1/*
   2 * Copyright 2016 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/firmware.h>
  25#include <drm/drmP.h>
 
 
  26#include "amdgpu.h"
  27#include "amdgpu_ucode.h"
  28#include "amdgpu_trace.h"
  29
  30#include "sdma0/sdma0_4_0_offset.h"
  31#include "sdma0/sdma0_4_0_sh_mask.h"
  32#include "sdma1/sdma1_4_0_offset.h"
  33#include "sdma1/sdma1_4_0_sh_mask.h"
  34#include "hdp/hdp_4_0_offset.h"
 
 
 
 
 
 
 
 
 
 
 
  35#include "sdma0/sdma0_4_1_default.h"
  36
  37#include "soc15_common.h"
  38#include "soc15.h"
  39#include "vega10_sdma_pkt_open.h"
  40
 
 
 
 
 
 
  41MODULE_FIRMWARE("amdgpu/vega10_sdma.bin");
  42MODULE_FIRMWARE("amdgpu/vega10_sdma1.bin");
  43MODULE_FIRMWARE("amdgpu/vega12_sdma.bin");
  44MODULE_FIRMWARE("amdgpu/vega12_sdma1.bin");
 
 
  45MODULE_FIRMWARE("amdgpu/raven_sdma.bin");
 
 
 
 
 
 
  46
  47#define SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK  0x000000F8L
  48#define SDMA0_POWER_CNTL__ON_OFF_STATUS_DURATION_TIME_MASK 0xFC000000L
  49
 
 
 
 
 
  50static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev);
  51static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev);
  52static void sdma_v4_0_set_vm_pte_funcs(struct amdgpu_device *adev);
  53static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev);
 
  54
  55static const struct soc15_reg_golden golden_settings_sdma_4[] = {
  56	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CHICKEN_BITS, 0xfe931f07, 0x02831d07),
  57	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CLK_CTRL, 0xff000ff0, 0x3f000100),
  58	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_IB_CNTL, 0x800f0100, 0x00000100),
  59	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  60	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_PAGE_IB_CNTL, 0x800f0100, 0x00000100),
  61	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_PAGE_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  62	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_POWER_CNTL, 0x003ff006, 0x0003c000),
  63	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_IB_CNTL, 0x800f0100, 0x00000100),
  64	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  65	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0100, 0x00000100),
  66	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  67	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0),
  68	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CHICKEN_BITS, 0xfe931f07, 0x02831f07),
  69	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CLK_CTRL, 0xffffffff, 0x3f000100),
  70	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GFX_IB_CNTL, 0x800f0100, 0x00000100),
  71	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GFX_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  72	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_PAGE_IB_CNTL, 0x800f0100, 0x00000100),
  73	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_PAGE_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  74	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_POWER_CNTL, 0x003ff000, 0x0003c000),
  75	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC0_IB_CNTL, 0x800f0100, 0x00000100),
  76	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC0_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  77	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_IB_CNTL, 0x800f0100, 0x00000100),
  78	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  79	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_PAGE, 0x000003ff, 0x000003c0)
 
  80};
  81
  82static const struct soc15_reg_golden golden_settings_sdma_vg10[] = {
  83	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG, 0x0018773f, 0x00104002),
  84	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002),
 
 
  85	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG, 0x0018773f, 0x00104002),
  86	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104002)
 
  87};
  88
  89static const struct soc15_reg_golden golden_settings_sdma_vg12[] = {
  90	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG, 0x0018773f, 0x00104001),
  91	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104001),
 
 
  92	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG, 0x0018773f, 0x00104001),
  93	SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00104001)
 
  94};
  95
  96static const struct soc15_reg_golden golden_settings_sdma_4_1[] =
  97{
  98	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CHICKEN_BITS, 0xfe931f07, 0x02831d07),
  99	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CLK_CTRL, 0xffffffff, 0x3f000100),
 100	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_IB_CNTL, 0x800f0111, 0x00000100),
 101	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 102	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_POWER_CNTL, 0xfc3fffff, 0x40000051),
 103	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_IB_CNTL, 0x800f0111, 0x00000100),
 104	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 105	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100),
 106	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 107	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 108};
 109
 110static const struct soc15_reg_golden golden_settings_sdma_rv1[] =
 111{
 112	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG, 0x0018773f, 0x00000002),
 113	SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_GB_ADDR_CONFIG_READ, 0x0018773f, 0x00000002)
 114};
 115
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 116static u32 sdma_v4_0_get_reg_offset(struct amdgpu_device *adev,
 117		u32 instance, u32 offset)
 118{
 119	return ( 0 == instance ? (adev->reg_offset[SDMA0_HWIP][0][0] + offset) :
 120			(adev->reg_offset[SDMA1_HWIP][0][0] + offset));
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 121}
 122
 123static void sdma_v4_0_init_golden_registers(struct amdgpu_device *adev)
 124{
 125	switch (adev->asic_type) {
 126	case CHIP_VEGA10:
 127		soc15_program_register_sequence(adev,
 128						 golden_settings_sdma_4,
 129						 ARRAY_SIZE(golden_settings_sdma_4));
 130		soc15_program_register_sequence(adev,
 131						 golden_settings_sdma_vg10,
 132						 ARRAY_SIZE(golden_settings_sdma_vg10));
 133		break;
 134	case CHIP_VEGA12:
 135		soc15_program_register_sequence(adev,
 136						golden_settings_sdma_4,
 137						ARRAY_SIZE(golden_settings_sdma_4));
 138		soc15_program_register_sequence(adev,
 139						golden_settings_sdma_vg12,
 140						ARRAY_SIZE(golden_settings_sdma_vg12));
 141		break;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 142	case CHIP_RAVEN:
 143		soc15_program_register_sequence(adev,
 144						 golden_settings_sdma_4_1,
 145						 ARRAY_SIZE(golden_settings_sdma_4_1));
 
 
 
 
 
 
 
 
 
 
 146		soc15_program_register_sequence(adev,
 147						 golden_settings_sdma_rv1,
 148						 ARRAY_SIZE(golden_settings_sdma_rv1));
 149		break;
 150	default:
 151		break;
 152	}
 153}
 154
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 155/**
 156 * sdma_v4_0_init_microcode - load ucode images from disk
 157 *
 158 * @adev: amdgpu_device pointer
 159 *
 160 * Use the firmware interface to load the ucode images into
 161 * the driver (not loaded into hw).
 162 * Returns 0 on success, error on failure.
 163 */
 164
 165// emulation only, won't work on real chip
 166// vega10 real chip need to use PSP to load firmware
 167static int sdma_v4_0_init_microcode(struct amdgpu_device *adev)
 168{
 169	const char *chip_name;
 170	char fw_name[30];
 171	int err = 0, i;
 172	struct amdgpu_firmware_info *info = NULL;
 173	const struct common_firmware_header *header = NULL;
 174	const struct sdma_firmware_header_v1_0 *hdr;
 175
 176	DRM_DEBUG("\n");
 177
 178	switch (adev->asic_type) {
 179	case CHIP_VEGA10:
 180		chip_name = "vega10";
 181		break;
 182	case CHIP_VEGA12:
 183		chip_name = "vega12";
 184		break;
 
 
 
 185	case CHIP_RAVEN:
 186		chip_name = "raven";
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 187		break;
 188	default:
 189		BUG();
 190	}
 191
 192	for (i = 0; i < adev->sdma.num_instances; i++) {
 193		if (i == 0)
 194			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
 195		else
 196			snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
 197		err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
 198		if (err)
 199			goto out;
 200		err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
 201		if (err)
 202			goto out;
 203		hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 204		adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 205		adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 206		if (adev->sdma.instance[i].feature_version >= 20)
 207			adev->sdma.instance[i].burst_nop = true;
 208		DRM_DEBUG("psp_load == '%s'\n",
 209				adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false");
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 210
 211		if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
 
 212			info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 213			info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 214			info->fw = adev->sdma.instance[i].fw;
 215			header = (const struct common_firmware_header *)info->fw->data;
 216			adev->firmware.fw_size +=
 217				ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 218		}
 219	}
 
 220out:
 221	if (err) {
 222		DRM_ERROR("sdma_v4_0: Failed to load firmware \"%s\"\n", fw_name);
 223		for (i = 0; i < adev->sdma.num_instances; i++) {
 224			release_firmware(adev->sdma.instance[i].fw);
 225			adev->sdma.instance[i].fw = NULL;
 226		}
 227	}
 228	return err;
 229}
 230
 231/**
 232 * sdma_v4_0_ring_get_rptr - get the current read pointer
 233 *
 234 * @ring: amdgpu ring pointer
 235 *
 236 * Get the current rptr from the hardware (VEGA10+).
 237 */
 238static uint64_t sdma_v4_0_ring_get_rptr(struct amdgpu_ring *ring)
 239{
 240	u64 *rptr;
 241
 242	/* XXX check if swapping is necessary on BE */
 243	rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]);
 244
 245	DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 246	return ((*rptr) >> 2);
 247}
 248
 249/**
 250 * sdma_v4_0_ring_get_wptr - get the current write pointer
 251 *
 252 * @ring: amdgpu ring pointer
 253 *
 254 * Get the current wptr from the hardware (VEGA10+).
 255 */
 256static uint64_t sdma_v4_0_ring_get_wptr(struct amdgpu_ring *ring)
 257{
 258	struct amdgpu_device *adev = ring->adev;
 259	u64 wptr;
 260
 261	if (ring->use_doorbell) {
 262		/* XXX check if swapping is necessary on BE */
 263		wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
 264		DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
 265	} else {
 266		u32 lowbit, highbit;
 267		int me = (ring == &adev->sdma.instance[0].ring) ? 0 : 1;
 268
 269		lowbit = RREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR)) >> 2;
 270		highbit = RREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR_HI)) >> 2;
 271
 272		DRM_DEBUG("wptr [%i]high== 0x%08x low==0x%08x\n",
 273				me, highbit, lowbit);
 274		wptr = highbit;
 275		wptr = wptr << 32;
 276		wptr |= lowbit;
 
 
 277	}
 278
 279	return wptr >> 2;
 280}
 281
 282/**
 283 * sdma_v4_0_ring_set_wptr - commit the write pointer
 284 *
 285 * @ring: amdgpu ring pointer
 286 *
 287 * Write the wptr back to the hardware (VEGA10+).
 288 */
 289static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring)
 290{
 291	struct amdgpu_device *adev = ring->adev;
 292
 293	DRM_DEBUG("Setting write pointer\n");
 294	if (ring->use_doorbell) {
 295		u64 *wb = (u64 *)&adev->wb.wb[ring->wptr_offs];
 296
 297		DRM_DEBUG("Using doorbell -- "
 298				"wptr_offs == 0x%08x "
 299				"lower_32_bits(ring->wptr) << 2 == 0x%08x "
 300				"upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
 301				ring->wptr_offs,
 302				lower_32_bits(ring->wptr << 2),
 303				upper_32_bits(ring->wptr << 2));
 304		/* XXX check if swapping is necessary on BE */
 305		WRITE_ONCE(*wb, (ring->wptr << 2));
 306		DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 307				ring->doorbell_index, ring->wptr << 2);
 308		WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 309	} else {
 310		int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
 311
 312		DRM_DEBUG("Not using doorbell -- "
 313				"mmSDMA%i_GFX_RB_WPTR == 0x%08x "
 314				"mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 315				me,
 316				lower_32_bits(ring->wptr << 2),
 317				me,
 318				upper_32_bits(ring->wptr << 2));
 319		WREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr << 2));
 320		WREG32(sdma_v4_0_get_reg_offset(adev, me, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr << 2));
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 321	}
 322}
 323
 324static void sdma_v4_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 325{
 326	struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
 327	int i;
 328
 329	for (i = 0; i < count; i++)
 330		if (sdma && sdma->burst_nop && (i == 0))
 331			amdgpu_ring_write(ring, ring->funcs->nop |
 332				SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 333		else
 334			amdgpu_ring_write(ring, ring->funcs->nop);
 335}
 336
 337/**
 338 * sdma_v4_0_ring_emit_ib - Schedule an IB on the DMA engine
 339 *
 340 * @ring: amdgpu ring pointer
 
 341 * @ib: IB object to schedule
 
 342 *
 343 * Schedule an IB in the DMA ring (VEGA10).
 344 */
 345static void sdma_v4_0_ring_emit_ib(struct amdgpu_ring *ring,
 346					struct amdgpu_ib *ib,
 347					unsigned vmid, bool ctx_switch)
 
 348{
 
 
 349	/* IB packet must end on a 8 DW boundary */
 350	sdma_v4_0_ring_insert_nop(ring, (10 - (lower_32_bits(ring->wptr) & 7)) % 8);
 351
 352	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 353			  SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 354	/* base must be 32 byte aligned */
 355	amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 356	amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 357	amdgpu_ring_write(ring, ib->length_dw);
 358	amdgpu_ring_write(ring, 0);
 359	amdgpu_ring_write(ring, 0);
 360
 361}
 362
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 363/**
 364 * sdma_v4_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 365 *
 366 * @ring: amdgpu ring pointer
 367 *
 368 * Emit an hdp flush packet on the requested DMA ring.
 369 */
 370static void sdma_v4_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 371{
 372	struct amdgpu_device *adev = ring->adev;
 373	u32 ref_and_mask = 0;
 374	const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio_funcs->hdp_flush_reg;
 375
 376	if (ring == &ring->adev->sdma.instance[0].ring)
 377		ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0;
 378	else
 379		ref_and_mask = nbio_hf_reg->ref_and_mask_sdma1;
 380
 381	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 382			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 383			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 384	amdgpu_ring_write(ring, (adev->nbio_funcs->get_hdp_flush_done_offset(adev)) << 2);
 385	amdgpu_ring_write(ring, (adev->nbio_funcs->get_hdp_flush_req_offset(adev)) << 2);
 386	amdgpu_ring_write(ring, ref_and_mask); /* reference */
 387	amdgpu_ring_write(ring, ref_and_mask); /* mask */
 388	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 389			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 390}
 391
 392/**
 393 * sdma_v4_0_ring_emit_fence - emit a fence on the DMA ring
 394 *
 395 * @ring: amdgpu ring pointer
 396 * @fence: amdgpu fence object
 
 
 397 *
 398 * Add a DMA fence packet to the ring to write
 399 * the fence seq number and DMA trap packet to generate
 400 * an interrupt if needed (VEGA10).
 401 */
 402static void sdma_v4_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 403				      unsigned flags)
 404{
 405	bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 406	/* write the fence */
 407	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 408	/* zero in first two bits */
 409	BUG_ON(addr & 0x3);
 410	amdgpu_ring_write(ring, lower_32_bits(addr));
 411	amdgpu_ring_write(ring, upper_32_bits(addr));
 412	amdgpu_ring_write(ring, lower_32_bits(seq));
 413
 414	/* optionally write high bits as well */
 415	if (write64bit) {
 416		addr += 4;
 417		amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 418		/* zero in first two bits */
 419		BUG_ON(addr & 0x3);
 420		amdgpu_ring_write(ring, lower_32_bits(addr));
 421		amdgpu_ring_write(ring, upper_32_bits(addr));
 422		amdgpu_ring_write(ring, upper_32_bits(seq));
 423	}
 424
 425	/* generate an interrupt */
 426	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 427	amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 428}
 429
 430
 431/**
 432 * sdma_v4_0_gfx_stop - stop the gfx async dma engines
 433 *
 434 * @adev: amdgpu_device pointer
 435 *
 436 * Stop the gfx async dma ring buffers (VEGA10).
 437 */
 438static void sdma_v4_0_gfx_stop(struct amdgpu_device *adev)
 439{
 440	struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
 441	struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
 442	u32 rb_cntl, ib_cntl;
 443	int i;
 444
 445	if ((adev->mman.buffer_funcs_ring == sdma0) ||
 446	    (adev->mman.buffer_funcs_ring == sdma1))
 
 
 447			amdgpu_ttm_set_buffer_funcs_status(adev, false);
 
 
 448
 449	for (i = 0; i < adev->sdma.num_instances; i++) {
 450		rb_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 451		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 452		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 453		ib_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 454		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 455		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 456	}
 457
 458	sdma0->ready = false;
 459	sdma1->ready = false;
 460}
 461
 462/**
 463 * sdma_v4_0_rlc_stop - stop the compute async dma engines
 464 *
 465 * @adev: amdgpu_device pointer
 466 *
 467 * Stop the compute async dma queues (VEGA10).
 468 */
 469static void sdma_v4_0_rlc_stop(struct amdgpu_device *adev)
 470{
 471	/* XXX todo */
 472}
 473
 474/**
 475 * sdma_v_0_ctx_switch_enable - stop the async dma engines context switch
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 476 *
 477 * @adev: amdgpu_device pointer
 478 * @enable: enable/disable the DMA MEs context switch.
 479 *
 480 * Halt or unhalt the async dma engines context switch (VEGA10).
 481 */
 482static void sdma_v4_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 483{
 484	u32 f32_cntl, phase_quantum = 0;
 485	int i;
 486
 487	if (amdgpu_sdma_phase_quantum) {
 488		unsigned value = amdgpu_sdma_phase_quantum;
 489		unsigned unit = 0;
 490
 491		while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 492				SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 493			value = (value + 1) >> 1;
 494			unit++;
 495		}
 496		if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 497			    SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 498			value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 499				 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 500			unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 501				SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 502			WARN_ONCE(1,
 503			"clamping sdma_phase_quantum to %uK clock cycles\n",
 504				  value << unit);
 505		}
 506		phase_quantum =
 507			value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 508			unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 509	}
 510
 511	for (i = 0; i < adev->sdma.num_instances; i++) {
 512		f32_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL));
 513		f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 514				AUTO_CTXSW_ENABLE, enable ? 1 : 0);
 515		if (enable && amdgpu_sdma_phase_quantum) {
 516			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
 517			       phase_quantum);
 518			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
 519			       phase_quantum);
 520			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
 521			       phase_quantum);
 522		}
 523		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
 
 
 
 
 
 
 
 
 
 
 
 524	}
 525
 526}
 527
 528/**
 529 * sdma_v4_0_enable - stop the async dma engines
 530 *
 531 * @adev: amdgpu_device pointer
 532 * @enable: enable/disable the DMA MEs.
 533 *
 534 * Halt or unhalt the async dma engines (VEGA10).
 535 */
 536static void sdma_v4_0_enable(struct amdgpu_device *adev, bool enable)
 537{
 538	u32 f32_cntl;
 539	int i;
 540
 541	if (enable == false) {
 542		sdma_v4_0_gfx_stop(adev);
 543		sdma_v4_0_rlc_stop(adev);
 
 
 544	}
 545
 546	for (i = 0; i < adev->sdma.num_instances; i++) {
 547		f32_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 548		f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
 549		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
 550	}
 551}
 552
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 553/**
 554 * sdma_v4_0_gfx_resume - setup and start the async dma engines
 555 *
 556 * @adev: amdgpu_device pointer
 
 557 *
 558 * Set up the gfx DMA ring buffers and enable them (VEGA10).
 559 * Returns 0 for success, error for failure.
 560 */
 561static int sdma_v4_0_gfx_resume(struct amdgpu_device *adev)
 562{
 563	struct amdgpu_ring *ring;
 564	u32 rb_cntl, ib_cntl, wptr_poll_cntl;
 565	u32 rb_bufsz;
 566	u32 wb_offset;
 567	u32 doorbell;
 568	u32 doorbell_offset;
 569	u32 temp;
 570	u64 wptr_gpu_addr;
 571	int i, r;
 572
 573	for (i = 0; i < adev->sdma.num_instances; i++) {
 574		ring = &adev->sdma.instance[i].ring;
 575		wb_offset = (ring->rptr_offs * 4);
 576
 577		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 578
 579		/* Set ring buffer size in dwords */
 580		rb_bufsz = order_base_2(ring->ring_size / 4);
 581		rb_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 582		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 583#ifdef __BIG_ENDIAN
 584		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 585		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 586					RPTR_WRITEBACK_SWAP_ENABLE, 1);
 587#endif
 588		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 589
 590		/* Initialize the ring buffer's read and write pointers */
 591		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
 592		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
 593		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
 594		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 595
 596		/* set the wb address whether it's enabled or not */
 597		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
 598		       upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
 599		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
 600		       lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
 601
 602		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 
 603
 604		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
 605		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
 
 
 
 
 
 
 
 
 
 
 
 
 
 606
 607		ring->wptr = 0;
 
 
 
 
 
 
 608
 609		/* before programing wptr to a less value, need set minor_ptr_update first */
 610		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
 611
 612		if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 613			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2);
 614			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
 615		}
 
 
 
 
 
 
 
 
 
 
 
 
 
 616
 617		doorbell = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
 618		doorbell_offset = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
 619
 620		if (ring->use_doorbell) {
 621			doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
 622			doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 623					OFFSET, ring->doorbell_index);
 624		} else {
 625			doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
 626		}
 627		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
 628		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
 629		adev->nbio_funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 630						      ring->doorbell_index);
 631
 632		if (amdgpu_sriov_vf(adev))
 633			sdma_v4_0_ring_set_wptr(ring);
 634
 635		/* set minor_ptr_update to 0 after wptr programed */
 636		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
 637
 638		/* set utc l1 enable flag always to 1 */
 639		temp = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL));
 640		temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
 641		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
 642
 643		if (!amdgpu_sriov_vf(adev)) {
 644			/* unhalt engine */
 645			temp = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 646			temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
 647			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
 648		}
 649
 650		/* setup the wptr shadow polling */
 651		wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
 652		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
 653		       lower_32_bits(wptr_gpu_addr));
 654		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
 655		       upper_32_bits(wptr_gpu_addr));
 656		wptr_poll_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 657		if (amdgpu_sriov_vf(adev))
 658			wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1);
 659		else
 660			wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0);
 661		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL), wptr_poll_cntl);
 
 
 
 662
 663		/* enable DMA RB */
 664		rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 665		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 666
 667		ib_cntl = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 668		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 669#ifdef __BIG_ENDIAN
 670		ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 671#endif
 672		/* enable DMA IBs */
 673		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 674
 675		ring->ready = true;
 676
 677		if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 678			sdma_v4_0_ctx_switch_enable(adev, true);
 679			sdma_v4_0_enable(adev, true);
 680		}
 681
 682		r = amdgpu_ring_test_ring(ring);
 683		if (r) {
 684			ring->ready = false;
 685			return r;
 686		}
 687
 688		if (adev->mman.buffer_funcs_ring == ring)
 689			amdgpu_ttm_set_buffer_funcs_status(adev, true);
 690
 691	}
 692
 693	return 0;
 694}
 695
 696static void
 697sdma_v4_1_update_power_gating(struct amdgpu_device *adev, bool enable)
 698{
 699	uint32_t def, data;
 700
 701	if (enable && (adev->pg_flags & AMD_PG_SUPPORT_SDMA)) {
 702		/* disable idle interrupt */
 703		def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL));
 704		data |= SDMA0_CNTL__CTXEMPTY_INT_ENABLE_MASK;
 705
 706		if (data != def)
 707			WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL), data);
 708	} else {
 709		/* disable idle interrupt */
 710		def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL));
 711		data &= ~SDMA0_CNTL__CTXEMPTY_INT_ENABLE_MASK;
 712		if (data != def)
 713			WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL), data);
 714	}
 715}
 716
 717static void sdma_v4_1_init_power_gating(struct amdgpu_device *adev)
 718{
 719	uint32_t def, data;
 720
 721	/* Enable HW based PG. */
 722	def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL));
 723	data |= SDMA0_POWER_CNTL__PG_CNTL_ENABLE_MASK;
 724	if (data != def)
 725		WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data);
 726
 727	/* enable interrupt */
 728	def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL));
 729	data |= SDMA0_CNTL__CTXEMPTY_INT_ENABLE_MASK;
 730	if (data != def)
 731		WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CNTL), data);
 732
 733	/* Configure hold time to filter in-valid power on/off request. Use default right now */
 734	def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL));
 735	data &= ~SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK;
 736	data |= (mmSDMA0_POWER_CNTL_DEFAULT & SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK);
 737	/* Configure switch time for hysteresis purpose. Use default right now */
 738	data &= ~SDMA0_POWER_CNTL__ON_OFF_STATUS_DURATION_TIME_MASK;
 739	data |= (mmSDMA0_POWER_CNTL_DEFAULT & SDMA0_POWER_CNTL__ON_OFF_STATUS_DURATION_TIME_MASK);
 740	if(data != def)
 741		WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data);
 742}
 743
 744static void sdma_v4_0_init_pg(struct amdgpu_device *adev)
 745{
 746	if (!(adev->pg_flags & AMD_PG_SUPPORT_SDMA))
 747		return;
 748
 749	switch (adev->asic_type) {
 750	case CHIP_RAVEN:
 
 751		sdma_v4_1_init_power_gating(adev);
 752		sdma_v4_1_update_power_gating(adev, true);
 753		break;
 754	default:
 755		break;
 756	}
 757}
 758
 759/**
 760 * sdma_v4_0_rlc_resume - setup and start the async dma engines
 761 *
 762 * @adev: amdgpu_device pointer
 763 *
 764 * Set up the compute DMA queues and enable them (VEGA10).
 765 * Returns 0 for success, error for failure.
 766 */
 767static int sdma_v4_0_rlc_resume(struct amdgpu_device *adev)
 768{
 769	sdma_v4_0_init_pg(adev);
 770
 771	return 0;
 772}
 773
 774/**
 775 * sdma_v4_0_load_microcode - load the sDMA ME ucode
 776 *
 777 * @adev: amdgpu_device pointer
 778 *
 779 * Loads the sDMA0/1 ucode.
 780 * Returns 0 for success, -EINVAL if the ucode is not available.
 781 */
 782static int sdma_v4_0_load_microcode(struct amdgpu_device *adev)
 783{
 784	const struct sdma_firmware_header_v1_0 *hdr;
 785	const __le32 *fw_data;
 786	u32 fw_size;
 787	int i, j;
 788
 789	/* halt the MEs */
 790	sdma_v4_0_enable(adev, false);
 791
 792	for (i = 0; i < adev->sdma.num_instances; i++) {
 793		if (!adev->sdma.instance[i].fw)
 794			return -EINVAL;
 795
 796		hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 797		amdgpu_ucode_print_sdma_hdr(&hdr->header);
 798		fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 799
 800		fw_data = (const __le32 *)
 801			(adev->sdma.instance[i].fw->data +
 802				le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 803
 804		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
 805
 806		for (j = 0; j < fw_size; j++)
 807			WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
 
 808
 809		WREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
 
 810	}
 811
 812	return 0;
 813}
 814
 815/**
 816 * sdma_v4_0_start - setup and start the async dma engines
 817 *
 818 * @adev: amdgpu_device pointer
 819 *
 820 * Set up the DMA engines and enable them (VEGA10).
 821 * Returns 0 for success, error for failure.
 822 */
 823static int sdma_v4_0_start(struct amdgpu_device *adev)
 824{
 825	int r = 0;
 
 826
 827	if (amdgpu_sriov_vf(adev)) {
 828		sdma_v4_0_ctx_switch_enable(adev, false);
 829		sdma_v4_0_enable(adev, false);
 
 830
 831		/* set RB registers */
 832		r = sdma_v4_0_gfx_resume(adev);
 833		return r;
 
 
 
 
 
 
 
 834	}
 835
 836	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
 837		r = sdma_v4_0_load_microcode(adev);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 838		if (r)
 839			return r;
 840	}
 841
 842	/* unhalt the MEs */
 843	sdma_v4_0_enable(adev, true);
 844	/* enable sdma ring preemption */
 845	sdma_v4_0_ctx_switch_enable(adev, true);
 846
 847	/* start the gfx rings and rlc compute queues */
 848	r = sdma_v4_0_gfx_resume(adev);
 849	if (r)
 850		return r;
 851	r = sdma_v4_0_rlc_resume(adev);
 
 
 
 
 
 
 
 
 
 
 
 
 
 852
 853	return r;
 854}
 855
 856/**
 857 * sdma_v4_0_ring_test_ring - simple async dma engine test
 858 *
 859 * @ring: amdgpu_ring structure holding ring information
 860 *
 861 * Test the DMA engine by writing using it to write an
 862 * value to memory. (VEGA10).
 863 * Returns 0 for success, error for failure.
 864 */
 865static int sdma_v4_0_ring_test_ring(struct amdgpu_ring *ring)
 866{
 867	struct amdgpu_device *adev = ring->adev;
 868	unsigned i;
 869	unsigned index;
 870	int r;
 871	u32 tmp;
 872	u64 gpu_addr;
 873
 874	r = amdgpu_device_wb_get(adev, &index);
 875	if (r) {
 876		dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 877		return r;
 878	}
 879
 880	gpu_addr = adev->wb.gpu_addr + (index * 4);
 881	tmp = 0xCAFEDEAD;
 882	adev->wb.wb[index] = cpu_to_le32(tmp);
 883
 884	r = amdgpu_ring_alloc(ring, 5);
 885	if (r) {
 886		DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 887		amdgpu_device_wb_free(adev, index);
 888		return r;
 889	}
 890
 891	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 892			  SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 893	amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 894	amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 895	amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 896	amdgpu_ring_write(ring, 0xDEADBEEF);
 897	amdgpu_ring_commit(ring);
 898
 899	for (i = 0; i < adev->usec_timeout; i++) {
 900		tmp = le32_to_cpu(adev->wb.wb[index]);
 901		if (tmp == 0xDEADBEEF)
 902			break;
 903		DRM_UDELAY(1);
 904	}
 905
 906	if (i < adev->usec_timeout) {
 907		DRM_DEBUG("ring test on %d succeeded in %d usecs\n", ring->idx, i);
 908	} else {
 909		DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
 910			  ring->idx, tmp);
 911		r = -EINVAL;
 912	}
 913	amdgpu_device_wb_free(adev, index);
 914
 
 
 915	return r;
 916}
 917
 918/**
 919 * sdma_v4_0_ring_test_ib - test an IB on the DMA engine
 920 *
 921 * @ring: amdgpu_ring structure holding ring information
 
 922 *
 923 * Test a simple IB in the DMA ring (VEGA10).
 924 * Returns 0 on success, error on failure.
 925 */
 926static int sdma_v4_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 927{
 928	struct amdgpu_device *adev = ring->adev;
 929	struct amdgpu_ib ib;
 930	struct dma_fence *f = NULL;
 931	unsigned index;
 932	long r;
 933	u32 tmp = 0;
 934	u64 gpu_addr;
 935
 936	r = amdgpu_device_wb_get(adev, &index);
 937	if (r) {
 938		dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
 939		return r;
 940	}
 941
 942	gpu_addr = adev->wb.gpu_addr + (index * 4);
 943	tmp = 0xCAFEDEAD;
 944	adev->wb.wb[index] = cpu_to_le32(tmp);
 945	memset(&ib, 0, sizeof(ib));
 946	r = amdgpu_ib_get(adev, NULL, 256, &ib);
 947	if (r) {
 948		DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
 949		goto err0;
 950	}
 951
 952	ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 953		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 954	ib.ptr[1] = lower_32_bits(gpu_addr);
 955	ib.ptr[2] = upper_32_bits(gpu_addr);
 956	ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
 957	ib.ptr[4] = 0xDEADBEEF;
 958	ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 959	ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 960	ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 961	ib.length_dw = 8;
 962
 963	r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 964	if (r)
 965		goto err1;
 966
 967	r = dma_fence_wait_timeout(f, false, timeout);
 968	if (r == 0) {
 969		DRM_ERROR("amdgpu: IB test timed out\n");
 970		r = -ETIMEDOUT;
 971		goto err1;
 972	} else if (r < 0) {
 973		DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 974		goto err1;
 975	}
 976	tmp = le32_to_cpu(adev->wb.wb[index]);
 977	if (tmp == 0xDEADBEEF) {
 978		DRM_DEBUG("ib test on ring %d succeeded\n", ring->idx);
 979		r = 0;
 980	} else {
 981		DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
 982		r = -EINVAL;
 983	}
 984err1:
 985	amdgpu_ib_free(adev, &ib, NULL);
 986	dma_fence_put(f);
 987err0:
 988	amdgpu_device_wb_free(adev, index);
 989	return r;
 990}
 991
 992
 993/**
 994 * sdma_v4_0_vm_copy_pte - update PTEs by copying them from the GART
 995 *
 996 * @ib: indirect buffer to fill with commands
 997 * @pe: addr of the page entry
 998 * @src: src addr to copy from
 999 * @count: number of page entries to update
1000 *
1001 * Update PTEs by copying them from the GART using sDMA (VEGA10).
1002 */
1003static void sdma_v4_0_vm_copy_pte(struct amdgpu_ib *ib,
1004				  uint64_t pe, uint64_t src,
1005				  unsigned count)
1006{
1007	unsigned bytes = count * 8;
1008
1009	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1010		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1011	ib->ptr[ib->length_dw++] = bytes - 1;
1012	ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1013	ib->ptr[ib->length_dw++] = lower_32_bits(src);
1014	ib->ptr[ib->length_dw++] = upper_32_bits(src);
1015	ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1016	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1017
1018}
1019
1020/**
1021 * sdma_v4_0_vm_write_pte - update PTEs by writing them manually
1022 *
1023 * @ib: indirect buffer to fill with commands
1024 * @pe: addr of the page entry
1025 * @addr: dst addr to write into pe
1026 * @count: number of page entries to update
1027 * @incr: increase next addr by incr bytes
1028 * @flags: access flags
1029 *
1030 * Update PTEs by writing them manually using sDMA (VEGA10).
1031 */
1032static void sdma_v4_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1033				   uint64_t value, unsigned count,
1034				   uint32_t incr)
1035{
1036	unsigned ndw = count * 2;
1037
1038	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1039		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1040	ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1041	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1042	ib->ptr[ib->length_dw++] = ndw - 1;
1043	for (; ndw > 0; ndw -= 2) {
1044		ib->ptr[ib->length_dw++] = lower_32_bits(value);
1045		ib->ptr[ib->length_dw++] = upper_32_bits(value);
1046		value += incr;
1047	}
1048}
1049
1050/**
1051 * sdma_v4_0_vm_set_pte_pde - update the page tables using sDMA
1052 *
1053 * @ib: indirect buffer to fill with commands
1054 * @pe: addr of the page entry
1055 * @addr: dst addr to write into pe
1056 * @count: number of page entries to update
1057 * @incr: increase next addr by incr bytes
1058 * @flags: access flags
1059 *
1060 * Update the page tables using sDMA (VEGA10).
1061 */
1062static void sdma_v4_0_vm_set_pte_pde(struct amdgpu_ib *ib,
1063				     uint64_t pe,
1064				     uint64_t addr, unsigned count,
1065				     uint32_t incr, uint64_t flags)
1066{
1067	/* for physically contiguous pages (vram) */
1068	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1069	ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1070	ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1071	ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1072	ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1073	ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1074	ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1075	ib->ptr[ib->length_dw++] = incr; /* increment size */
1076	ib->ptr[ib->length_dw++] = 0;
1077	ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1078}
1079
1080/**
1081 * sdma_v4_0_ring_pad_ib - pad the IB to the required number of dw
1082 *
 
1083 * @ib: indirect buffer to fill with padding
1084 *
1085 */
1086static void sdma_v4_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1087{
1088	struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
1089	u32 pad_count;
1090	int i;
1091
1092	pad_count = (8 - (ib->length_dw & 0x7)) % 8;
1093	for (i = 0; i < pad_count; i++)
1094		if (sdma && sdma->burst_nop && (i == 0))
1095			ib->ptr[ib->length_dw++] =
1096				SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1097				SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1098		else
1099			ib->ptr[ib->length_dw++] =
1100				SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1101}
1102
1103
1104/**
1105 * sdma_v4_0_ring_emit_pipeline_sync - sync the pipeline
1106 *
1107 * @ring: amdgpu_ring pointer
1108 *
1109 * Make sure all previous operations are completed (CIK).
1110 */
1111static void sdma_v4_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1112{
1113	uint32_t seq = ring->fence_drv.sync_seq;
1114	uint64_t addr = ring->fence_drv.gpu_addr;
1115
1116	/* wait for idle */
1117	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1118			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1119			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1120			  SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1121	amdgpu_ring_write(ring, addr & 0xfffffffc);
1122	amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1123	amdgpu_ring_write(ring, seq); /* reference */
1124	amdgpu_ring_write(ring, 0xffffffff); /* mask */
1125	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1126			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1127}
1128
1129
1130/**
1131 * sdma_v4_0_ring_emit_vm_flush - vm flush using sDMA
1132 *
1133 * @ring: amdgpu_ring pointer
1134 * @vm: amdgpu_vm pointer
 
1135 *
1136 * Update the page table base and flush the VM TLB
1137 * using sDMA (VEGA10).
1138 */
1139static void sdma_v4_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
1140					 unsigned vmid, uint64_t pd_addr)
1141{
1142	amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1143}
1144
1145static void sdma_v4_0_ring_emit_wreg(struct amdgpu_ring *ring,
1146				     uint32_t reg, uint32_t val)
1147{
1148	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1149			  SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1150	amdgpu_ring_write(ring, reg);
1151	amdgpu_ring_write(ring, val);
1152}
1153
1154static void sdma_v4_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1155					 uint32_t val, uint32_t mask)
1156{
1157	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1158			  SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1159			  SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1160	amdgpu_ring_write(ring, reg << 2);
1161	amdgpu_ring_write(ring, 0);
1162	amdgpu_ring_write(ring, val); /* reference */
1163	amdgpu_ring_write(ring, mask); /* mask */
1164	amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1165			  SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
 
 
 
 
 
 
 
 
 
1166}
1167
1168static int sdma_v4_0_early_init(void *handle)
1169{
1170	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
1171
1172	if (adev->asic_type == CHIP_RAVEN)
1173		adev->sdma.num_instances = 1;
 
 
 
 
1174	else
1175		adev->sdma.num_instances = 2;
1176
 
 
 
 
 
 
 
 
 
 
 
 
1177	sdma_v4_0_set_ring_funcs(adev);
1178	sdma_v4_0_set_buffer_funcs(adev);
1179	sdma_v4_0_set_vm_pte_funcs(adev);
1180	sdma_v4_0_set_irq_funcs(adev);
 
1181
1182	return 0;
1183}
1184
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1185
1186static int sdma_v4_0_sw_init(void *handle)
1187{
1188	struct amdgpu_ring *ring;
1189	int r, i;
1190	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1191
1192	/* SDMA trap event */
1193	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_SDMA0, 224,
1194			      &adev->sdma.trap_irq);
1195	if (r)
1196		return r;
 
 
 
1197
1198	/* SDMA trap event */
1199	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_SDMA1, 224,
1200			      &adev->sdma.trap_irq);
1201	if (r)
1202		return r;
 
 
 
1203
1204	r = sdma_v4_0_init_microcode(adev);
1205	if (r) {
1206		DRM_ERROR("Failed to load sdma firmware!\n");
1207		return r;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1208	}
1209
1210	for (i = 0; i < adev->sdma.num_instances; i++) {
1211		ring = &adev->sdma.instance[i].ring;
1212		ring->ring_obj = NULL;
1213		ring->use_doorbell = true;
1214
1215		DRM_INFO("use_doorbell being set to: [%s]\n",
1216				ring->use_doorbell?"true":"false");
1217
1218		ring->doorbell_index = (i == 0) ?
1219			(AMDGPU_DOORBELL64_sDMA_ENGINE0 << 1) //get DWORD offset
1220			: (AMDGPU_DOORBELL64_sDMA_ENGINE1 << 1); // get DWORD offset
1221
1222		sprintf(ring->name, "sdma%d", i);
1223		r = amdgpu_ring_init(adev, ring, 1024,
1224				     &adev->sdma.trap_irq,
1225				     (i == 0) ?
1226				     AMDGPU_SDMA_IRQ_TRAP0 :
1227				     AMDGPU_SDMA_IRQ_TRAP1);
1228		if (r)
1229			return r;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1230	}
1231
1232	return r;
1233}
1234
1235static int sdma_v4_0_sw_fini(void *handle)
1236{
1237	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1238	int i;
1239
1240	for (i = 0; i < adev->sdma.num_instances; i++)
1241		amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1242
1243	for (i = 0; i < adev->sdma.num_instances; i++) {
1244		release_firmware(adev->sdma.instance[i].fw);
1245		adev->sdma.instance[i].fw = NULL;
 
1246	}
1247
 
 
1248	return 0;
1249}
1250
1251static int sdma_v4_0_hw_init(void *handle)
1252{
1253	int r;
1254	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1255
1256	sdma_v4_0_init_golden_registers(adev);
 
 
 
 
1257
1258	r = sdma_v4_0_start(adev);
1259
1260	return r;
1261}
1262
1263static int sdma_v4_0_hw_fini(void *handle)
1264{
1265	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
1266
1267	if (amdgpu_sriov_vf(adev))
1268		return 0;
1269
 
 
 
 
 
1270	sdma_v4_0_ctx_switch_enable(adev, false);
1271	sdma_v4_0_enable(adev, false);
1272
 
 
 
1273	return 0;
1274}
1275
1276static int sdma_v4_0_suspend(void *handle)
1277{
1278	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1279
1280	return sdma_v4_0_hw_fini(adev);
1281}
1282
1283static int sdma_v4_0_resume(void *handle)
1284{
1285	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1286
1287	return sdma_v4_0_hw_init(adev);
1288}
1289
1290static bool sdma_v4_0_is_idle(void *handle)
1291{
1292	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1293	u32 i;
1294
1295	for (i = 0; i < adev->sdma.num_instances; i++) {
1296		u32 tmp = RREG32(sdma_v4_0_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1297
1298		if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1299			return false;
1300	}
1301
1302	return true;
1303}
1304
1305static int sdma_v4_0_wait_for_idle(void *handle)
1306{
1307	unsigned i;
1308	u32 sdma0, sdma1;
1309	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1310
1311	for (i = 0; i < adev->usec_timeout; i++) {
1312		sdma0 = RREG32(sdma_v4_0_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1313		sdma1 = RREG32(sdma_v4_0_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1314
1315		if (sdma0 & sdma1 & SDMA0_STATUS_REG__IDLE_MASK)
 
 
1316			return 0;
1317		udelay(1);
1318	}
1319	return -ETIMEDOUT;
1320}
1321
1322static int sdma_v4_0_soft_reset(void *handle)
1323{
1324	/* todo */
1325
1326	return 0;
1327}
1328
1329static int sdma_v4_0_set_trap_irq_state(struct amdgpu_device *adev,
1330					struct amdgpu_irq_src *source,
1331					unsigned type,
1332					enum amdgpu_interrupt_state state)
1333{
1334	u32 sdma_cntl;
1335
1336	u32 reg_offset = (type == AMDGPU_SDMA_IRQ_TRAP0) ?
1337		sdma_v4_0_get_reg_offset(adev, 0, mmSDMA0_CNTL) :
1338		sdma_v4_0_get_reg_offset(adev, 1, mmSDMA0_CNTL);
1339
1340	sdma_cntl = RREG32(reg_offset);
1341	sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1342		       state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1343	WREG32(reg_offset, sdma_cntl);
1344
1345	return 0;
1346}
1347
1348static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev,
1349				      struct amdgpu_irq_src *source,
1350				      struct amdgpu_iv_entry *entry)
1351{
 
 
1352	DRM_DEBUG("IH: SDMA trap\n");
1353	switch (entry->client_id) {
1354	case SOC15_IH_CLIENTID_SDMA0:
1355		switch (entry->ring_id) {
1356		case 0:
1357			amdgpu_fence_process(&adev->sdma.instance[0].ring);
1358			break;
1359		case 1:
1360			/* XXX compute */
1361			break;
1362		case 2:
1363			/* XXX compute */
1364			break;
1365		case 3:
1366			/* XXX page queue*/
1367			break;
1368		}
1369		break;
1370	case SOC15_IH_CLIENTID_SDMA1:
1371		switch (entry->ring_id) {
1372		case 0:
1373			amdgpu_fence_process(&adev->sdma.instance[1].ring);
1374			break;
1375		case 1:
1376			/* XXX compute */
1377			break;
1378		case 2:
1379			/* XXX compute */
1380			break;
1381		case 3:
1382			/* XXX page queue*/
1383			break;
1384		}
1385		break;
1386	}
1387	return 0;
1388}
1389
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1390static int sdma_v4_0_process_illegal_inst_irq(struct amdgpu_device *adev,
1391					      struct amdgpu_irq_src *source,
1392					      struct amdgpu_iv_entry *entry)
1393{
 
 
1394	DRM_ERROR("Illegal instruction in SDMA command stream\n");
1395	schedule_work(&adev->reset_work);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1396	return 0;
1397}
1398
 
 
 
 
 
 
 
 
 
1399
1400static void sdma_v4_0_update_medium_grain_clock_gating(
1401		struct amdgpu_device *adev,
1402		bool enable)
1403{
1404	uint32_t data, def;
 
1405
1406	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1407		/* enable sdma0 clock gating */
1408		def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL));
1409		data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1410			  SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1411			  SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1412			  SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1413			  SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1414			  SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1415			  SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1416			  SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1417		if (def != data)
1418			WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL), data);
1419
1420		if (adev->sdma.num_instances > 1) {
1421			def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL));
1422			data &= ~(SDMA1_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1423				  SDMA1_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1424				  SDMA1_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1425				  SDMA1_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1426				  SDMA1_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1427				  SDMA1_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1428				  SDMA1_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1429				  SDMA1_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1430			if (def != data)
1431				WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL), data);
1432		}
1433	} else {
1434		/* disable sdma0 clock gating */
1435		def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL));
1436		data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1437			 SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1438			 SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1439			 SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1440			 SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1441			 SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1442			 SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1443			 SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1444
1445		if (def != data)
1446			WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL), data);
1447
1448		if (adev->sdma.num_instances > 1) {
1449			def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL));
1450			data |= (SDMA1_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1451				 SDMA1_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1452				 SDMA1_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1453				 SDMA1_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1454				 SDMA1_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1455				 SDMA1_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1456				 SDMA1_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1457				 SDMA1_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1458			if (def != data)
1459				WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_CLK_CTRL), data);
1460		}
1461	}
1462}
1463
1464
1465static void sdma_v4_0_update_medium_grain_light_sleep(
1466		struct amdgpu_device *adev,
1467		bool enable)
1468{
1469	uint32_t data, def;
 
1470
1471	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1472		/* 1-not override: enable sdma0 mem light sleep */
1473		def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL));
1474		data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1475		if (def != data)
1476			WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data);
1477
1478		/* 1-not override: enable sdma1 mem light sleep */
1479		if (adev->sdma.num_instances > 1) {
1480			def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL));
1481			data |= SDMA1_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1482			if (def != data)
1483				WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL), data);
1484		}
1485	} else {
1486		/* 0-override:disable sdma0 mem light sleep */
1487		def = data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL));
1488		data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1489		if (def != data)
1490			WREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL), data);
1491
1492		/* 0-override:disable sdma1 mem light sleep */
1493		if (adev->sdma.num_instances > 1) {
1494			def = data = RREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL));
1495			data &= ~SDMA1_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1496			if (def != data)
1497				WREG32(SOC15_REG_OFFSET(SDMA1, 0, mmSDMA1_POWER_CNTL), data);
1498		}
1499	}
1500}
1501
1502static int sdma_v4_0_set_clockgating_state(void *handle,
1503					  enum amd_clockgating_state state)
1504{
1505	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1506
1507	if (amdgpu_sriov_vf(adev))
1508		return 0;
1509
1510	switch (adev->asic_type) {
1511	case CHIP_VEGA10:
1512	case CHIP_VEGA12:
1513	case CHIP_RAVEN:
1514		sdma_v4_0_update_medium_grain_clock_gating(adev,
1515				state == AMD_CG_STATE_GATE ? true : false);
1516		sdma_v4_0_update_medium_grain_light_sleep(adev,
1517				state == AMD_CG_STATE_GATE ? true : false);
1518		break;
1519	default:
1520		break;
1521	}
1522	return 0;
1523}
1524
1525static int sdma_v4_0_set_powergating_state(void *handle,
1526					  enum amd_powergating_state state)
1527{
1528	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1529
1530	switch (adev->asic_type) {
1531	case CHIP_RAVEN:
 
1532		sdma_v4_1_update_power_gating(adev,
1533				state == AMD_PG_STATE_GATE ? true : false);
1534		break;
1535	default:
1536		break;
1537	}
1538
1539	return 0;
1540}
1541
1542static void sdma_v4_0_get_clockgating_state(void *handle, u32 *flags)
1543{
1544	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1545	int data;
1546
1547	if (amdgpu_sriov_vf(adev))
1548		*flags = 0;
1549
1550	/* AMD_CG_SUPPORT_SDMA_MGCG */
1551	data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_CLK_CTRL));
1552	if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK))
1553		*flags |= AMD_CG_SUPPORT_SDMA_MGCG;
1554
1555	/* AMD_CG_SUPPORT_SDMA_LS */
1556	data = RREG32(SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_POWER_CNTL));
1557	if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1558		*flags |= AMD_CG_SUPPORT_SDMA_LS;
1559}
1560
1561const struct amd_ip_funcs sdma_v4_0_ip_funcs = {
1562	.name = "sdma_v4_0",
1563	.early_init = sdma_v4_0_early_init,
1564	.late_init = NULL,
1565	.sw_init = sdma_v4_0_sw_init,
1566	.sw_fini = sdma_v4_0_sw_fini,
1567	.hw_init = sdma_v4_0_hw_init,
1568	.hw_fini = sdma_v4_0_hw_fini,
1569	.suspend = sdma_v4_0_suspend,
1570	.resume = sdma_v4_0_resume,
1571	.is_idle = sdma_v4_0_is_idle,
1572	.wait_for_idle = sdma_v4_0_wait_for_idle,
1573	.soft_reset = sdma_v4_0_soft_reset,
1574	.set_clockgating_state = sdma_v4_0_set_clockgating_state,
1575	.set_powergating_state = sdma_v4_0_set_powergating_state,
1576	.get_clockgating_state = sdma_v4_0_get_clockgating_state,
1577};
1578
1579static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = {
1580	.type = AMDGPU_RING_TYPE_SDMA,
1581	.align_mask = 0xf,
1582	.nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1583	.support_64bit_ptrs = true,
1584	.vmhub = AMDGPU_MMHUB,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1585	.get_rptr = sdma_v4_0_ring_get_rptr,
1586	.get_wptr = sdma_v4_0_ring_get_wptr,
1587	.set_wptr = sdma_v4_0_ring_set_wptr,
1588	.emit_frame_size =
1589		6 + /* sdma_v4_0_ring_emit_hdp_flush */
1590		3 + /* hdp invalidate */
1591		6 + /* sdma_v4_0_ring_emit_pipeline_sync */
1592		/* sdma_v4_0_ring_emit_vm_flush */
1593		SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1594		SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1595		10 + 10 + 10, /* sdma_v4_0_ring_emit_fence x3 for user fence, vm fence */
1596	.emit_ib_size = 7 + 6, /* sdma_v4_0_ring_emit_ib */
1597	.emit_ib = sdma_v4_0_ring_emit_ib,
1598	.emit_fence = sdma_v4_0_ring_emit_fence,
1599	.emit_pipeline_sync = sdma_v4_0_ring_emit_pipeline_sync,
1600	.emit_vm_flush = sdma_v4_0_ring_emit_vm_flush,
1601	.emit_hdp_flush = sdma_v4_0_ring_emit_hdp_flush,
1602	.test_ring = sdma_v4_0_ring_test_ring,
1603	.test_ib = sdma_v4_0_ring_test_ib,
1604	.insert_nop = sdma_v4_0_ring_insert_nop,
1605	.pad_ib = sdma_v4_0_ring_pad_ib,
1606	.emit_wreg = sdma_v4_0_ring_emit_wreg,
1607	.emit_reg_wait = sdma_v4_0_ring_emit_reg_wait,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1608};
1609
1610static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev)
1611{
1612	int i;
1613
1614	for (i = 0; i < adev->sdma.num_instances; i++)
1615		adev->sdma.instance[i].ring.funcs = &sdma_v4_0_ring_funcs;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1616}
1617
1618static const struct amdgpu_irq_src_funcs sdma_v4_0_trap_irq_funcs = {
1619	.set = sdma_v4_0_set_trap_irq_state,
1620	.process = sdma_v4_0_process_trap_irq,
1621};
1622
1623static const struct amdgpu_irq_src_funcs sdma_v4_0_illegal_inst_irq_funcs = {
1624	.process = sdma_v4_0_process_illegal_inst_irq,
1625};
1626
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1627static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev)
1628{
1629	adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
 
 
 
 
 
 
 
 
 
 
 
 
 
1630	adev->sdma.trap_irq.funcs = &sdma_v4_0_trap_irq_funcs;
1631	adev->sdma.illegal_inst_irq.funcs = &sdma_v4_0_illegal_inst_irq_funcs;
 
 
 
 
 
1632}
1633
1634/**
1635 * sdma_v4_0_emit_copy_buffer - copy buffer using the sDMA engine
1636 *
1637 * @ring: amdgpu_ring structure holding ring information
1638 * @src_offset: src GPU address
1639 * @dst_offset: dst GPU address
1640 * @byte_count: number of bytes to xfer
 
1641 *
1642 * Copy GPU buffers using the DMA engine (VEGA10/12).
1643 * Used by the amdgpu ttm implementation to move pages if
1644 * registered as the asic copy callback.
1645 */
1646static void sdma_v4_0_emit_copy_buffer(struct amdgpu_ib *ib,
1647				       uint64_t src_offset,
1648				       uint64_t dst_offset,
1649				       uint32_t byte_count)
 
1650{
1651	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1652		SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
 
1653	ib->ptr[ib->length_dw++] = byte_count - 1;
1654	ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1655	ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1656	ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1657	ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1658	ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1659}
1660
1661/**
1662 * sdma_v4_0_emit_fill_buffer - fill buffer using the sDMA engine
1663 *
1664 * @ring: amdgpu_ring structure holding ring information
1665 * @src_data: value to write to buffer
1666 * @dst_offset: dst GPU address
1667 * @byte_count: number of bytes to xfer
1668 *
1669 * Fill GPU buffers using the DMA engine (VEGA10/12).
1670 */
1671static void sdma_v4_0_emit_fill_buffer(struct amdgpu_ib *ib,
1672				       uint32_t src_data,
1673				       uint64_t dst_offset,
1674				       uint32_t byte_count)
1675{
1676	ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1677	ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1678	ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1679	ib->ptr[ib->length_dw++] = src_data;
1680	ib->ptr[ib->length_dw++] = byte_count - 1;
1681}
1682
1683static const struct amdgpu_buffer_funcs sdma_v4_0_buffer_funcs = {
1684	.copy_max_bytes = 0x400000,
1685	.copy_num_dw = 7,
1686	.emit_copy_buffer = sdma_v4_0_emit_copy_buffer,
1687
1688	.fill_max_bytes = 0x400000,
1689	.fill_num_dw = 5,
1690	.emit_fill_buffer = sdma_v4_0_emit_fill_buffer,
1691};
1692
1693static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev)
1694{
1695	if (adev->mman.buffer_funcs == NULL) {
1696		adev->mman.buffer_funcs = &sdma_v4_0_buffer_funcs;
 
 
1697		adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1698	}
1699}
1700
1701static const struct amdgpu_vm_pte_funcs sdma_v4_0_vm_pte_funcs = {
1702	.copy_pte_num_dw = 7,
1703	.copy_pte = sdma_v4_0_vm_copy_pte,
1704
1705	.write_pte = sdma_v4_0_vm_write_pte,
1706	.set_pte_pde = sdma_v4_0_vm_set_pte_pde,
1707};
1708
1709static void sdma_v4_0_set_vm_pte_funcs(struct amdgpu_device *adev)
1710{
 
1711	unsigned i;
1712
1713	if (adev->vm_manager.vm_pte_funcs == NULL) {
1714		adev->vm_manager.vm_pte_funcs = &sdma_v4_0_vm_pte_funcs;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1715		for (i = 0; i < adev->sdma.num_instances; i++)
1716			adev->vm_manager.vm_pte_rings[i] =
1717				&adev->sdma.instance[i].ring;
 
 
 
 
 
 
 
 
1718
1719		adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances;
 
 
 
 
 
 
 
 
 
 
 
1720	}
1721}
1722
1723const struct amdgpu_ip_block_version sdma_v4_0_ip_block = {
1724	.type = AMD_IP_BLOCK_TYPE_SDMA,
1725	.major = 4,
1726	.minor = 0,
1727	.rev = 0,
1728	.funcs = &sdma_v4_0_ip_funcs,
1729};