diff options
| author | Dean Nelson <dcn@sgi.com> | 2008-07-29 22:34:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-30 09:41:50 -0700 |
| commit | a812dcc3a298eef650c381e094e2cf41a4ecc9ad (patch) | |
| tree | cb6a24a623891054789f5340742c3c8ff1fb8cde /drivers/misc/sgi-xp/xp_uv.c | |
| parent | 261f3b4979db88d29fc86aad9f76fbc0c2c6d21a (diff) | |
sgi-xp: add usage of GRU driver by xpc_remote_memcpy()
Add UV support to xpc_remote_memcpy(), which involves interfacing to the
GRU driver.
Signed-off-by: Dean Nelson <dcn@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-xp/xp_uv.c')
| -rw-r--r-- | drivers/misc/sgi-xp/xp_uv.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c index 382b1b6bcc0..44f2c2b58c2 100644 --- a/drivers/misc/sgi-xp/xp_uv.c +++ b/drivers/misc/sgi-xp/xp_uv.c @@ -13,13 +13,33 @@ * */ +#include <linux/device.h> +#include <asm/uv/uv_hub.h> +#include "../sgi-gru/grukservices.h" #include "xp.h" +/* + * Convert a virtual memory address to a physical memory address. + */ +static unsigned long +xp_pa_uv(void *addr) +{ + return uv_gpa(addr); +} + static enum xp_retval -xp_remote_memcpy_uv(void *vdst, const void *psrc, size_t len) +xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa, + size_t len) { - /* !!! this function needs fleshing out */ - return xpUnsupported; + int ret; + + ret = gru_copy_gpa(dst_gpa, src_gpa, len); + if (ret == 0) + return xpSuccess; + + dev_err(xp, "gru_copy_gpa() failed, dst_gpa=0x%016lx src_gpa=0x%016lx " + "len=%ld\n", dst_gpa, src_gpa, len); + return xpGruCopyError; } enum xp_retval @@ -29,6 +49,7 @@ xp_init_uv(void) xp_max_npartitions = XP_MAX_NPARTITIONS_UV; + xp_pa = xp_pa_uv; xp_remote_memcpy = xp_remote_memcpy_uv; return xpSuccess; |