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Subject[PATCH 7/7] x86: Add UV reserved page bios call
[PATCH 7/7] x86: Add UV reserved page bios call

Call to get the address of the reserved page.

Signed-off-by: Russ Anderson <rja@sgi.com>

---
arch/x86/kernel/bios_uv.c | 11 +++++++++++
include/asm-x86/uv/bios.h | 5 ++++-
2 files changed, 15 insertions(+), 1 deletion(-)

Index: linux/arch/x86/kernel/bios_uv.c
===================================================================
--- linux.orig/arch/x86/kernel/bios_uv.c 2008-10-15 11:42:14.000000000 -0500
+++ linux/arch/x86/kernel/bios_uv.c 2008-10-15 11:43:10.000000000 -0500
@@ -142,6 +142,17 @@ uv_bios_change_memprotect(u64 paddr, u64
}
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,
Index: linux/include/asm-x86/uv/bios.h
===================================================================
--- linux.orig/include/asm-x86/uv/bios.h 2008-10-15 11:42:14.000000000 -0500
+++ linux/include/asm-x86/uv/bios.h 2008-10-15 11:43:10.000000000 -0500
@@ -35,13 +35,15 @@ enum uv_bios_cmd {
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 @@ extern int uv_bios_mq_watchlist_alloc(in
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);

--
Russ Anderson, OS RAS/Partitioning Project Lead
SGI - Silicon Graphics Inc rja@sgi.com

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