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Date:   Wed, 23 Sep 2020 15:41:17 +0200
From:   Christoph Hellwig <>
To:     Tvrtko Ursulin <>
Cc:     Christoph Hellwig <>,
        Andrew Morton <>,
        Juergen Gross <>,
        Stefano Stabellini <>,, Peter Zijlstra <>,,,, Minchan Kim <>,,,
        Boris Ostrovsky <>,
        Nitin Gupta <>
Subject: Re: [Intel-gfx] [PATCH 4/6] drm/i915: use vmap in

On Wed, Sep 23, 2020 at 10:52:33AM +0100, Tvrtko Ursulin wrote:
> On 18/09/2020 17:37, Christoph Hellwig wrote:
>> i915_gem_object_map implements fairly low-level vmap functionality in
>> a driver.  Split it into two helpers, one for remapping kernel memory
>> which can use vmap, and one for I/O memory that uses vmap_pfn.
>> The only practical difference is that alloc_vm_area prefeaults the
>> vmalloc area PTEs, which doesn't seem to be required here for the
>> kernel memory case (and could be added to vmap using a flag if actually
>> required).
> Patch looks good to me.
> Series did not get a CI run from our side because of a different base so I 
> don't know if you would like to have a run there? If so you would need to 
> rebase against git:// drm-tip and you could 
> even send a series to, suppressing 
> cc, to check it out without sending a copy to the real mailing list.

It doesn't seem like I can post to any freedesktop list, as I always
get rejection messages.  But I'll happily prepare a branch if one
of you an feed it into your CI.

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