Commit 770b93e9 authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: add gfxhub v2.0 block for navi10 (v4) 



gfxhub is the memory controller hub for gfx and sdma.

v1: add place holder and initial basic functions (Ray)
v2: replace the refernce to legacy mc structure with gmc structure
    remove the direct use of gart.table_addr (Hawking)
v3: switch to use amdgpu_gmc_pd_addr (Hawking)
v4: squash in updates (Alex)

Signed-off-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7f95167c

drivers/gpu/drm/amd/amdgpu/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -75,7 +75,8 @@ amdgpu-y += \ 
amdgpu-y += \

	gmc_v7_0.o \

	gmc_v8_0.o \

	gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o gfxhub_v1_1.o

	gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o gfxhub_v1_1.o \

	gfxhub_v2_0.o



# add IH block

amdgpu-y += \

drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c

0 → 100644
+352 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2019 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 "gfxhub_v2_0.h"



#include "gc/gc_10_1_0_offset.h"

#include "gc/gc_10_1_0_sh_mask.h"

#include "gc/gc_10_1_0_default.h"

#include "navi10_enum.h"



#include "soc15_common.h"



u64 gfxhub_v2_0_get_fb_location(struct amdgpu_device *adev)

{

	u64 base = RREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE);



	base &= GCMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;

	base <<= 24;



	return base;

}



u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev)

{

	return (u64)RREG32_SOC15(GC, 0, mmGCMC_VM_FB_OFFSET) << 24;

}



static void gfxhub_v2_0_init_gart_pt_regs(struct amdgpu_device *adev)

{

	uint64_t value = amdgpu_gmc_pd_addr(adev->gart.bo);





	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,

		     lower_32_bits(value));



	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,

		     upper_32_bits(value));

}



static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)

{

	gfxhub_v2_0_init_gart_pt_regs(adev);



	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,

		     (u32)(adev->gmc.gart_start >> 12));

	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,

		     (u32)(adev->gmc.gart_start >> 44));



	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,

		     (u32)(adev->gmc.gart_end >> 12));

	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,

		     (u32)(adev->gmc.gart_end >> 44));

}



static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)

{

	uint64_t value;



	/* Disable AGP. */

	WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);

	WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0);

	WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF);



	/* Program the system aperture low logical page number. */

	WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,

		     adev->gmc.vram_start >> 18);

	WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,

		     adev->gmc.vram_end >> 18);



	/* Set default page address. */

	value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start

		+ adev->vm_manager.vram_base_offset;

	WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,

		     (u32)(value >> 12));

	WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,

		     (u32)(value >> 44));



	/* Program "protection fault". */

	WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,

		     (u32)(adev->dummy_page_addr >> 12));

	WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,

		     (u32)((u64)adev->dummy_page_addr >> 44));



	WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,

		       ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);

}





static void gfxhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)

{

	uint32_t tmp;



	/* Setup TLB control */

	tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);



	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,

			    ENABLE_ADVANCED_DRIVER_MODEL, 1);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,

			    SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,

			    MTYPE, MTYPE_UC); /* UC, uncached */



	WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);

}



static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev)

{

	uint32_t tmp;



	/* Setup L2 cache */

	tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);



	/* XXX for emulation, Refer to closed source code.*/

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,

			    L2_PDE0_CACHE_TAG_GENERATION_MODE, 0);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 1);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL, tmp);



	tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2, tmp);



	tmp = mmGCVM_L2_CNTL3_DEFAULT;

	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp);



	tmp = mmGCVM_L2_CNTL4_DEFAULT;

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);

}



static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)

{

	uint32_t tmp;



	tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);

	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);

	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);

	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);

}



static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)

{

	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,

		     0xFFFFFFFF);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,

		     0x0000000F);



	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,

		     0);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,

		     0);



	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);



}



static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)

{

	int i;

	uint32_t tmp;



	for (i = 0; i <= 14; i++) {

		tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,

				    adev->vm_manager.num_level);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				PAGE_TABLE_BLOCK_SIZE,

				adev->vm_manager.block_size - 9);

		/* Send no-retry XNACK on fault to suppress VM fault storm. */

		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,

				    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i, tmp);

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,  i*2,

			lower_32_bits(adev->vm_manager.max_pfn - 1));

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,

			upper_32_bits(adev->vm_manager.max_pfn - 1));

	}

}



static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev)

{

	unsigned i;



	for (i = 0 ; i < 18; ++i) {

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,

				    2 * i, 0xffffffff);

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,

				    2 * i, 0x1f);

	}

}



int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev)

{

	if (amdgpu_sriov_vf(adev)) {

		/*

		 * GCMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are

		 * VF copy registers so vbios post doesn't program them, for

		 * SRIOV driver need to program them

		 */

		WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE,

			     adev->gmc.vram_start >> 24);

		WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_TOP,

			     adev->gmc.vram_end >> 24);

	}



	/* GART Enable. */

	gfxhub_v2_0_init_gart_aperture_regs(adev);

	gfxhub_v2_0_init_system_aperture_regs(adev);

	gfxhub_v2_0_init_tlb_regs(adev);

	gfxhub_v2_0_init_cache_regs(adev);



	gfxhub_v2_0_enable_system_domain(adev);

	gfxhub_v2_0_disable_identity_aperture(adev);

	gfxhub_v2_0_setup_vmid_config(adev);

	gfxhub_v2_0_program_invalidation(adev);



	return 0;

}



void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev)

{

	u32 tmp;

	u32 i;



	/* Disable all tables */

	for (i = 0; i < 16; i++)

		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL, i, 0);



	/* Setup TLB control */

	tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);

	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,

			    ENABLE_ADVANCED_DRIVER_MODEL, 0);

	WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);



	/* Setup L2 cache */

	WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);

	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);

}



/**

 * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling

 *

 * @adev: amdgpu_device pointer

 * @value: true redirects VM faults to the default page

 */

void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,

					  bool value)

{

	u32 tmp;

	tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,

			    value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

			    EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);

	if (!value) {

		tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

				CRASH_ON_NO_RETRY_FAULT, 1);

		tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,

				CRASH_ON_RETRY_FAULT, 1);

	}

	WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp);

}



void gfxhub_v2_0_init(struct amdgpu_device *adev)

{

	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB];



	hub->ctx0_ptb_addr_lo32 =

		SOC15_REG_OFFSET(GC, 0,

				 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);

	hub->ctx0_ptb_addr_hi32 =

		SOC15_REG_OFFSET(GC, 0,

				 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);

	hub->vm_inv_eng0_req =

		SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ);

	hub->vm_inv_eng0_ack =

		SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK);

	hub->vm_context0_cntl =

		SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL);

	hub->vm_l2_pro_fault_status =

		SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS);

	hub->vm_l2_pro_fault_cntl =

		SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);

}

drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.h

0 → 100644
+35 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2019 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.

 *

 */



#ifndef __GFXHUB_V2_0_H__

#define __GFXHUB_V2_0_H__



u64 gfxhub_v2_0_get_fb_location(struct amdgpu_device *adev);

int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev);

void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev);

void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,

					  bool value);

void gfxhub_v2_0_init(struct amdgpu_device *adev);

u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev);



#endif

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