linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / include / asm-ia64 / sn / xpc.h

diff --git a/include/asm-ia64/sn/xpc.h b/include/asm-ia64/sn/xpc.h
index aa3b8ac..f277b00 100644 (file)
--- a/include/asm-ia64/sn/xpc.h
+++ b/include/asm-ia64/sn/xpc.h
@@ -684,7 +684,8 @@ extern struct xpc_vars *xpc_vars;
 extern struct xpc_rsvd_page *xpc_rsvd_page;
 extern struct xpc_vars_part *xpc_vars_part;
 extern struct xpc_partition xpc_partitions[XP_MAX_PARTITIONS + 1];
-extern char xpc_remote_copy_buffer[];
+extern char *xpc_remote_copy_buffer;
+extern void *xpc_remote_copy_buffer_base;
 extern struct xpc_rsvd_page *xpc_rsvd_page_init(void);
 extern void xpc_allow_IPI_ops(void);
 extern void xpc_restrict_IPI_ops(void);
@@ -1227,6 +1228,28 @@ xpc_map_bte_errors(bte_result_t error)
 
 
 
+static inline void *
+xpc_kmalloc_cacheline_aligned(size_t size, gfp_t flags, void **base)
+{
+       /* see if kmalloc will give us cachline aligned memory by default */
+       *base = kmalloc(size, flags);
+       if (*base == NULL) {
+               return NULL;
+       }
+       if ((u64) *base == L1_CACHE_ALIGN((u64) *base)) {
+               return *base;
+       }
+       kfree(*base);
+
+       /* nope, we'll have to do it ourselves */
+       *base = kmalloc(size + L1_CACHE_BYTES, flags);
+       if (*base == NULL) {
+               return NULL;
+       }
+       return (void *) L1_CACHE_ALIGN((u64) *base);
+}
+
+
 /*
  * Check to see if there is any channel activity to/from the specified
  * partition.