[Patch Part1 V2 27/29] x86, irq, SFI: use common irqdomain map interface to program IOAPIC pins

[Jiang Liu]

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@xxxxxxxxxxxxxxx>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/