Messages in this thread Patch in this message | | | Date | Thu, 19 Apr 2012 14:09:25 -0700 | From | Greg KH <> | Subject | [ 67/68] drm/radeon: disable MSI on RV515 |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Dave Airlie <airlied@redhat.com>
commit 16a5e32b83fd946312b9b13590c75d20c95c5202 upstream.
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.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/radeon/radeon_irq_kms.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -143,6 +143,12 @@ static bool radeon_msi_ok(struct radeon_ (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)
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