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x86: uv: xpc needs to provide an abstraction for uv_gpa 

Provide an SGI SN2/UV agnositic method for converting a global physical
address into a socket physical address.

Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Robin Holt 2009-12-15 16:47:53 -08:00 committed by Linus Torvalds
parent 729d69e699
commit 682128939f
4 changed files with 24 additions and 0 deletions
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1
drivers/misc/sgi-xp/xp.h
View File

@ -339,6 +339,7 @@ extern short xp_partition_id;
extern u8 xp_region_size;
extern unsigned long (*xp_pa) (void *);
extern unsigned long (*xp_socket_pa) (unsigned long);
extern enum xp_retval (*xp_remote_memcpy) (unsigned long, const unsigned long,
size_t);
extern int (*xp_cpu_to_nasid) (int);

3
drivers/misc/sgi-xp/xp_main.c
View File

@ -44,6 +44,9 @@ EXPORT_SYMBOL_GPL(xp_region_size);
unsigned long (*xp_pa) (void *addr);
EXPORT_SYMBOL_GPL(xp_pa);
unsigned long (*xp_socket_pa) (unsigned long gpa);
EXPORT_SYMBOL_GPL(xp_socket_pa);
enum xp_retval (*xp_remote_memcpy) (unsigned long dst_gpa,
const unsigned long src_gpa, size_t len);
EXPORT_SYMBOL_GPL(xp_remote_memcpy);

10
drivers/misc/sgi-xp/xp_sn2.c
View File

@ -83,6 +83,15 @@ xp_pa_sn2(void *addr)
return __pa(addr);
}
/*
* Convert a global physical to a socket physical address.
*/
static unsigned long
xp_socket_pa_sn2(unsigned long gpa)
{
return gpa;
}
/*
* Wrapper for bte_copy().
*
@ -162,6 +171,7 @@ xp_init_sn2(void)
xp_region_size = sn_region_size;
xp_pa = xp_pa_sn2;
xp_socket_pa = xp_socket_pa_sn2;
xp_remote_memcpy = xp_remote_memcpy_sn2;
xp_cpu_to_nasid = xp_cpu_to_nasid_sn2;
xp_expand_memprotect = xp_expand_memprotect_sn2;

10
drivers/misc/sgi-xp/xp_uv.c
View File

@ -32,6 +32,15 @@ xp_pa_uv(void *addr)
return uv_gpa(addr);
}
/*
* Convert a global physical to socket physical address.
*/
static unsigned long
xp_socket_pa_uv(unsigned long gpa)
{
return uv_gpa_to_soc_phys_ram(gpa);
}
static enum xp_retval
xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa,
size_t len)
@ -123,6 +132,7 @@ xp_init_uv(void)
xp_region_size = sn_region_size;
xp_pa = xp_pa_uv;
xp_socket_pa = xp_socket_pa_uv;
xp_remote_memcpy = xp_remote_memcpy_uv;
xp_cpu_to_nasid = xp_cpu_to_nasid_uv;
xp_expand_memprotect = xp_expand_memprotect_uv;