linux-kernel - Re: [Intel-gfx] [PATCH 08/20] drm/i915/gsc: add slow

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Message-ID: <d0591904-d6dc-1f9a-f710-ee4e64d9a738@intel.com>
Date:   Mon, 11 Apr 2022 14:34:06 -0700
From:   "Ceraolo Spurio, Daniele" <daniele.ceraolospurio@...el.com>
To:     Alexander Usyskin <alexander.usyskin@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>
CC:     <linux-kernel@...r.kernel.org>,
        Tomas Winkler <tomas.winkler@...el.com>,
        Vitaly Lubart <vitaly.lubart@...el.com>,
        <intel-gfx@...ts.freedesktop.org>
Subject: Re: [Intel-gfx] [PATCH 08/20] drm/i915/gsc: add slow_fw flag to the
 mei auxiliary device



On 4/7/2022 5:58 AM, Alexander Usyskin wrote:
> Add slow_fw flag to the mei auxiliary device info
> to inform the mei driver about slow underlying firmware.
> Such firmware will require to use larger operation timeouts.
>
> Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>
> Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>

Might be worth squashing this in one of the patches that makes use of 
it, but I can see the benefit of having the interface added in a patch 
that's neither mei nor i915.

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>

> ---
>   include/linux/mei_aux.h | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/include/linux/mei_aux.h b/include/linux/mei_aux.h
> index 587f25128848..a29f4064b9c0 100644
> --- a/include/linux/mei_aux.h
> +++ b/include/linux/mei_aux.h
> @@ -11,6 +11,7 @@ struct mei_aux_device {
>   	struct auxiliary_device aux_dev;
>   	int irq;
>   	struct resource bar;
> +	bool slow_fw;
>   };
>   
>   #define auxiliary_dev_to_mei_aux_dev(auxiliary_dev) \