1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/misc/hwmem/cache_handler.h b/drivers/misc/hwmem/cache_handler.h
new file mode 100644
index 00000000000..792105196fa
--- /dev/null
+++ b/drivers/misc/hwmem/cache_handler.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Cache handler
+ *
+ * Author: Johan Mossberg <johan.xx.mossberg@stericsson.com>
+ * for ST-Ericsson.
+ *
+ * License terms: GNU General Public License (GPL), version 2.
+ */
+
+/*
+ * Cache handler can not handle simultaneous execution! The caller has to
+ * ensure such a situation does not occur.
+ */
+
+#ifndef _CACHE_HANDLER_H_
+#define _CACHE_HANDLER_H_
+
+#include <linux/types.h>
+#include <linux/hwmem.h>
+
+/*
+ * To not have to double all datatypes we've used hwmem datatypes. If someone
+ * want's to use cache handler but not hwmem then we'll have to define our own
+ * datatypes.
+ */
+
+struct cach_range {
+	u32 start; /* Inclusive */
+	u32 end; /* Exclusive */
+};
+
+/*
+ * Internal, do not touch!
+ */
+struct cach_buf {
+	void *vstart;
+	u32 pstart;
+	u32 size;
+
+	/* Remaining hints are active */
+	enum hwmem_alloc_flags cache_settings;
+
+	bool in_cpu_write_buf;
+	struct cach_range range_in_cpu_cache;
+	struct cach_range range_dirty_in_cpu_cache;
+	struct cach_range range_invalid_in_cpu_cache;
+};
+
+void cach_init_buf(struct cach_buf *buf,
+			enum hwmem_alloc_flags cache_settings, u32 size);
+
+void cach_set_buf_addrs(struct cach_buf *buf, void* vaddr, u32 paddr);
+
+void cach_set_pgprot_cache_options(struct cach_buf *buf, pgprot_t *pgprot);
+
+void cach_set_domain(struct cach_buf *buf, enum hwmem_access access,
+			enum hwmem_domain domain, struct hwmem_region *region);
+
+#endif /* _CACHE_HANDLER_H_ */