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ia64: Remove acpi_get_pxm() usage

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The IOMMU, LSAPIC, IOSAPIC, and PCI host bridge code doesn't care about
_PXM values directly; it only needs to know what NUMA node the hardware is
on.

This uses acpi_get_node() directly and removes the _PXM stuff.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bjorn Helgaas 2014-01-24 15:28:42 -07:00
parent 10ee3d7032
commit b1e9cee7f6
4 changed files with 15 additions and 47 deletions
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22
arch/ia64/hp/common/sba_iommu.c
View File

@ -2017,31 +2017,19 @@ sba_connect_bus(struct pci_bus *bus)
printk(KERN_WARNING "No IOC for PCI Bus %04x:%02x in ACPI\n", pci_domain_nr(bus), bus->number);
}
#ifdef CONFIG_NUMA
static void __init
sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
{
#ifdef CONFIG_NUMA
unsigned int node;
int pxm;
ioc->node = NUMA_NO_NODE;
pxm = acpi_get_pxm(handle);
if (pxm < 0)
return;
node = pxm_to_node(pxm);
if (node == NUMA_NO_NODE || !node_online(node))
return;
node = acpi_get_node(handle);
if (node != NUMA_NO_NODE && !node_online(node))
node = NUMA_NO_NODE;
ioc->node = node;
return;
}
#else
#define sba_map_ioc_to_node(ioc, handle)
#endif
}
static int __init
acpi_sba_ioc_add(struct acpi_device *device,

2
arch/ia64/include/asm/pci.h
View File

@ -98,7 +98,7 @@ struct pci_controller {
struct acpi_device *companion;
void *iommu;
int segment;
int node; /* nearest node with memory or -1 for global allocation */
int node; /* nearest node with memory or NUMA_NO_NODE for global allocation */
void *platform_data;
};

28
arch/ia64/kernel/acpi.c
View File

@ -803,14 +803,9 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
* ACPI based hotplug CPU support
*/
#ifdef CONFIG_ACPI_HOTPLUG_CPU
static
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
int pxm_id;
int nid;
pxm_id = acpi_get_pxm(handle);
/*
* We don't have cpu-only-node hotadd. But if the system equips
* SRAT table, pxm is already found and node is ready.
@ -818,11 +813,10 @@ int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
* This code here is for the system which doesn't have full SRAT
* table for possible cpus.
*/
nid = acpi_map_pxm_to_node(pxm_id);
node_cpuid[cpu].phys_id = physid;
node_cpuid[cpu].nid = nid;
node_cpuid[cpu].nid = acpi_get_node(handle);
#endif
return (0);
return 0;
}
int additional_cpus __initdata = -1;
@ -929,7 +923,7 @@ static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
union acpi_object *obj;
struct acpi_madt_io_sapic *iosapic;
unsigned int gsi_base;
int pxm, node;
int node;
/* Only care about objects w/ a method that returns the MADT */
if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
@ -956,17 +950,9 @@ static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
kfree(buffer.pointer);
/*
* OK, it's an IOSAPIC MADT entry, look for a _PXM value to tell
* us which node to associate this with.
*/
pxm = acpi_get_pxm(handle);
if (pxm < 0)
return AE_OK;
node = pxm_to_node(pxm);
if (node >= MAX_NUMNODES || !node_online(node) ||
/* OK, it's an IOSAPIC MADT entry; associate it with a node */
node = acpi_get_node(handle);
if (node == NUMA_NO_NODE || !node_online(node) ||
cpumask_empty(cpumask_of_node(node)))
return AE_OK;

10
arch/ia64/pci/pci.c
View File

@ -126,7 +126,6 @@ static struct pci_controller *alloc_pci_controller(int seg)
return NULL;
controller->segment = seg;
controller->node = -1;
return controller;
}
@ -430,19 +429,14 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
struct pci_root_info *info = NULL;
int busnum = root->secondary.start;
struct pci_bus *pbus;
int pxm, ret;
int ret;
controller = alloc_pci_controller(domain);
if (!controller)
return NULL;
controller->companion = device;
pxm = acpi_get_pxm(device->handle);
#ifdef CONFIG_NUMA
if (pxm >= 0)
controller->node = pxm_to_node(pxm);
#endif
controller->node = acpi_get_node(device->handle);
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info) {