sh: Move over the SH-5 head.S and tlb.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/include/asm-sh/tlb_64.h b/include/asm-sh/tlb_64.h
new file mode 100644
index 000000000000..0308e05fc57b
--- /dev/null
+++ b/include/asm-sh/tlb_64.h
@@ -0,0 +1,69 @@
+/*
+ * include/asm-sh/tlb_64.h
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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_SH_TLB_64_H
+#define __ASM_SH_TLB_64_H
+
+/* ITLB defines */
+#define ITLB_FIXED      0x00000000      /* First fixed ITLB, see head.S */
+#define ITLB_LAST_VAR_UNRESTRICTED      0x000003F0      /* Last ITLB */
+
+/* DTLB defines */
+#define DTLB_FIXED      0x00800000      /* First fixed DTLB, see head.S */
+#define DTLB_LAST_VAR_UNRESTRICTED      0x008003F0      /* Last DTLB */
+
+#ifndef __ASSEMBLY__
+
+/**
+ * for_each_dtlb_entry
+ *
+ * @tlb:        TLB entry
+ *
+ * Iterate over free (non-wired) DTLB entries
+ */
+#define for_each_dtlb_entry(tlb)                \
+        for (tlb  = cpu_data->dtlb.first;       \
+             tlb <= cpu_data->dtlb.last;        \
+             tlb += cpu_data->dtlb.step)
+
+/**
+ * for_each_itlb_entry
+ *
+ * @tlb:        TLB entry
+ *
+ * Iterate over free (non-wired) ITLB entries
+ */
+#define for_each_itlb_entry(tlb)                \
+        for (tlb  = cpu_data->itlb.first;       \
+             tlb <= cpu_data->itlb.last;        \
+             tlb += cpu_data->itlb.step)
+
+/**
+ * __flush_tlb_slot
+ *
+ * @slot:       Address of TLB slot.
+ *
+ * Flushes TLB slot @slot.
+ */
+static inline void __flush_tlb_slot(unsigned long long slot)
+{
+        __asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
+}
+
+/* arch/sh64/mm/tlb.c */
+int sh64_tlb_init(void);
+unsigned long long sh64_next_free_dtlb_entry(void);
+unsigned long long sh64_get_wired_dtlb_entry(void);
+int sh64_put_wired_dtlb_entry(unsigned long long entry);
+void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr,
+                         unsigned long asid, unsigned long paddr);
+void sh64_teardown_tlb_slot(unsigned long long config_addr);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_SH_TLB_64_H */