sh: Move over SH-5 TLB and cache support code.

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

1 files changed, 0 insertions, 166 deletions

diff --git a/arch/sh64/mm/tlb.c b/arch/sh64/mm/tlb.c
deleted file mode 100644
index d517e7d7034..00000000000
--- a/arch/sh64/mm/tlb.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * arch/sh64/mm/tlb.c
- *
- * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
- * Copyright (C) 2003  Richard Curnow <richard.curnow@superh.com>
- *
- * 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.
- *
- */
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <asm/page.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
-
-/**
- * sh64_tlb_init
- *
- * Perform initial setup for the DTLB and ITLB.
- */
-int __init sh64_tlb_init(void)
-{
-	/* Assign some sane DTLB defaults */
-	cpu_data->dtlb.entries	= 64;
-	cpu_data->dtlb.step	= 0x10;
-
-	cpu_data->dtlb.first	= DTLB_FIXED | cpu_data->dtlb.step;
-	cpu_data->dtlb.next	= cpu_data->dtlb.first;
-
-	cpu_data->dtlb.last	= DTLB_FIXED |
-				  ((cpu_data->dtlb.entries - 1) *
-				   cpu_data->dtlb.step);
-
-	/* And again for the ITLB */
-	cpu_data->itlb.entries	= 64;
-	cpu_data->itlb.step	= 0x10;
-
-	cpu_data->itlb.first	= ITLB_FIXED | cpu_data->itlb.step;
-	cpu_data->itlb.next	= cpu_data->itlb.first;
-	cpu_data->itlb.last	= ITLB_FIXED |
-				  ((cpu_data->itlb.entries - 1) *
-				   cpu_data->itlb.step);
-
-	return 0;
-}
-
-/**
- * sh64_next_free_dtlb_entry
- *
- * Find the next available DTLB entry
- */
-unsigned long long sh64_next_free_dtlb_entry(void)
-{
-	return cpu_data->dtlb.next;
-}
-
-/**
- * sh64_get_wired_dtlb_entry
- *
- * Allocate a wired (locked-in) entry in the DTLB
- */
-unsigned long long sh64_get_wired_dtlb_entry(void)
-{
-	unsigned long long entry = sh64_next_free_dtlb_entry();
-
-	cpu_data->dtlb.first += cpu_data->dtlb.step;
-	cpu_data->dtlb.next  += cpu_data->dtlb.step;
-
-	return entry;
-}
-
-/**
- * sh64_put_wired_dtlb_entry
- *
- * @entry:	Address of TLB slot.
- *
- * Free a wired (locked-in) entry in the DTLB.
- *
- * Works like a stack, last one to allocate must be first one to free.
- */
-int sh64_put_wired_dtlb_entry(unsigned long long entry)
-{
-	__flush_tlb_slot(entry);
-
-	/*
-	 * We don't do any particularly useful tracking of wired entries,
-	 * so this approach works like a stack .. last one to be allocated
-	 * has to be the first one to be freed.
-	 *
-	 * We could potentially load wired entries into a list and work on
-	 * rebalancing the list periodically (which also entails moving the
-	 * contents of a TLB entry) .. though I have a feeling that this is
-	 * more trouble than it's worth.
-	 */
-
-	/*
-	 * Entry must be valid .. we don't want any ITLB addresses!
-	 */
-	if (entry <= DTLB_FIXED)
-		return -EINVAL;
-
-	/*
-	 * Next, check if we're within range to be freed. (ie, must be the
-	 * entry beneath the first 'free' entry!
-	 */
-	if (entry < (cpu_data->dtlb.first - cpu_data->dtlb.step))
-		return -EINVAL;
-
-	/* If we are, then bring this entry back into the list */
-	cpu_data->dtlb.first	-= cpu_data->dtlb.step;
-	cpu_data->dtlb.next	= entry;
-
-	return 0;
-}
-
-/**
- * sh64_setup_tlb_slot
- *
- * @config_addr:	Address of TLB slot.
- * @eaddr:		Virtual address.
- * @asid:		Address Space Identifier.
- * @paddr:		Physical address.
- *
- * Load up a virtual<->physical translation for @eaddr<->@paddr in the
- * pre-allocated TLB slot @config_addr (see sh64_get_wired_dtlb_entry).
- */
-inline void sh64_setup_tlb_slot(unsigned long long config_addr,
-				unsigned long eaddr,
-				unsigned long asid,
-				unsigned long paddr)
-{
-	unsigned long long pteh, ptel;
-
-	/* Sign extension */
-#if (NEFF == 32)
-	pteh = (unsigned long long)(signed long long)(signed long) eaddr;
-#else
-#error "Can't sign extend more than 32 bits yet"
-#endif
-	pteh &= PAGE_MASK;
-	pteh |= (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
-#if (NEFF == 32)
-	ptel = (unsigned long long)(signed long long)(signed long) paddr;
-#else
-#error "Can't sign extend more than 32 bits yet"
-#endif
-	ptel &= PAGE_MASK;
-	ptel |= (_PAGE_CACHABLE | _PAGE_READ | _PAGE_WRITE);
-
-	asm volatile("putcfg %0, 1, %1\n\t"
-			"putcfg %0, 0, %2\n"
-			: : "r" (config_addr), "r" (ptel), "r" (pteh));
-}
-
-/**
- * sh64_teardown_tlb_slot
- *
- * @config_addr:	Address of TLB slot.
- *
- * Teardown any existing mapping in the TLB slot @config_addr.
- */
-inline void sh64_teardown_tlb_slot(unsigned long long config_addr)
-	__attribute__ ((alias("__flush_tlb_slot")));
-