Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / SLOF / rtas / rtas_call.c

diff --git a/qemu/roms/SLOF/rtas/rtas_call.c b/qemu/roms/SLOF/rtas/rtas_call.c
new file mode 100644 (file)
index 0000000..8c7532c
--- /dev/null
+++ b/qemu/roms/SLOF/rtas/rtas_call.c
@@ -0,0 +1,93 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stdint.h>
+#include <rtas.h>
+#include "rtas_table.h"
+
+
+//#define _RTAS_TRACE
+//#define _RTAS_COUNT_CALLS
+
+
+#ifdef _RTAS_COUNT_CALLS
+int rtas_callcount[0x40] __attribute__((aligned (16)));
+#endif
+
+/* rtas_config is used to store the run-time configuration flags (which are
+ * provided by SLOF during instantiate-rtas) */
+long rtas_config;
+
+
+/* Prototype */
+void rtas_call (rtas_args_t *rtas_args);
+
+
+/* 
+Function: rtas_call
+       Input:
+               rtas_args: pointer to RTAS arguments structure
+       Output:
+               
+Decription: Handle RTAS call. This C function is called
+               from the asm function rtas_entry.
+*/
+
+void
+rtas_call (rtas_args_t *rtas_args)
+{
+       int idx;
+
+#ifdef _RTAS_COUNT_CALLS
+       /* Count how often every RTAS function is called. */
+       if (rtas_args->token < (int)(sizeof(rtas_callcount)/sizeof(rtas_callcount[0]))) {
+               static int callcount_initialized = 0;
+               /* If the array is used the first time, we have to set all entries to 0 */
+               if (!callcount_initialized) {
+                       unsigned int i;
+                       callcount_initialized = 1;
+                       for (i = 0; i < sizeof(rtas_callcount)/sizeof(rtas_callcount[0]); i++)
+                               rtas_callcount[i] = 0;
+               }
+               /* Increment the counter of the RTAS call */
+               rtas_callcount[rtas_args->token] += 1;
+       }
+#endif
+
+#ifdef _RTAS_TRACE
+       unsigned int parCnt = rtas_args->nargs;
+       unsigned int *pInt = rtas_args->args;
+       printf("\n\r*** rtas_call=0x%x", rtas_args->token);
+#ifdef _RTAS_COUNT_CALLS
+       printf(" count=0x%x", rtas_callcount[rtas_args->token]);
+#endif
+       printf(" len=0x%x", parCnt);
+       printf("\n\r ");
+       while(parCnt--) {
+               printf("0x%x ", *pInt++);
+       }
+#endif
+
+       idx = rtas_args->token - 1;
+
+       /* Check if there's a function for the token: */
+       if (idx >= 0 && idx < rtas_func_tab_size
+           && rtas_func_tab[idx].func != NULL) {
+               /* Now jump to the RTAS function: */
+               rtas_func_tab[idx].func(rtas_args);
+       }
+       else {
+               /* We didn't find a function - return error code: */
+               rtas_args->args[rtas_args->nargs] = -1;
+       }
+
+}