1 /*
2  * Copyright 2020 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  */
23 
24 #include <linux/delay.h>
25 #include <linux/firmware.h>
26 #include <linux/module.h>
27 #include <linux/pci.h>
28 
29 #include "amdgpu.h"
30 #include "amdgpu_ucode.h"
31 #include "amdgpu_trace.h"
32 
33 #include "gc/gc_11_0_0_offset.h"
34 #include "gc/gc_11_0_0_sh_mask.h"
35 #include "gc/gc_11_0_0_default.h"
36 #include "hdp/hdp_6_0_0_offset.h"
37 #include "ivsrcid/gfx/irqsrcs_gfx_11_0_0.h"
38 
39 #include "soc15_common.h"
40 #include "soc15.h"
41 #include "sdma_v6_0_0_pkt_open.h"
42 #include "nbio_v4_3.h"
43 #include "sdma_common.h"
44 #include "sdma_v6_0.h"
45 #include "v11_structs.h"
46 
47 MODULE_FIRMWARE("amdgpu/sdma_6_0_0.bin");
48 MODULE_FIRMWARE("amdgpu/sdma_6_0_1.bin");
49 MODULE_FIRMWARE("amdgpu/sdma_6_0_2.bin");
50 MODULE_FIRMWARE("amdgpu/sdma_6_0_3.bin");
51 MODULE_FIRMWARE("amdgpu/sdma_6_1_0.bin");
52 
53 #define SDMA1_REG_OFFSET 0x600
54 #define SDMA0_HYP_DEC_REG_START 0x5880
55 #define SDMA0_HYP_DEC_REG_END 0x589a
56 #define SDMA1_HYP_DEC_REG_OFFSET 0x20
57 
58 static void sdma_v6_0_set_ring_funcs(struct amdgpu_device *adev);
59 static void sdma_v6_0_set_buffer_funcs(struct amdgpu_device *adev);
60 static void sdma_v6_0_set_vm_pte_funcs(struct amdgpu_device *adev);
61 static void sdma_v6_0_set_irq_funcs(struct amdgpu_device *adev);
62 static int sdma_v6_0_start(struct amdgpu_device *adev);
63 
sdma_v6_0_get_reg_offset(struct amdgpu_device * adev,u32 instance,u32 internal_offset)64 static u32 sdma_v6_0_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
65 {
66 	u32 base;
67 
68 	if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
69 	    internal_offset <= SDMA0_HYP_DEC_REG_END) {
70 		base = adev->reg_offset[GC_HWIP][0][1];
71 		if (instance != 0)
72 			internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance;
73 	} else {
74 		base = adev->reg_offset[GC_HWIP][0][0];
75 		if (instance == 1)
76 			internal_offset += SDMA1_REG_OFFSET;
77 	}
78 
79 	return base + internal_offset;
80 }
81 
sdma_v6_0_ring_init_cond_exec(struct amdgpu_ring * ring)82 static unsigned sdma_v6_0_ring_init_cond_exec(struct amdgpu_ring *ring)
83 {
84 	unsigned ret;
85 
86 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COND_EXE));
87 	amdgpu_ring_write(ring, lower_32_bits(ring->cond_exe_gpu_addr));
88 	amdgpu_ring_write(ring, upper_32_bits(ring->cond_exe_gpu_addr));
89 	amdgpu_ring_write(ring, 1);
90 	ret = ring->wptr & ring->buf_mask;/* this is the offset we need patch later */
91 	amdgpu_ring_write(ring, 0x55aa55aa);/* insert dummy here and patch it later */
92 
93 	return ret;
94 }
95 
sdma_v6_0_ring_patch_cond_exec(struct amdgpu_ring * ring,unsigned offset)96 static void sdma_v6_0_ring_patch_cond_exec(struct amdgpu_ring *ring,
97 					   unsigned offset)
98 {
99 	unsigned cur;
100 
101 	BUG_ON(offset > ring->buf_mask);
102 	BUG_ON(ring->ring[offset] != 0x55aa55aa);
103 
104 	cur = (ring->wptr - 1) & ring->buf_mask;
105 	if (cur > offset)
106 		ring->ring[offset] = cur - offset;
107 	else
108 		ring->ring[offset] = (ring->buf_mask + 1) - offset + cur;
109 }
110 
111 /**
112  * sdma_v6_0_ring_get_rptr - get the current read pointer
113  *
114  * @ring: amdgpu ring pointer
115  *
116  * Get the current rptr from the hardware.
117  */
sdma_v6_0_ring_get_rptr(struct amdgpu_ring * ring)118 static uint64_t sdma_v6_0_ring_get_rptr(struct amdgpu_ring *ring)
119 {
120 	u64 *rptr;
121 
122 	/* XXX check if swapping is necessary on BE */
123 	rptr = (u64 *)ring->rptr_cpu_addr;
124 
125 	DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
126 	return ((*rptr) >> 2);
127 }
128 
129 /**
130  * sdma_v6_0_ring_get_wptr - get the current write pointer
131  *
132  * @ring: amdgpu ring pointer
133  *
134  * Get the current wptr from the hardware.
135  */
sdma_v6_0_ring_get_wptr(struct amdgpu_ring * ring)136 static uint64_t sdma_v6_0_ring_get_wptr(struct amdgpu_ring *ring)
137 {
138 	u64 wptr = 0;
139 
140 	if (ring->use_doorbell) {
141 		/* XXX check if swapping is necessary on BE */
142 		wptr = READ_ONCE(*((u64 *)ring->wptr_cpu_addr));
143 		DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
144 	}
145 
146 	return wptr >> 2;
147 }
148 
149 /**
150  * sdma_v6_0_ring_set_wptr - commit the write pointer
151  *
152  * @ring: amdgpu ring pointer
153  *
154  * Write the wptr back to the hardware.
155  */
sdma_v6_0_ring_set_wptr(struct amdgpu_ring * ring)156 static void sdma_v6_0_ring_set_wptr(struct amdgpu_ring *ring)
157 {
158 	struct amdgpu_device *adev = ring->adev;
159 	uint32_t *wptr_saved;
160 	uint32_t *is_queue_unmap;
161 	uint64_t aggregated_db_index;
162 	uint32_t mqd_size = adev->mqds[AMDGPU_HW_IP_DMA].mqd_size;
163 
164 	DRM_DEBUG("Setting write pointer\n");
165 
166 	if (ring->is_mes_queue) {
167 		wptr_saved = (uint32_t *)(ring->mqd_ptr + mqd_size);
168 		is_queue_unmap = (uint32_t *)(ring->mqd_ptr + mqd_size +
169 					      sizeof(uint32_t));
170 		aggregated_db_index =
171 			amdgpu_mes_get_aggregated_doorbell_index(adev,
172 							 ring->hw_prio);
173 
174 		atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
175 			     ring->wptr << 2);
176 		*wptr_saved = ring->wptr << 2;
177 		if (*is_queue_unmap) {
178 			WDOORBELL64(aggregated_db_index, ring->wptr << 2);
179 			DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
180 					ring->doorbell_index, ring->wptr << 2);
181 			WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
182 		} else {
183 			DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
184 					ring->doorbell_index, ring->wptr << 2);
185 			WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
186 
187 			if (*is_queue_unmap)
188 				WDOORBELL64(aggregated_db_index,
189 					    ring->wptr << 2);
190 		}
191 	} else {
192 		if (ring->use_doorbell) {
193 			DRM_DEBUG("Using doorbell -- "
194 				  "wptr_offs == 0x%08x "
195 				  "lower_32_bits(ring->wptr) << 2 == 0x%08x "
196 				  "upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
197 				  ring->wptr_offs,
198 				  lower_32_bits(ring->wptr << 2),
199 				  upper_32_bits(ring->wptr << 2));
200 			/* XXX check if swapping is necessary on BE */
201 			atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
202 				     ring->wptr << 2);
203 			DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
204 				  ring->doorbell_index, ring->wptr << 2);
205 			WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
206 		} else {
207 			DRM_DEBUG("Not using doorbell -- "
208 				  "regSDMA%i_GFX_RB_WPTR == 0x%08x "
209 				  "regSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
210 				  ring->me,
211 				  lower_32_bits(ring->wptr << 2),
212 				  ring->me,
213 				  upper_32_bits(ring->wptr << 2));
214 			WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev,
215 				        ring->me, regSDMA0_QUEUE0_RB_WPTR),
216 					lower_32_bits(ring->wptr << 2));
217 			WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev,
218 				        ring->me, regSDMA0_QUEUE0_RB_WPTR_HI),
219 					upper_32_bits(ring->wptr << 2));
220 		}
221 	}
222 }
223 
sdma_v6_0_ring_insert_nop(struct amdgpu_ring * ring,uint32_t count)224 static void sdma_v6_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
225 {
226 	struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
227 	int i;
228 
229 	for (i = 0; i < count; i++)
230 		if (sdma && sdma->burst_nop && (i == 0))
231 			amdgpu_ring_write(ring, ring->funcs->nop |
232 				SDMA_PKT_NOP_HEADER_COUNT(count - 1));
233 		else
234 			amdgpu_ring_write(ring, ring->funcs->nop);
235 }
236 
237 /**
238  * sdma_v6_0_ring_emit_ib - Schedule an IB on the DMA engine
239  *
240  * @ring: amdgpu ring pointer
241  * @ib: IB object to schedule
242  * @flags: unused
243  * @job: job to retrieve vmid from
244  *
245  * Schedule an IB in the DMA ring.
246  */
sdma_v6_0_ring_emit_ib(struct amdgpu_ring * ring,struct amdgpu_job * job,struct amdgpu_ib * ib,uint32_t flags)247 static void sdma_v6_0_ring_emit_ib(struct amdgpu_ring *ring,
248 				   struct amdgpu_job *job,
249 				   struct amdgpu_ib *ib,
250 				   uint32_t flags)
251 {
252 	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
253 	uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
254 
255 	/* An IB packet must end on a 8 DW boundary--the next dword
256 	 * must be on a 8-dword boundary. Our IB packet below is 6
257 	 * dwords long, thus add x number of NOPs, such that, in
258 	 * modular arithmetic,
259 	 * wptr + 6 + x = 8k, k >= 0, which in C is,
260 	 * (wptr + 6 + x) % 8 = 0.
261 	 * The expression below, is a solution of x.
262 	 */
263 	sdma_v6_0_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
264 
265 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_INDIRECT) |
266 			  SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
267 	/* base must be 32 byte aligned */
268 	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
269 	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
270 	amdgpu_ring_write(ring, ib->length_dw);
271 	amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
272 	amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
273 }
274 
275 /**
276  * sdma_v6_0_ring_emit_mem_sync - flush the IB by graphics cache rinse
277  *
278  * @ring: amdgpu ring pointer
279  *
280  * flush the IB by graphics cache rinse.
281  */
sdma_v6_0_ring_emit_mem_sync(struct amdgpu_ring * ring)282 static void sdma_v6_0_ring_emit_mem_sync(struct amdgpu_ring *ring)
283 {
284         uint32_t gcr_cntl = SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB | SDMA_GCR_GLM_INV |
285                             SDMA_GCR_GL1_INV | SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
286                             SDMA_GCR_GLI_INV(1);
287 
288         /* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
289         amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_GCR_REQ));
290         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
291         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
292                           SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
293         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
294                           SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
295         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
296                           SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
297 }
298 
299 
300 /**
301  * sdma_v6_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
302  *
303  * @ring: amdgpu ring pointer
304  *
305  * Emit an hdp flush packet on the requested DMA ring.
306  */
sdma_v6_0_ring_emit_hdp_flush(struct amdgpu_ring * ring)307 static void sdma_v6_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
308 {
309 	struct amdgpu_device *adev = ring->adev;
310 	u32 ref_and_mask = 0;
311 	const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
312 
313 	ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
314 
315 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_POLL_REGMEM) |
316 			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
317 			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
318 	amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
319 	amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
320 	amdgpu_ring_write(ring, ref_and_mask); /* reference */
321 	amdgpu_ring_write(ring, ref_and_mask); /* mask */
322 	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
323 			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
324 }
325 
326 /**
327  * sdma_v6_0_ring_emit_fence - emit a fence on the DMA ring
328  *
329  * @ring: amdgpu ring pointer
330  * @addr: address
331  * @seq: fence seq number
332  * @flags: fence flags
333  *
334  * Add a DMA fence packet to the ring to write
335  * the fence seq number and DMA trap packet to generate
336  * an interrupt if needed.
337  */
sdma_v6_0_ring_emit_fence(struct amdgpu_ring * ring,u64 addr,u64 seq,unsigned flags)338 static void sdma_v6_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
339 				      unsigned flags)
340 {
341 	bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
342 	/* write the fence */
343 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_FENCE) |
344 			  SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
345 	/* zero in first two bits */
346 	BUG_ON(addr & 0x3);
347 	amdgpu_ring_write(ring, lower_32_bits(addr));
348 	amdgpu_ring_write(ring, upper_32_bits(addr));
349 	amdgpu_ring_write(ring, lower_32_bits(seq));
350 
351 	/* optionally write high bits as well */
352 	if (write64bit) {
353 		addr += 4;
354 		amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_FENCE) |
355 				  SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
356 		/* zero in first two bits */
357 		BUG_ON(addr & 0x3);
358 		amdgpu_ring_write(ring, lower_32_bits(addr));
359 		amdgpu_ring_write(ring, upper_32_bits(addr));
360 		amdgpu_ring_write(ring, upper_32_bits(seq));
361 	}
362 
363 	if (flags & AMDGPU_FENCE_FLAG_INT) {
364 		uint32_t ctx = ring->is_mes_queue ?
365 			(ring->hw_queue_id | AMDGPU_FENCE_MES_QUEUE_FLAG) : 0;
366 		/* generate an interrupt */
367 		amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_TRAP));
368 		amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(ctx));
369 	}
370 }
371 
372 /**
373  * sdma_v6_0_gfx_stop - stop the gfx async dma engines
374  *
375  * @adev: amdgpu_device pointer
376  *
377  * Stop the gfx async dma ring buffers.
378  */
sdma_v6_0_gfx_stop(struct amdgpu_device * adev)379 static void sdma_v6_0_gfx_stop(struct amdgpu_device *adev)
380 {
381 	u32 rb_cntl, ib_cntl;
382 	int i;
383 
384 	amdgpu_sdma_unset_buffer_funcs_helper(adev);
385 
386 	for (i = 0; i < adev->sdma.num_instances; i++) {
387 		rb_cntl = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL));
388 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_ENABLE, 0);
389 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
390 		ib_cntl = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL));
391 		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_ENABLE, 0);
392 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL), ib_cntl);
393 	}
394 }
395 
396 /**
397  * sdma_v6_0_rlc_stop - stop the compute async dma engines
398  *
399  * @adev: amdgpu_device pointer
400  *
401  * Stop the compute async dma queues.
402  */
sdma_v6_0_rlc_stop(struct amdgpu_device * adev)403 static void sdma_v6_0_rlc_stop(struct amdgpu_device *adev)
404 {
405 	/* XXX todo */
406 }
407 
408 /**
409  * sdma_v6_0_ctxempty_int_enable - enable or disable context empty interrupts
410  *
411  * @adev: amdgpu_device pointer
412  * @enable: enable/disable context switching due to queue empty conditions
413  *
414  * Enable or disable the async dma engines queue empty context switch.
415  */
sdma_v6_0_ctxempty_int_enable(struct amdgpu_device * adev,bool enable)416 static void sdma_v6_0_ctxempty_int_enable(struct amdgpu_device *adev, bool enable)
417 {
418 	u32 f32_cntl;
419 	int i;
420 
421 	if (!amdgpu_sriov_vf(adev)) {
422 		for (i = 0; i < adev->sdma.num_instances; i++) {
423 			f32_cntl = RREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_CNTL));
424 			f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
425 					CTXEMPTY_INT_ENABLE, enable ? 1 : 0);
426 			WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_CNTL), f32_cntl);
427 		}
428 	}
429 }
430 
431 /**
432  * sdma_v6_0_enable - stop the async dma engines
433  *
434  * @adev: amdgpu_device pointer
435  * @enable: enable/disable the DMA MEs.
436  *
437  * Halt or unhalt the async dma engines.
438  */
sdma_v6_0_enable(struct amdgpu_device * adev,bool enable)439 static void sdma_v6_0_enable(struct amdgpu_device *adev, bool enable)
440 {
441 	u32 f32_cntl;
442 	int i;
443 
444 	if (!enable) {
445 		sdma_v6_0_gfx_stop(adev);
446 		sdma_v6_0_rlc_stop(adev);
447 	}
448 
449 	if (amdgpu_sriov_vf(adev))
450 		return;
451 
452 	for (i = 0; i < adev->sdma.num_instances; i++) {
453 		f32_cntl = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL));
454 		f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
455 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL), f32_cntl);
456 	}
457 }
458 
459 /**
460  * sdma_v6_0_gfx_resume - setup and start the async dma engines
461  *
462  * @adev: amdgpu_device pointer
463  *
464  * Set up the gfx DMA ring buffers and enable them.
465  * Returns 0 for success, error for failure.
466  */
sdma_v6_0_gfx_resume(struct amdgpu_device * adev)467 static int sdma_v6_0_gfx_resume(struct amdgpu_device *adev)
468 {
469 	struct amdgpu_ring *ring;
470 	u32 rb_cntl, ib_cntl;
471 	u32 rb_bufsz;
472 	u32 doorbell;
473 	u32 doorbell_offset;
474 	u32 temp;
475 	u64 wptr_gpu_addr;
476 	int i, r;
477 
478 	for (i = 0; i < adev->sdma.num_instances; i++) {
479 		ring = &adev->sdma.instance[i].ring;
480 
481 		if (!amdgpu_sriov_vf(adev))
482 			WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
483 
484 		/* Set ring buffer size in dwords */
485 		rb_bufsz = order_base_2(ring->ring_size / 4);
486 		rb_cntl = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL));
487 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SIZE, rb_bufsz);
488 #ifdef __BIG_ENDIAN
489 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_SWAP_ENABLE, 1);
490 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL,
491 					RPTR_WRITEBACK_SWAP_ENABLE, 1);
492 #endif
493 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_PRIV, 1);
494 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
495 
496 		/* Initialize the ring buffer's read and write pointers */
497 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR), 0);
498 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR_HI), 0);
499 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR), 0);
500 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_HI), 0);
501 
502 		/* setup the wptr shadow polling */
503 		wptr_gpu_addr = ring->wptr_gpu_addr;
504 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_LO),
505 		       lower_32_bits(wptr_gpu_addr));
506 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_POLL_ADDR_HI),
507 		       upper_32_bits(wptr_gpu_addr));
508 
509 		/* set the wb address whether it's enabled or not */
510 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR_ADDR_HI),
511 		       upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
512 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_RPTR_ADDR_LO),
513 		       lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
514 
515 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
516 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, WPTR_POLL_ENABLE, 0);
517 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, F32_WPTR_POLL_ENABLE, 1);
518 
519 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_BASE), ring->gpu_addr >> 8);
520 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_BASE_HI), ring->gpu_addr >> 40);
521 
522 		ring->wptr = 0;
523 
524 		/* before programing wptr to a less value, need set minor_ptr_update first */
525 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 1);
526 
527 		if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
528 			WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR), lower_32_bits(ring->wptr) << 2);
529 			WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
530 		}
531 
532 		doorbell = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL));
533 		doorbell_offset = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL_OFFSET));
534 
535 		if (ring->use_doorbell) {
536 			doorbell = REG_SET_FIELD(doorbell, SDMA0_QUEUE0_DOORBELL, ENABLE, 1);
537 			doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_QUEUE0_DOORBELL_OFFSET,
538 					OFFSET, ring->doorbell_index);
539 		} else {
540 			doorbell = REG_SET_FIELD(doorbell, SDMA0_QUEUE0_DOORBELL, ENABLE, 0);
541 		}
542 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL), doorbell);
543 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_DOORBELL_OFFSET), doorbell_offset);
544 
545 		if (i == 0)
546 			adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
547 						      ring->doorbell_index,
548 						      adev->doorbell_index.sdma_doorbell_range * adev->sdma.num_instances);
549 
550 		if (amdgpu_sriov_vf(adev))
551 			sdma_v6_0_ring_set_wptr(ring);
552 
553 		/* set minor_ptr_update to 0 after wptr programed */
554 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 0);
555 
556 		/* Set up RESP_MODE to non-copy addresses */
557 		temp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UTCL1_CNTL));
558 		temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
559 		temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
560 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UTCL1_CNTL), temp);
561 
562 		/* program default cache read and write policy */
563 		temp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UTCL1_PAGE));
564 		/* clean read policy and write policy bits */
565 		temp &= 0xFF0FFF;
566 		temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
567 			 (CACHE_WRITE_POLICY_L2__DEFAULT << 14) |
568 			 SDMA0_UTCL1_PAGE__LLC_NOALLOC_MASK);
569 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UTCL1_PAGE), temp);
570 
571 		if (!amdgpu_sriov_vf(adev)) {
572 			/* unhalt engine */
573 			temp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL));
574 			temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
575 			temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, TH1_RESET, 0);
576 			WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL), temp);
577 		}
578 
579 		/* enable DMA RB */
580 		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_QUEUE0_RB_CNTL, RB_ENABLE, 1);
581 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_RB_CNTL), rb_cntl);
582 
583 		ib_cntl = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL));
584 		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_ENABLE, 1);
585 #ifdef __BIG_ENDIAN
586 		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_QUEUE0_IB_CNTL, IB_SWAP_ENABLE, 1);
587 #endif
588 		/* enable DMA IBs */
589 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_IB_CNTL), ib_cntl);
590 
591 		if (amdgpu_sriov_vf(adev))
592 			sdma_v6_0_enable(adev, true);
593 
594 		r = amdgpu_ring_test_helper(ring);
595 		if (r)
596 			return r;
597 
598 		if (adev->mman.buffer_funcs_ring == ring)
599 			amdgpu_ttm_set_buffer_funcs_status(adev, true);
600 	}
601 
602 	return 0;
603 }
604 
605 /**
606  * sdma_v6_0_rlc_resume - setup and start the async dma engines
607  *
608  * @adev: amdgpu_device pointer
609  *
610  * Set up the compute DMA queues and enable them.
611  * Returns 0 for success, error for failure.
612  */
sdma_v6_0_rlc_resume(struct amdgpu_device * adev)613 static int sdma_v6_0_rlc_resume(struct amdgpu_device *adev)
614 {
615 	return 0;
616 }
617 
618 /**
619  * sdma_v6_0_load_microcode - load the sDMA ME ucode
620  *
621  * @adev: amdgpu_device pointer
622  *
623  * Loads the sDMA0/1 ucode.
624  * Returns 0 for success, -EINVAL if the ucode is not available.
625  */
sdma_v6_0_load_microcode(struct amdgpu_device * adev)626 static int sdma_v6_0_load_microcode(struct amdgpu_device *adev)
627 {
628 	const struct sdma_firmware_header_v2_0 *hdr;
629 	const __le32 *fw_data;
630 	u32 fw_size;
631 	int i, j;
632 	bool use_broadcast;
633 
634 	/* halt the MEs */
635 	sdma_v6_0_enable(adev, false);
636 
637 	if (!adev->sdma.instance[0].fw)
638 		return -EINVAL;
639 
640 	/* use broadcast mode to load SDMA microcode by default */
641 	use_broadcast = true;
642 
643 	if (use_broadcast) {
644 		dev_info(adev->dev, "Use broadcast method to load SDMA firmware\n");
645 		/* load Control Thread microcode */
646 		hdr = (const struct sdma_firmware_header_v2_0 *)adev->sdma.instance[0].fw->data;
647 		amdgpu_ucode_print_sdma_hdr(&hdr->header);
648 		fw_size = le32_to_cpu(hdr->ctx_jt_offset + hdr->ctx_jt_size) / 4;
649 
650 		fw_data = (const __le32 *)
651 			(adev->sdma.instance[0].fw->data +
652 				le32_to_cpu(hdr->header.ucode_array_offset_bytes));
653 
654 		WREG32(sdma_v6_0_get_reg_offset(adev, 0, regSDMA0_BROADCAST_UCODE_ADDR), 0);
655 
656 		for (j = 0; j < fw_size; j++) {
657 			if (amdgpu_emu_mode == 1 && j % 500 == 0)
658 				msleep(1);
659 			WREG32(sdma_v6_0_get_reg_offset(adev, 0, regSDMA0_BROADCAST_UCODE_DATA), le32_to_cpup(fw_data++));
660 		}
661 
662 		/* load Context Switch microcode */
663 		fw_size = le32_to_cpu(hdr->ctl_jt_offset + hdr->ctl_jt_size) / 4;
664 
665 		fw_data = (const __le32 *)
666 			(adev->sdma.instance[0].fw->data +
667 				le32_to_cpu(hdr->ctl_ucode_offset));
668 
669 		WREG32(sdma_v6_0_get_reg_offset(adev, 0, regSDMA0_BROADCAST_UCODE_ADDR), 0x8000);
670 
671 		for (j = 0; j < fw_size; j++) {
672 			if (amdgpu_emu_mode == 1 && j % 500 == 0)
673 				msleep(1);
674 			WREG32(sdma_v6_0_get_reg_offset(adev, 0, regSDMA0_BROADCAST_UCODE_DATA), le32_to_cpup(fw_data++));
675 		}
676 	} else {
677 		dev_info(adev->dev, "Use legacy method to load SDMA firmware\n");
678 		for (i = 0; i < adev->sdma.num_instances; i++) {
679 			/* load Control Thread microcode */
680 			hdr = (const struct sdma_firmware_header_v2_0 *)adev->sdma.instance[0].fw->data;
681 			amdgpu_ucode_print_sdma_hdr(&hdr->header);
682 			fw_size = le32_to_cpu(hdr->ctx_jt_offset + hdr->ctx_jt_size) / 4;
683 
684 			fw_data = (const __le32 *)
685 				(adev->sdma.instance[0].fw->data +
686 					le32_to_cpu(hdr->header.ucode_array_offset_bytes));
687 
688 			WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UCODE_ADDR), 0);
689 
690 			for (j = 0; j < fw_size; j++) {
691 				if (amdgpu_emu_mode == 1 && j % 500 == 0)
692 					msleep(1);
693 				WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
694 			}
695 
696 			WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UCODE_ADDR), adev->sdma.instance[0].fw_version);
697 
698 			/* load Context Switch microcode */
699 			fw_size = le32_to_cpu(hdr->ctl_jt_offset + hdr->ctl_jt_size) / 4;
700 
701 			fw_data = (const __le32 *)
702 				(adev->sdma.instance[0].fw->data +
703 					le32_to_cpu(hdr->ctl_ucode_offset));
704 
705 			WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UCODE_ADDR), 0x8000);
706 
707 			for (j = 0; j < fw_size; j++) {
708 				if (amdgpu_emu_mode == 1 && j % 500 == 0)
709 					msleep(1);
710 				WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
711 			}
712 
713 			WREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_UCODE_ADDR), adev->sdma.instance[0].fw_version);
714 		}
715 	}
716 
717 	return 0;
718 }
719 
sdma_v6_0_soft_reset(void * handle)720 static int sdma_v6_0_soft_reset(void *handle)
721 {
722 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
723 	u32 tmp;
724 	int i;
725 
726 	sdma_v6_0_gfx_stop(adev);
727 
728 	for (i = 0; i < adev->sdma.num_instances; i++) {
729 		tmp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_FREEZE));
730 		tmp |= SDMA0_FREEZE__FREEZE_MASK;
731 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_FREEZE), tmp);
732 		tmp = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL));
733 		tmp |= SDMA0_F32_CNTL__HALT_MASK;
734 		tmp |= SDMA0_F32_CNTL__TH1_RESET_MASK;
735 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_F32_CNTL), tmp);
736 
737 		WREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_PREEMPT), 0);
738 
739 		udelay(100);
740 
741 		tmp = GRBM_SOFT_RESET__SOFT_RESET_SDMA0_MASK << i;
742 		WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, tmp);
743 		tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET);
744 
745 		udelay(100);
746 
747 		WREG32_SOC15(GC, 0, regGRBM_SOFT_RESET, 0);
748 		tmp = RREG32_SOC15(GC, 0, regGRBM_SOFT_RESET);
749 
750 		udelay(100);
751 	}
752 
753 	return sdma_v6_0_start(adev);
754 }
755 
sdma_v6_0_check_soft_reset(void * handle)756 static bool sdma_v6_0_check_soft_reset(void *handle)
757 {
758 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
759 	struct amdgpu_ring *ring;
760 	int i, r;
761 	long tmo = msecs_to_jiffies(1000);
762 
763 	for (i = 0; i < adev->sdma.num_instances; i++) {
764 		ring = &adev->sdma.instance[i].ring;
765 		r = amdgpu_ring_test_ib(ring, tmo);
766 		if (r)
767 			return true;
768 	}
769 
770 	return false;
771 }
772 
773 /**
774  * sdma_v6_0_start - setup and start the async dma engines
775  *
776  * @adev: amdgpu_device pointer
777  *
778  * Set up the DMA engines and enable them.
779  * Returns 0 for success, error for failure.
780  */
sdma_v6_0_start(struct amdgpu_device * adev)781 static int sdma_v6_0_start(struct amdgpu_device *adev)
782 {
783 	int r = 0;
784 
785 	if (amdgpu_sriov_vf(adev)) {
786 		sdma_v6_0_enable(adev, false);
787 
788 		/* set RB registers */
789 		r = sdma_v6_0_gfx_resume(adev);
790 		return r;
791 	}
792 
793 	if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
794 		r = sdma_v6_0_load_microcode(adev);
795 		if (r)
796 			return r;
797 
798 		/* The value of regSDMA_F32_CNTL is invalid the moment after loading fw */
799 		if (amdgpu_emu_mode == 1)
800 			msleep(1000);
801 	}
802 
803 	/* unhalt the MEs */
804 	sdma_v6_0_enable(adev, true);
805 	/* enable sdma ring preemption */
806 	sdma_v6_0_ctxempty_int_enable(adev, true);
807 
808 	/* start the gfx rings and rlc compute queues */
809 	r = sdma_v6_0_gfx_resume(adev);
810 	if (r)
811 		return r;
812 	r = sdma_v6_0_rlc_resume(adev);
813 
814 	return r;
815 }
816 
sdma_v6_0_mqd_init(struct amdgpu_device * adev,void * mqd,struct amdgpu_mqd_prop * prop)817 static int sdma_v6_0_mqd_init(struct amdgpu_device *adev, void *mqd,
818 			      struct amdgpu_mqd_prop *prop)
819 {
820 	struct v11_sdma_mqd *m = mqd;
821 	uint64_t wb_gpu_addr;
822 
823 	m->sdmax_rlcx_rb_cntl =
824 		order_base_2(prop->queue_size / 4) << SDMA0_QUEUE0_RB_CNTL__RB_SIZE__SHIFT |
825 		1 << SDMA0_QUEUE0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
826 		4 << SDMA0_QUEUE0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT |
827 		1 << SDMA0_QUEUE0_RB_CNTL__F32_WPTR_POLL_ENABLE__SHIFT;
828 
829 	m->sdmax_rlcx_rb_base = lower_32_bits(prop->hqd_base_gpu_addr >> 8);
830 	m->sdmax_rlcx_rb_base_hi = upper_32_bits(prop->hqd_base_gpu_addr >> 8);
831 
832 	wb_gpu_addr = prop->wptr_gpu_addr;
833 	m->sdmax_rlcx_rb_wptr_poll_addr_lo = lower_32_bits(wb_gpu_addr);
834 	m->sdmax_rlcx_rb_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr);
835 
836 	wb_gpu_addr = prop->rptr_gpu_addr;
837 	m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits(wb_gpu_addr);
838 	m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits(wb_gpu_addr);
839 
840 	m->sdmax_rlcx_ib_cntl = RREG32_SOC15_IP(GC, sdma_v6_0_get_reg_offset(adev, 0,
841 							regSDMA0_QUEUE0_IB_CNTL));
842 
843 	m->sdmax_rlcx_doorbell_offset =
844 		prop->doorbell_index << SDMA0_QUEUE0_DOORBELL_OFFSET__OFFSET__SHIFT;
845 
846 	m->sdmax_rlcx_doorbell = REG_SET_FIELD(0, SDMA0_QUEUE0_DOORBELL, ENABLE, 1);
847 
848 	m->sdmax_rlcx_skip_cntl = 0;
849 	m->sdmax_rlcx_context_status = 0;
850 	m->sdmax_rlcx_doorbell_log = 0;
851 
852 	m->sdmax_rlcx_rb_aql_cntl = regSDMA0_QUEUE0_RB_AQL_CNTL_DEFAULT;
853 	m->sdmax_rlcx_dummy_reg = regSDMA0_QUEUE0_DUMMY_REG_DEFAULT;
854 
855 	return 0;
856 }
857 
sdma_v6_0_set_mqd_funcs(struct amdgpu_device * adev)858 static void sdma_v6_0_set_mqd_funcs(struct amdgpu_device *adev)
859 {
860 	adev->mqds[AMDGPU_HW_IP_DMA].mqd_size = sizeof(struct v11_sdma_mqd);
861 	adev->mqds[AMDGPU_HW_IP_DMA].init_mqd = sdma_v6_0_mqd_init;
862 }
863 
864 /**
865  * sdma_v6_0_ring_test_ring - simple async dma engine test
866  *
867  * @ring: amdgpu_ring structure holding ring information
868  *
869  * Test the DMA engine by writing using it to write an
870  * value to memory.
871  * Returns 0 for success, error for failure.
872  */
sdma_v6_0_ring_test_ring(struct amdgpu_ring * ring)873 static int sdma_v6_0_ring_test_ring(struct amdgpu_ring *ring)
874 {
875 	struct amdgpu_device *adev = ring->adev;
876 	unsigned i;
877 	unsigned index;
878 	int r;
879 	u32 tmp;
880 	u64 gpu_addr;
881 	volatile uint32_t *cpu_ptr = NULL;
882 
883 	tmp = 0xCAFEDEAD;
884 
885 	if (ring->is_mes_queue) {
886 		uint32_t offset = 0;
887 		offset = amdgpu_mes_ctx_get_offs(ring,
888 					 AMDGPU_MES_CTX_PADDING_OFFS);
889 		gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
890 		cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
891 		*cpu_ptr = tmp;
892 	} else {
893 		r = amdgpu_device_wb_get(adev, &index);
894 		if (r) {
895 			dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
896 			return r;
897 		}
898 
899 		gpu_addr = adev->wb.gpu_addr + (index * 4);
900 		adev->wb.wb[index] = cpu_to_le32(tmp);
901 	}
902 
903 	r = amdgpu_ring_alloc(ring, 5);
904 	if (r) {
905 		DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
906 		amdgpu_device_wb_free(adev, index);
907 		return r;
908 	}
909 
910 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_WRITE) |
911 			  SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
912 	amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
913 	amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
914 	amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
915 	amdgpu_ring_write(ring, 0xDEADBEEF);
916 	amdgpu_ring_commit(ring);
917 
918 	for (i = 0; i < adev->usec_timeout; i++) {
919 		if (ring->is_mes_queue)
920 			tmp = le32_to_cpu(*cpu_ptr);
921 		else
922 			tmp = le32_to_cpu(adev->wb.wb[index]);
923 		if (tmp == 0xDEADBEEF)
924 			break;
925 		if (amdgpu_emu_mode == 1)
926 			msleep(1);
927 		else
928 			udelay(1);
929 	}
930 
931 	if (i >= adev->usec_timeout)
932 		r = -ETIMEDOUT;
933 
934 	if (!ring->is_mes_queue)
935 		amdgpu_device_wb_free(adev, index);
936 
937 	return r;
938 }
939 
940 /**
941  * sdma_v6_0_ring_test_ib - test an IB on the DMA engine
942  *
943  * @ring: amdgpu_ring structure holding ring information
944  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
945  *
946  * Test a simple IB in the DMA ring.
947  * Returns 0 on success, error on failure.
948  */
sdma_v6_0_ring_test_ib(struct amdgpu_ring * ring,long timeout)949 static int sdma_v6_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
950 {
951 	struct amdgpu_device *adev = ring->adev;
952 	struct amdgpu_ib ib;
953 	struct dma_fence *f = NULL;
954 	unsigned index;
955 	long r;
956 	u32 tmp = 0;
957 	u64 gpu_addr;
958 	volatile uint32_t *cpu_ptr = NULL;
959 
960 	tmp = 0xCAFEDEAD;
961 	memset(&ib, 0, sizeof(ib));
962 
963 	if (ring->is_mes_queue) {
964 		uint32_t offset = 0;
965 		offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS);
966 		ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
967 		ib.ptr = (void *)amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
968 
969 		offset = amdgpu_mes_ctx_get_offs(ring,
970 					 AMDGPU_MES_CTX_PADDING_OFFS);
971 		gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
972 		cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
973 		*cpu_ptr = tmp;
974 	} else {
975 		r = amdgpu_device_wb_get(adev, &index);
976 		if (r) {
977 			dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
978 			return r;
979 		}
980 
981 		gpu_addr = adev->wb.gpu_addr + (index * 4);
982 		adev->wb.wb[index] = cpu_to_le32(tmp);
983 
984 		r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib);
985 		if (r) {
986 			DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
987 			goto err0;
988 		}
989 	}
990 
991 	ib.ptr[0] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_WRITE) |
992 		SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
993 	ib.ptr[1] = lower_32_bits(gpu_addr);
994 	ib.ptr[2] = upper_32_bits(gpu_addr);
995 	ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
996 	ib.ptr[4] = 0xDEADBEEF;
997 	ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
998 	ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
999 	ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1000 	ib.length_dw = 8;
1001 
1002 	r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
1003 	if (r)
1004 		goto err1;
1005 
1006 	r = dma_fence_wait_timeout(f, false, timeout);
1007 	if (r == 0) {
1008 		DRM_ERROR("amdgpu: IB test timed out\n");
1009 		r = -ETIMEDOUT;
1010 		goto err1;
1011 	} else if (r < 0) {
1012 		DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1013 		goto err1;
1014 	}
1015 
1016 	if (ring->is_mes_queue)
1017 		tmp = le32_to_cpu(*cpu_ptr);
1018 	else
1019 		tmp = le32_to_cpu(adev->wb.wb[index]);
1020 
1021 	if (tmp == 0xDEADBEEF)
1022 		r = 0;
1023 	else
1024 		r = -EINVAL;
1025 
1026 err1:
1027 	amdgpu_ib_free(adev, &ib, NULL);
1028 	dma_fence_put(f);
1029 err0:
1030 	if (!ring->is_mes_queue)
1031 		amdgpu_device_wb_free(adev, index);
1032 	return r;
1033 }
1034 
1035 
1036 /**
1037  * sdma_v6_0_vm_copy_pte - update PTEs by copying them from the GART
1038  *
1039  * @ib: indirect buffer to fill with commands
1040  * @pe: addr of the page entry
1041  * @src: src addr to copy from
1042  * @count: number of page entries to update
1043  *
1044  * Update PTEs by copying them from the GART using sDMA.
1045  */
sdma_v6_0_vm_copy_pte(struct amdgpu_ib * ib,uint64_t pe,uint64_t src,unsigned count)1046 static void sdma_v6_0_vm_copy_pte(struct amdgpu_ib *ib,
1047 				  uint64_t pe, uint64_t src,
1048 				  unsigned count)
1049 {
1050 	unsigned bytes = count * 8;
1051 
1052 	ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COPY) |
1053 		SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1054 	ib->ptr[ib->length_dw++] = bytes - 1;
1055 	ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1056 	ib->ptr[ib->length_dw++] = lower_32_bits(src);
1057 	ib->ptr[ib->length_dw++] = upper_32_bits(src);
1058 	ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1059 	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1060 
1061 }
1062 
1063 /**
1064  * sdma_v6_0_vm_write_pte - update PTEs by writing them manually
1065  *
1066  * @ib: indirect buffer to fill with commands
1067  * @pe: addr of the page entry
1068  * @value: dst addr to write into pe
1069  * @count: number of page entries to update
1070  * @incr: increase next addr by incr bytes
1071  *
1072  * Update PTEs by writing them manually using sDMA.
1073  */
sdma_v6_0_vm_write_pte(struct amdgpu_ib * ib,uint64_t pe,uint64_t value,unsigned count,uint32_t incr)1074 static void sdma_v6_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1075 				   uint64_t value, unsigned count,
1076 				   uint32_t incr)
1077 {
1078 	unsigned ndw = count * 2;
1079 
1080 	ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_WRITE) |
1081 		SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1082 	ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1083 	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1084 	ib->ptr[ib->length_dw++] = ndw - 1;
1085 	for (; ndw > 0; ndw -= 2) {
1086 		ib->ptr[ib->length_dw++] = lower_32_bits(value);
1087 		ib->ptr[ib->length_dw++] = upper_32_bits(value);
1088 		value += incr;
1089 	}
1090 }
1091 
1092 /**
1093  * sdma_v6_0_vm_set_pte_pde - update the page tables using sDMA
1094  *
1095  * @ib: indirect buffer to fill with commands
1096  * @pe: addr of the page entry
1097  * @addr: dst addr to write into pe
1098  * @count: number of page entries to update
1099  * @incr: increase next addr by incr bytes
1100  * @flags: access flags
1101  *
1102  * Update the page tables using sDMA.
1103  */
sdma_v6_0_vm_set_pte_pde(struct amdgpu_ib * ib,uint64_t pe,uint64_t addr,unsigned count,uint32_t incr,uint64_t flags)1104 static void sdma_v6_0_vm_set_pte_pde(struct amdgpu_ib *ib,
1105 				     uint64_t pe,
1106 				     uint64_t addr, unsigned count,
1107 				     uint32_t incr, uint64_t flags)
1108 {
1109 	/* for physically contiguous pages (vram) */
1110 	ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_PTEPDE);
1111 	ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1112 	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1113 	ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1114 	ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1115 	ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1116 	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1117 	ib->ptr[ib->length_dw++] = incr; /* increment size */
1118 	ib->ptr[ib->length_dw++] = 0;
1119 	ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1120 }
1121 
1122 /**
1123  * sdma_v6_0_ring_pad_ib - pad the IB
1124  * @ib: indirect buffer to fill with padding
1125  * @ring: amdgpu ring pointer
1126  *
1127  * Pad the IB with NOPs to a boundary multiple of 8.
1128  */
sdma_v6_0_ring_pad_ib(struct amdgpu_ring * ring,struct amdgpu_ib * ib)1129 static void sdma_v6_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1130 {
1131 	struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1132 	u32 pad_count;
1133 	int i;
1134 
1135 	pad_count = (-ib->length_dw) & 0x7;
1136 	for (i = 0; i < pad_count; i++)
1137 		if (sdma && sdma->burst_nop && (i == 0))
1138 			ib->ptr[ib->length_dw++] =
1139 				SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_NOP) |
1140 				SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1141 		else
1142 			ib->ptr[ib->length_dw++] =
1143 				SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_NOP);
1144 }
1145 
1146 /**
1147  * sdma_v6_0_ring_emit_pipeline_sync - sync the pipeline
1148  *
1149  * @ring: amdgpu_ring pointer
1150  *
1151  * Make sure all previous operations are completed (CIK).
1152  */
sdma_v6_0_ring_emit_pipeline_sync(struct amdgpu_ring * ring)1153 static void sdma_v6_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1154 {
1155 	uint32_t seq = ring->fence_drv.sync_seq;
1156 	uint64_t addr = ring->fence_drv.gpu_addr;
1157 
1158 	/* wait for idle */
1159 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1160 			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1161 			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1162 			  SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1163 	amdgpu_ring_write(ring, addr & 0xfffffffc);
1164 	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1165 	amdgpu_ring_write(ring, seq); /* reference */
1166 	amdgpu_ring_write(ring, 0xffffffff); /* mask */
1167 	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1168 			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1169 }
1170 
1171 /**
1172  * sdma_v6_0_ring_emit_vm_flush - vm flush using sDMA
1173  *
1174  * @ring: amdgpu_ring pointer
1175  * @vmid: vmid number to use
1176  * @pd_addr: address
1177  *
1178  * Update the page table base and flush the VM TLB
1179  * using sDMA.
1180  */
sdma_v6_0_ring_emit_vm_flush(struct amdgpu_ring * ring,unsigned vmid,uint64_t pd_addr)1181 static void sdma_v6_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
1182 					 unsigned vmid, uint64_t pd_addr)
1183 {
1184 	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
1185 	uint32_t req = hub->vmhub_funcs->get_invalidate_req(vmid, 0);
1186 
1187 	/* Update the PD address for this VMID. */
1188 	amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 +
1189 			      (hub->ctx_addr_distance * vmid),
1190 			      lower_32_bits(pd_addr));
1191 	amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 +
1192 			      (hub->ctx_addr_distance * vmid),
1193 			      upper_32_bits(pd_addr));
1194 
1195 	/* Trigger invalidation. */
1196 	amdgpu_ring_write(ring,
1197 			  SDMA_PKT_VM_INVALIDATION_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1198 			  SDMA_PKT_VM_INVALIDATION_HEADER_SUB_OP(SDMA_SUBOP_VM_INVALIDATION) |
1199 			  SDMA_PKT_VM_INVALIDATION_HEADER_GFX_ENG_ID(ring->vm_inv_eng) |
1200 			  SDMA_PKT_VM_INVALIDATION_HEADER_MM_ENG_ID(0x1f));
1201 	amdgpu_ring_write(ring, req);
1202 	amdgpu_ring_write(ring, 0xFFFFFFFF);
1203 	amdgpu_ring_write(ring,
1204 			  SDMA_PKT_VM_INVALIDATION_ADDRESSRANGEHI_INVALIDATEACK(1 << vmid) |
1205 			  SDMA_PKT_VM_INVALIDATION_ADDRESSRANGEHI_ADDRESSRANGEHI(0x1F));
1206 }
1207 
sdma_v6_0_ring_emit_wreg(struct amdgpu_ring * ring,uint32_t reg,uint32_t val)1208 static void sdma_v6_0_ring_emit_wreg(struct amdgpu_ring *ring,
1209 				     uint32_t reg, uint32_t val)
1210 {
1211 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1212 			  SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1213 	amdgpu_ring_write(ring, reg);
1214 	amdgpu_ring_write(ring, val);
1215 }
1216 
sdma_v6_0_ring_emit_reg_wait(struct amdgpu_ring * ring,uint32_t reg,uint32_t val,uint32_t mask)1217 static void sdma_v6_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1218 					 uint32_t val, uint32_t mask)
1219 {
1220 	amdgpu_ring_write(ring, SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1221 			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1222 			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1223 	amdgpu_ring_write(ring, reg << 2);
1224 	amdgpu_ring_write(ring, 0);
1225 	amdgpu_ring_write(ring, val); /* reference */
1226 	amdgpu_ring_write(ring, mask); /* mask */
1227 	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1228 			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1229 }
1230 
sdma_v6_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring * ring,uint32_t reg0,uint32_t reg1,uint32_t ref,uint32_t mask)1231 static void sdma_v6_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1232 						   uint32_t reg0, uint32_t reg1,
1233 						   uint32_t ref, uint32_t mask)
1234 {
1235 	amdgpu_ring_emit_wreg(ring, reg0, ref);
1236 	/* wait for a cycle to reset vm_inv_eng*_ack */
1237 	amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1238 	amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1239 }
1240 
1241 static struct amdgpu_sdma_ras sdma_v6_0_3_ras = {
1242 	.ras_block = {
1243 		.ras_late_init = amdgpu_ras_block_late_init,
1244 	},
1245 };
1246 
sdma_v6_0_set_ras_funcs(struct amdgpu_device * adev)1247 static void sdma_v6_0_set_ras_funcs(struct amdgpu_device *adev)
1248 {
1249 	switch (adev->ip_versions[SDMA0_HWIP][0]) {
1250 	case IP_VERSION(6, 0, 3):
1251 		adev->sdma.ras = &sdma_v6_0_3_ras;
1252 		break;
1253 	default:
1254 		break;
1255 	}
1256 
1257 }
1258 
sdma_v6_0_early_init(void * handle)1259 static int sdma_v6_0_early_init(void *handle)
1260 {
1261 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1262 
1263 	sdma_v6_0_set_ring_funcs(adev);
1264 	sdma_v6_0_set_buffer_funcs(adev);
1265 	sdma_v6_0_set_vm_pte_funcs(adev);
1266 	sdma_v6_0_set_irq_funcs(adev);
1267 	sdma_v6_0_set_mqd_funcs(adev);
1268 	sdma_v6_0_set_ras_funcs(adev);
1269 
1270 	return 0;
1271 }
1272 
sdma_v6_0_sw_init(void * handle)1273 static int sdma_v6_0_sw_init(void *handle)
1274 {
1275 	struct amdgpu_ring *ring;
1276 	int r, i;
1277 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1278 
1279 	/* SDMA trap event */
1280 	r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_GFX,
1281 			      GFX_11_0_0__SRCID__SDMA_TRAP,
1282 			      &adev->sdma.trap_irq);
1283 	if (r)
1284 		return r;
1285 
1286 	r = amdgpu_sdma_init_microcode(adev, 0, true);
1287 	if (r) {
1288 		DRM_ERROR("Failed to load sdma firmware!\n");
1289 		return r;
1290 	}
1291 
1292 	for (i = 0; i < adev->sdma.num_instances; i++) {
1293 		ring = &adev->sdma.instance[i].ring;
1294 		ring->ring_obj = NULL;
1295 		ring->use_doorbell = true;
1296 		ring->me = i;
1297 
1298 		DRM_DEBUG("SDMA %d use_doorbell being set to: [%s]\n", i,
1299 				ring->use_doorbell?"true":"false");
1300 
1301 		ring->doorbell_index =
1302 			(adev->doorbell_index.sdma_engine[i] << 1); // get DWORD offset
1303 
1304 		ring->vm_hub = AMDGPU_GFXHUB(0);
1305 		sprintf(ring->name, "sdma%d", i);
1306 		r = amdgpu_ring_init(adev, ring, 1024,
1307 				     &adev->sdma.trap_irq,
1308 				     AMDGPU_SDMA_IRQ_INSTANCE0 + i,
1309 				     AMDGPU_RING_PRIO_DEFAULT, NULL);
1310 		if (r)
1311 			return r;
1312 	}
1313 
1314 	if (amdgpu_sdma_ras_sw_init(adev)) {
1315 		dev_err(adev->dev, "Failed to initialize sdma ras block!\n");
1316 		return -EINVAL;
1317 	}
1318 
1319 	return r;
1320 }
1321 
sdma_v6_0_sw_fini(void * handle)1322 static int sdma_v6_0_sw_fini(void *handle)
1323 {
1324 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1325 	int i;
1326 
1327 	for (i = 0; i < adev->sdma.num_instances; i++)
1328 		amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1329 
1330 	amdgpu_sdma_destroy_inst_ctx(adev, true);
1331 
1332 	return 0;
1333 }
1334 
sdma_v6_0_hw_init(void * handle)1335 static int sdma_v6_0_hw_init(void *handle)
1336 {
1337 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1338 
1339 	return sdma_v6_0_start(adev);
1340 }
1341 
sdma_v6_0_hw_fini(void * handle)1342 static int sdma_v6_0_hw_fini(void *handle)
1343 {
1344 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1345 
1346 	if (amdgpu_sriov_vf(adev)) {
1347 		/* disable the scheduler for SDMA */
1348 		amdgpu_sdma_unset_buffer_funcs_helper(adev);
1349 		return 0;
1350 	}
1351 
1352 	sdma_v6_0_ctxempty_int_enable(adev, false);
1353 	sdma_v6_0_enable(adev, false);
1354 
1355 	return 0;
1356 }
1357 
sdma_v6_0_suspend(void * handle)1358 static int sdma_v6_0_suspend(void *handle)
1359 {
1360 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1361 
1362 	return sdma_v6_0_hw_fini(adev);
1363 }
1364 
sdma_v6_0_resume(void * handle)1365 static int sdma_v6_0_resume(void *handle)
1366 {
1367 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1368 
1369 	return sdma_v6_0_hw_init(adev);
1370 }
1371 
sdma_v6_0_is_idle(void * handle)1372 static bool sdma_v6_0_is_idle(void *handle)
1373 {
1374 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1375 	u32 i;
1376 
1377 	for (i = 0; i < adev->sdma.num_instances; i++) {
1378 		u32 tmp = RREG32(sdma_v6_0_get_reg_offset(adev, i, regSDMA0_STATUS_REG));
1379 
1380 		if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1381 			return false;
1382 	}
1383 
1384 	return true;
1385 }
1386 
sdma_v6_0_wait_for_idle(void * handle)1387 static int sdma_v6_0_wait_for_idle(void *handle)
1388 {
1389 	unsigned i;
1390 	u32 sdma0, sdma1;
1391 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1392 
1393 	for (i = 0; i < adev->usec_timeout; i++) {
1394 		sdma0 = RREG32(sdma_v6_0_get_reg_offset(adev, 0, regSDMA0_STATUS_REG));
1395 		sdma1 = RREG32(sdma_v6_0_get_reg_offset(adev, 1, regSDMA0_STATUS_REG));
1396 
1397 		if (sdma0 & sdma1 & SDMA0_STATUS_REG__IDLE_MASK)
1398 			return 0;
1399 		udelay(1);
1400 	}
1401 	return -ETIMEDOUT;
1402 }
1403 
sdma_v6_0_ring_preempt_ib(struct amdgpu_ring * ring)1404 static int sdma_v6_0_ring_preempt_ib(struct amdgpu_ring *ring)
1405 {
1406 	int i, r = 0;
1407 	struct amdgpu_device *adev = ring->adev;
1408 	u32 index = 0;
1409 	u64 sdma_gfx_preempt;
1410 
1411 	amdgpu_sdma_get_index_from_ring(ring, &index);
1412 	sdma_gfx_preempt =
1413 		sdma_v6_0_get_reg_offset(adev, index, regSDMA0_QUEUE0_PREEMPT);
1414 
1415 	/* assert preemption condition */
1416 	amdgpu_ring_set_preempt_cond_exec(ring, false);
1417 
1418 	/* emit the trailing fence */
1419 	ring->trail_seq += 1;
1420 	amdgpu_ring_alloc(ring, 10);
1421 	sdma_v6_0_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1422 				  ring->trail_seq, 0);
1423 	amdgpu_ring_commit(ring);
1424 
1425 	/* assert IB preemption */
1426 	WREG32(sdma_gfx_preempt, 1);
1427 
1428 	/* poll the trailing fence */
1429 	for (i = 0; i < adev->usec_timeout; i++) {
1430 		if (ring->trail_seq ==
1431 		    le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1432 			break;
1433 		udelay(1);
1434 	}
1435 
1436 	if (i >= adev->usec_timeout) {
1437 		r = -EINVAL;
1438 		DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1439 	}
1440 
1441 	/* deassert IB preemption */
1442 	WREG32(sdma_gfx_preempt, 0);
1443 
1444 	/* deassert the preemption condition */
1445 	amdgpu_ring_set_preempt_cond_exec(ring, true);
1446 	return r;
1447 }
1448 
sdma_v6_0_set_trap_irq_state(struct amdgpu_device * adev,struct amdgpu_irq_src * source,unsigned type,enum amdgpu_interrupt_state state)1449 static int sdma_v6_0_set_trap_irq_state(struct amdgpu_device *adev,
1450 					struct amdgpu_irq_src *source,
1451 					unsigned type,
1452 					enum amdgpu_interrupt_state state)
1453 {
1454 	u32 sdma_cntl;
1455 
1456 	u32 reg_offset = sdma_v6_0_get_reg_offset(adev, type, regSDMA0_CNTL);
1457 
1458 	if (!amdgpu_sriov_vf(adev)) {
1459 		sdma_cntl = RREG32(reg_offset);
1460 		sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1461 				state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1462 		WREG32(reg_offset, sdma_cntl);
1463 	}
1464 
1465 	return 0;
1466 }
1467 
sdma_v6_0_process_trap_irq(struct amdgpu_device * adev,struct amdgpu_irq_src * source,struct amdgpu_iv_entry * entry)1468 static int sdma_v6_0_process_trap_irq(struct amdgpu_device *adev,
1469 				      struct amdgpu_irq_src *source,
1470 				      struct amdgpu_iv_entry *entry)
1471 {
1472 	int instances, queue;
1473 	uint32_t mes_queue_id = entry->src_data[0];
1474 
1475 	DRM_DEBUG("IH: SDMA trap\n");
1476 
1477 	if (adev->enable_mes && (mes_queue_id & AMDGPU_FENCE_MES_QUEUE_FLAG)) {
1478 		struct amdgpu_mes_queue *queue;
1479 
1480 		mes_queue_id &= AMDGPU_FENCE_MES_QUEUE_ID_MASK;
1481 
1482 		spin_lock(&adev->mes.queue_id_lock);
1483 		queue = idr_find(&adev->mes.queue_id_idr, mes_queue_id);
1484 		if (queue) {
1485 			DRM_DEBUG("process smda queue id = %d\n", mes_queue_id);
1486 			amdgpu_fence_process(queue->ring);
1487 		}
1488 		spin_unlock(&adev->mes.queue_id_lock);
1489 		return 0;
1490 	}
1491 
1492 	queue = entry->ring_id & 0xf;
1493 	instances = (entry->ring_id & 0xf0) >> 4;
1494 	if (instances > 1) {
1495 		DRM_ERROR("IH: wrong ring_ID detected, as wrong sdma instance\n");
1496 		return -EINVAL;
1497 	}
1498 
1499 	switch (entry->client_id) {
1500 	case SOC21_IH_CLIENTID_GFX:
1501 		switch (queue) {
1502 		case 0:
1503 			amdgpu_fence_process(&adev->sdma.instance[instances].ring);
1504 			break;
1505 		default:
1506 			break;
1507 		}
1508 		break;
1509 	}
1510 	return 0;
1511 }
1512 
sdma_v6_0_process_illegal_inst_irq(struct amdgpu_device * adev,struct amdgpu_irq_src * source,struct amdgpu_iv_entry * entry)1513 static int sdma_v6_0_process_illegal_inst_irq(struct amdgpu_device *adev,
1514 					      struct amdgpu_irq_src *source,
1515 					      struct amdgpu_iv_entry *entry)
1516 {
1517 	return 0;
1518 }
1519 
sdma_v6_0_set_clockgating_state(void * handle,enum amd_clockgating_state state)1520 static int sdma_v6_0_set_clockgating_state(void *handle,
1521 					   enum amd_clockgating_state state)
1522 {
1523 	return 0;
1524 }
1525 
sdma_v6_0_set_powergating_state(void * handle,enum amd_powergating_state state)1526 static int sdma_v6_0_set_powergating_state(void *handle,
1527 					  enum amd_powergating_state state)
1528 {
1529 	return 0;
1530 }
1531 
sdma_v6_0_get_clockgating_state(void * handle,u64 * flags)1532 static void sdma_v6_0_get_clockgating_state(void *handle, u64 *flags)
1533 {
1534 }
1535 
1536 const struct amd_ip_funcs sdma_v6_0_ip_funcs = {
1537 	.name = "sdma_v6_0",
1538 	.early_init = sdma_v6_0_early_init,
1539 	.late_init = NULL,
1540 	.sw_init = sdma_v6_0_sw_init,
1541 	.sw_fini = sdma_v6_0_sw_fini,
1542 	.hw_init = sdma_v6_0_hw_init,
1543 	.hw_fini = sdma_v6_0_hw_fini,
1544 	.suspend = sdma_v6_0_suspend,
1545 	.resume = sdma_v6_0_resume,
1546 	.is_idle = sdma_v6_0_is_idle,
1547 	.wait_for_idle = sdma_v6_0_wait_for_idle,
1548 	.soft_reset = sdma_v6_0_soft_reset,
1549 	.check_soft_reset = sdma_v6_0_check_soft_reset,
1550 	.set_clockgating_state = sdma_v6_0_set_clockgating_state,
1551 	.set_powergating_state = sdma_v6_0_set_powergating_state,
1552 	.get_clockgating_state = sdma_v6_0_get_clockgating_state,
1553 };
1554 
1555 static const struct amdgpu_ring_funcs sdma_v6_0_ring_funcs = {
1556 	.type = AMDGPU_RING_TYPE_SDMA,
1557 	.align_mask = 0xf,
1558 	.nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1559 	.support_64bit_ptrs = true,
1560 	.secure_submission_supported = true,
1561 	.get_rptr = sdma_v6_0_ring_get_rptr,
1562 	.get_wptr = sdma_v6_0_ring_get_wptr,
1563 	.set_wptr = sdma_v6_0_ring_set_wptr,
1564 	.emit_frame_size =
1565 		5 + /* sdma_v6_0_ring_init_cond_exec */
1566 		6 + /* sdma_v6_0_ring_emit_hdp_flush */
1567 		6 + /* sdma_v6_0_ring_emit_pipeline_sync */
1568 		/* sdma_v6_0_ring_emit_vm_flush */
1569 		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1570 		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1571 		10 + 10 + 10, /* sdma_v6_0_ring_emit_fence x3 for user fence, vm fence */
1572 	.emit_ib_size = 5 + 7 + 6, /* sdma_v6_0_ring_emit_ib */
1573 	.emit_ib = sdma_v6_0_ring_emit_ib,
1574 	.emit_mem_sync = sdma_v6_0_ring_emit_mem_sync,
1575 	.emit_fence = sdma_v6_0_ring_emit_fence,
1576 	.emit_pipeline_sync = sdma_v6_0_ring_emit_pipeline_sync,
1577 	.emit_vm_flush = sdma_v6_0_ring_emit_vm_flush,
1578 	.emit_hdp_flush = sdma_v6_0_ring_emit_hdp_flush,
1579 	.test_ring = sdma_v6_0_ring_test_ring,
1580 	.test_ib = sdma_v6_0_ring_test_ib,
1581 	.insert_nop = sdma_v6_0_ring_insert_nop,
1582 	.pad_ib = sdma_v6_0_ring_pad_ib,
1583 	.emit_wreg = sdma_v6_0_ring_emit_wreg,
1584 	.emit_reg_wait = sdma_v6_0_ring_emit_reg_wait,
1585 	.emit_reg_write_reg_wait = sdma_v6_0_ring_emit_reg_write_reg_wait,
1586 	.init_cond_exec = sdma_v6_0_ring_init_cond_exec,
1587 	.patch_cond_exec = sdma_v6_0_ring_patch_cond_exec,
1588 	.preempt_ib = sdma_v6_0_ring_preempt_ib,
1589 };
1590 
sdma_v6_0_set_ring_funcs(struct amdgpu_device * adev)1591 static void sdma_v6_0_set_ring_funcs(struct amdgpu_device *adev)
1592 {
1593 	int i;
1594 
1595 	for (i = 0; i < adev->sdma.num_instances; i++) {
1596 		adev->sdma.instance[i].ring.funcs = &sdma_v6_0_ring_funcs;
1597 		adev->sdma.instance[i].ring.me = i;
1598 	}
1599 }
1600 
1601 static const struct amdgpu_irq_src_funcs sdma_v6_0_trap_irq_funcs = {
1602 	.set = sdma_v6_0_set_trap_irq_state,
1603 	.process = sdma_v6_0_process_trap_irq,
1604 };
1605 
1606 static const struct amdgpu_irq_src_funcs sdma_v6_0_illegal_inst_irq_funcs = {
1607 	.process = sdma_v6_0_process_illegal_inst_irq,
1608 };
1609 
sdma_v6_0_set_irq_funcs(struct amdgpu_device * adev)1610 static void sdma_v6_0_set_irq_funcs(struct amdgpu_device *adev)
1611 {
1612 	adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1613 					adev->sdma.num_instances;
1614 	adev->sdma.trap_irq.funcs = &sdma_v6_0_trap_irq_funcs;
1615 	adev->sdma.illegal_inst_irq.funcs = &sdma_v6_0_illegal_inst_irq_funcs;
1616 }
1617 
1618 /**
1619  * sdma_v6_0_emit_copy_buffer - copy buffer using the sDMA engine
1620  *
1621  * @ib: indirect buffer to fill with commands
1622  * @src_offset: src GPU address
1623  * @dst_offset: dst GPU address
1624  * @byte_count: number of bytes to xfer
1625  * @tmz: if a secure copy should be used
1626  *
1627  * Copy GPU buffers using the DMA engine.
1628  * Used by the amdgpu ttm implementation to move pages if
1629  * registered as the asic copy callback.
1630  */
sdma_v6_0_emit_copy_buffer(struct amdgpu_ib * ib,uint64_t src_offset,uint64_t dst_offset,uint32_t byte_count,bool tmz)1631 static void sdma_v6_0_emit_copy_buffer(struct amdgpu_ib *ib,
1632 				       uint64_t src_offset,
1633 				       uint64_t dst_offset,
1634 				       uint32_t byte_count,
1635 				       bool tmz)
1636 {
1637 	ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_COPY) |
1638 		SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
1639 		SDMA_PKT_COPY_LINEAR_HEADER_TMZ(tmz ? 1 : 0);
1640 	ib->ptr[ib->length_dw++] = byte_count - 1;
1641 	ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1642 	ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1643 	ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1644 	ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1645 	ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1646 }
1647 
1648 /**
1649  * sdma_v6_0_emit_fill_buffer - fill buffer using the sDMA engine
1650  *
1651  * @ib: indirect buffer to fill
1652  * @src_data: value to write to buffer
1653  * @dst_offset: dst GPU address
1654  * @byte_count: number of bytes to xfer
1655  *
1656  * Fill GPU buffers using the DMA engine.
1657  */
sdma_v6_0_emit_fill_buffer(struct amdgpu_ib * ib,uint32_t src_data,uint64_t dst_offset,uint32_t byte_count)1658 static void sdma_v6_0_emit_fill_buffer(struct amdgpu_ib *ib,
1659 				       uint32_t src_data,
1660 				       uint64_t dst_offset,
1661 				       uint32_t byte_count)
1662 {
1663 	ib->ptr[ib->length_dw++] = SDMA_PKT_COPY_LINEAR_HEADER_OP(SDMA_OP_CONST_FILL);
1664 	ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1665 	ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1666 	ib->ptr[ib->length_dw++] = src_data;
1667 	ib->ptr[ib->length_dw++] = byte_count - 1;
1668 }
1669 
1670 static const struct amdgpu_buffer_funcs sdma_v6_0_buffer_funcs = {
1671 	.copy_max_bytes = 0x400000,
1672 	.copy_num_dw = 7,
1673 	.emit_copy_buffer = sdma_v6_0_emit_copy_buffer,
1674 
1675 	.fill_max_bytes = 0x400000,
1676 	.fill_num_dw = 5,
1677 	.emit_fill_buffer = sdma_v6_0_emit_fill_buffer,
1678 };
1679 
sdma_v6_0_set_buffer_funcs(struct amdgpu_device * adev)1680 static void sdma_v6_0_set_buffer_funcs(struct amdgpu_device *adev)
1681 {
1682 	adev->mman.buffer_funcs = &sdma_v6_0_buffer_funcs;
1683 	adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1684 }
1685 
1686 static const struct amdgpu_vm_pte_funcs sdma_v6_0_vm_pte_funcs = {
1687 	.copy_pte_num_dw = 7,
1688 	.copy_pte = sdma_v6_0_vm_copy_pte,
1689 	.write_pte = sdma_v6_0_vm_write_pte,
1690 	.set_pte_pde = sdma_v6_0_vm_set_pte_pde,
1691 };
1692 
sdma_v6_0_set_vm_pte_funcs(struct amdgpu_device * adev)1693 static void sdma_v6_0_set_vm_pte_funcs(struct amdgpu_device *adev)
1694 {
1695 	unsigned i;
1696 
1697 	adev->vm_manager.vm_pte_funcs = &sdma_v6_0_vm_pte_funcs;
1698 	for (i = 0; i < adev->sdma.num_instances; i++) {
1699 		adev->vm_manager.vm_pte_scheds[i] =
1700 			&adev->sdma.instance[i].ring.sched;
1701 	}
1702 	adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1703 }
1704 
1705 const struct amdgpu_ip_block_version sdma_v6_0_ip_block = {
1706 	.type = AMD_IP_BLOCK_TYPE_SDMA,
1707 	.major = 6,
1708 	.minor = 0,
1709 	.rev = 0,
1710 	.funcs = &sdma_v6_0_ip_funcs,
1711 };
1712