From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jacob Pan <jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Subject: Re: [PATCH v3 05/16] iommu/vt-d: support flushing more TLB types
Date: Mon, 20 Nov 2017 10:40:19 -0800
Message-ID: <20171120104019.585dec0e@jacob-builder>
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To: "Lukoshkov, Maksim" <maksim.lukoshkov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: "Lan, Tianyu" <tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Yi L <yi.l.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>, "Liu-i9wRM+HIrmnmtl4Z8vJ8Kg761KYD1DLY@public.gmane.org" <Liu-i9wRM+HIrmnmtl4Z8vJ8Kg761KYD1DLY@public.gmane.org>, Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>, "Wysocki,
	Rafael J" <rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" <iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>, Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>, David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
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On Mon, 20 Nov 2017 14:20:31 +0000
"Lukoshkov, Maksim" <maksim.lukoshkov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:

> On 11/17/2017 18:55, Jacob Pan wrote:
> > +void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16
> > pfsid,
> > +			u16 qdep, u64 addr, unsigned mask)
> > +{
> > +	struct qi_desc desc;
> > +
> > +	pr_debug_ratelimited("%s: sid %d, pfsid %d, qdep %d, addr
> > %llx, mask %d\n",
> > +		__func__, sid, pfsid, qdep, addr, mask);
> >   	if (mask) {
> >   		BUG_ON(addr & ((1 << (VTD_PAGE_SHIFT + mask)) -
> > 1)); addr |= (1ULL << (VTD_PAGE_SHIFT + mask - 1)) - 1;
> > @@ -1352,7 +1366,41 @@ void qi_flush_dev_iotlb(struct intel_iommu
> > *iommu, u16 sid, u16 qdep, qdep = 0;
> >   
> >   	desc.low = QI_DEV_IOTLB_SID(sid) |
> > QI_DEV_IOTLB_QDEP(qdep) |
> > -		   QI_DIOTLB_TYPE;
> > +		   QI_DIOTLB_TYPE | QI_DEV_IOTLB_SID(pfsid);  
> 
> QI_DEV_IOTLB_SID(pfsid) -> QI_DEV_EIOTLB_PFSID(pfsid)?
> 
good catch! thank you.
> > +
> > +	qi_submit_sync(&desc, iommu);
> > +}
> > +  
> 
> Regards,
> Maksim Lukoshkov

[Jacob Pan]