Merge Stephen Rothwell's patches

1 files changed, 35 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/iseries/hvlog.c b/arch/powerpc/platforms/iseries/hvlog.c
new file mode 100644
index 00000000000..f61e2e9ac9e
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/hvlog.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2001  Mike Corrigan IBM Corporation
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <asm/page.h>
+#include <asm/abs_addr.h>
+#include <asm/iSeries/HvCall.h>
+#include <asm/iSeries/HvCallSc.h>
+#include <asm/iSeries/HvTypes.h>
+
+
+void HvCall_writeLogBuffer(const void *buffer, u64 len)
+{
+        struct HvLpBufferList hv_buf;
+        u64 left_this_page;
+        u64 cur = virt_to_abs(buffer);
+
+        while (len) {
+                hv_buf.addr = cur;
+                left_this_page = ((cur & PAGE_MASK) + PAGE_SIZE) - cur;
+                if (left_this_page > len)
+                        left_this_page = len;
+                hv_buf.len = left_this_page;
+                len -= left_this_page;
+                HvCall2(HvCallBaseWriteLogBuffer,
+                                virt_to_abs(&hv_buf),
+                                left_this_page);
+                cur = (cur & PAGE_MASK) + PAGE_SIZE;
+        }
+}