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authorAlex Deucher <alexander.deucher@amd.com>2012-10-08 09:45:46 -0400
committerAlex Deucher <alexander.deucher@amd.com>2012-10-15 13:21:00 -0400
commit23d4f1f246a98dde1dc485e0be9a647126630347 (patch)
treec437e633496807489290e51646cf2325f431333a /drivers/gpu/drm/radeon/ni.c
parent29dbe3bcd2e28e71823febdca989d63d5c27d152 (diff)
drm/radeon: update comments to clarify VM setup (v2)
The actual set up and assignment of VM page tables is done on the fly in radeon_gart.c. v2: update vm size comments Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/ni.c')
-rw-r--r--drivers/gpu/drm/radeon/ni.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 8bcb554ea0c..83dc0852d5c 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -770,6 +770,10 @@ static int cayman_pcie_gart_enable(struct radeon_device *rdev)
WREG32(0x15DC, 0);
/* empty context1-7 */
+ /* Assign the pt base to something valid for now; the pts used for
+ * the VMs are determined by the application and setup and assigned
+ * on the fly in the vm part of radeon_gart.c
+ */
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);