AMD-GFX Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: "Koenig, Christian" <Christian.Koenig-5C7GfCeVMHo@public.gmane.org>
To: "Yang, Philip" <Philip.Yang-5C7GfCeVMHo@public.gmane.org>
Cc: "Kuehling, Felix" <Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>,
	"amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
	<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Subject: Re: [PATCH 1/1] drm/amdkfd: Consistently apply noretry setting
Date: Thu, 4 Jul 2019 07:14:38 +0000	[thread overview]
Message-ID: <be9a4b8c-cd48-443f-9f55-09b41c91e263@email.android.com> (raw)
In-Reply-To: <5edef671-8986-e513-f03b-15066b8ab0d6-5C7GfCeVMHo@public.gmane.org>


[-- Attachment #1.1: Type: text/plain, Size: 10913 bytes --]

Patches to silent retry faults are already on the mailing list.

But I need to get back from vacation to take a closer look at this once more.

Christian.

Am 04.07.2019 00:19 schrieb "Yang, Philip" <Philip.Yang-5C7GfCeVMHo@public.gmane.org>:
amdgpu_noretry default value is 0, this will generate VM fault storm
because the vm fault is not recovered. It may slow down the machine and
need reboot after application VM fault. Maybe change default value to 1?

Other than that, this is reviewed by Philip Yang <Philip.Yang-5C7GfCeVMHo@public.gmane.org>

On 2019-07-02 3:05 p.m., Kuehling, Felix wrote:
> Ping.
>
> Christian, Philip, any opinion about this patch?
>
> On 2019-06-21 8:20 p.m., Kuehling, Felix 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-5C7GfCeVMHo@public.gmane.org>
>> CC: Philip Yang <Philip.Yang-5C7GfCeVMHo@public.gmane.org>
>> Signed-off-by: Felix Kuehling <Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
>> ---
>>    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

[-- Attachment #1.2: Type: text/html, Size: 21744 bytes --]

[-- Attachment #2: Type: text/plain, Size: 153 bytes --]

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

  parent reply	other threads:[~2019-07-04  7:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-22  0:20 [PATCH 1/1] drm/amdkfd: Consistently apply noretry setting Kuehling, Felix
     [not found] ` <20190622001959.32290-1-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2019-07-02 19:05   ` Kuehling, Felix
     [not found]     ` <953e3a92-2d3b-0275-2a05-253570ab6277-5C7GfCeVMHo@public.gmane.org>
2019-07-03 22:19       ` Yang, Philip
     [not found]         ` <5edef671-8986-e513-f03b-15066b8ab0d6-5C7GfCeVMHo@public.gmane.org>
2019-07-04  7:14           ` Koenig, Christian [this message]
2019-07-04 16:02           ` Kuehling, Felix
     [not found]             ` <00e7be6b-4869-ad60-9dc2-88d0ecaf1fc0-5C7GfCeVMHo@public.gmane.org>
2019-07-04 17:16               ` Yang, Philip
     [not found]                 ` <3bf9cf4c-456c-cb22-7b2a-edd5433cae47-5C7GfCeVMHo@public.gmane.org>
2019-07-04 18:00                   ` Kuehling, Felix
2019-07-12 19:48   ` Liu, Shaoyun

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=be9a4b8c-cd48-443f-9f55-09b41c91e263@email.android.com \
    --to=christian.koenig-5c7gfcevmho@public.gmane.org \
    --cc=Felix.Kuehling-5C7GfCeVMHo@public.gmane.org \
    --cc=Philip.Yang-5C7GfCeVMHo@public.gmane.org \
    --cc=amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox