From 6f6561babb56d891e88dbcd07646c23af2563ddd Mon Sep 17 00:00:00 2001
From: Patrick Williams <iawillia@us.ibm.com>
Date: Mon, 16 Jul 2012 21:37:56 -0500
Subject: cpu_spr_value syscall for SLW image build.

    Task 44887

Change-Id: If87b6e80b974bb4cbff13844d8a3f055a17282d2
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1378
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com>
Reviewed-by: Mark W. Wenning <wenning@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
---
 src/include/sys/misc.h | 67 +++++++++++++++++++++++++++++++++-----------------
 1 file changed, 44 insertions(+), 23 deletions(-)

(limited to 'src/include/sys')

diff --git a/src/include/sys/misc.h b/src/include/sys/misc.h
index 90ff57964..e1f8e42a7 100644
--- a/src/include/sys/misc.h
+++ b/src/include/sys/misc.h
@@ -1,25 +1,26 @@
-//  IBM_PROLOG_BEGIN_TAG
-//  This is an automatically generated prolog.
-//
-//  $Source: src/include/sys/misc.h $
-//
-//  IBM CONFIDENTIAL
-//
-//  COPYRIGHT International Business Machines Corp. 2011
-//
-//  p1
-//
-//  Object Code Only (OCO) source materials
-//  Licensed Internal Code Source Materials
-//  IBM HostBoot Licensed Internal Code
-//
-//  The source code for this program is not published or other-
-//  wise divested of its trade secrets, irrespective of what has
-//  been deposited with the U.S. Copyright Office.
-//
-//  Origin: 30
-//
-//  IBM_PROLOG_END
+/*  IBM_PROLOG_BEGIN_TAG
+ *  This is an automatically generated prolog.
+ *
+ *  $Source: src/include/sys/misc.h $
+ *
+ *  IBM CONFIDENTIAL
+ *
+ *  COPYRIGHT International Business Machines Corp. 2011-2012
+ *
+ *  p1
+ *
+ *  Object Code Only (OCO) source materials
+ *  Licensed Internal Code Source Materials
+ *  IBM HostBoot Licensed Internal Code
+ *
+ *  The source code for this program is not published or other-
+ *  wise divested of its trade secrets, irrespective of what has
+ *  been deposited with the U.S. Copyright Office.
+ *
+ *  Origin: 30
+ *
+ *  IBM_PROLOG_END_TAG
+ */
 #ifndef __SYS_MISC_H
 #define __SYS_MISC_H
 
@@ -40,7 +41,6 @@ enum ShutdownStatus
     SHUTDOWN_STATUS_INITSVC_FAILED      = 0x01230004,
 };
 
-
 #ifdef __cplusplus
 extern "C"
 {
@@ -112,6 +112,27 @@ size_t cpu_thread_count();
  */
 int cpu_start_core(uint64_t pir);
 
+/**
+ * @enum CpuSprNames
+ *
+ * Names for SPR registers for cpu_spr_value().
+ */
+enum CpuSprNames
+{
+    CPU_SPR_MSR,
+    CPU_SPR_LPCR,
+    CPU_SPR_HRMOR,
+};
+
+/** @fn cpu_spr_value
+ *  @brief Reads the kernel-desired value for an SPR.
+ *
+ *  This is used, for instance, in building a sleep-winkle image.
+ *
+ *  @return The desired value of the SPR register.
+ */
+uint64_t cpu_spr_value(CpuSprNames spr);
+
 #ifdef __cplusplus
 }
 #endif
-- 
cgit v1.2.1