1/*
   2 * Copyright 2019 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_10_3_0_offset.h"
  34#include "gc/gc_10_3_0_sh_mask.h"
  35#include "ivsrcid/sdma0/irqsrcs_sdma0_5_0.h"
  36#include "ivsrcid/sdma1/irqsrcs_sdma1_5_0.h"
  37#include "ivsrcid/sdma2/irqsrcs_sdma2_5_0.h"
  38#include "ivsrcid/sdma3/irqsrcs_sdma3_5_0.h"
  39
  40#include "soc15_common.h"
  41#include "soc15.h"
  42#include "navi10_sdma_pkt_open.h"
  43#include "nbio_v2_3.h"
  44#include "sdma_common.h"
  45#include "sdma_v5_2.h"
  46
  47MODULE_FIRMWARE("amdgpu/sienna_cichlid_sdma.bin");
  48MODULE_FIRMWARE("amdgpu/navy_flounder_sdma.bin");
  49MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_sdma.bin");
  50MODULE_FIRMWARE("amdgpu/beige_goby_sdma.bin");
  51
  52MODULE_FIRMWARE("amdgpu/vangogh_sdma.bin");
  53MODULE_FIRMWARE("amdgpu/yellow_carp_sdma.bin");
  54MODULE_FIRMWARE("amdgpu/sdma_5_2_6.bin");
  55MODULE_FIRMWARE("amdgpu/sdma_5_2_7.bin");
  56
  57#define SDMA1_REG_OFFSET 0x600
  58#define SDMA3_REG_OFFSET 0x400
  59#define SDMA0_HYP_DEC_REG_START 0x5880
  60#define SDMA0_HYP_DEC_REG_END 0x5893
  61#define SDMA1_HYP_DEC_REG_OFFSET 0x20
  62
  63static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev);
  64static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev);
  65static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev);
  66static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev);
  67
  68static u32 sdma_v5_2_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
  69{
  70	u32 base;
  71
  72	if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
  73	    internal_offset <= SDMA0_HYP_DEC_REG_END) {
  74		base = adev->reg_offset[GC_HWIP][0][1];
  75		if (instance != 0)
  76			internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance;
  77	} else {
  78		if (instance < 2) {
  79			base = adev->reg_offset[GC_HWIP][0][0];
  80			if (instance == 1)
  81				internal_offset += SDMA1_REG_OFFSET;
  82		} else {
  83			base = adev->reg_offset[GC_HWIP][0][2];
  84			if (instance == 3)
  85				internal_offset += SDMA3_REG_OFFSET;
  86		}
  87	}
  88
  89	return base + internal_offset;
  90}
  91
  92static unsigned sdma_v5_2_ring_init_cond_exec(struct amdgpu_ring *ring,
  93					      uint64_t addr)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  94{
  95	unsigned ret;
  96
  97	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE));
  98	amdgpu_ring_write(ring, lower_32_bits(addr));
  99	amdgpu_ring_write(ring, upper_32_bits(addr));
 100	amdgpu_ring_write(ring, 1);
 101	/* this is the offset we need patch later */
 102	ret = ring->wptr & ring->buf_mask;
 103	/* insert dummy here and patch it later */
 104	amdgpu_ring_write(ring, 0);
 105
 106	return ret;
 107}
 108
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 109/**
 110 * sdma_v5_2_ring_get_rptr - get the current read pointer
 111 *
 112 * @ring: amdgpu ring pointer
 113 *
 114 * Get the current rptr from the hardware (NAVI10+).
 115 */
 116static uint64_t sdma_v5_2_ring_get_rptr(struct amdgpu_ring *ring)
 117{
 118	u64 *rptr;
 119
 120	/* XXX check if swapping is necessary on BE */
 121	rptr = (u64 *)ring->rptr_cpu_addr;
 122
 123	DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 124	return ((*rptr) >> 2);
 125}
 126
 127/**
 128 * sdma_v5_2_ring_get_wptr - get the current write pointer
 129 *
 130 * @ring: amdgpu ring pointer
 131 *
 132 * Get the current wptr from the hardware (NAVI10+).
 133 */
 134static uint64_t sdma_v5_2_ring_get_wptr(struct amdgpu_ring *ring)
 135{
 136	struct amdgpu_device *adev = ring->adev;
 137	u64 wptr;
 138
 139	if (ring->use_doorbell) {
 140		/* XXX check if swapping is necessary on BE */
 141		wptr = READ_ONCE(*((u64 *)ring->wptr_cpu_addr));
 142		DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
 143	} else {
 144		wptr = RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
 145		wptr = wptr << 32;
 146		wptr |= RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
 147		DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr);
 148	}
 149
 150	return wptr >> 2;
 151}
 152
 153/**
 154 * sdma_v5_2_ring_set_wptr - commit the write pointer
 155 *
 156 * @ring: amdgpu ring pointer
 157 *
 158 * Write the wptr back to the hardware (NAVI10+).
 159 */
 160static void sdma_v5_2_ring_set_wptr(struct amdgpu_ring *ring)
 161{
 162	struct amdgpu_device *adev = ring->adev;
 163
 164	DRM_DEBUG("Setting write pointer\n");
 165	if (ring->use_doorbell) {
 166		DRM_DEBUG("Using doorbell -- "
 167				"wptr_offs == 0x%08x "
 168				"lower_32_bits(ring->wptr << 2) == 0x%08x "
 169				"upper_32_bits(ring->wptr << 2) == 0x%08x\n",
 170				ring->wptr_offs,
 171				lower_32_bits(ring->wptr << 2),
 172				upper_32_bits(ring->wptr << 2));
 173		/* XXX check if swapping is necessary on BE */
 174		atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
 175			     ring->wptr << 2);
 176		DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 177				ring->doorbell_index, ring->wptr << 2);
 178		WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 179	} else {
 180		DRM_DEBUG("Not using doorbell -- "
 181				"mmSDMA%i_GFX_RB_WPTR == 0x%08x "
 182				"mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 183				ring->me,
 184				lower_32_bits(ring->wptr << 2),
 185				ring->me,
 186				upper_32_bits(ring->wptr << 2));
 187		WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
 188			lower_32_bits(ring->wptr << 2));
 189		WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
 190			upper_32_bits(ring->wptr << 2));
 191	}
 192}
 193
 194static void sdma_v5_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 195{
 196	struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 197	int i;
 198
 199	for (i = 0; i < count; i++)
 200		if (sdma && sdma->burst_nop && (i == 0))
 201			amdgpu_ring_write(ring, ring->funcs->nop |
 202				SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 203		else
 204			amdgpu_ring_write(ring, ring->funcs->nop);
 205}
 206
 207/**
 208 * sdma_v5_2_ring_emit_ib - Schedule an IB on the DMA engine
 209 *
 210 * @ring: amdgpu ring pointer
 211 * @job: job to retrieve vmid from
 212 * @ib: IB object to schedule
 213 * @flags: unused
 214 *
 215 * Schedule an IB in the DMA ring.
 216 */
 217static void sdma_v5_2_ring_emit_ib(struct amdgpu_ring *ring,
 218				   struct amdgpu_job *job,
 219				   struct amdgpu_ib *ib,
 220				   uint32_t flags)
 221{
 222	unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 223	uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
 224
 225	/* An IB packet must end on a 8 DW boundary--the next dword
 226	 * must be on a 8-dword boundary. Our IB packet below is 6
 227	 * dwords long, thus add x number of NOPs, such that, in
 228	 * modular arithmetic,
 229	 * wptr + 6 + x = 8k, k >= 0, which in C is,
 230	 * (wptr + 6 + x) % 8 = 0.
 231	 * The expression below, is a solution of x.
 232	 */
 233	sdma_v5_2_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 234
 235	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 236			  SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 237	/* base must be 32 byte aligned */
 238	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 239	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 240	amdgpu_ring_write(ring, ib->length_dw);
 241	amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
 242	amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 243}
 244
 245/**
 246 * sdma_v5_2_ring_emit_mem_sync - flush the IB by graphics cache rinse
 247 *
 248 * @ring: amdgpu ring pointer
 249 *
 250 * flush the IB by graphics cache rinse.
 251 */
 252static void sdma_v5_2_ring_emit_mem_sync(struct amdgpu_ring *ring)
 253{
 254	uint32_t gcr_cntl = SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB |
 255			    SDMA_GCR_GLM_INV | SDMA_GCR_GL1_INV |
 256			    SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
 257			    SDMA_GCR_GLI_INV(1);
 258
 259	/* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
 260	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_GCR_REQ));
 261	amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
 262	amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
 263			SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
 264	amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
 265			SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
 266	amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
 267			SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
 268}
 269
 270/**
 271 * sdma_v5_2_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 272 *
 273 * @ring: amdgpu ring pointer
 274 *
 275 * Emit an hdp flush packet on the requested DMA ring.
 276 */
 277static void sdma_v5_2_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 278{
 279	struct amdgpu_device *adev = ring->adev;
 280	u32 ref_and_mask = 0;
 281	const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
 282
 283	if (ring->me > 1) {
 284		amdgpu_asic_flush_hdp(adev, ring);
 285	} else {
 286		ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
 287
 288		amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 289				  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 290				  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 291		amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
 292		amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
 293		amdgpu_ring_write(ring, ref_and_mask); /* reference */
 294		amdgpu_ring_write(ring, ref_and_mask); /* mask */
 295		amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 296				  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 297	}
 298}
 299
 300/**
 301 * sdma_v5_2_ring_emit_fence - emit a fence on the DMA ring
 302 *
 303 * @ring: amdgpu ring pointer
 304 * @addr: address
 305 * @seq: sequence number
 306 * @flags: fence related flags
 307 *
 308 * Add a DMA fence packet to the ring to write
 309 * the fence seq number and DMA trap packet to generate
 310 * an interrupt if needed.
 311 */
 312static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 313				      unsigned flags)
 314{
 315	bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 316	/* write the fence */
 317	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 318			  SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
 319	/* zero in first two bits */
 320	BUG_ON(addr & 0x3);
 321	amdgpu_ring_write(ring, lower_32_bits(addr));
 322	amdgpu_ring_write(ring, upper_32_bits(addr));
 323	amdgpu_ring_write(ring, lower_32_bits(seq));
 324
 325	/* optionally write high bits as well */
 326	if (write64bit) {
 327		addr += 4;
 328		amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 329				  SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
 330		/* zero in first two bits */
 331		BUG_ON(addr & 0x3);
 332		amdgpu_ring_write(ring, lower_32_bits(addr));
 333		amdgpu_ring_write(ring, upper_32_bits(addr));
 334		amdgpu_ring_write(ring, upper_32_bits(seq));
 335	}
 336
 337	if ((flags & AMDGPU_FENCE_FLAG_INT)) {
 338		uint32_t ctx = ring->is_mes_queue ?
 339			(ring->hw_queue_id | AMDGPU_FENCE_MES_QUEUE_FLAG) : 0;
 340		/* generate an interrupt */
 341		amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 342		amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(ctx));
 343	}
 344}
 345
 346
 347/**
 348 * sdma_v5_2_gfx_stop - stop the gfx async dma engines
 349 *
 350 * @adev: amdgpu_device pointer
 351 *
 352 * Stop the gfx async dma ring buffers.
 353 */
 354static void sdma_v5_2_gfx_stop(struct amdgpu_device *adev)
 355{
 356	u32 rb_cntl, ib_cntl;
 357	int i;
 358
 
 
 359	for (i = 0; i < adev->sdma.num_instances; i++) {
 360		rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 361		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 362		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 363		ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 364		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 365		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 366	}
 367}
 368
 369/**
 370 * sdma_v5_2_rlc_stop - stop the compute async dma engines
 371 *
 372 * @adev: amdgpu_device pointer
 373 *
 374 * Stop the compute async dma queues.
 375 */
 376static void sdma_v5_2_rlc_stop(struct amdgpu_device *adev)
 377{
 378	/* XXX todo */
 379}
 380
 381/**
 382 * sdma_v5_2_ctx_switch_enable - stop the async dma engines context switch
 383 *
 384 * @adev: amdgpu_device pointer
 385 * @enable: enable/disable the DMA MEs context switch.
 386 *
 387 * Halt or unhalt the async dma engines context switch.
 388 */
 389static void sdma_v5_2_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 390{
 391	u32 f32_cntl, phase_quantum = 0;
 392	int i;
 393
 394	if (amdgpu_sdma_phase_quantum) {
 395		unsigned value = amdgpu_sdma_phase_quantum;
 396		unsigned unit = 0;
 397
 398		while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 399				SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 400			value = (value + 1) >> 1;
 401			unit++;
 402		}
 403		if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 404			    SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 405			value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 406				 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 407			unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 408				SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 409			WARN_ONCE(1,
 410			"clamping sdma_phase_quantum to %uK clock cycles\n",
 411				  value << unit);
 412		}
 413		phase_quantum =
 414			value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 415			unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 416	}
 417
 418	for (i = 0; i < adev->sdma.num_instances; i++) {
 419		if (enable && amdgpu_sdma_phase_quantum) {
 420			WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
 421			       phase_quantum);
 422			WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
 423			       phase_quantum);
 424			WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
 425			       phase_quantum);
 426		}
 427
 428		if (!amdgpu_sriov_vf(adev)) {
 429			f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
 430			f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 431					AUTO_CTXSW_ENABLE, enable ? 1 : 0);
 432			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
 433		}
 434	}
 435
 436}
 437
 438/**
 439 * sdma_v5_2_enable - stop the async dma engines
 440 *
 441 * @adev: amdgpu_device pointer
 442 * @enable: enable/disable the DMA MEs.
 443 *
 444 * Halt or unhalt the async dma engines.
 445 */
 446static void sdma_v5_2_enable(struct amdgpu_device *adev, bool enable)
 447{
 448	u32 f32_cntl;
 449	int i;
 450
 451	if (!enable) {
 452		sdma_v5_2_gfx_stop(adev);
 453		sdma_v5_2_rlc_stop(adev);
 454	}
 455
 456	if (!amdgpu_sriov_vf(adev)) {
 457		for (i = 0; i < adev->sdma.num_instances; i++) {
 458			f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 459			f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
 460			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
 461		}
 462	}
 463}
 464
 465/**
 466 * sdma_v5_2_gfx_resume - setup and start the async dma engines
 467 *
 468 * @adev: amdgpu_device pointer
 469 *
 470 * Set up the gfx DMA ring buffers and enable them.
 471 * Returns 0 for success, error for failure.
 472 */
 473static int sdma_v5_2_gfx_resume(struct amdgpu_device *adev)
 474{
 475	struct amdgpu_ring *ring;
 476	u32 rb_cntl, ib_cntl;
 477	u32 rb_bufsz;
 478	u32 doorbell;
 479	u32 doorbell_offset;
 480	u32 temp;
 481	u32 wptr_poll_cntl;
 482	u64 wptr_gpu_addr;
 483	int i, r;
 484
 485	for (i = 0; i < adev->sdma.num_instances; i++) {
 486		ring = &adev->sdma.instance[i].ring;
 487
 488		if (!amdgpu_sriov_vf(adev))
 489			WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 490
 491		/* Set ring buffer size in dwords */
 492		rb_bufsz = order_base_2(ring->ring_size / 4);
 493		rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 494		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 495#ifdef __BIG_ENDIAN
 496		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 497		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 498					RPTR_WRITEBACK_SWAP_ENABLE, 1);
 499#endif
 500		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 501
 502		/* Initialize the ring buffer's read and write pointers */
 503		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
 504		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
 505		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
 506		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
 507
 508		/* setup the wptr shadow polling */
 509		wptr_gpu_addr = ring->wptr_gpu_addr;
 510		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
 511		       lower_32_bits(wptr_gpu_addr));
 512		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
 513		       upper_32_bits(wptr_gpu_addr));
 514		wptr_poll_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i,
 515							 mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 516		wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
 517					       SDMA0_GFX_RB_WPTR_POLL_CNTL,
 518					       F32_POLL_ENABLE, 1);
 519		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
 520		       wptr_poll_cntl);
 521
 522		/* set the wb address whether it's enabled or not */
 523		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
 524		       upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
 525		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
 526		       lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
 527
 528		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 529
 530		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
 531		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
 532
 533		ring->wptr = 0;
 534
 535		/* before programing wptr to a less value, need set minor_ptr_update first */
 536		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
 537
 538		if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 539			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr << 2));
 540			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr << 2));
 541		}
 542
 543		doorbell = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
 544		doorbell_offset = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
 545
 546		if (ring->use_doorbell) {
 547			doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
 548			doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
 549					OFFSET, ring->doorbell_index);
 550		} else {
 551			doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
 552		}
 553		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
 554		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
 555
 556		adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 557						      ring->doorbell_index,
 558						      adev->doorbell_index.sdma_doorbell_range);
 559
 560		if (amdgpu_sriov_vf(adev))
 561			sdma_v5_2_ring_set_wptr(ring);
 562
 563		/* set minor_ptr_update to 0 after wptr programed */
 564
 565		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
 566
 567		/* SRIOV VF has no control of any of registers below */
 568		if (!amdgpu_sriov_vf(adev)) {
 569			/* set utc l1 enable flag always to 1 */
 570			temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
 571			temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
 572
 573			/* enable MCBP */
 574			temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1);
 575			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
 576
 577			/* Set up RESP_MODE to non-copy addresses */
 578			temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));
 579			temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
 580			temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
 581			WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);
 582
 583			/* program default cache read and write policy */
 584			temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE));
 585			/* clean read policy and write policy bits */
 586			temp &= 0xFF0FFF;
 587			temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
 588				 (CACHE_WRITE_POLICY_L2__DEFAULT << 14) |
 589				 SDMA0_UTCL1_PAGE__LLC_NOALLOC_MASK);
 590			WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp);
 591
 592			/* unhalt engine */
 593			temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 594			temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
 595			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
 596		}
 597
 598		/* enable DMA RB */
 599		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 600		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 601
 602		ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 603		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 604#ifdef __BIG_ENDIAN
 605		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 606#endif
 607		/* enable DMA IBs */
 608		WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 609
 
 
 610		if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 611			sdma_v5_2_ctx_switch_enable(adev, true);
 612			sdma_v5_2_enable(adev, true);
 613		}
 614
 615		r = amdgpu_ring_test_helper(ring);
 616		if (r)
 
 617			return r;
 
 
 
 
 618	}
 619
 620	return 0;
 621}
 622
 623/**
 624 * sdma_v5_2_rlc_resume - setup and start the async dma engines
 625 *
 626 * @adev: amdgpu_device pointer
 627 *
 628 * Set up the compute DMA queues and enable them.
 629 * Returns 0 for success, error for failure.
 630 */
 631static int sdma_v5_2_rlc_resume(struct amdgpu_device *adev)
 632{
 633	return 0;
 634}
 635
 636/**
 637 * sdma_v5_2_load_microcode - load the sDMA ME ucode
 638 *
 639 * @adev: amdgpu_device pointer
 640 *
 641 * Loads the sDMA0/1/2/3 ucode.
 642 * Returns 0 for success, -EINVAL if the ucode is not available.
 643 */
 644static int sdma_v5_2_load_microcode(struct amdgpu_device *adev)
 645{
 646	const struct sdma_firmware_header_v1_0 *hdr;
 647	const __le32 *fw_data;
 648	u32 fw_size;
 649	int i, j;
 650
 651	/* halt the MEs */
 652	sdma_v5_2_enable(adev, false);
 653
 654	for (i = 0; i < adev->sdma.num_instances; i++) {
 655		if (!adev->sdma.instance[i].fw)
 656			return -EINVAL;
 657
 658		hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 659		amdgpu_ucode_print_sdma_hdr(&hdr->header);
 660		fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 661
 662		fw_data = (const __le32 *)
 663			(adev->sdma.instance[i].fw->data +
 664				le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 665
 666		WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
 667
 668		for (j = 0; j < fw_size; j++) {
 669			if (amdgpu_emu_mode == 1 && j % 500 == 0)
 670				msleep(1);
 671			WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
 672		}
 673
 674		WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
 675	}
 676
 677	return 0;
 678}
 679
 680static int sdma_v5_2_soft_reset(void *handle)
 681{
 682	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 683	u32 grbm_soft_reset;
 684	u32 tmp;
 685	int i;
 686
 687	for (i = 0; i < adev->sdma.num_instances; i++) {
 688		grbm_soft_reset = REG_SET_FIELD(0,
 689						GRBM_SOFT_RESET, SOFT_RESET_SDMA0,
 690						1);
 691		grbm_soft_reset <<= i;
 692
 693		tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 694		tmp |= grbm_soft_reset;
 695		DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp);
 696		WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
 697		tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 698
 699		udelay(50);
 700
 701		tmp &= ~grbm_soft_reset;
 702		WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
 703		tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 704
 705		udelay(50);
 706	}
 707
 708	return 0;
 709}
 710
 711/**
 712 * sdma_v5_2_start - setup and start the async dma engines
 713 *
 714 * @adev: amdgpu_device pointer
 715 *
 716 * Set up the DMA engines and enable them.
 717 * Returns 0 for success, error for failure.
 718 */
 719static int sdma_v5_2_start(struct amdgpu_device *adev)
 720{
 721	int r = 0;
 722
 723	if (amdgpu_sriov_vf(adev)) {
 724		sdma_v5_2_ctx_switch_enable(adev, false);
 725		sdma_v5_2_enable(adev, false);
 726
 727		/* set RB registers */
 728		r = sdma_v5_2_gfx_resume(adev);
 729		return r;
 730	}
 731
 732	if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 733		r = sdma_v5_2_load_microcode(adev);
 734		if (r)
 735			return r;
 736
 737		/* The value of mmSDMA_F32_CNTL is invalid the moment after loading fw */
 738		if (amdgpu_emu_mode == 1)
 739			msleep(1000);
 740	}
 741
 
 
 
 
 
 
 742	sdma_v5_2_soft_reset(adev);
 743	/* unhalt the MEs */
 744	sdma_v5_2_enable(adev, true);
 745	/* enable sdma ring preemption */
 746	sdma_v5_2_ctx_switch_enable(adev, true);
 747
 748	/* start the gfx rings and rlc compute queues */
 749	r = sdma_v5_2_gfx_resume(adev);
 
 
 750	if (r)
 751		return r;
 752	r = sdma_v5_2_rlc_resume(adev);
 753
 754	return r;
 755}
 756
 757static int sdma_v5_2_mqd_init(struct amdgpu_device *adev, void *mqd,
 758			      struct amdgpu_mqd_prop *prop)
 759{
 760	struct v10_sdma_mqd *m = mqd;
 761	uint64_t wb_gpu_addr;
 762
 763	m->sdmax_rlcx_rb_cntl =
 764		order_base_2(prop->queue_size / 4) << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
 765		1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 766		6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT |
 767		1 << SDMA0_RLC0_RB_CNTL__RB_PRIV__SHIFT;
 768
 769	m->sdmax_rlcx_rb_base = lower_32_bits(prop->hqd_base_gpu_addr >> 8);
 770	m->sdmax_rlcx_rb_base_hi = upper_32_bits(prop->hqd_base_gpu_addr >> 8);
 771
 772	m->sdmax_rlcx_rb_wptr_poll_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, 0,
 773						  mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 774
 775	wb_gpu_addr = prop->wptr_gpu_addr;
 776	m->sdmax_rlcx_rb_wptr_poll_addr_lo = lower_32_bits(wb_gpu_addr);
 777	m->sdmax_rlcx_rb_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr);
 778
 779	wb_gpu_addr = prop->rptr_gpu_addr;
 780	m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits(wb_gpu_addr);
 781	m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits(wb_gpu_addr);
 782
 783	m->sdmax_rlcx_ib_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, 0,
 784							mmSDMA0_GFX_IB_CNTL));
 785
 786	m->sdmax_rlcx_doorbell_offset =
 787		prop->doorbell_index << SDMA0_RLC0_DOORBELL_OFFSET__OFFSET__SHIFT;
 788
 789	m->sdmax_rlcx_doorbell = REG_SET_FIELD(0, SDMA0_RLC0_DOORBELL, ENABLE, 1);
 790
 791	return 0;
 792}
 793
 794static void sdma_v5_2_set_mqd_funcs(struct amdgpu_device *adev)
 795{
 796	adev->mqds[AMDGPU_HW_IP_DMA].mqd_size = sizeof(struct v10_sdma_mqd);
 797	adev->mqds[AMDGPU_HW_IP_DMA].init_mqd = sdma_v5_2_mqd_init;
 798}
 799
 800/**
 801 * sdma_v5_2_ring_test_ring - simple async dma engine test
 802 *
 803 * @ring: amdgpu_ring structure holding ring information
 804 *
 805 * Test the DMA engine by writing using it to write an
 806 * value to memory.
 807 * Returns 0 for success, error for failure.
 808 */
 809static int sdma_v5_2_ring_test_ring(struct amdgpu_ring *ring)
 810{
 811	struct amdgpu_device *adev = ring->adev;
 812	unsigned i;
 813	unsigned index;
 814	int r;
 815	u32 tmp;
 816	u64 gpu_addr;
 817	volatile uint32_t *cpu_ptr = NULL;
 818
 819	tmp = 0xCAFEDEAD;
 820
 821	if (ring->is_mes_queue) {
 822		uint32_t offset = 0;
 823		offset = amdgpu_mes_ctx_get_offs(ring,
 824					 AMDGPU_MES_CTX_PADDING_OFFS);
 825		gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 826		cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 827		*cpu_ptr = tmp;
 828	} else {
 829		r = amdgpu_device_wb_get(adev, &index);
 830		if (r) {
 831			dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 832			return r;
 833		}
 834
 835		gpu_addr = adev->wb.gpu_addr + (index * 4);
 836		adev->wb.wb[index] = cpu_to_le32(tmp);
 837	}
 838
 839	r = amdgpu_ring_alloc(ring, 20);
 840	if (r) {
 841		DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 842		amdgpu_device_wb_free(adev, index);
 843		return r;
 844	}
 845
 846	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 847			  SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 848	amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 849	amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 850	amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 851	amdgpu_ring_write(ring, 0xDEADBEEF);
 852	amdgpu_ring_commit(ring);
 853
 854	for (i = 0; i < adev->usec_timeout; i++) {
 855		if (ring->is_mes_queue)
 856			tmp = le32_to_cpu(*cpu_ptr);
 857		else
 858			tmp = le32_to_cpu(adev->wb.wb[index]);
 859		if (tmp == 0xDEADBEEF)
 860			break;
 861		if (amdgpu_emu_mode == 1)
 862			msleep(1);
 863		else
 864			udelay(1);
 865	}
 866
 867	if (i >= adev->usec_timeout)
 868		r = -ETIMEDOUT;
 869
 870	if (!ring->is_mes_queue)
 871		amdgpu_device_wb_free(adev, index);
 872
 873	return r;
 874}
 875
 876/**
 877 * sdma_v5_2_ring_test_ib - test an IB on the DMA engine
 878 *
 879 * @ring: amdgpu_ring structure holding ring information
 880 * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 881 *
 882 * Test a simple IB in the DMA ring.
 883 * Returns 0 on success, error on failure.
 884 */
 885static int sdma_v5_2_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 886{
 887	struct amdgpu_device *adev = ring->adev;
 888	struct amdgpu_ib ib;
 889	struct dma_fence *f = NULL;
 890	unsigned index;
 891	long r;
 892	u32 tmp = 0;
 893	u64 gpu_addr;
 894	volatile uint32_t *cpu_ptr = NULL;
 895
 896	tmp = 0xCAFEDEAD;
 897	memset(&ib, 0, sizeof(ib));
 898
 899	if (ring->is_mes_queue) {
 900		uint32_t offset = 0;
 901		offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS);
 902		ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 903		ib.ptr = (void *)amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 904
 905		offset = amdgpu_mes_ctx_get_offs(ring,
 906					 AMDGPU_MES_CTX_PADDING_OFFS);
 907		gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 908		cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 909		*cpu_ptr = tmp;
 910	} else {
 911		r = amdgpu_device_wb_get(adev, &index);
 912		if (r) {
 913			dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
 914			return r;
 915		}
 916
 917		gpu_addr = adev->wb.gpu_addr + (index * 4);
 918		adev->wb.wb[index] = cpu_to_le32(tmp);
 919
 920		r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib);
 921		if (r) {
 922			DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
 923			goto err0;
 924		}
 925	}
 926
 927	ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 928		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 929	ib.ptr[1] = lower_32_bits(gpu_addr);
 930	ib.ptr[2] = upper_32_bits(gpu_addr);
 931	ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
 932	ib.ptr[4] = 0xDEADBEEF;
 933	ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 934	ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 935	ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 936	ib.length_dw = 8;
 937
 938	r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 939	if (r)
 940		goto err1;
 941
 942	r = dma_fence_wait_timeout(f, false, timeout);
 943	if (r == 0) {
 944		DRM_ERROR("amdgpu: IB test timed out\n");
 945		r = -ETIMEDOUT;
 946		goto err1;
 947	} else if (r < 0) {
 948		DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 949		goto err1;
 950	}
 951
 952	if (ring->is_mes_queue)
 953		tmp = le32_to_cpu(*cpu_ptr);
 954	else
 955		tmp = le32_to_cpu(adev->wb.wb[index]);
 956
 957	if (tmp == 0xDEADBEEF)
 958		r = 0;
 959	else
 960		r = -EINVAL;
 961
 962err1:
 963	amdgpu_ib_free(adev, &ib, NULL);
 964	dma_fence_put(f);
 965err0:
 966	if (!ring->is_mes_queue)
 967		amdgpu_device_wb_free(adev, index);
 968	return r;
 969}
 970
 971
 972/**
 973 * sdma_v5_2_vm_copy_pte - update PTEs by copying them from the GART
 974 *
 975 * @ib: indirect buffer to fill with commands
 976 * @pe: addr of the page entry
 977 * @src: src addr to copy from
 978 * @count: number of page entries to update
 979 *
 980 * Update PTEs by copying them from the GART using sDMA.
 981 */
 982static void sdma_v5_2_vm_copy_pte(struct amdgpu_ib *ib,
 983				  uint64_t pe, uint64_t src,
 984				  unsigned count)
 985{
 986	unsigned bytes = count * 8;
 987
 988	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
 989		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
 990	ib->ptr[ib->length_dw++] = bytes - 1;
 991	ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
 992	ib->ptr[ib->length_dw++] = lower_32_bits(src);
 993	ib->ptr[ib->length_dw++] = upper_32_bits(src);
 994	ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 995	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 996
 997}
 998
 999/**
1000 * sdma_v5_2_vm_write_pte - update PTEs by writing them manually
1001 *
1002 * @ib: indirect buffer to fill with commands
1003 * @pe: addr of the page entry
1004 * @value: dst addr to write into pe
1005 * @count: number of page entries to update
1006 * @incr: increase next addr by incr bytes
1007 *
1008 * Update PTEs by writing them manually using sDMA.
1009 */
1010static void sdma_v5_2_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1011				   uint64_t value, unsigned count,
1012				   uint32_t incr)
1013{
1014	unsigned ndw = count * 2;
1015
1016	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1017		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1018	ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1019	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1020	ib->ptr[ib->length_dw++] = ndw - 1;
1021	for (; ndw > 0; ndw -= 2) {
1022		ib->ptr[ib->length_dw++] = lower_32_bits(value);
1023		ib->ptr[ib->length_dw++] = upper_32_bits(value);
1024		value += incr;
1025	}
1026}
1027
1028/**
1029 * sdma_v5_2_vm_set_pte_pde - update the page tables using sDMA
1030 *
1031 * @ib: indirect buffer to fill with commands
1032 * @pe: addr of the page entry
1033 * @addr: dst addr to write into pe
1034 * @count: number of page entries to update
1035 * @incr: increase next addr by incr bytes
1036 * @flags: access flags
1037 *
1038 * Update the page tables using sDMA.
1039 */
1040static void sdma_v5_2_vm_set_pte_pde(struct amdgpu_ib *ib,
1041				     uint64_t pe,
1042				     uint64_t addr, unsigned count,
1043				     uint32_t incr, uint64_t flags)
1044{
1045	/* for physically contiguous pages (vram) */
1046	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1047	ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1048	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1049	ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1050	ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1051	ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1052	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1053	ib->ptr[ib->length_dw++] = incr; /* increment size */
1054	ib->ptr[ib->length_dw++] = 0;
1055	ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1056}
1057
1058/**
1059 * sdma_v5_2_ring_pad_ib - pad the IB
1060 *
1061 * @ib: indirect buffer to fill with padding
1062 * @ring: amdgpu_ring structure holding ring information
1063 *
1064 * Pad the IB with NOPs to a boundary multiple of 8.
1065 */
1066static void sdma_v5_2_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1067{
1068	struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1069	u32 pad_count;
1070	int i;
1071
1072	pad_count = (-ib->length_dw) & 0x7;
1073	for (i = 0; i < pad_count; i++)
1074		if (sdma && sdma->burst_nop && (i == 0))
1075			ib->ptr[ib->length_dw++] =
1076				SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1077				SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1078		else
1079			ib->ptr[ib->length_dw++] =
1080				SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1081}
1082
1083
1084/**
1085 * sdma_v5_2_ring_emit_pipeline_sync - sync the pipeline
1086 *
1087 * @ring: amdgpu_ring pointer
1088 *
1089 * Make sure all previous operations are completed (CIK).
1090 */
1091static void sdma_v5_2_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1092{
1093	uint32_t seq = ring->fence_drv.sync_seq;
1094	uint64_t addr = ring->fence_drv.gpu_addr;
1095
1096	/* wait for idle */
1097	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1098			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1099			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1100			  SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1101	amdgpu_ring_write(ring, addr & 0xfffffffc);
1102	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1103	amdgpu_ring_write(ring, seq); /* reference */
1104	amdgpu_ring_write(ring, 0xffffffff); /* mask */
1105	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1106			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1107}
1108
1109
1110/**
1111 * sdma_v5_2_ring_emit_vm_flush - vm flush using sDMA
1112 *
1113 * @ring: amdgpu_ring pointer
1114 * @vmid: vmid number to use
1115 * @pd_addr: address
1116 *
1117 * Update the page table base and flush the VM TLB
1118 * using sDMA.
1119 */
1120static void sdma_v5_2_ring_emit_vm_flush(struct amdgpu_ring *ring,
1121					 unsigned vmid, uint64_t pd_addr)
1122{
1123	amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1124}
1125
1126static void sdma_v5_2_ring_emit_wreg(struct amdgpu_ring *ring,
1127				     uint32_t reg, uint32_t val)
1128{
1129	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1130			  SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1131	amdgpu_ring_write(ring, reg);
1132	amdgpu_ring_write(ring, val);
1133}
1134
1135static void sdma_v5_2_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1136					 uint32_t val, uint32_t mask)
1137{
1138	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1139			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1140			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1141	amdgpu_ring_write(ring, reg << 2);
1142	amdgpu_ring_write(ring, 0);
1143	amdgpu_ring_write(ring, val); /* reference */
1144	amdgpu_ring_write(ring, mask); /* mask */
1145	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1146			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1147}
1148
1149static void sdma_v5_2_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1150						   uint32_t reg0, uint32_t reg1,
1151						   uint32_t ref, uint32_t mask)
1152{
1153	amdgpu_ring_emit_wreg(ring, reg0, ref);
1154	/* wait for a cycle to reset vm_inv_eng*_ack */
1155	amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1156	amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1157}
1158
1159static int sdma_v5_2_early_init(void *handle)
1160{
1161	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1162	int r;
1163
1164	r = amdgpu_sdma_init_microcode(adev, 0, true);
1165	if (r)
1166		return r;
1167
1168	sdma_v5_2_set_ring_funcs(adev);
1169	sdma_v5_2_set_buffer_funcs(adev);
1170	sdma_v5_2_set_vm_pte_funcs(adev);
1171	sdma_v5_2_set_irq_funcs(adev);
1172	sdma_v5_2_set_mqd_funcs(adev);
1173
1174	return 0;
1175}
1176
1177static unsigned sdma_v5_2_seq_to_irq_id(int seq_num)
1178{
1179	switch (seq_num) {
1180	case 0:
1181		return SOC15_IH_CLIENTID_SDMA0;
1182	case 1:
1183		return SOC15_IH_CLIENTID_SDMA1;
1184	case 2:
1185		return SOC15_IH_CLIENTID_SDMA2;
1186	case 3:
1187		return SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid;
1188	default:
1189		break;
1190	}
1191	return -EINVAL;
1192}
1193
1194static unsigned sdma_v5_2_seq_to_trap_id(int seq_num)
1195{
1196	switch (seq_num) {
1197	case 0:
1198		return SDMA0_5_0__SRCID__SDMA_TRAP;
1199	case 1:
1200		return SDMA1_5_0__SRCID__SDMA_TRAP;
1201	case 2:
1202		return SDMA2_5_0__SRCID__SDMA_TRAP;
1203	case 3:
1204		return SDMA3_5_0__SRCID__SDMA_TRAP;
1205	default:
1206		break;
1207	}
1208	return -EINVAL;
1209}
1210
1211static int sdma_v5_2_sw_init(void *handle)
1212{
1213	struct amdgpu_ring *ring;
1214	int r, i;
1215	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1216
1217	/* SDMA trap event */
1218	for (i = 0; i < adev->sdma.num_instances; i++) {
1219		r = amdgpu_irq_add_id(adev, sdma_v5_2_seq_to_irq_id(i),
1220				      sdma_v5_2_seq_to_trap_id(i),
1221				      &adev->sdma.trap_irq);
1222		if (r)
1223			return r;
1224	}
1225
 
 
 
 
 
 
1226	for (i = 0; i < adev->sdma.num_instances; i++) {
1227		ring = &adev->sdma.instance[i].ring;
1228		ring->ring_obj = NULL;
1229		ring->use_doorbell = true;
1230		ring->me = i;
1231
1232		DRM_INFO("use_doorbell being set to: [%s]\n",
1233				ring->use_doorbell?"true":"false");
1234
1235		ring->doorbell_index =
1236			(adev->doorbell_index.sdma_engine[i] << 1); //get DWORD offset
1237
1238		ring->vm_hub = AMDGPU_GFXHUB(0);
1239		sprintf(ring->name, "sdma%d", i);
1240		r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
1241				     AMDGPU_SDMA_IRQ_INSTANCE0 + i,
1242				     AMDGPU_RING_PRIO_DEFAULT, NULL);
1243		if (r)
1244			return r;
1245	}
1246
1247	return r;
1248}
1249
1250static int sdma_v5_2_sw_fini(void *handle)
1251{
1252	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1253	int i;
1254
1255	for (i = 0; i < adev->sdma.num_instances; i++)
1256		amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1257
1258	amdgpu_sdma_destroy_inst_ctx(adev, true);
1259
1260	return 0;
1261}
1262
1263static int sdma_v5_2_hw_init(void *handle)
1264{
1265	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1266
1267	return sdma_v5_2_start(adev);
1268}
1269
1270static int sdma_v5_2_hw_fini(void *handle)
1271{
1272	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1273
1274	if (amdgpu_sriov_vf(adev))
 
 
1275		return 0;
 
1276
1277	sdma_v5_2_ctx_switch_enable(adev, false);
1278	sdma_v5_2_enable(adev, false);
1279
1280	return 0;
1281}
1282
1283static int sdma_v5_2_suspend(void *handle)
1284{
1285	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1286
1287	return sdma_v5_2_hw_fini(adev);
1288}
1289
1290static int sdma_v5_2_resume(void *handle)
1291{
1292	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1293
1294	return sdma_v5_2_hw_init(adev);
1295}
1296
1297static bool sdma_v5_2_is_idle(void *handle)
1298{
1299	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1300	u32 i;
1301
1302	for (i = 0; i < adev->sdma.num_instances; i++) {
1303		u32 tmp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1304
1305		if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1306			return false;
1307	}
1308
1309	return true;
1310}
1311
1312static int sdma_v5_2_wait_for_idle(void *handle)
1313{
1314	unsigned i;
1315	u32 sdma0, sdma1, sdma2, sdma3;
1316	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1317
1318	for (i = 0; i < adev->usec_timeout; i++) {
1319		sdma0 = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1320		sdma1 = RREG32(sdma_v5_2_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1321		sdma2 = RREG32(sdma_v5_2_get_reg_offset(adev, 2, mmSDMA0_STATUS_REG));
1322		sdma3 = RREG32(sdma_v5_2_get_reg_offset(adev, 3, mmSDMA0_STATUS_REG));
1323
1324		if (sdma0 & sdma1 & sdma2 & sdma3 & SDMA0_STATUS_REG__IDLE_MASK)
1325			return 0;
1326		udelay(1);
1327	}
1328	return -ETIMEDOUT;
1329}
1330
1331static int sdma_v5_2_ring_preempt_ib(struct amdgpu_ring *ring)
1332{
1333	int i, r = 0;
1334	struct amdgpu_device *adev = ring->adev;
1335	u32 index = 0;
1336	u64 sdma_gfx_preempt;
1337
1338	amdgpu_sdma_get_index_from_ring(ring, &index);
1339	sdma_gfx_preempt =
1340		sdma_v5_2_get_reg_offset(adev, index, mmSDMA0_GFX_PREEMPT);
1341
1342	/* assert preemption condition */
1343	amdgpu_ring_set_preempt_cond_exec(ring, false);
1344
1345	/* emit the trailing fence */
1346	ring->trail_seq += 1;
1347	amdgpu_ring_alloc(ring, 10);
1348	sdma_v5_2_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1349				  ring->trail_seq, 0);
1350	amdgpu_ring_commit(ring);
1351
1352	/* assert IB preemption */
1353	WREG32(sdma_gfx_preempt, 1);
1354
1355	/* poll the trailing fence */
1356	for (i = 0; i < adev->usec_timeout; i++) {
1357		if (ring->trail_seq ==
1358		    le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1359			break;
1360		udelay(1);
1361	}
1362
1363	if (i >= adev->usec_timeout) {
1364		r = -EINVAL;
1365		DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1366	}
1367
1368	/* deassert IB preemption */
1369	WREG32(sdma_gfx_preempt, 0);
1370
1371	/* deassert the preemption condition */
1372	amdgpu_ring_set_preempt_cond_exec(ring, true);
1373	return r;
1374}
1375
1376static int sdma_v5_2_set_trap_irq_state(struct amdgpu_device *adev,
1377					struct amdgpu_irq_src *source,
1378					unsigned type,
1379					enum amdgpu_interrupt_state state)
1380{
1381	u32 sdma_cntl;
1382	u32 reg_offset = sdma_v5_2_get_reg_offset(adev, type, mmSDMA0_CNTL);
1383
1384	if (!amdgpu_sriov_vf(adev)) {
1385		sdma_cntl = RREG32(reg_offset);
1386		sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1387			       state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1388		WREG32(reg_offset, sdma_cntl);
1389	}
1390
1391	return 0;
1392}
1393
1394static int sdma_v5_2_process_trap_irq(struct amdgpu_device *adev,
1395				      struct amdgpu_irq_src *source,
1396				      struct amdgpu_iv_entry *entry)
1397{
1398	uint32_t mes_queue_id = entry->src_data[0];
1399
1400	DRM_DEBUG("IH: SDMA trap\n");
1401
1402	if (adev->enable_mes && (mes_queue_id & AMDGPU_FENCE_MES_QUEUE_FLAG)) {
1403		struct amdgpu_mes_queue *queue;
1404
1405		mes_queue_id &= AMDGPU_FENCE_MES_QUEUE_ID_MASK;
1406
1407		spin_lock(&adev->mes.queue_id_lock);
1408		queue = idr_find(&adev->mes.queue_id_idr, mes_queue_id);
1409		if (queue) {
1410			DRM_DEBUG("process smda queue id = %d\n", mes_queue_id);
1411			amdgpu_fence_process(queue->ring);
1412		}
1413		spin_unlock(&adev->mes.queue_id_lock);
1414		return 0;
1415	}
1416
1417	switch (entry->client_id) {
1418	case SOC15_IH_CLIENTID_SDMA0:
1419		switch (entry->ring_id) {
1420		case 0:
1421			amdgpu_fence_process(&adev->sdma.instance[0].ring);
1422			break;
1423		case 1:
1424			/* XXX compute */
1425			break;
1426		case 2:
1427			/* XXX compute */
1428			break;
1429		case 3:
1430			/* XXX page queue*/
1431			break;
1432		}
1433		break;
1434	case SOC15_IH_CLIENTID_SDMA1:
1435		switch (entry->ring_id) {
1436		case 0:
1437			amdgpu_fence_process(&adev->sdma.instance[1].ring);
1438			break;
1439		case 1:
1440			/* XXX compute */
1441			break;
1442		case 2:
1443			/* XXX compute */
1444			break;
1445		case 3:
1446			/* XXX page queue*/
1447			break;
1448		}
1449		break;
1450	case SOC15_IH_CLIENTID_SDMA2:
1451		switch (entry->ring_id) {
1452		case 0:
1453			amdgpu_fence_process(&adev->sdma.instance[2].ring);
1454			break;
1455		case 1:
1456			/* XXX compute */
1457			break;
1458		case 2:
1459			/* XXX compute */
1460			break;
1461		case 3:
1462			/* XXX page queue*/
1463			break;
1464		}
1465		break;
1466	case SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid:
1467		switch (entry->ring_id) {
1468		case 0:
1469			amdgpu_fence_process(&adev->sdma.instance[3].ring);
1470			break;
1471		case 1:
1472			/* XXX compute */
1473			break;
1474		case 2:
1475			/* XXX compute */
1476			break;
1477		case 3:
1478			/* XXX page queue*/
1479			break;
1480		}
1481		break;
1482	}
1483	return 0;
1484}
1485
1486static int sdma_v5_2_process_illegal_inst_irq(struct amdgpu_device *adev,
1487					      struct amdgpu_irq_src *source,
1488					      struct amdgpu_iv_entry *entry)
1489{
1490	return 0;
1491}
1492
1493static bool sdma_v5_2_firmware_mgcg_support(struct amdgpu_device *adev,
1494						     int i)
1495{
1496	switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1497	case IP_VERSION(5, 2, 1):
1498		if (adev->sdma.instance[i].fw_version < 70)
1499			return false;
1500		break;
1501	case IP_VERSION(5, 2, 3):
1502		if (adev->sdma.instance[i].fw_version < 47)
1503			return false;
1504		break;
1505	case IP_VERSION(5, 2, 7):
1506		if (adev->sdma.instance[i].fw_version < 9)
1507			return false;
1508		break;
1509	default:
1510		return true;
1511	}
1512
1513	return true;
1514
1515}
1516
1517static void sdma_v5_2_update_medium_grain_clock_gating(struct amdgpu_device *adev,
1518						       bool enable)
1519{
1520	uint32_t data, def;
1521	int i;
1522
1523	for (i = 0; i < adev->sdma.num_instances; i++) {
1524
1525		if (!sdma_v5_2_firmware_mgcg_support(adev, i))
1526			adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_MGCG;
1527
1528		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1529			/* Enable sdma clock gating */
1530			def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1531			data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1532				  SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1533				  SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1534				  SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1535				  SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1536				  SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1537			if (def != data)
1538				WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1539		} else {
1540			/* Disable sdma clock gating */
1541			def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1542			data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1543				 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1544				 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1545				 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1546				 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1547				 SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1548			if (def != data)
1549				WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1550		}
1551	}
1552}
1553
1554static void sdma_v5_2_update_medium_grain_light_sleep(struct amdgpu_device *adev,
1555						      bool enable)
1556{
1557	uint32_t data, def;
1558	int i;
1559
1560	for (i = 0; i < adev->sdma.num_instances; i++) {
1561		if (adev->sdma.instance[i].fw_version < 70 &&
1562		    amdgpu_ip_version(adev, SDMA0_HWIP, 0) ==
1563			    IP_VERSION(5, 2, 1))
1564			adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_LS;
1565
1566		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1567			/* Enable sdma mem light sleep */
1568			def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1569			data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1570			if (def != data)
1571				WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1572
1573		} else {
1574			/* Disable sdma mem light sleep */
1575			def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1576			data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1577			if (def != data)
1578				WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1579
1580		}
1581	}
1582}
1583
1584static int sdma_v5_2_set_clockgating_state(void *handle,
1585					   enum amd_clockgating_state state)
1586{
1587	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1588
1589	if (amdgpu_sriov_vf(adev))
1590		return 0;
1591
1592	switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1593	case IP_VERSION(5, 2, 0):
1594	case IP_VERSION(5, 2, 2):
1595	case IP_VERSION(5, 2, 1):
1596	case IP_VERSION(5, 2, 4):
1597	case IP_VERSION(5, 2, 5):
1598	case IP_VERSION(5, 2, 6):
1599	case IP_VERSION(5, 2, 3):
1600	case IP_VERSION(5, 2, 7):
1601		sdma_v5_2_update_medium_grain_clock_gating(adev,
1602				state == AMD_CG_STATE_GATE);
1603		sdma_v5_2_update_medium_grain_light_sleep(adev,
1604				state == AMD_CG_STATE_GATE);
1605		break;
1606	default:
1607		break;
1608	}
1609
1610	return 0;
1611}
1612
1613static int sdma_v5_2_set_powergating_state(void *handle,
1614					  enum amd_powergating_state state)
1615{
1616	return 0;
1617}
1618
1619static void sdma_v5_2_get_clockgating_state(void *handle, u64 *flags)
1620{
1621	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1622	int data;
1623
1624	if (amdgpu_sriov_vf(adev))
1625		*flags = 0;
1626
1627	/* AMD_CG_SUPPORT_SDMA_MGCG */
1628	data = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_CLK_CTRL));
1629	if (!(data & SDMA0_CLK_CTRL__CGCG_EN_OVERRIDE_MASK))
1630		*flags |= AMD_CG_SUPPORT_SDMA_MGCG;
1631
1632	/* AMD_CG_SUPPORT_SDMA_LS */
1633	data = RREG32_KIQ(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL));
1634	if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1635		*flags |= AMD_CG_SUPPORT_SDMA_LS;
1636}
1637
1638static void sdma_v5_2_ring_begin_use(struct amdgpu_ring *ring)
1639{
1640	struct amdgpu_device *adev = ring->adev;
1641
1642	/* SDMA 5.2.3 (RMB) FW doesn't seem to properly
1643	 * disallow GFXOFF in some cases leading to
1644	 * hangs in SDMA.  Disallow GFXOFF while SDMA is active.
1645	 * We can probably just limit this to 5.2.3,
1646	 * but it shouldn't hurt for other parts since
1647	 * this GFXOFF will be disallowed anyway when SDMA is
1648	 * active, this just makes it explicit.
1649	 */
1650	amdgpu_gfx_off_ctrl(adev, false);
1651}
1652
1653static void sdma_v5_2_ring_end_use(struct amdgpu_ring *ring)
1654{
1655	struct amdgpu_device *adev = ring->adev;
1656
1657	/* SDMA 5.2.3 (RMB) FW doesn't seem to properly
1658	 * disallow GFXOFF in some cases leading to
1659	 * hangs in SDMA.  Allow GFXOFF when SDMA is complete.
1660	 */
1661	amdgpu_gfx_off_ctrl(adev, true);
1662}
1663
1664const struct amd_ip_funcs sdma_v5_2_ip_funcs = {
1665	.name = "sdma_v5_2",
1666	.early_init = sdma_v5_2_early_init,
1667	.late_init = NULL,
1668	.sw_init = sdma_v5_2_sw_init,
1669	.sw_fini = sdma_v5_2_sw_fini,
1670	.hw_init = sdma_v5_2_hw_init,
1671	.hw_fini = sdma_v5_2_hw_fini,
1672	.suspend = sdma_v5_2_suspend,
1673	.resume = sdma_v5_2_resume,
1674	.is_idle = sdma_v5_2_is_idle,
1675	.wait_for_idle = sdma_v5_2_wait_for_idle,
1676	.soft_reset = sdma_v5_2_soft_reset,
1677	.set_clockgating_state = sdma_v5_2_set_clockgating_state,
1678	.set_powergating_state = sdma_v5_2_set_powergating_state,
1679	.get_clockgating_state = sdma_v5_2_get_clockgating_state,
1680};
1681
1682static const struct amdgpu_ring_funcs sdma_v5_2_ring_funcs = {
1683	.type = AMDGPU_RING_TYPE_SDMA,
1684	.align_mask = 0xf,
1685	.nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1686	.support_64bit_ptrs = true,
1687	.secure_submission_supported = true,
 
1688	.get_rptr = sdma_v5_2_ring_get_rptr,
1689	.get_wptr = sdma_v5_2_ring_get_wptr,
1690	.set_wptr = sdma_v5_2_ring_set_wptr,
1691	.emit_frame_size =
1692		5 + /* sdma_v5_2_ring_init_cond_exec */
1693		6 + /* sdma_v5_2_ring_emit_hdp_flush */
1694		3 + /* hdp_invalidate */
1695		6 + /* sdma_v5_2_ring_emit_pipeline_sync */
1696		/* sdma_v5_2_ring_emit_vm_flush */
1697		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1698		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1699		10 + 10 + 10, /* sdma_v5_2_ring_emit_fence x3 for user fence, vm fence */
1700	.emit_ib_size = 7 + 6, /* sdma_v5_2_ring_emit_ib */
1701	.emit_ib = sdma_v5_2_ring_emit_ib,
1702	.emit_mem_sync = sdma_v5_2_ring_emit_mem_sync,
1703	.emit_fence = sdma_v5_2_ring_emit_fence,
1704	.emit_pipeline_sync = sdma_v5_2_ring_emit_pipeline_sync,
1705	.emit_vm_flush = sdma_v5_2_ring_emit_vm_flush,
1706	.emit_hdp_flush = sdma_v5_2_ring_emit_hdp_flush,
1707	.test_ring = sdma_v5_2_ring_test_ring,
1708	.test_ib = sdma_v5_2_ring_test_ib,
1709	.insert_nop = sdma_v5_2_ring_insert_nop,
1710	.pad_ib = sdma_v5_2_ring_pad_ib,
1711	.begin_use = sdma_v5_2_ring_begin_use,
1712	.end_use = sdma_v5_2_ring_end_use,
1713	.emit_wreg = sdma_v5_2_ring_emit_wreg,
1714	.emit_reg_wait = sdma_v5_2_ring_emit_reg_wait,
1715	.emit_reg_write_reg_wait = sdma_v5_2_ring_emit_reg_write_reg_wait,
1716	.init_cond_exec = sdma_v5_2_ring_init_cond_exec,
 
1717	.preempt_ib = sdma_v5_2_ring_preempt_ib,
1718};
1719
1720static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev)
1721{
1722	int i;
1723
1724	for (i = 0; i < adev->sdma.num_instances; i++) {
1725		adev->sdma.instance[i].ring.funcs = &sdma_v5_2_ring_funcs;
1726		adev->sdma.instance[i].ring.me = i;
1727	}
1728}
1729
1730static const struct amdgpu_irq_src_funcs sdma_v5_2_trap_irq_funcs = {
1731	.set = sdma_v5_2_set_trap_irq_state,
1732	.process = sdma_v5_2_process_trap_irq,
1733};
1734
1735static const struct amdgpu_irq_src_funcs sdma_v5_2_illegal_inst_irq_funcs = {
1736	.process = sdma_v5_2_process_illegal_inst_irq,
1737};
1738
1739static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev)
1740{
1741	adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1742					adev->sdma.num_instances;
1743	adev->sdma.trap_irq.funcs = &sdma_v5_2_trap_irq_funcs;
1744	adev->sdma.illegal_inst_irq.funcs = &sdma_v5_2_illegal_inst_irq_funcs;
1745}
1746
1747/**
1748 * sdma_v5_2_emit_copy_buffer - copy buffer using the sDMA engine
1749 *
1750 * @ib: indirect buffer to copy to
1751 * @src_offset: src GPU address
1752 * @dst_offset: dst GPU address
1753 * @byte_count: number of bytes to xfer
1754 * @tmz: if a secure copy should be used
1755 *
1756 * Copy GPU buffers using the DMA engine.
1757 * Used by the amdgpu ttm implementation to move pages if
1758 * registered as the asic copy callback.
1759 */
1760static void sdma_v5_2_emit_copy_buffer(struct amdgpu_ib *ib,
1761				       uint64_t src_offset,
1762				       uint64_t dst_offset,
1763				       uint32_t byte_count,
1764				       bool tmz)
1765{
1766	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1767		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
1768		SDMA_PKT_COPY_LINEAR_HEADER_TMZ(tmz ? 1 : 0);
1769	ib->ptr[ib->length_dw++] = byte_count - 1;
1770	ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1771	ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1772	ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1773	ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1774	ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1775}
1776
1777/**
1778 * sdma_v5_2_emit_fill_buffer - fill buffer using the sDMA engine
1779 *
1780 * @ib: indirect buffer to fill
1781 * @src_data: value to write to buffer
1782 * @dst_offset: dst GPU address
1783 * @byte_count: number of bytes to xfer
1784 *
1785 * Fill GPU buffers using the DMA engine.
1786 */
1787static void sdma_v5_2_emit_fill_buffer(struct amdgpu_ib *ib,
1788				       uint32_t src_data,
1789				       uint64_t dst_offset,
1790				       uint32_t byte_count)
1791{
1792	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1793	ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1794	ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1795	ib->ptr[ib->length_dw++] = src_data;
1796	ib->ptr[ib->length_dw++] = byte_count - 1;
1797}
1798
1799static const struct amdgpu_buffer_funcs sdma_v5_2_buffer_funcs = {
1800	.copy_max_bytes = 0x400000,
1801	.copy_num_dw = 7,
1802	.emit_copy_buffer = sdma_v5_2_emit_copy_buffer,
1803
1804	.fill_max_bytes = 0x400000,
1805	.fill_num_dw = 5,
1806	.emit_fill_buffer = sdma_v5_2_emit_fill_buffer,
1807};
1808
1809static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev)
1810{
1811	if (adev->mman.buffer_funcs == NULL) {
1812		adev->mman.buffer_funcs = &sdma_v5_2_buffer_funcs;
1813		adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1814	}
1815}
1816
1817static const struct amdgpu_vm_pte_funcs sdma_v5_2_vm_pte_funcs = {
1818	.copy_pte_num_dw = 7,
1819	.copy_pte = sdma_v5_2_vm_copy_pte,
1820	.write_pte = sdma_v5_2_vm_write_pte,
1821	.set_pte_pde = sdma_v5_2_vm_set_pte_pde,
1822};
1823
1824static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev)
1825{
1826	unsigned i;
1827
1828	if (adev->vm_manager.vm_pte_funcs == NULL) {
1829		adev->vm_manager.vm_pte_funcs = &sdma_v5_2_vm_pte_funcs;
1830		for (i = 0; i < adev->sdma.num_instances; i++) {
1831			adev->vm_manager.vm_pte_scheds[i] =
1832				&adev->sdma.instance[i].ring.sched;
1833		}
1834		adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1835	}
1836}
1837
1838const struct amdgpu_ip_block_version sdma_v5_2_ip_block = {
1839	.type = AMD_IP_BLOCK_TYPE_SDMA,
1840	.major = 5,
1841	.minor = 2,
1842	.rev = 0,
1843	.funcs = &sdma_v5_2_ip_funcs,
1844};