x86: uv: Add UV reserved page bios call
Add UV bios call to get the address of the reserved page.
Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index a301a56..da1c4e8 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -35,13 +35,15 @@
UV_BIOS_FREQ_BASE,
UV_BIOS_WATCHLIST_ALLOC,
UV_BIOS_WATCHLIST_FREE,
- UV_BIOS_MEMPROTECT
+ UV_BIOS_MEMPROTECT,
+ UV_BIOS_GET_PARTITION_ADDR
};
/*
* Status values returned from a BIOS call.
*/
enum {
+ BIOS_STATUS_MORE_PASSES = 1,
BIOS_STATUS_SUCCESS = 0,
BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
BIOS_STATUS_EINVAL = -EINVAL,
@@ -102,6 +104,7 @@
unsigned long *);
extern int uv_bios_mq_watchlist_free(int, int);
extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
+extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
extern void uv_bios_init(void);
diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c
index 7cf6fc3..d22d0f1 100644
--- a/arch/x86/kernel/bios_uv.c
+++ b/arch/x86/kernel/bios_uv.c
@@ -142,6 +142,17 @@
}
EXPORT_SYMBOL_GPL(uv_bios_change_memprotect);
+s64
+uv_bios_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
+{
+ s64 ret;
+
+ ret = uv_bios_call_irqsave(UV_BIOS_GET_PARTITION_ADDR, (u64)cookie,
+ (u64)addr, buf, (u64)len, 0);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(uv_bios_reserved_page_pa);
+
s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)
{
return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type,