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-rw-r--r--arch/sh/include/asm/tlb_64.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/sh/include/asm/tlb_64.h b/arch/sh/include/asm/tlb_64.h
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+++ b/arch/sh/include/asm/tlb_64.h
@@ -0,0 +1,71 @@
+/*
+ * 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 - Iterate over free (non-wired) DTLB entries
+ *
+ * @tlb: TLB entry
+ */
+#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 - Iterate over free (non-wired) ITLB entries
+ *
+ * @tlb: TLB entry
+ */
+#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 - Flushes TLB slot @slot.
+ *
+ * @slot: Address of TLB slot.
+ */
+static inline void __flush_tlb_slot(unsigned long long slot)
+{
+ __asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot));
+}
+
+#ifdef CONFIG_MMU
+/* 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);
+#else
+#define sh64_tlb_init() do { } while (0)
+#define sh64_next_free_dtlb_entry() (0)
+#define sh64_get_wired_dtlb_entry() (0)
+#define sh64_put_wired_dtlb_entry(entry) do { } while (0)
+#define sh64_setup_tlb_slot(conf, virt, asid, phys) do { } while (0)
+#define sh64_teardown_tlb_slot(addr) do { } while (0)
+#endif /* CONFIG_MMU */
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_SH_TLB_64_H */