Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 131 insertions, 0 deletions

diff --git a/include/asm-s390/sigp.h b/include/asm-s390/sigp.h
new file mode 100644
index 000000000000..3979bc3858e2
--- /dev/null
+++ b/include/asm-s390/sigp.h
@@ -0,0 +1,131 @@
+/*
+ *  include/asm-s390/sigp.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *               Heiko Carstens (heiko.carstens@de.ibm.com)
+ *
+ *  sigp.h by D.J. Barrow (c) IBM 1999
+ *  contains routines / structures for signalling other S/390 processors in an
+ *  SMP configuration.
+ */
+
+#ifndef __SIGP__
+#define __SIGP__
+
+#include <asm/ptrace.h>
+#include <asm/atomic.h>
+
+/* get real cpu address from logical cpu number */
+extern volatile int __cpu_logical_map[];
+
+typedef enum
+{
+        sigp_unassigned=0x0,
+        sigp_sense,
+        sigp_external_call,
+        sigp_emergency_signal,
+        sigp_start,
+        sigp_stop,
+        sigp_restart,
+        sigp_unassigned1,
+        sigp_unassigned2,
+        sigp_stop_and_store_status,
+        sigp_unassigned3,
+        sigp_initial_cpu_reset,
+        sigp_cpu_reset,
+        sigp_set_prefix,
+        sigp_store_status_at_address,
+        sigp_store_extended_status_at_address
+} sigp_order_code;
+
+typedef __u32 sigp_status_word;
+
+typedef enum
+{
+        sigp_order_code_accepted=0,
+        sigp_status_stored,
+        sigp_busy,
+        sigp_not_operational
+} sigp_ccode;
+
+
+/*
+ * Definitions for the external call
+ */
+
+/* 'Bit' signals, asynchronous */
+typedef enum
+{
+        ec_schedule=0,
+        ec_call_function,
+        ec_bit_last
+} ec_bit_sig;
+
+/*
+ * Signal processor
+ */
+extern __inline__ sigp_ccode
+signal_processor(__u16 cpu_addr, sigp_order_code order_code)
+{
+        sigp_ccode ccode;
+
+        __asm__ __volatile__(
+                "    sr     1,1\n"        /* parameter=0 in gpr 1 */
+                "    sigp   1,%1,0(%2)\n"
+                "    ipm    %0\n"
+                "    srl    %0,28\n"
+                : "=d" (ccode)
+                : "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)
+                : "cc" , "memory", "1" );
+        return ccode;
+}
+
+/*
+ * Signal processor with parameter
+ */
+extern __inline__ sigp_ccode
+signal_processor_p(__u32 parameter, __u16 cpu_addr,
+                   sigp_order_code order_code)
+{
+        sigp_ccode ccode;
+        
+        __asm__ __volatile__(
+                "    lr     1,%1\n"       /* parameter in gpr 1 */
+                "    sigp   1,%2,0(%3)\n"
+                "    ipm    %0\n"
+                "    srl    %0,28\n"
+                : "=d" (ccode)
+                : "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
+                  "a" (order_code)
+                : "cc" , "memory", "1" );
+        return ccode;
+}
+
+/*
+ * Signal processor with parameter and return status
+ */
+extern __inline__ sigp_ccode
+signal_processor_ps(__u32 *statusptr, __u32 parameter,
+                    __u16 cpu_addr, sigp_order_code order_code)
+{
+        sigp_ccode ccode;
+        
+        __asm__ __volatile__(
+                "    sr     2,2\n"        /* clear status */
+                "    lr     3,%2\n"       /* parameter in gpr 3 */
+                "    sigp   2,%3,0(%4)\n"
+                "    st     2,%1\n"
+                "    ipm    %0\n"
+                "    srl    %0,28\n"
+                : "=d" (ccode), "=m" (*statusptr)
+                : "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
+                  "a" (order_code)
+                : "cc" , "memory", "2" , "3"
+                );
+   return ccode;
+}
+
+#endif /* __SIGP__ */