[PATCH 5/6] accel/ivpu/40xx: Fix missing VPUIP interrupts

[Jeffrey Hugo]

On 9/25/2023 6:11 AM, Stanislaw Gruszka wrote:
> From: Karol Wachowski <karol.wachowski at linux.intel.com>
> 
> Move sequence of masking and unmasking global interrupts from buttress
> interrupt handler to generic one that handles both VPUIP and BTRS
> interrupts.
> 
> Unmasking global interrupts will re-trigger MSI for any pending interrupts.
> Lack of this sequence can randomly cause to miss any VPUIP interrupt that
> comes after reading VPU_40XX_HOST_SS_ICB_STATUS_0 and before clearing
> all active interrupt sources.
> 
> Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4")
> Signed-off-by: Karol Wachowski <karol.wachowski at linux.intel.com>
> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka at linux.intel.com>
> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka at linux.intel.com>

Reviewed-by: Jeffrey Hugo <quic_jhugo at quicinc.com>