4_process_trap_irq,
1223};
1224
1225static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = {
1226 .process = sdma_v2_4_process_illegal_inst_irq,
1227};
1228
1229static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev)
1230{
1231 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1232 adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs;
1233 adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs;
1234}
1235
1236/**
1237 * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine
1238 *
1239 * @ring: amdgpu_ring structure holding ring information
1240 * @src_offset: src GPU address
1241 * @dst_offset: dst GPU address
1242 * @byte_count: number of bytes to xfer
1243 *
1244 * Copy GPU buffers using the DMA engine (VI).
1245 * Used by the amdgpu ttm implementation to move pages if
1246 * registered as the asic copy callback.
1247 */
1248static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib,
1249 uint64_t src_offset,
1250 uint64_t dst_offset,
1251 uint32_t byte_count)
1252{
1253 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1254 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1255 ib->ptr[ib->length_dw++] = byte_count;
1256 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1257 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1258 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1259 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1260 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1261}
1262
1263/**
1264 * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine
1265 *
1266 * @ring: amdgpu_ring structure holding ring information
1267 * @src_data: value to write to buffer
1268 * @dst_offset: dst GPU address
1269 * @byte_count: number of bytes to xfer
1270 *
1271 * Fill GPU buffers using the DMA engine (VI).
1272 */
1273static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib,
1274 uint32_t src_data,
1275 uint64_t dst_offset,
1276 uint32_t byte_count)
1277{
1278 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1279 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1280 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1281 ib->ptr[ib->length_dw++] = src_data;
1282 ib->ptr[ib->length_dw++] = byte_count;
1283}
1284
1285static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = {
1286 .copy_max_bytes = 0x1fffff,
1287 .copy_num_dw = 7,
1288 .emit_copy_buffer = sdma_v2_4_emit_copy_buffer,
1289
1290 .fill_max_bytes = 0x1fffff,
1291 .fill_num_dw = 7,
1292 .emit_fill_buffer = sdma_v2_4_emit_fill_buffer,
1293};
1294
1295static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev)
1296{
1297 if (adev->mman.buffer_funcs == NULL) {
1298 adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs;
1299 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1300 }
1301}
1302
1303static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = {
1304 .copy_pte_num_dw = 7,
1305 .copy_pte = sdma_v2_4_vm_copy_pte,
1306
1307 .write_pte = sdma_v2_4_vm_write_pte,
1308 .set_pte_pde = sdma_v2_4_vm_set_pte_pde,
1309};
1310
1311static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev)
1312{
1313 unsigned i;
1314
1315 if (adev->vm_manager.vm_pte_funcs == NULL) {
1316 adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs;
1317 for (i = 0; i < adev->sdma.num_instances; i++)
1318 adev->vm_manager.vm_pte_rings[i] =
1319 &adev->sdma.instance[i].ring;
1320
1321 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances;
1322 }
1323}
1324
1325const struct amdgpu_ip_block_version sdma_v2_4_ip_block =
1326{
1327 .type = AMD_IP_BLOCK_TYPE_SDMA,
1328 .major = 2,
1329 .minor = 4,
1330 .rev = 0,
1331 .funcs = &sdma_v2_4_ip_funcs,
1332};
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 * Authors: Alex Deucher
23 */
24#include <linux/firmware.h>
25#include <drm/drmP.h>
26#include "amdgpu.h"
27#include "amdgpu_ucode.h"
28#include "amdgpu_trace.h"
29#include "vi.h"
30#include "vid.h"
31
32#include "oss/oss_2_4_d.h"
33#include "oss/oss_2_4_sh_mask.h"
34
35#include "gmc/gmc_7_1_d.h"
36#include "gmc/gmc_7_1_sh_mask.h"
37
38#include "gca/gfx_8_0_d.h"
39#include "gca/gfx_8_0_enum.h"
40#include "gca/gfx_8_0_sh_mask.h"
41
42#include "bif/bif_5_0_d.h"
43#include "bif/bif_5_0_sh_mask.h"
44
45#include "iceland_sdma_pkt_open.h"
46
47static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev);
48static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev);
49static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev);
50static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev);
51
52MODULE_FIRMWARE("amdgpu/topaz_sdma.bin");
53MODULE_FIRMWARE("amdgpu/topaz_sdma1.bin");
54
55static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
56{
57 SDMA0_REGISTER_OFFSET,
58 SDMA1_REGISTER_OFFSET
59};
60
61static const u32 golden_settings_iceland_a11[] =
62{
63 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
64 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
65 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
66 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
67};
68
69static const u32 iceland_mgcg_cgcg_init[] =
70{
71 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
72 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
73};
74
75/*
76 * sDMA - System DMA
77 * Starting with CIK, the GPU has new asynchronous
78 * DMA engines. These engines are used for compute
79 * and gfx. There are two DMA engines (SDMA0, SDMA1)
80 * and each one supports 1 ring buffer used for gfx
81 * and 2 queues used for compute.
82 *
83 * The programming model is very similar to the CP
84 * (ring buffer, IBs, etc.), but sDMA has it's own
85 * packet format that is different from the PM4 format
86 * used by the CP. sDMA supports copying data, writing
87 * embedded data, solid fills, and a number of other
88 * things. It also has support for tiling/detiling of
89 * buffers.
90 */
91
92static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev)
93{
94 switch (adev->asic_type) {
95 case CHIP_TOPAZ:
96 amdgpu_program_register_sequence(adev,
97 iceland_mgcg_cgcg_init,
98 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
99 amdgpu_program_register_sequence(adev,
100 golden_settings_iceland_a11,
101 (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
102 break;
103 default:
104 break;
105 }
106}
107
108/**
109 * sdma_v2_4_init_microcode - load ucode images from disk
110 *
111 * @adev: amdgpu_device pointer
112 *
113 * Use the firmware interface to load the ucode images into
114 * the driver (not loaded into hw).
115 * Returns 0 on success, error on failure.
116 */
117static int sdma_v2_4_init_microcode(struct amdgpu_device *adev)
118{
119 const char *chip_name;
120 char fw_name[30];
121 int err = 0, i;
122 struct amdgpu_firmware_info *info = NULL;
123 const struct common_firmware_header *header = NULL;
124 const struct sdma_firmware_header_v1_0 *hdr;
125
126 DRM_DEBUG("\n");
127
128 switch (adev->asic_type) {
129 case CHIP_TOPAZ:
130 chip_name = "topaz";
131 break;
132 default: BUG();
133 }
134
135 for (i = 0; i < adev->sdma.num_instances; i++) {
136 if (i == 0)
137 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
138 else
139 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
140 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
141 if (err)
142 goto out;
143 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
144 if (err)
145 goto out;
146 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
147 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
148 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
149 if (adev->sdma.instance[i].feature_version >= 20)
150 adev->sdma.instance[i].burst_nop = true;
151
152 if (adev->firmware.smu_load) {
153 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
154 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
155 info->fw = adev->sdma.instance[i].fw;
156 header = (const struct common_firmware_header *)info->fw->data;
157 adev->firmware.fw_size +=
158 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
159 }
160 }
161
162out:
163 if (err) {
164 printk(KERN_ERR
165 "sdma_v2_4: Failed to load firmware \"%s\"\n",
166 fw_name);
167 for (i = 0; i < adev->sdma.num_instances; i++) {
168 release_firmware(adev->sdma.instance[i].fw);
169 adev->sdma.instance[i].fw = NULL;
170 }
171 }
172 return err;
173}
174
175/**
176 * sdma_v2_4_ring_get_rptr - get the current read pointer
177 *
178 * @ring: amdgpu ring pointer
179 *
180 * Get the current rptr from the hardware (VI+).
181 */
182static uint32_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring)
183{
184 u32 rptr;
185
186 /* XXX check if swapping is necessary on BE */
187 rptr = ring->adev->wb.wb[ring->rptr_offs] >> 2;
188
189 return rptr;
190}
191
192/**
193 * sdma_v2_4_ring_get_wptr - get the current write pointer
194 *
195 * @ring: amdgpu ring pointer
196 *
197 * Get the current wptr from the hardware (VI+).
198 */
199static uint32_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring)
200{
201 struct amdgpu_device *adev = ring->adev;
202 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
203 u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) >> 2;
204
205 return wptr;
206}
207
208/**
209 * sdma_v2_4_ring_set_wptr - commit the write pointer
210 *
211 * @ring: amdgpu ring pointer
212 *
213 * Write the wptr back to the hardware (VI+).
214 */
215static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring)
216{
217 struct amdgpu_device *adev = ring->adev;
218 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
219
220 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], ring->wptr << 2);
221}
222
223static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
224{
225 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
226 int i;
227
228 for (i = 0; i < count; i++)
229 if (sdma && sdma->burst_nop && (i == 0))
230 amdgpu_ring_write(ring, ring->nop |
231 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
232 else
233 amdgpu_ring_write(ring, ring->nop);
234}
235
236/**
237 * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine
238 *
239 * @ring: amdgpu ring pointer
240 * @ib: IB object to schedule
241 *
242 * Schedule an IB in the DMA ring (VI).
243 */
244static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring,
245 struct amdgpu_ib *ib)
246{
247 u32 vmid = ib->vm_id & 0xf;
248 u32 next_rptr = ring->wptr + 5;
249
250 while ((next_rptr & 7) != 2)
251 next_rptr++;
252
253 next_rptr += 6;
254
255 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
256 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
257 amdgpu_ring_write(ring, lower_32_bits(ring->next_rptr_gpu_addr) & 0xfffffffc);
258 amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr));
259 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
260 amdgpu_ring_write(ring, next_rptr);
261
262 /* IB packet must end on a 8 DW boundary */
263 sdma_v2_4_ring_insert_nop(ring, (10 - (ring->wptr & 7)) % 8);
264
265 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
266 SDMA_PKT_INDIRECT_HEADER_VMID(vmid));
267 /* base must be 32 byte aligned */
268 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
269 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
270 amdgpu_ring_write(ring, ib->length_dw);
271 amdgpu_ring_write(ring, 0);
272 amdgpu_ring_write(ring, 0);
273
274}
275
276/**
277 * sdma_v2_4_hdp_flush_ring_emit - emit an hdp flush on the DMA ring
278 *
279 * @ring: amdgpu ring pointer
280 *
281 * Emit an hdp flush packet on the requested DMA ring.
282 */
283static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring)
284{
285 u32 ref_and_mask = 0;
286
287 if (ring == &ring->adev->sdma.instance[0].ring)
288 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1);
289 else
290 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1);
291
292 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
293 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
294 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
295 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
296 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
297 amdgpu_ring_write(ring, ref_and_mask); /* reference */
298 amdgpu_ring_write(ring, ref_and_mask); /* mask */
299 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
300 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
301}
302
303static void sdma_v2_4_ring_emit_hdp_invalidate(struct amdgpu_ring *ring)
304{
305 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
306 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
307 amdgpu_ring_write(ring, mmHDP_DEBUG0);
308 amdgpu_ring_write(ring, 1);
309}
310/**
311 * sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring
312 *
313 * @ring: amdgpu ring pointer
314 * @fence: amdgpu fence object
315 *
316 * Add a DMA fence packet to the ring to write
317 * the fence seq number and DMA trap packet to generate
318 * an interrupt if needed (VI).
319 */
320static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
321 unsigned flags)
322{
323 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
324 /* write the fence */
325 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
326 amdgpu_ring_write(ring, lower_32_bits(addr));
327 amdgpu_ring_write(ring, upper_32_bits(addr));
328 amdgpu_ring_write(ring, lower_32_bits(seq));
329
330 /* optionally write high bits as well */
331 if (write64bit) {
332 addr += 4;
333 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
334 amdgpu_ring_write(ring, lower_32_bits(addr));
335 amdgpu_ring_write(ring, upper_32_bits(addr));
336 amdgpu_ring_write(ring, upper_32_bits(seq));
337 }
338
339 /* generate an interrupt */
340 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
341 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
342}
343
344/**
345 * sdma_v2_4_gfx_stop - stop the gfx async dma engines
346 *
347 * @adev: amdgpu_device pointer
348 *
349 * Stop the gfx async dma ring buffers (VI).
350 */
351static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev)
352{
353 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
354 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
355 u32 rb_cntl, ib_cntl;
356 int i;
357
358 if ((adev->mman.buffer_funcs_ring == sdma0) ||
359 (adev->mman.buffer_funcs_ring == sdma1))
360 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
361
362 for (i = 0; i < adev->sdma.num_instances; i++) {
363 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
364 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
365 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
366 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
367 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
368 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
369 }
370 sdma0->ready = false;
371 sdma1->ready = false;
372}
373
374/**
375 * sdma_v2_4_rlc_stop - stop the compute async dma engines
376 *
377 * @adev: amdgpu_device pointer
378 *
379 * Stop the compute async dma queues (VI).
380 */
381static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev)
382{
383 /* XXX todo */
384}
385
386/**
387 * sdma_v2_4_enable - stop the async dma engines
388 *
389 * @adev: amdgpu_device pointer
390 * @enable: enable/disable the DMA MEs.
391 *
392 * Halt or unhalt the async dma engines (VI).
393 */
394static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable)
395{
396 u32 f32_cntl;
397 int i;
398
399 if (enable == false) {
400 sdma_v2_4_gfx_stop(adev);
401 sdma_v2_4_rlc_stop(adev);
402 }
403
404 for (i = 0; i < adev->sdma.num_instances; i++) {
405 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
406 if (enable)
407 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0);
408 else
409 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
410 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl);
411 }
412}
413
414/**
415 * sdma_v2_4_gfx_resume - setup and start the async dma engines
416 *
417 * @adev: amdgpu_device pointer
418 *
419 * Set up the gfx DMA ring buffers and enable them (VI).
420 * Returns 0 for success, error for failure.
421 */
422static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev)
423{
424 struct amdgpu_ring *ring;
425 u32 rb_cntl, ib_cntl;
426 u32 rb_bufsz;
427 u32 wb_offset;
428 int i, j, r;
429
430 for (i = 0; i < adev->sdma.num_instances; i++) {
431 ring = &adev->sdma.instance[i].ring;
432 wb_offset = (ring->rptr_offs * 4);
433
434 mutex_lock(&adev->srbm_mutex);
435 for (j = 0; j < 16; j++) {
436 vi_srbm_select(adev, 0, 0, 0, j);
437 /* SDMA GFX */
438 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
439 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
440 }
441 vi_srbm_select(adev, 0, 0, 0, 0);
442 mutex_unlock(&adev->srbm_mutex);
443
444 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
445 adev->gfx.config.gb_addr_config & 0x70);
446
447 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
448
449 /* Set ring buffer size in dwords */
450 rb_bufsz = order_base_2(ring->ring_size / 4);
451 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
452 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
453#ifdef __BIG_ENDIAN
454 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
455 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
456 RPTR_WRITEBACK_SWAP_ENABLE, 1);
457#endif
458 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
459
460 /* Initialize the ring buffer's read and write pointers */
461 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
462 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
463
464 /* set the wb address whether it's enabled or not */
465 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
466 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
467 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
468 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
469
470 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
471
472 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
473 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
474
475 ring->wptr = 0;
476 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
477
478 /* enable DMA RB */
479 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
480 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
481
482 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
483 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
484#ifdef __BIG_ENDIAN
485 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
486#endif
487 /* enable DMA IBs */
488 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
489
490 ring->ready = true;
491
492 r = amdgpu_ring_test_ring(ring);
493 if (r) {
494 ring->ready = false;
495 return r;
496 }
497
498 if (adev->mman.buffer_funcs_ring == ring)
499 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size);
500 }
501
502 return 0;
503}
504
505/**
506 * sdma_v2_4_rlc_resume - setup and start the async dma engines
507 *
508 * @adev: amdgpu_device pointer
509 *
510 * Set up the compute DMA queues and enable them (VI).
511 * Returns 0 for success, error for failure.
512 */
513static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev)
514{
515 /* XXX todo */
516 return 0;
517}
518
519/**
520 * sdma_v2_4_load_microcode - load the sDMA ME ucode
521 *
522 * @adev: amdgpu_device pointer
523 *
524 * Loads the sDMA0/1 ucode.
525 * Returns 0 for success, -EINVAL if the ucode is not available.
526 */
527static int sdma_v2_4_load_microcode(struct amdgpu_device *adev)
528{
529 const struct sdma_firmware_header_v1_0 *hdr;
530 const __le32 *fw_data;
531 u32 fw_size;
532 int i, j;
533
534 /* halt the MEs */
535 sdma_v2_4_enable(adev, false);
536
537 for (i = 0; i < adev->sdma.num_instances; i++) {
538 if (!adev->sdma.instance[i].fw)
539 return -EINVAL;
540 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
541 amdgpu_ucode_print_sdma_hdr(&hdr->header);
542 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
543 fw_data = (const __le32 *)
544 (adev->sdma.instance[i].fw->data +
545 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
546 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
547 for (j = 0; j < fw_size; j++)
548 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
549 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version);
550 }
551
552 return 0;
553}
554
555/**
556 * sdma_v2_4_start - setup and start the async dma engines
557 *
558 * @adev: amdgpu_device pointer
559 *
560 * Set up the DMA engines and enable them (VI).
561 * Returns 0 for success, error for failure.
562 */
563static int sdma_v2_4_start(struct amdgpu_device *adev)
564{
565 int r;
566
567 if (!adev->firmware.smu_load) {
568 r = sdma_v2_4_load_microcode(adev);
569 if (r)
570 return r;
571 } else {
572 r = adev->smu.smumgr_funcs->check_fw_load_finish(adev,
573 AMDGPU_UCODE_ID_SDMA0);
574 if (r)
575 return -EINVAL;
576 r = adev->smu.smumgr_funcs->check_fw_load_finish(adev,
577 AMDGPU_UCODE_ID_SDMA1);
578 if (r)
579 return -EINVAL;
580 }
581
582 /* unhalt the MEs */
583 sdma_v2_4_enable(adev, true);
584
585 /* start the gfx rings and rlc compute queues */
586 r = sdma_v2_4_gfx_resume(adev);
587 if (r)
588 return r;
589 r = sdma_v2_4_rlc_resume(adev);
590 if (r)
591 return r;
592
593 return 0;
594}
595
596/**
597 * sdma_v2_4_ring_test_ring - simple async dma engine test
598 *
599 * @ring: amdgpu_ring structure holding ring information
600 *
601 * Test the DMA engine by writing using it to write an
602 * value to memory. (VI).
603 * Returns 0 for success, error for failure.
604 */
605static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring)
606{
607 struct amdgpu_device *adev = ring->adev;
608 unsigned i;
609 unsigned index;
610 int r;
611 u32 tmp;
612 u64 gpu_addr;
613
614 r = amdgpu_wb_get(adev, &index);
615 if (r) {
616 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
617 return r;
618 }
619
620 gpu_addr = adev->wb.gpu_addr + (index * 4);
621 tmp = 0xCAFEDEAD;
622 adev->wb.wb[index] = cpu_to_le32(tmp);
623
624 r = amdgpu_ring_alloc(ring, 5);
625 if (r) {
626 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
627 amdgpu_wb_free(adev, index);
628 return r;
629 }
630
631 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
632 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
633 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
634 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
635 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
636 amdgpu_ring_write(ring, 0xDEADBEEF);
637 amdgpu_ring_commit(ring);
638
639 for (i = 0; i < adev->usec_timeout; i++) {
640 tmp = le32_to_cpu(adev->wb.wb[index]);
641 if (tmp == 0xDEADBEEF)
642 break;
643 DRM_UDELAY(1);
644 }
645
646 if (i < adev->usec_timeout) {
647 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
648 } else {
649 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
650 ring->idx, tmp);
651 r = -EINVAL;
652 }
653 amdgpu_wb_free(adev, index);
654
655 return r;
656}
657
658/**
659 * sdma_v2_4_ring_test_ib - test an IB on the DMA engine
660 *
661 * @ring: amdgpu_ring structure holding ring information
662 *
663 * Test a simple IB in the DMA ring (VI).
664 * Returns 0 on success, error on failure.
665 */
666static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring)
667{
668 struct amdgpu_device *adev = ring->adev;
669 struct amdgpu_ib ib;
670 struct fence *f = NULL;
671 unsigned i;
672 unsigned index;
673 int r;
674 u32 tmp = 0;
675 u64 gpu_addr;
676
677 r = amdgpu_wb_get(adev, &index);
678 if (r) {
679 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
680 return r;
681 }
682
683 gpu_addr = adev->wb.gpu_addr + (index * 4);
684 tmp = 0xCAFEDEAD;
685 adev->wb.wb[index] = cpu_to_le32(tmp);
686 memset(&ib, 0, sizeof(ib));
687 r = amdgpu_ib_get(adev, NULL, 256, &ib);
688 if (r) {
689 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
690 goto err0;
691 }
692
693 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
694 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
695 ib.ptr[1] = lower_32_bits(gpu_addr);
696 ib.ptr[2] = upper_32_bits(gpu_addr);
697 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1);
698 ib.ptr[4] = 0xDEADBEEF;
699 ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
700 ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
701 ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
702 ib.length_dw = 8;
703
704 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
705 if (r)
706 goto err1;
707
708 r = fence_wait(f, false);
709 if (r) {
710 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
711 goto err1;
712 }
713 for (i = 0; i < adev->usec_timeout; i++) {
714 tmp = le32_to_cpu(adev->wb.wb[index]);
715 if (tmp == 0xDEADBEEF)
716 break;
717 DRM_UDELAY(1);
718 }
719 if (i < adev->usec_timeout) {
720 DRM_INFO("ib test on ring %d succeeded in %u usecs\n",
721 ring->idx, i);
722 goto err1;
723 } else {
724 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
725 r = -EINVAL;
726 }
727
728err1:
729 fence_put(f);
730 amdgpu_ib_free(adev, &ib, NULL);
731 fence_put(f);
732err0:
733 amdgpu_wb_free(adev, index);
734 return r;
735}
736
737/**
738 * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART
739 *
740 * @ib: indirect buffer to fill with commands
741 * @pe: addr of the page entry
742 * @src: src addr to copy from
743 * @count: number of page entries to update
744 *
745 * Update PTEs by copying them from the GART using sDMA (CIK).
746 */
747static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib,
748 uint64_t pe, uint64_t src,
749 unsigned count)
750{
751 while (count) {
752 unsigned bytes = count * 8;
753 if (bytes > 0x1FFFF8)
754 bytes = 0x1FFFF8;
755
756 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
757 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
758 ib->ptr[ib->length_dw++] = bytes;
759 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
760 ib->ptr[ib->length_dw++] = lower_32_bits(src);
761 ib->ptr[ib->length_dw++] = upper_32_bits(src);
762 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
763 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
764
765 pe += bytes;
766 src += bytes;
767 count -= bytes / 8;
768 }
769}
770
771/**
772 * sdma_v2_4_vm_write_pte - update PTEs by writing them manually
773 *
774 * @ib: indirect buffer to fill with commands
775 * @pe: addr of the page entry
776 * @addr: dst addr to write into pe
777 * @count: number of page entries to update
778 * @incr: increase next addr by incr bytes
779 * @flags: access flags
780 *
781 * Update PTEs by writing them manually using sDMA (CIK).
782 */
783static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib,
784 const dma_addr_t *pages_addr, uint64_t pe,
785 uint64_t addr, unsigned count,
786 uint32_t incr, uint32_t flags)
787{
788 uint64_t value;
789 unsigned ndw;
790
791 while (count) {
792 ndw = count * 2;
793 if (ndw > 0xFFFFE)
794 ndw = 0xFFFFE;
795
796 /* for non-physically contiguous pages (system) */
797 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
798 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
799 ib->ptr[ib->length_dw++] = pe;
800 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
801 ib->ptr[ib->length_dw++] = ndw;
802 for (; ndw > 0; ndw -= 2, --count, pe += 8) {
803 value = amdgpu_vm_map_gart(pages_addr, addr);
804 addr += incr;
805 value |= flags;
806 ib->ptr[ib->length_dw++] = value;
807 ib->ptr[ib->length_dw++] = upper_32_bits(value);
808 }
809 }
810}
811
812/**
813 * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA
814 *
815 * @ib: indirect buffer to fill with commands
816 * @pe: addr of the page entry
817 * @addr: dst addr to write into pe
818 * @count: number of page entries to update
819 * @incr: increase next addr by incr bytes
820 * @flags: access flags
821 *
822 * Update the page tables using sDMA (CIK).
823 */
824static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib,
825 uint64_t pe,
826 uint64_t addr, unsigned count,
827 uint32_t incr, uint32_t flags)
828{
829 uint64_t value;
830 unsigned ndw;
831
832 while (count) {
833 ndw = count;
834 if (ndw > 0x7FFFF)
835 ndw = 0x7FFFF;
836
837 if (flags & AMDGPU_PTE_VALID)
838 value = addr;
839 else
840 value = 0;
841
842 /* for physically contiguous pages (vram) */
843 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE);
844 ib->ptr[ib->length_dw++] = pe; /* dst addr */
845 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
846 ib->ptr[ib->length_dw++] = flags; /* mask */
847 ib->ptr[ib->length_dw++] = 0;
848 ib->ptr[ib->length_dw++] = value; /* value */
849 ib->ptr[ib->length_dw++] = upper_32_bits(value);
850 ib->ptr[ib->length_dw++] = incr; /* increment size */
851 ib->ptr[ib->length_dw++] = 0;
852 ib->ptr[ib->length_dw++] = ndw; /* number of entries */
853
854 pe += ndw * 8;
855 addr += ndw * incr;
856 count -= ndw;
857 }
858}
859
860/**
861 * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw
862 *
863 * @ib: indirect buffer to fill with padding
864 *
865 */
866static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
867{
868 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
869 u32 pad_count;
870 int i;
871
872 pad_count = (8 - (ib->length_dw & 0x7)) % 8;
873 for (i = 0; i < pad_count; i++)
874 if (sdma && sdma->burst_nop && (i == 0))
875 ib->ptr[ib->length_dw++] =
876 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
877 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
878 else
879 ib->ptr[ib->length_dw++] =
880 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
881}
882
883/**
884 * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline
885 *
886 * @ring: amdgpu_ring pointer
887 *
888 * Make sure all previous operations are completed (CIK).
889 */
890static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
891{
892 uint32_t seq = ring->fence_drv.sync_seq;
893 uint64_t addr = ring->fence_drv.gpu_addr;
894
895 /* wait for idle */
896 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
897 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
898 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
899 SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
900 amdgpu_ring_write(ring, addr & 0xfffffffc);
901 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
902 amdgpu_ring_write(ring, seq); /* reference */
903 amdgpu_ring_write(ring, 0xfffffff); /* mask */
904 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
905 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
906}
907
908/**
909 * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA
910 *
911 * @ring: amdgpu_ring pointer
912 * @vm: amdgpu_vm pointer
913 *
914 * Update the page table base and flush the VM TLB
915 * using sDMA (VI).
916 */
917static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
918 unsigned vm_id, uint64_t pd_addr)
919{
920 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
921 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
922 if (vm_id < 8) {
923 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id));
924 } else {
925 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8));
926 }
927 amdgpu_ring_write(ring, pd_addr >> 12);
928
929 /* flush TLB */
930 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
931 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
932 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
933 amdgpu_ring_write(ring, 1 << vm_id);
934
935 /* wait for flush */
936 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
937 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
938 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */
939 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
940 amdgpu_ring_write(ring, 0);
941 amdgpu_ring_write(ring, 0); /* reference */
942 amdgpu_ring_write(ring, 0); /* mask */
943 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
944 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
945}
946
947static int sdma_v2_4_early_init(void *handle)
948{
949 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
950
951 adev->sdma.num_instances = SDMA_MAX_INSTANCE;
952
953 sdma_v2_4_set_ring_funcs(adev);
954 sdma_v2_4_set_buffer_funcs(adev);
955 sdma_v2_4_set_vm_pte_funcs(adev);
956 sdma_v2_4_set_irq_funcs(adev);
957
958 return 0;
959}
960
961static int sdma_v2_4_sw_init(void *handle)
962{
963 struct amdgpu_ring *ring;
964 int r, i;
965 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
966
967 /* SDMA trap event */
968 r = amdgpu_irq_add_id(adev, 224, &adev->sdma.trap_irq);
969 if (r)
970 return r;
971
972 /* SDMA Privileged inst */
973 r = amdgpu_irq_add_id(adev, 241, &adev->sdma.illegal_inst_irq);
974 if (r)
975 return r;
976
977 /* SDMA Privileged inst */
978 r = amdgpu_irq_add_id(adev, 247, &adev->sdma.illegal_inst_irq);
979 if (r)
980 return r;
981
982 r = sdma_v2_4_init_microcode(adev);
983 if (r) {
984 DRM_ERROR("Failed to load sdma firmware!\n");
985 return r;
986 }
987
988 for (i = 0; i < adev->sdma.num_instances; i++) {
989 ring = &adev->sdma.instance[i].ring;
990 ring->ring_obj = NULL;
991 ring->use_doorbell = false;
992 sprintf(ring->name, "sdma%d", i);
993 r = amdgpu_ring_init(adev, ring, 256 * 1024,
994 SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 0xf,
995 &adev->sdma.trap_irq,
996 (i == 0) ?
997 AMDGPU_SDMA_IRQ_TRAP0 : AMDGPU_SDMA_IRQ_TRAP1,
998 AMDGPU_RING_TYPE_SDMA);
999 if (r)
1000 return r;
1001 }
1002
1003 return r;
1004}
1005
1006static int sdma_v2_4_sw_fini(void *handle)
1007{
1008 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1009 int i;
1010
1011 for (i = 0; i < adev->sdma.num_instances; i++)
1012 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1013
1014 return 0;
1015}
1016
1017static int sdma_v2_4_hw_init(void *handle)
1018{
1019 int r;
1020 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1021
1022 sdma_v2_4_init_golden_registers(adev);
1023
1024 r = sdma_v2_4_start(adev);
1025 if (r)
1026 return r;
1027
1028 return r;
1029}
1030
1031static int sdma_v2_4_hw_fini(void *handle)
1032{
1033 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1034
1035 sdma_v2_4_enable(adev, false);
1036
1037 return 0;
1038}
1039
1040static int sdma_v2_4_suspend(void *handle)
1041{
1042 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1043
1044 return sdma_v2_4_hw_fini(adev);
1045}
1046
1047static int sdma_v2_4_resume(void *handle)
1048{
1049 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1050
1051 return sdma_v2_4_hw_init(adev);
1052}
1053
1054static bool sdma_v2_4_is_idle(void *handle)
1055{
1056 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1057 u32 tmp = RREG32(mmSRBM_STATUS2);
1058
1059 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
1060 SRBM_STATUS2__SDMA1_BUSY_MASK))
1061 return false;
1062
1063 return true;
1064}
1065
1066static int sdma_v2_4_wait_for_idle(void *handle)
1067{
1068 unsigned i;
1069 u32 tmp;
1070 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1071
1072 for (i = 0; i < adev->usec_timeout; i++) {
1073 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1074 SRBM_STATUS2__SDMA1_BUSY_MASK);
1075
1076 if (!tmp)
1077 return 0;
1078 udelay(1);
1079 }
1080 return -ETIMEDOUT;
1081}
1082
1083static void sdma_v2_4_print_status(void *handle)
1084{
1085 int i, j;
1086 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1087
1088 dev_info(adev->dev, "VI SDMA registers\n");
1089 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n",
1090 RREG32(mmSRBM_STATUS2));
1091 for (i = 0; i < adev->sdma.num_instances; i++) {
1092 dev_info(adev->dev, " SDMA%d_STATUS_REG=0x%08X\n",
1093 i, RREG32(mmSDMA0_STATUS_REG + sdma_offsets[i]));
1094 dev_info(adev->dev, " SDMA%d_F32_CNTL=0x%08X\n",
1095 i, RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]));
1096 dev_info(adev->dev, " SDMA%d_CNTL=0x%08X\n",
1097 i, RREG32(mmSDMA0_CNTL + sdma_offsets[i]));
1098 dev_info(adev->dev, " SDMA%d_SEM_WAIT_FAIL_TIMER_CNTL=0x%08X\n",
1099 i, RREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i]));
1100 dev_info(adev->dev, " SDMA%d_GFX_IB_CNTL=0x%08X\n",
1101 i, RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]));
1102 dev_info(adev->dev, " SDMA%d_GFX_RB_CNTL=0x%08X\n",
1103 i, RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]));
1104 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR=0x%08X\n",
1105 i, RREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i]));
1106 dev_info(adev->dev, " SDMA%d_GFX_RB_WPTR=0x%08X\n",
1107 i, RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i]));
1108 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_HI=0x%08X\n",
1109 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i]));
1110 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_LO=0x%08X\n",
1111 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i]));
1112 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE=0x%08X\n",
1113 i, RREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i]));
1114 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE_HI=0x%08X\n",
1115 i, RREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i]));
1116 dev_info(adev->dev, " SDMA%d_TILING_CONFIG=0x%08X\n",
1117 i, RREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i]));
1118 mutex_lock(&adev->srbm_mutex);
1119 for (j = 0; j < 16; j++) {
1120 vi_srbm_select(adev, 0, 0, 0, j);
1121 dev_info(adev->dev, " VM %d:\n", j);
1122 dev_info(adev->dev, " SDMA%d_GFX_VIRTUAL_ADDR=0x%08X\n",
1123 i, RREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i]));
1124 dev_info(adev->dev, " SDMA%d_GFX_APE1_CNTL=0x%08X\n",
1125 i, RREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i]));
1126 }
1127 vi_srbm_select(adev, 0, 0, 0, 0);
1128 mutex_unlock(&adev->srbm_mutex);
1129 }
1130}
1131
1132static int sdma_v2_4_soft_reset(void *handle)
1133{
1134 u32 srbm_soft_reset = 0;
1135 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1136 u32 tmp = RREG32(mmSRBM_STATUS2);
1137
1138 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1139 /* sdma0 */
1140 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1141 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1142 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1143 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1144 }
1145 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1146 /* sdma1 */
1147 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1148 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1149 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1150 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1151 }
1152
1153 if (srbm_soft_reset) {
1154 sdma_v2_4_print_status((void *)adev);
1155
1156 tmp = RREG32(mmSRBM_SOFT_RESET);
1157 tmp |= srbm_soft_reset;
1158 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1159 WREG32(mmSRBM_SOFT_RESET, tmp);
1160 tmp = RREG32(mmSRBM_SOFT_RESET);
1161
1162 udelay(50);
1163
1164 tmp &= ~srbm_soft_reset;
1165 WREG32(mmSRBM_SOFT_RESET, tmp);
1166 tmp = RREG32(mmSRBM_SOFT_RESET);
1167
1168 /* Wait a little for things to settle down */
1169 udelay(50);
1170
1171 sdma_v2_4_print_status((void *)adev);
1172 }
1173
1174 return 0;
1175}
1176
1177static int sdma_v2_4_set_trap_irq_state(struct amdgpu_device *adev,
1178 struct amdgpu_irq_src *src,
1179 unsigned type,
1180 enum amdgpu_interrupt_state state)
1181{
1182 u32 sdma_cntl;
1183
1184 switch (type) {
1185 case AMDGPU_SDMA_IRQ_TRAP0:
1186 switch (state) {
1187 case AMDGPU_IRQ_STATE_DISABLE:
1188 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1189 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1190 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1191 break;
1192 case AMDGPU_IRQ_STATE_ENABLE:
1193 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1194 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1195 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1196 break;
1197 default:
1198 break;
1199 }
1200 break;
1201 case AMDGPU_SDMA_IRQ_TRAP1:
1202 switch (state) {
1203 case AMDGPU_IRQ_STATE_DISABLE:
1204 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1205 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1206 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1207 break;
1208 case AMDGPU_IRQ_STATE_ENABLE:
1209 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1210 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1211 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1212 break;
1213 default:
1214 break;
1215 }
1216 break;
1217 default:
1218 break;
1219 }
1220 return 0;
1221}
1222
1223static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
1224 struct amdgpu_irq_src *source,
1225 struct amdgpu_iv_entry *entry)
1226{
1227 u8 instance_id, queue_id;
1228
1229 instance_id = (entry->ring_id & 0x3) >> 0;
1230 queue_id = (entry->ring_id & 0xc) >> 2;
1231 DRM_DEBUG("IH: SDMA trap\n");
1232 switch (instance_id) {
1233 case 0:
1234 switch (queue_id) {
1235 case 0:
1236 amdgpu_fence_process(&adev->sdma.instance[0].ring);
1237 break;
1238 case 1:
1239 /* XXX compute */
1240 break;
1241 case 2:
1242 /* XXX compute */
1243 break;
1244 }
1245 break;
1246 case 1:
1247 switch (queue_id) {
1248 case 0:
1249 amdgpu_fence_process(&adev->sdma.instance[1].ring);
1250 break;
1251 case 1:
1252 /* XXX compute */
1253 break;
1254 case 2:
1255 /* XXX compute */
1256 break;
1257 }
1258 break;
1259 }
1260 return 0;
1261}
1262
1263static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev,
1264 struct amdgpu_irq_src *source,
1265 struct amdgpu_iv_entry *entry)
1266{
1267 DRM_ERROR("Illegal instruction in SDMA command stream\n");
1268 schedule_work(&adev->reset_work);
1269 return 0;
1270}
1271
1272static int sdma_v2_4_set_clockgating_state(void *handle,
1273 enum amd_clockgating_state state)
1274{
1275 /* XXX handled via the smc on VI */
1276 return 0;
1277}
1278
1279static int sdma_v2_4_set_powergating_state(void *handle,
1280 enum amd_powergating_state state)
1281{
1282 return 0;
1283}
1284
1285const struct amd_ip_funcs sdma_v2_4_ip_funcs = {
1286 .early_init = sdma_v2_4_early_init,
1287 .late_init = NULL,
1288 .sw_init = sdma_v2_4_sw_init,
1289 .sw_fini = sdma_v2_4_sw_fini,
1290 .hw_init = sdma_v2_4_hw_init,
1291 .hw_fini = sdma_v2_4_hw_fini,
1292 .suspend = sdma_v2_4_suspend,
1293 .resume = sdma_v2_4_resume,
1294 .is_idle = sdma_v2_4_is_idle,
1295 .wait_for_idle = sdma_v2_4_wait_for_idle,
1296 .soft_reset = sdma_v2_4_soft_reset,
1297 .print_status = sdma_v2_4_print_status,
1298 .set_clockgating_state = sdma_v2_4_set_clockgating_state,
1299 .set_powergating_state = sdma_v2_4_set_powergating_state,
1300};
1301
1302static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
1303 .get_rptr = sdma_v2_4_ring_get_rptr,
1304 .get_wptr = sdma_v2_4_ring_get_wptr,
1305 .set_wptr = sdma_v2_4_ring_set_wptr,
1306 .parse_cs = NULL,
1307 .emit_ib = sdma_v2_4_ring_emit_ib,
1308 .emit_fence = sdma_v2_4_ring_emit_fence,
1309 .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync,
1310 .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
1311 .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
1312 .emit_hdp_invalidate = sdma_v2_4_ring_emit_hdp_invalidate,
1313 .test_ring = sdma_v2_4_ring_test_ring,
1314 .test_ib = sdma_v2_4_ring_test_ib,
1315 .insert_nop = sdma_v2_4_ring_insert_nop,
1316 .pad_ib = sdma_v2_4_ring_pad_ib,
1317};
1318
1319static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
1320{
1321 int i;
1322
1323 for (i = 0; i < adev->sdma.num_instances; i++)
1324 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs;
1325}
1326
1327static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = {
1328 .set = sdma_v2_4_set_trap_irq_state,
1329 .process = sdma_v2_4_process_trap_irq,
1330};
1331
1332static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = {
1333 .process = sdma_v2_4_process_illegal_inst_irq,
1334};
1335
1336static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev)
1337{
1338 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1339 adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs;
1340 adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs;
1341}
1342
1343/**
1344 * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine
1345 *
1346 * @ring: amdgpu_ring structure holding ring information
1347 * @src_offset: src GPU address
1348 * @dst_offset: dst GPU address
1349 * @byte_count: number of bytes to xfer
1350 *
1351 * Copy GPU buffers using the DMA engine (VI).
1352 * Used by the amdgpu ttm implementation to move pages if
1353 * registered as the asic copy callback.
1354 */
1355static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib,
1356 uint64_t src_offset,
1357 uint64_t dst_offset,
1358 uint32_t byte_count)
1359{
1360 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1361 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1362 ib->ptr[ib->length_dw++] = byte_count;
1363 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1364 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1365 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1366 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1367 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1368}
1369
1370/**
1371 * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine
1372 *
1373 * @ring: amdgpu_ring structure holding ring information
1374 * @src_data: value to write to buffer
1375 * @dst_offset: dst GPU address
1376 * @byte_count: number of bytes to xfer
1377 *
1378 * Fill GPU buffers using the DMA engine (VI).
1379 */
1380static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib,
1381 uint32_t src_data,
1382 uint64_t dst_offset,
1383 uint32_t byte_count)
1384{
1385 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1386 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1387 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1388 ib->ptr[ib->length_dw++] = src_data;
1389 ib->ptr[ib->length_dw++] = byte_count;
1390}
1391
1392static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = {
1393 .copy_max_bytes = 0x1fffff,
1394 .copy_num_dw = 7,
1395 .emit_copy_buffer = sdma_v2_4_emit_copy_buffer,
1396
1397 .fill_max_bytes = 0x1fffff,
1398 .fill_num_dw = 7,
1399 .emit_fill_buffer = sdma_v2_4_emit_fill_buffer,
1400};
1401
1402static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev)
1403{
1404 if (adev->mman.buffer_funcs == NULL) {
1405 adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs;
1406 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1407 }
1408}
1409
1410static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = {
1411 .copy_pte = sdma_v2_4_vm_copy_pte,
1412 .write_pte = sdma_v2_4_vm_write_pte,
1413 .set_pte_pde = sdma_v2_4_vm_set_pte_pde,
1414};
1415
1416static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev)
1417{
1418 unsigned i;
1419
1420 if (adev->vm_manager.vm_pte_funcs == NULL) {
1421 adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs;
1422 for (i = 0; i < adev->sdma.num_instances; i++)
1423 adev->vm_manager.vm_pte_rings[i] =
1424 &adev->sdma.instance[i].ring;
1425
1426 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances;
1427 }
1428}