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* [PATCH] drm/amdgpu: Fix size calculation when init onchip memory
@ 2020-10-23  5:41 xinhui pan
  2020-10-23  7:12 ` Christian König
  0 siblings, 1 reply; 4+ messages in thread
From: xinhui pan @ 2020-10-23  5:41 UTC (permalink / raw)
  To: amd-gfx; +Cc: alexander.deucher, xinhui pan, christian.koenig, Guchun.Chen

Size is page count here.

Signed-off-by: xinhui pan <xinhui.pan@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 4a85f8cedd77..11dd3d9eac15 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -65,11 +65,11 @@
 
 static int amdgpu_ttm_init_on_chip(struct amdgpu_device *adev,
 				    unsigned int type,
-				    uint64_t size)
+				    uint64_t size_in_page)
 {
 	return ttm_range_man_init(&adev->mman.bdev, type,
 				  TTM_PL_FLAG_UNCACHED, TTM_PL_FLAG_UNCACHED,
-				  false, size >> PAGE_SHIFT);
+				  false, size_in_page);
 }
 
 /**
-- 
2.25.1

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^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH] drm/amdgpu: Fix size calculation when init onchip memory
  2020-10-23  5:41 [PATCH] drm/amdgpu: Fix size calculation when init onchip memory xinhui pan
@ 2020-10-23  7:12 ` Christian König
  2020-10-23 23:19   ` Luben Tuikov
  0 siblings, 1 reply; 4+ messages in thread
From: Christian König @ 2020-10-23  7:12 UTC (permalink / raw)
  To: xinhui pan, amd-gfx; +Cc: alexander.deucher, Guchun.Chen

Am 23.10.20 um 07:41 schrieb xinhui pan:
> Size is page count here.
>
> Signed-off-by: xinhui pan <xinhui.pan@amd.com>

Ah yes that one again. At some point we really need to clean that up.

Patch is Reviewed-by: Christian König <christian.koenig@amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 4a85f8cedd77..11dd3d9eac15 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -65,11 +65,11 @@
>   
>   static int amdgpu_ttm_init_on_chip(struct amdgpu_device *adev,
>   				    unsigned int type,
> -				    uint64_t size)
> +				    uint64_t size_in_page)
>   {
>   	return ttm_range_man_init(&adev->mman.bdev, type,
>   				  TTM_PL_FLAG_UNCACHED, TTM_PL_FLAG_UNCACHED,
> -				  false, size >> PAGE_SHIFT);
> +				  false, size_in_page);
>   }
>   
>   /**

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] drm/amdgpu: Fix size calculation when init onchip memory
  2020-10-23  7:12 ` Christian König
@ 2020-10-23 23:19   ` Luben Tuikov
  2020-10-26  7:49     ` Christian König
  0 siblings, 1 reply; 4+ messages in thread
From: Luben Tuikov @ 2020-10-23 23:19 UTC (permalink / raw)
  To: Christian König, xinhui pan, amd-gfx; +Cc: alexander.deucher, Guchun.Chen

On 2020-10-23 03:12, Christian König wrote:
> Am 23.10.20 um 07:41 schrieb xinhui pan:
>> Size is page count here.
>>
>> Signed-off-by: xinhui pan <xinhui.pan@amd.com>
> 
> Ah yes that one again. At some point we really need to clean that up.
> 
> Patch is Reviewed-by: Christian König <christian.koenig@amd.com>
> 
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> index 4a85f8cedd77..11dd3d9eac15 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> @@ -65,11 +65,11 @@
>>   
>>   static int amdgpu_ttm_init_on_chip(struct amdgpu_device *adev,
>>   				    unsigned int type,
>> -				    uint64_t size)
>> +				    uint64_t size_in_page)
>>   {
>>   	return ttm_range_man_init(&adev->mman.bdev, type,
>>   				  TTM_PL_FLAG_UNCACHED, TTM_PL_FLAG_UNCACHED,
>> -				  false, size >> PAGE_SHIFT);
>> +				  false, size_in_page);

Why don't we call this "page_count" or "num_pages"?
"size_in_page" is really confusing and not something people
say and use in English.

Regards,
Luben

>>   }
>>   
>>   /**
> 
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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] drm/amdgpu: Fix size calculation when init onchip memory
  2020-10-23 23:19   ` Luben Tuikov
@ 2020-10-26  7:49     ` Christian König
  0 siblings, 0 replies; 4+ messages in thread
From: Christian König @ 2020-10-26  7:49 UTC (permalink / raw)
  To: Luben Tuikov, xinhui pan, amd-gfx; +Cc: alexander.deucher, Guchun.Chen

Am 24.10.20 um 01:19 schrieb Luben Tuikov:
> On 2020-10-23 03:12, Christian König wrote:
>> Am 23.10.20 um 07:41 schrieb xinhui pan:
>>> Size is page count here.
>>>
>>> Signed-off-by: xinhui pan <xinhui.pan@amd.com>
>> Ah yes that one again. At some point we really need to clean that up.
>>
>> Patch is Reviewed-by: Christian König <christian.koenig@amd.com>
>>
>>> ---
>>>    drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
>>>    1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>>> index 4a85f8cedd77..11dd3d9eac15 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>>> @@ -65,11 +65,11 @@
>>>    
>>>    static int amdgpu_ttm_init_on_chip(struct amdgpu_device *adev,
>>>    				    unsigned int type,
>>> -				    uint64_t size)
>>> +				    uint64_t size_in_page)
>>>    {
>>>    	return ttm_range_man_init(&adev->mman.bdev, type,
>>>    				  TTM_PL_FLAG_UNCACHED, TTM_PL_FLAG_UNCACHED,
>>> -				  false, size >> PAGE_SHIFT);
>>> +				  false, size_in_page);
> Why don't we call this "page_count" or "num_pages"?
> "size_in_page" is really confusing and not something people
> say and use in English.

Thinking more about it it would even better if we just stick with size, 
cause this is a size in arbitrary units (and NOT pages!).

It's just TTM which misinterprets that as number of pages which is 
something Dave and I are trying to fix right now.

Regards,
Christian.

>
> Regards,
> Luben
>
>>>    }
>>>    
>>>    /**
>> _______________________________________________
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>> amd-gfx@lists.freedesktop.org
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>>

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^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-10-26  7:49 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-23  5:41 [PATCH] drm/amdgpu: Fix size calculation when init onchip memory xinhui pan
2020-10-23  7:12 ` Christian König
2020-10-23 23:19   ` Luben Tuikov
2020-10-26  7:49     ` Christian König

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