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Commit c30f91b6 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] topology: move topology sysinfo code 



Move the topology sysinfo SYSIB definitions to the proper place in
asm/sysinfo.h where they should be.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 9186d7a9

arch/s390/include/asm/sysinfo.h

+35 −0
Original line number Diff line number Diff line
@@ -14,6 +14,8 @@ 
#ifndef __ASM_S390_SYSINFO_H

#define __ASM_S390_SYSINFO_H



#include <asm/bitsperlong.h>



struct sysinfo_1_1_1 {

	unsigned short :16;

	unsigned char ccr;
@@ -107,6 +109,39 @@ struct sysinfo_3_2_2 { 
	char reserved_544[3552];

};



#define TOPOLOGY_CPU_BITS	64

#define TOPOLOGY_NR_MAG		6



struct topology_cpu {

	unsigned char reserved0[4];

	unsigned char :6;

	unsigned char pp:2;

	unsigned char reserved1;

	unsigned short origin;

	unsigned long mask[TOPOLOGY_CPU_BITS / BITS_PER_LONG];

};



struct topology_container {

	unsigned char reserved[7];

	unsigned char id;

};



union topology_entry {

	unsigned char nl;

	struct topology_cpu cpu;

	struct topology_container container;

};



struct sysinfo_15_1_x {

	unsigned char reserved0[2];

	unsigned short length;

	unsigned char mag[TOPOLOGY_NR_MAG];

	unsigned char reserved1;

	unsigned char mnest;

	unsigned char reserved2[4];

	union topology_entry tle[0];

};



static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)

{

	register int r0 asm("0") = (fc << 28) | sel1;

arch/s390/kernel/topology.c

+21 −54
Original line number Diff line number Diff line
@@ -20,43 +20,10 @@ 
#include <asm/s390_ext.h>

#include <asm/sysinfo.h>



#define CPU_BITS 64

#define NR_MAG 6



#define PTF_HORIZONTAL	(0UL)

#define PTF_VERTICAL	(1UL)

#define PTF_CHECK	(2UL)



struct tl_cpu {

	unsigned char reserved0[4];

	unsigned char :6;

	unsigned char pp:2;

	unsigned char reserved1;

	unsigned short origin;

	unsigned long mask[CPU_BITS / BITS_PER_LONG];

};



struct tl_container {

	unsigned char reserved[7];

	unsigned char id;

};



union tl_entry {

	unsigned char nl;

	struct tl_cpu cpu;

	struct tl_container container;

};



struct tl_info {

	unsigned char reserved0[2];

	unsigned short length;

	unsigned char mag[NR_MAG];

	unsigned char reserved1;

	unsigned char mnest;

	unsigned char reserved2[4];

	union tl_entry tle[0];

};



struct mask_info {

	struct mask_info *next;

	unsigned char id;
@@ -65,7 +32,7 @@ struct mask_info { 


static int topology_enabled = 1;

static void topology_work_fn(struct work_struct *work);

static struct tl_info *tl_info;

static struct sysinfo_15_1_x *tl_info;

static struct timer_list topology_timer;

static void set_topology_timer(void);

static DECLARE_WORK(topology_work, topology_work_fn);
@@ -101,18 +68,18 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) 
	return mask;

}



static void add_cpus_to_mask(struct tl_cpu *tl_cpu, struct mask_info *book,

			     struct mask_info *core)

static void add_cpus_to_mask(struct topology_cpu *tl_cpu,

			     struct mask_info *book, struct mask_info *core)

{

	unsigned int cpu;



	for (cpu = find_first_bit(&tl_cpu->mask[0], CPU_BITS);

	     cpu < CPU_BITS;

	     cpu = find_next_bit(&tl_cpu->mask[0], CPU_BITS, cpu + 1))

	for (cpu = find_first_bit(&tl_cpu->mask[0], TOPOLOGY_CPU_BITS);

	     cpu < TOPOLOGY_CPU_BITS;

	     cpu = find_next_bit(&tl_cpu->mask[0], TOPOLOGY_CPU_BITS, cpu + 1))

	{

		unsigned int rcpu, lcpu;



		rcpu = CPU_BITS - 1 - cpu + tl_cpu->origin;

		rcpu = TOPOLOGY_CPU_BITS - 1 - cpu + tl_cpu->origin;

		for_each_present_cpu(lcpu) {

			if (cpu_logical_map(lcpu) != rcpu)

				continue;
@@ -145,15 +112,14 @@ static void clear_masks(void) 
#endif

}



static union tl_entry *next_tle(union tl_entry *tle)

static union topology_entry *next_tle(union topology_entry *tle)

{

	if (tle->nl)

		return (union tl_entry *)((struct tl_container *)tle + 1);

	else

		return (union tl_entry *)((struct tl_cpu *)tle + 1);

	if (!tle->nl)

		return (union topology_entry *)((struct topology_cpu *)tle + 1);

	return (union topology_entry *)((struct topology_container *)tle + 1);

}



static void tl_to_cores(struct tl_info *info)

static void tl_to_cores(struct sysinfo_15_1_x *info)

{

#ifdef CONFIG_SCHED_BOOK

	struct mask_info *book = &book_info;
@@ -161,13 +127,13 @@ static void tl_to_cores(struct tl_info *info) 
	struct mask_info *book = NULL;

#endif

	struct mask_info *core = &core_info;

	union tl_entry *tle, *end;

	union topology_entry *tle, *end;





	spin_lock_irq(&topology_lock);

	clear_masks();

	tle = info->tle;

	end = (union tl_entry *)((unsigned long)info + info->length);

	end = (union topology_entry *)((unsigned long)info + info->length);

	while (tle < end) {

		switch (tle->nl) {

#ifdef CONFIG_SCHED_BOOK
@@ -263,7 +229,7 @@ static void store_topology(struct tl_info *info) 


int arch_update_cpu_topology(void)

{

	struct tl_info *info = tl_info;

	struct sysinfo_15_1_x *info = tl_info;

	struct sys_device *sysdev;

	int cpu;
@@ -333,13 +299,14 @@ out: 
}

__initcall(init_topology_update);



static void alloc_masks(struct tl_info *info, struct mask_info *mask, int offset)

static void alloc_masks(struct sysinfo_15_1_x *info, struct mask_info *mask,

			int offset)

{

	int i, nr_masks;



	nr_masks = info->mag[NR_MAG - offset];

	nr_masks = info->mag[TOPOLOGY_NR_MAG - offset];

	for (i = 0; i < info->mnest - offset; i++)

		nr_masks *= info->mag[NR_MAG - offset - 1 - i];

		nr_masks *= info->mag[TOPOLOGY_NR_MAG - offset - 1 - i];

	nr_masks = max(nr_masks, 1);

	for (i = 0; i < nr_masks; i++) {

		mask->next = alloc_bootmem(sizeof(struct mask_info));
@@ -349,7 +316,7 @@ static void alloc_masks(struct tl_info *info, struct mask_info *mask, int offset 


void __init s390_init_cpu_topology(void)

{

	struct tl_info *info;

	struct sysinfo_15_1_x *info;

	int i;



	if (!MACHINE_HAS_TOPOLOGY)
@@ -358,7 +325,7 @@ void __init s390_init_cpu_topology(void) 
	info = tl_info;

	store_topology(info);

	pr_info("The CPU configuration topology of the machine is:");

	for (i = 0; i < NR_MAG; i++)

	for (i = 0; i < TOPOLOGY_NR_MAG; i++)

		printk(" %d", info->mag[i]);

	printk(" / %d\n", info->mnest);

	alloc_masks(info, &core_info, 2);