1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc
index 138eeaa28665..7fe9d7cf486b 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/hubnve0.fuc
@@ -44,6 +44,9 @@ chipsets:
 .b8  0xe7 0 0 0
 .b16 #nve4_hub_mmio_head
 .b16 #nve4_hub_mmio_tail
+.b8  0xe6 0 0 0
+.b16 #nve4_hub_mmio_head
+.b16 #nve4_hub_mmio_tail
 .b8  0 0 0 0
 
 nve4_hub_mmio_head:
@@ -680,6 +683,16 @@ ctx_mmio_exec:
 //              on load it means: "a save preceeded this load"
 //
 ctx_xfer:
+        // according to mwk, some kind of wait for idle
+        mov $r15 0xc00
+        shl b32 $r15 6
+        mov $r14 4
+        iowr I[$r15 + 0x200] $r14
+        ctx_xfer_idle:
+                iord $r14 I[$r15 + 0x000]
+                and $r14 0x2000
+                bra ne #ctx_xfer_idle
+
         bra not $p1 #ctx_xfer_pre
         bra $p2 #ctx_xfer_pre_load
         ctx_xfer_pre: