bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-25 18:12:26 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: cleanup creating BOs at fixed location (v2)

Browse Source 
The placement is something TTM/BO internal and the RAS code should
avoid touching that directly.

Add a helper to create a BO at a fixed location and use that instead.

v2: squash in fixes (Alex)

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2019-09-13 13:43:15 +02:00
committed by Alex Deucher
parent db338e1663
commit de7b45babd
4 changed files with 82 additions and 147 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@@ -342,6 +342,67 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
return 0;
}
/**
* amdgpu_bo_create_kernel_at - create BO for kernel use at specific location
*
* @adev: amdgpu device object
* @offset: offset of the BO
* @size: size of the BO
* @domain: where to place it
* @bo_ptr: used to initialize BOs in structures
* @cpu_addr: optional CPU address mapping
*
* Creates a kernel BO at a specific offset in the address space of the domain.
*
* Returns:
* 0 on success, negative error code otherwise.
*/
int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
uint64_t offset, uint64_t size, uint32_t domain,
struct amdgpu_bo **bo_ptr, void **cpu_addr)
{
struct ttm_operation_ctx ctx = { false, false };
unsigned int i;
int r;
offset &= PAGE_MASK;
size = ALIGN(size, PAGE_SIZE);
r = amdgpu_bo_create_reserved(adev, size, PAGE_SIZE, domain, bo_ptr,
NULL, NULL);
if (r)
return r;
/*
* Remove the original mem node and create a new one at the request
* position.
*/
for (i = 0; i < (*bo_ptr)->placement.num_placement; ++i) {
(*bo_ptr)->placements[i].fpfn = offset >> PAGE_SHIFT;
(*bo_ptr)->placements[i].lpfn = (offset + size) >> PAGE_SHIFT;
}
ttm_bo_mem_put(&(*bo_ptr)->tbo, &(*bo_ptr)->tbo.mem);
r = ttm_bo_mem_space(&(*bo_ptr)->tbo, &(*bo_ptr)->placement,
&(*bo_ptr)->tbo.mem, &ctx);
if (r)
goto error;
if (cpu_addr) {
r = amdgpu_bo_kmap(*bo_ptr, cpu_addr);
if (r)
goto error;
}
amdgpu_bo_unreserve(*bo_ptr);
return 0;
error:
amdgpu_bo_unreserve(*bo_ptr);
amdgpu_bo_unref(bo_ptr);
return r;
}
/**
* amdgpu_bo_free_kernel - free BO for kernel use
*