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From: Jiang Liu <jiang.liu@linux.intel.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Grant Likely <grant.likely@linaro.org>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Yinghai Lu <yinghai@kernel.org>,
	x86@kernel.org, Len Brown <lenb@kernel.org>,
	David Cohen <david.a.cohen@linux.intel.com>,
	Kuppuswamy Sathyanarayanan
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Tony Luck <tony.luck@intel.com>, Joerg Roedel <joro@8bytes.org>,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-acpi@vger.kernel.org,
	"H. Peter Anvin" <hpa@linux.intel.com>,
	sfi-devel@simplefirmware.org
Subject: [Patch Part1 V2 27/29] x86, irq, SFI: use common irqdomain map interface to program IOAPIC pins
Date: Tue, 20 May 2014 00:23:11 +0800	[thread overview]
Message-ID: <1400516594-11544-28-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1400516594-11544-1-git-send-email-jiang.liu@linux.intel.com>

Refine SFI to use common irqdomain map interface to program IOAPIC pins,
so we can unify the callsite to progam IOAPIC pins.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/x86/pci/intel_mid_pci.c      |   17 +++++++----------
 arch/x86/platform/intel-mid/sfi.c |   18 +++++++++---------
 arch/x86/platform/sfi/sfi.c       |    4 +++-
 3 files changed, 19 insertions(+), 20 deletions(-)

diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 84b9d672843d..f6f3de857baa 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -208,23 +208,20 @@ static int pci_write(struct pci_bus *bus, unsigned int devfn, int where,
 
 static int intel_mid_pci_irq_enable(struct pci_dev *dev)
 {
-	u8 pin;
-	struct io_apic_irq_attr irq_attr;
-
-	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+	int ioapic, polarity;
 
 	/*
 	 * MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to
 	 * IOAPIC RTE entries, so we just enable RTE for the device.
 	 */
-	irq_attr.ioapic = mp_find_ioapic(dev->irq);
-	irq_attr.ioapic_pin = dev->irq;
-	irq_attr.trigger = 1; /* level */
+	ioapic = mp_find_ioapic(dev->irq);
 	if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER)
-		irq_attr.polarity = 0; /* active high */
+		polarity = 0; /* active high */
 	else
-		irq_attr.polarity = 1; /* active low */
-	io_apic_set_pci_routing(&dev->dev, dev->irq, &irq_attr);
+		polarity = 1; /* active low */
+	if (mp_set_pin_attr(ioapic, dev->irq, 1, polarity, dev_to_node(dev)))
+		return -EBUSY;
+	mp_map_gsi_to_irq(dev->irq, 1);
 
 	return 0;
 }
diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c
index 994c40bd7cb7..3fe5c23ba1c5 100644
--- a/arch/x86/platform/intel-mid/sfi.c
+++ b/arch/x86/platform/intel-mid/sfi.c
@@ -434,6 +434,7 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
 	struct devs_id *dev = NULL;
 	int num, i;
 	int ioapic;
+	int polarity;
 	struct io_apic_irq_attr irq_attr;
 
 	sb = (struct sfi_table_simple *)table;
@@ -450,30 +451,29 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
 			 */
 			ioapic = mp_find_ioapic(irq);
 			if (ioapic >= 0) {
-				irq_attr.ioapic = ioapic;
-				irq_attr.ioapic_pin = irq;
-				irq_attr.trigger = 1;
 				if (intel_mid_identify_cpu() ==
 						INTEL_MID_CPU_CHIP_TANGIER) {
 					if (!strncmp(pentry->name,
 							"r69001-ts-i2c", 13))
 						/* active low */
-						irq_attr.polarity = 1;
+						polarity = 1;
 					else if (!strncmp(pentry->name,
 							"synaptics_3202", 14))
 						/* active low */
-						irq_attr.polarity = 1;
+						polarity = 1;
 					else if (irq == 41)
 						/* fast_int_1 */
-						irq_attr.polarity = 1;
+						polarity = 1;
 					else
 						/* active high */
-						irq_attr.polarity = 0;
+						polarity = 0;
 				} else {
 					/* PNW and CLV go with active low */
-					irq_attr.polarity = 1;
+					polarity = 1;
 				}
-				io_apic_set_pci_routing(NULL, irq, &irq_attr);
+				if (mp_set_pin_attr(ioapic, irq, 1, polarity, NUMA_NO_NODE))
+					return -EBUSY;
+				mp_map_gsi_to_irq(dev->irq, 1);
 			}
 		} else {
 			irq = 0; /* No irq */
diff --git a/arch/x86/platform/sfi/sfi.c b/arch/x86/platform/sfi/sfi.c
index 2c3522dfa05d..91e5046efae9 100644
--- a/arch/x86/platform/sfi/sfi.c
+++ b/arch/x86/platform/sfi/sfi.c
@@ -71,7 +71,9 @@ static int __init sfi_parse_cpus(struct sfi_table_header *table)
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_X86_IO_APIC
-static struct irq_domain_ops sfi_ioapic_irqdomain_ops;
+static struct irq_domain_ops sfi_ioapic_irqdomain_ops = {
+	.map = mp_irqdomain_map,
+};
 
 static struct irq_domain *sfi_ioapic_create_irqdomain(int ioapic, void *arg)
 {
-- 
1.7.10.4


  parent reply	other threads:[~2014-05-19 16:23 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-19 16:22 [Patch Part1 V2 00/29] use irqdomain to dynamically allocate IRQ for IOAPIC Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 01/29] x86, irq: update high address field when updating affinity for MSI IRQ Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 02/29] genirq, trivial: improve documentation to match current implementation Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 03/29] x86, mpparse: use pr_lvl() helper utilities to replace printk(KERN_LVL) Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 04/29] x86, mpparse: simplify arch/x86/include/asm/mpspec.h Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 05/29] x86, PCI, ACPI: use kmalloc_node() to optimize for performance Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 06/29] x86, acpi, irq: kill static function irq_to_gsi() Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 07/29] x86, ACPI, trivial: minor improvements to arch/x86/kernel/acpi/boot.c Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 08/29] x86, ACPI, irq: enhance error handling in function acpi_register_gsi() Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 09/29] x86, ACPI, irq: fix possible eror in GSI to IRQ mapping for legacy IRQ Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 10/29] x86, irq, trivial: minor improvements of IRQ related code Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 11/29] x86, ioapic: kill unused global variable timer_through_8259 Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 12/29] x86, ioapic: kill static variable nr_irqs_gsi Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 13/29] x86, ioapic: introduce helper utilities to walk ioapics and pins Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 14/29] x86, ioapic: use irq_cfg() instead of irq_get_chip_data() for better readability Jiang Liu
2014-05-19 16:22 ` [Patch Part1 V2 15/29] x86, irq: reorganize IO_APIC_get_PCI_irq_vector() to prepare for irqdomain Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 16/29] x86, irq: introduce some helper utilities to improve readability Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 17/29] x86, ACPI, irq: consolidate algorithm of mapping (ioapic, pin) to IRQ number Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 18/29] x86, irq: introduce mechanisms to support dynamically allocate IRQ for IOAPIC Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 19/29] x86, irq: enhance mp_register_ioapic() to support irqdomain Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 20/29] x86, ACPI, irq: provide basic irqdomain support Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 21/29] x86, mpparse, " Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 22/29] x86, devicetree, irq: use common mechanism to support irqdomain Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 23/29] x86, SFI, irq: provide basic irqdomain support Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 24/29] x86, irq: introduce two helper functions to support irqdomain map operation Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 25/29] x86, irq, ACPI: use common irqdomain map interface to program IOAPIC pins Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 26/29] x86, irq, mpparse: " Jiang Liu
2014-05-19 16:23 ` Jiang Liu [this message]
2014-05-19 16:23 ` [Patch Part1 V2 28/29] x86, irq, devicetree: " Jiang Liu
2014-05-19 16:23 ` [Patch Part1 V2 29/29] x86, irq: clean up unused IOAPIC interface Jiang Liu

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