diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2023-12-21 15:03:07 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-12-22 14:33:10 -0800 |
| commit | ca53543d8e340070fb37fde93f36ed9012c76b90 (patch) | |
| tree | 9bf7c9c9daf0df896c84344961456cefc3b828f7 /include/linux/acpi.h | |
| parent | a3a3e341f169511823f7b2d140a0bdfbd620dcbd (diff) | |
acpi: numa: Add helper function to retrieve the performance attributes
Add helper to retrieve the performance attributes based on the device
handle. The helper function is exported so the CXL driver can use that
to acquire the performance data between the CPU and the CXL host bridge.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/170319618721.2212653.5552947472849081786.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/acpi.h')
| -rw-r--r-- | include/linux/acpi.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 4db54e928b36..8b0761c682f9 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -15,6 +15,7 @@ #include <linux/mod_devicetable.h> #include <linux/property.h> #include <linux/uuid.h> +#include <linux/node.h> struct irq_domain; struct irq_domain_ops; @@ -424,6 +425,16 @@ extern int acpi_blacklisted(void); extern void acpi_osi_setup(char *str); extern bool acpi_osi_is_win8(void); +#ifdef CONFIG_ACPI_HMAT +int acpi_get_genport_coordinates(u32 uid, struct access_coordinate *coord); +#else +static inline int acpi_get_genport_coordinates(u32 uid, + struct access_coordinate *coord) +{ + return -EOPNOTSUPP; +} +#endif + #ifdef CONFIG_ACPI_NUMA int acpi_map_pxm_to_node(int pxm); int acpi_get_node(acpi_handle handle); |