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linux/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
Felix Kuehling 75ee64875e drm/amdkfd: Consistently apply noretry setting 
Apply the same setting to SH_MEM_CONFIG and VM_CONTEXT1_CNTL. This
makes the noretry param no longer KFD-specific. On GFX10 I'm not
changing SH_MEM_CONFIG in this commit because GFX10 has different
retry behaviour in the SQ and I don't have a way to test it at the
moment.

Suggested-by: Christian König <Christian.Koenig@amd.com>
CC: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by : Shaoyun.liu < Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-16 13:02:55 -05:00

446 lines
15 KiB
C
Raw Blame History

/*
* 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 "mmhub_v2_0.h"
#include "mmhub/mmhub_2_0_0_offset.h"
#include "mmhub/mmhub_2_0_0_sh_mask.h"
#include "mmhub/mmhub_2_0_0_default.h"
#include "navi10_enum.h"
#include "soc15_common.h"
static void mmhub_v2_0_init_gart_pt_regs(struct amdgpu_device *adev)
{
uint64_t value = amdgpu_gmc_pd_addr(adev->gart.bo);
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
lower_32_bits(value));
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
upper_32_bits(value));
}
static void mmhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
{
mmhub_v2_0_init_gart_pt_regs(adev);
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
(u32)(adev->gmc.gart_start >> 12));
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
(u32)(adev->gmc.gart_start >> 44));
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
(u32)(adev->gmc.gart_end >> 12));
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
(u32)(adev->gmc.gart_end >> 44));
}
static void mmhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
{
uint64_t value;
uint32_t tmp;
/* Disable AGP. */
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BASE, 0);
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_TOP, 0);
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BOT, 0x00FFFFFF);
/* Program the system aperture low logical page number. */
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
adev->gmc.vram_start >> 18);
WREG32_SOC15(MMHUB, 0, mmMMMC_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(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
(u32)(value >> 12));
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
(u32)(value >> 44));
/* Program "protection fault". */
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
(u32)(adev->dummy_page_addr >> 12));
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
(u32)((u64)adev->dummy_page_addr >> 44));
tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
}
static void mmhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)
{
uint32_t tmp;
/* Setup TLB control */
tmp = RREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
ENABLE_ADVANCED_DRIVER_MODEL, 1);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
MTYPE, MTYPE_UC); /* UC, uncached */
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL, tmp);
}
static void mmhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
{
uint32_t tmp;
/* Setup L2 cache */
tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL,
ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
/* XXX for emulation, Refer to closed source code.*/
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
0);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 1);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL, tmp);
tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL2);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL2, tmp);
tmp = mmMMVM_L2_CNTL3_DEFAULT;
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL3, tmp);
tmp = mmMMVM_L2_CNTL4_DEFAULT;
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL4, tmp);
}
static void mmhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
{
uint32_t tmp;
tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_CNTL);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_CNTL, tmp);
}
static void mmhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
{
WREG32_SOC15(MMHUB, 0,
mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
0xFFFFFFFF);
WREG32_SOC15(MMHUB, 0,
mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
0x0000000F);
WREG32_SOC15(MMHUB, 0,
mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
WREG32_SOC15(MMHUB, 0,
mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
0);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
0);
}
static void mmhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
{
int i;
uint32_t tmp;
for (i = 0; i <= 14; i++) {
tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_CNTL, i);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
adev->vm_manager.num_level);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_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, MMVM_CONTEXT1_CNTL,
RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
!amdgpu_noretry);
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_CNTL, i, tmp);
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2,
lower_32_bits(adev->vm_manager.max_pfn - 1));
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
upper_32_bits(adev->vm_manager.max_pfn - 1));
}
}
static void mmhub_v2_0_program_invalidation(struct amdgpu_device *adev)
{
unsigned i;
for (i = 0; i < 18; ++i) {
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
2 * i, 0xffffffff);
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
2 * i, 0x1f);
}
}
int mmhub_v2_0_gart_enable(struct amdgpu_device *adev)
{
if (amdgpu_sriov_vf(adev)) {
/*
* MMMC_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(MMHUB, 0, mmMMMC_VM_FB_LOCATION_BASE,
adev->gmc.vram_start >> 24);
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_FB_LOCATION_TOP,
adev->gmc.vram_end >> 24);
}
/* GART Enable. */
mmhub_v2_0_init_gart_aperture_regs(adev);
mmhub_v2_0_init_system_aperture_regs(adev);
mmhub_v2_0_init_tlb_regs(adev);
mmhub_v2_0_init_cache_regs(adev);
mmhub_v2_0_enable_system_domain(adev);
mmhub_v2_0_disable_identity_aperture(adev);
mmhub_v2_0_setup_vmid_config(adev);
mmhub_v2_0_program_invalidation(adev);
return 0;
}
void mmhub_v2_0_gart_disable(struct amdgpu_device *adev)
{
u32 tmp;
u32 i;
/* Disable all tables */
for (i = 0; i < 16; i++)
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_CNTL, i, 0);
/* Setup TLB control */
tmp = RREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
ENABLE_ADVANCED_DRIVER_MODEL, 0);
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL, tmp);
/* Setup L2 cache */
tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 0);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL, tmp);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL3, 0);
}
/**
* mmhub_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 mmhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
{
u32 tmp;
tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
if (!value) {
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
CRASH_ON_NO_RETRY_FAULT, 1);
tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
CRASH_ON_RETRY_FAULT, 1);
}
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL, tmp);
}
void mmhub_v2_0_init(struct amdgpu_device *adev)
{
struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB];
hub->ctx0_ptb_addr_lo32 =
SOC15_REG_OFFSET(MMHUB, 0,
mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
hub->ctx0_ptb_addr_hi32 =
SOC15_REG_OFFSET(MMHUB, 0,
mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
hub->vm_inv_eng0_req =
SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_REQ);
hub->vm_inv_eng0_ack =
SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_ACK);
hub->vm_context0_cntl =
SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_CNTL);
hub->vm_l2_pro_fault_status =
SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_STATUS);
hub->vm_l2_pro_fault_cntl =
SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL);
}
static void mmhub_v2_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
uint32_t def, data, def1, data1;
def = data = RREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_MISC_CG);
def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) {
data |= MM_ATC_L2_MISC_CG__ENABLE_MASK;
data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
} else {
data &= ~MM_ATC_L2_MISC_CG__ENABLE_MASK;
data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
}
if (def != data)
WREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_MISC_CG, data);
if (def1 != data1)
WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2, data1);
}
static void mmhub_v2_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
bool enable)
{
uint32_t def, data;
def = data = RREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_MISC_CG);
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
data |= MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
else
data &= ~MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
if (def != data)
WREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_MISC_CG, data);
}
int mmhub_v2_0_set_clockgating(struct amdgpu_device *adev,
enum amd_clockgating_state state)
{
if (amdgpu_sriov_vf(adev))
return 0;
switch (adev->asic_type) {
case CHIP_NAVI10:
mmhub_v2_0_update_medium_grain_clock_gating(adev,
state == AMD_CG_STATE_GATE ? true : false);
mmhub_v2_0_update_medium_grain_light_sleep(adev,
state == AMD_CG_STATE_GATE ? true : false);
break;
default:
break;
}
return 0;
}
void mmhub_v2_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
{
int data, data1;
if (amdgpu_sriov_vf(adev))
*flags = 0;
data = RREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_MISC_CG);
data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
/* AMD_CG_SUPPORT_MC_MGCG */
if ((data & MM_ATC_L2_MISC_CG__ENABLE_MASK) &&
!(data1 & (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK)))
*flags |= AMD_CG_SUPPORT_MC_MGCG;
/* AMD_CG_SUPPORT_MC_LS */
if (data & MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
*flags |= AMD_CG_SUPPORT_MC_LS;
}
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