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 < adev->sdma.num_instances; 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.instance[i].fw, fw_name, adev->dev);
130 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
135 "cik_sdma: Failed to load firmware \"%s\"\n",
137 for (i = 0; i < adev->sdma.num_instances; i++) {
138 release_firmware(adev->sdma.instance[i].fw);
139 adev->sdma.instance[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.instance[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.instance[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_instance *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,
214 unsigned vm_id, bool ctx_switch)
216 u32 extra_bits = vm_id & 0xf;
217 u32 next_rptr = ring->wptr + 5;
219 while ((next_rptr & 7) != 4)
223 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
224 amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
225 amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
226 amdgpu_ring_write(ring, 1); /* number of DWs to follow */
227 amdgpu_ring_write(ring, next_rptr);
229 /* IB packet must end on a 8 DW boundary */
230 cik_sdma_ring_insert_nop(ring, (12 - (ring->wptr & 7)) % 8);
232 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
233 amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
234 amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
235 amdgpu_ring_write(ring, ib->length_dw);
240 * cik_sdma_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
242 * @ring: amdgpu ring pointer
244 * Emit an hdp flush packet on the requested DMA ring.
246 static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring)
248 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
249 SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
252 if (ring == &ring->adev->sdma.instance[0].ring)
253 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK;
255 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK;
257 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
258 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
259 amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
260 amdgpu_ring_write(ring, ref_and_mask); /* reference */
261 amdgpu_ring_write(ring, ref_and_mask); /* mask */
262 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
265 static void cik_sdma_ring_emit_hdp_invalidate(struct amdgpu_ring *ring)
267 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
268 amdgpu_ring_write(ring, mmHDP_DEBUG0);
269 amdgpu_ring_write(ring, 1);
273 * cik_sdma_ring_emit_fence - emit a fence on the DMA ring
275 * @ring: amdgpu ring pointer
276 * @fence: amdgpu fence object
278 * Add a DMA fence packet to the ring to write
279 * the fence seq number and DMA trap packet to generate
280 * an interrupt if needed (CIK).
282 static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
285 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
286 /* write the fence */
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, lower_32_bits(seq));
292 /* optionally write high bits as well */
295 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
296 amdgpu_ring_write(ring, lower_32_bits(addr));
297 amdgpu_ring_write(ring, upper_32_bits(addr));
298 amdgpu_ring_write(ring, upper_32_bits(seq));
301 /* generate an interrupt */
302 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
306 * cik_sdma_gfx_stop - stop the gfx async dma engines
308 * @adev: amdgpu_device pointer
310 * Stop the gfx async dma ring buffers (CIK).
312 static void cik_sdma_gfx_stop(struct amdgpu_device *adev)
314 struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
315 struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
319 if ((adev->mman.buffer_funcs_ring == sdma0) ||
320 (adev->mman.buffer_funcs_ring == sdma1))
321 amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
323 for (i = 0; i < adev->sdma.num_instances; i++) {
324 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
325 rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK;
326 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
327 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0);
329 sdma0->ready = false;
330 sdma1->ready = false;
334 * cik_sdma_rlc_stop - stop the compute async dma engines
336 * @adev: amdgpu_device pointer
338 * Stop the compute async dma queues (CIK).
340 static void cik_sdma_rlc_stop(struct amdgpu_device *adev)
346 * cik_sdma_enable - stop the async dma engines
348 * @adev: amdgpu_device pointer
349 * @enable: enable/disable the DMA MEs.
351 * Halt or unhalt the async dma engines (CIK).
353 static void cik_sdma_enable(struct amdgpu_device *adev, bool enable)
358 if (enable == false) {
359 cik_sdma_gfx_stop(adev);
360 cik_sdma_rlc_stop(adev);
363 for (i = 0; i < adev->sdma.num_instances; i++) {
364 me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
366 me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK;
368 me_cntl |= SDMA0_F32_CNTL__HALT_MASK;
369 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl);
374 * cik_sdma_gfx_resume - setup and start the async dma engines
376 * @adev: amdgpu_device pointer
378 * Set up the gfx DMA ring buffers and enable them (CIK).
379 * Returns 0 for success, error for failure.
381 static int cik_sdma_gfx_resume(struct amdgpu_device *adev)
383 struct amdgpu_ring *ring;
384 u32 rb_cntl, ib_cntl;
389 for (i = 0; i < adev->sdma.num_instances; i++) {
390 ring = &adev->sdma.instance[i].ring;
391 wb_offset = (ring->rptr_offs * 4);
393 mutex_lock(&adev->srbm_mutex);
394 for (j = 0; j < 16; j++) {
395 cik_srbm_select(adev, 0, 0, 0, j);
397 WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
398 WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
399 /* XXX SDMA RLC - todo */
401 cik_srbm_select(adev, 0, 0, 0, 0);
402 mutex_unlock(&adev->srbm_mutex);
404 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
405 adev->gfx.config.gb_addr_config & 0x70);
407 WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0);
408 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
410 /* Set ring buffer size in dwords */
411 rb_bufsz = order_base_2(ring->ring_size / 4);
412 rb_cntl = rb_bufsz << 1;
414 rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK |
415 SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK;
417 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
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 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0);
423 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0);
425 /* set the wb address whether it's enabled or not */
426 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
427 upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
428 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
429 ((adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
431 rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK;
433 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
434 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
437 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
440 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i],
441 rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK);
443 ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK;
445 ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK;
448 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
453 cik_sdma_enable(adev, true);
455 for (i = 0; i < adev->sdma.num_instances; i++) {
456 ring = &adev->sdma.instance[i].ring;
457 r = amdgpu_ring_test_ring(ring);
463 if (adev->mman.buffer_funcs_ring == ring)
464 amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size);
471 * cik_sdma_rlc_resume - setup and start the async dma engines
473 * @adev: amdgpu_device pointer
475 * Set up the compute DMA queues and enable them (CIK).
476 * Returns 0 for success, error for failure.
478 static int cik_sdma_rlc_resume(struct amdgpu_device *adev)
485 * cik_sdma_load_microcode - load the sDMA ME ucode
487 * @adev: amdgpu_device pointer
489 * Loads the sDMA0/1 ucode.
490 * Returns 0 for success, -EINVAL if the ucode is not available.
492 static int cik_sdma_load_microcode(struct amdgpu_device *adev)
494 const struct sdma_firmware_header_v1_0 *hdr;
495 const __le32 *fw_data;
500 cik_sdma_enable(adev, false);
502 for (i = 0; i < adev->sdma.num_instances; i++) {
503 if (!adev->sdma.instance[i].fw)
505 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
506 amdgpu_ucode_print_sdma_hdr(&hdr->header);
507 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
508 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
509 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
510 if (adev->sdma.instance[i].feature_version >= 20)
511 adev->sdma.instance[i].burst_nop = true;
512 fw_data = (const __le32 *)
513 (adev->sdma.instance[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
514 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
515 for (j = 0; j < fw_size; j++)
516 WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
517 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version);
524 * cik_sdma_start - setup and start the async dma engines
526 * @adev: amdgpu_device pointer
528 * Set up the DMA engines and enable them (CIK).
529 * Returns 0 for success, error for failure.
531 static int cik_sdma_start(struct amdgpu_device *adev)
535 r = cik_sdma_load_microcode(adev);
539 /* halt the engine before programing */
540 cik_sdma_enable(adev, false);
542 /* start the gfx rings and rlc compute queues */
543 r = cik_sdma_gfx_resume(adev);
546 r = cik_sdma_rlc_resume(adev);
554 * cik_sdma_ring_test_ring - simple async dma engine test
556 * @ring: amdgpu_ring structure holding ring information
558 * Test the DMA engine by writing using it to write an
559 * value to memory. (CIK).
560 * Returns 0 for success, error for failure.
562 static int cik_sdma_ring_test_ring(struct amdgpu_ring *ring)
564 struct amdgpu_device *adev = ring->adev;
571 r = amdgpu_wb_get(adev, &index);
573 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
577 gpu_addr = adev->wb.gpu_addr + (index * 4);
579 adev->wb.wb[index] = cpu_to_le32(tmp);
581 r = amdgpu_ring_alloc(ring, 5);
583 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
584 amdgpu_wb_free(adev, index);
587 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
588 amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
589 amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
590 amdgpu_ring_write(ring, 1); /* number of DWs to follow */
591 amdgpu_ring_write(ring, 0xDEADBEEF);
592 amdgpu_ring_commit(ring);
594 for (i = 0; i < adev->usec_timeout; i++) {
595 tmp = le32_to_cpu(adev->wb.wb[index]);
596 if (tmp == 0xDEADBEEF)
601 if (i < adev->usec_timeout) {
602 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
604 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
608 amdgpu_wb_free(adev, index);
614 * cik_sdma_ring_test_ib - test an IB on the DMA engine
616 * @ring: amdgpu_ring structure holding ring information
618 * Test a simple IB in the DMA ring (CIK).
619 * Returns 0 on success, error on failure.
621 static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring)
623 struct amdgpu_device *adev = ring->adev;
625 struct fence *f = NULL;
632 r = amdgpu_wb_get(adev, &index);
634 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
638 gpu_addr = adev->wb.gpu_addr + (index * 4);
640 adev->wb.wb[index] = cpu_to_le32(tmp);
641 memset(&ib, 0, sizeof(ib));
642 r = amdgpu_ib_get(adev, NULL, 256, &ib);
644 DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
648 ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
649 ib.ptr[1] = lower_32_bits(gpu_addr);
650 ib.ptr[2] = upper_32_bits(gpu_addr);
652 ib.ptr[4] = 0xDEADBEEF;
654 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, NULL, &f);
658 r = fence_wait(f, false);
660 DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
663 for (i = 0; i < adev->usec_timeout; i++) {
664 tmp = le32_to_cpu(adev->wb.wb[index]);
665 if (tmp == 0xDEADBEEF)
669 if (i < adev->usec_timeout) {
670 DRM_INFO("ib test on ring %d succeeded in %u usecs\n",
674 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
680 amdgpu_ib_free(adev, &ib, NULL);
683 amdgpu_wb_free(adev, index);
688 * cik_sdma_vm_copy_pages - update PTEs by copying them from the GART
690 * @ib: indirect buffer to fill with commands
691 * @pe: addr of the page entry
692 * @src: src addr to copy from
693 * @count: number of page entries to update
695 * Update PTEs by copying them from the GART using sDMA (CIK).
697 static void cik_sdma_vm_copy_pte(struct amdgpu_ib *ib,
698 uint64_t pe, uint64_t src,
702 unsigned bytes = count * 8;
703 if (bytes > 0x1FFFF8)
706 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY,
707 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
708 ib->ptr[ib->length_dw++] = bytes;
709 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
710 ib->ptr[ib->length_dw++] = lower_32_bits(src);
711 ib->ptr[ib->length_dw++] = upper_32_bits(src);
712 ib->ptr[ib->length_dw++] = lower_32_bits(pe);
713 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
722 * cik_sdma_vm_write_pages - update PTEs by writing them manually
724 * @ib: indirect buffer to fill with commands
725 * @pe: addr of the page entry
726 * @addr: dst addr to write into pe
727 * @count: number of page entries to update
728 * @incr: increase next addr by incr bytes
729 * @flags: access flags
731 * Update PTEs by writing them manually using sDMA (CIK).
733 static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib,
734 const dma_addr_t *pages_addr, uint64_t pe,
735 uint64_t addr, unsigned count,
736 uint32_t incr, uint32_t flags)
746 /* for non-physically contiguous pages (system) */
747 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE,
748 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
749 ib->ptr[ib->length_dw++] = pe;
750 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
751 ib->ptr[ib->length_dw++] = ndw;
752 for (; ndw > 0; ndw -= 2, --count, pe += 8) {
753 value = amdgpu_vm_map_gart(pages_addr, addr);
756 ib->ptr[ib->length_dw++] = value;
757 ib->ptr[ib->length_dw++] = upper_32_bits(value);
763 * cik_sdma_vm_set_pages - update the page tables using sDMA
765 * @ib: indirect buffer to fill with commands
766 * @pe: addr of the page entry
767 * @addr: dst addr to write into pe
768 * @count: number of page entries to update
769 * @incr: increase next addr by incr bytes
770 * @flags: access flags
772 * Update the page tables using sDMA (CIK).
774 static void cik_sdma_vm_set_pte_pde(struct amdgpu_ib *ib,
776 uint64_t addr, unsigned count,
777 uint32_t incr, uint32_t flags)
787 if (flags & AMDGPU_PTE_VALID)
792 /* for physically contiguous pages (vram) */
793 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0);
794 ib->ptr[ib->length_dw++] = pe; /* dst addr */
795 ib->ptr[ib->length_dw++] = upper_32_bits(pe);
796 ib->ptr[ib->length_dw++] = flags; /* mask */
797 ib->ptr[ib->length_dw++] = 0;
798 ib->ptr[ib->length_dw++] = value; /* value */
799 ib->ptr[ib->length_dw++] = upper_32_bits(value);
800 ib->ptr[ib->length_dw++] = incr; /* increment size */
801 ib->ptr[ib->length_dw++] = 0;
802 ib->ptr[ib->length_dw++] = ndw; /* number of entries */
811 * cik_sdma_vm_pad_ib - pad the IB to the required number of dw
813 * @ib: indirect buffer to fill with padding
816 static void cik_sdma_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
818 struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
822 pad_count = (8 - (ib->length_dw & 0x7)) % 8;
823 for (i = 0; i < pad_count; i++)
824 if (sdma && sdma->burst_nop && (i == 0))
825 ib->ptr[ib->length_dw++] =
826 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0) |
827 SDMA_NOP_COUNT(pad_count - 1);
829 ib->ptr[ib->length_dw++] =
830 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0);
834 * cik_sdma_ring_emit_pipeline_sync - sync the pipeline
836 * @ring: amdgpu_ring pointer
838 * Make sure all previous operations are completed (CIK).
840 static void cik_sdma_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
842 uint32_t seq = ring->fence_drv.sync_seq;
843 uint64_t addr = ring->fence_drv.gpu_addr;
846 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0,
847 SDMA_POLL_REG_MEM_EXTRA_OP(0) |
848 SDMA_POLL_REG_MEM_EXTRA_FUNC(3) | /* equal */
849 SDMA_POLL_REG_MEM_EXTRA_M));
850 amdgpu_ring_write(ring, addr & 0xfffffffc);
851 amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
852 amdgpu_ring_write(ring, seq); /* reference */
853 amdgpu_ring_write(ring, 0xfffffff); /* mask */
854 amdgpu_ring_write(ring, (0xfff << 16) | 4); /* retry count, poll interval */
858 * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA
860 * @ring: amdgpu_ring pointer
861 * @vm: amdgpu_vm pointer
863 * Update the page table base and flush the VM TLB
866 static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
867 unsigned vm_id, uint64_t pd_addr)
869 u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) |
870 SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */
872 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
874 amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id));
876 amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8));
878 amdgpu_ring_write(ring, pd_addr >> 12);
881 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
882 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
883 amdgpu_ring_write(ring, 1 << vm_id);
885 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
886 amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
887 amdgpu_ring_write(ring, 0);
888 amdgpu_ring_write(ring, 0); /* reference */
889 amdgpu_ring_write(ring, 0); /* mask */
890 amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
893 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
898 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
899 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100);
900 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100);
902 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET);
905 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data);
907 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET);
910 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data);
914 static void cik_enable_sdma_mgls(struct amdgpu_device *adev,
919 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
920 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
923 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
925 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
928 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
930 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
933 WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
935 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
938 WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
942 static int cik_sdma_early_init(void *handle)
944 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
946 adev->sdma.num_instances = SDMA_MAX_INSTANCE;
948 cik_sdma_set_ring_funcs(adev);
949 cik_sdma_set_irq_funcs(adev);
950 cik_sdma_set_buffer_funcs(adev);
951 cik_sdma_set_vm_pte_funcs(adev);
956 static int cik_sdma_sw_init(void *handle)
958 struct amdgpu_ring *ring;
959 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
962 r = cik_sdma_init_microcode(adev);
964 DRM_ERROR("Failed to load sdma firmware!\n");
968 /* SDMA trap event */
969 r = amdgpu_irq_add_id(adev, 224, &adev->sdma.trap_irq);
973 /* SDMA Privileged inst */
974 r = amdgpu_irq_add_id(adev, 241, &adev->sdma.illegal_inst_irq);
978 /* SDMA Privileged inst */
979 r = amdgpu_irq_add_id(adev, 247, &adev->sdma.illegal_inst_irq);
983 for (i = 0; i < adev->sdma.num_instances; i++) {
984 ring = &adev->sdma.instance[i].ring;
985 ring->ring_obj = NULL;
986 sprintf(ring->name, "sdma%d", i);
987 r = amdgpu_ring_init(adev, ring, 1024,
988 SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf,
989 &adev->sdma.trap_irq,
991 AMDGPU_SDMA_IRQ_TRAP0 : AMDGPU_SDMA_IRQ_TRAP1,
992 AMDGPU_RING_TYPE_SDMA);
1000 static int cik_sdma_sw_fini(void *handle)
1002 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1005 for (i = 0; i < adev->sdma.num_instances; i++)
1006 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1011 static int cik_sdma_hw_init(void *handle)
1014 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1016 r = cik_sdma_start(adev);
1023 static int cik_sdma_hw_fini(void *handle)
1025 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1027 cik_sdma_enable(adev, false);
1032 static int cik_sdma_suspend(void *handle)
1034 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1036 return cik_sdma_hw_fini(adev);
1039 static int cik_sdma_resume(void *handle)
1041 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1043 return cik_sdma_hw_init(adev);
1046 static bool cik_sdma_is_idle(void *handle)
1048 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1049 u32 tmp = RREG32(mmSRBM_STATUS2);
1051 if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
1052 SRBM_STATUS2__SDMA1_BUSY_MASK))
1058 static int cik_sdma_wait_for_idle(void *handle)
1062 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1064 for (i = 0; i < adev->usec_timeout; i++) {
1065 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1066 SRBM_STATUS2__SDMA1_BUSY_MASK);
1075 static int cik_sdma_soft_reset(void *handle)
1077 u32 srbm_soft_reset = 0;
1078 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1079 u32 tmp = RREG32(mmSRBM_STATUS2);
1081 if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1083 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1084 tmp |= SDMA0_F32_CNTL__HALT_MASK;
1085 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1086 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1088 if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1090 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1091 tmp |= SDMA0_F32_CNTL__HALT_MASK;
1092 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1093 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1096 if (srbm_soft_reset) {
1097 tmp = RREG32(mmSRBM_SOFT_RESET);
1098 tmp |= srbm_soft_reset;
1099 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1100 WREG32(mmSRBM_SOFT_RESET, tmp);
1101 tmp = RREG32(mmSRBM_SOFT_RESET);
1105 tmp &= ~srbm_soft_reset;
1106 WREG32(mmSRBM_SOFT_RESET, tmp);
1107 tmp = RREG32(mmSRBM_SOFT_RESET);
1109 /* Wait a little for things to settle down */
1116 static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev,
1117 struct amdgpu_irq_src *src,
1119 enum amdgpu_interrupt_state state)
1124 case AMDGPU_SDMA_IRQ_TRAP0:
1126 case AMDGPU_IRQ_STATE_DISABLE:
1127 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1128 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1129 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1131 case AMDGPU_IRQ_STATE_ENABLE:
1132 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1133 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1134 WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1140 case AMDGPU_SDMA_IRQ_TRAP1:
1142 case AMDGPU_IRQ_STATE_DISABLE:
1143 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1144 sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1145 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1147 case AMDGPU_IRQ_STATE_ENABLE:
1148 sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1149 sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1150 WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1162 static int cik_sdma_process_trap_irq(struct amdgpu_device *adev,
1163 struct amdgpu_irq_src *source,
1164 struct amdgpu_iv_entry *entry)
1166 u8 instance_id, queue_id;
1168 instance_id = (entry->ring_id & 0x3) >> 0;
1169 queue_id = (entry->ring_id & 0xc) >> 2;
1170 DRM_DEBUG("IH: SDMA trap\n");
1171 switch (instance_id) {
1175 amdgpu_fence_process(&adev->sdma.instance[0].ring);
1188 amdgpu_fence_process(&adev->sdma.instance[1].ring);
1203 static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev,
1204 struct amdgpu_irq_src *source,
1205 struct amdgpu_iv_entry *entry)
1207 DRM_ERROR("Illegal instruction in SDMA command stream\n");
1208 schedule_work(&adev->reset_work);
1212 static int cik_sdma_set_clockgating_state(void *handle,
1213 enum amd_clockgating_state state)
1216 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1218 if (state == AMD_CG_STATE_GATE)
1221 cik_enable_sdma_mgcg(adev, gate);
1222 cik_enable_sdma_mgls(adev, gate);
1227 static int cik_sdma_set_powergating_state(void *handle,
1228 enum amd_powergating_state state)
1233 const struct amd_ip_funcs cik_sdma_ip_funcs = {
1235 .early_init = cik_sdma_early_init,
1237 .sw_init = cik_sdma_sw_init,
1238 .sw_fini = cik_sdma_sw_fini,
1239 .hw_init = cik_sdma_hw_init,
1240 .hw_fini = cik_sdma_hw_fini,
1241 .suspend = cik_sdma_suspend,
1242 .resume = cik_sdma_resume,
1243 .is_idle = cik_sdma_is_idle,
1244 .wait_for_idle = cik_sdma_wait_for_idle,
1245 .soft_reset = cik_sdma_soft_reset,
1246 .set_clockgating_state = cik_sdma_set_clockgating_state,
1247 .set_powergating_state = cik_sdma_set_powergating_state,
1250 static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
1251 .get_rptr = cik_sdma_ring_get_rptr,
1252 .get_wptr = cik_sdma_ring_get_wptr,
1253 .set_wptr = cik_sdma_ring_set_wptr,
1255 .emit_ib = cik_sdma_ring_emit_ib,
1256 .emit_fence = cik_sdma_ring_emit_fence,
1257 .emit_pipeline_sync = cik_sdma_ring_emit_pipeline_sync,
1258 .emit_vm_flush = cik_sdma_ring_emit_vm_flush,
1259 .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
1260 .emit_hdp_invalidate = cik_sdma_ring_emit_hdp_invalidate,
1261 .test_ring = cik_sdma_ring_test_ring,
1262 .test_ib = cik_sdma_ring_test_ib,
1263 .insert_nop = cik_sdma_ring_insert_nop,
1264 .pad_ib = cik_sdma_ring_pad_ib,
1267 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)
1271 for (i = 0; i < adev->sdma.num_instances; i++)
1272 adev->sdma.instance[i].ring.funcs = &cik_sdma_ring_funcs;
1275 static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = {
1276 .set = cik_sdma_set_trap_irq_state,
1277 .process = cik_sdma_process_trap_irq,
1280 static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = {
1281 .process = cik_sdma_process_illegal_inst_irq,
1284 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev)
1286 adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1287 adev->sdma.trap_irq.funcs = &cik_sdma_trap_irq_funcs;
1288 adev->sdma.illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs;
1292 * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine
1294 * @ring: amdgpu_ring structure holding ring information
1295 * @src_offset: src GPU address
1296 * @dst_offset: dst GPU address
1297 * @byte_count: number of bytes to xfer
1299 * Copy GPU buffers using the DMA engine (CIK).
1300 * Used by the amdgpu ttm implementation to move pages if
1301 * registered as the asic copy callback.
1303 static void cik_sdma_emit_copy_buffer(struct amdgpu_ib *ib,
1304 uint64_t src_offset,
1305 uint64_t dst_offset,
1306 uint32_t byte_count)
1308 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0);
1309 ib->ptr[ib->length_dw++] = byte_count;
1310 ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1311 ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1312 ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1313 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1314 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1318 * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine
1320 * @ring: amdgpu_ring structure holding ring information
1321 * @src_data: value to write to buffer
1322 * @dst_offset: dst GPU address
1323 * @byte_count: number of bytes to xfer
1325 * Fill GPU buffers using the DMA engine (CIK).
1327 static void cik_sdma_emit_fill_buffer(struct amdgpu_ib *ib,
1329 uint64_t dst_offset,
1330 uint32_t byte_count)
1332 ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0);
1333 ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1334 ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1335 ib->ptr[ib->length_dw++] = src_data;
1336 ib->ptr[ib->length_dw++] = byte_count;
1339 static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = {
1340 .copy_max_bytes = 0x1fffff,
1342 .emit_copy_buffer = cik_sdma_emit_copy_buffer,
1344 .fill_max_bytes = 0x1fffff,
1346 .emit_fill_buffer = cik_sdma_emit_fill_buffer,
1349 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev)
1351 if (adev->mman.buffer_funcs == NULL) {
1352 adev->mman.buffer_funcs = &cik_sdma_buffer_funcs;
1353 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1357 static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = {
1358 .copy_pte = cik_sdma_vm_copy_pte,
1359 .write_pte = cik_sdma_vm_write_pte,
1360 .set_pte_pde = cik_sdma_vm_set_pte_pde,
1363 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev)
1367 if (adev->vm_manager.vm_pte_funcs == NULL) {
1368 adev->vm_manager.vm_pte_funcs = &cik_sdma_vm_pte_funcs;
1369 for (i = 0; i < adev->sdma.num_instances; i++)
1370 adev->vm_manager.vm_pte_rings[i] =
1371 &adev->sdma.instance[i].ring;
1373 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances;