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Date:   Tue, 31 Oct 2023 12:53:44 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Cc:     stable@vger.kernel.org,
        Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>,
        Karol Wachowski <karol.wachowski@linux.intel.com>
Subject: Re: [PATCH 6.5] accel/ivpu/37xx: Fix missing VPUIP interrupts
Message-ID: <2023103135-tattoo-feminize-9cff@gregkh>
References: <20231028175320.6791-1-stanislaw.gruszka@linux.intel.com>
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On Sat, Oct 28, 2023 at 07:53:20PM +0200, Stanislaw Gruszka wrote:
> From: Karol Wachowski <karol.wachowski@linux.intel.com>
> 
> commit b132ac51d7a50c37683be56c96ff64f8c887930f upstream.
> 
> 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 will cause the driver to miss any
> VPUIP interrupt that comes after reading VPU_37XX_HOST_SS_ICB_STATUS_0
> and before clearing all active interrupt sources.
> 
> Fixes: 35b137630f08 ("accel/ivpu: Introduce a new DRM driver for Intel VPU")
> Cc: stable@vger.kernel.org
> Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/20231024161952.759914-1-stanislaw.gruszka@linux.intel.com
> ---
>  drivers/accel/ivpu/ivpu_hw_mtl.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 

Now queued up, thanks.

greg k-h