2 * Copyright 2013 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Alex Deucher
24 #include <linux/firmware.h>
27 #include "amdgpu_ucode.h"
28 #include "amdgpu_trace.h"
32 #include "bif/bif_4_1_d.h"
33 #include "bif/bif_4_1_sh_mask.h"
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"
39 #include "gmc/gmc_7_1_d.h"
40 #include "gmc/gmc_7_1_sh_mask.h"
42 #include "oss/oss_2_0_d.h"
43 #include "oss/oss_2_0_sh_mask.h"
45 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
47 SDMA0_REGISTER_OFFSET,
51 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev);
52 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev);
53 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev);
54 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev);
56 MODULE_FIRMWARE("radeon/bonaire_sdma.bin");
57 MODULE_FIRMWARE("radeon/bonaire_sdma1.bin");
58 MODULE_FIRMWARE("radeon/hawaii_sdma.bin");
59 MODULE_FIRMWARE("radeon/hawaii_sdma1.bin");
60 MODULE_FIRMWARE("radeon/kaveri_sdma.bin");
61 MODULE_FIRMWARE("radeon/kaveri_sdma1.bin");
62 MODULE_FIRMWARE("radeon/kabini_sdma.bin");
63 MODULE_FIRMWARE("radeon/kabini_sdma1.bin");
64 MODULE_FIRMWARE("radeon/mullins_sdma.bin");
65 MODULE_FIRMWARE("radeon/mullins_sdma1.bin");
67 u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev);
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.
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
87 * cik_sdma_init_microcode - load ucode images from disk
89 * @adev: amdgpu_device pointer
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.
95 static int cik_sdma_init_microcode(struct amdgpu_device *adev)
97 const char *chip_name;
103 switch (adev->asic_type) {
105 chip_name = "bonaire";
108 chip_name = "hawaii";
111 chip_name = "kaveri";
114 chip_name = "kabini";
117 chip_name = "mullins";
122 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
124 snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma.bin", chip_name);
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);
130 err = amdgpu_ucode_validate(adev->sdma[i].fw);
135 "cik_sdma: Failed to load firmware \"%s\"\n",
137 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
138 release_firmware(adev->sdma[i].fw);
139 adev->sdma[i].fw = NULL;
146 * cik_sdma_ring_get_rptr - get the current read pointer
148 * @ring: amdgpu ring pointer
150 * Get the current rptr from the hardware (CIK+).
152 static uint32_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring)
156 rptr = ring->adev->wb.wb[ring->rptr_offs];
158 return (rptr & 0x3fffc) >> 2;
162 * cik_sdma_ring_get_wptr - get the current write pointer
164 * @ring: amdgpu ring pointer
166 * Get the current wptr from the hardware (CIK+).
168 static uint32_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring)
170 struct amdgpu_device *adev = ring->adev;
171 u32 me = (ring == &adev->sdma[0].ring) ? 0 : 1;
173 return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) & 0x3fffc) >> 2;
177 * cik_sdma_ring_set_wptr - commit the write pointer
179 * @ring: amdgpu ring pointer
181 * Write the wptr back to the hardware (CIK+).
183 static void cik_sdma_ring_set_wptr(struct amdgpu_ring *ring)
185 struct amdgpu_device *adev = ring->adev;
186 u32 me = (ring == &adev->sdma[0].ring) ? 0 : 1;
188 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], (ring->wptr << 2) & 0x3fffc);
191 static void cik_sdma_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
193 struct amdgpu_sdma *sdma = amdgpu_get_sdma_instance(ring);
196 for (i = 0; i < count; i++)
197 if (sdma && sdma->burst_nop && (i == 0))
198 amdgpu_ring_write(ring, ring->nop |
199 SDMA_NOP_COUNT(count - 1));
201 amdgpu_ring_write(ring, ring->nop);
205 * cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine
207 * @ring: amdgpu ring pointer
208 * @ib: IB object to schedule
210 * Schedule an IB in the DMA ring (CIK).
212 static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring,
213 struct amdgpu_ib *ib)
215 u32 extra_bits = (ib->vm ? ib->vm->ids[ring->idx].id : 0) & 0xf;
216 u32 next_rptr = ring->wptr + 5;
218 while ((next_rptr & 7) != 4)
222 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
223 amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
224 amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
225 amdgpu_ring_write(ring, 1); /* number of DWs to follow */
226 amdgpu_ring_write(ring, next_rptr);
228 /* IB packet must end on a 8 DW boundary */
229 cik_sdma_ring_insert_nop(ring, (12 - (ring->wptr & 7)) % 8);
231 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
232 amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
233 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
234 amdgpu_ring_write(ring, ib->length_dw);
239 * cik_sdma_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
241 * @ring: amdgpu ring pointer
243 * Emit an hdp flush packet on the requested DMA ring.
245 static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring)
247 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
248 SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
251 if (ring == &ring->adev->sdma[0].ring)
252 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK;
254 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK;
256 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
257 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
258 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
259 amdgpu_ring_write(ring, ref_and_mask); /* reference */
260 amdgpu_ring_write(ring, ref_and_mask); /* mask */
261 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
265 * cik_sdma_ring_emit_fence - emit a fence on the DMA ring
267 * @ring: amdgpu ring pointer
268 * @fence: amdgpu fence object
270 * Add a DMA fence packet to the ring to write
271 * the fence seq number and DMA trap packet to generate
272 * an interrupt if needed (CIK).
274 static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
277 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
278 /* write the fence */
279 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
280 amdgpu_ring_write(ring, lower_32_bits(addr));
281 amdgpu_ring_write(ring, upper_32_bits(addr));
282 amdgpu_ring_write(ring, lower_32_bits(seq));
284 /* optionally write high bits as well */
287 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
288 amdgpu_ring_write(ring, lower_32_bits(addr));
289 amdgpu_ring_write(ring, upper_32_bits(addr));
290 amdgpu_ring_write(ring, upper_32_bits(seq));
293 /* generate an interrupt */
294 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
298 * cik_sdma_ring_emit_semaphore - emit a semaphore on the dma ring
300 * @ring: amdgpu_ring structure holding ring information
301 * @semaphore: amdgpu semaphore object
302 * @emit_wait: wait or signal semaphore
304 * Add a DMA semaphore packet to the ring wait on or signal
307 static bool cik_sdma_ring_emit_semaphore(struct amdgpu_ring *ring,
308 struct amdgpu_semaphore *semaphore,
311 u64 addr = semaphore->gpu_addr;
312 u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S;
314 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits));
315 amdgpu_ring_write(ring, addr & 0xfffffff8);
316 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
322 * cik_sdma_gfx_stop - stop the gfx async dma engines
324 * @adev: amdgpu_device pointer
326 * Stop the gfx async dma ring buffers (CIK).
328 static void cik_sdma_gfx_stop(struct amdgpu_device *adev)
330 struct amdgpu_ring *sdma0 = &adev->sdma[0].ring;
331 struct amdgpu_ring *sdma1 = &adev->sdma[1].ring;
335 if ((adev->mman.buffer_funcs_ring == sdma0) ||
336 (adev->mman.buffer_funcs_ring == sdma1))
337 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
339 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
340 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
341 rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK;
342 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
343 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0);
345 sdma0->ready = false;
346 sdma1->ready = false;
350 * cik_sdma_rlc_stop - stop the compute async dma engines
352 * @adev: amdgpu_device pointer
354 * Stop the compute async dma queues (CIK).
356 static void cik_sdma_rlc_stop(struct amdgpu_device *adev)
362 * cik_sdma_enable - stop the async dma engines
364 * @adev: amdgpu_device pointer
365 * @enable: enable/disable the DMA MEs.
367 * Halt or unhalt the async dma engines (CIK).
369 static void cik_sdma_enable(struct amdgpu_device *adev, bool enable)
374 if (enable == false) {
375 cik_sdma_gfx_stop(adev);
376 cik_sdma_rlc_stop(adev);
379 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
380 me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
382 me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK;
384 me_cntl |= SDMA0_F32_CNTL__HALT_MASK;
385 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl);
390 * cik_sdma_gfx_resume - setup and start the async dma engines
392 * @adev: amdgpu_device pointer
394 * Set up the gfx DMA ring buffers and enable them (CIK).
395 * Returns 0 for success, error for failure.
397 static int cik_sdma_gfx_resume(struct amdgpu_device *adev)
399 struct amdgpu_ring *ring;
400 u32 rb_cntl, ib_cntl;
405 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
406 ring = &adev->sdma[i].ring;
407 wb_offset = (ring->rptr_offs * 4);
409 mutex_lock(&adev->srbm_mutex);
410 for (j = 0; j < 16; j++) {
411 cik_srbm_select(adev, 0, 0, 0, j);
413 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
414 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
415 /* XXX SDMA RLC - todo */
417 cik_srbm_select(adev, 0, 0, 0, 0);
418 mutex_unlock(&adev->srbm_mutex);
420 WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0);
421 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
423 /* Set ring buffer size in dwords */
424 rb_bufsz = order_base_2(ring->ring_size / 4);
425 rb_cntl = rb_bufsz << 1;
427 rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK |
428 SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK;
430 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
432 /* Initialize the ring buffer's read and write pointers */
433 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
434 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
436 /* set the wb address whether it's enabled or not */
437 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
438 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
439 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
440 ((adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
442 rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK;
444 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
445 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
448 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
451 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i],
452 rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK);
454 ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK;
456 ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK;
459 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
463 r = amdgpu_ring_test_ring(ring);
469 if (adev->mman.buffer_funcs_ring == ring)
470 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size);
477 * cik_sdma_rlc_resume - setup and start the async dma engines
479 * @adev: amdgpu_device pointer
481 * Set up the compute DMA queues and enable them (CIK).
482 * Returns 0 for success, error for failure.
484 static int cik_sdma_rlc_resume(struct amdgpu_device *adev)
491 * cik_sdma_load_microcode - load the sDMA ME ucode
493 * @adev: amdgpu_device pointer
495 * Loads the sDMA0/1 ucode.
496 * Returns 0 for success, -EINVAL if the ucode is not available.
498 static int cik_sdma_load_microcode(struct amdgpu_device *adev)
500 const struct sdma_firmware_header_v1_0 *hdr;
501 const __le32 *fw_data;
505 if (!adev->sdma[0].fw || !adev->sdma[1].fw)
509 cik_sdma_enable(adev, false);
511 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
512 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma[i].fw->data;
513 amdgpu_ucode_print_sdma_hdr(&hdr->header);
514 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
515 adev->sdma[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
516 adev->sdma[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
517 if (adev->sdma[i].feature_version >= 20)
518 adev->sdma[i].burst_nop = true;
519 fw_data = (const __le32 *)
520 (adev->sdma[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
521 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
522 for (j = 0; j < fw_size; j++)
523 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
524 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma[i].fw_version);
531 * cik_sdma_start - setup and start the async dma engines
533 * @adev: amdgpu_device pointer
535 * Set up the DMA engines and enable them (CIK).
536 * Returns 0 for success, error for failure.
538 static int cik_sdma_start(struct amdgpu_device *adev)
542 r = cik_sdma_load_microcode(adev);
547 cik_sdma_enable(adev, true);
549 /* start the gfx rings and rlc compute queues */
550 r = cik_sdma_gfx_resume(adev);
553 r = cik_sdma_rlc_resume(adev);
561 * cik_sdma_ring_test_ring - simple async dma engine test
563 * @ring: amdgpu_ring structure holding ring information
565 * Test the DMA engine by writing using it to write an
566 * value to memory. (CIK).
567 * Returns 0 for success, error for failure.
569 static int cik_sdma_ring_test_ring(struct amdgpu_ring *ring)
571 struct amdgpu_device *adev = ring->adev;
578 r = amdgpu_wb_get(adev, &index);
580 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
584 gpu_addr = adev->wb.gpu_addr + (index * 4);
586 adev->wb.wb[index] = cpu_to_le32(tmp);
588 r = amdgpu_ring_lock(ring, 5);
590 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
591 amdgpu_wb_free(adev, index);
594 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
595 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
596 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
597 amdgpu_ring_write(ring, 1); /* number of DWs to follow */
598 amdgpu_ring_write(ring, 0xDEADBEEF);
599 amdgpu_ring_unlock_commit(ring);
601 for (i = 0; i < adev->usec_timeout; i++) {
602 tmp = le32_to_cpu(adev->wb.wb[index]);
603 if (tmp == 0xDEADBEEF)
608 if (i < adev->usec_timeout) {
609 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
611 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
615 amdgpu_wb_free(adev, index);
621 * cik_sdma_ring_test_ib - test an IB on the DMA engine
623 * @ring: amdgpu_ring structure holding ring information
625 * Test a simple IB in the DMA ring (CIK).
626 * Returns 0 on success, error on failure.
628 static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring)
630 struct amdgpu_device *adev = ring->adev;
632 struct fence *f = NULL;
639 r = amdgpu_wb_get(adev, &index);
641 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
645 gpu_addr = adev->wb.gpu_addr + (index * 4);
647 adev->wb.wb[index] = cpu_to_le32(tmp);
648 memset(&ib, 0, sizeof(ib));
649 r = amdgpu_ib_get(ring, NULL, 256, &ib);
651 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
655 ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
656 ib.ptr[1] = lower_32_bits(gpu_addr);
657 ib.ptr[2] = upper_32_bits(gpu_addr);
659 ib.ptr[4] = 0xDEADBEEF;
661 r = amdgpu_sched_ib_submit_kernel_helper(adev, ring, &ib, 1, NULL,
662 AMDGPU_FENCE_OWNER_UNDEFINED,
667 r = fence_wait(f, false);
669 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
672 for (i = 0; i < adev->usec_timeout; i++) {
673 tmp = le32_to_cpu(adev->wb.wb[index]);
674 if (tmp == 0xDEADBEEF)
678 if (i < adev->usec_timeout) {
679 DRM_INFO("ib test on ring %d succeeded in %u usecs\n",
683 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
689 amdgpu_ib_free(adev, &ib);
691 amdgpu_wb_free(adev, index);
696 * cik_sdma_vm_copy_pages - update PTEs by copying them from the GART
698 * @ib: indirect buffer to fill with commands
699 * @pe: addr of the page entry
700 * @src: src addr to copy from
701 * @count: number of page entries to update
703 * Update PTEs by copying them from the GART using sDMA (CIK).
705 static void cik_sdma_vm_copy_pte(struct amdgpu_ib *ib,
706 uint64_t pe, uint64_t src,
710 unsigned bytes = count * 8;
711 if (bytes > 0x1FFFF8)
714 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY,
715 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
716 ib->ptr[ib->length_dw++] = bytes;
717 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
718 ib->ptr[ib->length_dw++] = lower_32_bits(src);
719 ib->ptr[ib->length_dw++] = upper_32_bits(src);
720 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
721 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
730 * cik_sdma_vm_write_pages - update PTEs by writing them manually
732 * @ib: indirect buffer to fill with commands
733 * @pe: addr of the page entry
734 * @addr: dst addr to write into pe
735 * @count: number of page entries to update
736 * @incr: increase next addr by incr bytes
737 * @flags: access flags
739 * Update PTEs by writing them manually using sDMA (CIK).
741 static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib,
743 uint64_t addr, unsigned count,
744 uint32_t incr, uint32_t flags)
754 /* for non-physically contiguous pages (system) */
755 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE,
756 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
757 ib->ptr[ib->length_dw++] = pe;
758 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
759 ib->ptr[ib->length_dw++] = ndw;
760 for (; ndw > 0; ndw -= 2, --count, pe += 8) {
761 if (flags & AMDGPU_PTE_SYSTEM) {
762 value = amdgpu_vm_map_gart(ib->ring->adev, addr);
763 value &= 0xFFFFFFFFFFFFF000ULL;
764 } else if (flags & AMDGPU_PTE_VALID) {
771 ib->ptr[ib->length_dw++] = value;
772 ib->ptr[ib->length_dw++] = upper_32_bits(value);
778 * cik_sdma_vm_set_pages - update the page tables using sDMA
780 * @ib: indirect buffer to fill with commands
781 * @pe: addr of the page entry
782 * @addr: dst addr to write into pe
783 * @count: number of page entries to update
784 * @incr: increase next addr by incr bytes
785 * @flags: access flags
787 * Update the page tables using sDMA (CIK).
789 static void cik_sdma_vm_set_pte_pde(struct amdgpu_ib *ib,
791 uint64_t addr, unsigned count,
792 uint32_t incr, uint32_t flags)
802 if (flags & AMDGPU_PTE_VALID)
807 /* for physically contiguous pages (vram) */
808 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0);
809 ib->ptr[ib->length_dw++] = pe; /* dst addr */
810 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
811 ib->ptr[ib->length_dw++] = flags; /* mask */
812 ib->ptr[ib->length_dw++] = 0;
813 ib->ptr[ib->length_dw++] = value; /* value */
814 ib->ptr[ib->length_dw++] = upper_32_bits(value);
815 ib->ptr[ib->length_dw++] = incr; /* increment size */
816 ib->ptr[ib->length_dw++] = 0;
817 ib->ptr[ib->length_dw++] = ndw; /* number of entries */
826 * cik_sdma_vm_pad_ib - pad the IB to the required number of dw
828 * @ib: indirect buffer to fill with padding
831 static void cik_sdma_vm_pad_ib(struct amdgpu_ib *ib)
833 struct amdgpu_sdma *sdma = amdgpu_get_sdma_instance(ib->ring);
837 pad_count = (8 - (ib->length_dw & 0x7)) % 8;
838 for (i = 0; i < pad_count; i++)
839 if (sdma && sdma->burst_nop && (i == 0))
840 ib->ptr[ib->length_dw++] =
841 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0) |
842 SDMA_NOP_COUNT(pad_count - 1);
844 ib->ptr[ib->length_dw++] =
845 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0);
849 * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA
851 * @ring: amdgpu_ring pointer
852 * @vm: amdgpu_vm pointer
854 * Update the page table base and flush the VM TLB
857 static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
858 unsigned vm_id, uint64_t pd_addr)
860 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) |
861 SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */
863 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
865 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id));
867 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8));
869 amdgpu_ring_write(ring, pd_addr >> 12);
872 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
873 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
874 amdgpu_ring_write(ring, 1 << vm_id);
876 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
877 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
878 amdgpu_ring_write(ring, 0);
879 amdgpu_ring_write(ring, 0); /* reference */
880 amdgpu_ring_write(ring, 0); /* mask */
881 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
884 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
889 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_MGCG)) {
890 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100);
891 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100);
893 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET);
896 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data);
898 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET);
901 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data);
905 static void cik_enable_sdma_mgls(struct amdgpu_device *adev,
910 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_SDMA_LS)) {
911 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
914 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
916 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
919 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
921 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
924 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
926 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
929 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
933 static int cik_sdma_early_init(void *handle)
935 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
937 cik_sdma_set_ring_funcs(adev);
938 cik_sdma_set_irq_funcs(adev);
939 cik_sdma_set_buffer_funcs(adev);
940 cik_sdma_set_vm_pte_funcs(adev);
945 static int cik_sdma_sw_init(void *handle)
947 struct amdgpu_ring *ring;
948 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
951 r = cik_sdma_init_microcode(adev);
953 DRM_ERROR("Failed to load sdma firmware!\n");
957 /* SDMA trap event */
958 r = amdgpu_irq_add_id(adev, 224, &adev->sdma_trap_irq);
962 /* SDMA Privileged inst */
963 r = amdgpu_irq_add_id(adev, 241, &adev->sdma_illegal_inst_irq);
967 /* SDMA Privileged inst */
968 r = amdgpu_irq_add_id(adev, 247, &adev->sdma_illegal_inst_irq);
972 ring = &adev->sdma[0].ring;
973 ring->ring_obj = NULL;
975 ring = &adev->sdma[1].ring;
976 ring->ring_obj = NULL;
978 ring = &adev->sdma[0].ring;
979 sprintf(ring->name, "sdma0");
980 r = amdgpu_ring_init(adev, ring, 256 * 1024,
981 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf,
982 &adev->sdma_trap_irq, AMDGPU_SDMA_IRQ_TRAP0,
983 AMDGPU_RING_TYPE_SDMA);
987 ring = &adev->sdma[1].ring;
988 sprintf(ring->name, "sdma1");
989 r = amdgpu_ring_init(adev, ring, 256 * 1024,
990 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf,
991 &adev->sdma_trap_irq, AMDGPU_SDMA_IRQ_TRAP1,
992 AMDGPU_RING_TYPE_SDMA);
999 static int cik_sdma_sw_fini(void *handle)
1001 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1003 amdgpu_ring_fini(&adev->sdma[0].ring);
1004 amdgpu_ring_fini(&adev->sdma[1].ring);
1009 static int cik_sdma_hw_init(void *handle)
1012 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1014 r = cik_sdma_start(adev);
1021 static int cik_sdma_hw_fini(void *handle)
1023 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1025 cik_sdma_enable(adev, false);
1030 static int cik_sdma_suspend(void *handle)
1032 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1034 return cik_sdma_hw_fini(adev);
1037 static int cik_sdma_resume(void *handle)
1039 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1041 return cik_sdma_hw_init(adev);
1044 static bool cik_sdma_is_idle(void *handle)
1046 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1047 u32 tmp = RREG32(mmSRBM_STATUS2);
1049 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
1050 SRBM_STATUS2__SDMA1_BUSY_MASK))
1056 static int cik_sdma_wait_for_idle(void *handle)
1060 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1062 for (i = 0; i < adev->usec_timeout; i++) {
1063 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1064 SRBM_STATUS2__SDMA1_BUSY_MASK);
1073 static void cik_sdma_print_status(void *handle)
1076 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1078 dev_info(adev->dev, "CIK SDMA registers\n");
1079 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n",
1080 RREG32(mmSRBM_STATUS2));
1081 for (i = 0; i < SDMA_MAX_INSTANCE; i++) {
1082 dev_info(adev->dev, " SDMA%d_STATUS_REG=0x%08X\n",
1083 i, RREG32(mmSDMA0_STATUS_REG + sdma_offsets[i]));
1084 dev_info(adev->dev, " SDMA%d_ME_CNTL=0x%08X\n",
1085 i, RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]));
1086 dev_info(adev->dev, " SDMA%d_CNTL=0x%08X\n",
1087 i, RREG32(mmSDMA0_CNTL + sdma_offsets[i]));
1088 dev_info(adev->dev, " SDMA%d_SEM_INCOMPLETE_TIMER_CNTL=0x%08X\n",
1089 i, RREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i]));
1090 dev_info(adev->dev, " SDMA%d_SEM_WAIT_FAIL_TIMER_CNTL=0x%08X\n",
1091 i, RREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i]));
1092 dev_info(adev->dev, " SDMA%d_GFX_IB_CNTL=0x%08X\n",
1093 i, RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]));
1094 dev_info(adev->dev, " SDMA%d_GFX_RB_CNTL=0x%08X\n",
1095 i, RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]));
1096 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR=0x%08X\n",
1097 i, RREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i]));
1098 dev_info(adev->dev, " SDMA%d_GFX_RB_WPTR=0x%08X\n",
1099 i, RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i]));
1100 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_HI=0x%08X\n",
1101 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i]));
1102 dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_LO=0x%08X\n",
1103 i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i]));
1104 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE=0x%08X\n",
1105 i, RREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i]));
1106 dev_info(adev->dev, " SDMA%d_GFX_RB_BASE_HI=0x%08X\n",
1107 i, RREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i]));
1108 mutex_lock(&adev->srbm_mutex);
1109 for (j = 0; j < 16; j++) {
1110 cik_srbm_select(adev, 0, 0, 0, j);
1111 dev_info(adev->dev, " VM %d:\n", j);
1112 dev_info(adev->dev, " SDMA0_GFX_VIRTUAL_ADDR=0x%08X\n",
1113 RREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i]));
1114 dev_info(adev->dev, " SDMA0_GFX_APE1_CNTL=0x%08X\n",
1115 RREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i]));
1117 cik_srbm_select(adev, 0, 0, 0, 0);
1118 mutex_unlock(&adev->srbm_mutex);
1122 static int cik_sdma_soft_reset(void *handle)
1124 u32 srbm_soft_reset = 0;
1125 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1126 u32 tmp = RREG32(mmSRBM_STATUS2);
1128 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1130 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1131 tmp |= SDMA0_F32_CNTL__HALT_MASK;
1132 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1133 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1135 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1137 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1138 tmp |= SDMA0_F32_CNTL__HALT_MASK;
1139 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1140 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1143 if (srbm_soft_reset) {
1144 cik_sdma_print_status((void *)adev);
1146 tmp = RREG32(mmSRBM_SOFT_RESET);
1147 tmp |= srbm_soft_reset;
1148 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1149 WREG32(mmSRBM_SOFT_RESET, tmp);
1150 tmp = RREG32(mmSRBM_SOFT_RESET);
1154 tmp &= ~srbm_soft_reset;
1155 WREG32(mmSRBM_SOFT_RESET, tmp);
1156 tmp = RREG32(mmSRBM_SOFT_RESET);
1158 /* Wait a little for things to settle down */
1161 cik_sdma_print_status((void *)adev);
1167 static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev,
1168 struct amdgpu_irq_src *src,
1170 enum amdgpu_interrupt_state state)
1175 case AMDGPU_SDMA_IRQ_TRAP0:
1177 case AMDGPU_IRQ_STATE_DISABLE:
1178 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1179 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1180 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1182 case AMDGPU_IRQ_STATE_ENABLE:
1183 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1184 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1185 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1191 case AMDGPU_SDMA_IRQ_TRAP1:
1193 case AMDGPU_IRQ_STATE_DISABLE:
1194 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1195 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1196 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1198 case AMDGPU_IRQ_STATE_ENABLE:
1199 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1200 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1201 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1213 static int cik_sdma_process_trap_irq(struct amdgpu_device *adev,
1214 struct amdgpu_irq_src *source,
1215 struct amdgpu_iv_entry *entry)
1217 u8 instance_id, queue_id;
1219 instance_id = (entry->ring_id & 0x3) >> 0;
1220 queue_id = (entry->ring_id & 0xc) >> 2;
1221 DRM_DEBUG("IH: SDMA trap\n");
1222 switch (instance_id) {
1226 amdgpu_fence_process(&adev->sdma[0].ring);
1239 amdgpu_fence_process(&adev->sdma[1].ring);
1254 static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev,
1255 struct amdgpu_irq_src *source,
1256 struct amdgpu_iv_entry *entry)
1258 DRM_ERROR("Illegal instruction in SDMA command stream\n");
1259 schedule_work(&adev->reset_work);
1263 static int cik_sdma_set_clockgating_state(void *handle,
1264 enum amd_clockgating_state state)
1267 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1269 if (state == AMD_CG_STATE_GATE)
1272 cik_enable_sdma_mgcg(adev, gate);
1273 cik_enable_sdma_mgls(adev, gate);
1278 static int cik_sdma_set_powergating_state(void *handle,
1279 enum amd_powergating_state state)
1284 const struct amd_ip_funcs cik_sdma_ip_funcs = {
1285 .early_init = cik_sdma_early_init,
1287 .sw_init = cik_sdma_sw_init,
1288 .sw_fini = cik_sdma_sw_fini,
1289 .hw_init = cik_sdma_hw_init,
1290 .hw_fini = cik_sdma_hw_fini,
1291 .suspend = cik_sdma_suspend,
1292 .resume = cik_sdma_resume,
1293 .is_idle = cik_sdma_is_idle,
1294 .wait_for_idle = cik_sdma_wait_for_idle,
1295 .soft_reset = cik_sdma_soft_reset,
1296 .print_status = cik_sdma_print_status,
1297 .set_clockgating_state = cik_sdma_set_clockgating_state,
1298 .set_powergating_state = cik_sdma_set_powergating_state,
1302 * cik_sdma_ring_is_lockup - Check if the DMA engine is locked up
1304 * @ring: amdgpu_ring structure holding ring information
1306 * Check if the async DMA engine is locked up (CIK).
1307 * Returns true if the engine appears to be locked up, false if not.
1309 static bool cik_sdma_ring_is_lockup(struct amdgpu_ring *ring)
1312 if (cik_sdma_is_idle(ring->adev)) {
1313 amdgpu_ring_lockup_update(ring);
1316 return amdgpu_ring_test_lockup(ring);
1319 static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
1320 .get_rptr = cik_sdma_ring_get_rptr,
1321 .get_wptr = cik_sdma_ring_get_wptr,
1322 .set_wptr = cik_sdma_ring_set_wptr,
1324 .emit_ib = cik_sdma_ring_emit_ib,
1325 .emit_fence = cik_sdma_ring_emit_fence,
1326 .emit_semaphore = cik_sdma_ring_emit_semaphore,
1327 .emit_vm_flush = cik_sdma_ring_emit_vm_flush,
1328 .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
1329 .test_ring = cik_sdma_ring_test_ring,
1330 .test_ib = cik_sdma_ring_test_ib,
1331 .is_lockup = cik_sdma_ring_is_lockup,
1332 .insert_nop = cik_sdma_ring_insert_nop,
1335 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)
1337 adev->sdma[0].ring.funcs = &cik_sdma_ring_funcs;
1338 adev->sdma[1].ring.funcs = &cik_sdma_ring_funcs;
1341 static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = {
1342 .set = cik_sdma_set_trap_irq_state,
1343 .process = cik_sdma_process_trap_irq,
1346 static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = {
1347 .process = cik_sdma_process_illegal_inst_irq,
1350 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev)
1352 adev->sdma_trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1353 adev->sdma_trap_irq.funcs = &cik_sdma_trap_irq_funcs;
1354 adev->sdma_illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs;
1358 * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine
1360 * @ring: amdgpu_ring structure holding ring information
1361 * @src_offset: src GPU address
1362 * @dst_offset: dst GPU address
1363 * @byte_count: number of bytes to xfer
1365 * Copy GPU buffers using the DMA engine (CIK).
1366 * Used by the amdgpu ttm implementation to move pages if
1367 * registered as the asic copy callback.
1369 static void cik_sdma_emit_copy_buffer(struct amdgpu_ib *ib,
1370 uint64_t src_offset,
1371 uint64_t dst_offset,
1372 uint32_t byte_count)
1374 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0);
1375 ib->ptr[ib->length_dw++] = byte_count;
1376 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1377 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1378 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1379 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1380 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1384 * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine
1386 * @ring: amdgpu_ring structure holding ring information
1387 * @src_data: value to write to buffer
1388 * @dst_offset: dst GPU address
1389 * @byte_count: number of bytes to xfer
1391 * Fill GPU buffers using the DMA engine (CIK).
1393 static void cik_sdma_emit_fill_buffer(struct amdgpu_ib *ib,
1395 uint64_t dst_offset,
1396 uint32_t byte_count)
1398 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0);
1399 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1400 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1401 ib->ptr[ib->length_dw++] = src_data;
1402 ib->ptr[ib->length_dw++] = byte_count;
1405 static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = {
1406 .copy_max_bytes = 0x1fffff,
1408 .emit_copy_buffer = cik_sdma_emit_copy_buffer,
1410 .fill_max_bytes = 0x1fffff,
1412 .emit_fill_buffer = cik_sdma_emit_fill_buffer,
1415 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev)
1417 if (adev->mman.buffer_funcs == NULL) {
1418 adev->mman.buffer_funcs = &cik_sdma_buffer_funcs;
1419 adev->mman.buffer_funcs_ring = &adev->sdma[0].ring;
1423 static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = {
1424 .copy_pte = cik_sdma_vm_copy_pte,
1425 .write_pte = cik_sdma_vm_write_pte,
1426 .set_pte_pde = cik_sdma_vm_set_pte_pde,
1427 .pad_ib = cik_sdma_vm_pad_ib,
1430 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev)
1432 if (adev->vm_manager.vm_pte_funcs == NULL) {
1433 adev->vm_manager.vm_pte_funcs = &cik_sdma_vm_pte_funcs;
1434 adev->vm_manager.vm_pte_funcs_ring = &adev->sdma[0].ring;
1435 adev->vm_manager.vm_pte_funcs_ring->is_pte_ring = true;