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x86: check dsdt before find oem table for es7000, v2 

v2: use __acpi_unmap_table()

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-09-14 02:33:14 -07:00 committed by Ingo Molnar
parent a32ad46267
commit a73aaedd95
3 changed files with 39 additions and 10 deletions
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28
arch/x86/kernel/es7000_32.c
View File

@ -109,6 +109,7 @@ struct oem_table {
};
extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
#endif
struct mip_reg {
@ -243,21 +244,38 @@ parse_unisys_oem (char *oemptr)
}
#ifdef CONFIG_ACPI
int __init
find_unisys_acpi_oem_table(unsigned long *oem_addr)
static unsigned long oem_addrX;
static unsigned long oem_size;
int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
{
struct acpi_table_header *header = NULL;
int i = 0;
while (ACPI_SUCCESS(acpi_get_table("OEM1", i++, &header))) {
acpi_size tbl_size;
while (ACPI_SUCCESS(acpi_get_table_with_size("OEM1", i++, &header, &tbl_size))) {
if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
struct oem_table *t = (struct oem_table *)header;
*oem_addr = (unsigned long)__acpi_map_table(t->OEMTableAddr,
t->OEMTableSize);
oem_addrX = t->OEMTableAddr;
oem_size = t->OEMTableSize;
early_acpi_os_unmap_memory(header, tbl_size);
*oem_addr = (unsigned long)__acpi_map_table(oem_addrX,
oem_size);
return 0;
}
early_acpi_os_unmap_memory(header, tbl_size);
}
return -1;
}
void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
{
if (!oem_addr)
return;
__acpi_unmap_table((char *)oem_addr, oem_size);
}
#endif
static void

20
arch/x86/mach-generic/es7000.c
View File

@ -47,16 +47,26 @@ static __init int mps_oem_check(struct mp_config_table *mpc, char *oem,
/* Hook from generic ACPI tables.c */
static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
unsigned long oem_addr;
unsigned long oem_addr = 0;
int check_dsdt;
int ret = 0;
/* check dsdt at first to avoid clear fix_map for oem_addr */
check_dsdt = es7000_check_dsdt();
if (!find_unisys_acpi_oem_table(&oem_addr)) {
if (es7000_check_dsdt())
return parse_unisys_oem((char *)oem_addr);
if (check_dsdt)
ret = parse_unisys_oem((char *)oem_addr);
else {
setup_unisys();
return 1;
ret = 1;
}
/*
* we need to unmap it
*/
unmap_unisys_acpi_oem_table(oem_addr);
}
return 0;
return ret;
}
#else
static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)

1
include/asm-x86/es7000/mpparse.h
View File

@ -5,6 +5,7 @@
extern int parse_unisys_oem (char *oemptr);
extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
extern void setup_unisys(void);
#ifndef CONFIG_X86_GENERICARCH