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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/ia64/include/asm/sn/arch.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/ia64/include/asm/sn/arch.h')
-rw-r--r-- | kernel/arch/ia64/include/asm/sn/arch.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/kernel/arch/ia64/include/asm/sn/arch.h b/kernel/arch/ia64/include/asm/sn/arch.h new file mode 100644 index 000000000..31eb78486 --- /dev/null +++ b/kernel/arch/ia64/include/asm/sn/arch.h @@ -0,0 +1,86 @@ +/* + * 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. + * + * SGI specific setup. + * + * Copyright (C) 1995-1997,1999,2001-2005 Silicon Graphics, Inc. All rights reserved. + * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org) + */ +#ifndef _ASM_IA64_SN_ARCH_H +#define _ASM_IA64_SN_ARCH_H + +#include <linux/numa.h> +#include <asm/types.h> +#include <asm/percpu.h> +#include <asm/sn/types.h> +#include <asm/sn/sn_cpuid.h> + +/* + * This is the maximum number of NUMALINK nodes that can be part of a single + * SSI kernel. This number includes C-brick, M-bricks, and TIOs. Nodes in + * remote partitions are NOT included in this number. + * The number of compact nodes cannot exceed size of a coherency domain. + * The purpose of this define is to specify a node count that includes + * all C/M/TIO nodes in an SSI system. + * + * SGI system can currently support up to 256 C/M nodes plus additional TIO nodes. + * + * Note: ACPI20 has an architectural limit of 256 nodes. When we upgrade + * to ACPI3.0, this limit will be removed. The notion of "compact nodes" + * should be deleted and TIOs should be included in MAX_NUMNODES. + */ +#define MAX_TIO_NODES MAX_NUMNODES +#define MAX_COMPACT_NODES (MAX_NUMNODES + MAX_TIO_NODES) + +/* + * Maximum number of nodes in all partitions and in all coherency domains. + * This is the total number of nodes accessible in the numalink fabric. It + * includes all C & M bricks, plus all TIOs. + * + * This value is also the value of the maximum number of NASIDs in the numalink + * fabric. + */ +#define MAX_NUMALINK_NODES 16384 + +/* + * The following defines attributes of the HUB chip. These attributes are + * frequently referenced. They are kept in the per-cpu data areas of each cpu. + * They are kept together in a struct to minimize cache misses. + */ +struct sn_hub_info_s { + u8 shub2; + u8 nasid_shift; + u8 as_shift; + u8 shub_1_1_found; + u16 nasid_bitmask; +}; +DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info); +#define sn_hub_info this_cpu_ptr(&__sn_hub_info) +#define is_shub2() (sn_hub_info->shub2) +#define is_shub1() (sn_hub_info->shub2 == 0) + +/* + * Use this macro to test if shub 1.1 wars should be enabled + */ +#define enable_shub_wars_1_1() (sn_hub_info->shub_1_1_found) + + +/* + * Compact node ID to nasid mappings kept in the per-cpu data areas of each + * cpu. + */ +DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]); +#define sn_cnodeid_to_nasid this_cpu_ptr(&__sn_cnodeid_to_nasid[0]) + + +extern u8 sn_partition_id; +extern u8 sn_system_size; +extern u8 sn_sharing_domain_size; +extern u8 sn_region_size; + +extern void sn_flush_all_caches(long addr, long bytes); +extern bool sn_cpu_disable_allowed(int cpu); + +#endif /* _ASM_IA64_SN_ARCH_H */ |