linux-kernel - [tip:x86/apic] x86: intel-mid: Use the new io

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Date:	Mon, 14 Jul 2014 11:22:10 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	jiang.liu@...ux.intel.com, hpa@...or.com, mingo@...nel.org,
	yinghai@...nel.org, david.a.cohen@...ux.intel.com,
	tony.luck@...el.com, tglx@...utronix.de, feng.tang@...el.com
Subject: [tip:x86/apic] x86: intel-mid: Use the new io_apic interfaces

Commit-ID:  a4355e6749113d424cd15852c73e22c1ef1bb004
Gitweb:     http://git.kernel.org/tip/a4355e6749113d424cd15852c73e22c1ef1bb004
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Mon, 23 Jun 2014 10:30:35 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Mon, 14 Jul 2014 20:17:09 +0200

x86: intel-mid: Use the new io_apic interfaces

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.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Acked-by: David Cohen <david.a.cohen@...ux.intel.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Tang Feng <feng.tang@...el.com>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Tony Luck <tony.luck@...el.com>
Link: http://lkml.kernel.org/r/1403490643-26187-1-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 .../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 973cf3b..0b283d4 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;
 	}
 
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