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xen/acpi: Move xen_acpi_get_pxm to Xen's acpi.h 

So that it could be reused by Xen CPU hotplug logic.

Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Liu Jinsong 2013-01-25 15:42:31 +08:00 committed by Konrad Rzeszutek Wilk
parent b22ff77b82
commit 40a58637a4
2 changed files with 18 additions and 18 deletions
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18
drivers/xen/xen-acpi-memhotplug.c
View File

@ -65,24 +65,6 @@ static int xen_hotadd_memory(int pxm, struct acpi_memory_info *info)
return rc;
}
static int xen_acpi_get_pxm(acpi_handle h)
{
unsigned long long pxm;
acpi_status status;
acpi_handle handle;
acpi_handle phandle = h;
do {
handle = phandle;
status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm);
if (ACPI_SUCCESS(status))
return pxm;
status = acpi_get_parent(handle, &phandle);
} while (ACPI_SUCCESS(status));
return -ENXIO;
}
static int xen_acpi_memory_enable_device(struct acpi_memory_device *mem_device)
{
int pxm, result;

18
include/xen/acpi.h
View File

@ -69,4 +69,22 @@ static inline void xen_acpi_sleep_register(void)
}
#endif
static inline int xen_acpi_get_pxm(acpi_handle h)
{
unsigned long long pxm;
acpi_status status;
acpi_handle handle;
acpi_handle phandle = h;
do {
handle = phandle;
status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm);
if (ACPI_SUCCESS(status))
return pxm;
status = acpi_get_parent(handle, &phandle);
} while (ACPI_SUCCESS(status));
return -ENXIO;
}
#endif /* _XEN_ACPI_H */