diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 37dd6449f46f..bcd55917c7cc 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2759,6 +2759,9 @@ int evergreen_irq_process(struct radeon_device *rdev) return IRQ_NONE; } restart_ih: + /* Order reading of wptr vs. reading of IH ring data */ + rmb(); + /* display interrupts */ evergreen_irq_ack(rdev); 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); |