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amdgpu: add amdgpu_bo_inc_ref() function. 

For Pro OGL be able to work with upstream libdrm.

Signed-off-by: Qiang Yu <Qiang.Yu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
main
Qiang Yu 2018-09-03 14:55:09 +08:00 committed by Christian König
parent f177251088
commit 937d62ea69
3 changed files with 21 additions and 1 deletions
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1
amdgpu/amdgpu-symbol-check
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@ -15,6 +15,7 @@ amdgpu_bo_cpu_map
amdgpu_bo_cpu_unmap amdgpu_bo_cpu_unmap
amdgpu_bo_export amdgpu_bo_export
amdgpu_bo_free amdgpu_bo_free
amdgpu_bo_inc_ref
amdgpu_bo_import amdgpu_bo_import
amdgpu_bo_list_create amdgpu_bo_list_create
amdgpu_bo_list_destroy amdgpu_bo_list_destroy

15
amdgpu/amdgpu.h
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@ -721,7 +721,20 @@ int amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
int amdgpu_bo_free(amdgpu_bo_handle buf_handle); 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 buf_handle - \c [in] Buffer handle
* \param cpu - \c [out] CPU address to be used for access * \param cpu - \c [out] CPU address to be used for access

6
amdgpu/amdgpu_bo.c
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@ -438,6 +438,12 @@ int amdgpu_bo_free(amdgpu_bo_handle buf_handle)
return 0; 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) int amdgpu_bo_cpu_map(amdgpu_bo_handle bo, void **cpu)
{ {
union drm_amdgpu_gem_mmap args; union drm_amdgpu_gem_mmap args;