1 files changed, 98 insertions, 0 deletions
diff --git a/payloads/libpayload/include/mips/arch/cache.h b/payloads/libpayload/include/mips/arch/cache.h
new file mode 100644
index 0000000000..9485671e98
--- /dev/null
+++ b/payloads/libpayload/include/mips/arch/cache.h
@@ -0,0 +1,98 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2014 Imagination Technologies
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __MIPS_ARCH_CACHE_H__
+#define __MIPS_ARCH_CACHE_H__
+
+
+#include <stddef.h>
+#include <stdint.h>
+
+
+/*
+ * Sync primitives
+ */
+
+/* data memory barrier */
+static inline void dmb(void)
+{
+	/* TODO */
+}
+
+/* data sync barrier */
+static inline void dsb(void)
+{
+	/* TODO */
+}
+
+/* instruction sync barrier */
+static inline void isb(void)
+{
+	/* TODO */
+}
+
+
+/*
+ * Cache maintenance API
+ */
+
+/* dcache clean and invalidate all */
+void dcache_clean_invalidate_all(void);
+
+/* dcache clean all */
+void dcache_clean_all(void);
+
+/* dcache invalidate all (on current level given by CCSELR) */
+void dcache_invalidate_all(void);
+
+/* returns number of bytes per cache line */
+unsigned int dcache_line_bytes(void);
+
+/* dcache and MMU disable */
+void dcache_mmu_disable(void);
+
+/* dcache and MMU enable */
+void dcache_mmu_enable(void);
+
+/* perform all icache/dcache maintenance needed after loading new code */
+void cache_sync_instructions(void);
+
+/* tlb invalidate all */
+void tlb_invalidate_all(void);
+
+/*
+ * Generalized setup/init functions
+ */
+
+/* mmu initialization (set page table address, set permissions, etc) */
+void mmu_init(void);
+
+enum dcache_policy {
+	DCACHE_OFF,
+	DCACHE_WRITEBACK,
+	DCACHE_WRITETHROUGH,
+};
+
+/* disable the mmu for a range. Primarily useful to lock out address 0. */
+void mmu_disable_range(unsigned long start_mb, unsigned long size_mb);
+/* mmu range configuration (set dcache policy) */
+void mmu_config_range(unsigned long start_mb, unsigned long size_mb,
+						enum dcache_policy policy);
+
+#endif /* __MIPS_ARCH_CACHE_H__ */