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drm/radeon: document async VM changes in ni.c 

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2012-08-31 13:51:21 -04:00
parent 2a6f1abbb4
commit 7a083293c1
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/radeon/ni.c
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@ -1517,6 +1517,13 @@ uint32_t cayman_vm_page_flags(struct radeon_device *rdev, uint32_t flags)
return r600_flags; return r600_flags;
} }
/**
* cayman_vm_set_page - update the page tables using the CP
*
* @rdev: radeon_device pointer
*
* Update the page tables using the CP (cayman-si).
*/
void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm, void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
unsigned pfn, struct ttm_mem_reg *mem, unsigned pfn, struct ttm_mem_reg *mem,
unsigned npages, uint32_t flags) unsigned npages, uint32_t flags)
@ -1541,6 +1548,14 @@ void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
} }
} }
/**
* cayman_vm_flush - vm flush using the CP
*
* @rdev: radeon_device pointer
*
* Update the page table base and flush the VM TLB
* using the CP (cayman-si).
*/
void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib) void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib)
{ {
struct radeon_ring *ring = &rdev->ring[ib->ring]; struct radeon_ring *ring = &rdev->ring[ib->ring];