From: Dave Airlie <airlied@xxxxxxxxxx>
My rv515 card is very flaky with msi enabled. Every so often it loses a rearm
and never comes back, manually banging the rearm brings it back.
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_irq_kms.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 66d5fe1..65060b7 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -147,6 +147,12 @@ static bool radeon_msi_ok(struct radeon_device *rdev)
(rdev->pdev->subsystem_device == 0x01fd))
return true;
+ /* RV515 seems to have MSI issues where it loses
+ * MSI rearms occasionally. This leads to lockups and freezes.
+ * disable it by default.
+ */
+ if (rdev->family == CHIP_RV515)
+ return false;
if (rdev->flags & RADEON_IS_IGP) {
/* APUs work fine with MSIs */
if (rdev->family >= CHIP_PALM)
--
1.7.7.6
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