linux-kernel - [patch V2 18/21] platform-msi: Switch to the domain id aware MSI interfaces

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Date:   Mon, 21 Nov 2022 15:36:40 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>, linux-pci@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ashok Raj <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>,
        "Ahmed S. Darwish" <darwi@...utronix.de>
Subject: [patch V2 18/21] platform-msi: Switch to the domain id aware MSI interfaces

From: Ahmed S. Darwish <darwi@...utronix.de>

Switch to the new domain id aware interfaces to phase out the previous
ones. Use the range interface for allocation as the MSI descriptors
are allocate by the MSI core and therefore a precise range has to be
given. On free just tear down all MSI interrupts for simplicity.

No functional change.

Signed-off-by: Ahmed S. Darwish <darwi@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 drivers/base/platform-msi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -213,7 +213,7 @@ int platform_msi_domain_alloc_irqs(struc
 	if (err)
 		return err;
 
-	err = msi_domain_alloc_irqs(dev->msi.domain, dev, nvec);
+	err = msi_domain_alloc_irqs_range(dev, MSI_DEFAULT_DOMAIN, 0, nvec - 1);
 	if (err)
 		platform_msi_free_priv_data(dev);
 
@@ -227,7 +227,7 @@ EXPORT_SYMBOL_GPL(platform_msi_domain_al
  */
 void platform_msi_domain_free_irqs(struct device *dev)
 {
-	msi_domain_free_irqs(dev->msi.domain, dev);
+	msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN);
 	platform_msi_free_priv_data(dev);
 }
 EXPORT_SYMBOL_GPL(platform_msi_domain_free_irqs);