mirror of https://gitee.com/openkylin/linux.git
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_IA64_SN_NODEPDA_H
|
||
|
|
#define _ASM_IA64_SN_NODEPDA_H
|
||
|
|
|
||
|
|
|
||
|
|
#include <asm/irq.h>
|
||
|
|
#include <asm/sn/arch.h>
|
||
|
|
#include <asm/sn/intr.h>
|
||
|
|
#include <asm/sn/bte.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* NUMA Node-Specific Data structures are defined in this file.
|
||
|
|
* In particular, this is the location of the node PDA.
|
||
|
|
* A pointer to the right node PDA is saved in each CPU PDA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Node-specific data structure.
|
||
|
|
*
|
||
|
|
* One of these structures is allocated on each node of a NUMA system.
|
||
|
|
*
|
||
|
|
* This structure provides a convenient way of keeping together
|
||
|
|
* all per-node data structures.
|
||
|
|
*/
|
||
|
|
struct phys_cpuid {
|
||
|
|
short nasid;
|
||
|
|
char subnode;
|
||
|
|
char slice;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct nodepda_s {
|
||
|
|
void *pdinfo; /* Platform-dependent per-node info */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The BTEs on this node are shared by the local cpus
|
||
|
|
*/
|
||
|
|
struct bteinfo_s bte_if[MAX_BTES_PER_NODE]; /* Virtual Interface */
|
||
|
|
struct timer_list bte_recovery_timer;
|
||
|
|
spinlock_t bte_recovery_lock;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Array of pointers to the nodepdas for each node.
|
||
|
|
*/
|
||
|
|
struct nodepda_s *pernode_pdaindr[MAX_COMPACT_NODES];
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Array of physical cpu identifiers. Indexed by cpuid.
|
||
|
|
*/
|
||
|
|
struct phys_cpuid phys_cpuid[NR_CPUS];
|
||
|
|
spinlock_t ptc_lock ____cacheline_aligned_in_smp;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct nodepda_s nodepda_t;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Access Functions for node PDA.
|
||
|
|
* Since there is one nodepda for each node, we need a convenient mechanism
|
||
|
|
* to access these nodepdas without cluttering code with #ifdefs.
|
||
|
|
* The next set of definitions provides this.
|
||
|
|
* Routines are expected to use
|
||
|
|
*
|
||
|
|
* sn_nodepda - to access node PDA for the node on which code is running
|
||
|
|
* NODEPDA(cnodeid) - to access node PDA for cnodeid
|
||
|
|
*/
|
||
|
|
|
||
|
|
DECLARE_PER_CPU(struct nodepda_s *, __sn_nodepda);
|
||
|
|
#define sn_nodepda (__get_cpu_var(__sn_nodepda))
|
||
|
|
#define NODEPDA(cnodeid) (sn_nodepda->pernode_pdaindr[cnodeid])
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check if given a compact node id the corresponding node has all the
|
||
|
|
* cpus disabled.
|
||
|
|
*/
|
||
|
|
#define is_headless_node(cnodeid) (nr_cpus_node(cnodeid) == 0)
|
||
|
|
|
||
|
|
#endif /* _ASM_IA64_SN_NODEPDA_H */
|