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x86: uv: Add UV reserved page bios call

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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>
This commit is contained in:
Russ Anderson 2008-11-05 22:15:13 -06:00 committed by H. Peter Anvin
parent e8929c8a6a
commit 23c357003b
2 changed files with 15 additions and 1 deletions
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5
arch/x86/include/asm/uv/bios.h
View File

@ -35,13 +35,15 @@ enum uv_bios_cmd {
UV_BIOS_FREQ_BASE, UV_BIOS_FREQ_BASE,
UV_BIOS_WATCHLIST_ALLOC, UV_BIOS_WATCHLIST_ALLOC,
UV_BIOS_WATCHLIST_FREE, UV_BIOS_WATCHLIST_FREE,
UV_BIOS_MEMPROTECT UV_BIOS_MEMPROTECT,
UV_BIOS_GET_PARTITION_ADDR
}; };
/* /*
* Status values returned from a BIOS call. * Status values returned from a BIOS call.
*/ */
enum { enum {
BIOS_STATUS_MORE_PASSES = 1,
BIOS_STATUS_SUCCESS = 0, BIOS_STATUS_SUCCESS = 0,
BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
BIOS_STATUS_EINVAL = -EINVAL, BIOS_STATUS_EINVAL = -EINVAL,
@ -102,6 +104,7 @@ extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int,
unsigned long *); unsigned long *);
extern int uv_bios_mq_watchlist_free(int, int); extern int uv_bios_mq_watchlist_free(int, int);
extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); 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); extern void uv_bios_init(void);

11
arch/x86/kernel/bios_uv.c
View File

@ -142,6 +142,17 @@ uv_bios_change_memprotect(u64 paddr, u64 len, enum uv_memprotect perms)
} }
EXPORT_SYMBOL_GPL(uv_bios_change_memprotect); 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) s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)
{ {
return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type, return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type,