Messages in this thread | | | Date | Wed, 17 Feb 2016 17:12:04 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH V3] AHCI: Workaround for ThunderX Errata#22536 |
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On Tue, 16 Feb 2016, tchalamarla@caviumnetworks.com wrote: > +#ifdef CONFIG_ARM64 > +/* Due to ERRATA#22536, ThunderX need to handle > + * HOST_IRQ_STAT differently. > + * Work around is to make sure all pending IRQs > + * are served before leaving handler > + */ > +static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance) > +{ > + struct ata_host *host = dev_instance; > + struct ahci_host_priv *hpriv; > + unsigned int rc = 0; > + void __iomem *mmio; > + u32 irq_stat, irq_masked; > + unsigned int handled = 1; > + > + VPRINTK("ENTER\n");
Come on. This VPRINK stuff is really pointless. Enable irq tracepoints, they already track the enter/exit of interrupt handlers ....
Thanks,
tglx
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