Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / post / lib_powerpc / string.c

diff --git a/qemu/roms/u-boot/post/lib_powerpc/string.c b/qemu/roms/u-boot/post/lib_powerpc/string.c
new file mode 100644 (file)
index 0000000..930193b
--- /dev/null
+++ b/qemu/roms/u-boot/post/lib_powerpc/string.c
@@ -0,0 +1,91 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+
+/*
+ * CPU test
+ * Load/store string instructions:     lswi, stswi, lswx, stswx
+ *
+ * Several consecutive bytes from a source memory buffer are loaded
+ * left to right into GPRs. After that, the bytes are stored
+ * from the GPRs into a target memory buffer. The contents
+ * of the source and target buffers are then compared.
+ */
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CONFIG_SYS_POST_CPU
+
+extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2);
+extern void cpu_post_exec_04 (ulong *code, ulong op1, ulong op2, ulong op3,
+    ulong op4);
+
+#include <bedbug/regs.h>
+int cpu_post_test_string (void)
+{
+    int ret = 0;
+    unsigned int i;
+    int flag = disable_interrupts();
+
+    if (ret == 0)
+    {
+       char src [31], dst [31];
+
+       ulong code[] =
+       {
+           ASM_LSWI(5, 3, 31),
+           ASM_STSWI(5, 4, 31),
+           ASM_BLR,
+       };
+
+       for (i = 0; i < sizeof(src); i ++)
+       {
+           src[i] = (char) i;
+           dst[i] = 0;
+       }
+
+       cpu_post_exec_02(code, (ulong)src, (ulong)dst);
+
+       ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
+    }
+
+    if (ret == 0)
+    {
+       char src [95], dst [95];
+
+       ulong code[] =
+       {
+           ASM_LSWX(8, 3, 5),
+           ASM_STSWX(8, 4, 5),
+           ASM_BLR,
+       };
+
+       for (i = 0; i < sizeof(src); i ++)
+       {
+           src[i] = (char) i;
+           dst[i] = 0;
+       }
+
+       cpu_post_exec_04(code, (ulong)src, (ulong)dst, 0, sizeof(src));
+
+       ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
+    }
+
+    if (ret != 0)
+    {
+       post_log ("Error at string test !\n");
+    }
+
+    if (flag)
+       enable_interrupts();
+
+    return ret;
+}
+
+#endif