From: Marc Zyngier <marc.zyngier@arm.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Ingo Molnar <mingo@redhat.com>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
Yijing Wang <wangyijing@huawei.com>,
Yingjoe Chen <yingjoe.chen@mediatek.com>,
Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Tony Luck <tony.luck@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [Patch V1 0/6] Refine generic/PCI MSI irqodmian interfaces
Date: Thu, 13 Nov 2014 21:28:30 +0000 [thread overview]
Message-ID: <5465227E.6000309@arm.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1411132207470.3935@nanos>
On 13/11/14 21:11, Thomas Gleixner wrote:
> On Thu, 13 Nov 2014, Marc Zyngier wrote:
>> With the new stacked irq domains, it becomes pretty tempting
>> to allocate an MSI domain per PCI bus, which would remove
>> the requirement of either relying on arch-specific code, or
>> a default PCI MSI domain.
>
> Right. That's what I roughly had in mind. And that would solve the
> multi-iommu issue on x86 nicely as well. We establish the association
> at the time where the bus gets populated. So the whole lookup magic
> simply goes away.
Great. I've pushed the whole thing out with this patch, the couple
of fixes I mentioned earlier, as well as the whole ITS code:
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git irq/stacked-its-v2
Time to go home.
M.
--
Jazz is not dead. It just smells funny...
WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [Patch V1 0/6] Refine generic/PCI MSI irqodmian interfaces
Date: Thu, 13 Nov 2014 21:28:30 +0000 [thread overview]
Message-ID: <5465227E.6000309@arm.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1411132207470.3935@nanos>
On 13/11/14 21:11, Thomas Gleixner wrote:
> On Thu, 13 Nov 2014, Marc Zyngier wrote:
>> With the new stacked irq domains, it becomes pretty tempting
>> to allocate an MSI domain per PCI bus, which would remove
>> the requirement of either relying on arch-specific code, or
>> a default PCI MSI domain.
>
> Right. That's what I roughly had in mind. And that would solve the
> multi-iommu issue on x86 nicely as well. We establish the association
> at the time where the bus gets populated. So the whole lookup magic
> simply goes away.
Great. I've pushed the whole thing out with this patch, the couple
of fixes I mentioned earlier, as well as the whole ITS code:
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git irq/stacked-its-v2
Time to go home.
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2014-11-13 21:28 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-13 11:43 [Patch V1 0/6] Refine generic/PCI MSI irqodmian interfaces Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 11:43 ` [Patch V1 1/6] PCI, MSI: Fix errors caused by commit e5f1a59c4e12 Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 11:43 ` [Patch V1 2/6] PCI, MSI: Introduce helpers to hide struct msi_desc implemenation details Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 11:43 ` [Patch V1 3/6] genirq: Introduce msi_domain_{alloc|free}_irqs() Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 20:23 ` Marc Zyngier
2014-11-13 20:23 ` Marc Zyngier
2014-11-14 0:18 ` Jiang Liu
2014-11-14 0:18 ` Jiang Liu
2014-11-13 11:43 ` [Patch V1 3/6] genirq: Introduce msi_irq_domain_{alloc|free}_irqs() Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 12:34 ` Yijing Wang
2014-11-13 12:34 ` Yijing Wang
2014-11-13 12:41 ` Jiang Liu
2014-11-13 12:41 ` Jiang Liu
2014-11-13 12:57 ` Yijing Wang
2014-11-13 12:57 ` Yijing Wang
2014-11-13 11:43 ` [Patch V1 4/6] genirq: Provide default callbacks for msi_domain_ops Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 11:43 ` [Patch V1 5/6] PCI, MSI: Refine irqdomain interfaces to simplify its usage Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 11:43 ` [Patch V1 6/6] PCI, MSI: Provide mechanism to alloc/free MSI/MSIX interrupt from irqdomain Jiang Liu
2014-11-13 11:43 ` Jiang Liu
2014-11-13 19:46 ` Marc Zyngier
2014-11-13 19:46 ` Marc Zyngier
2014-11-13 12:28 ` [Patch V1 0/6] Refine generic/PCI MSI irqodmian interfaces Yijing Wang
2014-11-13 12:28 ` Yijing Wang
2014-11-13 12:39 ` Jiang Liu
2014-11-13 12:39 ` Jiang Liu
2014-11-13 12:55 ` Yijing Wang
2014-11-13 12:55 ` Yijing Wang
2014-11-13 13:03 ` Jiang Liu
2014-11-13 13:03 ` Jiang Liu
2014-11-13 13:05 ` Jiang Liu
2014-11-13 13:05 ` Jiang Liu
2014-11-13 21:00 ` Marc Zyngier
2014-11-13 21:00 ` Marc Zyngier
2014-11-13 21:11 ` Thomas Gleixner
2014-11-13 21:11 ` Thomas Gleixner
2014-11-13 21:28 ` Marc Zyngier [this message]
2014-11-13 21:28 ` Marc Zyngier
2014-11-14 15:54 ` Jiang Liu
2014-11-14 15:54 ` Jiang Liu
2014-11-14 16:13 ` Marc Zyngier
2014-11-14 16:13 ` Marc Zyngier
2014-11-14 0:25 ` Jiang Liu
2014-11-14 0:25 ` Jiang Liu
2014-11-14 1:09 ` Yijing Wang
2014-11-14 1:09 ` Yijing Wang
2014-11-14 1:22 ` Jiang Liu
2014-11-14 1:22 ` Jiang Liu
2014-11-14 1:31 ` Thomas Gleixner
2014-11-14 1:31 ` Thomas Gleixner
2014-11-14 1:39 ` Jiang Liu
2014-11-14 1:39 ` Jiang Liu
2014-11-14 12:13 ` Thomas Gleixner
2014-11-14 12:13 ` Thomas Gleixner
2014-11-14 14:11 ` Yijing Wang
2014-11-14 14:11 ` Yijing Wang
2014-11-14 14:26 ` Jiang Liu
2014-11-14 14:26 ` Jiang Liu
2014-11-14 15:16 ` Marc Zyngier
2014-11-14 15:16 ` Marc Zyngier
2014-11-14 15:25 ` Jiang Liu
2014-11-14 15:25 ` Jiang Liu
2014-11-14 16:03 ` Marc Zyngier
2014-11-14 16:03 ` Marc Zyngier
2014-11-14 17:11 ` Lucas Stach
2014-11-14 17:11 ` Lucas Stach
2014-11-14 2:16 ` Yijing Wang
2014-11-14 2:16 ` Yijing Wang
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