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4f0455cf6f
There is already a stub function for pxm_to_node but conversion to the other direction is missing. It will be used by Microsoft Hypervisor code later. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org> Link: https://lore.kernel.org/r/20210203150435.27941-9-wei.liu@kernel.org
46 lines
969 B
C
46 lines
969 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ACPI_NUMA_H
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#define __ACPI_NUMA_H
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#ifdef CONFIG_ACPI_NUMA
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#include <linux/kernel.h>
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#include <linux/numa.h>
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/* Proximity bitmap length */
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#if MAX_NUMNODES > 256
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#define MAX_PXM_DOMAINS MAX_NUMNODES
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#else
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#define MAX_PXM_DOMAINS (256) /* Old pxm spec is defined 8 bit */
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#endif
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extern int pxm_to_node(int);
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extern int node_to_pxm(int);
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extern int acpi_map_pxm_to_node(int);
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extern unsigned char acpi_srat_revision;
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extern void disable_srat(void);
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extern void bad_srat(void);
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extern int srat_disabled(void);
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#else /* CONFIG_ACPI_NUMA */
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static inline void disable_srat(void)
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{
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}
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static inline int pxm_to_node(int pxm)
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{
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return 0;
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}
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static inline int node_to_pxm(int node)
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{
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return 0;
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}
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#endif /* CONFIG_ACPI_NUMA */
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#ifdef CONFIG_ACPI_HMAT
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extern void disable_hmat(void);
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#else /* CONFIG_ACPI_HMAT */
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static inline void disable_hmat(void)
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{
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}
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#endif /* CONFIG_ACPI_HMAT */
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#endif /* __ACP_NUMA_H */
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