On 03/23/2017 10:53 AM, Alex Deucher wrote:
> On Wed, Mar 22, 2017 at 10:42 PM, Zhang, Jerry (Junwei)
> <Jerry.Zhang at amd.com> wrote:
>> Hi Alex,
>>
>> I remember we had a patch to remove the FB location programming in
>> gmc/vmhub.
>> I saw it's not in gmc v9 in this patch, but pre-gmcv9 still program FB
>> register.
>>
>> Is that any missing for sync here?
>> Or it's only supported for gmc v9 now.
>
> I never landed the patches for older asics because I couldn't get vce
> to work properly with dal disabled without reprogramming the fb
> location.
Thanks, got the latest info.
Jerry
>
> Alex
>
>
>>
>> Jerry
>>
>> On 03/21/2017 04:29 AM, Alex Deucher wrote:
>>>
>>> From: Alex Xie <AlexBin.Xie at amd.com>
>>>
>>> On SOC-15 parts, the GMC (Graphics Memory Controller) consists
>>> of two hubs: GFX (graphics and compute) and MM (sdma, uvd, vce).
>>>
>>> Signed-off-by: Alex Xie <AlexBin.Xie at amd.com>
>>> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
>>> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
>>> ---
>>> drivers/gpu/drm/amd/amdgpu/Makefile | 6 +-
>>> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 30 ++
>>> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 28 +-
>>> drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 447 +++++++++++++++++
>>> drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h | 35 ++
>>> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 826
>>> +++++++++++++++++++++++++++++++
>>> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h | 30 ++
>>> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 585 ++++++++++++++++++++++
>>> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.h | 35 ++
>>> drivers/gpu/drm/amd/include/amd_shared.h | 2 +
>>> 10 files changed, 2016 insertions(+), 8 deletions(-)
>>> create mode 100644 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
>>> create mode 100644 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h
>>> create mode 100644 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>>> create mode 100644 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h
>>> create mode 100644 drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
>>> create mode 100644 drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.h
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile
>>> b/drivers/gpu/drm/amd/amdgpu/Makefile
>>> index 69823e8..b5046fd 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
>>> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
>>> @@ -45,7 +45,8 @@ amdgpu-y += \
>>> # add GMC block
>>> amdgpu-y += \
>>> gmc_v7_0.o \
>>> - gmc_v8_0.o
>>> + gmc_v8_0.o \
>>> + gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o
>>>
>>> # add IH block
>>> amdgpu-y += \
>>> @@ -74,7 +75,8 @@ amdgpu-y += \
>>> # add async DMA block
>>> amdgpu-y += \
>>> sdma_v2_4.o \
>>> - sdma_v3_0.o
>>> + sdma_v3_0.o \
>>> + sdma_v4_0.o
>>>
>>> # add UVD block
>>> amdgpu-y += \
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> index aaded8d..d7257b6 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>>> @@ -123,6 +123,11 @@ extern int amdgpu_param_buf_per_se;
>>> /* max number of IP instances */
>>> #define AMDGPU_MAX_SDMA_INSTANCES 2
>>>
>>> +/* max number of VMHUB */
>>> +#define AMDGPU_MAX_VMHUBS 2
>>> +#define AMDGPU_MMHUB 0
>>> +#define AMDGPU_GFXHUB 1
>>> +
>>> /* hardcode that limit for now */
>>> #define AMDGPU_VA_RESERVED_SIZE (8 << 20)
>>>
>>> @@ -310,6 +315,12 @@ struct amdgpu_gart_funcs {
>>> uint32_t flags);
>>> };
>>>
>>> +/* provided by the mc block */
>>> +struct amdgpu_mc_funcs {
>>> + /* adjust mc addr in fb for APU case */
>>> + u64 (*adjust_mc_addr)(struct amdgpu_device *adev, u64 addr);
>>> +};
>>> +
>>> /* provided by the ih block */
>>> struct amdgpu_ih_funcs {
>>> /* ring read/write ptr handling, called from interrupt context */
>>> @@ -559,6 +570,21 @@ int amdgpu_gart_bind(struct amdgpu_device *adev,
>>> uint64_t offset,
>>> int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
>>>
>>> /*
>>> + * VMHUB structures, functions & helpers
>>> + */
>>> +struct amdgpu_vmhub {
>>> + uint32_t ctx0_ptb_addr_lo32;
>>> + uint32_t ctx0_ptb_addr_hi32;
>>> + uint32_t vm_inv_eng0_req;
>>> + uint32_t vm_inv_eng0_ack;
>>> + uint32_t vm_context0_cntl;
>>> + uint32_t vm_l2_pro_fault_status;
>>> + uint32_t vm_l2_pro_fault_cntl;
>>> + uint32_t (*get_invalidate_req)(unsigned int vm_id);
>>> + uint32_t (*get_vm_protection_bits)(void);
>>> +};
>>> +
>>> +/*
>>> * GPU MC structures, functions & helpers
>>> */
>>> struct amdgpu_mc {
>>> @@ -591,6 +617,9 @@ struct amdgpu_mc {
>>> u64 shared_aperture_end;
>>> u64 private_aperture_start;
>>> u64 private_aperture_end;
>>> + /* protects concurrent invalidation */
>>> + spinlock_t invalidate_lock;
>>> + const struct amdgpu_mc_funcs *mc_funcs;
>>> };
>>>
>>> /*
>>> @@ -1479,6 +1508,7 @@ struct amdgpu_device {
>>> struct amdgpu_gart gart;
>>> struct amdgpu_dummy_page dummy_page;
>>> struct amdgpu_vm_manager vm_manager;
>>> + struct amdgpu_vmhub vmhub[AMDGPU_MAX_VMHUBS];
>>>
>>> /* memory management */
>>> struct amdgpu_mman mman;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>>> index df615d7..47a8080 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>>> @@ -375,6 +375,16 @@ static bool amdgpu_vm_ring_has_compute_vm_bug(struct
>>> amdgpu_ring *ring)
>>> return false;
>>> }
>>>
>>> +static u64 amdgpu_vm_adjust_mc_addr(struct amdgpu_device *adev, u64
>>> mc_addr)
>>> +{
>>> + u64 addr = mc_addr;
>>> +
>>> + if (adev->mc.mc_funcs && adev->mc.mc_funcs->adjust_mc_addr)
>>> + addr = adev->mc.mc_funcs->adjust_mc_addr(adev, addr);
>>> +
>>> + return addr;
>>> +}
>>> +
>>> /**
>>> * amdgpu_vm_flush - hardware flush the vm
>>> *
>>> @@ -405,9 +415,10 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct
>>> amdgpu_job *job)
>>> if (ring->funcs->emit_vm_flush && (job->vm_needs_flush ||
>>> amdgpu_vm_is_gpu_reset(adev, id))) {
>>> struct fence *fence;
>>> + u64 pd_addr = amdgpu_vm_adjust_mc_addr(adev,
>>> job->vm_pd_addr);
>>>
>>> - trace_amdgpu_vm_flush(job->vm_pd_addr, ring->idx,
>>> job->vm_id);
>>> - amdgpu_ring_emit_vm_flush(ring, job->vm_id,
>>> job->vm_pd_addr);
>>> + trace_amdgpu_vm_flush(pd_addr, ring->idx, job->vm_id);
>>> + amdgpu_ring_emit_vm_flush(ring, job->vm_id, pd_addr);
>>>
>>> r = amdgpu_fence_emit(ring, &fence);
>>> if (r)
>>> @@ -643,15 +654,18 @@ int amdgpu_vm_update_page_directory(struct
>>> amdgpu_device *adev,
>>> (count == AMDGPU_VM_MAX_UPDATE_SIZE)) {
>>>
>>> if (count) {
>>> + uint64_t pt_addr =
>>> + amdgpu_vm_adjust_mc_addr(adev,
>>> last_pt);
>>> +
>>> if (shadow)
>>> amdgpu_vm_do_set_ptes(¶ms,
>>> last_shadow,
>>> - last_pt,
>>> count,
>>> + pt_addr,
>>> count,
>>> incr,
>>>
>>> AMDGPU_PTE_VALID);
>>>
>>> amdgpu_vm_do_set_ptes(¶ms, last_pde,
>>> - last_pt, count,
>>> incr,
>>> + pt_addr, count,
>>> incr,
>>> AMDGPU_PTE_VALID);
>>> }
>>>
>>> @@ -665,11 +679,13 @@ int amdgpu_vm_update_page_directory(struct
>>> amdgpu_device *adev,
>>> }
>>>
>>> if (count) {
>>> + uint64_t pt_addr = amdgpu_vm_adjust_mc_addr(adev,
>>> last_pt);
>>> +
>>> if (vm->page_directory->shadow)
>>> - amdgpu_vm_do_set_ptes(¶ms, last_shadow,
>>> last_pt,
>>> + amdgpu_vm_do_set_ptes(¶ms, last_shadow,
>>> pt_addr,
>>> count, incr,
>>> AMDGPU_PTE_VALID);
>>>
>>> - amdgpu_vm_do_set_ptes(¶ms, last_pde, last_pt,
>>> + amdgpu_vm_do_set_ptes(¶ms, last_pde, pt_addr,
>>> count, incr, AMDGPU_PTE_VALID);
>>> }
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
>>> b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
>>> new file mode 100644
>>> index 0000000..1ff019c
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
>>> @@ -0,0 +1,447 @@
>>> +/*
>>> + * Copyright 2016 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_v1_0.h"
>>> +
>>> +#include "vega10/soc15ip.h"
>>> +#include "vega10/GC/gc_9_0_offset.h"
>>> +#include "vega10/GC/gc_9_0_sh_mask.h"
>>> +#include "vega10/GC/gc_9_0_default.h"
>>> +#include "vega10/vega10_enum.h"
>>> +
>>> +#include "soc15_common.h"
>>> +
>>> +int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
>>> +{
>>> + u32 tmp;
>>> + u64 value;
>>> + u32 i;
>>> +
>>> + /* Program MC. */
>>> + /* Update configuration */
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR),
>>> + adev->mc.vram_start >> 18);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR),
>>> + adev->mc.vram_end >> 18);
>>> +
>>> + value = adev->vram_scratch.gpu_addr - adev->mc.vram_start
>>> + + adev->vm_manager.vram_base_offset;
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB),
>>> + (u32)(value >> 12));
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB),
>>> + (u32)(value >> 44));
>>> +
>>> + /* Disable AGP. */
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_AGP_BASE), 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_AGP_TOP), 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_AGP_BOT), 0xFFFFFFFF);
>>> +
>>> + /* GART Enable. */
>>> +
>>> + /* Setup TLB control */
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_MX_L1_TLB_CNTL));
>>> + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + SYSTEM_ACCESS_MODE,
>>> + 3);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + ENABLE_ADVANCED_DRIVER_MODEL,
>>> + 1);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + SYSTEM_APERTURE_UNMAPPED_ACCESS,
>>> + 0);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + ECO_BITS,
>>> + 0);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + MTYPE,
>>> + MTYPE_UC);/* XXX for emulation. */
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + ATC_EN,
>>> + 1);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_MX_L1_TLB_CNTL), tmp);
>>> +
>>> + /* Setup L2 cache */
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL));
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_CNTL,
>>> + ENABLE_L2_FRAGMENT_PROCESSING,
>>> + 0);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_CNTL,
>>> + L2_PDE0_CACHE_TAG_GENERATION_MODE,
>>> + 0);/* XXX for emulation, Refer to closed
>>> source code.*/
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 1);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_CNTL,
>>> + CONTEXT1_IDENTITY_ACCESS_MODE,
>>> + 1);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_CNTL,
>>> + IDENTITY_MODE_FRAGMENT_SIZE,
>>> + 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL), tmp);
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL2));
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL2), tmp);
>>> +
>>> + tmp = mmVM_L2_CNTL3_DEFAULT;
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL3), tmp);
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL4));
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_CNTL4,
>>> + VMC_TAP_PDE_REQUEST_PHYSICAL,
>>> + 0);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_CNTL4,
>>> + VMC_TAP_PTE_REQUEST_PHYSICAL,
>>> + 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL4), tmp);
>>> +
>>> + /* setup context0 */
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32),
>>> + (u32)(adev->mc.gtt_start >> 12));
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32),
>>> + (u32)(adev->mc.gtt_start >> 44));
>>> +
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32),
>>> + (u32)(adev->mc.gtt_end >> 12));
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32),
>>> + (u32)(adev->mc.gtt_end >> 44));
>>> +
>>> + BUG_ON(adev->gart.table_addr & (~0x0000FFFFFFFFF000ULL));
>>> + value = adev->gart.table_addr - adev->mc.vram_start
>>> + + adev->vm_manager.vram_base_offset;
>>> + value &= 0x0000FFFFFFFFF000ULL;
>>> + value |= 0x1; /*valid bit*/
>>> +
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32),
>>> + (u32)value);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32),
>>> + (u32)(value >> 32));
>>> +
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> +
>>> mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32),
>>> + (u32)(adev->dummy_page.addr >> 12));
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> +
>>> mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32),
>>> + (u32)(adev->dummy_page.addr >> 44));
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0,
>>> mmVM_L2_PROTECTION_FAULT_CNTL2));
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL2,
>>> + ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY,
>>> + 1);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL2),
>>> tmp);
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL));
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL), tmp);
>>> +
>>> + /* Disable identity aperture.*/
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32),
>>> 0XFFFFFFFF);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32),
>>> 0x0000000F);
>>> +
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32), 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32), 0);
>>> +
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32), 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32), 0);
>>> +
>>> + for (i = 0; i <= 14; i++) {
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL) +
>>> i);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT,
>>> 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> PAGE_TABLE_DEPTH, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> +
>>> DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT,
>>> 1);
>>> + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
>>> + PAGE_TABLE_BLOCK_SIZE,
>>> + amdgpu_vm_block_size - 9);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL) + i,
>>> tmp);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32) + i*2, 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32) + i*2, 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32) + i*2,
>>> + adev->vm_manager.max_pfn - 1);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32) + i*2, 0);
>>> + }
>>> +
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +void gfxhub_v1_0_gart_disable(struct amdgpu_device *adev)
>>> +{
>>> + u32 tmp;
>>> + u32 i;
>>> +
>>> + /* Disable all tables */
>>> + for (i = 0; i < 16; i++)
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL) + i,
>>> 0);
>>> +
>>> + /* Setup TLB control */
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_MX_L1_TLB_CNTL));
>>> + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + MC_VM_MX_L1_TLB_CNTL,
>>> + ENABLE_ADVANCED_DRIVER_MODEL,
>>> + 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_MX_L1_TLB_CNTL), tmp);
>>> +
>>> + /* Setup L2 cache */
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL));
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL), tmp);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_CNTL3), 0);
>>> +}
>>> +
>>> +/**
>>> + * gfxhub_v1_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_v1_0_set_fault_enable_default(struct amdgpu_device *adev,
>>> + bool value)
>>> +{
>>> + u32 tmp;
>>> + tmp = RREG32(SOC15_REG_OFFSET(GC, 0,
>>> mmVM_L2_PROTECTION_FAULT_CNTL));
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp,
>>> + VM_L2_PROTECTION_FAULT_CNTL,
>>> + TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
>>> + value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
>>> value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
>>> + EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL),
>>> tmp);
>>> +}
>>> +
>>> +static uint32_t gfxhub_v1_0_get_invalidate_req(unsigned int vm_id)
>>> +{
>>> + u32 req = 0;
>>> +
>>> + /* invalidate using legacy mode on vm_id*/
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> + PER_VMID_INVALIDATE_REQ, 1 << vm_id);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, 0);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> INVALIDATE_L2_PTES, 1);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> INVALIDATE_L2_PDE0, 1);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> INVALIDATE_L2_PDE1, 1);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> INVALIDATE_L2_PDE2, 1);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> INVALIDATE_L1_PTES, 1);
>>> + req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
>>> + CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
>>> +
>>> + return req;
>>> +}
>>> +
>>> +static uint32_t gfxhub_v1_0_get_vm_protection_bits(void)
>>> +{
>>> + return
>>> (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
>>> +
>>> VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
>>> +
>>> VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
>>> +
>>> VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
>>> +
>>> VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
>>> +
>>> VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
>>> +
>>> VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
>>> +}
>>> +
>>> +static int gfxhub_v1_0_early_init(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_late_init(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_sw_init(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> + struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB];
>>> +
>>> + hub->ctx0_ptb_addr_lo32 =
>>> + SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
>>> + hub->ctx0_ptb_addr_hi32 =
>>> + SOC15_REG_OFFSET(GC, 0,
>>> + mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
>>> + hub->vm_inv_eng0_req =
>>> + SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_REQ);
>>> + hub->vm_inv_eng0_ack =
>>> + SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ACK);
>>> + hub->vm_context0_cntl =
>>> + SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL);
>>> + hub->vm_l2_pro_fault_status =
>>> + SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_STATUS);
>>> + hub->vm_l2_pro_fault_cntl =
>>> + SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
>>> +
>>> + hub->get_invalidate_req = gfxhub_v1_0_get_invalidate_req;
>>> + hub->get_vm_protection_bits = gfxhub_v1_0_get_vm_protection_bits;
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_sw_fini(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_hw_init(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> + unsigned i;
>>> +
>>> + for (i = 0 ; i < 18; ++i) {
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> +
>>> mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32) +
>>> + 2 * i, 0xffffffff);
>>> + WREG32(SOC15_REG_OFFSET(GC, 0,
>>> +
>>> mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32) +
>>> + 2 * i, 0x1f);
>>> + }
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_hw_fini(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_suspend(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_resume(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static bool gfxhub_v1_0_is_idle(void *handle)
>>> +{
>>> + return true;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_wait_for_idle(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_soft_reset(void *handle)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_set_clockgating_state(void *handle,
>>> + enum amd_clockgating_state
>>> state)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gfxhub_v1_0_set_powergating_state(void *handle,
>>> + enum amd_powergating_state
>>> state)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +const struct amd_ip_funcs gfxhub_v1_0_ip_funcs = {
>>> + .name = "gfxhub_v1_0",
>>> + .early_init = gfxhub_v1_0_early_init,
>>> + .late_init = gfxhub_v1_0_late_init,
>>> + .sw_init = gfxhub_v1_0_sw_init,
>>> + .sw_fini = gfxhub_v1_0_sw_fini,
>>> + .hw_init = gfxhub_v1_0_hw_init,
>>> + .hw_fini = gfxhub_v1_0_hw_fini,
>>> + .suspend = gfxhub_v1_0_suspend,
>>> + .resume = gfxhub_v1_0_resume,
>>> + .is_idle = gfxhub_v1_0_is_idle,
>>> + .wait_for_idle = gfxhub_v1_0_wait_for_idle,
>>> + .soft_reset = gfxhub_v1_0_soft_reset,
>>> + .set_clockgating_state = gfxhub_v1_0_set_clockgating_state,
>>> + .set_powergating_state = gfxhub_v1_0_set_powergating_state,
>>> +};
>>> +
>>> +const struct amdgpu_ip_block_version gfxhub_v1_0_ip_block =
>>> +{
>>> + .type = AMD_IP_BLOCK_TYPE_GFXHUB,
>>> + .major = 1,
>>> + .minor = 0,
>>> + .rev = 0,
>>> + .funcs = &gfxhub_v1_0_ip_funcs,
>>> +};
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h
>>> b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h
>>> new file mode 100644
>>> index 0000000..5129a8f
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.h
>>> @@ -0,0 +1,35 @@
>>> +/*
>>> + * Copyright 2016 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_V1_0_H__
>>> +#define __GFXHUB_V1_0_H__
>>> +
>>> +int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev);
>>> +void gfxhub_v1_0_gart_disable(struct amdgpu_device *adev);
>>> +void gfxhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev,
>>> + bool value);
>>> +
>>> +extern const struct amd_ip_funcs gfxhub_v1_0_ip_funcs;
>>> +extern const struct amdgpu_ip_block_version gfxhub_v1_0_ip_block;
>>> +
>>> +#endif
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>>> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>>> new file mode 100644
>>> index 0000000..5cf0fc3
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>>> @@ -0,0 +1,826 @@
>>> +/*
>>> + * Copyright 2016 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 <linux/firmware.h>
>>> +#include "amdgpu.h"
>>> +#include "gmc_v9_0.h"
>>> +
>>> +#include "vega10/soc15ip.h"
>>> +#include "vega10/HDP/hdp_4_0_offset.h"
>>> +#include "vega10/HDP/hdp_4_0_sh_mask.h"
>>> +#include "vega10/GC/gc_9_0_sh_mask.h"
>>> +#include "vega10/vega10_enum.h"
>>> +
>>> +#include "soc15_common.h"
>>> +
>>> +#include "nbio_v6_1.h"
>>> +#include "gfxhub_v1_0.h"
>>> +#include "mmhub_v1_0.h"
>>> +
>>> +#define mmDF_CS_AON0_DramBaseAddress0
>>> 0x0044
>>> +#define mmDF_CS_AON0_DramBaseAddress0_BASE_IDX
>>> 0
>>> +//DF_CS_AON0_DramBaseAddress0
>>> +#define DF_CS_AON0_DramBaseAddress0__AddrRngVal__SHIFT
>>> 0x0
>>> +#define DF_CS_AON0_DramBaseAddress0__LgcyMmioHoleEn__SHIFT
>>> 0x1
>>> +#define DF_CS_AON0_DramBaseAddress0__IntLvNumChan__SHIFT
>>> 0x4
>>> +#define DF_CS_AON0_DramBaseAddress0__IntLvAddrSel__SHIFT
>>> 0x8
>>> +#define DF_CS_AON0_DramBaseAddress0__DramBaseAddr__SHIFT
>>> 0xc
>>> +#define DF_CS_AON0_DramBaseAddress0__AddrRngVal_MASK
>>> 0x00000001L
>>> +#define DF_CS_AON0_DramBaseAddress0__LgcyMmioHoleEn_MASK
>>> 0x00000002L
>>> +#define DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK
>>> 0x000000F0L
>>> +#define DF_CS_AON0_DramBaseAddress0__IntLvAddrSel_MASK
>>> 0x00000700L
>>> +#define DF_CS_AON0_DramBaseAddress0__DramBaseAddr_MASK
>>> 0xFFFFF000L
>>> +
>>> +/* XXX Move this macro to VEGA10 header file, which is like vid.h for
>>> VI.*/
>>> +#define AMDGPU_NUM_OF_VMIDS 8
>>> +
>>> +static const u32 golden_settings_vega10_hdp[] =
>>> +{
>>> + 0xf64, 0x0fffffff, 0x00000000,
>>> + 0xf65, 0x0fffffff, 0x00000000,
>>> + 0xf66, 0x0fffffff, 0x00000000,
>>> + 0xf67, 0x0fffffff, 0x00000000,
>>> + 0xf68, 0x0fffffff, 0x00000000,
>>> + 0xf6a, 0x0fffffff, 0x00000000,
>>> + 0xf6b, 0x0fffffff, 0x00000000,
>>> + 0xf6c, 0x0fffffff, 0x00000000,
>>> + 0xf6d, 0x0fffffff, 0x00000000,
>>> + 0xf6e, 0x0fffffff, 0x00000000,
>>> +};
>>> +
>>> +static int gmc_v9_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
>>> + struct amdgpu_irq_src *src,
>>> + unsigned type,
>>> + enum amdgpu_interrupt_state state)
>>> +{
>>> + struct amdgpu_vmhub *hub;
>>> + u32 tmp, reg, bits, i;
>>> +
>>> + switch (state) {
>>> + case AMDGPU_IRQ_STATE_DISABLE:
>>> + /* MM HUB */
>>> + hub = &adev->vmhub[AMDGPU_MMHUB];
>>> + bits = hub->get_vm_protection_bits();
>>> + for (i = 0; i< 16; i++) {
>>> + reg = hub->vm_context0_cntl + i;
>>> + tmp = RREG32(reg);
>>> + tmp &= ~bits;
>>> + WREG32(reg, tmp);
>>> + }
>>> +
>>> + /* GFX HUB */
>>> + hub = &adev->vmhub[AMDGPU_GFXHUB];
>>> + bits = hub->get_vm_protection_bits();
>>> + for (i = 0; i < 16; i++) {
>>> + reg = hub->vm_context0_cntl + i;
>>> + tmp = RREG32(reg);
>>> + tmp &= ~bits;
>>> + WREG32(reg, tmp);
>>> + }
>>> + break;
>>> + case AMDGPU_IRQ_STATE_ENABLE:
>>> + /* MM HUB */
>>> + hub = &adev->vmhub[AMDGPU_MMHUB];
>>> + bits = hub->get_vm_protection_bits();
>>> + for (i = 0; i< 16; i++) {
>>> + reg = hub->vm_context0_cntl + i;
>>> + tmp = RREG32(reg);
>>> + tmp |= bits;
>>> + WREG32(reg, tmp);
>>> + }
>>> +
>>> + /* GFX HUB */
>>> + hub = &adev->vmhub[AMDGPU_GFXHUB];
>>> + bits = hub->get_vm_protection_bits();
>>> + for (i = 0; i < 16; i++) {
>>> + reg = hub->vm_context0_cntl + i;
>>> + tmp = RREG32(reg);
>>> + tmp |= bits;
>>> + WREG32(reg, tmp);
>>> + }
>>> + break;
>>> + default:
>>> + break;
>>> + }
>>> +
>>> + return 0;
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
>>> + struct amdgpu_irq_src *source,
>>> + struct amdgpu_iv_entry *entry)
>>> +{
>>> + struct amdgpu_vmhub *gfxhub = &adev->vmhub[AMDGPU_GFXHUB];
>>> + struct amdgpu_vmhub *mmhub = &adev->vmhub[AMDGPU_MMHUB];
>>> + uint32_t status;
>>> + u64 addr;
>>> +
>>> + addr = (u64)entry->src_data[0] << 12;
>>> + addr |= ((u64)entry->src_data[1] & 0xf) << 44;
>>> +
>>> + if (entry->vm_id_src) {
>>> + status = RREG32(mmhub->vm_l2_pro_fault_status);
>>> + WREG32_P(mmhub->vm_l2_pro_fault_cntl, 1, ~1);
>>> + } else {
>>> + status = RREG32(gfxhub->vm_l2_pro_fault_status);
>>> + WREG32_P(gfxhub->vm_l2_pro_fault_cntl, 1, ~1);
>>> + }
>>> +
>>> + DRM_ERROR("[%s]VMC page fault (src_id:%u ring:%u vm_id:%u
>>> pas_id:%u) "
>>> + "at page 0x%016llx from %d\n"
>>> + "VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
>>> + entry->vm_id_src ? "mmhub" : "gfxhub",
>>> + entry->src_id, entry->ring_id, entry->vm_id,
>>> entry->pas_id,
>>> + addr, entry->client_id, status);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static const struct amdgpu_irq_src_funcs gmc_v9_0_irq_funcs = {
>>> + .set = gmc_v9_0_vm_fault_interrupt_state,
>>> + .process = gmc_v9_0_process_interrupt,
>>> +};
>>> +
>>> +static void gmc_v9_0_set_irq_funcs(struct amdgpu_device *adev)
>>> +{
>>> + adev->mc.vm_fault.num_types = 1;
>>> + adev->mc.vm_fault.funcs = &gmc_v9_0_irq_funcs;
>>> +}
>>> +
>>> +/*
>>> + * GART
>>> + * VMID 0 is the physical GPU addresses as used by the kernel.
>>> + * VMIDs 1-15 are used for userspace clients and are handled
>>> + * by the amdgpu vm/hsa code.
>>> + */
>>> +
>>> +/**
>>> + * gmc_v9_0_gart_flush_gpu_tlb - gart tlb flush callback
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + * @vmid: vm instance to flush
>>> + *
>>> + * Flush the TLB for the requested page table.
>>> + */
>>> +static void gmc_v9_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
>>> + uint32_t vmid)
>>> +{
>>> + /* Use register 17 for GART */
>>> + const unsigned eng = 17;
>>> + unsigned i, j;
>>> +
>>> + /* flush hdp cache */
>>> + nbio_v6_1_hdp_flush(adev);
>>> +
>>> + spin_lock(&adev->mc.invalidate_lock);
>>> +
>>> + for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
>>> + struct amdgpu_vmhub *hub = &adev->vmhub[i];
>>> + u32 tmp = hub->get_invalidate_req(vmid);
>>> +
>>> + WREG32(hub->vm_inv_eng0_req + eng, tmp);
>>> +
>>> + /* Busy wait for ACK.*/
>>> + for (j = 0; j < 100; j++) {
>>> + tmp = RREG32(hub->vm_inv_eng0_ack + eng);
>>> + tmp &= 1 << vmid;
>>> + if (tmp)
>>> + break;
>>> + cpu_relax();
>>> + }
>>> + if (j < 100)
>>> + continue;
>>> +
>>> + /* Wait for ACK with a delay.*/
>>> + for (j = 0; j < adev->usec_timeout; j++) {
>>> + tmp = RREG32(hub->vm_inv_eng0_ack + eng);
>>> + tmp &= 1 << vmid;
>>> + if (tmp)
>>> + break;
>>> + udelay(1);
>>> + }
>>> + if (j < adev->usec_timeout)
>>> + continue;
>>> +
>>> + DRM_ERROR("Timeout waiting for VM flush ACK!\n");
>>> + }
>>> +
>>> + spin_unlock(&adev->mc.invalidate_lock);
>>> +}
>>> +
>>> +/**
>>> + * gmc_v9_0_gart_set_pte_pde - update the page tables using MMIO
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + * @cpu_pt_addr: cpu address of the page table
>>> + * @gpu_page_idx: entry in the page table to update
>>> + * @addr: dst addr to write into pte/pde
>>> + * @flags: access flags
>>> + *
>>> + * Update the page tables using the CPU.
>>> + */
>>> +static int gmc_v9_0_gart_set_pte_pde(struct amdgpu_device *adev,
>>> + void *cpu_pt_addr,
>>> + uint32_t gpu_page_idx,
>>> + uint64_t addr,
>>> + uint64_t flags)
>>> +{
>>> + void __iomem *ptr = (void *)cpu_pt_addr;
>>> + uint64_t value;
>>> +
>>> + /*
>>> + * PTE format on VEGA 10:
>>> + * 63:59 reserved
>>> + * 58:57 mtype
>>> + * 56 F
>>> + * 55 L
>>> + * 54 P
>>> + * 53 SW
>>> + * 52 T
>>> + * 50:48 reserved
>>> + * 47:12 4k physical page base address
>>> + * 11:7 fragment
>>> + * 6 write
>>> + * 5 read
>>> + * 4 exe
>>> + * 3 Z
>>> + * 2 snooped
>>> + * 1 system
>>> + * 0 valid
>>> + *
>>> + * PDE format on VEGA 10:
>>> + * 63:59 block fragment size
>>> + * 58:55 reserved
>>> + * 54 P
>>> + * 53:48 reserved
>>> + * 47:6 physical base address of PD or PTE
>>> + * 5:3 reserved
>>> + * 2 C
>>> + * 1 system
>>> + * 0 valid
>>> + */
>>> +
>>> + /*
>>> + * The following is for PTE only. GART does not have PDEs.
>>> + */
>>> + value = addr & 0x0000FFFFFFFFF000ULL;
>>> + value |= flags;
>>> + writeq(value, ptr + (gpu_page_idx * 8));
>>> + return 0;
>>> +}
>>> +
>>> +static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
>>> + uint32_t flags)
>>> +
>>> +{
>>> + uint64_t pte_flag = 0;
>>> +
>>> + if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
>>> + pte_flag |= AMDGPU_PTE_EXECUTABLE;
>>> + if (flags & AMDGPU_VM_PAGE_READABLE)
>>> + pte_flag |= AMDGPU_PTE_READABLE;
>>> + if (flags & AMDGPU_VM_PAGE_WRITEABLE)
>>> + pte_flag |= AMDGPU_PTE_WRITEABLE;
>>> +
>>> + switch (flags & AMDGPU_VM_MTYPE_MASK) {
>>> + case AMDGPU_VM_MTYPE_DEFAULT:
>>> + pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
>>> + break;
>>> + case AMDGPU_VM_MTYPE_NC:
>>> + pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
>>> + break;
>>> + case AMDGPU_VM_MTYPE_WC:
>>> + pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_WC);
>>> + break;
>>> + case AMDGPU_VM_MTYPE_CC:
>>> + pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_CC);
>>> + break;
>>> + case AMDGPU_VM_MTYPE_UC:
>>> + pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_UC);
>>> + break;
>>> + default:
>>> + pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
>>> + break;
>>> + }
>>> +
>>> + if (flags & AMDGPU_VM_PAGE_PRT)
>>> + pte_flag |= AMDGPU_PTE_PRT;
>>> +
>>> + return pte_flag;
>>> +}
>>> +
>>> +static const struct amdgpu_gart_funcs gmc_v9_0_gart_funcs = {
>>> + .flush_gpu_tlb = gmc_v9_0_gart_flush_gpu_tlb,
>>> + .set_pte_pde = gmc_v9_0_gart_set_pte_pde,
>>> + .get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags
>>> +};
>>> +
>>> +static void gmc_v9_0_set_gart_funcs(struct amdgpu_device *adev)
>>> +{
>>> + if (adev->gart.gart_funcs == NULL)
>>> + adev->gart.gart_funcs = &gmc_v9_0_gart_funcs;
>>> +}
>>> +
>>> +static u64 gmc_v9_0_adjust_mc_addr(struct amdgpu_device *adev, u64
>>> mc_addr)
>>> +{
>>> + return adev->vm_manager.vram_base_offset + mc_addr -
>>> adev->mc.vram_start;
>>> +}
>>> +
>>> +static const struct amdgpu_mc_funcs gmc_v9_0_mc_funcs = {
>>> + .adjust_mc_addr = gmc_v9_0_adjust_mc_addr,
>>> +};
>>> +
>>> +static void gmc_v9_0_set_mc_funcs(struct amdgpu_device *adev)
>>> +{
>>> + adev->mc.mc_funcs = &gmc_v9_0_mc_funcs;
>>> +}
>>> +
>>> +static int gmc_v9_0_early_init(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + gmc_v9_0_set_gart_funcs(adev);
>>> + gmc_v9_0_set_mc_funcs(adev);
>>> + gmc_v9_0_set_irq_funcs(adev);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_late_init(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> + return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
>>> +}
>>> +
>>> +static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
>>> + struct amdgpu_mc *mc)
>>> +{
>>> + u64 base = mmhub_v1_0_get_fb_location(adev);
>>> + amdgpu_vram_location(adev, &adev->mc, base);
>>> + adev->mc.gtt_base_align = 0;
>>> + amdgpu_gtt_location(adev, mc);
>>> +}
>>> +
>>> +/**
>>> + * gmc_v9_0_mc_init - initialize the memory controller driver params
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + *
>>> + * Look up the amount of vram, vram width, and decide how to place
>>> + * vram and gart within the GPU's physical address space.
>>> + * Returns 0 for success.
>>> + */
>>> +static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
>>> +{
>>> + u32 tmp;
>>> + int chansize, numchan;
>>> +
>>> + /* hbm memory channel size */
>>> + chansize = 128;
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(DF, 0,
>>> mmDF_CS_AON0_DramBaseAddress0));
>>> + tmp &= DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK;
>>> + tmp >>= DF_CS_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
>>> + switch (tmp) {
>>> + case 0:
>>> + default:
>>> + numchan = 1;
>>> + break;
>>> + case 1:
>>> + numchan = 2;
>>> + break;
>>> + case 2:
>>> + numchan = 0;
>>> + break;
>>> + case 3:
>>> + numchan = 4;
>>> + break;
>>> + case 4:
>>> + numchan = 0;
>>> + break;
>>> + case 5:
>>> + numchan = 8;
>>> + break;
>>> + case 6:
>>> + numchan = 0;
>>> + break;
>>> + case 7:
>>> + numchan = 16;
>>> + break;
>>> + case 8:
>>> + numchan = 2;
>>> + break;
>>> + }
>>> + adev->mc.vram_width = numchan * chansize;
>>> +
>>> + /* Could aper size report 0 ? */
>>> + adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
>>> + adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
>>> + /* size in MB on si */
>>> + adev->mc.mc_vram_size =
>>> + nbio_v6_1_get_memsize(adev) * 1024ULL * 1024ULL;
>>> + adev->mc.real_vram_size = adev->mc.mc_vram_size;
>>> + adev->mc.visible_vram_size = adev->mc.aper_size;
>>> +
>>> + /* In case the PCI BAR is larger than the actual amount of vram */
>>> + if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
>>> + adev->mc.visible_vram_size = adev->mc.real_vram_size;
>>> +
>>> + /* unless the user had overridden it, set the gart
>>> + * size equal to the 1024 or vram, whichever is larger.
>>> + */
>>> + if (amdgpu_gart_size == -1)
>>> + adev->mc.gtt_size = max((1024ULL << 20),
>>> adev->mc.mc_vram_size);
>>> + else
>>> + adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
>>> +
>>> + gmc_v9_0_vram_gtt_location(adev, &adev->mc);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_gart_init(struct amdgpu_device *adev)
>>> +{
>>> + int r;
>>> +
>>> + if (adev->gart.robj) {
>>> + WARN(1, "VEGA10 PCIE GART already initialized\n");
>>> + return 0;
>>> + }
>>> + /* Initialize common gart structure */
>>> + r = amdgpu_gart_init(adev);
>>> + if (r)
>>> + return r;
>>> + adev->gart.table_size = adev->gart.num_gpu_pages * 8;
>>> + adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE(MTYPE_UC) |
>>> + AMDGPU_PTE_EXECUTABLE;
>>> + return amdgpu_gart_table_vram_alloc(adev);
>>> +}
>>> +
>>> +/*
>>> + * vm
>>> + * VMID 0 is the physical GPU addresses as used by the kernel.
>>> + * VMIDs 1-15 are used for userspace clients and are handled
>>> + * by the amdgpu vm/hsa code.
>>> + */
>>> +/**
>>> + * gmc_v9_0_vm_init - vm init callback
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + *
>>> + * Inits vega10 specific vm parameters (number of VMs, base of vram for
>>> + * VMIDs 1-15) (vega10).
>>> + * Returns 0 for success.
>>> + */
>>> +static int gmc_v9_0_vm_init(struct amdgpu_device *adev)
>>> +{
>>> + /*
>>> + * number of VMs
>>> + * VMID 0 is reserved for System
>>> + * amdgpu graphics/compute will use VMIDs 1-7
>>> + * amdkfd will use VMIDs 8-15
>>> + */
>>> + adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
>>> + amdgpu_vm_manager_init(adev);
>>> +
>>> + /* base offset of vram pages */
>>> + /*XXX This value is not zero for APU*/
>>> + adev->vm_manager.vram_base_offset = 0;
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +/**
>>> + * gmc_v9_0_vm_fini - vm fini callback
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + *
>>> + * Tear down any asic specific VM setup.
>>> + */
>>> +static void gmc_v9_0_vm_fini(struct amdgpu_device *adev)
>>> +{
>>> + return;
>>> +}
>>> +
>>> +static int gmc_v9_0_sw_init(void *handle)
>>> +{
>>> + int r;
>>> + int dma_bits;
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + spin_lock_init(&adev->mc.invalidate_lock);
>>> +
>>> + if (adev->flags & AMD_IS_APU) {
>>> + adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
>>> + } else {
>>> + /* XXX Don't know how to get VRAM type yet. */
>>> + adev->mc.vram_type = AMDGPU_VRAM_TYPE_HBM;
>>> + }
>>> +
>>> + /* This interrupt is VMC page fault.*/
>>> + r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_VMC, 0,
>>> + &adev->mc.vm_fault);
>>> +
>>> + if (r)
>>> + return r;
>>> +
>>> + /* Adjust VM size here.
>>> + * Currently default to 64GB ((16 << 20) 4k pages).
>>> + * Max GPUVM size is 48 bits.
>>> + */
>>> + adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
>>> +
>>> + /* Set the internal MC address mask
>>> + * This is the max address of the GPU's
>>> + * internal address space.
>>> + */
>>> + adev->mc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
>>> +
>>> + /* set DMA mask + need_dma32 flags.
>>> + * PCIE - can handle 44-bits.
>>> + * IGP - can handle 44-bits
>>> + * PCI - dma32 for legacy pci gart, 44 bits on vega10
>>> + */
>>> + adev->need_dma32 = false;
>>> + dma_bits = adev->need_dma32 ? 32 : 44;
>>> + r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
>>> + if (r) {
>>> + adev->need_dma32 = true;
>>> + dma_bits = 32;
>>> + printk(KERN_WARNING "amdgpu: No suitable DMA
>>> available.\n");
>>> + }
>>> + r = pci_set_consistent_dma_mask(adev->pdev,
>>> DMA_BIT_MASK(dma_bits));
>>> + if (r) {
>>> + pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
>>> + printk(KERN_WARNING "amdgpu: No coherent DMA
>>> available.\n");
>>> + }
>>> +
>>> + r = gmc_v9_0_mc_init(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + /* Memory manager */
>>> + r = amdgpu_bo_init(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + r = gmc_v9_0_gart_init(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + if (!adev->vm_manager.enabled) {
>>> + r = gmc_v9_0_vm_init(adev);
>>> + if (r) {
>>> + dev_err(adev->dev, "vm manager initialization
>>> failed (%d).\n", r);
>>> + return r;
>>> + }
>>> + adev->vm_manager.enabled = true;
>>> + }
>>> + return r;
>>> +}
>>> +
>>> +/**
>>> + * gmc_v8_0_gart_fini - vm fini callback
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + *
>>> + * Tears down the driver GART/VM setup (CIK).
>>> + */
>>> +static void gmc_v9_0_gart_fini(struct amdgpu_device *adev)
>>> +{
>>> + amdgpu_gart_table_vram_free(adev);
>>> + amdgpu_gart_fini(adev);
>>> +}
>>> +
>>> +static int gmc_v9_0_sw_fini(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + if (adev->vm_manager.enabled) {
>>> + amdgpu_vm_manager_fini(adev);
>>> + gmc_v9_0_vm_fini(adev);
>>> + adev->vm_manager.enabled = false;
>>> + }
>>> + gmc_v9_0_gart_fini(adev);
>>> + amdgpu_gem_force_release(adev);
>>> + amdgpu_bo_fini(adev);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static void gmc_v9_0_init_golden_registers(struct amdgpu_device *adev)
>>> +{
>>> + switch (adev->asic_type) {
>>> + case CHIP_VEGA10:
>>> + break;
>>> + default:
>>> + break;
>>> + }
>>> +}
>>> +
>>> +/**
>>> + * gmc_v9_0_gart_enable - gart enable
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + */
>>> +static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
>>> +{
>>> + int r;
>>> + bool value;
>>> + u32 tmp;
>>> +
>>> + amdgpu_program_register_sequence(adev,
>>> + golden_settings_vega10_hdp,
>>> + (const u32)ARRAY_SIZE(golden_settings_vega10_hdp));
>>> +
>>> + if (adev->gart.robj == NULL) {
>>> + dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
>>> + return -EINVAL;
>>> + }
>>> + r = amdgpu_gart_table_vram_pin(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + /* After HDP is initialized, flush HDP.*/
>>> + nbio_v6_1_hdp_flush(adev);
>>> +
>>> + r = gfxhub_v1_0_gart_enable(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + r = mmhub_v1_0_gart_enable(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MISC_CNTL));
>>> + tmp |= HDP_MISC_CNTL__FLUSH_INVALIDATE_CACHE_MASK;
>>> + WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MISC_CNTL), tmp);
>>> +
>>> + tmp = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_HOST_PATH_CNTL));
>>> + WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_HOST_PATH_CNTL), tmp);
>>> +
>>> +
>>> + if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
>>> + value = false;
>>> + else
>>> + value = true;
>>> +
>>> + gfxhub_v1_0_set_fault_enable_default(adev, value);
>>> + mmhub_v1_0_set_fault_enable_default(adev, value);
>>> +
>>> + gmc_v9_0_gart_flush_gpu_tlb(adev, 0);
>>> +
>>> + DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
>>> + (unsigned)(adev->mc.gtt_size >> 20),
>>> + (unsigned long long)adev->gart.table_addr);
>>> + adev->gart.ready = true;
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_hw_init(void *handle)
>>> +{
>>> + int r;
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + /* The sequence of these two function calls matters.*/
>>> + gmc_v9_0_init_golden_registers(adev);
>>> +
>>> + r = gmc_v9_0_gart_enable(adev);
>>> +
>>> + return r;
>>> +}
>>> +
>>> +/**
>>> + * gmc_v9_0_gart_disable - gart disable
>>> + *
>>> + * @adev: amdgpu_device pointer
>>> + *
>>> + * This disables all VM page table.
>>> + */
>>> +static void gmc_v9_0_gart_disable(struct amdgpu_device *adev)
>>> +{
>>> + gfxhub_v1_0_gart_disable(adev);
>>> + mmhub_v1_0_gart_disable(adev);
>>> + amdgpu_gart_table_vram_unpin(adev);
>>> +}
>>> +
>>> +static int gmc_v9_0_hw_fini(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
>>> + gmc_v9_0_gart_disable(adev);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_suspend(void *handle)
>>> +{
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + if (adev->vm_manager.enabled) {
>>> + gmc_v9_0_vm_fini(adev);
>>> + adev->vm_manager.enabled = false;
>>> + }
>>> + gmc_v9_0_hw_fini(adev);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_resume(void *handle)
>>> +{
>>> + int r;
>>> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>> +
>>> + r = gmc_v9_0_hw_init(adev);
>>> + if (r)
>>> + return r;
>>> +
>>> + if (!adev->vm_manager.enabled) {
>>> + r = gmc_v9_0_vm_init(adev);
>>> + if (r) {
>>> + dev_err(adev->dev,
>>> + "vm manager initialization failed
>>> (%d).\n", r);
>>> + return r;
>>> + }
>>> + adev->vm_manager.enabled = true;
>>> + }
>>> +
>>> + return r;
>>> +}
>>> +
>>> +static bool gmc_v9_0_is_idle(void *handle)
>>> +{
>>> + /* MC is always ready in GMC v9.*/
>>> + return true;
>>> +}
>>> +
>>> +static int gmc_v9_0_wait_for_idle(void *handle)
>>> +{
>>> + /* There is no need to wait for MC idle in GMC v9.*/
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_soft_reset(void *handle)
>>> +{
>>> + /* XXX for emulation.*/
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_set_clockgating_state(void *handle,
>>> + enum amd_clockgating_state state)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +static int gmc_v9_0_set_powergating_state(void *handle,
>>> + enum amd_powergating_state state)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +const struct amd_ip_funcs gmc_v9_0_ip_funcs = {
>>> + .name = "gmc_v9_0",
>>> + .early_init = gmc_v9_0_early_init,
>>> + .late_init = gmc_v9_0_late_init,
>>> + .sw_init = gmc_v9_0_sw_init,
>>> + .sw_fini = gmc_v9_0_sw_fini,
>>> + .hw_init = gmc_v9_0_hw_init,
>>> + .hw_fini = gmc_v9_0_hw_fini,
>>> + .suspend = gmc_v9_0_suspend,
>>> + .resume = gmc_v9_0_resume,
>>> + .is_idle = gmc_v9_0_is_idle,
>>> + .wait_for_idle = gmc_v9_0_wait_for_idle,
>>> + .soft_reset = gmc_v9_0_soft_reset,
>>> + .set_clockgating_state = gmc_v9_0_set_clockgating_state,
>>> + .set_powergating_state = gmc_v9_0_set_powergating_state,
>>> +};
>>> +
>>> +const struct amdgpu_ip_block_version gmc_v9_0_ip_block =
>>> +{
>>> + .type = AMD_IP_BLOCK_TYPE_GMC,
>>> + .major = 9,
>>> + .minor = 0,
>>> + .rev = 0,
>>> + .funcs = &gmc_v9_0_ip_funcs,
>>> +};
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h
>>> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h
>>> new file mode 100644
>>> index 0000000..b030ca5
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.h
>>> @@ -0,0 +1,30 @@
>>> +/*
>>> + * Copyright 2016 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 __GMC_V9_0_H__
>>> +#define __GMC_V9_0_H__
>>> +
>>> +extern const struct amd_ip_funcs gmc_v9_0_ip_funcs;
>>> +extern const struct amdgpu_ip_block_version gmc_v9_0_ip_block;
>>> +
>>> +#endif
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
>>> b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
>>> new file mode 100644
>>> index 0000000..b1e0e6b
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
>>> @@ -0,0 +1,585 @@
>>> +/*
>>> + * Copyright 2016 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 "mmhub_v1_0.h"
>>> +
>>> +#include "vega10/soc15ip.h"
>>> +#include "vega10/MMHUB/mmhub_1_0_offset.h"
>>> +#include "vega10/MMHUB/mmhub_1_0_sh_mask.h"
>>> +#include "vega10/MMHUB/mmhub_1_0_default.h"
>>> +#include "vega10/ATHUB/athub_1_0_offset.h"
>>> +#include "vega10/ATHUB/athub_1_0_sh_mask.h"
>>> +#include "vega10/ATHUB/athub_1_0_default.h"
>>> +#include "vega10/vega10_enum.h"
>>> +
>>> +#include "soc15_common.h"
>>> +
>>> +u64 mmhub_v1_0_get_fb_location(struct amdgpu_device *adev)
>>> +{
>>> + u64 base = RREG32(SOC15_REG_OFFSET(MMHUB, 0,
>>> mmMC_VM_FB_LOCATION_BASE));
>>> +
>>> + base &= MC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
>>> + base <<= 24;
>>> +
>>> + return base;
>>> +}
>>> +
>>> +int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
>>> +{
>>> + u32 tmp;
>>> + u64 value;
>>> + uint64_t addr;
>>> + u32 i;
>>> +
>>> + /* Program MC. */
>>> + /* Update configuration */
