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Date: Thu, 17 Jul 2014 09:01:32 +0530 From: Pratyush Anand <pratyush.anand@...com> To: Murali Karicheri <m-karicheri2@...com> Cc: "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, Russell King <linux@....linux.org.uk>, Grant Likely <grant.likely@...aro.org>, Rob Herring <robh+dt@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, Richard Zhu <r65037@...escale.com>, Kishon Vijay Abraham I <kishon@...com>, Marek Vasut <marex@...x.de>, Arnd Bergmann <arnd@...db.de>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Randy Dunlap <rdunlap@...radead.org> Subject: Re: [PATCH v5 2/5] PCI: designware: refactor MSI code to work with v3.65 dw hardware On Thu, Jul 17, 2014 at 12:38:03AM +0800, Murali Karicheri wrote: > Keystone PCI controller is based on v3.65 version of the DW > PCI h/w that implements MSI controller registers in application > space compared to the newer version. This requires updates to > the DW core API to support the PCI controller driver based on > this old DW hardware. Add msi_irq_set()/clear() API functions to > allow Set/Clear MSI IRQ enable bit in the application register. > Also the old h/w uses MSI_IRQ register in application register > space to raise MSI IRQ to the RC from EP. Current code uses the > standard mechanism as per PCI spec. So add another API get_msi_data() > to get the address of this register so that common code can be > re-used on old h/w. > > Signed-off-by: Murali Karicheri <m-karicheri2@...com> > Acked-by: Mohit Kumar <mohit.kumar@...com> > Acked-by: Jingoo Han <jg1.han@...sung.com> > Acked-by: Santosh Shilimkar <santosh.shilimkar@...com> > Reviewed-by: Pratyush Anand <pratyush.anand@...com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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