summaryrefslogtreecommitdiffstats
path: root/arch/m32r/include/asm/dcache_clear.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m32r/include/asm/dcache_clear.h')
-rw-r--r--arch/m32r/include/asm/dcache_clear.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/dcache_clear.h b/arch/m32r/include/asm/dcache_clear.h
new file mode 100644
index 000000000000..a0ae06c2e9e7
--- /dev/null
+++ b/arch/m32r/include/asm/dcache_clear.h
@@ -0,0 +1,29 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto
+ * Copyright (C) 2004, 2006 Hirokazu Takata <takata at linux-m32r.org>
+ */
+#ifndef _ASM_M32R_DCACHE_CLEAR_H
+#define _ASM_M32R_DCACHE_CLEAR_H
+
+#ifdef CONFIG_CHIP_M32700_TS1
+#define DCACHE_CLEAR(reg0, reg1, addr) \
+ "seth "reg1", #high(dcache_dummy); \n\t" \
+ "or3 "reg1", "reg1", #low(dcache_dummy); \n\t" \
+ "lock "reg0", @"reg1"; \n\t" \
+ "add3 "reg0", "addr", #0x1000; \n\t" \
+ "ld "reg0", @"reg0"; \n\t" \
+ "add3 "reg0", "addr", #0x2000; \n\t" \
+ "ld "reg0", @"reg0"; \n\t" \
+ "unlock "reg0", @"reg1"; \n\t"
+ /* FIXME: This workaround code cannot handle kernel modules
+ * correctly under SMP environment.
+ */
+#else /* CONFIG_CHIP_M32700_TS1 */
+#define DCACHE_CLEAR(reg0, reg1, addr)
+#endif /* CONFIG_CHIP_M32700_TS1 */
+
+#endif /* _ASM_M32R_DCACHE_CLEAR_H */
OpenPOWER on IntegriCloud