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-rw-r--r--arch/x86/pci/acpi.c6
-rw-r--r--arch/x86/pci/intel_mid_pci.c27
-rw-r--r--arch/x86/pci/irq.c16
-rw-r--r--arch/x86/pci/xen.c7
4 files changed, 35 insertions, 21 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 5075371ab593..cfd1b132b8e3 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -448,7 +448,7 @@ static void probe_pci_root_info(struct pci_root_info *info,
return;
size = sizeof(*info->res) * info->res_num;
- info->res = kzalloc(size, GFP_KERNEL);
+ info->res = kzalloc_node(size, GFP_KERNEL, info->sd.node);
if (!info->res) {
info->res_num = 0;
return;
@@ -456,7 +456,7 @@ static void probe_pci_root_info(struct pci_root_info *info,
size = sizeof(*info->res_offset) * info->res_num;
info->res_num = 0;
- info->res_offset = kzalloc(size, GFP_KERNEL);
+ info->res_offset = kzalloc_node(size, GFP_KERNEL, info->sd.node);
if (!info->res_offset) {
kfree(info->res);
info->res = NULL;
@@ -499,7 +499,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
if (node != NUMA_NO_NODE && !node_online(node))
node = NUMA_NO_NODE;
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = kzalloc_node(sizeof(*info), GFP_KERNEL, node);
if (!info) {
printk(KERN_WARNING "pci_bus %04x:%02x: "
"ignored (out of memory)\n", domain, busnum);
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 84b9d672843d..3865116c51fb 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -208,27 +208,31 @@ 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;
+ int polarity;
- pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+ if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER)
+ polarity = 0; /* active high */
+ else
+ polarity = 1; /* active low */
/*
* 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 */
- if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER)
- irq_attr.polarity = 0; /* active high */
- else
- irq_attr.polarity = 1; /* active low */
- io_apic_set_pci_routing(&dev->dev, dev->irq, &irq_attr);
+ if (mp_set_gsi_attr(dev->irq, 1, polarity, dev_to_node(&dev->dev)))
+ return -EBUSY;
+ if (mp_map_gsi_to_irq(dev->irq, IOAPIC_MAP_ALLOC) < 0)
+ return -EBUSY;
return 0;
}
+static void intel_mid_pci_irq_disable(struct pci_dev *dev)
+{
+ if (!dev->dev.power.is_prepared && dev->irq > 0)
+ mp_unmap_irq(dev->irq);
+}
+
struct pci_ops intel_mid_pci_ops = {
.read = pci_read,
.write = pci_write,
@@ -245,6 +249,7 @@ int __init intel_mid_pci_init(void)
pr_info("Intel MID platform detected, using MID PCI ops\n");
pci_mmcfg_late_init();
pcibios_enable_irq = intel_mid_pci_irq_enable;
+ pcibios_disable_irq = intel_mid_pci_irq_disable;
pci_root_ops = intel_mid_pci_ops;
pci_soc_mode = 1;
/* Continue with standard init */
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 84112f55dd7a..bc1a2c341891 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -26,6 +26,7 @@ static int acer_tm360_irqrouting;
static struct irq_routing_table *pirq_table;
static int pirq_enable_irq(struct pci_dev *dev);
+static void pirq_disable_irq(struct pci_dev *dev);
/*
* Never use: 0, 1, 2 (timer, keyboard, and cascade)
@@ -53,7 +54,7 @@ struct irq_router_handler {
};
int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
-void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
+void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq;
/*
* Check passed address for the PCI IRQ Routing Table signature
@@ -1186,7 +1187,7 @@ void pcibios_penalize_isa_irq(int irq, int active)
static int pirq_enable_irq(struct pci_dev *dev)
{
- u8 pin;
+ u8 pin = 0;
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
if (pin && !pcibios_lookup_irq(dev, 1)) {
@@ -1227,8 +1228,6 @@ static int pirq_enable_irq(struct pci_dev *dev)
}
dev = temp_dev;
if (irq >= 0) {
- io_apic_set_pci_routing(&dev->dev, irq,
- &irq_attr);
dev->irq = irq;
dev_info(&dev->dev, "PCI->APIC IRQ transform: "
"INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
@@ -1254,3 +1253,12 @@ static int pirq_enable_irq(struct pci_dev *dev)
}
return 0;
}
+
+static void pirq_disable_irq(struct pci_dev *dev)
+{
+ if (io_apic_assign_pci_irqs && !dev->dev.power.is_prepared &&
+ dev->irq) {
+ mp_unmap_irq(dev->irq);
+ dev->irq = 0;
+ }
+}
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 905956f16465..093f5f4272d3 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -23,6 +23,7 @@
#include <xen/features.h>
#include <xen/events.h>
#include <asm/xen/pci.h>
+#include <asm/i8259.h>
static int xen_pcifront_enable_irq(struct pci_dev *dev)
{
@@ -40,7 +41,7 @@ static int xen_pcifront_enable_irq(struct pci_dev *dev)
/* In PV DomU the Xen PCI backend puts the PIRQ in the interrupt line.*/
pirq = gsi;
- if (gsi < NR_IRQS_LEGACY)
+ if (gsi < nr_legacy_irqs())
share = 0;
rc = xen_bind_pirq_gsi_to_irq(gsi, pirq, share, "pcifront");
@@ -511,7 +512,7 @@ int __init pci_xen_initial_domain(void)
xen_setup_acpi_sci();
__acpi_register_gsi = acpi_register_gsi_xen;
/* Pre-allocate legacy irqs */
- for (irq = 0; irq < NR_IRQS_LEGACY; irq++) {
+ for (irq = 0; irq < nr_legacy_irqs(); irq++) {
int trigger, polarity;
if (acpi_get_override_irq(irq, &trigger, &polarity) == -1)
@@ -522,7 +523,7 @@ int __init pci_xen_initial_domain(void)
true /* Map GSI to PIRQ */);
}
if (0 == nr_ioapics) {
- for (irq = 0; irq < NR_IRQS_LEGACY; irq++)
+ for (irq = 0; irq < nr_legacy_irqs(); irq++)
xen_bind_pirq_gsi_to_irq(irq, irq, 0, "xt-pic");
}
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 07:06:51 +0000