From 86446d3a5d9d3ca81e85d1ccd3accaaae6f8e3c9 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 18 Jul 2008 11:03:35 +0200
Subject: [PATCH] POST: Add disable interrupts in some of the missing CPU POST
 tests

Some CPU POST tests did not disable the interrupts while running. This
seems to be necessary to protect this self modifying code.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 post/lib_ppc/b.c       | 4 ++++
 post/lib_ppc/cmp.c     | 4 ++++
 post/lib_ppc/cmpi.c    | 4 ++++
 post/lib_ppc/complex.c | 4 ++++
 post/lib_ppc/cr.c      | 4 ++++
 post/lib_ppc/load.c    | 4 ++++
 post/lib_ppc/multi.c   | 4 ++++
 post/lib_ppc/store.c   | 4 ++++
 post/lib_ppc/string.c  | 4 ++++
 9 files changed, 36 insertions(+)

diff --git a/post/lib_ppc/b.c b/post/lib_ppc/b.c
index 45b9ff26e..7a2583dc7 100644
--- a/post/lib_ppc/b.c
+++ b/post/lib_ppc/b.c
@@ -95,6 +95,7 @@ int cpu_post_test_b (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     if (ret == 0)
     {
@@ -188,6 +189,9 @@ int cpu_post_test_b (void)
 	}
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/cmp.c b/post/lib_ppc/cmp.c
index 8d80f86aa..13809d417 100644
--- a/post/lib_ppc/cmp.c
+++ b/post/lib_ppc/cmp.c
@@ -102,6 +102,7 @@ int cpu_post_test_cmp (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     for (i = 0; i < cpu_post_cmp_size && ret == 0; i++)
     {
@@ -124,6 +125,9 @@ int cpu_post_test_cmp (void)
 	}
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/cmpi.c b/post/lib_ppc/cmpi.c
index 92b4d57b1..5ecfe872a 100644
--- a/post/lib_ppc/cmpi.c
+++ b/post/lib_ppc/cmpi.c
@@ -102,6 +102,7 @@ int cpu_post_test_cmpi (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     for (i = 0; i < cpu_post_cmpi_size && ret == 0; i++)
     {
@@ -124,6 +125,9 @@ int cpu_post_test_cmpi (void)
 	}
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/complex.c b/post/lib_ppc/complex.c
index 271392a0e..4983c5191 100644
--- a/post/lib_ppc/complex.c
+++ b/post/lib_ppc/complex.c
@@ -101,6 +101,7 @@ static int cpu_post_test_complex_2 (void)
 int cpu_post_test_complex (void)
 {
     int ret = 0;
+    int flag = disable_interrupts();
 
     if (ret == 0)
     {
@@ -117,6 +118,9 @@ int cpu_post_test_complex (void)
 	post_log ("Error at complex test !\n");
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/cr.c b/post/lib_ppc/cr.c
index 0bd9e748f..2c7976ac3 100644
--- a/post/lib_ppc/cr.c
+++ b/post/lib_ppc/cr.c
@@ -248,6 +248,7 @@ int cpu_post_test_cr (void)
     int ret = 0;
     unsigned int i;
     unsigned long cr_sav;
+    int flag = disable_interrupts();
 
     asm ( "mfcr %0" : "=r" (cr_sav) : );
 
@@ -347,6 +348,9 @@ int cpu_post_test_cr (void)
 
     asm ( "mtcr %0" : : "r" (cr_sav));
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/load.c b/post/lib_ppc/load.c
index 86bc2234c..eccebb7ca 100644
--- a/post/lib_ppc/load.c
+++ b/post/lib_ppc/load.c
@@ -178,6 +178,7 @@ int cpu_post_test_load (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     for (i = 0; i < cpu_post_load_size && ret == 0; i++)
     {
@@ -246,6 +247,9 @@ int cpu_post_test_load (void)
 	}
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/multi.c b/post/lib_ppc/multi.c
index 5d3f58428..47135abd4 100644
--- a/post/lib_ppc/multi.c
+++ b/post/lib_ppc/multi.c
@@ -44,6 +44,7 @@ int cpu_post_test_multi (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     if (ret == 0)
     {
@@ -72,6 +73,9 @@ int cpu_post_test_multi (void)
 	post_log ("Error at multi test !\n");
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/store.c b/post/lib_ppc/store.c
index 09ec48554..c96f263e3 100644
--- a/post/lib_ppc/store.c
+++ b/post/lib_ppc/store.c
@@ -163,6 +163,7 @@ int cpu_post_test_store (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     for (i = 0; i < cpu_post_store_size && ret == 0; i++)
     {
@@ -226,6 +227,9 @@ int cpu_post_test_store (void)
 	}
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }
 
diff --git a/post/lib_ppc/string.c b/post/lib_ppc/string.c
index b2daa8804..3683ac995 100644
--- a/post/lib_ppc/string.c
+++ b/post/lib_ppc/string.c
@@ -47,6 +47,7 @@ int cpu_post_test_string (void)
 {
     int ret = 0;
     unsigned int i;
+    int flag = disable_interrupts();
 
     if (ret == 0)
     {
@@ -97,6 +98,9 @@ int cpu_post_test_string (void)
 	post_log ("Error at string test !\n");
     }
 
+    if (flag)
+	enable_interrupts();
+
     return ret;
 }