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Commit 2e34f07f authored by Dean Nelson's avatar Dean Nelson Committed by Tony Luck
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[PATCH] move cnodeid_to_nasid_table out of pda


Another step in the effort to eliminate the SN pda structure.
This patch moves the cnodeid_to_nasid_table field out of the pda,
making it a standalone per-cpu data item, and exports it so it can
be accessed by kernel modules.

Signed-off-by: default avatarDean Nelson <dcn@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent ce0a3956
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+17 −14
Original line number Original line Diff line number Diff line
@@ -3,7 +3,7 @@
 * License.  See the file "COPYING" in the main directory of this archive
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 * for more details.
 *
 *
 * Copyright (C) 1999,2001-2004 Silicon Graphics, Inc. All rights reserved.
 * Copyright (C) 1999,2001-2005 Silicon Graphics, Inc. All rights reserved.
 */
 */


#include <linux/config.h>
#include <linux/config.h>
@@ -73,6 +73,9 @@ EXPORT_SYMBOL(sn_rtc_cycles_per_second);
DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
EXPORT_PER_CPU_SYMBOL(__sn_hub_info);
EXPORT_PER_CPU_SYMBOL(__sn_hub_info);


DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);
EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);

partid_t sn_partid = -1;
partid_t sn_partid = -1;
EXPORT_SYMBOL(sn_partid);
EXPORT_SYMBOL(sn_partid);
char sn_system_serial_number_string[128];
char sn_system_serial_number_string[128];
@@ -373,10 +376,10 @@ static void __init sn_init_pdas(char **cmdline_p)
{
{
	cnodeid_t cnode;
	cnodeid_t cnode;


	memset(pda->cnodeid_to_nasid_table, -1,
	memset(sn_cnodeid_to_nasid, -1,
	       sizeof(pda->cnodeid_to_nasid_table));
			sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
	for_each_online_node(cnode)
	for_each_online_node(cnode)
		pda->cnodeid_to_nasid_table[cnode] =
		sn_cnodeid_to_nasid[cnode] =
				pxm_to_nasid(nid_to_pxm_map[cnode]);
				pxm_to_nasid(nid_to_pxm_map[cnode]);


	numionodes = num_online_nodes();
	numionodes = num_online_nodes();
@@ -486,15 +489,18 @@ void __init sn_cpu_init(void)
	pda->idle_flag = 0;
	pda->idle_flag = 0;


	if (cpuid != 0) {
	if (cpuid != 0) {
		memcpy(pda->cnodeid_to_nasid_table,
		/* copy cpu 0's sn_cnodeid_to_nasid table to this cpu's */
		       pdacpu(0)->cnodeid_to_nasid_table,
		memcpy(sn_cnodeid_to_nasid,
		       sizeof(pda->cnodeid_to_nasid_table));
		       (&per_cpu(__sn_cnodeid_to_nasid, 0)),
		       sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
	}
	}


	/*
	/*
	 * Check for WARs.
	 * Check for WARs.
	 * Only needs to be done once, on BSP.
	 * Only needs to be done once, on BSP.
	 * Has to be done after loop above, because it uses pda.cnodeid_to_nasid_table[i].
	 * Has to be done after loop above, because it uses this cpu's
	 * sn_cnodeid_to_nasid table which was just initialized if this
	 * isn't cpu 0.
	 * Has to be done before assignment below.
	 * Has to be done before assignment below.
	 */
	 */
	if (!wars_have_been_checked) {
	if (!wars_have_been_checked) {
@@ -580,8 +586,7 @@ static void __init scan_for_ionodes(void)
		brd = find_lboard_any(brd, KLTYPE_SNIA);
		brd = find_lboard_any(brd, KLTYPE_SNIA);


		while (brd) {
		while (brd) {
			pda->cnodeid_to_nasid_table[numionodes] =
			sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
			    brd->brd_nasid;
			physical_node_map[brd->brd_nasid] = numionodes;
			physical_node_map[brd->brd_nasid] = numionodes;
			root_lboard[numionodes] = brd;
			root_lboard[numionodes] = brd;
			numionodes++;
			numionodes++;
@@ -602,8 +607,7 @@ static void __init scan_for_ionodes(void)
				      root_lboard[nasid_to_cnodeid(nasid)],
				      root_lboard[nasid_to_cnodeid(nasid)],
				      KLTYPE_TIO);
				      KLTYPE_TIO);
		while (brd) {
		while (brd) {
			pda->cnodeid_to_nasid_table[numionodes] =
			sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
			    brd->brd_nasid;
			physical_node_map[brd->brd_nasid] = numionodes;
			physical_node_map[brd->brd_nasid] = numionodes;
			root_lboard[numionodes] = brd;
			root_lboard[numionodes] = brd;
			numionodes++;
			numionodes++;
@@ -614,7 +618,6 @@ static void __init scan_for_ionodes(void)
			brd = find_lboard_any(brd, KLTYPE_TIO);
			brd = find_lboard_any(brd, KLTYPE_TIO);
		}
		}
	}
	}

}
}


int
int
+10 −1
Original line number Original line Diff line number Diff line
@@ -5,7 +5,7 @@
 *
 *
 * SGI specific setup.
 * SGI specific setup.
 *
 *
 * Copyright (C) 1995-1997,1999,2001-2004 Silicon Graphics, Inc.  All rights reserved.
 * Copyright (C) 1995-1997,1999,2001-2005 Silicon Graphics, Inc.  All rights reserved.
 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
 */
 */
#ifndef _ASM_IA64_SN_ARCH_H
#ifndef _ASM_IA64_SN_ARCH_H
@@ -47,6 +47,15 @@ DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
#define MAX_COMPACT_NODES	2048
#define MAX_COMPACT_NODES	2048
#define CPUS_PER_NODE		4
#define CPUS_PER_NODE		4



/*
 * 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_NUMNODES]);
#define sn_cnodeid_to_nasid	(&__get_cpu_var(__sn_cnodeid_to_nasid[0]))


extern void sn_flush_all_caches(long addr, long bytes);
extern void sn_flush_all_caches(long addr, long bytes);


#endif /* _ASM_IA64_SN_ARCH_H */
#endif /* _ASM_IA64_SN_ARCH_H */
+0 −1
Original line number Original line Diff line number Diff line
@@ -49,7 +49,6 @@ typedef struct pda_s {


	unsigned long	sn_soft_irr[4];
	unsigned long	sn_soft_irr[4];
	unsigned long	sn_in_service_ivecs[4];
	unsigned long	sn_in_service_ivecs[4];
	short		cnodeid_to_nasid_table[MAX_NUMNODES];
	int		sn_lb_int_war_ticks;
	int		sn_lb_int_war_ticks;
	int		sn_last_irq;
	int		sn_last_irq;
	int		sn_first_irq;
	int		sn_first_irq;
+2 −5
Original line number Original line Diff line number Diff line
@@ -4,7 +4,7 @@
 * License.  See the file "COPYING" in the main directory of this archive
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 * for more details.
 *
 *
 * Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
 * Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
 */
 */




@@ -123,11 +123,8 @@ extern int nasid_slice_to_cpuid(int, int);


/*
/*
 * cnodeid_to_nasid - convert a cnodeid to a NASID
 * cnodeid_to_nasid - convert a cnodeid to a NASID
 *	Macro relies on pg_data for a node being on the node itself.
 *	Just extract the NASID from the pointer.
 *
 */
 */
#define cnodeid_to_nasid(cnodeid)	pda->cnodeid_to_nasid_table[cnodeid]
#define cnodeid_to_nasid(cnodeid)	(sn_cnodeid_to_nasid[cnodeid])
 
 
/*
/*
 * nasid_to_cnodeid - convert a NASID to a cnodeid
 * nasid_to_cnodeid - convert a NASID to a cnodeid