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drm/amdgpu: make pad_ib a ring function v3
[deliverable/linux.git] / drivers / gpu / drm / amd / amdgpu / sdma_v3_0.c
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_3_0_d.h"
33 #include "oss/oss_3_0_sh_mask.h"
34
35 #include "gmc/gmc_8_1_d.h"
36 #include "gmc/gmc_8_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 "tonga_sdma_pkt_open.h"
46
47 static void sdma_v3_0_set_ring_funcs(struct amdgpu_device *adev);
48 static void sdma_v3_0_set_buffer_funcs(struct amdgpu_device *adev);
49 static void sdma_v3_0_set_vm_pte_funcs(struct amdgpu_device *adev);
50 static void sdma_v3_0_set_irq_funcs(struct amdgpu_device *adev);
51
52 MODULE_FIRMWARE("amdgpu/tonga_sdma.bin");
53 MODULE_FIRMWARE("amdgpu/tonga_sdma1.bin");
54 MODULE_FIRMWARE("amdgpu/carrizo_sdma.bin");
55 MODULE_FIRMWARE("amdgpu/carrizo_sdma1.bin");
56 MODULE_FIRMWARE("amdgpu/fiji_sdma.bin");
57 MODULE_FIRMWARE("amdgpu/fiji_sdma1.bin");
58 MODULE_FIRMWARE("amdgpu/stoney_sdma.bin");
59
60 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
61 {
62 SDMA0_REGISTER_OFFSET,
63 SDMA1_REGISTER_OFFSET
64 };
65
66 static const u32 golden_settings_tonga_a11[] =
67 {
68 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
69 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
70 mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100,
71 mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
72 mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
73 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
74 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
75 mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100,
76 mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
77 mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
78 };
79
80 static const u32 tonga_mgcg_cgcg_init[] =
81 {
82 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
83 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
84 };
85
86 static const u32 golden_settings_fiji_a10[] =
87 {
88 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
89 mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100,
90 mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
91 mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
92 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
93 mmSDMA1_GFX_IB_CNTL, 0x800f0111, 0x00000100,
94 mmSDMA1_RLC0_IB_CNTL, 0x800f0111, 0x00000100,
95 mmSDMA1_RLC1_IB_CNTL, 0x800f0111, 0x00000100,
96 };
97
98 static const u32 fiji_mgcg_cgcg_init[] =
99 {
100 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
101 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
102 };
103
104 static const u32 cz_golden_settings_a11[] =
105 {
106 mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
107 mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
108 mmSDMA0_GFX_IB_CNTL, 0x00000100, 0x00000100,
109 mmSDMA0_POWER_CNTL, 0x00000800, 0x0003c800,
110 mmSDMA0_RLC0_IB_CNTL, 0x00000100, 0x00000100,
111 mmSDMA0_RLC1_IB_CNTL, 0x00000100, 0x00000100,
112 mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
113 mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
114 mmSDMA1_GFX_IB_CNTL, 0x00000100, 0x00000100,
115 mmSDMA1_POWER_CNTL, 0x00000800, 0x0003c800,
116 mmSDMA1_RLC0_IB_CNTL, 0x00000100, 0x00000100,
117 mmSDMA1_RLC1_IB_CNTL, 0x00000100, 0x00000100,
118 };
119
120 static const u32 cz_mgcg_cgcg_init[] =
121 {
122 mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
123 mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
124 };
125
126 static const u32 stoney_golden_settings_a11[] =
127 {
128 mmSDMA0_GFX_IB_CNTL, 0x00000100, 0x00000100,
129 mmSDMA0_POWER_CNTL, 0x00000800, 0x0003c800,
130 mmSDMA0_RLC0_IB_CNTL, 0x00000100, 0x00000100,
131 mmSDMA0_RLC1_IB_CNTL, 0x00000100, 0x00000100,
132 };
133
134 static const u32 stoney_mgcg_cgcg_init[] =
135 {
136 mmSDMA0_CLK_CTRL, 0xffffffff, 0x00000100,
137 };
138
139 /*
140 * sDMA - System DMA
141 * Starting with CIK, the GPU has new asynchronous
142 * DMA engines. These engines are used for compute
143 * and gfx. There are two DMA engines (SDMA0, SDMA1)
144 * and each one supports 1 ring buffer used for gfx
145 * and 2 queues used for compute.
146 *
147 * The programming model is very similar to the CP
148 * (ring buffer, IBs, etc.), but sDMA has it's own
149 * packet format that is different from the PM4 format
150 * used by the CP. sDMA supports copying data, writing
151 * embedded data, solid fills, and a number of other
152 * things. It also has support for tiling/detiling of
153 * buffers.
154 */
155
156 static void sdma_v3_0_init_golden_registers(struct amdgpu_device *adev)
157 {
158 switch (adev->asic_type) {
159 case CHIP_FIJI:
160 amdgpu_program_register_sequence(adev,
161 fiji_mgcg_cgcg_init,
162 (const u32)ARRAY_SIZE(fiji_mgcg_cgcg_init));
163 amdgpu_program_register_sequence(adev,
164 golden_settings_fiji_a10,
165 (const u32)ARRAY_SIZE(golden_settings_fiji_a10));
166 break;
167 case CHIP_TONGA:
168 amdgpu_program_register_sequence(adev,
169 tonga_mgcg_cgcg_init,
170 (const u32)ARRAY_SIZE(tonga_mgcg_cgcg_init));
171 amdgpu_program_register_sequence(adev,
172 golden_settings_tonga_a11,
173 (const u32)ARRAY_SIZE(golden_settings_tonga_a11));
174 break;
175 case CHIP_CARRIZO:
176 amdgpu_program_register_sequence(adev,
177 cz_mgcg_cgcg_init,
178 (const u32)ARRAY_SIZE(cz_mgcg_cgcg_init));
179 amdgpu_program_register_sequence(adev,
180 cz_golden_settings_a11,
181 (const u32)ARRAY_SIZE(cz_golden_settings_a11));
182 break;
183 case CHIP_STONEY:
184 amdgpu_program_register_sequence(adev,
185 stoney_mgcg_cgcg_init,
186 (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init));
187 amdgpu_program_register_sequence(adev,
188 stoney_golden_settings_a11,
189 (const u32)ARRAY_SIZE(stoney_golden_settings_a11));
190 break;
191 default:
192 break;
193 }
194 }
195
196 /**
197 * sdma_v3_0_init_microcode - load ucode images from disk
198 *
199 * @adev: amdgpu_device pointer
200 *
201 * Use the firmware interface to load the ucode images into
202 * the driver (not loaded into hw).
203 * Returns 0 on success, error on failure.
204 */
205 static int sdma_v3_0_init_microcode(struct amdgpu_device *adev)
206 {
207 const char *chip_name;
208 char fw_name[30];
209 int err = 0, i;
210 struct amdgpu_firmware_info *info = NULL;
211 const struct common_firmware_header *header = NULL;
212 const struct sdma_firmware_header_v1_0 *hdr;
213
214 DRM_DEBUG("\n");
215
216 switch (adev->asic_type) {
217 case CHIP_TONGA:
218 chip_name = "tonga";
219 break;
220 case CHIP_FIJI:
221 chip_name = "fiji";
222 break;
223 case CHIP_CARRIZO:
224 chip_name = "carrizo";
225 break;
226 case CHIP_STONEY:
227 chip_name = "stoney";
228 break;
229 default: BUG();
230 }
231
232 for (i = 0; i < adev->sdma.num_instances; i++) {
233 if (i == 0)
234 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
235 else
236 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
237 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
238 if (err)
239 goto out;
240 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
241 if (err)
242 goto out;
243 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
244 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
245 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
246 if (adev->sdma.instance[i].feature_version >= 20)
247 adev->sdma.instance[i].burst_nop = true;
248
249 if (adev->firmware.smu_load) {
250 info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
251 info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
252 info->fw = adev->sdma.instance[i].fw;
253 header = (const struct common_firmware_header *)info->fw->data;
254 adev->firmware.fw_size +=
255 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
256 }
257 }
258 out:
259 if (err) {
260 printk(KERN_ERR
261 "sdma_v3_0: Failed to load firmware \"%s\"\n",
262 fw_name);
263 for (i = 0; i < adev->sdma.num_instances; i++) {
264 release_firmware(adev->sdma.instance[i].fw);
265 adev->sdma.instance[i].fw = NULL;
266 }
267 }
268 return err;
269 }
270
271 /**
272 * sdma_v3_0_ring_get_rptr - get the current read pointer
273 *
274 * @ring: amdgpu ring pointer
275 *
276 * Get the current rptr from the hardware (VI+).
277 */
278 static uint32_t sdma_v3_0_ring_get_rptr(struct amdgpu_ring *ring)
279 {
280 u32 rptr;
281
282 /* XXX check if swapping is necessary on BE */
283 rptr = ring->adev->wb.wb[ring->rptr_offs] >> 2;
284
285 return rptr;
286 }
287
288 /**
289 * sdma_v3_0_ring_get_wptr - get the current write pointer
290 *
291 * @ring: amdgpu ring pointer
292 *
293 * Get the current wptr from the hardware (VI+).
294 */
295 static uint32_t sdma_v3_0_ring_get_wptr(struct amdgpu_ring *ring)
296 {
297 struct amdgpu_device *adev = ring->adev;
298 u32 wptr;
299
300 if (ring->use_doorbell) {
301 /* XXX check if swapping is necessary on BE */
302 wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2;
303 } else {
304 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
305
306 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) >> 2;
307 }
308
309 return wptr;
310 }
311
312 /**
313 * sdma_v3_0_ring_set_wptr - commit the write pointer
314 *
315 * @ring: amdgpu ring pointer
316 *
317 * Write the wptr back to the hardware (VI+).
318 */
319 static void sdma_v3_0_ring_set_wptr(struct amdgpu_ring *ring)
320 {
321 struct amdgpu_device *adev = ring->adev;
322
323 if (ring->use_doorbell) {
324 /* XXX check if swapping is necessary on BE */
325 adev->wb.wb[ring->wptr_offs] = ring->wptr << 2;
326 WDOORBELL32(ring->doorbell_index, ring->wptr << 2);
327 } else {
328 int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
329
330 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], ring->wptr << 2);
331 }
332 }
333
334 static void sdma_v3_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
335 {
336 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
337 int i;
338
339 for (i = 0; i < count; i++)
340 if (sdma && sdma->burst_nop && (i == 0))
341 amdgpu_ring_write(ring, ring->nop |
342 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
343 else
344 amdgpu_ring_write(ring, ring->nop);
345 }
346
347 /**
348 * sdma_v3_0_ring_emit_ib - Schedule an IB on the DMA engine
349 *
350 * @ring: amdgpu ring pointer
351 * @ib: IB object to schedule
352 *
353 * Schedule an IB in the DMA ring (VI).
354 */
355 static void sdma_v3_0_ring_emit_ib(struct amdgpu_ring *ring,
356 struct amdgpu_ib *ib)
357 {
358 u32 vmid = (ib->vm ? ib->vm->ids[ring->idx].id : 0) & 0xf;
359 u32 next_rptr = ring->wptr + 5;
360
361 while ((next_rptr & 7) != 2)
362 next_rptr++;
363 next_rptr += 6;
364
365 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
366 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
367 amdgpu_ring_write(ring, lower_32_bits(ring->next_rptr_gpu_addr) & 0xfffffffc);
368 amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr));
369 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
370 amdgpu_ring_write(ring, next_rptr);
371
372 /* IB packet must end on a 8 DW boundary */
373 sdma_v3_0_ring_insert_nop(ring, (10 - (ring->wptr & 7)) % 8);
374
375 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
376 SDMA_PKT_INDIRECT_HEADER_VMID(vmid));
377 /* base must be 32 byte aligned */
378 amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
379 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
380 amdgpu_ring_write(ring, ib->length_dw);
381 amdgpu_ring_write(ring, 0);
382 amdgpu_ring_write(ring, 0);
383
384 }
385
386 /**
387 * sdma_v3_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
388 *
389 * @ring: amdgpu ring pointer
390 *
391 * Emit an hdp flush packet on the requested DMA ring.
392 */
393 static void sdma_v3_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
394 {
395 u32 ref_and_mask = 0;
396
397 if (ring == &ring->adev->sdma.instance[0].ring)
398 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1);
399 else
400 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1);
401
402 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
403 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
404 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
405 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
406 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
407 amdgpu_ring_write(ring, ref_and_mask); /* reference */
408 amdgpu_ring_write(ring, ref_and_mask); /* mask */
409 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
410 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
411 }
412
413 /**
414 * sdma_v3_0_ring_emit_fence - emit a fence on the DMA ring
415 *
416 * @ring: amdgpu ring pointer
417 * @fence: amdgpu fence object
418 *
419 * Add a DMA fence packet to the ring to write
420 * the fence seq number and DMA trap packet to generate
421 * an interrupt if needed (VI).
422 */
423 static void sdma_v3_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
424 unsigned flags)
425 {
426 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
427 /* write the fence */
428 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
429 amdgpu_ring_write(ring, lower_32_bits(addr));
430 amdgpu_ring_write(ring, upper_32_bits(addr));
431 amdgpu_ring_write(ring, lower_32_bits(seq));
432
433 /* optionally write high bits as well */
434 if (write64bit) {
435 addr += 4;
436 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
437 amdgpu_ring_write(ring, lower_32_bits(addr));
438 amdgpu_ring_write(ring, upper_32_bits(addr));
439 amdgpu_ring_write(ring, upper_32_bits(seq));
440 }
441
442 /* generate an interrupt */
443 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
444 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
445 }
446
447 /**
448 * sdma_v3_0_gfx_stop - stop the gfx async dma engines
449 *
450 * @adev: amdgpu_device pointer
451 *
452 * Stop the gfx async dma ring buffers (VI).
453 */
454 static void sdma_v3_0_gfx_stop(struct amdgpu_device *adev)
455 {
456 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
457 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
458 u32 rb_cntl, ib_cntl;
459 int i;
460
461 if ((adev->mman.buffer_funcs_ring == sdma0) ||
462 (adev->mman.buffer_funcs_ring == sdma1))
463 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
464
465 for (i = 0; i < adev->sdma.num_instances; i++) {
466 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
467 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
468 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
469 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
470 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
471 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
472 }
473 sdma0->ready = false;
474 sdma1->ready = false;
475 }
476
477 /**
478 * sdma_v3_0_rlc_stop - stop the compute async dma engines
479 *
480 * @adev: amdgpu_device pointer
481 *
482 * Stop the compute async dma queues (VI).
483 */
484 static void sdma_v3_0_rlc_stop(struct amdgpu_device *adev)
485 {
486 /* XXX todo */
487 }
488
489 /**
490 * sdma_v3_0_ctx_switch_enable - stop the async dma engines context switch
491 *
492 * @adev: amdgpu_device pointer
493 * @enable: enable/disable the DMA MEs context switch.
494 *
495 * Halt or unhalt the async dma engines context switch (VI).
496 */
497 static void sdma_v3_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
498 {
499 u32 f32_cntl;
500 int i;
501
502 for (i = 0; i < adev->sdma.num_instances; i++) {
503 f32_cntl = RREG32(mmSDMA0_CNTL + sdma_offsets[i]);
504 if (enable)
505 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
506 AUTO_CTXSW_ENABLE, 1);
507 else
508 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
509 AUTO_CTXSW_ENABLE, 0);
510 WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl);
511 }
512 }
513
514 /**
515 * sdma_v3_0_enable - stop the async dma engines
516 *
517 * @adev: amdgpu_device pointer
518 * @enable: enable/disable the DMA MEs.
519 *
520 * Halt or unhalt the async dma engines (VI).
521 */
522 static void sdma_v3_0_enable(struct amdgpu_device *adev, bool enable)
523 {
524 u32 f32_cntl;
525 int i;
526
527 if (enable == false) {
528 sdma_v3_0_gfx_stop(adev);
529 sdma_v3_0_rlc_stop(adev);
530 }
531
532 for (i = 0; i < adev->sdma.num_instances; i++) {
533 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
534 if (enable)
535 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0);
536 else
537 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
538 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl);
539 }
540 }
541
542 /**
543 * sdma_v3_0_gfx_resume - setup and start the async dma engines
544 *
545 * @adev: amdgpu_device pointer
546 *
547 * Set up the gfx DMA ring buffers and enable them (VI).
548 * Returns 0 for success, error for failure.
549 */
550 static int sdma_v3_0_gfx_resume(struct amdgpu_device *adev)
551 {
552 struct amdgpu_ring *ring;
553 u32 rb_cntl, ib_cntl;
554 u32 rb_bufsz;
555 u32 wb_offset;
556 u32 doorbell;
557 int i, j, r;
558
559 for (i = 0; i < adev->sdma.num_instances; i++) {
560 ring = &adev->sdma.instance[i].ring;
561 wb_offset = (ring->rptr_offs * 4);
562
563 mutex_lock(&adev->srbm_mutex);
564 for (j = 0; j < 16; j++) {
565 vi_srbm_select(adev, 0, 0, 0, j);
566 /* SDMA GFX */
567 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
568 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
569 }
570 vi_srbm_select(adev, 0, 0, 0, 0);
571 mutex_unlock(&adev->srbm_mutex);
572
573 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
574
575 /* Set ring buffer size in dwords */
576 rb_bufsz = order_base_2(ring->ring_size / 4);
577 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
578 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
579 #ifdef __BIG_ENDIAN
580 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
581 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
582 RPTR_WRITEBACK_SWAP_ENABLE, 1);
583 #endif
584 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
585
586 /* Initialize the ring buffer's read and write pointers */
587 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
588 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
589
590 /* set the wb address whether it's enabled or not */
591 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
592 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
593 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
594 lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
595
596 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
597
598 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
599 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
600
601 ring->wptr = 0;
602 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
603
604 doorbell = RREG32(mmSDMA0_GFX_DOORBELL + sdma_offsets[i]);
605
606 if (ring->use_doorbell) {
607 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL,
608 OFFSET, ring->doorbell_index);
609 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
610 } else {
611 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
612 }
613 WREG32(mmSDMA0_GFX_DOORBELL + sdma_offsets[i], doorbell);
614
615 /* enable DMA RB */
616 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
617 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
618
619 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
620 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
621 #ifdef __BIG_ENDIAN
622 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
623 #endif
624 /* enable DMA IBs */
625 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
626
627 ring->ready = true;
628
629 r = amdgpu_ring_test_ring(ring);
630 if (r) {
631 ring->ready = false;
632 return r;
633 }
634
635 if (adev->mman.buffer_funcs_ring == ring)
636 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size);
637 }
638
639 return 0;
640 }
641
642 /**
643 * sdma_v3_0_rlc_resume - setup and start the async dma engines
644 *
645 * @adev: amdgpu_device pointer
646 *
647 * Set up the compute DMA queues and enable them (VI).
648 * Returns 0 for success, error for failure.
649 */
650 static int sdma_v3_0_rlc_resume(struct amdgpu_device *adev)
651 {
652 /* XXX todo */
653 return 0;
654 }
655
656 /**
657 * sdma_v3_0_load_microcode - load the sDMA ME ucode
658 *
659 * @adev: amdgpu_device pointer
660 *
661 * Loads the sDMA0/1 ucode.
662 * Returns 0 for success, -EINVAL if the ucode is not available.
663 */
664 static int sdma_v3_0_load_microcode(struct amdgpu_device *adev)
665 {
666 const struct sdma_firmware_header_v1_0 *hdr;
667 const __le32 *fw_data;
668 u32 fw_size;
669 int i, j;
670
671 /* halt the MEs */
672 sdma_v3_0_enable(adev, false);
673
674 for (i = 0; i < adev->sdma.num_instances; i++) {
675 if (!adev->sdma.instance[i].fw)
676 return -EINVAL;
677 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
678 amdgpu_ucode_print_sdma_hdr(&hdr->header);
679 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
680 fw_data = (const __le32 *)
681 (adev->sdma.instance[i].fw->data +
682 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
683 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
684 for (j = 0; j < fw_size; j++)
685 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
686 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version);
687 }
688
689 return 0;
690 }
691
692 /**
693 * sdma_v3_0_start - setup and start the async dma engines
694 *
695 * @adev: amdgpu_device pointer
696 *
697 * Set up the DMA engines and enable them (VI).
698 * Returns 0 for success, error for failure.
699 */
700 static int sdma_v3_0_start(struct amdgpu_device *adev)
701 {
702 int r, i;
703
704 if (!adev->pp_enabled) {
705 if (!adev->firmware.smu_load) {
706 r = sdma_v3_0_load_microcode(adev);
707 if (r)
708 return r;
709 } else {
710 for (i = 0; i < adev->sdma.num_instances; i++) {
711 r = adev->smu.smumgr_funcs->check_fw_load_finish(adev,
712 (i == 0) ?
713 AMDGPU_UCODE_ID_SDMA0 :
714 AMDGPU_UCODE_ID_SDMA1);
715 if (r)
716 return -EINVAL;
717 }
718 }
719 }
720
721 /* unhalt the MEs */
722 sdma_v3_0_enable(adev, true);
723 /* enable sdma ring preemption */
724 sdma_v3_0_ctx_switch_enable(adev, true);
725
726 /* start the gfx rings and rlc compute queues */
727 r = sdma_v3_0_gfx_resume(adev);
728 if (r)
729 return r;
730 r = sdma_v3_0_rlc_resume(adev);
731 if (r)
732 return r;
733
734 return 0;
735 }
736
737 /**
738 * sdma_v3_0_ring_test_ring - simple async dma engine test
739 *
740 * @ring: amdgpu_ring structure holding ring information
741 *
742 * Test the DMA engine by writing using it to write an
743 * value to memory. (VI).
744 * Returns 0 for success, error for failure.
745 */
746 static int sdma_v3_0_ring_test_ring(struct amdgpu_ring *ring)
747 {
748 struct amdgpu_device *adev = ring->adev;
749 unsigned i;
750 unsigned index;
751 int r;
752 u32 tmp;
753 u64 gpu_addr;
754
755 r = amdgpu_wb_get(adev, &index);
756 if (r) {
757 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
758 return r;
759 }
760
761 gpu_addr = adev->wb.gpu_addr + (index * 4);
762 tmp = 0xCAFEDEAD;
763 adev->wb.wb[index] = cpu_to_le32(tmp);
764
765 r = amdgpu_ring_alloc(ring, 5);
766 if (r) {
767 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
768 amdgpu_wb_free(adev, index);
769 return r;
770 }
771
772 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
773 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
774 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
775 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
776 amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
777 amdgpu_ring_write(ring, 0xDEADBEEF);
778 amdgpu_ring_commit(ring);
779
780 for (i = 0; i < adev->usec_timeout; i++) {
781 tmp = le32_to_cpu(adev->wb.wb[index]);
782 if (tmp == 0xDEADBEEF)
783 break;
784 DRM_UDELAY(1);
785 }
786
787 if (i < adev->usec_timeout) {
788 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
789 } else {
790 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
791 ring->idx, tmp);
792 r = -EINVAL;
793 }
794 amdgpu_wb_free(adev, index);
795
796 return r;
797 }
798
799 /**
800 * sdma_v3_0_ring_test_ib - test an IB on the DMA engine
801 *
802 * @ring: amdgpu_ring structure holding ring information
803 *
804 * Test a simple IB in the DMA ring (VI).
805 * Returns 0 on success, error on failure.
806 */
807 static int sdma_v3_0_ring_test_ib(struct amdgpu_ring *ring)
808 {
809 struct amdgpu_device *adev = ring->adev;
810 struct amdgpu_ib ib;
811 struct fence *f = NULL;
812 unsigned i;
813 unsigned index;
814 int r;
815 u32 tmp = 0;
816 u64 gpu_addr;
817
818 r = amdgpu_wb_get(adev, &index);
819 if (r) {
820 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
821 return r;
822 }
823
824 gpu_addr = adev->wb.gpu_addr + (index * 4);
825 tmp = 0xCAFEDEAD;
826 adev->wb.wb[index] = cpu_to_le32(tmp);
827 memset(&ib, 0, sizeof(ib));
828 r = amdgpu_ib_get(ring, NULL, 256, &ib);
829 if (r) {
830 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
831 goto err0;
832 }
833
834 ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
835 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
836 ib.ptr[1] = lower_32_bits(gpu_addr);
837 ib.ptr[2] = upper_32_bits(gpu_addr);
838 ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1);
839 ib.ptr[4] = 0xDEADBEEF;
840 ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
841 ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
842 ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
843 ib.length_dw = 8;
844
845 r = amdgpu_sched_ib_submit_kernel_helper(adev, ring, &ib, 1, NULL,
846 AMDGPU_FENCE_OWNER_UNDEFINED,
847 &f);
848 if (r)
849 goto err1;
850
851 r = fence_wait(f, false);
852 if (r) {
853 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
854 goto err1;
855 }
856 for (i = 0; i < adev->usec_timeout; i++) {
857 tmp = le32_to_cpu(adev->wb.wb[index]);
858 if (tmp == 0xDEADBEEF)
859 break;
860 DRM_UDELAY(1);
861 }
862 if (i < adev->usec_timeout) {
863 DRM_INFO("ib test on ring %d succeeded in %u usecs\n",
864 ring->idx, i);
865 goto err1;
866 } else {
867 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
868 r = -EINVAL;
869 }
870 err1:
871 fence_put(f);
872 amdgpu_ib_free(adev, &ib);
873 err0:
874 amdgpu_wb_free(adev, index);
875 return r;
876 }
877
878 /**
879 * sdma_v3_0_vm_copy_pte - update PTEs by copying them from the GART
880 *
881 * @ib: indirect buffer to fill with commands
882 * @pe: addr of the page entry
883 * @src: src addr to copy from
884 * @count: number of page entries to update
885 *
886 * Update PTEs by copying them from the GART using sDMA (CIK).
887 */
888 static void sdma_v3_0_vm_copy_pte(struct amdgpu_ib *ib,
889 uint64_t pe, uint64_t src,
890 unsigned count)
891 {
892 while (count) {
893 unsigned bytes = count * 8;
894 if (bytes > 0x1FFFF8)
895 bytes = 0x1FFFF8;
896
897 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
898 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
899 ib->ptr[ib->length_dw++] = bytes;
900 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
901 ib->ptr[ib->length_dw++] = lower_32_bits(src);
902 ib->ptr[ib->length_dw++] = upper_32_bits(src);
903 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
904 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
905
906 pe += bytes;
907 src += bytes;
908 count -= bytes / 8;
909 }
910 }
911
912 /**
913 * sdma_v3_0_vm_write_pte - update PTEs by writing them manually
914 *
915 * @ib: indirect buffer to fill with commands
916 * @pe: addr of the page entry
917 * @addr: dst addr to write into pe
918 * @count: number of page entries to update
919 * @incr: increase next addr by incr bytes
920 * @flags: access flags
921 *
922 * Update PTEs by writing them manually using sDMA (CIK).
923 */
924 static void sdma_v3_0_vm_write_pte(struct amdgpu_ib *ib,
925 const dma_addr_t *pages_addr, uint64_t pe,
926 uint64_t addr, unsigned count,
927 uint32_t incr, uint32_t flags)
928 {
929 uint64_t value;
930 unsigned ndw;
931
932 while (count) {
933 ndw = count * 2;
934 if (ndw > 0xFFFFE)
935 ndw = 0xFFFFE;
936
937 /* for non-physically contiguous pages (system) */
938 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
939 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
940 ib->ptr[ib->length_dw++] = pe;
941 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
942 ib->ptr[ib->length_dw++] = ndw;
943 for (; ndw > 0; ndw -= 2, --count, pe += 8) {
944 value = amdgpu_vm_map_gart(pages_addr, addr);
945 addr += incr;
946 value |= flags;
947 ib->ptr[ib->length_dw++] = value;
948 ib->ptr[ib->length_dw++] = upper_32_bits(value);
949 }
950 }
951 }
952
953 /**
954 * sdma_v3_0_vm_set_pte_pde - update the page tables using sDMA
955 *
956 * @ib: indirect buffer to fill with commands
957 * @pe: addr of the page entry
958 * @addr: dst addr to write into pe
959 * @count: number of page entries to update
960 * @incr: increase next addr by incr bytes
961 * @flags: access flags
962 *
963 * Update the page tables using sDMA (CIK).
964 */
965 static void sdma_v3_0_vm_set_pte_pde(struct amdgpu_ib *ib,
966 uint64_t pe,
967 uint64_t addr, unsigned count,
968 uint32_t incr, uint32_t flags)
969 {
970 uint64_t value;
971 unsigned ndw;
972
973 while (count) {
974 ndw = count;
975 if (ndw > 0x7FFFF)
976 ndw = 0x7FFFF;
977
978 if (flags & AMDGPU_PTE_VALID)
979 value = addr;
980 else
981 value = 0;
982
983 /* for physically contiguous pages (vram) */
984 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE);
985 ib->ptr[ib->length_dw++] = pe; /* dst addr */
986 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
987 ib->ptr[ib->length_dw++] = flags; /* mask */
988 ib->ptr[ib->length_dw++] = 0;
989 ib->ptr[ib->length_dw++] = value; /* value */
990 ib->ptr[ib->length_dw++] = upper_32_bits(value);
991 ib->ptr[ib->length_dw++] = incr; /* increment size */
992 ib->ptr[ib->length_dw++] = 0;
993 ib->ptr[ib->length_dw++] = ndw; /* number of entries */
994
995 pe += ndw * 8;
996 addr += ndw * incr;
997 count -= ndw;
998 }
999 }
1000
1001 /**
1002 * sdma_v3_0_ring_pad_ib - pad the IB to the required number of dw
1003 *
1004 * @ib: indirect buffer to fill with padding
1005 *
1006 */
1007 static void sdma_v3_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1008 {
1009 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
1010 u32 pad_count;
1011 int i;
1012
1013 pad_count = (8 - (ib->length_dw & 0x7)) % 8;
1014 for (i = 0; i < pad_count; i++)
1015 if (sdma && sdma->burst_nop && (i == 0))
1016 ib->ptr[ib->length_dw++] =
1017 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1018 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1019 else
1020 ib->ptr[ib->length_dw++] =
1021 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1022 }
1023
1024 /**
1025 * sdma_v3_0_ring_emit_vm_flush - cik vm flush using sDMA
1026 *
1027 * @ring: amdgpu_ring pointer
1028 * @vm: amdgpu_vm pointer
1029 *
1030 * Update the page table base and flush the VM TLB
1031 * using sDMA (VI).
1032 */
1033 static void sdma_v3_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
1034 unsigned vm_id, uint64_t pd_addr)
1035 {
1036 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1037 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1038 if (vm_id < 8) {
1039 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id));
1040 } else {
1041 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8));
1042 }
1043 amdgpu_ring_write(ring, pd_addr >> 12);
1044
1045 /* flush TLB */
1046 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1047 SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1048 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
1049 amdgpu_ring_write(ring, 1 << vm_id);
1050
1051 /* wait for flush */
1052 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1053 SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1054 SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */
1055 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
1056 amdgpu_ring_write(ring, 0);
1057 amdgpu_ring_write(ring, 0); /* reference */
1058 amdgpu_ring_write(ring, 0); /* mask */
1059 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1060 SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
1061 }
1062
1063 static int sdma_v3_0_early_init(void *handle)
1064 {
1065 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1066
1067 switch (adev->asic_type) {
1068 case CHIP_STONEY:
1069 adev->sdma.num_instances = 1;
1070 break;
1071 default:
1072 adev->sdma.num_instances = SDMA_MAX_INSTANCE;
1073 break;
1074 }
1075
1076 sdma_v3_0_set_ring_funcs(adev);
1077 sdma_v3_0_set_buffer_funcs(adev);
1078 sdma_v3_0_set_vm_pte_funcs(adev);
1079 sdma_v3_0_set_irq_funcs(adev);
1080
1081 return 0;
1082 }
1083
1084 static int sdma_v3_0_sw_init(void *handle)
1085 {
1086 struct amdgpu_ring *ring;
1087 int r, i;
1088 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1089
1090 /* SDMA trap event */
1091 r = amdgpu_irq_add_id(adev, 224, &adev->sdma.trap_irq);
1092 if (r)
1093 return r;
1094
1095 /* SDMA Privileged inst */
1096 r = amdgpu_irq_add_id(adev, 241, &adev->sdma.illegal_inst_irq);
1097 if (r)
1098 return r;
1099
1100 /* SDMA Privileged inst */
1101 r = amdgpu_irq_add_id(adev, 247, &adev->sdma.illegal_inst_irq);
1102 if (r)
1103 return r;
1104
1105 r = sdma_v3_0_init_microcode(adev);
1106 if (r) {
1107 DRM_ERROR("Failed to load sdma firmware!\n");
1108 return r;
1109 }
1110
1111 for (i = 0; i < adev->sdma.num_instances; i++) {
1112 ring = &adev->sdma.instance[i].ring;
1113 ring->ring_obj = NULL;
1114 ring->use_doorbell = true;
1115 ring->doorbell_index = (i == 0) ?
1116 AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1;
1117
1118 sprintf(ring->name, "sdma%d", i);
1119 r = amdgpu_ring_init(adev, ring, 256 * 1024,
1120 SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 0xf,
1121 &adev->sdma.trap_irq,
1122 (i == 0) ?
1123 AMDGPU_SDMA_IRQ_TRAP0 : AMDGPU_SDMA_IRQ_TRAP1,
1124 AMDGPU_RING_TYPE_SDMA);
1125 if (r)
1126 return r;
1127 }
1128
1129 return r;
1130 }
1131
1132 static int sdma_v3_0_sw_fini(void *handle)
1133 {
1134 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1135 int i;
1136
1137 for (i = 0; i < adev->sdma.num_instances; i++)
1138 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1139
1140 return 0;
1141 }
1142
1143 static int sdma_v3_0_hw_init(void *handle)
1144 {
1145 int r;
1146 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1147
1148 sdma_v3_0_init_golden_registers(adev);
1149
1150 r = sdma_v3_0_start(adev);
1151 if (r)
1152 return r;
1153
1154 return r;
1155 }
1156
1157 static int sdma_v3_0_hw_fini(void *handle)
1158 {
1159 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1160
1161 sdma_v3_0_ctx_switch_enable(adev, false);
1162 sdma_v3_0_enable(adev, false);
1163
1164 return 0;
1165 }
1166
1167 static int sdma_v3_0_suspend(void *handle)
1168 {
1169 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1170
1171 return sdma_v3_0_hw_fini(adev);
1172 }
1173
1174 static int sdma_v3_0_resume(void *handle)
1175 {
1176 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1177
1178 return sdma_v3_0_hw_init(adev);
1179 }
1180
1181 static bool sdma_v3_0_is_idle(void *handle)
1182 {
1183 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1184 u32 tmp = RREG32(mmSRBM_STATUS2);
1185
1186 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
1187 SRBM_STATUS2__SDMA1_BUSY_MASK))
1188 return false;
1189
1190 return true;
1191 }
1192
1193 static int sdma_v3_0_wait_for_idle(void *handle)
1194 {
1195 unsigned i;
1196 u32 tmp;
1197 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1198
1199 for (i = 0; i < adev->usec_timeout; i++) {
1200 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1201 SRBM_STATUS2__SDMA1_BUSY_MASK);
1202
1203 if (!tmp)
1204 return 0;
1205 udelay(1);
1206 }
1207 return -ETIMEDOUT;
1208 }
1209
1210 static void sdma_v3_0_print_status(void *handle)
1211 {
1212 int i, j;
1213 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1214
1215 dev_info(adev->dev, "VI SDMA registers\n");
1216 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n",
1217 RREG32(mmSRBM_STATUS2));
1218 for (i = 0; i < adev->sdma.num_instances; i++) {
1219 dev_info(adev->dev, " SDMA%d_STATUS_REG=0x%08X\n",
1220 i, RREG32(mmSDMA0_STATUS_REG + sdma_offsets[i]));
1221 dev_info(adev->dev, " SDMA%d_F32_CNTL=0x%08X\n",
1222 i, RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]));
1223 dev_info(adev->dev, " SDMA%d_CNTL=0x%08X\n",
1224 i, RREG32(mmSDMA0_CNTL + sdma_offsets[i]));
1225 dev_info(adev->dev, " SDMA%d_SEM_WAIT_FAIL_TIMER_CNTL=0x%08X\n",
1226 i, RREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i]));
1227 dev_info(adev->dev, " SDMA%d_GFX_IB_CNTL=0x%08X\n",
1228 i, RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]));
1229 dev_info(adev->dev, " SDMA%d_GFX_RB_CNTL=0x%08X\n",
1230 i, RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]));
1231 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR=0x%08X\n",
1232 i, RREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i]));
1233 dev_info(adev->dev, " SDMA%d_GFX_RB_WPTR=0x%08X\n",
1234 i, RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i]));
1235 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_HI=0x%08X\n",
1236 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i]));
1237 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_LO=0x%08X\n",
1238 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i]));
1239 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE=0x%08X\n",
1240 i, RREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i]));
1241 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE_HI=0x%08X\n",
1242 i, RREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i]));
1243 dev_info(adev->dev, " SDMA%d_GFX_DOORBELL=0x%08X\n",
1244 i, RREG32(mmSDMA0_GFX_DOORBELL + sdma_offsets[i]));
1245 mutex_lock(&adev->srbm_mutex);
1246 for (j = 0; j < 16; j++) {
1247 vi_srbm_select(adev, 0, 0, 0, j);
1248 dev_info(adev->dev, " VM %d:\n", j);
1249 dev_info(adev->dev, " SDMA%d_GFX_VIRTUAL_ADDR=0x%08X\n",
1250 i, RREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i]));
1251 dev_info(adev->dev, " SDMA%d_GFX_APE1_CNTL=0x%08X\n",
1252 i, RREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i]));
1253 }
1254 vi_srbm_select(adev, 0, 0, 0, 0);
1255 mutex_unlock(&adev->srbm_mutex);
1256 }
1257 }
1258
1259 static int sdma_v3_0_soft_reset(void *handle)
1260 {
1261 u32 srbm_soft_reset = 0;
1262 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1263 u32 tmp = RREG32(mmSRBM_STATUS2);
1264
1265 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1266 /* sdma0 */
1267 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1268 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1269 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1270 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1271 }
1272 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1273 /* sdma1 */
1274 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1275 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1276 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1277 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1278 }
1279
1280 if (srbm_soft_reset) {
1281 sdma_v3_0_print_status((void *)adev);
1282
1283 tmp = RREG32(mmSRBM_SOFT_RESET);
1284 tmp |= srbm_soft_reset;
1285 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1286 WREG32(mmSRBM_SOFT_RESET, tmp);
1287 tmp = RREG32(mmSRBM_SOFT_RESET);
1288
1289 udelay(50);
1290
1291 tmp &= ~srbm_soft_reset;
1292 WREG32(mmSRBM_SOFT_RESET, tmp);
1293 tmp = RREG32(mmSRBM_SOFT_RESET);
1294
1295 /* Wait a little for things to settle down */
1296 udelay(50);
1297
1298 sdma_v3_0_print_status((void *)adev);
1299 }
1300
1301 return 0;
1302 }
1303
1304 static int sdma_v3_0_set_trap_irq_state(struct amdgpu_device *adev,
1305 struct amdgpu_irq_src *source,
1306 unsigned type,
1307 enum amdgpu_interrupt_state state)
1308 {
1309 u32 sdma_cntl;
1310
1311 switch (type) {
1312 case AMDGPU_SDMA_IRQ_TRAP0:
1313 switch (state) {
1314 case AMDGPU_IRQ_STATE_DISABLE:
1315 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1316 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1317 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1318 break;
1319 case AMDGPU_IRQ_STATE_ENABLE:
1320 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1321 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1322 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1323 break;
1324 default:
1325 break;
1326 }
1327 break;
1328 case AMDGPU_SDMA_IRQ_TRAP1:
1329 switch (state) {
1330 case AMDGPU_IRQ_STATE_DISABLE:
1331 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1332 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1333 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1334 break;
1335 case AMDGPU_IRQ_STATE_ENABLE:
1336 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1337 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1338 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1339 break;
1340 default:
1341 break;
1342 }
1343 break;
1344 default:
1345 break;
1346 }
1347 return 0;
1348 }
1349
1350 static int sdma_v3_0_process_trap_irq(struct amdgpu_device *adev,
1351 struct amdgpu_irq_src *source,
1352 struct amdgpu_iv_entry *entry)
1353 {
1354 u8 instance_id, queue_id;
1355
1356 instance_id = (entry->ring_id & 0x3) >> 0;
1357 queue_id = (entry->ring_id & 0xc) >> 2;
1358 DRM_DEBUG("IH: SDMA trap\n");
1359 switch (instance_id) {
1360 case 0:
1361 switch (queue_id) {
1362 case 0:
1363 amdgpu_fence_process(&adev->sdma.instance[0].ring);
1364 break;
1365 case 1:
1366 /* XXX compute */
1367 break;
1368 case 2:
1369 /* XXX compute */
1370 break;
1371 }
1372 break;
1373 case 1:
1374 switch (queue_id) {
1375 case 0:
1376 amdgpu_fence_process(&adev->sdma.instance[1].ring);
1377 break;
1378 case 1:
1379 /* XXX compute */
1380 break;
1381 case 2:
1382 /* XXX compute */
1383 break;
1384 }
1385 break;
1386 }
1387 return 0;
1388 }
1389
1390 static int sdma_v3_0_process_illegal_inst_irq(struct amdgpu_device *adev,
1391 struct amdgpu_irq_src *source,
1392 struct amdgpu_iv_entry *entry)
1393 {
1394 DRM_ERROR("Illegal instruction in SDMA command stream\n");
1395 schedule_work(&adev->reset_work);
1396 return 0;
1397 }
1398
1399 static void fiji_update_sdma_medium_grain_clock_gating(
1400 struct amdgpu_device *adev,
1401 bool enable)
1402 {
1403 uint32_t temp, data;
1404
1405 if (enable) {
1406 temp = data = RREG32(mmSDMA0_CLK_CTRL);
1407 data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1408 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1409 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1410 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1411 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1412 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1413 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1414 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1415 if (data != temp)
1416 WREG32(mmSDMA0_CLK_CTRL, data);
1417
1418 temp = data = RREG32(mmSDMA1_CLK_CTRL);
1419 data &= ~(SDMA1_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1420 SDMA1_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1421 SDMA1_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1422 SDMA1_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1423 SDMA1_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1424 SDMA1_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1425 SDMA1_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1426 SDMA1_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1427
1428 if (data != temp)
1429 WREG32(mmSDMA1_CLK_CTRL, data);
1430 } else {
1431 temp = data = RREG32(mmSDMA0_CLK_CTRL);
1432 data |= SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1433 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1434 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1435 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1436 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1437 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1438 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1439 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK;
1440
1441 if (data != temp)
1442 WREG32(mmSDMA0_CLK_CTRL, data);
1443
1444 temp = data = RREG32(mmSDMA1_CLK_CTRL);
1445 data |= SDMA1_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1446 SDMA1_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1447 SDMA1_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1448 SDMA1_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1449 SDMA1_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1450 SDMA1_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1451 SDMA1_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1452 SDMA1_CLK_CTRL__SOFT_OVERRIDE0_MASK;
1453
1454 if (data != temp)
1455 WREG32(mmSDMA1_CLK_CTRL, data);
1456 }
1457 }
1458
1459 static void fiji_update_sdma_medium_grain_light_sleep(
1460 struct amdgpu_device *adev,
1461 bool enable)
1462 {
1463 uint32_t temp, data;
1464
1465 if (enable) {
1466 temp = data = RREG32(mmSDMA0_POWER_CNTL);
1467 data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1468
1469 if (temp != data)
1470 WREG32(mmSDMA0_POWER_CNTL, data);
1471
1472 temp = data = RREG32(mmSDMA1_POWER_CNTL);
1473 data |= SDMA1_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1474
1475 if (temp != data)
1476 WREG32(mmSDMA1_POWER_CNTL, data);
1477 } else {
1478 temp = data = RREG32(mmSDMA0_POWER_CNTL);
1479 data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1480
1481 if (temp != data)
1482 WREG32(mmSDMA0_POWER_CNTL, data);
1483
1484 temp = data = RREG32(mmSDMA1_POWER_CNTL);
1485 data &= ~SDMA1_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1486
1487 if (temp != data)
1488 WREG32(mmSDMA1_POWER_CNTL, data);
1489 }
1490 }
1491
1492 static int sdma_v3_0_set_clockgating_state(void *handle,
1493 enum amd_clockgating_state state)
1494 {
1495 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1496
1497 switch (adev->asic_type) {
1498 case CHIP_FIJI:
1499 fiji_update_sdma_medium_grain_clock_gating(adev,
1500 state == AMD_CG_STATE_GATE ? true : false);
1501 fiji_update_sdma_medium_grain_light_sleep(adev,
1502 state == AMD_CG_STATE_GATE ? true : false);
1503 break;
1504 default:
1505 break;
1506 }
1507 return 0;
1508 }
1509
1510 static int sdma_v3_0_set_powergating_state(void *handle,
1511 enum amd_powergating_state state)
1512 {
1513 return 0;
1514 }
1515
1516 const struct amd_ip_funcs sdma_v3_0_ip_funcs = {
1517 .early_init = sdma_v3_0_early_init,
1518 .late_init = NULL,
1519 .sw_init = sdma_v3_0_sw_init,
1520 .sw_fini = sdma_v3_0_sw_fini,
1521 .hw_init = sdma_v3_0_hw_init,
1522 .hw_fini = sdma_v3_0_hw_fini,
1523 .suspend = sdma_v3_0_suspend,
1524 .resume = sdma_v3_0_resume,
1525 .is_idle = sdma_v3_0_is_idle,
1526 .wait_for_idle = sdma_v3_0_wait_for_idle,
1527 .soft_reset = sdma_v3_0_soft_reset,
1528 .print_status = sdma_v3_0_print_status,
1529 .set_clockgating_state = sdma_v3_0_set_clockgating_state,
1530 .set_powergating_state = sdma_v3_0_set_powergating_state,
1531 };
1532
1533 static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = {
1534 .get_rptr = sdma_v3_0_ring_get_rptr,
1535 .get_wptr = sdma_v3_0_ring_get_wptr,
1536 .set_wptr = sdma_v3_0_ring_set_wptr,
1537 .parse_cs = NULL,
1538 .emit_ib = sdma_v3_0_ring_emit_ib,
1539 .emit_fence = sdma_v3_0_ring_emit_fence,
1540 .emit_vm_flush = sdma_v3_0_ring_emit_vm_flush,
1541 .emit_hdp_flush = sdma_v3_0_ring_emit_hdp_flush,
1542 .test_ring = sdma_v3_0_ring_test_ring,
1543 .test_ib = sdma_v3_0_ring_test_ib,
1544 .insert_nop = sdma_v3_0_ring_insert_nop,
1545 .pad_ib = sdma_v3_0_ring_pad_ib,
1546 };
1547
1548 static void sdma_v3_0_set_ring_funcs(struct amdgpu_device *adev)
1549 {
1550 int i;
1551
1552 for (i = 0; i < adev->sdma.num_instances; i++)
1553 adev->sdma.instance[i].ring.funcs = &sdma_v3_0_ring_funcs;
1554 }
1555
1556 static const struct amdgpu_irq_src_funcs sdma_v3_0_trap_irq_funcs = {
1557 .set = sdma_v3_0_set_trap_irq_state,
1558 .process = sdma_v3_0_process_trap_irq,
1559 };
1560
1561 static const struct amdgpu_irq_src_funcs sdma_v3_0_illegal_inst_irq_funcs = {
1562 .process = sdma_v3_0_process_illegal_inst_irq,
1563 };
1564
1565 static void sdma_v3_0_set_irq_funcs(struct amdgpu_device *adev)
1566 {
1567 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1568 adev->sdma.trap_irq.funcs = &sdma_v3_0_trap_irq_funcs;
1569 adev->sdma.illegal_inst_irq.funcs = &sdma_v3_0_illegal_inst_irq_funcs;
1570 }
1571
1572 /**
1573 * sdma_v3_0_emit_copy_buffer - copy buffer using the sDMA engine
1574 *
1575 * @ring: amdgpu_ring structure holding ring information
1576 * @src_offset: src GPU address
1577 * @dst_offset: dst GPU address
1578 * @byte_count: number of bytes to xfer
1579 *
1580 * Copy GPU buffers using the DMA engine (VI).
1581 * Used by the amdgpu ttm implementation to move pages if
1582 * registered as the asic copy callback.
1583 */
1584 static void sdma_v3_0_emit_copy_buffer(struct amdgpu_ib *ib,
1585 uint64_t src_offset,
1586 uint64_t dst_offset,
1587 uint32_t byte_count)
1588 {
1589 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1590 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1591 ib->ptr[ib->length_dw++] = byte_count;
1592 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1593 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1594 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1595 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1596 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1597 }
1598
1599 /**
1600 * sdma_v3_0_emit_fill_buffer - fill buffer using the sDMA engine
1601 *
1602 * @ring: amdgpu_ring structure holding ring information
1603 * @src_data: value to write to buffer
1604 * @dst_offset: dst GPU address
1605 * @byte_count: number of bytes to xfer
1606 *
1607 * Fill GPU buffers using the DMA engine (VI).
1608 */
1609 static void sdma_v3_0_emit_fill_buffer(struct amdgpu_ib *ib,
1610 uint32_t src_data,
1611 uint64_t dst_offset,
1612 uint32_t byte_count)
1613 {
1614 ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1615 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1616 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1617 ib->ptr[ib->length_dw++] = src_data;
1618 ib->ptr[ib->length_dw++] = byte_count;
1619 }
1620
1621 static const struct amdgpu_buffer_funcs sdma_v3_0_buffer_funcs = {
1622 .copy_max_bytes = 0x1fffff,
1623 .copy_num_dw = 7,
1624 .emit_copy_buffer = sdma_v3_0_emit_copy_buffer,
1625
1626 .fill_max_bytes = 0x1fffff,
1627 .fill_num_dw = 5,
1628 .emit_fill_buffer = sdma_v3_0_emit_fill_buffer,
1629 };
1630
1631 static void sdma_v3_0_set_buffer_funcs(struct amdgpu_device *adev)
1632 {
1633 if (adev->mman.buffer_funcs == NULL) {
1634 adev->mman.buffer_funcs = &sdma_v3_0_buffer_funcs;
1635 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1636 }
1637 }
1638
1639 static const struct amdgpu_vm_pte_funcs sdma_v3_0_vm_pte_funcs = {
1640 .copy_pte = sdma_v3_0_vm_copy_pte,
1641 .write_pte = sdma_v3_0_vm_write_pte,
1642 .set_pte_pde = sdma_v3_0_vm_set_pte_pde,
1643 };
1644
1645 static void sdma_v3_0_set_vm_pte_funcs(struct amdgpu_device *adev)
1646 {
1647 if (adev->vm_manager.vm_pte_funcs == NULL) {
1648 adev->vm_manager.vm_pte_funcs = &sdma_v3_0_vm_pte_funcs;
1649 adev->vm_manager.vm_pte_funcs_ring = &adev->sdma.instance[0].ring;
1650 adev->vm_manager.vm_pte_funcs_ring->is_pte_ring = true;
1651 }
1652 }
Linux kernel - Deliverables
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