drivers/gpu/drm/amd/amdgpu/nbif_v6_3_1.c - linux - Git at Google

 /*
  * Copyright 2023 Advanced Micro Devices, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  */
 #include "amdgpu.h"
 #include "amdgpu_atombios.h"
 #include "nbif_v6_3_1.h"

 #include "nbif/nbif_6_3_1_offset.h"
 #include "nbif/nbif_6_3_1_sh_mask.h"
 #include "pcie/pcie_6_1_0_offset.h"
 #include "pcie/pcie_6_1_0_sh_mask.h"
 #include <uapi/linux/kfd_ioctl.h>

 static void nbif_v6_3_1_remap_hdp_registers(struct amdgpu_device *adev)
 {
 	WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
 		adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
 	WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
 		adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
 }

 static u32 nbif_v6_3_1_get_rev_id(struct amdgpu_device *adev)
 {
 	u32 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0);

 	tmp &= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
 	tmp >>= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;

 	return tmp;
 }

 static void nbif_v6_3_1_mc_access_enable(struct amdgpu_device *adev, bool enable)
 {
 	if (enable)
 		WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN,
 			     BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK |
 			     BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
 	else
 		WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN, 0);
 }

 static u32 nbif_v6_3_1_get_memsize(struct amdgpu_device *adev)
 {
 	return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
 }

 static void nbif_v6_3_1_sdma_doorbell_range(struct amdgpu_device *adev,
 					    int instance, bool use_doorbell,
 					    int doorbell_index,
 					    int doorbell_size)
 {
 	if (instance == 0) {
 		u32 doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL);

 		if (use_doorbell) {
 			doorbell_range = REG_SET_FIELD(doorbell_range,
 						       GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
 						       S2A_DOORBELL_PORT2_ENABLE,
 						       0x1);
 			doorbell_range = REG_SET_FIELD(doorbell_range,
 						       GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
 						       S2A_DOORBELL_PORT2_AWID,
 						       0xe);
 			doorbell_range = REG_SET_FIELD(doorbell_range,
 						       GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
 						       S2A_DOORBELL_PORT2_RANGE_OFFSET,
 						       doorbell_index);
 			doorbell_range = REG_SET_FIELD(doorbell_range,
 						       GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
 						       S2A_DOORBELL_PORT2_RANGE_SIZE,
 						       doorbell_size);
 			doorbell_range = REG_SET_FIELD(doorbell_range,
 						       GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
 						       S2A_DOORBELL_PORT2_AWADDR_31_28_VALUE,
 						       0x3);
 		} else
 			doorbell_range = REG_SET_FIELD(doorbell_range,
 						       GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
 						       S2A_DOORBELL_PORT2_RANGE_SIZE,
 						       0);

 		WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL, doorbell_range);
 	}
 }

 static void nbif_v6_3_1_vcn_doorbell_range(struct amdgpu_device *adev,
 					   bool use_doorbell, int doorbell_index,
 					   int instance)
 {
 	u32 doorbell_range;

 	if (instance)
 		doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_5_CTRL);
 	else
 		doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL);

 	if (use_doorbell) {
 		doorbell_range = REG_SET_FIELD(doorbell_range,
 					       GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
 					       S2A_DOORBELL_PORT4_ENABLE,
 					       0x1);
 		doorbell_range = REG_SET_FIELD(doorbell_range,
 					       GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
 					       S2A_DOORBELL_PORT4_AWID,
 					       instance ? 0x7 : 0x4);
 		doorbell_range = REG_SET_FIELD(doorbell_range,
 					       GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
 					       S2A_DOORBELL_PORT4_RANGE_OFFSET,
 					       doorbell_index);
 		doorbell_range = REG_SET_FIELD(doorbell_range,
 					       GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
 					       S2A_DOORBELL_PORT4_RANGE_SIZE,
 					       8);
 		doorbell_range = REG_SET_FIELD(doorbell_range,
 					       GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
 					       S2A_DOORBELL_PORT4_AWADDR_31_28_VALUE,
 					       instance ? 0x7 : 0x4);
 	} else
 		doorbell_range = REG_SET_FIELD(doorbell_range,
 					       GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
 					       S2A_DOORBELL_PORT4_RANGE_SIZE,
 					       0);

 	if (instance)
 		WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_5_CTRL, doorbell_range);
 	else
 		WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL, doorbell_range);
 }

 static void nbif_v6_3_1_gc_doorbell_init(struct amdgpu_device *adev)
 {
 	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_0_CTRL, 0x30000007);
 	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_3_CTRL, 0x3000000d);
 }

 static void nbif_v6_3_1_enable_doorbell_aperture(struct amdgpu_device *adev,
 						 bool enable)
 {
 	WREG32_FIELD15_PREREG(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN,
 			BIF_DOORBELL_APER_EN, enable ? 1 : 0);
 }

 static void
 nbif_v6_3_1_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
 					      bool enable)
 {
 	u32 tmp = 0;

 	if (enable) {
 		tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 				    DOORBELL_SELFRING_GPA_APER_EN, 1) |
 		      REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 				    DOORBELL_SELFRING_GPA_APER_MODE, 1) |
 		      REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 				    DOORBELL_SELFRING_GPA_APER_SIZE, 0);

 		WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
 			     lower_32_bits(adev->doorbell.base));
 		WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
 			     upper_32_bits(adev->doorbell.base));
 	}

 	WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL, tmp);
 }

 static void nbif_v6_3_1_ih_doorbell_range(struct amdgpu_device *adev,
 					  bool use_doorbell, int doorbell_index)
 {
 	u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL);

 	if (use_doorbell) {
 		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 						  GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
 						  S2A_DOORBELL_PORT1_ENABLE,
 						  0x1);
 		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 						  GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
 						  S2A_DOORBELL_PORT1_AWID,
 						  0x0);
 		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 						  GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
 						  S2A_DOORBELL_PORT1_RANGE_OFFSET,
 						  doorbell_index);
 		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 						  GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
 						  S2A_DOORBELL_PORT1_RANGE_SIZE,
 						  2);
 		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 						  GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
 						  S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
 						  0x0);
 	} else
 		ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 						  GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
 						  S2A_DOORBELL_PORT1_RANGE_SIZE,
 						  0);

 	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL, ih_doorbell_range);
 }

 static void nbif_v6_3_1_ih_control(struct amdgpu_device *adev)
 {
 	u32 interrupt_cntl;

 	/* setup interrupt control */
 	WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL2, adev->dummy_page_addr >> 8);

 	interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL);
 	/*
 	 * BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
 	 * BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
 	 */
 	interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
 				       IH_DUMMY_RD_OVERRIDE, 0);

 	/* BIF_BX0_INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
 	interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
 				       IH_REQ_NONSNOOP_EN, 0);

 	WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL, interrupt_cntl);
 }

 static void
 nbif_v6_3_1_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 					     bool enable)
 {
 }

 static void
 nbif_v6_3_1_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 					    bool enable)
 {
 }

 static void
 nbif_v6_3_1_get_clockgating_state(struct amdgpu_device *adev,
 				  u64 *flags)
 {
 }

 static u32 nbif_v6_3_1_get_hdp_flush_req_offset(struct amdgpu_device *adev)
 {
 	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_REQ);
 }

 static u32 nbif_v6_3_1_get_hdp_flush_done_offset(struct amdgpu_device *adev)
 {
 	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_DONE);
 }

 static u32 nbif_v6_3_1_get_pcie_index_offset(struct amdgpu_device *adev)
 {
 	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_INDEX);
 }

 static u32 nbif_v6_3_1_get_pcie_data_offset(struct amdgpu_device *adev)
 {
 	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_DATA);
 }

 const struct nbio_hdp_flush_reg nbif_v6_3_1_hdp_flush_reg = {
 	.ref_and_mask_cp0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP0_MASK,
 	.ref_and_mask_cp1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP1_MASK,
 	.ref_and_mask_cp2 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP2_MASK,
 	.ref_and_mask_cp3 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP3_MASK,
 	.ref_and_mask_cp4 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP4_MASK,
 	.ref_and_mask_cp5 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP5_MASK,
 	.ref_and_mask_cp6 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP6_MASK,
 	.ref_and_mask_cp7 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP7_MASK,
 	.ref_and_mask_cp8 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP8_MASK,
 	.ref_and_mask_cp9 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP9_MASK,
 	.ref_and_mask_sdma0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
 	.ref_and_mask_sdma1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
 };

 static void nbif_v6_3_1_init_registers(struct amdgpu_device *adev)
 {
 	uint32_t data;

 	data = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2);
 	data &= ~RCC_DEV0_EPF2_STRAP2__STRAP_NO_SOFT_RESET_DEV0_F2_MASK;
 	WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2, data);
 }

 static u32 nbif_v6_3_1_get_rom_offset(struct amdgpu_device *adev)
 {
 	u32 data, rom_offset;

 	data = RREG32_SOC15(NBIO, 0, regREGS_ROM_OFFSET_CTRL);
 	rom_offset = REG_GET_FIELD(data, REGS_ROM_OFFSET_CTRL, ROM_OFFSET);

 	return rom_offset;
 }

 #ifdef CONFIG_PCIEASPM
 static void nbif_v6_3_1_program_ltr(struct amdgpu_device *adev)
 {
 	uint32_t def, data;
 	u16 devctl2;

 	def = RREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL);
 	data = 0x35EB;
 	data &= ~RCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK;
 	data &= ~RCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL__LTR_PRIV_RST_LTR_IN_DL_DOWN_MASK;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data);

 	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2);
 	data &= ~RCC_STRAP0_RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2, data);

 	pcie_capability_read_word(adev->pdev, PCI_EXP_DEVCTL2, &devctl2);

 	if (adev->pdev->ltr_path == (devctl2 & PCI_EXP_DEVCTL2_LTR_EN))
 		return;

 	if (adev->pdev->ltr_path)
 		pcie_capability_set_word(adev->pdev, PCI_EXP_DEVCTL2, PCI_EXP_DEVCTL2_LTR_EN);
 	else
 		pcie_capability_clear_word(adev->pdev, PCI_EXP_DEVCTL2, PCI_EXP_DEVCTL2_LTR_EN);
 }
 #endif

 static void nbif_v6_3_1_program_aspm(struct amdgpu_device *adev)
 {
 #ifdef CONFIG_PCIEASPM
 	uint32_t def, data;
 	u16 devctl2, ltr;

 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL);
 	data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
 	data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
 	data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL, data);

 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL7);
 	data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL7, data);

 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3);
 	data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3, data);

 	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3);
 	data &= ~RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK;
 	data &= ~RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data);

 	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5);
 	data &= ~RCC_STRAP0_RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data);

 	pcie_capability_read_word(adev->pdev, PCI_EXP_DEVCTL2, &devctl2);
 	data = def = devctl2;
 	data &= ~PCI_EXP_DEVCTL2_LTR_EN;
 	if (def != data)
 		pcie_capability_set_word(adev->pdev, PCI_EXP_DEVCTL2, (u16)data);

 	ltr = pci_find_ext_capability(adev->pdev, PCI_EXT_CAP_ID_LTR);

 	if (ltr) {
 		pci_write_config_dword(adev->pdev, ltr + PCI_LTR_MAX_SNOOP_LAT, 0x10011001);
 	}

 #if 0
 	/* regPSWUSP0_PCIE_LC_CNTL2 should be replace by PCIE_LC_CNTL2 or someone else ? */
 	def = data = RREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2);
 	data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK |
 		PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK;
 	data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2, data);
 #endif
 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL4);
 	data |= PCIE_LC_CNTL4__LC_L1_POWERDOWN_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL4, data);

 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL);
 	data |= PCIE_LC_RXRECOVER_RXSTANDBY_CNTL__LC_RX_L0S_STANDBY_EN_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL, data);

 	nbif_v6_3_1_program_ltr(adev);

 	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3);
 	data |= 0x5DE0 << RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT;
 	data |= 0x0010 << RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data);

 	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5);
 	data |= 0x0010 << RCC_STRAP0_RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT;
 	if (def != data)
 		WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data);

 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL);
 	data |= 0x0 << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT;
 	data |= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
 	data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL, data);

 	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3);
 	data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
 	if (def != data)
 		WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3, data);
 #endif
 }

 #define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)

 static void nbif_v6_3_1_set_reg_remap(struct amdgpu_device *adev)
 {
 	if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
 		adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
 		adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
 	} else {
 		adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0,
 			regBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
 		adev->rmmio_remap.bus_addr = 0;
 	}
 }

 const struct amdgpu_nbio_funcs nbif_v6_3_1_funcs = {
 	.get_hdp_flush_req_offset = nbif_v6_3_1_get_hdp_flush_req_offset,
 	.get_hdp_flush_done_offset = nbif_v6_3_1_get_hdp_flush_done_offset,
 	.get_pcie_index_offset = nbif_v6_3_1_get_pcie_index_offset,
 	.get_pcie_data_offset = nbif_v6_3_1_get_pcie_data_offset,
 	.get_rev_id = nbif_v6_3_1_get_rev_id,
 	.mc_access_enable = nbif_v6_3_1_mc_access_enable,
 	.get_memsize = nbif_v6_3_1_get_memsize,
 	.sdma_doorbell_range = nbif_v6_3_1_sdma_doorbell_range,
 	.vcn_doorbell_range = nbif_v6_3_1_vcn_doorbell_range,
 	.gc_doorbell_init = nbif_v6_3_1_gc_doorbell_init,
 	.enable_doorbell_aperture = nbif_v6_3_1_enable_doorbell_aperture,
 	.enable_doorbell_selfring_aperture = nbif_v6_3_1_enable_doorbell_selfring_aperture,
 	.ih_doorbell_range = nbif_v6_3_1_ih_doorbell_range,
 	.update_medium_grain_clock_gating = nbif_v6_3_1_update_medium_grain_clock_gating,
 	.update_medium_grain_light_sleep = nbif_v6_3_1_update_medium_grain_light_sleep,
 	.get_clockgating_state = nbif_v6_3_1_get_clockgating_state,
 	.ih_control = nbif_v6_3_1_ih_control,
 	.init_registers = nbif_v6_3_1_init_registers,
 	.remap_hdp_registers = nbif_v6_3_1_remap_hdp_registers,
 	.get_rom_offset = nbif_v6_3_1_get_rom_offset,
 	.program_aspm = nbif_v6_3_1_program_aspm,
 	.set_reg_remap = nbif_v6_3_1_set_reg_remap,
 };


 static void nbif_v6_3_1_sriov_ih_doorbell_range(struct amdgpu_device *adev,
 						bool use_doorbell, int doorbell_index)
 {
 }

 static void nbif_v6_3_1_sriov_sdma_doorbell_range(struct amdgpu_device *adev,
 						  int instance, bool use_doorbell,
 						  int doorbell_index,
 						  int doorbell_size)
 {
 }

 static void nbif_v6_3_1_sriov_vcn_doorbell_range(struct amdgpu_device *adev,
 						 bool use_doorbell,
 						 int doorbell_index, int instance)
 {
 }

 static void nbif_v6_3_1_sriov_gc_doorbell_init(struct amdgpu_device *adev)
 {
 }

 const struct amdgpu_nbio_funcs nbif_v6_3_1_sriov_funcs = {
 	.get_hdp_flush_req_offset = nbif_v6_3_1_get_hdp_flush_req_offset,
 	.get_hdp_flush_done_offset = nbif_v6_3_1_get_hdp_flush_done_offset,
 	.get_pcie_index_offset = nbif_v6_3_1_get_pcie_index_offset,
 	.get_pcie_data_offset = nbif_v6_3_1_get_pcie_data_offset,
 	.get_rev_id = nbif_v6_3_1_get_rev_id,
 	.mc_access_enable = nbif_v6_3_1_mc_access_enable,
 	.get_memsize = nbif_v6_3_1_get_memsize,
 	.sdma_doorbell_range = nbif_v6_3_1_sriov_sdma_doorbell_range,
 	.vcn_doorbell_range = nbif_v6_3_1_sriov_vcn_doorbell_range,
 	.gc_doorbell_init = nbif_v6_3_1_sriov_gc_doorbell_init,
 	.enable_doorbell_aperture = nbif_v6_3_1_enable_doorbell_aperture,
 	.enable_doorbell_selfring_aperture = nbif_v6_3_1_enable_doorbell_selfring_aperture,
 	.ih_doorbell_range = nbif_v6_3_1_sriov_ih_doorbell_range,
 	.update_medium_grain_clock_gating = nbif_v6_3_1_update_medium_grain_clock_gating,
 	.update_medium_grain_light_sleep = nbif_v6_3_1_update_medium_grain_light_sleep,
 	.get_clockgating_state = nbif_v6_3_1_get_clockgating_state,
 	.ih_control = nbif_v6_3_1_ih_control,
 	.init_registers = nbif_v6_3_1_init_registers,
 	.remap_hdp_registers = nbif_v6_3_1_remap_hdp_registers,
 	.get_rom_offset = nbif_v6_3_1_get_rom_offset,
 	.set_reg_remap = nbif_v6_3_1_set_reg_remap,
 };
	/*
	* Copyright 2023 Advanced Micro Devices, Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	*/
	#include "amdgpu.h"
	#include "amdgpu_atombios.h"
	#include "nbif_v6_3_1.h"

	#include "nbif/nbif_6_3_1_offset.h"
	#include "nbif/nbif_6_3_1_sh_mask.h"
	#include "pcie/pcie_6_1_0_offset.h"
	#include "pcie/pcie_6_1_0_sh_mask.h"
	#include <uapi/linux/kfd_ioctl.h>

	static void nbif_v6_3_1_remap_hdp_registers(struct amdgpu_device *adev)
	{
	WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
	adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
	WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
	adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
	}

	static u32 nbif_v6_3_1_get_rev_id(struct amdgpu_device *adev)
	{
	u32 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0);

	tmp &= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
	tmp >>= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;

	return tmp;
	}

	static void nbif_v6_3_1_mc_access_enable(struct amdgpu_device *adev, bool enable)
	{
	if (enable)
	WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN,
	BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK \|
	BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
	else
	WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN, 0);
	}

	static u32 nbif_v6_3_1_get_memsize(struct amdgpu_device *adev)
	{
	return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
	}

	static void nbif_v6_3_1_sdma_doorbell_range(struct amdgpu_device *adev,
	int instance, bool use_doorbell,
	int doorbell_index,
	int doorbell_size)
	{
	if (instance == 0) {
	u32 doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL);

	if (use_doorbell) {
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
	S2A_DOORBELL_PORT2_ENABLE,
	0x1);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
	S2A_DOORBELL_PORT2_AWID,
	0xe);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
	S2A_DOORBELL_PORT2_RANGE_OFFSET,
	doorbell_index);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
	S2A_DOORBELL_PORT2_RANGE_SIZE,
	doorbell_size);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
	S2A_DOORBELL_PORT2_AWADDR_31_28_VALUE,
	0x3);
	} else
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL,
	S2A_DOORBELL_PORT2_RANGE_SIZE,
	0);

	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_2_CTRL, doorbell_range);
	}
	}

	static void nbif_v6_3_1_vcn_doorbell_range(struct amdgpu_device *adev,
	bool use_doorbell, int doorbell_index,
	int instance)
	{
	u32 doorbell_range;

	if (instance)
	doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_5_CTRL);
	else
	doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL);

	if (use_doorbell) {
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
	S2A_DOORBELL_PORT4_ENABLE,
	0x1);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
	S2A_DOORBELL_PORT4_AWID,
	instance ? 0x7 : 0x4);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
	S2A_DOORBELL_PORT4_RANGE_OFFSET,
	doorbell_index);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
	S2A_DOORBELL_PORT4_RANGE_SIZE,
	8);
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
	S2A_DOORBELL_PORT4_AWADDR_31_28_VALUE,
	instance ? 0x7 : 0x4);
	} else
	doorbell_range = REG_SET_FIELD(doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL,
	S2A_DOORBELL_PORT4_RANGE_SIZE,
	0);

	if (instance)
	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_5_CTRL, doorbell_range);
	else
	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_4_CTRL, doorbell_range);
	}

	static void nbif_v6_3_1_gc_doorbell_init(struct amdgpu_device *adev)
	{
	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_0_CTRL, 0x30000007);
	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_3_CTRL, 0x3000000d);
	}

	static void nbif_v6_3_1_enable_doorbell_aperture(struct amdgpu_device *adev,
	bool enable)
	{
	WREG32_FIELD15_PREREG(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN,
	BIF_DOORBELL_APER_EN, enable ? 1 : 0);
	}

	static void
	nbif_v6_3_1_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
	bool enable)
	{
	u32 tmp = 0;

	if (enable) {
	tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
	DOORBELL_SELFRING_GPA_APER_EN, 1) \|
	REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
	DOORBELL_SELFRING_GPA_APER_MODE, 1) \|
	REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
	DOORBELL_SELFRING_GPA_APER_SIZE, 0);

	WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
	lower_32_bits(adev->doorbell.base));
	WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
	upper_32_bits(adev->doorbell.base));
	}

	WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL, tmp);
	}

	static void nbif_v6_3_1_ih_doorbell_range(struct amdgpu_device *adev,
	bool use_doorbell, int doorbell_index)
	{
	u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL);

	if (use_doorbell) {
	ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
	S2A_DOORBELL_PORT1_ENABLE,
	0x1);
	ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
	S2A_DOORBELL_PORT1_AWID,
	0x0);
	ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
	S2A_DOORBELL_PORT1_RANGE_OFFSET,
	doorbell_index);
	ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
	S2A_DOORBELL_PORT1_RANGE_SIZE,
	2);
	ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
	S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
	0x0);
	} else
	ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
	GDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL,
	S2A_DOORBELL_PORT1_RANGE_SIZE,
	0);

	WREG32_SOC15(NBIO, 0, regGDC_S2A0_S2A_DOORBELL_ENTRY_1_CTRL, ih_doorbell_range);
	}

	static void nbif_v6_3_1_ih_control(struct amdgpu_device *adev)
	{
	u32 interrupt_cntl;

	/* setup interrupt control */
	WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL2, adev->dummy_page_addr >> 8);

	interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL);
	/*
	* BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
	* BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
	*/
	interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
	IH_DUMMY_RD_OVERRIDE, 0);

	/* BIF_BX0_INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
	interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
	IH_REQ_NONSNOOP_EN, 0);

	WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL, interrupt_cntl);
	}

	static void
	nbif_v6_3_1_update_medium_grain_clock_gating(struct amdgpu_device *adev,
	bool enable)
	{
	}

	static void
	nbif_v6_3_1_update_medium_grain_light_sleep(struct amdgpu_device *adev,
	bool enable)
	{
	}

	static void
	nbif_v6_3_1_get_clockgating_state(struct amdgpu_device *adev,
	u64 *flags)
	{
	}

	static u32 nbif_v6_3_1_get_hdp_flush_req_offset(struct amdgpu_device *adev)
	{
	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_REQ);
	}

	static u32 nbif_v6_3_1_get_hdp_flush_done_offset(struct amdgpu_device *adev)
	{
	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_DONE);
	}

	static u32 nbif_v6_3_1_get_pcie_index_offset(struct amdgpu_device *adev)
	{
	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_INDEX);
	}

	static u32 nbif_v6_3_1_get_pcie_data_offset(struct amdgpu_device *adev)
	{
	return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_DATA);
	}

	const struct nbio_hdp_flush_reg nbif_v6_3_1_hdp_flush_reg = {
	.ref_and_mask_cp0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP0_MASK,
	.ref_and_mask_cp1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP1_MASK,
	.ref_and_mask_cp2 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP2_MASK,
	.ref_and_mask_cp3 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP3_MASK,
	.ref_and_mask_cp4 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP4_MASK,
	.ref_and_mask_cp5 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP5_MASK,
	.ref_and_mask_cp6 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP6_MASK,
	.ref_and_mask_cp7 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP7_MASK,
	.ref_and_mask_cp8 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP8_MASK,
	.ref_and_mask_cp9 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP9_MASK,
	.ref_and_mask_sdma0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
	.ref_and_mask_sdma1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
	};

	static void nbif_v6_3_1_init_registers(struct amdgpu_device *adev)
	{
	uint32_t data;

	data = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2);
	data &= ~RCC_DEV0_EPF2_STRAP2__STRAP_NO_SOFT_RESET_DEV0_F2_MASK;
	WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2, data);
	}

	static u32 nbif_v6_3_1_get_rom_offset(struct amdgpu_device *adev)
	{
	u32 data, rom_offset;

	data = RREG32_SOC15(NBIO, 0, regREGS_ROM_OFFSET_CTRL);
	rom_offset = REG_GET_FIELD(data, REGS_ROM_OFFSET_CTRL, ROM_OFFSET);

	return rom_offset;
	}

	#ifdef CONFIG_PCIEASPM
	static void nbif_v6_3_1_program_ltr(struct amdgpu_device *adev)
	{
	uint32_t def, data;
	u16 devctl2;

	def = RREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL);
	data = 0x35EB;
	data &= ~RCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK;
	data &= ~RCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL__LTR_PRIV_RST_LTR_IN_DL_DOWN_MASK;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data);

	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2);
	data &= ~RCC_STRAP0_RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2, data);

	pcie_capability_read_word(adev->pdev, PCI_EXP_DEVCTL2, &devctl2);

	if (adev->pdev->ltr_path == (devctl2 & PCI_EXP_DEVCTL2_LTR_EN))
	return;

	if (adev->pdev->ltr_path)
	pcie_capability_set_word(adev->pdev, PCI_EXP_DEVCTL2, PCI_EXP_DEVCTL2_LTR_EN);
	else
	pcie_capability_clear_word(adev->pdev, PCI_EXP_DEVCTL2, PCI_EXP_DEVCTL2_LTR_EN);
	}
	#endif

	static void nbif_v6_3_1_program_aspm(struct amdgpu_device *adev)
	{
	#ifdef CONFIG_PCIEASPM
	uint32_t def, data;
	u16 devctl2, ltr;

	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL);
	data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
	data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
	data \|= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL, data);

	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL7);
	data \|= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL7, data);

	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3);
	data \|= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3, data);

	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3);
	data &= ~RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK;
	data &= ~RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data);

	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5);
	data &= ~RCC_STRAP0_RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data);

	pcie_capability_read_word(adev->pdev, PCI_EXP_DEVCTL2, &devctl2);
	data = def = devctl2;
	data &= ~PCI_EXP_DEVCTL2_LTR_EN;
	if (def != data)
	pcie_capability_set_word(adev->pdev, PCI_EXP_DEVCTL2, (u16)data);

	ltr = pci_find_ext_capability(adev->pdev, PCI_EXT_CAP_ID_LTR);

	if (ltr) {
	pci_write_config_dword(adev->pdev, ltr + PCI_LTR_MAX_SNOOP_LAT, 0x10011001);
	}

	#if 0
	/* regPSWUSP0_PCIE_LC_CNTL2 should be replace by PCIE_LC_CNTL2 or someone else ? */
	def = data = RREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2);
	data \|= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK \|
	PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK;
	data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2, data);
	#endif
	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL4);
	data \|= PCIE_LC_CNTL4__LC_L1_POWERDOWN_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL4, data);

	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL);
	data \|= PCIE_LC_RXRECOVER_RXSTANDBY_CNTL__LC_RX_L0S_STANDBY_EN_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL, data);

	nbif_v6_3_1_program_ltr(adev);

	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3);
	data \|= 0x5DE0 << RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT;
	data \|= 0x0010 << RCC_STRAP0_RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data);

	def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5);
	data \|= 0x0010 << RCC_STRAP0_RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT;
	if (def != data)
	WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data);

	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL);
	data \|= 0x0 << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT;
	data \|= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
	data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL, data);

	def = data = RREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3);
	data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
	if (def != data)
	WREG32_SOC15(PCIE, 0, regPCIE_LC_CNTL3, data);
	#endif
	}

	#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)

	static void nbif_v6_3_1_set_reg_remap(struct amdgpu_device *adev)
	{
	if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
	adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
	adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
	} else {
	adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0,
	regBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
	adev->rmmio_remap.bus_addr = 0;
	}
	}

	const struct amdgpu_nbio_funcs nbif_v6_3_1_funcs = {
	.get_hdp_flush_req_offset = nbif_v6_3_1_get_hdp_flush_req_offset,
	.get_hdp_flush_done_offset = nbif_v6_3_1_get_hdp_flush_done_offset,
	.get_pcie_index_offset = nbif_v6_3_1_get_pcie_index_offset,
	.get_pcie_data_offset = nbif_v6_3_1_get_pcie_data_offset,
	.get_rev_id = nbif_v6_3_1_get_rev_id,
	.mc_access_enable = nbif_v6_3_1_mc_access_enable,
	.get_memsize = nbif_v6_3_1_get_memsize,
	.sdma_doorbell_range = nbif_v6_3_1_sdma_doorbell_range,
	.vcn_doorbell_range = nbif_v6_3_1_vcn_doorbell_range,
	.gc_doorbell_init = nbif_v6_3_1_gc_doorbell_init,
	.enable_doorbell_aperture = nbif_v6_3_1_enable_doorbell_aperture,
	.enable_doorbell_selfring_aperture = nbif_v6_3_1_enable_doorbell_selfring_aperture,
	.ih_doorbell_range = nbif_v6_3_1_ih_doorbell_range,
	.update_medium_grain_clock_gating = nbif_v6_3_1_update_medium_grain_clock_gating,
	.update_medium_grain_light_sleep = nbif_v6_3_1_update_medium_grain_light_sleep,
	.get_clockgating_state = nbif_v6_3_1_get_clockgating_state,
	.ih_control = nbif_v6_3_1_ih_control,
	.init_registers = nbif_v6_3_1_init_registers,
	.remap_hdp_registers = nbif_v6_3_1_remap_hdp_registers,
	.get_rom_offset = nbif_v6_3_1_get_rom_offset,
	.program_aspm = nbif_v6_3_1_program_aspm,
	.set_reg_remap = nbif_v6_3_1_set_reg_remap,
	};


	static void nbif_v6_3_1_sriov_ih_doorbell_range(struct amdgpu_device *adev,
	bool use_doorbell, int doorbell_index)
	{
	}

	static void nbif_v6_3_1_sriov_sdma_doorbell_range(struct amdgpu_device *adev,
	int instance, bool use_doorbell,
	int doorbell_index,
	int doorbell_size)
	{
	}

	static void nbif_v6_3_1_sriov_vcn_doorbell_range(struct amdgpu_device *adev,
	bool use_doorbell,
	int doorbell_index, int instance)
	{
	}

	static void nbif_v6_3_1_sriov_gc_doorbell_init(struct amdgpu_device *adev)
	{
	}

	const struct amdgpu_nbio_funcs nbif_v6_3_1_sriov_funcs = {
	.get_hdp_flush_req_offset = nbif_v6_3_1_get_hdp_flush_req_offset,
	.get_hdp_flush_done_offset = nbif_v6_3_1_get_hdp_flush_done_offset,
	.get_pcie_index_offset = nbif_v6_3_1_get_pcie_index_offset,
	.get_pcie_data_offset = nbif_v6_3_1_get_pcie_data_offset,
	.get_rev_id = nbif_v6_3_1_get_rev_id,
	.mc_access_enable = nbif_v6_3_1_mc_access_enable,
	.get_memsize = nbif_v6_3_1_get_memsize,
	.sdma_doorbell_range = nbif_v6_3_1_sriov_sdma_doorbell_range,
	.vcn_doorbell_range = nbif_v6_3_1_sriov_vcn_doorbell_range,
	.gc_doorbell_init = nbif_v6_3_1_sriov_gc_doorbell_init,
	.enable_doorbell_aperture = nbif_v6_3_1_enable_doorbell_aperture,
	.enable_doorbell_selfring_aperture = nbif_v6_3_1_enable_doorbell_selfring_aperture,
	.ih_doorbell_range = nbif_v6_3_1_sriov_ih_doorbell_range,
	.update_medium_grain_clock_gating = nbif_v6_3_1_update_medium_grain_clock_gating,
	.update_medium_grain_light_sleep = nbif_v6_3_1_update_medium_grain_light_sleep,
	.get_clockgating_state = nbif_v6_3_1_get_clockgating_state,
	.ih_control = nbif_v6_3_1_ih_control,
	.init_registers = nbif_v6_3_1_init_registers,
	.remap_hdp_registers = nbif_v6_3_1_remap_hdp_registers,
	.get_rom_offset = nbif_v6_3_1_get_rom_offset,
	.set_reg_remap = nbif_v6_3_1_set_reg_remap,
	};