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drm/radeon: move IB pool to 1MB offset

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Even GPUs can have a null pointer dereference, so move
the IB pool to another offset to catch those.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
This commit is contained in:
Christian König
2012-09-11 16:09:59 +02:00
committed by Alex Deucher
parent 96a5844f90
commit ca19f21ece
3 changed files with 5 additions and 4 deletions
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2
drivers/gpu/drm/radeon/radeon_gart.c
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@@ -980,7 +980,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
/* map the ib pool buffer at 0 in virtual address space, set
* read only
*/
r = radeon_vm_bo_add(rdev, vm, rdev->ring_tmp_bo.bo, 0,
r = radeon_vm_bo_add(rdev, vm, rdev->ring_tmp_bo.bo, RADEON_VA_IB_OFFSET,
RADEON_VM_PAGE_READABLE | RADEON_VM_PAGE_SNOOPED);
return r;
}