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x86: uv: update XPC to handle updated BIOS interface

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The UV BIOS has moved the location of some of their pointers to the
"partition reserved page" from memory into a uv hub MMR.  The GRU does not
support bcopy operations from MMR space so we need to special case the MMR
addresses using VLOAD operations.

Additionally, the BIOS call for registering a message queue watchlist has
removed the 'blade' value and eliminated the structure that was being
passed in.  This is also reflected in this patch.

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 16:47:56 -08:00
committed by Linus Torvalds
parent 289750d1f1
commit c2c9f11574
5 changed files with 50 additions and 32 deletions
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13
drivers/misc/sgi-xp/xpc_partition.c
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@@ -18,6 +18,7 @@
#include <linux/device.h>
#include <linux/hardirq.h>
#include "xpc.h"
#include <asm/uv/uv_hub.h>
/* XPC is exiting flag */
int xpc_exiting;
@@ -92,8 +93,12 @@ xpc_get_rsvd_page_pa(int nasid)
break;
/* !!! L1_CACHE_ALIGN() is only a sn2-bte_copy requirement */
if (L1_CACHE_ALIGN(len) > buf_len) {
kfree(buf_base);
if (is_shub())
len = L1_CACHE_ALIGN(len);
if (len > buf_len) {
if (buf_base != NULL)
kfree(buf_base);
buf_len = L1_CACHE_ALIGN(len);
buf = xpc_kmalloc_cacheline_aligned(buf_len, GFP_KERNEL,
&buf_base);
@@ -105,7 +110,7 @@ xpc_get_rsvd_page_pa(int nasid)
}
}
ret = xp_remote_memcpy(xp_pa(buf), rp_pa, buf_len);
ret = xp_remote_memcpy(xp_pa(buf), rp_pa, len);
if (ret != xpSuccess) {
dev_dbg(xpc_part, "xp_remote_memcpy failed %d\n", ret);
break;
@@ -143,7 +148,7 @@ xpc_setup_rsvd_page(void)
dev_err(xpc_part, "SAL failed to locate the reserved page\n");
return -ESRCH;
}
rp = (struct xpc_rsvd_page *)__va(rp_pa);
rp = (struct xpc_rsvd_page *)__va(xp_socket_pa(rp_pa));
if (rp->SAL_version < 3) {
/* SAL_versions < 3 had a SAL_partid defined as a u8 */