drm,io-mapping: Specify slot to use for atomic mappings

This is required should we ever attempt to use an io-mapping where
KM_USER0 is verboten, such as inside an IRQ context.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index f26ec2f27d36..d39aea24eabe 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -185,7 +185,8 @@ static struct overlay_registers *intel_overlay_map_regs_atomic(struct intel_over
 
         if (OVERLAY_NONPHYSICAL(overlay->dev)) {
                 regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
-                                overlay->reg_bo->gtt_offset);
+                                                overlay->reg_bo->gtt_offset,
+                                                KM_USER0);
 
                 if (!regs) {
                         DRM_ERROR("failed to map overlay regs in GTT\n");
@@ -200,7 +201,7 @@ static struct overlay_registers *intel_overlay_map_regs_atomic(struct intel_over
 static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
 {
         if (OVERLAY_NONPHYSICAL(overlay->dev))
-                io_mapping_unmap_atomic(overlay->virt_addr);
+                io_mapping_unmap_atomic(overlay->virt_addr, KM_USER0);
 
         overlay->virt_addr = NULL;