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Diffstat (limited to 'arch/mn10300/mm/cache-smp.c')
-rw-r--r--arch/mn10300/mm/cache-smp.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/arch/mn10300/mm/cache-smp.c b/arch/mn10300/mm/cache-smp.c
deleted file mode 100644
index e80996064d3d..000000000000
--- a/arch/mn10300/mm/cache-smp.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* SMP global caching code
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/threads.h>
-#include <linux/interrupt.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cacheflush.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-#include <asm/smp.h>
-#include "cache-smp.h"
-
-DEFINE_SPINLOCK(smp_cache_lock);
-static unsigned long smp_cache_mask;
-static unsigned long smp_cache_start;
-static unsigned long smp_cache_end;
-static cpumask_t smp_cache_ipi_map; /* Bitmask of cache IPI done CPUs */
-
-/**
- * smp_cache_interrupt - Handle IPI request to flush caches.
- *
- * Handle a request delivered by IPI to flush the current CPU's
- * caches. The parameters are stored in smp_cache_*.
- */
-void smp_cache_interrupt(void)
-{
- unsigned long opr_mask = smp_cache_mask;
-
- switch ((enum smp_dcache_ops)(opr_mask & SMP_DCACHE_OP_MASK)) {
- case SMP_DCACHE_NOP:
- break;
- case SMP_DCACHE_INV:
- mn10300_local_dcache_inv();
- break;
- case SMP_DCACHE_INV_RANGE:
- mn10300_local_dcache_inv_range(smp_cache_start, smp_cache_end);
- break;
- case SMP_DCACHE_FLUSH:
- mn10300_local_dcache_flush();
- break;
- case SMP_DCACHE_FLUSH_RANGE:
- mn10300_local_dcache_flush_range(smp_cache_start,
- smp_cache_end);
- break;
- case SMP_DCACHE_FLUSH_INV:
- mn10300_local_dcache_flush_inv();
- break;
- case SMP_DCACHE_FLUSH_INV_RANGE:
- mn10300_local_dcache_flush_inv_range(smp_cache_start,
- smp_cache_end);
- break;
- }
-
- switch ((enum smp_icache_ops)(opr_mask & SMP_ICACHE_OP_MASK)) {
- case SMP_ICACHE_NOP:
- break;
- case SMP_ICACHE_INV:
- mn10300_local_icache_inv();
- break;
- case SMP_ICACHE_INV_RANGE:
- mn10300_local_icache_inv_range(smp_cache_start, smp_cache_end);
- break;
- }
-
- cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map);
-}
-
-/**
- * smp_cache_call - Issue an IPI to request the other CPUs flush caches
- * @opr_mask: Cache operation flags
- * @start: Start address of request
- * @end: End address of request
- *
- * Send cache flush IPI to other CPUs. This invokes smp_cache_interrupt()
- * above on those other CPUs and then waits for them to finish.
- *
- * The caller must hold smp_cache_lock.
- */
-void smp_cache_call(unsigned long opr_mask,
- unsigned long start, unsigned long end)
-{
- smp_cache_mask = opr_mask;
- smp_cache_start = start;
- smp_cache_end = end;
- cpumask_copy(&smp_cache_ipi_map, cpu_online_mask);
- cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map);
-
- send_IPI_allbutself(FLUSH_CACHE_IPI);
-
- while (!cpumask_empty(&smp_cache_ipi_map))
- /* nothing. lockup detection does not belong here */
- mb();
-}