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Diffstat (limited to 'drivers/gpu/drm/radeon/r600.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index f56e65579835..aa5571b73aa0 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3318,6 +3318,9 @@ int r600_irq_process(struct radeon_device *rdev) } restart_ih: + /* Order reading of wptr vs. reading of IH ring data */ + rmb(); + /* display interrupts */ r600_irq_ack(rdev); |