From: Christian K?nig <christian.koe...@amd.com>
Clear page tables after allocating them in case
we don't completely fill them later.
Signed-off-by: Christian K?nig <christian.koenig at amd.com>
---
drivers/gpu/drm/radeon/radeon_gart.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c
b/drivers/gpu/drm/radeon/radeon_gart.c
index f6947dd..fd109d3 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -995,6 +995,10 @@ retry:
radeon_asic_vm_set_page(rdev, ib, last_pde,
last_pt, count, incr,
R600_PTE_VALID);
+
+ count *= RADEON_VM_PTE_COUNT;
+ radeon_asic_vm_set_page(rdev, ib, last_pt, 0,
+ count, 0, 0);
}
count = 1;
@@ -1009,6 +1013,9 @@ retry:
radeon_asic_vm_set_page(rdev, ib, last_pde, last_pt, count,
incr, R600_PTE_VALID);
+ count *= RADEON_VM_PTE_COUNT;
+ radeon_asic_vm_set_page(rdev, ib, last_pt, 0,
+ count, 0, 0);
}
return 0;
@@ -1170,6 +1177,9 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
/* reserve space for pde addresses */
ndw += npdes * 2;
+ /* reserve space for clearing new page tables */
+ ndw += npdes * 2 * RADEON_VM_PTE_COUNT;
+
/* update too big for an IB */
if (ndw > 0xfffff)
return -ENOMEM;
--
1.8.1.2
