1 files changed, 48 insertions, 0 deletions

diff --git a/include/asm-sh/cpu-sh4/sq.h b/include/asm-sh/cpu-sh4/sq.h
new file mode 100644
index 000000000000..366b09166d3b
--- /dev/null
+++ b/include/asm-sh/cpu-sh4/sq.h
@@ -0,0 +1,48 @@
+/*
+ * include/asm-sh/cpu-sh4/sq.h
+ *
+ * Copyright (C) 2001, 2002, 2003  Paul Mundt
+ * Copyright (C) 2001, 2002  M. R. Brown
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH4_SQ_H
+#define __ASM_CPU_SH4_SQ_H
+
+#include <asm/addrspace.h>
+
+/*
+ * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
+ * mapped to any physical address space. Since data is written (and aligned)
+ * to 32-byte boundaries, we need to be sure that all allocations are aligned.
+ */ 
+#define SQ_SIZE                 32
+#define SQ_ALIGN_MASK           (~(SQ_SIZE - 1))
+#define SQ_ALIGN(addr)          (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
+
+#define SQ_QACR0                (P4SEG_REG_BASE  + 0x38)
+#define SQ_QACR1                (P4SEG_REG_BASE  + 0x3c)
+#define SQ_ADDRMAX              (P4SEG_STORE_QUE + 0x04000000)
+
+struct sq_mapping {
+        const char *name;
+
+        unsigned long sq_addr;
+        unsigned long addr;
+        unsigned int size;
+
+        struct list_head list;
+};
+
+/* arch/sh/kernel/cpu/sh4/sq.c */
+extern struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name);
+extern void sq_unmap(struct sq_mapping *map);
+
+extern void sq_clear(unsigned long addr, unsigned int len);
+extern void sq_flush(void *addr);
+extern void sq_flush_range(unsigned long start, unsigned int len);
+
+#endif /* __ASM_CPU_SH4_SQ_H */
+