RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Liu, Monk
> What are you talking about? The bits control what is used in the MC 
> interface, there is no increment or anything here.

My bad , it is  RLC_SPM_PERF_CNTR not RLC_SPM_PERF_COUNTER, I though it as 
COUNTER 


>>Agreed that sounds like a good idea to me as well no matter if we use RMW or 
>>just a write.

If we go NOKIQ way then we always use MMIO to update it,  no RMW package at all 
Besides RMW is not available in KCQ ring ... 
Looks we have no choice !

_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: Tao, Yintian  
Sent: Tuesday, April 21, 2020 9:46 PM
To: Koenig, Christian ; Liu, Monk ; 
He, Jacob ; amd-gfx@lists.freedesktop.org
Subject: RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

Hi  Christian


Great. Then can you modify the patch according to Monk's suggestion?
We need this patch for one important project.


Best Regards
Yintian Tao

-Original Message-
From: Koenig, Christian 
Sent: 2020年4月21日 21:38
To: Liu, Monk ; Tao, Yintian ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

> The problem is some fields are increased by hardware

What are you talking about? The bits control what is used in the MC interface, 
there is no increment or anything here.

> I think at least we should apply one change:  we use NO_KIQ for SRIOV 
> pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ 
> flood

Agreed that sounds like a good idea to me as well no matter if we use RMW or 
just a write.

Regards,
Christian.

Am 21.04.20 um 15:34 schrieb Liu, Monk:
> The problem is some fields are increased by hardware, and RLC simply 
> read its value, we cannot set those field together with VMID
>
> Christian, we should stop arguing on this small feature,  there is no way to 
> have a worse solution compared with current logic 
>
> I think at least we should apply one change:  we use NO_KIQ for SRIOV 
> pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ 
> flood
>
> _
> Monk Liu|GPU Virtualization Team |AMD
>
>
> -Original Message-
> From: amd-gfx  On Behalf Of 
> Christian K?nig
> Sent: Tuesday, April 21, 2020 7:52 PM
> To: Liu, Monk ; Koenig, Christian 
> ; Tao, Yintian ; He, 
> Jacob ; amd-gfx@lists.freedesktop.org
> Cc: Gu, Frans 
> Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update
>
> Hi Monk,
>
> at least on Vega that should be fine. If the RLC should use anything else 
> than 0 here we should update that together with the VMID.
>
> Regards,
> Christian.
>
> Am 21.04.20 um 11:54 schrieb Liu, Monk:
>>>>> Could only be that the firmware updates the bits to something non 
>>>>> default, I'm going to double check that on a Vega10.
>> I think that will be a sure answer, otherwise why we need those field if we 
>> always write 0 to them and reader always expect 0 reading back from them ??
>>
>> Those fields are kind of performance counters
>>
>> _
>> Monk Liu|GPU Virtualization Team |AMD
>>
>>
>> -Original Message-
>> From: Christian König 
>> Sent: Tuesday, April 21, 2020 5:52 PM
>> To: Tao, Yintian ; Liu, Monk ; 
>> He, Jacob ; amd-gfx@lists.freedesktop.org
>> Cc: Gu, Frans 
>> Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update
>>
>> Am 21.04.20 um 11:45 schrieb Tao, Yintian:
>>> -Original Message-
>>> From: Christian König 
>>> Sent: 2020年4月21日 17:10
>>> To: Liu, Monk ; Tao, Yintian 
>>> ; He, Jacob ; 
>>> amd-gfx@lists.freedesktop.org
>>> Cc: Gu, Frans 
>>> Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update
>>>
>>> The RLC SPM configuration register contains the information how the memory 
>>> access is made (VMID, MTYPE, etc) which should always be consistent.
>>>
>>> So instead of a read modify write cycle of the VMID always update the whole 
>>> register.
>>>
>>> Signed-off-by: Christian König 
>>> ---
>>> drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
>>> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
>>> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
>>> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
>>> 4 files changed, 4 insertions(+), 24 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> index 0a03e2ad5d95..2a6556371046 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>&g

RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Tao, Yintian
Hi  Christian


Great. Then can you modify the patch according to Monk's suggestion?
We need this patch for one important project.


Best Regards
Yintian Tao

-Original Message-
From: Koenig, Christian  
Sent: 2020年4月21日 21:38
To: Liu, Monk ; Tao, Yintian ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

> The problem is some fields are increased by hardware

What are you talking about? The bits control what is used in the MC interface, 
there is no increment or anything here.

> I think at least we should apply one change:  we use NO_KIQ for SRIOV 
> pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ 
> flood

Agreed that sounds like a good idea to me as well no matter if we use RMW or 
just a write.

Regards,
Christian.

Am 21.04.20 um 15:34 schrieb Liu, Monk:
> The problem is some fields are increased by hardware, and RLC simply 
> read its value, we cannot set those field together with VMID
>
> Christian, we should stop arguing on this small feature,  there is no way to 
> have a worse solution compared with current logic 
>
> I think at least we should apply one change:  we use NO_KIQ for SRIOV 
> pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ 
> flood
>
> _
> Monk Liu|GPU Virtualization Team |AMD
>
>
> -Original Message-
> From: amd-gfx  On Behalf Of 
> Christian K?nig
> Sent: Tuesday, April 21, 2020 7:52 PM
> To: Liu, Monk ; Koenig, Christian 
> ; Tao, Yintian ; He, 
> Jacob ; amd-gfx@lists.freedesktop.org
> Cc: Gu, Frans 
> Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update
>
> Hi Monk,
>
> at least on Vega that should be fine. If the RLC should use anything else 
> than 0 here we should update that together with the VMID.
>
> Regards,
> Christian.
>
> Am 21.04.20 um 11:54 schrieb Liu, Monk:
>>>>> Could only be that the firmware updates the bits to something non 
>>>>> default, I'm going to double check that on a Vega10.
>> I think that will be a sure answer, otherwise why we need those field if we 
>> always write 0 to them and reader always expect 0 reading back from them ??
>>
>> Those fields are kind of performance counters
>>
>> _
>> Monk Liu|GPU Virtualization Team |AMD
>>
>>
>> -----Original Message-
>> From: Christian König 
>> Sent: Tuesday, April 21, 2020 5:52 PM
>> To: Tao, Yintian ; Liu, Monk ; 
>> He, Jacob ; amd-gfx@lists.freedesktop.org
>> Cc: Gu, Frans 
>> Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update
>>
>> Am 21.04.20 um 11:45 schrieb Tao, Yintian:
>>> -Original Message-
>>> From: Christian König 
>>> Sent: 2020年4月21日 17:10
>>> To: Liu, Monk ; Tao, Yintian 
>>> ; He, Jacob ; 
>>> amd-gfx@lists.freedesktop.org
>>> Cc: Gu, Frans 
>>> Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update
>>>
>>> The RLC SPM configuration register contains the information how the memory 
>>> access is made (VMID, MTYPE, etc) which should always be consistent.
>>>
>>> So instead of a read modify write cycle of the VMID always update the whole 
>>> register.
>>>
>>> Signed-off-by: Christian König 
>>> ---
>>> drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
>>> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
>>> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
>>> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
>>> 4 files changed, 4 insertions(+), 24 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> index 0a03e2ad5d95..2a6556371046 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> @@ -7030,12 +7030,7 @@ static int
>>> gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
>>> 
>>> static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, 
>>> unsigned vmid)  {
>>> -   u32 data;
>>> -
>>> -   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
>>> -
>>> -   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
>>> -   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
>>> RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
>>> +   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
>>> [yttao]: The orig_val is 0 which means except VMID field other reset fields 
>>> will be set to 0. Whe

Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Christian König

The problem is some fields are increased by hardware


What are you talking about? The bits control what is used in the MC 
interface, there is no increment or anything here.



I think at least we should apply one change:  we use NO_KIQ for SRIOV 
pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ flood


Agreed that sounds like a good idea to me as well no matter if we use 
RMW or just a write.


Regards,
Christian.

Am 21.04.20 um 15:34 schrieb Liu, Monk:

The problem is some fields are increased by hardware, and RLC simply read its 
value, we cannot set those field together with VMID

Christian, we should stop arguing on this small feature,  there is no way to 
have a worse solution compared with current logic 

I think at least we should apply one change:  we use NO_KIQ for SRIOV 
pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ flood

_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: amd-gfx  On Behalf Of Christian 
K?nig
Sent: Tuesday, April 21, 2020 7:52 PM
To: Liu, Monk ; Koenig, Christian ; Tao, 
Yintian ; He, Jacob ; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

Hi Monk,

at least on Vega that should be fine. If the RLC should use anything else than 
0 here we should update that together with the VMID.

Regards,
Christian.

Am 21.04.20 um 11:54 schrieb Liu, Monk:

Could only be that the firmware updates the bits to something non default, I'm 
going to double check that on a Vega10.

I think that will be a sure answer, otherwise why we need those field if we 
always write 0 to them and reader always expect 0 reading back from them ??

Those fields are kind of performance counters

_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: Christian König 
Sent: Tuesday, April 21, 2020 5:52 PM
To: Tao, Yintian ; Liu, Monk ;
He, Jacob ; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

Am 21.04.20 um 11:45 schrieb Tao, Yintian:

-Original Message-
From: Christian König 
Sent: 2020年4月21日 17:10
To: Liu, Monk ; Tao, Yintian ;
He, Jacob ; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update

The RLC SPM configuration register contains the information how the memory 
access is made (VMID, MTYPE, etc) which should always be consistent.

So instead of a read modify write cycle of the VMID always update the whole 
register.

Signed-off-by: Christian König 
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
4 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0a03e2ad5d95..2a6556371046 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -7030,12 +7030,7 @@ static int
gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,

static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
[yttao]: The orig_val is 0 which means except VMID field other reset fields 
will be set to 0. Whether it is legal?

According to the register specification that is the default value for those 
bits on gfx9/10.

Could only be that the firmware updates the bits to something non default, I'm 
going to double check that on a Vega10.

Regards,
Christian.


	WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git

a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index b2f10e39eff1..a92486cd038f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct
amdgpu_device *adev)

static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);

	WREG32(mmRLC_SPM_VMID, data);

}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index fc6c2f2bc76c..44fdda68db98 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -56

RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Liu, Monk
The problem is some fields are increased by hardware, and RLC simply read its 
value, we cannot set those field together with VMID 

Christian, we should stop arguing on this small feature,  there is no way to 
have a worse solution compared with current logic  

I think at least we should apply one change:  we use NO_KIQ for SRIOV 
pp_one_vf_mode case to access this SPM register to avoid SRIOV KIQ flood 

_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: amd-gfx  On Behalf Of Christian 
K?nig
Sent: Tuesday, April 21, 2020 7:52 PM
To: Liu, Monk ; Koenig, Christian ; 
Tao, Yintian ; He, Jacob ; 
amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

Hi Monk,

at least on Vega that should be fine. If the RLC should use anything else than 
0 here we should update that together with the VMID.

Regards,
Christian.

Am 21.04.20 um 11:54 schrieb Liu, Monk:
>>>> Could only be that the firmware updates the bits to something non default, 
>>>> I'm going to double check that on a Vega10.
> I think that will be a sure answer, otherwise why we need those field if we 
> always write 0 to them and reader always expect 0 reading back from them ??
>
> Those fields are kind of performance counters
>
> _
> Monk Liu|GPU Virtualization Team |AMD
>
>
> -Original Message-
> From: Christian König 
> Sent: Tuesday, April 21, 2020 5:52 PM
> To: Tao, Yintian ; Liu, Monk ; 
> He, Jacob ; amd-gfx@lists.freedesktop.org
> Cc: Gu, Frans 
> Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update
>
> Am 21.04.20 um 11:45 schrieb Tao, Yintian:
>> -Original Message-
>> From: Christian König 
>> Sent: 2020年4月21日 17:10
>> To: Liu, Monk ; Tao, Yintian ; 
>> He, Jacob ; amd-gfx@lists.freedesktop.org
>> Cc: Gu, Frans 
>> Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update
>>
>> The RLC SPM configuration register contains the information how the memory 
>> access is made (VMID, MTYPE, etc) which should always be consistent.
>>
>> So instead of a read modify write cycle of the VMID always update the whole 
>> register.
>>
>> Signed-off-by: Christian König 
>> ---
>>drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
>> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
>> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
>> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
>>4 files changed, 4 insertions(+), 24 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> index 0a03e2ad5d95..2a6556371046 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> @@ -7030,12 +7030,7 @@ static int
>> gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
>>
>>static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, 
>> unsigned vmid)  {
>> -u32 data;
>> -
>> -data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
>> -
>> -data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
>> -data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
>> RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
>> +u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
>> [yttao]: The orig_val is 0 which means except VMID field other reset fields 
>> will be set to 0. Whether it is legal?
> According to the register specification that is the default value for those 
> bits on gfx9/10.
>
> Could only be that the firmware updates the bits to something non default, 
> I'm going to double check that on a Vega10.
>
> Regards,
> Christian.
>
>>
>>  WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git 
>> a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>> b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>> index b2f10e39eff1..a92486cd038f 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>> @@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct 
>> amdgpu_device *adev)
>>
>>static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
>> vmid)  {
>> -u32 data;
>> -
>> -data = RREG32(mmRLC_SPM_VMID);
>> -
>> -data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
>> -data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
>> RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
>> +u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
>>
>>  WREG32(mmRLC_SPM_VMID, data);

Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Christian König

Hi Monk,

at least on Vega that should be fine. If the RLC should use anything 
else than 0 here we should update that together with the VMID.


Regards,
Christian.

Am 21.04.20 um 11:54 schrieb Liu, Monk:

Could only be that the firmware updates the bits to something non default, I'm 
going to double check that on a Vega10.

I think that will be a sure answer, otherwise why we need those field if we 
always write 0 to them and reader always expect 0 reading back from them ??

Those fields are kind of performance counters

_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: Christian König 
Sent: Tuesday, April 21, 2020 5:52 PM
To: Tao, Yintian ; Liu, Monk ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

Am 21.04.20 um 11:45 schrieb Tao, Yintian:

-Original Message-
From: Christian König 
Sent: 2020年4月21日 17:10
To: Liu, Monk ; Tao, Yintian ;
He, Jacob ; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update

The RLC SPM configuration register contains the information how the memory 
access is made (VMID, MTYPE, etc) which should always be consistent.

So instead of a read modify write cycle of the VMID always update the whole 
register.

Signed-off-by: Christian König 
---
   drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
   4 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0a03e2ad5d95..2a6556371046 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -7030,12 +7030,7 @@ static int
gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
   
   static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
[yttao]: The orig_val is 0 which means except VMID field other reset fields 
will be set to 0. Whether it is legal?

According to the register specification that is the default value for those 
bits on gfx9/10.

Could only be that the firmware updates the bits to something non default, I'm 
going to double check that on a Vega10.

Regards,
Christian.

   
   	WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git

a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index b2f10e39eff1..a92486cd038f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct
amdgpu_device *adev)
   
   static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
   
   	WREG32(mmRLC_SPM_VMID, data);

   }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index fc6c2f2bc76c..44fdda68db98 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5613,12 +5613,7 @@ static void gfx_v8_0_unset_safe_mode(struct
amdgpu_device *adev)
   
   static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
   
   	WREG32(mmRLC_SPM_VMID, data);

   }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 54eded9a6ac5..b36fbf991313 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4950,12 +4950,7 @@ static int
gfx_v9_0_update_gfx_clock_gating(struct amdgpu_device *adev,
   
   static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
   
   	WRE

RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Liu, Monk
>>> Could only be that the firmware updates the bits to something non default, 
>>> I'm going to double check that on a Vega10.

I think that will be a sure answer, otherwise why we need those field if we 
always write 0 to them and reader always expect 0 reading back from them ??

Those fields are kind of performance counters 

_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: Christian König  
Sent: Tuesday, April 21, 2020 5:52 PM
To: Tao, Yintian ; Liu, Monk ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

Am 21.04.20 um 11:45 schrieb Tao, Yintian:
>
> -Original Message-
> From: Christian König 
> Sent: 2020年4月21日 17:10
> To: Liu, Monk ; Tao, Yintian ; 
> He, Jacob ; amd-gfx@lists.freedesktop.org
> Cc: Gu, Frans 
> Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update
>
> The RLC SPM configuration register contains the information how the memory 
> access is made (VMID, MTYPE, etc) which should always be consistent.
>
> So instead of a read modify write cycle of the VMID always update the whole 
> register.
>
> Signed-off-by: Christian König 
> ---
>   drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
>   4 files changed, 4 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 
> b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
> index 0a03e2ad5d95..2a6556371046 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
> @@ -7030,12 +7030,7 @@ static int 
> gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
>   
>   static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
> vmid)  {
> - u32 data;
> -
> - data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
> -
> - data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
> - data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
> RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
> + u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
> [yttao]: The orig_val is 0 which means except VMID field other reset fields 
> will be set to 0. Whether it is legal?

According to the register specification that is the default value for those 
bits on gfx9/10.

Could only be that the firmware updates the bits to something non default, I'm 
going to double check that on a Vega10.

Regards,
Christian.

>   
>   WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git 
> a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c 
> b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> index b2f10e39eff1..a92486cd038f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> @@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct 
> amdgpu_device *adev)
>   
>   static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
> vmid)  {
> - u32 data;
> -
> - data = RREG32(mmRLC_SPM_VMID);
> -
> - data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
> - data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
> RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
> + u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
>   
>   WREG32(mmRLC_SPM_VMID, data);
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index fc6c2f2bc76c..44fdda68db98 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -5613,12 +5613,7 @@ static void gfx_v8_0_unset_safe_mode(struct 
> amdgpu_device *adev)
>   
>   static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
> vmid)  {
> - u32 data;
> -
> - data = RREG32(mmRLC_SPM_VMID);
> -
> - data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
> - data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
> RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
> + u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
>   
>   WREG32(mmRLC_SPM_VMID, data);
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 54eded9a6ac5..b36fbf991313 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -4950,12 +4950,7 @@ static int 
> gfx_v9_0_update_gfx_clock_gating(struct amdgpu_device *adev,
>   
>   static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
> vmid)  {
> - u32 data;
> -
> -  

Re: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Christian König

Am 21.04.20 um 11:45 schrieb Tao, Yintian:


-Original Message-
From: Christian König 
Sent: 2020年4月21日 17:10
To: Liu, Monk ; Tao, Yintian ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update

The RLC SPM configuration register contains the information how the memory 
access is made (VMID, MTYPE, etc) which should always be consistent.

So instead of a read modify write cycle of the VMID always update the whole 
register.

Signed-off-by: Christian König 
---
  drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
  4 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0a03e2ad5d95..2a6556371046 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -7030,12 +7030,7 @@ static int gfx_v10_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
  
  static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
[yttao]: The orig_val is 0 which means except VMID field other reset fields 
will be set to 0. Whether it is legal?


According to the register specification that is the default value for 
those bits on gfx9/10.


Could only be that the firmware updates the bits to something non 
default, I'm going to double check that on a Vega10.


Regards,
Christian.

  
  	WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c

index b2f10e39eff1..a92486cd038f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct amdgpu_device 
*adev)
  
  static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
  
  	WREG32(mmRLC_SPM_VMID, data);

  }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index fc6c2f2bc76c..44fdda68db98 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5613,12 +5613,7 @@ static void gfx_v8_0_unset_safe_mode(struct 
amdgpu_device *adev)
  
  static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
  
  	WREG32(mmRLC_SPM_VMID, data);

  }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 54eded9a6ac5..b36fbf991313 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4950,12 +4950,7 @@ static int gfx_v9_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
  
  static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)  {

-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
  
  	WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  }

--
2.17.1



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RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Liu, Monk
Christian

Many fields looks not like going to be still  value at all, e.g.:

RLC_SPM_PERF_CNTR   5   0x0 PERF_CNTR that is used by RLC for 
memory transactions

By your change you always set above filed to 0,  is it right ? I really doubt 
it 

Beside: to make SRIOV VF less painful please use NOKIQ version read/write if 
"one vf mode" is detected :

amdgpu_sriov_is_pp_one_vf(adev)


_
Monk Liu|GPU Virtualization Team |AMD


-Original Message-
From: Christian König  
Sent: Tuesday, April 21, 2020 5:10 PM
To: Liu, Monk ; Tao, Yintian ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update

The RLC SPM configuration register contains the information how the memory 
access is made (VMID, MTYPE, etc) which should always be consistent.

So instead of a read modify write cycle of the VMID always update the whole 
register.

Signed-off-by: Christian König 
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
 4 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0a03e2ad5d95..2a6556371046 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -7030,12 +7030,7 @@ static int gfx_v10_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
 
 static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
 
WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git 
a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index b2f10e39eff1..a92486cd038f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct amdgpu_device 
*adev)
 
 static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
 
WREG32(mmRLC_SPM_VMID, data);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index fc6c2f2bc76c..44fdda68db98 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5613,12 +5613,7 @@ static void gfx_v8_0_unset_safe_mode(struct 
amdgpu_device *adev)
 
 static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
 
WREG32(mmRLC_SPM_VMID, data);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 54eded9a6ac5..b36fbf991313 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4950,12 +4950,7 @@ static int gfx_v9_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
 
 static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
 
WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  }
--
2.17.1

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RE: [PATCH] drm/amdgpu: cleanup SPM VMID update

2020-04-21 Thread Tao, Yintian


-Original Message-
From: Christian König  
Sent: 2020年4月21日 17:10
To: Liu, Monk ; Tao, Yintian ; He, Jacob 
; amd-gfx@lists.freedesktop.org
Cc: Gu, Frans 
Subject: [PATCH] drm/amdgpu: cleanup SPM VMID update

The RLC SPM configuration register contains the information how the memory 
access is made (VMID, MTYPE, etc) which should always be consistent.

So instead of a read modify write cycle of the VMID always update the whole 
register.

Signed-off-by: Christian König 
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 7 +--  
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c  | 7 +--
 4 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0a03e2ad5d95..2a6556371046 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -7030,12 +7030,7 @@ static int gfx_v10_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
 
 static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
[yttao]: The orig_val is 0 which means except VMID field other reset fields 
will be set to 0. Whether it is legal?
 
WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  } diff --git 
a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index b2f10e39eff1..a92486cd038f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3570,12 +3570,7 @@ static int gfx_v7_0_rlc_resume(struct amdgpu_device 
*adev)
 
 static void gfx_v7_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
 
WREG32(mmRLC_SPM_VMID, data);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index fc6c2f2bc76c..44fdda68db98 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5613,12 +5613,7 @@ static void gfx_v8_0_unset_safe_mode(struct 
amdgpu_device *adev)
 
 static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32(mmRLC_SPM_VMID);
-
-   data &= ~RLC_SPM_VMID__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_VMID__RLC_SPM_VMID_MASK) << 
RLC_SPM_VMID__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_VMID, RLC_SPM_VMID, vmid);
 
WREG32(mmRLC_SPM_VMID, data);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 54eded9a6ac5..b36fbf991313 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4950,12 +4950,7 @@ static int gfx_v9_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
 
 static void gfx_v9_0_update_spm_vmid(struct amdgpu_device *adev, unsigned 
vmid)  {
-   u32 data;
-
-   data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
-
-   data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
-   data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << 
RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+   u32 data = REG_SET_FIELD(0, RLC_SPM_MC_CNTL, RLC_SPM_VMID, vmid);
 
WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);  }
--
2.17.1

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