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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/rtas/rtas_call.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/rtas/rtas_call.c')
-rw-r--r--qemu/roms/SLOF/rtas/rtas_call.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/rtas/rtas_call.c b/qemu/roms/SLOF/rtas/rtas_call.c
new file mode 100644
index 000000000..8c7532c01
--- /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;
+ }
+
+}