1 files changed, 0 insertions, 132 deletions
diff --git a/arch/metag/kernel/cachepart.c b/arch/metag/kernel/cachepart.c
deleted file mode 100644
index 6e0f8a80cc96..000000000000
--- a/arch/metag/kernel/cachepart.c
+++ /dev/null
@@ -1,132 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Meta cache partition manipulation.
- *
- * Copyright 2010 Imagination Technologies Ltd.
- */
-
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <linux/errno.h>
-#include <asm/processor.h>
-#include <asm/cachepart.h>
-#include <asm/metag_isa.h>
-#include <asm/metag_mem.h>
-
-#define SYSC_DCPART(n)	(SYSC_DCPART0 + SYSC_xCPARTn_STRIDE * (n))
-#define SYSC_ICPART(n)	(SYSC_ICPART0 + SYSC_xCPARTn_STRIDE * (n))
-
-#define CACHE_ASSOCIATIVITY 4 /* 4 way set-associative */
-#define ICACHE 0
-#define DCACHE 1
-
-/* The CORE_CONFIG2 register is not available on Meta 1 */
-#ifdef CONFIG_METAG_META21
-unsigned int get_dcache_size(void)
-{
-	unsigned int config2 = metag_in32(METAC_CORE_CONFIG2);
-	unsigned int sz = 0x1000 << ((config2 & METAC_CORECFG2_DCSZ_BITS)
-				     >> METAC_CORECFG2_DCSZ_S);
-	if (config2 & METAC_CORECFG2_DCSMALL_BIT)
-		sz >>= 6;
-	return sz;
-}
-
-unsigned int get_icache_size(void)
-{
-	unsigned int config2 = metag_in32(METAC_CORE_CONFIG2);
-	unsigned int sz = 0x1000 << ((config2 & METAC_CORE_C2ICSZ_BITS)
-				     >> METAC_CORE_C2ICSZ_S);
-	if (config2 & METAC_CORECFG2_ICSMALL_BIT)
-		sz >>= 6;
-	return sz;
-}
-
-unsigned int get_global_dcache_size(void)
-{
-	unsigned int cpart = metag_in32(SYSC_DCPART(hard_processor_id()));
-	unsigned int temp = cpart & SYSC_xCPARTG_AND_BITS;
-	return (get_dcache_size() * ((temp >> SYSC_xCPARTG_AND_S) + 1)) >> 4;
-}
-
-unsigned int get_global_icache_size(void)
-{
-	unsigned int cpart = metag_in32(SYSC_ICPART(hard_processor_id()));
-	unsigned int temp = cpart & SYSC_xCPARTG_AND_BITS;
-	return (get_icache_size() * ((temp >> SYSC_xCPARTG_AND_S) + 1)) >> 4;
-}
-
-static int get_thread_cache_size(unsigned int cache, int thread_id)
-{
-	unsigned int cache_size;
-	unsigned int t_cache_part;
-	unsigned int isEnabled;
-	unsigned int offset = 0;
-	isEnabled = (cache == DCACHE ? metag_in32(MMCU_DCACHE_CTRL_ADDR) & 0x1 :
-		metag_in32(MMCU_ICACHE_CTRL_ADDR) & 0x1);
-	if (!isEnabled)
-		return 0;
-#if PAGE_OFFSET >= LINGLOBAL_BASE
-	/* Checking for global cache */
-	cache_size = (cache == DCACHE ? get_global_dcache_size() :
-		get_global_icache_size());
-	offset = 8;
-#else
-	cache_size = (cache == DCACHE ? get_dcache_size() :
-		get_icache_size());
-#endif
-	t_cache_part = (cache == DCACHE ?
-		(metag_in32(SYSC_DCPART(thread_id)) >> offset) & 0xF :
-		(metag_in32(SYSC_ICPART(thread_id)) >> offset) & 0xF);
-	switch (t_cache_part) {
-	case 0xF:
-		return cache_size;
-	case 0x7:
-		return cache_size / 2;
-	case 0x3:
-		return cache_size / 4;
-	case 0x1:
-		return cache_size / 8;
-	case 0:
-		return cache_size / 16;
-	}
-	return -1;
-}
-
-void check_for_cache_aliasing(int thread_id)
-{
-	int thread_cache_size;
-	unsigned int cache_type;
-	for (cache_type = ICACHE; cache_type <= DCACHE; cache_type++) {
-		thread_cache_size =
-				get_thread_cache_size(cache_type, thread_id);
-		if (thread_cache_size < 0)
-			pr_emerg("Can't read %s cache size\n",
-				 cache_type ? "DCACHE" : "ICACHE");
-		else if (thread_cache_size == 0)
-			/* Cache is off. No need to check for aliasing */
-			continue;
-		if (thread_cache_size / CACHE_ASSOCIATIVITY > PAGE_SIZE) {
-			pr_emerg("Potential cache aliasing detected in %s on Thread %d\n",
-				 cache_type ? "DCACHE" : "ICACHE", thread_id);
-			pr_warn("Total %s size: %u bytes\n",
-				cache_type ? "DCACHE" : "ICACHE",
-				cache_type ? get_dcache_size()
-				: get_icache_size());
-			pr_warn("Thread %s size: %d bytes\n",
-				cache_type ? "CACHE" : "ICACHE",
-				thread_cache_size);
-			pr_warn("Page Size: %lu bytes\n", PAGE_SIZE);
-			panic("Potential cache aliasing detected");
-		}
-	}
-}
-
-#else
-
-void check_for_cache_aliasing(int thread_id)
-{
-	return;
-}
-
-#endif