1  /*
  2   * Copyright (c) 2007 Apple Inc. All rights reserved.
  3   *
  4   * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  5   *
  6   * This file contains Original Code and/or Modifications of Original Code
  7   * as defined in and that are subject to the Apple Public Source License
  8   * Version 2.0 (the 'License'). You may not use this file except in
  9   * compliance with the License. The rights granted to you under the License
 10   * may not be used to create, or enable the creation or redistribution of,
 11   * unlawful or unlicensed copies of an Apple operating system, or to
 12   * circumvent, violate, or enable the circumvention or violation of, any
 13   * terms of an Apple operating system software license agreement.
 14   *
 15   * Please obtain a copy of the License at
 16   * http://www.opensource.apple.com/apsl/ and read it before using this file.
 17   *
 18   * The Original Code and all software distributed under the License are
 19   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 20   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 21   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 22   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 23   * Please see the License for the specific language governing rights and
 24   * limitations under the License.
 25   *
 26   * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 27   */
 28  #ifndef _ARM_CACHES_INTERNAL
 29  #define _ARM_CACHES_INTERNAL    1
 30  
 31  #include <arm/proc_reg.h>
 32  
 33  #include <kern/kern_types.h>
 34  
 35  extern void flush_dcache_syscall( vm_offset_t addr, unsigned length);
 36  
 37  #ifdef MACH_KERNEL_PRIVATE
 38  extern void flush_dcache(vm_offset_t addr, unsigned count, int phys);
 39  extern void flush_dcache64(addr64_t addr, unsigned count, int phys);
 40  extern void invalidate_icache(vm_offset_t addr, unsigned cnt, int phys);
 41  extern void invalidate_icache64(addr64_t addr, unsigned cnt, int phys);
 42  
 43  #if     defined(ARMA7)
 44  #define LWFlush 1
 45  #define LWClean 2
 46  extern void cache_xcall(unsigned int op);
 47  extern void cache_xcall_handler(unsigned int op);
 48  #endif
 49  #endif
 50  extern void clean_dcache(vm_offset_t addr, unsigned count, int phys);
 51  extern void clean_dcache64(addr64_t addr, unsigned count, int phys);
 52  
 53  extern void CleanPoC_Dcache(void);
 54  extern void CleanPoU_Dcache(void);
 55  
 56  /*
 57   * May not actually perform a flush on platforms
 58   * where AP caches are snooped by all agents on SoC.
 59   *
 60   * This is the one you need unless you really know what
 61   * you're doing.
 62   */
 63  extern void CleanPoC_DcacheRegion(vm_offset_t va, size_t length);
 64  
 65  /*
 66   * Always actually flushes the cache, even on platforms
 67   * where AP caches are snooped by all agents.  You
 68   * probably don't need to use this.  Intended for use in
 69   * panic save routine (where caches will be yanked by reset
 70   * and coherency doesn't help).
 71   */
 72  extern void CleanPoC_DcacheRegion_Force(vm_offset_t va, size_t length);
 73  
 74  extern void CleanPoU_DcacheRegion(vm_offset_t va, size_t length);
 75  
 76  extern void FlushPoC_Dcache(void);
 77  extern void FlushPoU_Dcache(void);
 78  extern void FlushPoC_DcacheRegion(vm_offset_t va, size_t length);
 79  
 80  #ifdef  __arm__
 81  extern void invalidate_mmu_cache(void);
 82  extern void invalidate_mmu_dcache(void);
 83  extern void invalidate_mmu_dcache_region(vm_offset_t va, size_t length);
 84  #endif
 85  
 86  extern void InvalidatePoU_Icache(void);
 87  extern void InvalidatePoU_IcacheRegion(vm_offset_t va, size_t length);
 88  
 89  extern void cache_sync_page(ppnum_t pp);
 90  
 91  extern void platform_cache_init(void);
 92  extern void platform_cache_idle_enter(void);
 93  extern void platform_cache_idle_exit(void);
 94  extern void platform_cache_flush(void);
 95  extern boolean_t platform_cache_batch_wimg(unsigned int new_wimg, unsigned int size);
 96  extern void platform_cache_flush_wimg(unsigned int new_wimg);
 97  extern void platform_cache_clean(void);
 98  extern void platform_cache_shutdown(void);
 99  extern void platform_cache_disable(void);
100  
101  #endif /* #ifndef _ARM_CACHES_INTERNAL */