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

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Message-ID: <SN6PR12MB27176C9B277885712B12B428FD1F9@SN6PR12MB2717.namprd12.prod.outlook.com>
Date:   Wed, 30 Mar 2022 22:04:56 +0000
From:   "Sierra Guiza, Alejandro (Alex)" <Alex.Sierra@....com>
To:     Matthew Wilcox <willy@...radead.org>
CC:     "jgg@...dia.com" <jgg@...dia.com>,
        "david@...hat.com" <david@...hat.com>,
        "Kuehling, Felix" <Felix.Kuehling@....com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "rcampbell@...dia.com" <rcampbell@...dia.com>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
        "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "hch@....de" <hch@....de>,
        "jglisse@...hat.com" <jglisse@...hat.com>,
        "apopple@...dia.com" <apopple@...dia.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>
Subject: RE: [PATCH] drm/amdkfd: Add SVM API support capability bits

Hi Matthew,
I sent this patch by accident. Please ignore it.

Regards,
Alex Sierra

> -----Original Message-----
> From: Matthew Wilcox <willy@...radead.org>
> Sent: Wednesday, March 30, 2022 4:29 PM
> To: Sierra Guiza, Alejandro (Alex) <Alex.Sierra@....com>
> Cc: jgg@...dia.com; david@...hat.com; Kuehling, Felix
> <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.