1da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#ifndef _M68K_TLBFLUSH_H 2da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#define _M68K_TLBFLUSH_H 3da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 4da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#ifdef CONFIG_MMU 5da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#ifndef CONFIG_SUN3 6da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 7da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#include <asm/current.h> 8b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer#include <asm/mcfmmu.h> 9da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 10da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_kernel_page(void *addr) 11da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 12b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer if (CPU_IS_COLDFIRE) { 13b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer mmu_write(MMUOR, MMUOR_CNL); 14b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } else if (CPU_IS_040_OR_060) { 15da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer mm_segment_t old_fs = get_fs(); 16da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer set_fs(KERNEL_DS); 17da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__(".chip 68040\n\t" 18da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer "pflush (%0)\n\t" 19da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer ".chip 68k" 20da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer : : "a" (addr)); 21da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer set_fs(old_fs); 22da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } else if (CPU_IS_020_OR_030) 23da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr)); 24da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 25da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 26da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* 27da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer * flush all user-space atc entries. 28da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer */ 29da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void __flush_tlb(void) 30da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 31b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer if (CPU_IS_COLDFIRE) { 32b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer mmu_write(MMUOR, MMUOR_CNL); 33b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } else if (CPU_IS_040_OR_060) { 34da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__(".chip 68040\n\t" 35da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer "pflushan\n\t" 36da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer ".chip 68k"); 37b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } else if (CPU_IS_020_OR_030) { 38da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__("pflush #0,#4"); 39b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } 40da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 41da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 42da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void __flush_tlb040_one(unsigned long addr) 43da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 44da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__(".chip 68040\n\t" 45da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer "pflush (%0)\n\t" 46da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer ".chip 68k" 47da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer : : "a" (addr)); 48da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 49da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 50da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void __flush_tlb_one(unsigned long addr) 51da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 52b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer if (CPU_IS_COLDFIRE) 53b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer mmu_write(MMUOR, MMUOR_CNL); 54b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer else if (CPU_IS_040_OR_060) 55da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __flush_tlb040_one(addr); 56da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer else if (CPU_IS_020_OR_030) 57da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr)); 58da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 59da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 60da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#define flush_tlb() __flush_tlb() 61da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 62da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* 63da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer * flush all atc entries (both kernel and user-space entries). 64da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer */ 65da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_all(void) 66da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 67b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer if (CPU_IS_COLDFIRE) { 68b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer mmu_write(MMUOR, MMUOR_CNL); 69b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } else if (CPU_IS_040_OR_060) { 70da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__(".chip 68040\n\t" 71da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer "pflusha\n\t" 72da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer ".chip 68k"); 73b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } else if (CPU_IS_020_OR_030) { 74da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __asm__ __volatile__("pflusha"); 75b852de4e7f7d6f4373901e3a880f6f29a65e7937Greg Ungerer } 76da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 77da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 78da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_mm(struct mm_struct *mm) 79da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 80da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if (mm == current->active_mm) 81da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __flush_tlb(); 82da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 83da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 84da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) 85da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 86da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if (vma->vm_mm == current->active_mm) { 87da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer mm_segment_t old_fs = get_fs(); 88da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer set_fs(USER_DS); 89da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __flush_tlb_one(addr); 90da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer set_fs(old_fs); 91da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 92da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 93da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 94da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_range(struct vm_area_struct *vma, 95da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned long start, unsigned long end) 96da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 97da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if (vma->vm_mm == current->active_mm) 98da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer __flush_tlb(); 99da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 100da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 101da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) 102da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 103da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer flush_tlb_all(); 104da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 105da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 10649148020bcb6910ce71417bd990a5ce7017f9bd3Sam Ravnborg#else 107da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 108da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 109da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* Reserved PMEGs. */ 110da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererextern char sun3_reserved_pmeg[SUN3_PMEGS_NUM]; 111da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererextern unsigned long pmeg_vaddr[SUN3_PMEGS_NUM]; 112da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererextern unsigned char pmeg_alloc[SUN3_PMEGS_NUM]; 113da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererextern unsigned char pmeg_ctx[SUN3_PMEGS_NUM]; 114da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 115da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* Flush all userspace mappings one by one... (why no flush command, 116da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun?) */ 117da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_all(void) 118da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 119da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned long addr; 120da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned char ctx, oldctx; 121da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 122da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer oldctx = sun3_get_context(); 123da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) { 124da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer for(ctx = 0; ctx < 8; ctx++) { 125da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(ctx); 126da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_segmap(addr, SUN3_INVALID_PMEG); 127da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 128da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 129da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 130da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(oldctx); 131da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer /* erase all of the userspace pmeg maps, we've clobbered them 132da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer all anyway */ 133da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) { 134da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if(pmeg_alloc[addr] == 1) { 135da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_alloc[addr] = 0; 136da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_ctx[addr] = 0; 137da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_vaddr[addr] = 0; 138da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 139da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 140da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 141da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 142da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 143da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* Clear user TLB entries within the context named in mm */ 144da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_mm (struct mm_struct *mm) 145da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 146da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned char oldctx; 147da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned char seg; 148da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned long i; 149da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 150da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer oldctx = sun3_get_context(); 151da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(mm->context); 152da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 153da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) { 154da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer seg = sun3_get_segmap(i); 155da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if(seg == SUN3_INVALID_PMEG) 156da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer continue; 157da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 158da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_segmap(i, SUN3_INVALID_PMEG); 159da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_alloc[seg] = 0; 160da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_ctx[seg] = 0; 161da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_vaddr[seg] = 0; 162da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 163da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 164da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(oldctx); 165da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 166da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 167da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 168da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* Flush a single TLB page. In this case, we're limited to flushing a 169da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer single PMEG */ 170da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_page (struct vm_area_struct *vma, 171da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned long addr) 172da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 173da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned char oldctx; 174da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned char i; 175da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 176da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer oldctx = sun3_get_context(); 177da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(vma->vm_mm->context); 178da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer addr &= ~SUN3_PMEG_MASK; 179da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if((i = sun3_get_segmap(addr)) != SUN3_INVALID_PMEG) 180da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer { 181da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_alloc[i] = 0; 182da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_ctx[i] = 0; 183da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_vaddr[i] = 0; 184da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_segmap (addr, SUN3_INVALID_PMEG); 185da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 186da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(oldctx); 187da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 188da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 189da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* Flush a range of pages from TLB. */ 190da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 191da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_range (struct vm_area_struct *vma, 192da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned long start, unsigned long end) 193da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 194da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer struct mm_struct *mm = vma->vm_mm; 195da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned char seg, oldctx; 196da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 197da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer start &= ~SUN3_PMEG_MASK; 198da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 199da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer oldctx = sun3_get_context(); 200da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_context(mm->context); 201da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 202da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer while(start < end) 203da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer { 204da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if((seg = sun3_get_segmap(start)) == SUN3_INVALID_PMEG) 205da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer goto next; 206da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer if(pmeg_ctx[seg] == mm->context) { 207da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_alloc[seg] = 0; 208da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_ctx[seg] = 0; 209da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer pmeg_vaddr[seg] = 0; 210da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 211da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_segmap(start, SUN3_INVALID_PMEG); 212da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer next: 213da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer start += SUN3_PMEG_SIZE; 214da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer } 215da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 216da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 217da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) 218da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 219da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer flush_tlb_all(); 220da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 221da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 222da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* Flush kernel page from TLB. */ 223da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_kernel_page (unsigned long addr) 224da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 225da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer sun3_put_segmap (addr & ~(SUN3_PMEG_SIZE - 1), SUN3_INVALID_PMEG); 226da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 227da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 22849148020bcb6910ce71417bd990a5ce7017f9bd3Sam Ravnborg#endif 229da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 230da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#else /* !CONFIG_MMU */ 231da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 232da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* 233da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer * flush all user-space atc entries. 234da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer */ 235da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void __flush_tlb(void) 236da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 237da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 238da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 239da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 240da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void __flush_tlb_one(unsigned long addr) 241da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 242da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 243da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 244da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 245da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#define flush_tlb() __flush_tlb() 246da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 247da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer/* 248da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer * flush all atc entries (both kernel and user-space entries). 249da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer */ 250da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_all(void) 251da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 252da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 253da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 254da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 255da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_mm(struct mm_struct *mm) 256da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 257da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 258da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 259da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 260da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) 261da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 262da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 263da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 264da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 265da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_range(struct mm_struct *mm, 266da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer unsigned long start, unsigned long end) 267da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 268da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 269da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 270da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 271da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungererstatic inline void flush_tlb_kernel_page(unsigned long addr) 272da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer{ 273da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer BUG(); 274da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer} 275da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 276da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#endif /* CONFIG_MMU */ 277da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer 278da4f4a02abebb8b6f49e1585acbb23921a5da410Greg Ungerer#endif /* _M68K_TLBFLUSH_H */ 279