[PATCH libdrm] amdgpu: add amdgpu_bo_inc_ref() function.

[Yu, Qiang]

Thanks.

Regards,
Qiang

________________________________________
From: Christian König <ckoenig.leichtzumerken at gmail.com>
Sent: Monday, September 3, 2018 4:57:39 PM
To: Yu, Qiang; Zhang, Jerry; amd-gfx at lists.freedesktop.org
Cc: Koenig, Christian; Deng, Hui
Subject: Re: [PATCH libdrm] amdgpu: add amdgpu_bo_inc_ref() function.

Done.

Christian.

Am 03.09.2018 um 10:03 schrieb Yu, Qiang:
> Thanks Jerry.
>
> Hi Christian,
>
> This is an old patch back to 2016 reviewed in hybrid list. If you are OK with it,
> would you please submit it to upstream?
>
> Thanks,
> Qiang
>
> ________________________________________
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Zhang, Jerry (Junwei) <Jerry.Zhang at amd.com>
> Sent: Monday, September 3, 2018 3:18:14 PM
> To: Yu, Qiang; amd-gfx at lists.freedesktop.org
> Cc: Koenig, Christian; Deng, Hui
> Subject: Re: [PATCH libdrm] amdgpu: add amdgpu_bo_inc_ref() function.
>
> On 09/03/2018 02:55 PM, Qiang Yu wrote:
>> For Pro OGL be able to work with upstream libdrm.
>>
>> Signed-off-by: Qiang Yu <Qiang.Yu at amd.com>
>> Reviewed-by: Christian König <christian.koenig at amd.com>
> I'm fine with that, not sure if mesa is going to use that as well.
>
> Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>
>
> Regards,
> Jerry
>
>> ---
>>    amdgpu/amdgpu-symbol-check |  1 +
>>    amdgpu/amdgpu.h            | 15 ++++++++++++++-
>>    amdgpu/amdgpu_bo.c         |  6 ++++++
>>    3 files changed, 21 insertions(+), 1 deletion(-)
>>
>> diff --git a/amdgpu/amdgpu-symbol-check b/amdgpu/amdgpu-symbol-check
>> index b5e4fe6..487610e 100755
>> --- a/amdgpu/amdgpu-symbol-check
>> +++ b/amdgpu/amdgpu-symbol-check
>> @@ -15,6 +15,7 @@ amdgpu_bo_cpu_map
>>    amdgpu_bo_cpu_unmap
>>    amdgpu_bo_export
>>    amdgpu_bo_free
>> +amdgpu_bo_inc_ref
>>    amdgpu_bo_import
>>    amdgpu_bo_list_create
>>    amdgpu_bo_list_destroy
>> diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
>> index a8c353c..e1f93f8 100644
>> --- a/amdgpu/amdgpu.h
>> +++ b/amdgpu/amdgpu.h
>> @@ -721,7 +721,20 @@ int amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
>>    int amdgpu_bo_free(amdgpu_bo_handle buf_handle);
>>
>>    /**
>> - * Request CPU access to GPU accessible memory
>> + * Increase the reference count of a buffer object
>> + *
>> + * \param   bo - \c [in]  Buffer object handle to increase the reference count
>> + *
>> + * \return   0 on success\n
>> + *          <0 - Negative POSIX Error code
>> + *
>> + * \sa amdgpu_bo_alloc(), amdgpu_bo_free()
>> + *
>> +*/
>> +int amdgpu_bo_inc_ref(amdgpu_bo_handle bo);
>> +
>> +/**
>> + * Request CPU access to GPU accessable memory
>>     *
>>     * \param   buf_handle - \c [in] Buffer handle
>>     * \param   cpu        - \c [out] CPU address to be used for access
>> diff --git a/amdgpu/amdgpu_bo.c b/amdgpu/amdgpu_bo.c
>> index a2fc525..dceab01 100644
>> --- a/amdgpu/amdgpu_bo.c
>> +++ b/amdgpu/amdgpu_bo.c
>> @@ -438,6 +438,12 @@ int amdgpu_bo_free(amdgpu_bo_handle buf_handle)
>>        return 0;
>>    }
>>
>> +int amdgpu_bo_inc_ref(amdgpu_bo_handle bo)
>> +{
>> +     atomic_inc(&bo->refcount);
>> +     return 0;
>> +}
>> +
>>    int amdgpu_bo_cpu_map(amdgpu_bo_handle bo, void **cpu)
>>    {
>>        union drm_amdgpu_gem_mmap args;
>>
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