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author | Imre Kaloz <kaloz@openwrt.org> | 2010-11-22 13:31:46 +0000 |
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committer | Imre Kaloz <kaloz@openwrt.org> | 2010-11-22 13:31:46 +0000 |
commit | d6ea3e24d49f94051305b5191edd10d213f92bf3 (patch) | |
tree | d92ba23cf07ca211cd6100bb144831295b2bea54 /target/linux/coldfire/patches/062-mcfv4e_cache_split.patch | |
parent | d066a4c712aae3cd1aaa5108f7cd2cae81c6343b (diff) | |
download | master-31e0f0ae-d6ea3e24d49f94051305b5191edd10d213f92bf3.tar.gz master-31e0f0ae-d6ea3e24d49f94051305b5191edd10d213f92bf3.tar.bz2 master-31e0f0ae-d6ea3e24d49f94051305b5191edd10d213f92bf3.zip |
remove 2.6.25 support
SVN-Revision: 24088
Diffstat (limited to 'target/linux/coldfire/patches/062-mcfv4e_cache_split.patch')
-rw-r--r-- | target/linux/coldfire/patches/062-mcfv4e_cache_split.patch | 979 |
1 files changed, 0 insertions, 979 deletions
diff --git a/target/linux/coldfire/patches/062-mcfv4e_cache_split.patch b/target/linux/coldfire/patches/062-mcfv4e_cache_split.patch deleted file mode 100644 index a98c334b6d..0000000000 --- a/target/linux/coldfire/patches/062-mcfv4e_cache_split.patch +++ /dev/null @@ -1,979 +0,0 @@ -From 940b4fea5ebfde3abe03c6469a57c01ee961497a Mon Sep 17 00:00:00 2001 -From: Kurt Mahan <kmahan@freescale.com> -Date: Wed, 18 Jun 2008 15:20:21 -0600 -Subject: [PATCH] Split 547x/548x and 5445x cache routines into separate files. - -LTIBName: mcfv4e-cache-split -Signed-off-by: Kurt Mahan <kmahan@freescale.com> ---- - include/asm-m68k/cf_5445x_cacheflush.h | 447 ++++++++++++++++++++++++++++++++ - include/asm-m68k/cf_548x_cacheflush.h | 259 ++++++++++++++++++ - include/asm-m68k/cf_cacheflush.h | 244 +----------------- - 3 files changed, 711 insertions(+), 239 deletions(-) - create mode 100644 include/asm-m68k/cf_5445x_cacheflush.h - create mode 100644 include/asm-m68k/cf_548x_cacheflush.h - ---- /dev/null -+++ b/include/asm-m68k/cf_5445x_cacheflush.h -@@ -0,0 +1,447 @@ -+/* -+ * include/asm-m68k/cf_5445x_cacheflush.h - Coldfire 5445x Cache -+ * -+ * Based on include/asm-m68k/cacheflush.h -+ * -+ * Coldfire pieces by: -+ * Kurt Mahan kmahan@freescale.com -+ * -+ * Copyright Freescale Semiconductor, Inc. 2007, 2008 -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ */ -+#ifndef M68K_CF_5445x_CACHEFLUSH_H -+#define M68K_CF_5445x_CACHEFLUSH_H -+ -+#include <asm/cfcache.h> -+ -+/* -+ * Coldfire Cache Model -+ * -+ * The Coldfire processors use a Harvard architecture cache configured -+ * as four-way set associative. The cache does not implement bus snooping -+ * so cache coherency with other masters must be maintained in software. -+ * -+ * The cache is managed via the CPUSHL instruction in conjunction with -+ * bits set in the CACR (cache control register). Currently the code -+ * uses the CPUSHL enhancement which adds the ability to -+ * invalidate/clear/push a cacheline by physical address. This feature -+ * is designated in the Hardware Configuration Register [D1-CPES]. -+ * -+ * CACR Bits: -+ * DPI[28] cpushl invalidate disable for d-cache -+ * IDPI[12] cpushl invalidate disable for i-cache -+ * SPA[14] cpushl search by physical address -+ * IVO[20] cpushl invalidate only -+ * -+ * Random Terminology: -+ * * invalidate = reset the cache line's valid bit -+ * * push = generate a line-sized store of the data if its contents are marked -+ * as modifed (the modified flag is cleared after the store) -+ * * clear = push + invalidate -+ */ -+ -+/** -+ * flush_icache - Flush all of the instruction cache -+ */ -+static inline void flush_icache(void) -+{ -+ asm volatile("nop\n" -+ "moveq%.l #0,%%d0\n" -+ "moveq%.l #0,%%d1\n" -+ "move%.l %%d0,%%a0\n" -+ "1:\n" -+ "cpushl %%ic,(%%a0)\n" -+ "add%.l #0x0010,%%a0\n" -+ "addq%.l #1,%%d1\n" -+ "cmpi%.l %0,%%d1\n" -+ "bne 1b\n" -+ "moveq%.l #0,%%d1\n" -+ "addq%.l #1,%%d0\n" -+ "move%.l %%d0,%%a0\n" -+ "cmpi%.l #4,%%d0\n" -+ "bne 1b\n" -+ : : "i" (CACHE_SETS) -+ : "a0", "d0", "d1"); -+} -+ -+/** -+ * flush_dcache - Flush all of the data cache -+ */ -+static inline void flush_dcache(void) -+{ -+ asm volatile("nop\n" -+ "moveq%.l #0,%%d0\n" -+ "moveq%.l #0,%%d1\n" -+ "move%.l %%d0,%%a0\n" -+ "1:\n" -+ "cpushl %%dc,(%%a0)\n" -+ "add%.l #0x0010,%%a0\n" -+ "addq%.l #1,%%d1\n" -+ "cmpi%.l %0,%%d1\n" -+ "bne 1b\n" -+ "moveq%.l #0,%%d1\n" -+ "addq%.l #1,%%d0\n" -+ "move%.l %%d0,%%a0\n" -+ "cmpi%.l #4,%%d0\n" -+ "bne 1b\n" -+ : : "i" (CACHE_SETS) -+ : "a0", "d0", "d1"); -+} -+ -+/** -+ * flush_bcache - Flush all of both caches -+ */ -+static inline void flush_bcache(void) -+{ -+ asm volatile("nop\n" -+ "moveq%.l #0,%%d0\n" -+ "moveq%.l #0,%%d1\n" -+ "move%.l %%d0,%%a0\n" -+ "1:\n" -+ "cpushl %%bc,(%%a0)\n" -+ "add%.l #0x0010,%%a0\n" -+ "addq%.l #1,%%d1\n" -+ "cmpi%.l %0,%%d1\n" -+ "bne 1b\n" -+ "moveq%.l #0,%%d1\n" -+ "addq%.l #1,%%d0\n" -+ "move%.l %%d0,%%a0\n" -+ "cmpi%.l #4,%%d0\n" -+ "bne 1b\n" -+ : : "i" (CACHE_SETS) -+ : "a0", "d0", "d1"); -+} -+ -+/** -+ * cf_cache_clear - invalidate cache -+ * @paddr: starting physical address -+ * @len: number of bytes -+ * -+ * Invalidate cache lines starting at paddr for len bytes. -+ * Those lines are not pushed. -+ */ -+static inline void cf_cache_clear(unsigned long paddr, int len) -+{ -+ /* number of lines */ -+ len = (len + (CACHE_LINE_SIZE-1)) / CACHE_LINE_SIZE; -+ if (len == 0) -+ return; -+ -+ /* align on set boundary */ -+ paddr &= 0xfffffff0; -+ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%a0\n" -+ "move%.l %1,%%d0\n" -+ "1:\n" -+ "cpushl %%bc,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "subq%.l #1,%%d0\n" -+ "bne%.b 1b\n" -+ "movec %2,%%cacr\n" -+ : : "a" (paddr), "r" (len), -+ "r" (shadow_cacr), -+ "i" (CF_CACR_SPA+CF_CACR_IVO) -+ : "a0", "d0"); -+} -+ -+/** -+ * cf_cache_push - Push dirty cache out with no invalidate -+ * @paddr: starting physical address -+ * @len: number of bytes -+ * -+ * Push the any dirty lines starting at paddr for len bytes. -+ * Those lines are not invalidated. -+ */ -+static inline void cf_cache_push(unsigned long paddr, int len) -+{ -+ /* number of lines */ -+ len = (len + (CACHE_LINE_SIZE-1)) / CACHE_LINE_SIZE; -+ if (len == 0) -+ return; -+ -+ /* align on set boundary */ -+ paddr &= 0xfffffff0; -+ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%a0\n" -+ "move%.l %1,%%d0\n" -+ "1:\n" -+ "cpushl %%bc,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "subq%.l #1,%%d0\n" -+ "bne.b 1b\n" -+ "movec %2,%%cacr\n" -+ : : "a" (paddr), "r" (len), -+ "r" (shadow_cacr), -+ "i" (CF_CACR_SPA+CF_CACR_DPI+CF_CACR_IDPI) -+ : "a0", "d0"); -+} -+ -+/** -+ * cf_cache_flush - Push dirty cache out and invalidate -+ * @paddr: starting physical address -+ * @len: number of bytes -+ * -+ * Push the any dirty lines starting at paddr for len bytes and -+ * invalidate those lines. -+ */ -+static inline void cf_cache_flush(unsigned long paddr, int len) -+{ -+ /* number of lines */ -+ len = (len + (CACHE_LINE_SIZE-1)) / CACHE_LINE_SIZE; -+ if (len == 0) -+ return; -+ -+ /* align on set boundary */ -+ paddr &= 0xfffffff0; -+ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%a0\n" -+ "move%.l %1,%%d0\n" -+ "1:\n" -+ "cpushl %%bc,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "subq%.l #1,%%d0\n" -+ "bne.b 1b\n" -+ "movec %2,%%cacr\n" -+ : : "a" (paddr), "r" (len), -+ "r" (shadow_cacr), -+ "i" (CF_CACR_SPA) -+ : "a0", "d0"); -+} -+ -+/** -+ * cf_cache_flush_range - Push dirty data/inst cache in range out and invalidate -+ * @vstart - starting virtual address -+ * @vend: ending virtual address -+ * -+ * Push the any dirty data/instr lines starting at paddr for len bytes and -+ * invalidate those lines. -+ */ -+static inline void cf_cache_flush_range(unsigned long vstart, unsigned long vend) -+{ -+ int len; -+ -+ /* align on set boundary */ -+ vstart &= 0xfffffff0; -+ vend = PAGE_ALIGN((vend + (CACHE_LINE_SIZE-1))) & 0xfffffff0; -+ len = vend - vstart; -+ if (len == 0) -+ return; -+ vstart = __pa(vstart); -+ vend = vstart + len; -+ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%a0\n" -+ "move%.l %1,%%a1\n" -+ "1:\n" -+ "cpushl %%bc,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "cmpa%.l %%a0,%%a1\n" -+ "bne.b 1b\n" -+ "movec %2,%%cacr\n" -+ : /* no return */ -+ : "a" (vstart), "a" (vend), -+ "r" (shadow_cacr), -+ "i" (CF_CACR_SPA) -+ : "a0", "a1", "d0"); -+} -+ -+/** -+ * cf_dcache_flush_range - Push dirty data cache in range out and invalidate -+ * @vstart - starting virtual address -+ * @vend: ending virtual address -+ * -+ * Push the any dirty data lines starting at paddr for len bytes and -+ * invalidate those lines. -+ */ -+static inline void cf_dcache_flush_range(unsigned long vstart, unsigned long vend) -+{ -+ /* align on set boundary */ -+ vstart &= 0xfffffff0; -+ vend = (vend + (CACHE_LINE_SIZE-1)) & 0xfffffff0; -+ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%a0\n" -+ "move%.l %1,%%a1\n" -+ "1:\n" -+ "cpushl %%dc,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "cmpa%.l %%a0,%%a1\n" -+ "bne.b 1b\n" -+ "movec %2,%%cacr\n" -+ : /* no return */ -+ : "a" (__pa(vstart)), "a" (__pa(vend)), -+ "r" (shadow_cacr), -+ "i" (CF_CACR_SPA) -+ : "a0", "a1", "d0"); -+} -+ -+/** -+ * cf_icache_flush_range - Push dirty inst cache in range out and invalidate -+ * @vstart - starting virtual address -+ * @vend: ending virtual address -+ * -+ * Push the any dirty instr lines starting at paddr for len bytes and -+ * invalidate those lines. This should just be an invalidate since you -+ * shouldn't be able to have dirty instruction cache. -+ */ -+static inline void cf_icache_flush_range(unsigned long vstart, unsigned long vend) -+{ -+ /* align on set boundary */ -+ vstart &= 0xfffffff0; -+ vend = (vend + (CACHE_LINE_SIZE-1)) & 0xfffffff0; -+ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%a0\n" -+ "move%.l %1,%%a1\n" -+ "1:\n" -+ "cpushl %%ic,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "cmpa%.l %%a0,%%a1\n" -+ "bne.b 1b\n" -+ "movec %2,%%cacr\n" -+ : /* no return */ -+ : "a" (__pa(vstart)), "a" (__pa(vend)), -+ "r" (shadow_cacr), -+ "i" (CF_CACR_SPA) -+ : "a0", "a1", "d0"); -+} -+ -+/** -+ * flush_cache_mm - Flush an mm_struct -+ * @mm: mm_struct to flush -+ */ -+static inline void flush_cache_mm(struct mm_struct *mm) -+{ -+ if (mm == current->mm) -+ flush_bcache(); -+} -+ -+#define flush_cache_dup_mm(mm) flush_cache_mm(mm) -+ -+/** -+ * flush_cache_range - Flush a cache range -+ * @vma: vma struct -+ * @start: Starting address -+ * @end: Ending address -+ * -+ * flush_cache_range must be a macro to avoid a dependency on -+ * linux/mm.h which includes this file. -+ */ -+static inline void flush_cache_range(struct vm_area_struct *vma, -+ unsigned long start, unsigned long end) -+{ -+ if (vma->vm_mm == current->mm) -+ cf_cache_flush_range(start, end); -+} -+ -+/** -+ * flush_cache_page - Flush a page of the cache -+ * @vma: vma struct -+ * @vmaddr: -+ * @pfn: page numer -+ * -+ * flush_cache_page must be a macro to avoid a dependency on -+ * linux/mm.h which includes this file. -+ */ -+static inline void flush_cache_page(struct vm_area_struct *vma, -+ unsigned long vmaddr, unsigned long pfn) -+{ -+ if (vma->vm_mm == current->mm) -+ cf_cache_flush_range(vmaddr, vmaddr+PAGE_SIZE); -+} -+ -+/** -+ * __flush_page_to_ram - Push a page out of the cache -+ * @vaddr: Virtual address at start of page -+ * -+ * Push the page at kernel virtual address *vaddr* and clear -+ * the icache. -+ */ -+static inline void __flush_page_to_ram(void *vaddr) -+{ -+ asm volatile("nop\n" -+ "move%.l %2,%%d0\n" -+ "or%.l %3,%%d0\n" -+ "movec %%d0,%%cacr\n" -+ "move%.l %0,%%d0\n" -+ "and%.l #0xfffffff0,%%d0\n" -+ "move%.l %%d0,%%a0\n" -+ "move%.l %1,%%d0\n" -+ "1:\n" -+ "cpushl %%bc,(%%a0)\n" -+ "lea 0x10(%%a0),%%a0\n" -+ "subq%.l #1,%%d0\n" -+ "bne.b 1b\n" -+ "movec %2,%%cacr\n" -+ : : "a" (__pa(vaddr)), "i" (PAGE_SIZE / CACHE_LINE_SIZE), -+ "r" (shadow_cacr), "i" (CF_CACR_SPA) -+ : "a0", "d0"); -+} -+ -+/* -+ * Various defines for the kernel. -+ */ -+ -+extern void cache_clear(unsigned long paddr, int len); -+extern void cache_push(unsigned long paddr, int len); -+extern void flush_icache_range(unsigned long address, unsigned long endaddr); -+ -+#define flush_cache_all() flush_bcache() -+#define flush_cache_vmap(start, end) flush_bcache() -+#define flush_cache_vunmap(start, end) flush_bcache() -+ -+#define flush_dcache_range(vstart, vend) cf_dcache_flush_range(vstart, vend) -+#define flush_dcache_page(page) __flush_page_to_ram(page_address(page)) -+#define flush_dcache_mmap_lock(mapping) do { } while (0) -+#define flush_dcache_mmap_unlock(mapping) do { } while (0) -+ -+#define flush_icache_page(vma, page) __flush_page_to_ram(page_address(page)) -+ -+/** -+ * copy_to_user_page - Copy memory to user page -+ */ -+static inline void copy_to_user_page(struct vm_area_struct *vma, -+ struct page *page, unsigned long vaddr, -+ void *dst, void *src, int len) -+{ -+ memcpy(dst, src, len); -+ cf_cache_flush(page_to_phys(page), PAGE_SIZE); -+} -+ -+/** -+ * copy_from_user_page - Copy memory from user page -+ */ -+static inline void copy_from_user_page(struct vm_area_struct *vma, -+ struct page *page, unsigned long vaddr, -+ void *dst, void *src, int len) -+{ -+ cf_cache_flush(page_to_phys(page), PAGE_SIZE); -+ memcpy(dst, src, len); -+} -+ -+#endif /* M68K_CF_5445x_CACHEFLUSH_H */ ---- /dev/null -+++ b/include/asm-m68k/cf_548x_cacheflush.h -@@ -0,0 +1,259 @@ -+/* -+ * include/asm-m68k/cf_548x_cacheflush.h - Coldfire 547x/548x Cache -+ * -+ * Based on include/asm-m68k/cacheflush.h -+ * -+ * Coldfire pieces by: -+ * Kurt Mahan kmahan@freescale.com -+ * -+ * Copyright Freescale Semiconductor, Inc. 2007, 2008 -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ */ -+#ifndef M68K_CF_548x_CACHEFLUSH_H -+#define M68K_CF_548x_CACHEFLUSH_H -+ -+#include <asm/cfcache.h> -+/* -+ * Cache handling functions -+ */ -+ -+#define flush_icache() \ -+({ \ -+ unsigned long set; \ -+ unsigned long start_set; \ -+ unsigned long end_set; \ -+ \ -+ start_set = 0; \ -+ end_set = (unsigned long)LAST_DCACHE_ADDR; \ -+ \ -+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { \ -+ asm volatile("cpushl %%ic,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%ic,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%ic,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); \ -+ } \ -+}) -+ -+#define flush_dcache() \ -+({ \ -+ unsigned long set; \ -+ unsigned long start_set; \ -+ unsigned long end_set; \ -+ \ -+ start_set = 0; \ -+ end_set = (unsigned long)LAST_DCACHE_ADDR; \ -+ \ -+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { \ -+ asm volatile("cpushl %%dc,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%dc,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%dc,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%dc,(%0)" : "=a" (set) : "a" (set)); \ -+ } \ -+}) -+ -+#define flush_bcache() \ -+({ \ -+ unsigned long set; \ -+ unsigned long start_set; \ -+ unsigned long end_set; \ -+ \ -+ start_set = 0; \ -+ end_set = (unsigned long)LAST_DCACHE_ADDR; \ -+ \ -+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { \ -+ asm volatile("cpushl %%bc,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%bc,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%bc,(%0)\n" \ -+ "\taddq%.l #1,%0\n" \ -+ "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); \ -+ } \ -+}) -+ -+/* -+ * invalidate the cache for the specified memory range. -+ * It starts at the physical address specified for -+ * the given number of bytes. -+ */ -+extern void cache_clear(unsigned long paddr, int len); -+/* -+ * push any dirty cache in the specified memory range. -+ * It starts at the physical address specified for -+ * the given number of bytes. -+ */ -+extern void cache_push(unsigned long paddr, int len); -+ -+/* -+ * push and invalidate pages in the specified user virtual -+ * memory range. -+ */ -+extern void cache_push_v(unsigned long vaddr, int len); -+ -+/* This is needed whenever the virtual mapping of the current -+ process changes. */ -+ -+/** -+ * flush_cache_mm - Flush an mm_struct -+ * @mm: mm_struct to flush -+ */ -+static inline void flush_cache_mm(struct mm_struct *mm) -+{ -+ if (mm == current->mm) -+ flush_bcache(); -+} -+ -+#define flush_cache_dup_mm(mm) flush_cache_mm(mm) -+ -+#define flush_cache_all() flush_bcache() -+ -+/** -+ * flush_cache_range - Flush a cache range -+ * @vma: vma struct -+ * @start: Starting address -+ * @end: Ending address -+ * -+ * flush_cache_range must be a macro to avoid a dependency on -+ * linux/mm.h which includes this file. -+ */ -+static inline void flush_cache_range(struct vm_area_struct *vma, -+ unsigned long start, unsigned long end) -+{ -+ if (vma->vm_mm == current->mm) -+ flush_bcache(); -+// cf_cache_flush_range(start, end); -+} -+ -+/** -+ * flush_cache_page - Flush a page of the cache -+ * @vma: vma struct -+ * @vmaddr: -+ * @pfn: page numer -+ * -+ * flush_cache_page must be a macro to avoid a dependency on -+ * linux/mm.h which includes this file. -+ */ -+static inline void flush_cache_page(struct vm_area_struct *vma, -+ unsigned long vmaddr, unsigned long pfn) -+{ -+ if (vma->vm_mm == current->mm) -+ flush_bcache(); -+// cf_cache_flush_range(vmaddr, vmaddr+PAGE_SIZE); -+} -+ -+/* Push the page at kernel virtual address and clear the icache */ -+/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */ -+#define flush_page_to_ram(page) __flush_page_to_ram((void *) page_address(page)) -+extern inline void __flush_page_to_ram(void *address) -+{ -+ unsigned long set; -+ unsigned long start_set; -+ unsigned long end_set; -+ unsigned long addr = (unsigned long) address; -+ -+ addr &= ~(PAGE_SIZE - 1); /* round down to page start address */ -+ -+ start_set = addr & _ICACHE_SET_MASK; -+ end_set = (addr + PAGE_SIZE-1) & _ICACHE_SET_MASK; -+ -+ if (start_set > end_set) { -+ /* from the begining to the lowest address */ -+ for (set = 0; set <= end_set; set += (0x10 - 3)) { -+ asm volatile("cpushl %%bc,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%bc,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%bc,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); -+ } -+ /* next loop will finish the cache ie pass the hole */ -+ end_set = LAST_ICACHE_ADDR; -+ } -+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { -+ asm volatile("cpushl %%bc,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%bc,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%bc,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); -+ } -+} -+ -+/* Use __flush_page_to_ram() for flush_dcache_page all values are same - MW */ -+#define flush_dcache_page(page) \ -+ __flush_page_to_ram((void *) page_address(page)) -+#define flush_icache_page(vma,pg) \ -+ __flush_page_to_ram((void *) page_address(pg)) -+#define flush_icache_user_range(adr,len) do { } while (0) -+/* NL */ -+#define flush_icache_user_page(vma,page,addr,len) do { } while (0) -+ -+/* Push n pages at kernel virtual address and clear the icache */ -+/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */ -+extern inline void flush_icache_range (unsigned long address, -+ unsigned long endaddr) -+{ -+ unsigned long set; -+ unsigned long start_set; -+ unsigned long end_set; -+ -+ start_set = address & _ICACHE_SET_MASK; -+ end_set = endaddr & _ICACHE_SET_MASK; -+ -+ if (start_set > end_set) { -+ /* from the begining to the lowest address */ -+ for (set = 0; set <= end_set; set += (0x10 - 3)) { -+ asm volatile("cpushl %%ic,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%ic,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%ic,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); -+ } -+ /* next loop will finish the cache ie pass the hole */ -+ end_set = LAST_ICACHE_ADDR; -+ } -+ for (set = start_set; set <= end_set; set += (0x10 - 3)) { -+ asm volatile("cpushl %%ic,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%ic,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%ic,(%0)\n" -+ "\taddq%.l #1,%0\n" -+ "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); -+ } -+} -+ -+static inline void copy_to_user_page(struct vm_area_struct *vma, -+ struct page *page, unsigned long vaddr, -+ void *dst, void *src, int len) -+{ -+ memcpy(dst, src, len); -+ flush_icache_user_page(vma, page, vaddr, len); -+} -+static inline void copy_from_user_page(struct vm_area_struct *vma, -+ struct page *page, unsigned long vaddr, -+ void *dst, void *src, int len) -+{ -+ memcpy(dst, src, len); -+} -+ -+#define flush_cache_vmap(start, end) flush_cache_all() -+#define flush_cache_vunmap(start, end) flush_cache_all() -+#define flush_dcache_mmap_lock(mapping) do { } while (0) -+#define flush_dcache_mmap_unlock(mapping) do { } while (0) -+ -+#endif /* M68K_CF_548x_CACHEFLUSH_H */ ---- a/include/asm-m68k/cf_cacheflush.h -+++ b/include/asm-m68k/cf_cacheflush.h -@@ -1,244 +1,10 @@ - #ifndef M68K_CF_CACHEFLUSH_H - #define M68K_CF_CACHEFLUSH_H - --#include <asm/cfcache.h> --/* -- * Cache handling functions -- */ -- --#define flush_icache() \ --({ \ -- unsigned long set; \ -- unsigned long start_set; \ -- unsigned long end_set; \ -- \ -- start_set = 0; \ -- end_set = (unsigned long)LAST_DCACHE_ADDR; \ -- \ -- for (set = start_set; set <= end_set; set += (0x10 - 3)) { \ -- asm volatile("cpushl %%ic,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%ic,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%ic,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); \ -- } \ --}) -- --#define flush_dcache() \ --({ \ -- unsigned long set; \ -- unsigned long start_set; \ -- unsigned long end_set; \ -- \ -- start_set = 0; \ -- end_set = (unsigned long)LAST_DCACHE_ADDR; \ -- \ -- for (set = start_set; set <= end_set; set += (0x10 - 3)) { \ -- asm volatile("cpushl %%dc,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%dc,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%dc,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%dc,(%0)" : "=a" (set) : "a" (set)); \ -- } \ --}) -- --#define flush_bcache() \ --({ \ -- unsigned long set; \ -- unsigned long start_set; \ -- unsigned long end_set; \ -- \ -- start_set = 0; \ -- end_set = (unsigned long)LAST_DCACHE_ADDR; \ -- \ -- for (set = start_set; set <= end_set; set += (0x10 - 3)) { \ -- asm volatile("cpushl %%bc,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%bc,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%bc,(%0)\n" \ -- "\taddq%.l #1,%0\n" \ -- "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); \ -- } \ --}) -- --/* -- * invalidate the cache for the specified memory range. -- * It starts at the physical address specified for -- * the given number of bytes. -- */ --extern void cache_clear(unsigned long paddr, int len); --/* -- * push any dirty cache in the specified memory range. -- * It starts at the physical address specified for -- * the given number of bytes. -- */ --extern void cache_push(unsigned long paddr, int len); -- --/* -- * push and invalidate pages in the specified user virtual -- * memory range. -- */ --extern void cache_push_v(unsigned long vaddr, int len); -- --/* This is needed whenever the virtual mapping of the current -- process changes. */ -- --/** -- * flush_cache_mm - Flush an mm_struct -- * @mm: mm_struct to flush -- */ --static inline void flush_cache_mm(struct mm_struct *mm) --{ -- if (mm == current->mm) -- flush_bcache(); --} -- --#define flush_cache_dup_mm(mm) flush_cache_mm(mm) -- --#define flush_cache_all() flush_bcache() -- --/** -- * flush_cache_range - Flush a cache range -- * @vma: vma struct -- * @start: Starting address -- * @end: Ending address -- * -- * flush_cache_range must be a macro to avoid a dependency on -- * linux/mm.h which includes this file. -- */ --static inline void flush_cache_range(struct vm_area_struct *vma, -- unsigned long start, unsigned long end) --{ -- if (vma->vm_mm == current->mm) -- flush_bcache(); --// cf_cache_flush_range(start, end); --} -- --/** -- * flush_cache_page - Flush a page of the cache -- * @vma: vma struct -- * @vmaddr: -- * @pfn: page numer -- * -- * flush_cache_page must be a macro to avoid a dependency on -- * linux/mm.h which includes this file. -- */ --static inline void flush_cache_page(struct vm_area_struct *vma, -- unsigned long vmaddr, unsigned long pfn) --{ -- if (vma->vm_mm == current->mm) -- flush_bcache(); --// cf_cache_flush_range(vmaddr, vmaddr+PAGE_SIZE); --} -- --/* Push the page at kernel virtual address and clear the icache */ --/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */ --#define flush_page_to_ram(page) __flush_page_to_ram((void *) page_address(page)) --extern inline void __flush_page_to_ram(void *address) --{ -- unsigned long set; -- unsigned long start_set; -- unsigned long end_set; -- unsigned long addr = (unsigned long) address; -- -- addr &= ~(PAGE_SIZE - 1); /* round down to page start address */ -- -- start_set = addr & _ICACHE_SET_MASK; -- end_set = (addr + PAGE_SIZE-1) & _ICACHE_SET_MASK; -- -- if (start_set > end_set) { -- /* from the begining to the lowest address */ -- for (set = 0; set <= end_set; set += (0x10 - 3)) { -- asm volatile("cpushl %%bc,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%bc,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%bc,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); -- } -- /* next loop will finish the cache ie pass the hole */ -- end_set = LAST_ICACHE_ADDR; -- } -- for (set = start_set; set <= end_set; set += (0x10 - 3)) { -- asm volatile("cpushl %%bc,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%bc,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%bc,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%bc,(%0)" : "=a" (set) : "a" (set)); -- } --} -- --/* Use __flush_page_to_ram() for flush_dcache_page all values are same - MW */ --#define flush_dcache_page(page) \ -- __flush_page_to_ram((void *) page_address(page)) --#define flush_icache_page(vma,pg) \ -- __flush_page_to_ram((void *) page_address(pg)) --#define flush_icache_user_range(adr,len) do { } while (0) --/* NL */ --#define flush_icache_user_page(vma,page,addr,len) do { } while (0) -- --/* Push n pages at kernel virtual address and clear the icache */ --/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */ --extern inline void flush_icache_range (unsigned long address, -- unsigned long endaddr) --{ -- unsigned long set; -- unsigned long start_set; -- unsigned long end_set; -- -- start_set = address & _ICACHE_SET_MASK; -- end_set = endaddr & _ICACHE_SET_MASK; -- -- if (start_set > end_set) { -- /* from the begining to the lowest address */ -- for (set = 0; set <= end_set; set += (0x10 - 3)) { -- asm volatile("cpushl %%ic,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%ic,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%ic,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); -- } -- /* next loop will finish the cache ie pass the hole */ -- end_set = LAST_ICACHE_ADDR; -- } -- for (set = start_set; set <= end_set; set += (0x10 - 3)) { -- asm volatile("cpushl %%ic,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%ic,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%ic,(%0)\n" -- "\taddq%.l #1,%0\n" -- "\tcpushl %%ic,(%0)" : "=a" (set) : "a" (set)); -- } --} -- --static inline void copy_to_user_page(struct vm_area_struct *vma, -- struct page *page, unsigned long vaddr, -- void *dst, void *src, int len) --{ -- memcpy(dst, src, len); -- flush_icache_user_page(vma, page, vaddr, len); --} --static inline void copy_from_user_page(struct vm_area_struct *vma, -- struct page *page, unsigned long vaddr, -- void *dst, void *src, int len) --{ -- memcpy(dst, src, len); --} -- --#define flush_cache_vmap(start, end) flush_cache_all() --#define flush_cache_vunmap(start, end) flush_cache_all() --#define flush_dcache_mmap_lock(mapping) do { } while (0) --#define flush_dcache_mmap_unlock(mapping) do { } while (0) -+#ifdef CONFIG_M5445X -+#include "cf_5445x_cacheflush.h" -+#else -+#include "cf_548x_cacheflush.h" -+#endif - - #endif /* M68K_CF_CACHEFLUSH_H */ |