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Date:   Fri, 13 Oct 2023 12:35:08 +0200
From:   Andi Shyti <andi.shyti@linux.intel.com>
To:     Nirmoy Das <nirmoy.das@intel.com>
Cc:     intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Jonathan Cavitt <jonathan.cavitt@intel.com>,
        John Harrison <john.c.harrison@intel.com>,
        Andi Shyti <andi.shyti@linux.intel.com>,
        stable@vger.kernel.org, Matt Roper <matthew.d.roper@intel.com>
Subject: Re: [PATCH] drm/i915: Flush WC GGTT only on required platforms
Message-ID: <ZSkdXLTqGY0z/PCI@ashyti-mobl2.lan>
References: <20231013103140.12192-1-nirmoy.das@intel.com>
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Hi Nirmoy,

On Fri, Oct 13, 2023 at 12:31:40PM +0200, Nirmoy Das wrote:
> gen8_ggtt_invalidate() is only needed for limitted set of platforms

/limitted/limited/

> where GGTT is mapped as WC otherwise this can cause unwanted
> side-effects on XE_HP platforms where GFX_FLSH_CNTL_GEN6 is not
> valid.
> 
> Fixes: d2eae8e98d59 ("drm/i915/dg2: Drop force_probe requirement")
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
> Cc: John Harrison <john.c.harrison@intel.com>
> Cc: Andi Shyti <andi.shyti@linux.intel.com>
> Cc: <stable@vger.kernel.org> # v6.2+
> Suggested-by: Matt Roper <matthew.d.roper@intel.com>
> Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>

Acked-by: Andi Shyti <andi.shyti@linux.intel.com> 

Andi