drm/radeon/cayman: set VM max pfn at MC init

No need to emit them at VM flush as we no longer use
variable sized page tables now that we support 2 level
page tables.  This matches the behavior of SI (which
does not support variable sized page tables).

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index ab8d1f5..8c74c72 100644 (file)
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -776,7 +776,7 @@ static int cayman_pcie_gart_enable(struct radeon_device *rdev)
         */
        for (i = 1; i < 8; i++) {
                WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (i << 2), 0);
-               WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), 0);
+               WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), rdev->vm_manager.max_pfn);
                WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
                        rdev->gart.table_addr >> 12);
        }
@@ -1576,12 +1576,6 @@ void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
        if (vm == NULL)
                return;
 
-       radeon_ring_write(ring, PACKET0(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (vm->id << 2), 0));
-       radeon_ring_write(ring, 0);
-
-       radeon_ring_write(ring, PACKET0(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (vm->id << 2), 0));
-       radeon_ring_write(ring, rdev->vm_manager.max_pfn);
-
        radeon_ring_write(ring, PACKET0(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2), 0));
        radeon_ring_write(ring, vm->pd_gpu_addr >> 12);