From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/ia64/include/asm/numa.h | 79 +++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 kernel/arch/ia64/include/asm/numa.h (limited to 'kernel/arch/ia64/include/asm/numa.h') diff --git a/kernel/arch/ia64/include/asm/numa.h b/kernel/arch/ia64/include/asm/numa.h new file mode 100644 index 000000000..2db0a6c6d --- /dev/null +++ b/kernel/arch/ia64/include/asm/numa.h @@ -0,0 +1,79 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * This file contains NUMA specific prototypes and definitions. + * + * 2002/08/05 Erich Focht + * + */ +#ifndef _ASM_IA64_NUMA_H +#define _ASM_IA64_NUMA_H + + +#ifdef CONFIG_NUMA + +#include +#include +#include +#include +#include + +#include + +extern u16 cpu_to_node_map[NR_CPUS] __cacheline_aligned; +extern cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned; +extern pg_data_t *pgdat_list[MAX_NUMNODES]; + +/* Stuff below this line could be architecture independent */ + +extern int num_node_memblks; /* total number of memory chunks */ + +/* + * List of node memory chunks. Filled when parsing SRAT table to + * obtain information about memory nodes. +*/ + +struct node_memblk_s { + unsigned long start_paddr; + unsigned long size; + int nid; /* which logical node contains this chunk? */ + int bank; /* which mem bank on this node */ +}; + +struct node_cpuid_s { + u16 phys_id; /* id << 8 | eid */ + int nid; /* logical node containing this CPU */ +}; + +extern struct node_memblk_s node_memblk[NR_NODE_MEMBLKS]; +extern struct node_cpuid_s node_cpuid[NR_CPUS]; + +/* + * ACPI 2.0 SLIT (System Locality Information Table) + * http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf + * + * This is a matrix with "distances" between nodes, they should be + * proportional to the memory access latency ratios. + */ + +extern u8 numa_slit[MAX_NUMNODES * MAX_NUMNODES]; +#define node_distance(from,to) (numa_slit[(from) * MAX_NUMNODES + (to)]) + +extern int paddr_to_nid(unsigned long paddr); + +#define local_nodeid (cpu_to_node_map[smp_processor_id()]) + +extern void map_cpu_to_node(int cpu, int nid); +extern void unmap_cpu_from_node(int cpu, int nid); +extern void numa_clear_node(int cpu); + +#else /* !CONFIG_NUMA */ +#define map_cpu_to_node(cpu, nid) do{}while(0) +#define unmap_cpu_from_node(cpu, nid) do{}while(0) +#define paddr_to_nid(addr) 0 +#define numa_clear_node(cpu) do { } while (0) +#endif /* CONFIG_NUMA */ + +#endif /* _ASM_IA64_NUMA_H */ -- cgit 1.2.3-korg