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From:   "Sierra Guiza, Alejandro (Alex)" <Alex.Sierra@amd.com>
To:     Matthew Wilcox <willy@infradead.org>
CC:     "jgg@nvidia.com" <jgg@nvidia.com>,
        "david@redhat.com" <david@redhat.com>,
        "Kuehling, Felix" <Felix.Kuehling@amd.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "rcampbell@nvidia.com" <rcampbell@nvidia.com>,
        "linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
        "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
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        "hch@lst.de" <hch@lst.de>,
        "jglisse@redhat.com" <jglisse@redhat.com>,
        "apopple@nvidia.com" <apopple@nvidia.com>,
        "akpm@linux-foundation.org" <akpm@linux-foundation.org>
Subject: RE: [PATCH] drm/amdkfd: Add SVM API support capability bits
Thread-Topic: [PATCH] drm/amdkfd: Add SVM API support capability bits
Thread-Index: AQHYRHyQ/YsZujGeV0SWTSHGpB4J2KzYcWOAgAAJwAA=
Date:   Wed, 30 Mar 2022 22:04:56 +0000
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References: <20220330212420.12003-1-alex.sierra@amd.com>
 <YkTLoQNBEOlkJ1tV@casper.infradead.org>
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Hi Matthew,
I sent this patch by accident. Please ignore it.

Regards,
Alex Sierra

> -----Original Message-----
> From: Matthew Wilcox <willy@infradead.org>
> Sent: Wednesday, March 30, 2022 4:29 PM
> To: Sierra Guiza, Alejandro (Alex) <Alex.Sierra@amd.com>
> Cc: jgg@nvidia.com; david@redhat.com; Kuehling, Felix
> <Felix.Kuehling@amd.com>; linux-mm@kvack.org; rcampbell@nvidia.com;
> linux-ext4@vger.kernel.org; linux-xfs@vger.kernel.org; amd-
> gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; hch@lst.de;
> jglisse@redhat.com; apopple@nvidia.com; akpm@linux-foundation.org
> Subject: Re: [PATCH] drm/amdkfd: Add SVM API support capability bits
>=20
> On Wed, Mar 30, 2022 at 04:24:20PM -0500, Alex Sierra wrote:
> > From: Philip Yang <Philip.Yang@amd.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.
>=20
> Could you translate this commit message into English?  Reviewing
> Documentation/process/5.Posting.rst might be helpful.