Reviewed-by : Shaoyun.liu < Shaoyun.liu@xxxxxxx>
I manually applied the change and verified on vega10 on visualization
which we do have retry vm fault issue . With this patch , the no-retry
interrupt delivered as expected and I don't see the interrupt storm.
Regards
shaoyun.liu
On 2019-06-21 8:19 p.m., Felix Kuehling wrote:
> 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@xxxxxxx>
> CC: Philip Yang <Philip.Yang@xxxxxxx>
> Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 16 +++++-----------
> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 ++++
> drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 3 ++-
> drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 3 ++-
> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 3 ++-
> drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c | 3 ++-
> .../drm/amd/amdkfd/kfd_device_queue_manager_v9.c | 2 +-
> drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 +-
> 9 files changed, 20 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 9b1efdf94bdf..05875279c09e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -164,6 +164,7 @@ extern int amdgpu_async_gfx_ring;
> extern int amdgpu_mcbp;
> extern int amdgpu_discovery;
> extern int amdgpu_mes;
> +extern int amdgpu_noretry;
>
> #ifdef CONFIG_DRM_AMDGPU_SI
> extern int amdgpu_si_support;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 7cf6ab07b113..0d578d95be93 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -140,6 +140,7 @@ int amdgpu_async_gfx_ring = 1;
> int amdgpu_mcbp = 0;
> int amdgpu_discovery = 0;
> int amdgpu_mes = 0;
> +int amdgpu_noretry;
>
> struct amdgpu_mgpu_info mgpu_info = {
> .mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),
> @@ -591,6 +592,10 @@ MODULE_PARM_DESC(mes,
> "Enable Micro Engine Scheduler (0 = disabled (default), 1 = enabled)");
> module_param_named(mes, amdgpu_mes, int, 0444);
>
> +MODULE_PARM_DESC(noretry,
> + "Disable retry faults (0 = retry enabled (default), 1 = retry disabled)");
> +module_param_named(noretry, amdgpu_noretry, int, 0644);
> +
> #ifdef CONFIG_HSA_AMD
> /**
> * DOC: sched_policy (int)
> @@ -666,17 +671,6 @@ module_param(ignore_crat, int, 0444);
> MODULE_PARM_DESC(ignore_crat,
> "Ignore CRAT table during KFD initialization (0 = use CRAT (default), 1 = ignore CRAT)");
>
> -/**
> - * DOC: noretry (int)
> - * This parameter sets sh_mem_config.retry_disable. Default value, 0, enables retry.
> - * Setting 1 disables retry.
> - * Retry is needed for recoverable page faults.
> - */
> -int noretry;
> -module_param(noretry, int, 0644);
> -MODULE_PARM_DESC(noretry,
> - "Set sh_mem_config.retry_disable on Vega10 (0 = retry enabled (default), 1 = retry disabled)");
> -
> /**
> * DOC: halt_if_hws_hang (int)
> * Halt if HWS hang is detected. Default value, 0, disables the halt on hang.
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index e0f3014e76ea..c4e715170bfe 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -1938,11 +1938,15 @@ static void gfx_v9_0_constants_init(struct amdgpu_device *adev)
> if (i == 0) {
> tmp = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE,
> SH_MEM_ALIGNMENT_MODE_UNALIGNED);
> + tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, RETRY_DISABLE,
> + !!amdgpu_noretry);
> WREG32_SOC15_RLC(GC, 0, mmSH_MEM_CONFIG, tmp);
> WREG32_SOC15_RLC(GC, 0, mmSH_MEM_BASES, 0);
> } else {
> tmp = REG_SET_FIELD(0, SH_MEM_CONFIG, ALIGNMENT_MODE,
> SH_MEM_ALIGNMENT_MODE_UNALIGNED);
> + tmp = REG_SET_FIELD(tmp, SH_MEM_CONFIG, RETRY_DISABLE,
> + !!amdgpu_noretry);
> WREG32_SOC15_RLC(GC, 0, mmSH_MEM_CONFIG, tmp);
> tmp = REG_SET_FIELD(0, SH_MEM_BASES, PRIVATE_BASE,
> (adev->gmc.private_aperture_start >> 48));
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
> index 9f0f189fc111..15986748f59f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
> @@ -236,7 +236,8 @@ static void gfxhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
> block_size);
> /* Send no-retry XNACK on fault to suppress VM fault storm. */
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 1);
> + RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
> + !amdgpu_noretry);
> WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL, i, tmp);
> WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
> WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
> index b7de60a15623..d605b4963f8a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
> @@ -215,7 +215,8 @@ static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
> 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);
> + RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
> + !amdgpu_noretry);
> 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);
> diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
> index 05d1d448c8f5..dc5ce03034d3 100644
> --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
> @@ -265,7 +265,8 @@ static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
> block_size);
> /* Send no-retry XNACK on fault to suppress VM fault storm. */
> tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
> - RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 1);
> + RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
> + !amdgpu_noretry);
> WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i, tmp);
> WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
> WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
> diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
> index 37a1a318ae63..0f9549f19ade 100644
> --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
> @@ -205,7 +205,8 @@ static void mmhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
> 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, 0);
> + 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);
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c
> index e9fe39382371..95a82ac455f2 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c
> @@ -61,7 +61,7 @@ static int update_qpd_v9(struct device_queue_manager *dqm,
> qpd->sh_mem_config =
> SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
> SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT;
> - if (noretry &&
> + if (amdgpu_noretry &&
> !dqm->dev->device_info->needs_iommu_device)
> qpd->sh_mem_config |=
> 1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> index d4bba0124d29..aa7bf20d20f8 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> @@ -157,7 +157,7 @@ extern int ignore_crat;
> /*
> * Set sh_mem_config.retry_disable on Vega10
> */
> -extern int noretry;
> +extern int amdgpu_noretry;
>
> /*
> * Halt if HWS hang is detected
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