From: Christian König <christian.koenig@xxxxxxx>
Only invalidating PTEs needs to be executed synchronized to using the PT.
v2: fix sync to uses
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon_vm.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index 470451c..0b10f3a 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -820,7 +820,7 @@ static void radeon_vm_update_ptes(struct radeon_device *rdev,
unsigned nptes;
uint64_t pte;
- radeon_sync_resv(rdev, &ib->sync, pt->tbo.resv, false);
+ radeon_sync_resv(rdev, &ib->sync, pt->tbo.resv, true);
if ((addr & ~mask) == (end & ~mask))
nptes = end - addr;
@@ -980,6 +980,13 @@ int radeon_vm_bo_update(struct radeon_device *rdev,
return r;
ib.length_dw = 0;
+ if (!(bo_va->flags & RADEON_VM_PAGE_VALID)) {
+ unsigned i;
+
+ for (i = 0; i < RADEON_NUM_RINGS; ++i)
+ radeon_sync_fence(&ib.sync, vm->ids[i].last_id_use);
+ }
+
radeon_vm_update_ptes(rdev, vm, &ib, bo_va->it.start,
bo_va->it.last + 1, addr,
radeon_vm_page_flags(bo_va->flags));
--
1.9.1
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