xnu-344.21.73.tar.gz

[apple/xnu.git] / osfmk / kdp / ml / ppc / kdp_misc.s

diff --git a/osfmk/kdp/ml/ppc/kdp_misc.s b/osfmk/kdp/ml/ppc/kdp_misc.s
index 7ddbf68c1d3dd14e19fda0ae85eb557514bf0c2a..9eb3f6c6f80b32744504d93a4e9fe93d81f341f6 100644 (file)
--- a/osfmk/kdp/ml/ppc/kdp_misc.s
+++ b/osfmk/kdp/ml/ppc/kdp_misc.s
@@ -3,19 +3,22 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_LICENSE_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.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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. 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,
  * 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.
+ * 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_HEADER_END@
  */
  * 
  * @APPLE_LICENSE_HEADER_END@
  */


@@ -25,57 +28,41 @@
 #include <mach/ppc/vm_param.h>
 #include <assym.s>
 
 #include <mach/ppc/vm_param.h>
 #include <assym.s>
 

-.set kLog2CacheLineSize, 5
-.set kCacheLineSize, 32
- 
-ENTRY(kdp_flush_cache, TAG_NO_FRAME_USED)
-       cmpi    cr0,0,r4,0                      /* is this zero length? */
-       add     r4,r3,r4                        /* calculate last byte + 1 */
-       subi    r4,r4,1                         /* calculate last byte */
-
-       srwi    r5,r3,kLog2CacheLineSize        /* calc first cache line index */
-       srwi    r4,r4,kLog2CacheLineSize        /* calc last cache line index */
-       beq     cr0, LdataToCodeDone            /* done if zero length */
-
-       subf    r4,r5,r4                        /* calc diff (# lines minus 1) */
-       addi    r4,r4,1                         /* # of cache lines to flush */
-       slwi    r5,r5,kLog2CacheLineSize        /* calc addr of first cache line */
-
-       /* flush the data cache lines */
-       mr      r3,r5                           /* starting address for loop */
-       mtctr   r4                                      /* loop count */
-LdataToCodeFlushLoop:
-       dcbf    0, r3                                           /* flush the data cache line */
-       addi    r3,r3,kCacheLineSize            /* advance to next cache line */
-       bdnz    LdataToCodeFlushLoop            /* loop until count is zero */
-       sync                                                            /* wait until RAM is valid */
-
-       /* invalidate the code cache lines */
-       mr      r3,r5                                           /* starting address for loop */
-       mtctr   r4                                                      /* loop count */
-LdataToCodeInvalidateLoop:
-       icbi    0, r3                                           /* invalidate code cache line */
-       addi    r3,r3,kCacheLineSize            /* advance to next cache line */
-       bdnz    LdataToCodeInvalidateLoop       /* loop until count is zero */
-       sync                                                            /* wait until last icbi completes */
-       isync                                                           /* discard prefetched instructions */
-LdataToCodeDone:
-       blr                                                                     /* return nothing */
-

 ENTRY(kdp_sync_cache, TAG_NO_FRAME_USED)
        sync                                    /* data sync */
        isync                                   /* inst sync */
        blr                                             /* return nothing */
 
 ENTRY(kdp_sync_cache, TAG_NO_FRAME_USED)
        sync                                    /* data sync */
        isync                                   /* inst sync */
        blr                                             /* return nothing */
 

-ENTRY(kdp_xlate_off, TAG_NO_FRAME_USED)
-       mfmsr   r3
-       rlwinm  r4, r3, 0, MSR_DR_BIT+1, MSR_IR_BIT-1
-       mtmsr   r4
-       isync
-       blr

 
 

-ENTRY(kdp_xlate_restore, TAG_NO_FRAME_USED)
-       mtmsr   r3
-       isync
-       blr
+;
+;              This is a really stupid physical copy. 1 whole byte at a time...
+;              Source and dest are long longs.  We do this with 64-bit on if
+;              supported.
+;
+
+                       .align  5
+                       .globl  EXT(kdp_copy_phys)
+                       
+LEXT(kdp_copy_phys)

 
 

+                       mflr    r12                                             ; Save return
+                       
+                       bl              EXT(ml_set_physical_disabled)   ; No DR and get 64-bit
+                       
+                       rlwinm  r3,r3,0,1,0                             ; Dup low to high source
+                       rlwinm  r5,r5,0,1,0                             ; Dup low to high dest
+                       rlwimi  r3,r4,0,0,31                    ; Copy bottom on in source
+                       rlwimi  r5,r6,0,0,31                    ; Copy bottom on in dest
+                       
+kcpagain:      addic.  r7,r7,-1                                ; Drop count
+                       blt--   kcpdone                                 ; All done...
+                       lbz             r0,0(r3)                                ; Grab a whole one
+                       stb             r0,0(r5)                                ; Lay it gently down
+                       addi    r3,r3,1                                 ; Next source
+                       addi    r5,r5,1                                 ; Next destination
+                       b               kcpagain                                ; Once more with feeling...
+               
+kcpdone:       bl              EXT(ml_restore)                 ; Put trans, etc back
+                       mtlr    r12                                             ; Restore return
+                       blr                                                             ; Come again please...
+