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[S390] Get rid of additional_cpus kernel parameter.

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It caused only a lot of confusion. From now on cpu hotplug of up to
NR_CPUS will work by default. If somebody wants to limit that then
the possible_cpus parameter can be used.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2008-01-26 14:11:05 +01:00
zatwierdzone przez Martin Schwidefsky
rodzic 519580fc17
commit 48483b3290
7 zmienionych plików z 79 dodań i 155 usunięć
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46
drivers/s390/char/sclp_cmd.c
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@@ -191,9 +191,6 @@ struct read_cpu_info_sccb {
u8 reserved[4096 - 16];
} __attribute__((packed, aligned(PAGE_SIZE)));
static struct read_cpu_info_sccb __initdata early_read_cpu_info_sccb;
static struct sclp_cpu_info __initdata sclp_cpu_info;
static void sclp_fill_cpu_info(struct sclp_cpu_info *info,
struct read_cpu_info_sccb *sccb)
{
@@ -208,48 +205,16 @@ static void sclp_fill_cpu_info(struct sclp_cpu_info *info,
info->combined * sizeof(struct sclp_cpu_entry));
}
void __init sclp_read_cpu_info_early(void)
{
int rc;
struct read_cpu_info_sccb *sccb;
if (!SCLP_HAS_CPU_INFO)
return;
sccb = &early_read_cpu_info_sccb;
do {
memset(sccb, 0, sizeof(*sccb));
sccb->header.length = sizeof(*sccb);
rc = sclp_cmd_sync_early(SCLP_CMDW_READ_CPU_INFO, sccb);
} while (rc == -EBUSY);
if (rc)
return;
if (sccb->header.response_code != 0x10)
return;
sclp_fill_cpu_info(&sclp_cpu_info, sccb);
}
static int __init sclp_get_cpu_info_early(struct sclp_cpu_info *info)
{
if (!SCLP_HAS_CPU_INFO)
return -EOPNOTSUPP;
*info = sclp_cpu_info;
return 0;
}
static int sclp_get_cpu_info_late(struct sclp_cpu_info *info)
int sclp_get_cpu_info(struct sclp_cpu_info *info)
{
int rc;
struct read_cpu_info_sccb *sccb;
if (!SCLP_HAS_CPU_INFO)
return -EOPNOTSUPP;
sccb = (struct read_cpu_info_sccb *) __get_free_page(GFP_KERNEL
| GFP_DMA);
sccb = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!sccb)
return -ENOMEM;
memset(sccb, 0, sizeof(*sccb));
sccb->header.length = sizeof(*sccb);
rc = do_sync_request(SCLP_CMDW_READ_CPU_INFO, sccb);
if (rc)
@@ -266,13 +231,6 @@ out:
return rc;
}
int __init_refok sclp_get_cpu_info(struct sclp_cpu_info *info)
{
if (slab_is_available())
return sclp_get_cpu_info_late(info);
return sclp_get_cpu_info_early(info);
}
struct cpu_configure_sccb {
struct sccb_header header;
} __attribute__((packed, aligned(8)));