nvidiafb: prevent triggering of softlockup

If the chip locks up, we get into a long polling loop,
where the softlockup detector kicks in.
See https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=151878
for an example.

[adaplas]
Chip lockup can occur at 3 points (flush, sync, and wait). Consolidate and
allow the driver to go to safe mode cleanly.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/video/nvidia/nv_local.h b/drivers/video/nvidia/nv_local.h
index e009d242ea10..68e508daa417 100644
--- a/drivers/video/nvidia/nv_local.h
+++ b/drivers/video/nvidia/nv_local.h
@@ -73,9 +73,9 @@
 #define NVDmaNext(par, data) \
      NV_WR32(&(par)->dmaBase[(par)->dmaCurrent++], 0, (data))
 
-#define NVDmaStart(par, tag, size) {          \
+#define NVDmaStart(info, par, tag, size) {    \
      if((par)->dmaFree <= (size))             \
-        NVDmaWait(par, size);                 \
+        NVDmaWait(info, size);                \
      NVDmaNext(par, ((size) << 18) | (tag));  \
      (par)->dmaFree -= ((size) + 1);          \
 }