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Message-ID: <ZpjEmNbDvm7WTUKr@hovoldconsulting.com>
Date: Thu, 18 Jul 2024 09:30:32 +0200
From: Johan Hovold <johan@...nel.org>
To: Marc Zyngier <maz@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
	anna-maria@...utronix.de, shawnguo@...nel.org,
	s.hauer@...gutronix.de, festevam@...il.com, bhelgaas@...gle.com,
	rdunlap@...radead.org, vidyas@...dia.com,
	ilpo.jarvinen@...ux.intel.com, apatel@...tanamicro.com,
	kevin.tian@...el.com, nipun.gupta@....com, den@...inux.co.jp,
	andrew@...n.ch, gregory.clement@...tlin.com,
	sebastian.hesselbarth@...il.com, gregkh@...uxfoundation.org,
	rafael@...nel.org, alex.williamson@...hat.com, will@...nel.org,
	lorenzo.pieralisi@....com, jgg@...lanox.com,
	ammarfaizi2@...weeb.org, robin.murphy@....com,
	lpieralisi@...nel.org, nm@...com, kristo@...nel.org,
	vkoul@...nel.org, okaya@...nel.org, agross@...nel.org,
	andersson@...nel.org, mark.rutland@....com,
	shameerali.kolothum.thodi@...wei.com, yuzenghui@...wei.com
Subject: Re: [patch V4 00/21] genirq, irqchip: Convert ARM MSI handling to
 per device MSI domains

On Wed, Jul 17, 2024 at 09:10:02PM +0100, Marc Zyngier wrote:

> I think I've finally nailed the sucker, and posted a potential fix[1].
> 
> It definitely restore my TX1 to a state that is no worse than normal,
> so something must be less wrong there.  I'm pretty sure that the
> platform-msi equivalent is equally broken, but I don't have the energy
> to verify/debug that tonight.

> [1] https://lore.kernel.org/r/20240717195937.2240400-1-maz@kernel.org

This seems to fix the regression here too, thanks!

201:          0       ...         0  ITS-PCI-MSI-0006:00:00.0   0 Edge      PCIe PME, aerdrv
202:          0                   0  ITS-PCI-MSI-0006:01:00.0   0 Edge      bhi
203:          0                   0  ITS-PCI-MSI-0006:01:00.0   1 Edge      mhi
204:          0                   0  ITS-PCI-MSI-0006:01:00.0   2 Edge      mhi
205:          0                   0  ITS-PCI-MSI-0006:01:00.0   3 Edge      ce0
206:          0                   0  ITS-PCI-MSI-0006:01:00.0   4 Edge      ce1
207:          0                   0  ITS-PCI-MSI-0006:01:00.0   5 Edge      ce2
208:          0                   2  ITS-PCI-MSI-0006:01:00.0   6 Edge      ce3
209:          2                   0  ITS-PCI-MSI-0006:01:00.0   7 Edge      ce5
210:          0                   0  ITS-PCI-MSI-0006:01:00.0   8 Edge      ce7
211:          0                   0  ITS-PCI-MSI-0006:01:00.0   9 Edge      ce8
216:          0                   0  ITS-PCI-MSI-0006:01:00.0  14 Edge      DP_EXT_IRQ
217:          0                   0  ITS-PCI-MSI-0006:01:00.0  15 Edge      DP_EXT_IRQ
218:          0                   0  ITS-PCI-MSI-0006:01:00.0  16 Edge      DP_EXT_IRQ
220:          0                   0  ITS-PCI-MSI-0006:01:00.0  18 Edge      DP_EXT_IRQ
221:          0                   0  ITS-PCI-MSI-0006:01:00.0  19 Edge      DP_EXT_IRQ
222:          0                   0  ITS-PCI-MSI-0006:01:00.0  20 Edge      DP_EXT_IRQ
223:          0                   0  ITS-PCI-MSI-0006:01:00.0  21 Edge      DP_EXT_IRQ
224:          0                   0  ITS-PCI-MSI-0006:01:00.0  22 Edge      DP_EXT_IRQ
225:          0                   0  ITS-PCI-MSI-0006:01:00.0  23 Edge      DP_EXT_IRQ
226:          0                   0  ITS-PCI-MSI-0006:01:00.0  24 Edge      DP_EXT_IRQ
235:          0                   0  ITS-PCI-MSI-0004:00:00.0   0 Edge      PCIe PME, aerdrv
236:          0                   0  ITS-PCI-MSI-0004:01:00.0   0 Edge      bhi
237:          0                   0  ITS-PCI-MSI-0004:01:00.0   1 Edge      mhi
238:          0                   0  ITS-PCI-MSI-0004:01:00.0   2 Edge      mhi
239:          0                   0  ITS-PCI-MSI-0004:01:00.0   3 Edge      mhi
240:          0                   0  ITS-PCI-MSI-0004:01:00.0   4 Edge      mhi
242:          0                   0  ITS-PCI-MSI-0002:00:00.0   0 Edge      PCIe PME, aerdrv
243:         22                   0  ITS-PCI-MSIX-0002:01:00.0   0 Edge      nvme0q0
244:          0                   0  ITS-PCI-MSIX-0002:01:00.0   1 Edge      nvme0q1
245:          0                   0  ITS-PCI-MSIX-0002:01:00.0   2 Edge      nvme0q2
246:          0                   0  ITS-PCI-MSIX-0002:01:00.0   3 Edge      nvme0q3
247:          0                   0  ITS-PCI-MSIX-0002:01:00.0   4 Edge      nvme0q4
248:          0                   0  ITS-PCI-MSIX-0002:01:00.0   5 Edge      nvme0q5
249:          0                   0  ITS-PCI-MSIX-0002:01:00.0   6 Edge      nvme0q6
250:          0                   0  ITS-PCI-MSIX-0002:01:00.0   7 Edge      nvme0q7
251:          0                   0  ITS-PCI-MSIX-0002:01:00.0   8 Edge      nvme0q8

Johan

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