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    Subject[ 67/68] drm/radeon: disable MSI on RV515
    3.2-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    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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