linux-kernel - Re: [Patch] x86: intel-mid: fix conflicts between 78a3bb9e408b and 9f354b0252b8

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Date:	Mon, 23 Jun 2014 10:38:07 -0700
From:	David Cohen <david.a.cohen@...ux.intel.com>
To:	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Tang, Feng" <feng.tang@...el.com>,
	Yinghai Lu <yinghai@...nel.org>, x86@...nel.org,
	Tony Luck <tony.luck@...el.com>, linux-kernel@...r.kernel.org
Subject: Re: [Patch] x86: intel-mid: fix conflicts between 78a3bb9e408b and
 9f354b0252b8

Hi Jiang,

On Mon, Jun 23, 2014 at 10:30:35AM +0800, Jiang Liu wrote:
> Commit 9f354b0252b8 "x86, irq: Clean up unused IOAPIC interface" kills
> interface io_apic_set_pci_routing(), so change arch/x86/platform/
> intel-mid/device_libs/platform_wdt.c to use new interfaces.
> 
> Due to hardware resource restriction, this patch only passes compilation
> without functional tests.

I'll test this patch.

BR, David

> 
> Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
> ---
>  .../platform/intel-mid/device_libs/platform_wdt.c  |   22 ++++++--------------
>  1 file changed, 6 insertions(+), 16 deletions(-)
> 
> diff --git a/arch/x86/platform/intel-mid/device_libs/platform_wdt.c b/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
> index 973cf3bfa9fd..0b283d4d0ad7 100644
> --- a/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
> +++ b/arch/x86/platform/intel-mid/device_libs/platform_wdt.c
> @@ -26,28 +26,18 @@ static struct platform_device wdt_dev = {
>  
>  static int tangier_probe(struct platform_device *pdev)
>  {
> -	int ioapic;
> -	int irq;
> +	int gsi;
>  	struct intel_mid_wdt_pdata *pdata = pdev->dev.platform_data;
> -	struct io_apic_irq_attr irq_attr = { 0 };
>  
>  	if (!pdata)
>  		return -EINVAL;
>  
> -	irq = pdata->irq;
> -	ioapic = mp_find_ioapic(irq);
> -	if (ioapic >= 0) {
> -		int ret;
> -		irq_attr.ioapic = ioapic;
> -		irq_attr.ioapic_pin = irq;
> -		irq_attr.trigger = 1;
> -		/* irq_attr.polarity = 0; -> Active high */
> -		ret = io_apic_set_pci_routing(NULL, irq, &irq_attr);
> -		if (ret)
> -			return ret;
> -	} else {
> +	/* IOAPIC builds identity mapping between GSI and IRQ on MID */
> +	gsi = pdata->irq;
> +	if (mp_set_gsi_attr(gsi, 1, 0, cpu_to_node(0)) ||
> +	    mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC) <= 0) {
>  		dev_warn(&pdev->dev, "cannot find interrupt %d in ioapic\n",
> -			 irq);
> +			 gsi);
>  		return -EINVAL;
>  	}
>  
> -- 
> 1.7.10.4
> 
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