linux-ext4 - Re: [PATCH] drm/amdkfd: Add SVM API support capability bits

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Message-ID: <YkTLoQNBEOlkJ1tV@casper.infradead.org>
Date:   Wed, 30 Mar 2022 22:29:05 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Alex Sierra <alex.sierra@....com>
Cc:     jgg@...dia.com, david@...hat.com, Felix.Kuehling@....com,
        linux-mm@...ck.org, rcampbell@...dia.com,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        hch@....de, jglisse@...hat.com, apopple@...dia.com,
        akpm@...ux-foundation.org
Subject: Re: [PATCH] drm/amdkfd: Add SVM API support capability bits

On Wed, Mar 30, 2022 at 04:24:20PM -0500, Alex Sierra wrote:
> From: Philip Yang <Philip.Yang@....com>
> 
> SVMAPISupported property added to HSA_CAPABILITY, the value match
> HSA_CAPABILITY defined in Thunk spec:
> 
> SVMAPISupported: it will not be supported on older kernels that don't
> have HMM or on systems with GFXv8 or older GPUs without support for
> 48-bit virtual addresses.
> 
> CoherentHostAccess property added to HSA_MEMORYPROPERTY, the value match
> HSA_MEMORYPROPERTY defined in Thunk spec:
> 
> CoherentHostAccess: whether or not device memory can be coherently
> accessed by the host CPU.

Could you translate this commit message into English?  Reviewing
Documentation/process/5.Posting.rst might be helpful.