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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik_sdma.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/cik_sdma.c1408
1 files changed, 1408 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
new file mode 100644
index 000000000000..15df46c93f0a
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -0,0 +1,1408 @@
1/*
2 * Copyright 2013 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 "cikd.h"
30#include "cik.h"
31
32#include "bif/bif_4_1_d.h"
33#include "bif/bif_4_1_sh_mask.h"
34
35#include "gca/gfx_7_2_d.h"
36#include "gca/gfx_7_2_enum.h"
37#include "gca/gfx_7_2_sh_mask.h"
38
39#include "gmc/gmc_7_1_d.h"
40#include "gmc/gmc_7_1_sh_mask.h"
41
42#include "oss/oss_2_0_d.h"
43#include "oss/oss_2_0_sh_mask.h"
44
45static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
46{
47 SDMA0_REGISTER_OFFSET,
48 SDMA1_REGISTER_OFFSET
49};
50
51static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev);
52static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev);
53static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev);
54static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev);
55
56MODULE_FIRMWARE("radeon/bonaire_sdma.bin");
57MODULE_FIRMWARE("radeon/bonaire_sdma1.bin");
58MODULE_FIRMWARE("radeon/hawaii_sdma.bin");
59MODULE_FIRMWARE("radeon/hawaii_sdma1.bin");
60MODULE_FIRMWARE("radeon/kaveri_sdma.bin");
61MODULE_FIRMWARE("radeon/kaveri_sdma1.bin");
62MODULE_FIRMWARE("radeon/kabini_sdma.bin");
63MODULE_FIRMWARE("radeon/kabini_sdma1.bin");
64MODULE_FIRMWARE("radeon/mullins_sdma.bin");
65MODULE_FIRMWARE("radeon/mullins_sdma1.bin");
66
67u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev);
68
69/*
70 * sDMA - System DMA
71 * Starting with CIK, the GPU has new asynchronous
72 * DMA engines. These engines are used for compute
73 * and gfx. There are two DMA engines (SDMA0, SDMA1)
74 * and each one supports 1 ring buffer used for gfx
75 * and 2 queues used for compute.
76 *
77 * The programming model is very similar to the CP
78 * (ring buffer, IBs, etc.), but sDMA has it's own
79 * packet format that is different from the PM4 format
80 * used by the CP. sDMA supports copying data, writing
81 * embedded data, solid fills, and a number of other
82 * things. It also has support for tiling/detiling of
83 * buffers.
84 */
85
86/**
87 * cik_sdma_init_microcode - load ucode images from disk
88 *
89 * @adev: amdgpu_device pointer
90 *
91 * Use the firmware interface to load the ucode images into
92 * the driver (not loaded into hw).
93 * Returns 0 on success, error on failure.
94 */
95static int cik_sdma_init_microcode(struct amdgpu_device *adev)
96{
97 const char *chip_name;
98 char fw_name[30];
99 int err, i;
100
101 DRM_DEBUG("\n");
102
103 switch (adev->asic_type) {
104 case CHIP_BONAIRE:
105 chip_name = "bonaire";
106 break;
107 case CHIP_HAWAII:
108 chip_name = "hawaii";
109 break;
110 case CHIP_KAVERI:
111 chip_name = "kaveri";
112 break;
113 case CHIP_KABINI:
114 chip_name = "kabini";
115 break;
116 case CHIP_MULLINS:
117 chip_name = "mullins";
118 break;
119 default: BUG();
120 }
121
122 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
123 if (i == 0)
124 snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma.bin", chip_name);
125 else
126 snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma1.bin", chip_name);
127 err = request_firmware(&adev->sdma[i].fw, fw_name, adev->dev);
128 if (err)
129 goto out;
130 err = amdgpu_ucode_validate(adev->sdma[i].fw);
131 }
132out:
133 if (err) {
134 printk(KERN_ERR
135 "cik_sdma: Failed to load firmware \"%s\"\n",
136 fw_name);
137 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
138 release_firmware(adev->sdma[i].fw);
139 adev->sdma[i].fw = NULL;
140 }
141 }
142 return err;
143}
144
145/**
146 * cik_sdma_ring_get_rptr - get the current read pointer
147 *
148 * @ring: amdgpu ring pointer
149 *
150 * Get the current rptr from the hardware (CIK+).
151 */
152static uint32_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring)
153{
154 u32 rptr;
155
156 rptr = ring->adev->wb.wb[ring->rptr_offs];
157
158 return (rptr & 0x3fffc) >> 2;
159}
160
161/**
162 * cik_sdma_ring_get_wptr - get the current write pointer
163 *
164 * @ring: amdgpu ring pointer
165 *
166 * Get the current wptr from the hardware (CIK+).
167 */
168static uint32_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring)
169{
170 struct amdgpu_device *adev = ring->adev;
171 u32 me = (ring == &adev->sdma[0].ring) ? 0 : 1;
172
173 return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) & 0x3fffc) >> 2;
174}
175
176/**
177 * cik_sdma_ring_set_wptr - commit the write pointer
178 *
179 * @ring: amdgpu ring pointer
180 *
181 * Write the wptr back to the hardware (CIK+).
182 */
183static void cik_sdma_ring_set_wptr(struct amdgpu_ring *ring)
184{
185 struct amdgpu_device *adev = ring->adev;
186 u32 me = (ring == &adev->sdma[0].ring) ? 0 : 1;
187
188 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], (ring->wptr << 2) & 0x3fffc);
189}
190
191/**
192 * cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine
193 *
194 * @ring: amdgpu ring pointer
195 * @ib: IB object to schedule
196 *
197 * Schedule an IB in the DMA ring (CIK).
198 */
199static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring,
200 struct amdgpu_ib *ib)
201{
202 u32 extra_bits = (ib->vm ? ib->vm->ids[ring->idx].id : 0) & 0xf;
203 u32 next_rptr = ring->wptr + 5;
204
205 while ((next_rptr & 7) != 4)
206 next_rptr++;
207
208 next_rptr += 4;
209 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
210 amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
211 amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
212 amdgpu_ring_write(ring, 1); /* number of DWs to follow */
213 amdgpu_ring_write(ring, next_rptr);
214
215 /* IB packet must end on a 8 DW boundary */
216 while ((ring->wptr & 7) != 4)
217 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0));
218 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
219 amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
220 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
221 amdgpu_ring_write(ring, ib->length_dw);
222
223}
224
225/**
226 * cik_sdma_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
227 *
228 * @ring: amdgpu ring pointer
229 *
230 * Emit an hdp flush packet on the requested DMA ring.
231 */
232static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring)
233{
234 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
235 SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
236 u32 ref_and_mask;
237
238 if (ring == &ring->adev->sdma[0].ring)
239 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK;
240 else
241 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK;
242
243 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
244 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
245 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
246 amdgpu_ring_write(ring, ref_and_mask); /* reference */
247 amdgpu_ring_write(ring, ref_and_mask); /* mask */
248 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
249}
250
251/**
252 * cik_sdma_ring_emit_fence - emit a fence on the DMA ring
253 *
254 * @ring: amdgpu ring pointer
255 * @fence: amdgpu fence object
256 *
257 * Add a DMA fence packet to the ring to write
258 * the fence seq number and DMA trap packet to generate
259 * an interrupt if needed (CIK).
260 */
261static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
262 unsigned flags)
263{
264 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
265 /* write the fence */
266 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
267 amdgpu_ring_write(ring, lower_32_bits(addr));
268 amdgpu_ring_write(ring, upper_32_bits(addr));
269 amdgpu_ring_write(ring, lower_32_bits(seq));
270
271 /* optionally write high bits as well */
272 if (write64bit) {
273 addr += 4;
274 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
275 amdgpu_ring_write(ring, lower_32_bits(addr));
276 amdgpu_ring_write(ring, upper_32_bits(addr));
277 amdgpu_ring_write(ring, upper_32_bits(seq));
278 }
279
280 /* generate an interrupt */
281 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
282}
283
284/**
285 * cik_sdma_ring_emit_semaphore - emit a semaphore on the dma ring
286 *
287 * @ring: amdgpu_ring structure holding ring information
288 * @semaphore: amdgpu semaphore object
289 * @emit_wait: wait or signal semaphore
290 *
291 * Add a DMA semaphore packet to the ring wait on or signal
292 * other rings (CIK).
293 */
294static bool cik_sdma_ring_emit_semaphore(struct amdgpu_ring *ring,
295 struct amdgpu_semaphore *semaphore,
296 bool emit_wait)
297{
298 u64 addr = semaphore->gpu_addr;
299 u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S;
300
301 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits));
302 amdgpu_ring_write(ring, addr & 0xfffffff8);
303 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
304
305 return true;
306}
307
308/**
309 * cik_sdma_gfx_stop - stop the gfx async dma engines
310 *
311 * @adev: amdgpu_device pointer
312 *
313 * Stop the gfx async dma ring buffers (CIK).
314 */
315static void cik_sdma_gfx_stop(struct amdgpu_device *adev)
316{
317 struct amdgpu_ring *sdma0 = &adev->sdma[0].ring;
318 struct amdgpu_ring *sdma1 = &adev->sdma[1].ring;
319 u32 rb_cntl;
320 int i;
321
322 if ((adev->mman.buffer_funcs_ring == sdma0) ||
323 (adev->mman.buffer_funcs_ring == sdma1))
324 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
325
326 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
327 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
328 rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK;
329 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
330 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0);
331 }
332 sdma0->ready = false;
333 sdma1->ready = false;
334}
335
336/**
337 * cik_sdma_rlc_stop - stop the compute async dma engines
338 *
339 * @adev: amdgpu_device pointer
340 *
341 * Stop the compute async dma queues (CIK).
342 */
343static void cik_sdma_rlc_stop(struct amdgpu_device *adev)
344{
345 /* XXX todo */
346}
347
348/**
349 * cik_sdma_enable - stop the async dma engines
350 *
351 * @adev: amdgpu_device pointer
352 * @enable: enable/disable the DMA MEs.
353 *
354 * Halt or unhalt the async dma engines (CIK).
355 */
356static void cik_sdma_enable(struct amdgpu_device *adev, bool enable)
357{
358 u32 me_cntl;
359 int i;
360
361 if (enable == false) {
362 cik_sdma_gfx_stop(adev);
363 cik_sdma_rlc_stop(adev);
364 }
365
366 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
367 me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
368 if (enable)
369 me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK;
370 else
371 me_cntl |= SDMA0_F32_CNTL__HALT_MASK;
372 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl);
373 }
374}
375
376/**
377 * cik_sdma_gfx_resume - setup and start the async dma engines
378 *
379 * @adev: amdgpu_device pointer
380 *
381 * Set up the gfx DMA ring buffers and enable them (CIK).
382 * Returns 0 for success, error for failure.
383 */
384static int cik_sdma_gfx_resume(struct amdgpu_device *adev)
385{
386 struct amdgpu_ring *ring;
387 u32 rb_cntl, ib_cntl;
388 u32 rb_bufsz;
389 u32 wb_offset;
390 int i, j, r;
391
392 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
393 ring = &adev->sdma[i].ring;
394 wb_offset = (ring->rptr_offs * 4);
395
396 mutex_lock(&adev->srbm_mutex);
397 for (j = 0; j < 16; j++) {
398 cik_srbm_select(adev, 0, 0, 0, j);
399 /* SDMA GFX */
400 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
401 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
402 /* XXX SDMA RLC - todo */
403 }
404 cik_srbm_select(adev, 0, 0, 0, 0);
405 mutex_unlock(&adev->srbm_mutex);
406
407 WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0);
408 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
409
410 /* Set ring buffer size in dwords */
411 rb_bufsz = order_base_2(ring->ring_size / 4);
412 rb_cntl = rb_bufsz << 1;
413#ifdef __BIG_ENDIAN
414 rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK |
415 SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK;
416#endif
417 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
418
419 /* Initialize the ring buffer's read and write pointers */
420 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
421 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
422
423 /* set the wb address whether it's enabled or not */
424 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
425 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
426 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
427 ((adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
428
429 rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK;
430
431 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
432 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
433
434 ring->wptr = 0;
435 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
436
437 /* enable DMA RB */
438 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i],
439 rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK);
440
441 ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK;
442#ifdef __BIG_ENDIAN
443 ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK;
444#endif
445 /* enable DMA IBs */
446 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
447
448 ring->ready = true;
449
450 r = amdgpu_ring_test_ring(ring);
451 if (r) {
452 ring->ready = false;
453 return r;
454 }
455
456 if (adev->mman.buffer_funcs_ring == ring)
457 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size);
458 }
459
460 return 0;
461}
462
463/**
464 * cik_sdma_rlc_resume - setup and start the async dma engines
465 *
466 * @adev: amdgpu_device pointer
467 *
468 * Set up the compute DMA queues and enable them (CIK).
469 * Returns 0 for success, error for failure.
470 */
471static int cik_sdma_rlc_resume(struct amdgpu_device *adev)
472{
473 /* XXX todo */
474 return 0;
475}
476
477/**
478 * cik_sdma_load_microcode - load the sDMA ME ucode
479 *
480 * @adev: amdgpu_device pointer
481 *
482 * Loads the sDMA0/1 ucode.
483 * Returns 0 for success, -EINVAL if the ucode is not available.
484 */
485static int cik_sdma_load_microcode(struct amdgpu_device *adev)
486{
487 const struct sdma_firmware_header_v1_0 *hdr;
488 const __le32 *fw_data;
489 u32 fw_size;
490 int i, j;
491
492 if (!adev->sdma[0].fw || !adev->sdma[1].fw)
493 return -EINVAL;
494
495 /* halt the MEs */
496 cik_sdma_enable(adev, false);
497
498 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
499 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma[i].fw->data;
500 amdgpu_ucode_print_sdma_hdr(&hdr->header);
501 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
502 adev->sdma[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
503 adev->sdma[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
504 fw_data = (const __le32 *)
505 (adev->sdma[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
506 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
507 for (j = 0; j < fw_size; j++)
508 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
509 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma[i].fw_version);
510 }
511
512 return 0;
513}
514
515/**
516 * cik_sdma_start - setup and start the async dma engines
517 *
518 * @adev: amdgpu_device pointer
519 *
520 * Set up the DMA engines and enable them (CIK).
521 * Returns 0 for success, error for failure.
522 */
523static int cik_sdma_start(struct amdgpu_device *adev)
524{
525 int r;
526
527 r = cik_sdma_load_microcode(adev);
528 if (r)
529 return r;
530
531 /* unhalt the MEs */
532 cik_sdma_enable(adev, true);
533
534 /* start the gfx rings and rlc compute queues */
535 r = cik_sdma_gfx_resume(adev);
536 if (r)
537 return r;
538 r = cik_sdma_rlc_resume(adev);
539 if (r)
540 return r;
541
542 return 0;
543}
544
545/**
546 * cik_sdma_ring_test_ring - simple async dma engine test
547 *
548 * @ring: amdgpu_ring structure holding ring information
549 *
550 * Test the DMA engine by writing using it to write an
551 * value to memory. (CIK).
552 * Returns 0 for success, error for failure.
553 */
554static int cik_sdma_ring_test_ring(struct amdgpu_ring *ring)
555{
556 struct amdgpu_device *adev = ring->adev;
557 unsigned i;
558 unsigned index;
559 int r;
560 u32 tmp;
561 u64 gpu_addr;
562
563 r = amdgpu_wb_get(adev, &index);
564 if (r) {
565 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
566 return r;
567 }
568
569 gpu_addr = adev->wb.gpu_addr + (index * 4);
570 tmp = 0xCAFEDEAD;
571 adev->wb.wb[index] = cpu_to_le32(tmp);
572
573 r = amdgpu_ring_lock(ring, 5);
574 if (r) {
575 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
576 amdgpu_wb_free(adev, index);
577 return r;
578 }
579 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
580 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
581 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
582 amdgpu_ring_write(ring, 1); /* number of DWs to follow */
583 amdgpu_ring_write(ring, 0xDEADBEEF);
584 amdgpu_ring_unlock_commit(ring);
585
586 for (i = 0; i < adev->usec_timeout; i++) {
587 tmp = le32_to_cpu(adev->wb.wb[index]);
588 if (tmp == 0xDEADBEEF)
589 break;
590 DRM_UDELAY(1);
591 }
592
593 if (i < adev->usec_timeout) {
594 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
595 } else {
596 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
597 ring->idx, tmp);
598 r = -EINVAL;
599 }
600 amdgpu_wb_free(adev, index);
601
602 return r;
603}
604
605/**
606 * cik_sdma_ring_test_ib - test an IB on the DMA engine
607 *
608 * @ring: amdgpu_ring structure holding ring information
609 *
610 * Test a simple IB in the DMA ring (CIK).
611 * Returns 0 on success, error on failure.
612 */
613static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring)
614{
615 struct amdgpu_device *adev = ring->adev;
616 struct amdgpu_ib ib;
617 unsigned i;
618 unsigned index;
619 int r;
620 u32 tmp = 0;
621 u64 gpu_addr;
622
623 r = amdgpu_wb_get(adev, &index);
624 if (r) {
625 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
626 return r;
627 }
628
629 gpu_addr = adev->wb.gpu_addr + (index * 4);
630 tmp = 0xCAFEDEAD;
631 adev->wb.wb[index] = cpu_to_le32(tmp);
632
633 r = amdgpu_ib_get(ring, NULL, 256, &ib);
634 if (r) {
635 amdgpu_wb_free(adev, index);
636 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
637 return r;
638 }
639
640 ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
641 ib.ptr[1] = lower_32_bits(gpu_addr);
642 ib.ptr[2] = upper_32_bits(gpu_addr);
643 ib.ptr[3] = 1;
644 ib.ptr[4] = 0xDEADBEEF;
645 ib.length_dw = 5;
646
647 r = amdgpu_ib_schedule(adev, 1, &ib, AMDGPU_FENCE_OWNER_UNDEFINED);
648 if (r) {
649 amdgpu_ib_free(adev, &ib);
650 amdgpu_wb_free(adev, index);
651 DRM_ERROR("amdgpu: failed to schedule ib (%d).\n", r);
652 return r;
653 }
654 r = amdgpu_fence_wait(ib.fence, false);
655 if (r) {
656 amdgpu_ib_free(adev, &ib);
657 amdgpu_wb_free(adev, index);
658 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
659 return r;
660 }
661 for (i = 0; i < adev->usec_timeout; i++) {
662 tmp = le32_to_cpu(adev->wb.wb[index]);
663 if (tmp == 0xDEADBEEF)
664 break;
665 DRM_UDELAY(1);
666 }
667 if (i < adev->usec_timeout) {
668 DRM_INFO("ib test on ring %d succeeded in %u usecs\n",
669 ib.fence->ring->idx, i);
670 } else {
671 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
672 r = -EINVAL;
673 }
674 amdgpu_ib_free(adev, &ib);
675 amdgpu_wb_free(adev, index);
676 return r;
677}
678
679/**
680 * cik_sdma_vm_copy_pages - update PTEs by copying them from the GART
681 *
682 * @ib: indirect buffer to fill with commands
683 * @pe: addr of the page entry
684 * @src: src addr to copy from
685 * @count: number of page entries to update
686 *
687 * Update PTEs by copying them from the GART using sDMA (CIK).
688 */
689static void cik_sdma_vm_copy_pte(struct amdgpu_ib *ib,
690 uint64_t pe, uint64_t src,
691 unsigned count)
692{
693 while (count) {
694 unsigned bytes = count * 8;
695 if (bytes > 0x1FFFF8)
696 bytes = 0x1FFFF8;
697
698 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY,
699 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
700 ib->ptr[ib->length_dw++] = bytes;
701 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
702 ib->ptr[ib->length_dw++] = lower_32_bits(src);
703 ib->ptr[ib->length_dw++] = upper_32_bits(src);
704 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
705 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
706
707 pe += bytes;
708 src += bytes;
709 count -= bytes / 8;
710 }
711}
712
713/**
714 * cik_sdma_vm_write_pages - update PTEs by writing them manually
715 *
716 * @ib: indirect buffer to fill with commands
717 * @pe: addr of the page entry
718 * @addr: dst addr to write into pe
719 * @count: number of page entries to update
720 * @incr: increase next addr by incr bytes
721 * @flags: access flags
722 *
723 * Update PTEs by writing them manually using sDMA (CIK).
724 */
725static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib,
726 uint64_t pe,
727 uint64_t addr, unsigned count,
728 uint32_t incr, uint32_t flags)
729{
730 uint64_t value;
731 unsigned ndw;
732
733 while (count) {
734 ndw = count * 2;
735 if (ndw > 0xFFFFE)
736 ndw = 0xFFFFE;
737
738 /* for non-physically contiguous pages (system) */
739 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE,
740 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
741 ib->ptr[ib->length_dw++] = pe;
742 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
743 ib->ptr[ib->length_dw++] = ndw;
744 for (; ndw > 0; ndw -= 2, --count, pe += 8) {
745 if (flags & AMDGPU_PTE_SYSTEM) {
746 value = amdgpu_vm_map_gart(ib->ring->adev, addr);
747 value &= 0xFFFFFFFFFFFFF000ULL;
748 } else if (flags & AMDGPU_PTE_VALID) {
749 value = addr;
750 } else {
751 value = 0;
752 }
753 addr += incr;
754 value |= flags;
755 ib->ptr[ib->length_dw++] = value;
756 ib->ptr[ib->length_dw++] = upper_32_bits(value);
757 }
758 }
759}
760
761/**
762 * cik_sdma_vm_set_pages - update the page tables using sDMA
763 *
764 * @ib: indirect buffer to fill with commands
765 * @pe: addr of the page entry
766 * @addr: dst addr to write into pe
767 * @count: number of page entries to update
768 * @incr: increase next addr by incr bytes
769 * @flags: access flags
770 *
771 * Update the page tables using sDMA (CIK).
772 */
773static void cik_sdma_vm_set_pte_pde(struct amdgpu_ib *ib,
774 uint64_t pe,
775 uint64_t addr, unsigned count,
776 uint32_t incr, uint32_t flags)
777{
778 uint64_t value;
779 unsigned ndw;
780
781 while (count) {
782 ndw = count;
783 if (ndw > 0x7FFFF)
784 ndw = 0x7FFFF;
785
786 if (flags & AMDGPU_PTE_VALID)
787 value = addr;
788 else
789 value = 0;
790
791 /* for physically contiguous pages (vram) */
792 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0);
793 ib->ptr[ib->length_dw++] = pe; /* dst addr */
794 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
795 ib->ptr[ib->length_dw++] = flags; /* mask */
796 ib->ptr[ib->length_dw++] = 0;
797 ib->ptr[ib->length_dw++] = value; /* value */
798 ib->ptr[ib->length_dw++] = upper_32_bits(value);
799 ib->ptr[ib->length_dw++] = incr; /* increment size */
800 ib->ptr[ib->length_dw++] = 0;
801 ib->ptr[ib->length_dw++] = ndw; /* number of entries */
802
803 pe += ndw * 8;
804 addr += ndw * incr;
805 count -= ndw;
806 }
807}
808
809/**
810 * cik_sdma_vm_pad_ib - pad the IB to the required number of dw
811 *
812 * @ib: indirect buffer to fill with padding
813 *
814 */
815static void cik_sdma_vm_pad_ib(struct amdgpu_ib *ib)
816{
817 while (ib->length_dw & 0x7)
818 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0);
819}
820
821/**
822 * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA
823 *
824 * @ring: amdgpu_ring pointer
825 * @vm: amdgpu_vm pointer
826 *
827 * Update the page table base and flush the VM TLB
828 * using sDMA (CIK).
829 */
830static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
831 unsigned vm_id, uint64_t pd_addr)
832{
833 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) |
834 SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */
835
836 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
837 if (vm_id < 8) {
838 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id));
839 } else {
840 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8));
841 }
842 amdgpu_ring_write(ring, pd_addr >> 12);
843
844 /* flush TLB */
845 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
846 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
847 amdgpu_ring_write(ring, 1 << vm_id);
848
849 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
850 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
851 amdgpu_ring_write(ring, 0);
852 amdgpu_ring_write(ring, 0); /* reference */
853 amdgpu_ring_write(ring, 0); /* mask */
854 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
855}
856
857static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
858 bool enable)
859{
860 u32 orig, data;
861
862 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_MGCG)) {
863 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100);
864 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100);
865 } else {
866 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET);
867 data |= 0xff000000;
868 if (data != orig)
869 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data);
870
871 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET);
872 data |= 0xff000000;
873 if (data != orig)
874 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data);
875 }
876}
877
878static void cik_enable_sdma_mgls(struct amdgpu_device *adev,
879 bool enable)
880{
881 u32 orig, data;
882
883 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_LS)) {
884 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
885 data |= 0x100;
886 if (orig != data)
887 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
888
889 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
890 data |= 0x100;
891 if (orig != data)
892 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
893 } else {
894 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
895 data &= ~0x100;
896 if (orig != data)
897 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
898
899 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
900 data &= ~0x100;
901 if (orig != data)
902 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
903 }
904}
905
906static int cik_sdma_early_init(void *handle)
907{
908 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
909
910 cik_sdma_set_ring_funcs(adev);
911 cik_sdma_set_irq_funcs(adev);
912 cik_sdma_set_buffer_funcs(adev);
913 cik_sdma_set_vm_pte_funcs(adev);
914
915 return 0;
916}
917
918static int cik_sdma_sw_init(void *handle)
919{
920 struct amdgpu_ring *ring;
921 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
922 int r;
923
924 r = cik_sdma_init_microcode(adev);
925 if (r) {
926 DRM_ERROR("Failed to load sdma firmware!\n");
927 return r;
928 }
929
930 /* SDMA trap event */
931 r = amdgpu_irq_add_id(adev, 224, &adev->sdma_trap_irq);
932 if (r)
933 return r;
934
935 /* SDMA Privileged inst */
936 r = amdgpu_irq_add_id(adev, 241, &adev->sdma_illegal_inst_irq);
937 if (r)
938 return r;
939
940 /* SDMA Privileged inst */
941 r = amdgpu_irq_add_id(adev, 247, &adev->sdma_illegal_inst_irq);
942 if (r)
943 return r;
944
945 ring = &adev->sdma[0].ring;
946 ring->ring_obj = NULL;
947
948 ring = &adev->sdma[1].ring;
949 ring->ring_obj = NULL;
950
951 ring = &adev->sdma[0].ring;
952 sprintf(ring->name, "sdma0");
953 r = amdgpu_ring_init(adev, ring, 256 * 1024,
954 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf,
955 &adev->sdma_trap_irq, AMDGPU_SDMA_IRQ_TRAP0,
956 AMDGPU_RING_TYPE_SDMA);
957 if (r)
958 return r;
959
960 ring = &adev->sdma[1].ring;
961 sprintf(ring->name, "sdma1");
962 r = amdgpu_ring_init(adev, ring, 256 * 1024,
963 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf,
964 &adev->sdma_trap_irq, AMDGPU_SDMA_IRQ_TRAP1,
965 AMDGPU_RING_TYPE_SDMA);
966 if (r)
967 return r;
968
969 return r;
970}
971
972static int cik_sdma_sw_fini(void *handle)
973{
974 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
975
976 amdgpu_ring_fini(&adev->sdma[0].ring);
977 amdgpu_ring_fini(&adev->sdma[1].ring);
978
979 return 0;
980}
981
982static int cik_sdma_hw_init(void *handle)
983{
984 int r;
985 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
986
987 r = cik_sdma_start(adev);
988 if (r)
989 return r;
990
991 return r;
992}
993
994static int cik_sdma_hw_fini(void *handle)
995{
996 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
997
998 cik_sdma_enable(adev, false);
999
1000 return 0;
1001}
1002
1003static int cik_sdma_suspend(void *handle)
1004{
1005 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1006
1007 return cik_sdma_hw_fini(adev);
1008}
1009
1010static int cik_sdma_resume(void *handle)
1011{
1012 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1013
1014 return cik_sdma_hw_init(adev);
1015}
1016
1017static bool cik_sdma_is_idle(void *handle)
1018{
1019 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1020 u32 tmp = RREG32(mmSRBM_STATUS2);
1021
1022 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
1023 SRBM_STATUS2__SDMA1_BUSY_MASK))
1024 return false;
1025
1026 return true;
1027}
1028
1029static int cik_sdma_wait_for_idle(void *handle)
1030{
1031 unsigned i;
1032 u32 tmp;
1033 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1034
1035 for (i = 0; i < adev->usec_timeout; i++) {
1036 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1037 SRBM_STATUS2__SDMA1_BUSY_MASK);
1038
1039 if (!tmp)
1040 return 0;
1041 udelay(1);
1042 }
1043 return -ETIMEDOUT;
1044}
1045
1046static void cik_sdma_print_status(void *handle)
1047{
1048 int i, j;
1049 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1050
1051 dev_info(adev->dev, "CIK SDMA registers\n");
1052 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n",
1053 RREG32(mmSRBM_STATUS2));
1054 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
1055 dev_info(adev->dev, " SDMA%d_STATUS_REG=0x%08X\n",
1056 i, RREG32(mmSDMA0_STATUS_REG + sdma_offsets[i]));
1057 dev_info(adev->dev, " SDMA%d_ME_CNTL=0x%08X\n",
1058 i, RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]));
1059 dev_info(adev->dev, " SDMA%d_CNTL=0x%08X\n",
1060 i, RREG32(mmSDMA0_CNTL + sdma_offsets[i]));
1061 dev_info(adev->dev, " SDMA%d_SEM_INCOMPLETE_TIMER_CNTL=0x%08X\n",
1062 i, RREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i]));
1063 dev_info(adev->dev, " SDMA%d_SEM_WAIT_FAIL_TIMER_CNTL=0x%08X\n",
1064 i, RREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i]));
1065 dev_info(adev->dev, " SDMA%d_GFX_IB_CNTL=0x%08X\n",
1066 i, RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]));
1067 dev_info(adev->dev, " SDMA%d_GFX_RB_CNTL=0x%08X\n",
1068 i, RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]));
1069 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR=0x%08X\n",
1070 i, RREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i]));
1071 dev_info(adev->dev, " SDMA%d_GFX_RB_WPTR=0x%08X\n",
1072 i, RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i]));
1073 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_HI=0x%08X\n",
1074 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i]));
1075 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_LO=0x%08X\n",
1076 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i]));
1077 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE=0x%08X\n",
1078 i, RREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i]));
1079 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE_HI=0x%08X\n",
1080 i, RREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i]));
1081 mutex_lock(&adev->srbm_mutex);
1082 for (j = 0; j < 16; j++) {
1083 cik_srbm_select(adev, 0, 0, 0, j);
1084 dev_info(adev->dev, " VM %d:\n", j);
1085 dev_info(adev->dev, " SDMA0_GFX_VIRTUAL_ADDR=0x%08X\n",
1086 RREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i]));
1087 dev_info(adev->dev, " SDMA0_GFX_APE1_CNTL=0x%08X\n",
1088 RREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i]));
1089 }
1090 cik_srbm_select(adev, 0, 0, 0, 0);
1091 mutex_unlock(&adev->srbm_mutex);
1092 }
1093}
1094
1095static int cik_sdma_soft_reset(void *handle)
1096{
1097 u32 srbm_soft_reset = 0;
1098 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1099 u32 tmp = RREG32(mmSRBM_STATUS2);
1100
1101 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1102 /* sdma0 */
1103 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1104 tmp |= SDMA0_F32_CNTL__HALT_MASK;
1105 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1106 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1107 }
1108 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1109 /* sdma1 */
1110 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1111 tmp |= SDMA0_F32_CNTL__HALT_MASK;
1112 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1113 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1114 }
1115
1116 if (srbm_soft_reset) {
1117 cik_sdma_print_status((void *)adev);
1118
1119 tmp = RREG32(mmSRBM_SOFT_RESET);
1120 tmp |= srbm_soft_reset;
1121 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1122 WREG32(mmSRBM_SOFT_RESET, tmp);
1123 tmp = RREG32(mmSRBM_SOFT_RESET);
1124
1125 udelay(50);
1126
1127 tmp &= ~srbm_soft_reset;
1128 WREG32(mmSRBM_SOFT_RESET, tmp);
1129 tmp = RREG32(mmSRBM_SOFT_RESET);
1130
1131 /* Wait a little for things to settle down */
1132 udelay(50);
1133
1134 cik_sdma_print_status((void *)adev);
1135 }
1136
1137 return 0;
1138}
1139
1140static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev,
1141 struct amdgpu_irq_src *src,
1142 unsigned type,
1143 enum amdgpu_interrupt_state state)
1144{
1145 u32 sdma_cntl;
1146
1147 switch (type) {
1148 case AMDGPU_SDMA_IRQ_TRAP0:
1149 switch (state) {
1150 case AMDGPU_IRQ_STATE_DISABLE:
1151 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1152 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1153 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1154 break;
1155 case AMDGPU_IRQ_STATE_ENABLE:
1156 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1157 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1158 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1159 break;
1160 default:
1161 break;
1162 }
1163 break;
1164 case AMDGPU_SDMA_IRQ_TRAP1:
1165 switch (state) {
1166 case AMDGPU_IRQ_STATE_DISABLE:
1167 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1168 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1169 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1170 break;
1171 case AMDGPU_IRQ_STATE_ENABLE:
1172 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1173 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1174 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1175 break;
1176 default:
1177 break;
1178 }
1179 break;
1180 default:
1181 break;
1182 }
1183 return 0;
1184}
1185
1186static int cik_sdma_process_trap_irq(struct amdgpu_device *adev,
1187 struct amdgpu_irq_src *source,
1188 struct amdgpu_iv_entry *entry)
1189{
1190 u8 instance_id, queue_id;
1191
1192 instance_id = (entry->ring_id & 0x3) >> 0;
1193 queue_id = (entry->ring_id & 0xc) >> 2;
1194 DRM_DEBUG("IH: SDMA trap\n");
1195 switch (instance_id) {
1196 case 0:
1197 switch (queue_id) {
1198 case 0:
1199 amdgpu_fence_process(&adev->sdma[0].ring);
1200 break;
1201 case 1:
1202 /* XXX compute */
1203 break;
1204 case 2:
1205 /* XXX compute */
1206 break;
1207 }
1208 break;
1209 case 1:
1210 switch (queue_id) {
1211 case 0:
1212 amdgpu_fence_process(&adev->sdma[1].ring);
1213 break;
1214 case 1:
1215 /* XXX compute */
1216 break;
1217 case 2:
1218 /* XXX compute */
1219 break;
1220 }
1221 break;
1222 }
1223
1224 return 0;
1225}
1226
1227static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev,
1228 struct amdgpu_irq_src *source,
1229 struct amdgpu_iv_entry *entry)
1230{
1231 DRM_ERROR("Illegal instruction in SDMA command stream\n");
1232 schedule_work(&adev->reset_work);
1233 return 0;
1234}
1235
1236static int cik_sdma_set_clockgating_state(void *handle,
1237 enum amd_clockgating_state state)
1238{
1239 bool gate = false;
1240 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1241
1242 if (state == AMD_CG_STATE_GATE)
1243 gate = true;
1244
1245 cik_enable_sdma_mgcg(adev, gate);
1246 cik_enable_sdma_mgls(adev, gate);
1247
1248 return 0;
1249}
1250
1251static int cik_sdma_set_powergating_state(void *handle,
1252 enum amd_powergating_state state)
1253{
1254 return 0;
1255}
1256
1257const struct amd_ip_funcs cik_sdma_ip_funcs = {
1258 .early_init = cik_sdma_early_init,
1259 .late_init = NULL,
1260 .sw_init = cik_sdma_sw_init,
1261 .sw_fini = cik_sdma_sw_fini,
1262 .hw_init = cik_sdma_hw_init,
1263 .hw_fini = cik_sdma_hw_fini,
1264 .suspend = cik_sdma_suspend,
1265 .resume = cik_sdma_resume,
1266 .is_idle = cik_sdma_is_idle,
1267 .wait_for_idle = cik_sdma_wait_for_idle,
1268 .soft_reset = cik_sdma_soft_reset,
1269 .print_status = cik_sdma_print_status,
1270 .set_clockgating_state = cik_sdma_set_clockgating_state,
1271 .set_powergating_state = cik_sdma_set_powergating_state,
1272};
1273
1274/**
1275 * cik_sdma_ring_is_lockup - Check if the DMA engine is locked up
1276 *
1277 * @ring: amdgpu_ring structure holding ring information
1278 *
1279 * Check if the async DMA engine is locked up (CIK).
1280 * Returns true if the engine appears to be locked up, false if not.
1281 */
1282static bool cik_sdma_ring_is_lockup(struct amdgpu_ring *ring)
1283{
1284
1285 if (cik_sdma_is_idle(ring->adev)) {
1286 amdgpu_ring_lockup_update(ring);
1287 return false;
1288 }
1289 return amdgpu_ring_test_lockup(ring);
1290}
1291
1292static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
1293 .get_rptr = cik_sdma_ring_get_rptr,
1294 .get_wptr = cik_sdma_ring_get_wptr,
1295 .set_wptr = cik_sdma_ring_set_wptr,
1296 .parse_cs = NULL,
1297 .emit_ib = cik_sdma_ring_emit_ib,
1298 .emit_fence = cik_sdma_ring_emit_fence,
1299 .emit_semaphore = cik_sdma_ring_emit_semaphore,
1300 .emit_vm_flush = cik_sdma_ring_emit_vm_flush,
1301 .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
1302 .test_ring = cik_sdma_ring_test_ring,
1303 .test_ib = cik_sdma_ring_test_ib,
1304 .is_lockup = cik_sdma_ring_is_lockup,
1305};
1306
1307static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)
1308{
1309 adev->sdma[0].ring.funcs = &cik_sdma_ring_funcs;
1310 adev->sdma[1].ring.funcs = &cik_sdma_ring_funcs;
1311}
1312
1313static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = {
1314 .set = cik_sdma_set_trap_irq_state,
1315 .process = cik_sdma_process_trap_irq,
1316};
1317
1318static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = {
1319 .process = cik_sdma_process_illegal_inst_irq,
1320};
1321
1322static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev)
1323{
1324 adev->sdma_trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1325 adev->sdma_trap_irq.funcs = &cik_sdma_trap_irq_funcs;
1326 adev->sdma_illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs;
1327}
1328
1329/**
1330 * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine
1331 *
1332 * @ring: amdgpu_ring structure holding ring information
1333 * @src_offset: src GPU address
1334 * @dst_offset: dst GPU address
1335 * @byte_count: number of bytes to xfer
1336 *
1337 * Copy GPU buffers using the DMA engine (CIK).
1338 * Used by the amdgpu ttm implementation to move pages if
1339 * registered as the asic copy callback.
1340 */
1341static void cik_sdma_emit_copy_buffer(struct amdgpu_ring *ring,
1342 uint64_t src_offset,
1343 uint64_t dst_offset,
1344 uint32_t byte_count)
1345{
1346 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0));
1347 amdgpu_ring_write(ring, byte_count);
1348 amdgpu_ring_write(ring, 0); /* src/dst endian swap */
1349 amdgpu_ring_write(ring, lower_32_bits(src_offset));
1350 amdgpu_ring_write(ring, upper_32_bits(src_offset));
1351 amdgpu_ring_write(ring, lower_32_bits(dst_offset));
1352 amdgpu_ring_write(ring, upper_32_bits(dst_offset));
1353}
1354
1355/**
1356 * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine
1357 *
1358 * @ring: amdgpu_ring structure holding ring information
1359 * @src_data: value to write to buffer
1360 * @dst_offset: dst GPU address
1361 * @byte_count: number of bytes to xfer
1362 *
1363 * Fill GPU buffers using the DMA engine (CIK).
1364 */
1365static void cik_sdma_emit_fill_buffer(struct amdgpu_ring *ring,
1366 uint32_t src_data,
1367 uint64_t dst_offset,
1368 uint32_t byte_count)
1369{
1370 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0));
1371 amdgpu_ring_write(ring, lower_32_bits(dst_offset));
1372 amdgpu_ring_write(ring, upper_32_bits(dst_offset));
1373 amdgpu_ring_write(ring, src_data);
1374 amdgpu_ring_write(ring, byte_count);
1375}
1376
1377static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = {
1378 .copy_max_bytes = 0x1fffff,
1379 .copy_num_dw = 7,
1380 .emit_copy_buffer = cik_sdma_emit_copy_buffer,
1381
1382 .fill_max_bytes = 0x1fffff,
1383 .fill_num_dw = 5,
1384 .emit_fill_buffer = cik_sdma_emit_fill_buffer,
1385};
1386
1387static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev)
1388{
1389 if (adev->mman.buffer_funcs == NULL) {
1390 adev->mman.buffer_funcs = &cik_sdma_buffer_funcs;
1391 adev->mman.buffer_funcs_ring = &adev->sdma[0].ring;
1392 }
1393}
1394
1395static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = {
1396 .copy_pte = cik_sdma_vm_copy_pte,
1397 .write_pte = cik_sdma_vm_write_pte,
1398 .set_pte_pde = cik_sdma_vm_set_pte_pde,
1399 .pad_ib = cik_sdma_vm_pad_ib,
1400};
1401
1402static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev)
1403{
1404 if (adev->vm_manager.vm_pte_funcs == NULL) {
1405 adev->vm_manager.vm_pte_funcs = &cik_sdma_vm_pte_funcs;
1406 adev->vm_manager.vm_pte_funcs_ring = &adev->sdma[0].ring;
1407 }
1408}
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-04 17:47:22 -0400