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x86: call vsmp_init explicitly

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It becomes to early for ioremap, so we use early_ioremap

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Acked-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Glauber Costa 2008-02-11 17:16:03 -02:00 committed by Ingo Molnar
parent a2beab31b1
commit 2785c8d052
3 changed files with 13 additions and 6 deletions
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4
arch/x86/kernel/setup_64.c
View file

@ -345,6 +345,10 @@ void __init setup_arch(char **cmdline_p)
if (efi_enabled)
efi_init();
#ifdef CONFIG_PARAVIRT
vsmp_init();
#endif
dmi_scan_machine();
io_delay_init();

11
arch/x86/kernel/vsmp_64.c
View file

@ -16,10 +16,10 @@
#include <asm/pci-direct.h>
#include <asm/io.h>
static void __init vsmp_init(void)
void __init vsmp_init(void)
{
void *address;
unsigned int cap, ctl;
unsigned int cap, ctl, cfg;
if (!early_pci_allowed())
return;
@ -32,7 +32,8 @@ static void __init vsmp_init(void)
return;
/* set vSMP magic bits to indicate vSMP capable kernel */
address = ioremap(read_pci_config(0, 0x1f, 0, PCI_BASE_ADDRESS_0), 8);
cfg = read_pci_config(0, 0x1f, 0, PCI_BASE_ADDRESS_0);
address = early_ioremap(cfg, 8);
cap = readl(address);
ctl = readl(address + 4);
printk(KERN_INFO "vSMP CTL: capabilities:0x%08x control:0x%08x\n",
@ -45,8 +46,6 @@ static void __init vsmp_init(void)
printk(KERN_INFO "vSMP CTL: control set to:0x%08x\n", ctl);
}
iounmap(address);
early_iounmap(address, 8);
return;
}
core_initcall(vsmp_init);

4
include/asm-x86/setup.h
View file

@ -4,6 +4,10 @@
#define COMMAND_LINE_SIZE 2048
#ifndef __ASSEMBLY__
/* Interrupt control for vSMPowered x86_64 systems */
void vsmp_init(void);
char *machine_specific_memory_setup(void);
#ifndef CONFIG_PARAVIRT
#define paravirt_post_allocator_init() do {} while (0)