/*
- * Copyright (c) 2003-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the
+ * License may not be used to create, or enable the creation or
+ * redistribution of, unlawful or unlicensed copies of an Apple operating
+ * system, or to circumvent, violate, or enable the circumvention or
+ * violation of, any terms of an Apple operating system software license
+ * agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
+#include <sys/appleapiopts.h>
#include <machine/cpu_capabilities.h>
#include <machine/commpage.h>
.text
.align 2, 0x90
-// void sysFlushDcache( void *p, size_t len );
-// 32-bit version
-
Lsys_flush_dcache:
- movl 4(%esp),%ecx // get length
- movl 8(%esp),%edx // get ptr
- testl %ecx,%ecx // length 0?
- jz 2f // yes
- mfence // ensure previous stores make it to memory
-1:
- clflush (%edx) // flush a line
- addl $64,%edx
- subl $64,%ecx
- jnc 1b
- mfence // make sure memory is updated before we return
-2:
ret
- COMMPAGE_DESCRIPTOR(sys_flush_dcache,_COMM_PAGE_FLUSH_DCACHE,kCache64,0)
-
-
-// void sysFlushDcache( void *p, size_t len );
-// 64-bit version
- .code64
-Lsys_flush_dcache_64: // %rdi = ptr, %rsi = length
- testq %rsi,%rsi // length 0?
- jz 2f // yes
- mfence // ensure previous stores make it to memory
-1:
- clflush (%rdi) // flush a line
- addq $64,%rdi
- subq $64,%rsi
- jnc 1b
- mfence // make sure memory is updated before we return
-2:
- ret
- .code32
- COMMPAGE_DESCRIPTOR(sys_flush_dcache_64,_COMM_PAGE_FLUSH_DCACHE,kCache64,0)
-
-
-// void sysIcacheInvalidate( void *p, size_t len );
+ COMMPAGE_DESCRIPTOR(sys_flush_dcache,_COMM_PAGE_FLUSH_DCACHE,0,0)
Lsys_icache_invalidate:
- // This is a NOP on intel processors, since the intent of the API
- // is to make data executable, and Intel L1Is are coherent with L1D.
- // We can use same routine both in 32 and 64-bit mode, since it is
- // just a RET instruction.
ret
COMMPAGE_DESCRIPTOR(sys_icache_invalidate,_COMM_PAGE_FLUSH_ICACHE,0,0)
projects / apple / xnu.git / blobdiff