linux-kernel - Re: [PATCH] ATA convert GSI to irq on ia64

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Date:	Thu, 8 Feb 2007 17:15:32 +0800
From:	"Luming Yu" <luming.yu@...il.com>
To:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-scsi@...r.kernel.org,
	linux-ide@...r.kernel.org, "Jeff Garzik" <jgarzik@...ox.com>
Subject: Re: [PATCH] ATA convert GSI to irq on ia64

if use ide_default_irq , then I guess the #if defined can be removed.
#define ATA_PRIMARY_IRQ(dev)   isa_irq_to_vector(0x1F0)


On 2/8/07, Zhang, Yanmin <yanmin_zhang@...ux.intel.com> wrote:
> If an ATA drive uses legacy mode, ata driver will choose 14 and 15 as the
> fixed irq number. On ia64 platform, such numbers are GSI and should be converted
> to irq vector.
>
> Below patch against kernel 2.6.20 fixes it.
>
> Signed-off-by: Zhang Yanmin <yanmin.zhang@...el.com>
>
> ---
>
> diff -Nraup linux-2.6.20/include/asm-generic/libata-portmap.h linux-2.6.20_fix/include/asm-generic/libata-portmap.h
> --- linux-2.6.20/include/asm-generic/libata-portmap.h   2007-02-08 15:13:44.000000000 +0800
> +++ linux-2.6.20_fix/include/asm-generic/libata-portmap.h       2007-02-08 15:20:13.000000000 +0800
> @@ -3,10 +3,20 @@
>
>  #define ATA_PRIMARY_CMD                0x1F0
>  #define ATA_PRIMARY_CTL                0x3F6
> +#if defined(__ia64__)
> +#define ATA_PRIMARY_IRQ(dev)   isa_irq_to_vector(14)
> +#else
>  #define ATA_PRIMARY_IRQ(dev)   14
> +#endif
> +
>
>  #define ATA_SECONDARY_CMD      0x170
>  #define ATA_SECONDARY_CTL      0x376
> +#if defined(__ia64__)
> +#define ATA_SECONDARY_IRQ(dev) isa_irq_to_vector(15)
> +#else
>  #define ATA_SECONDARY_IRQ(dev) 15
> +#endif
> +
>
>  #endif
> -
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