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authorYinghai Lu <yhlu.kernel@gmail.com>2008-09-14 02:33:14 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-13 10:21:07 +0200
commita73aaedd95703bd49f4c3f9df06fb7b7373ba905 (patch)
treee912ceecc93975d59a3c95f20ec26b1ba8e01fc0 /arch/x86/kernel/es7000_32.c
parenta32ad4626776f09b30ef98a872a5f6fb64fe6607 (diff)
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>
Diffstat (limited to 'arch/x86/kernel/es7000_32.c')
-rw-r--r--arch/x86/kernel/es7000_32.c28
1 files changed, 23 insertions, 5 deletions
diff --git a/arch/x86/kernel/es7000_32.c b/arch/x86/kernel/es7000_32.c
index 849e5cd485b..f454c78fcef 100644
--- a/arch/x86/kernel/es7000_32.c
+++ b/arch/x86/kernel/es7000_32.c
@@ -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