/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * 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 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
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * 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@
*/
/* Define some useful masks that convert from bit numbers */
#if __PPC__
-#if _BIG_ENDIAN
+#ifdef __BIG_ENDIAN__
#ifndef ENDIAN_MASK
#define ENDIAN_MASK(val,size) (1 << ((size-1) - val))
#endif
#else
#error code not ported to little endian targets yet
-#endif /* _BIG_ENDIAN */
+#endif /* __BIG_ENDIAN__ */
#endif /* __PPC__ */
#define MASK32(PART) ENDIAN_MASK(PART ## _BIT, 32)
/* Defines for decoding the MSR bits */
-#define MSR_SF_BIT 0
+#define MSR_SF_BIT 0
+#define MSR_HV_BIT 3
#define MSR_RES1_BIT 1
#define MSR_RES2_BIT 2
#define MSR_RES3_BIT 3
#define SR_UNUSED_BY_KERN_NUM 13
#define SR_COPYIN_NAME sr14
#define SR_COPYIN_NUM 14
+#define BAT_INVALID 0
/* DSISR bits on data access exceptions */
#define DSISR_IO_BIT 0 /* NOT USED on 601 */
#define DSISR_HASH_BIT 1
+#define DSISR_NOEX_BIT 3
#define DSISR_PROT_BIT 4
#define DSISR_IO_SPC_BIT 5
#define DSISR_WRITE_BIT 6
#define DSISR_WATCH_BIT 9
#define DSISR_EIO_BIT 11
+#define dsiMiss 0x40000000
+#define dsiMissb 1
+#define dsiNoEx 0x10000000
+#define dsiProt 0x08000000
+#define dsiInvMode 0x04000000
+#define dsiStore 0x02000000
+#define dsiAC 0x00400000
+#define dsiSeg 0x00200000
+#define dsiValid 0x5E600000
+#define dsiLinkage 0x00010000 /* Linkage mapping type - software flag */
+#define dsiLinkageb 15 /* Linkage mapping type - software flag */
+#define dsiSoftware 0x0000FFFF
+
/* SRR1 bits on data/instruction translation exceptions */
#define SRR1_TRANS_HASH_BIT 1
#define SRR1_PRG_PRV_INS_BIT 13
#define SRR1_PRG_TRAP_BIT 14
-/* BAT information */
-
-/* Constants used when setting mask values */
-
-#define BAT_INVALID 0
-
/*
* Virtual to physical mapping macros/structures.
* IMPORTANT NOTE: there is one mapping per HW page, not per MACH page.
*/
-#define CACHE_LINE_SIZE 32
-#define CACHE_LINE_POW2 5
-#define cache_align(x) (((x) + CACHE_LINE_SIZE-1) & ~(CACHE_LINE_SIZE - 1))
-
#define PTE1_WIMG_GUARD_BIT 28 /* Needed for assembler */
#define PTE1_REFERENCED_BIT 23 /* ditto */
#define PTE1_CHANGED_BIT 24
#define PTE0_HASH_ID_BIT 25
-#define PTE_NULL ((pte_t*) NULL) /* No pte found/associated with this */
-#define PTE_EMPTY 0x7fffffbf /* Value in the pte0.word of a free pte */
-
-#define PTE_WIMG_CB_CACHED 0 /* cached, writeback */
-#define PTE_WIMG_CB_CACHED_GUARDED 1 /* cached, writeback, guarded */
-#define PTE_WIMG_CB_CACHED_COHERENT 2 /* cached, writeback, coherent (default) */
-#define PTE_WIMG_CB_CACHED_COHERENT_GUARDED 3 /* cached, writeback, coherent, guarded */
-#define PTE_WIMG_UNCACHED 4 /* uncached */
-#define PTE_WIMG_UNCACHED_GUARDED 5 /* uncached, guarded */
-#define PTE_WIMG_UNCACHED_COHERENT 6 /* uncached, coherentt */
-#define PTE_WIMG_UNCACHED_COHERENT_GUARDED 7 /* uncached, coherent, guarded */
-#define PTE_WIMG_WT_CACHED 8 /* cached, writethru */
-#define PTE_WIMG_WT_CACHED_GUARDED 9 /* cached, writethru, guarded */
-#define PTE_WIMG_WT_CACHED_COHERENT 10 /* cached, writethru, coherent */
-#define PTE_WIMG_WT_CACHED_COHERENT_GUARDED 11 /* cached, writethru, coherent, guarded */
+#define PTE_WIMG_CB_CACHED_COHERENT 0 /* cached, writeback, coherent (default) */
+#define PTE_WIMG_CB_CACHED_COHERENT_GUARDED 1 /* cached, writeback, coherent, guarded */
+#define PTE_WIMG_UNCACHED_COHERENT 2 /* uncached, coherentt */
+#define PTE_WIMG_UNCACHED_COHERENT_GUARDED 3 /* uncached, coherent, guarded */
#define PTE_WIMG_DEFAULT PTE_WIMG_CB_CACHED_COHERENT
#define PTE_WIMG_IO PTE_WIMG_UNCACHED_COHERENT_GUARDED
#ifndef ASSEMBLER
#ifdef __GNUC__
-#if _BIG_ENDIAN == 0
-#error - bitfield structures are not checked for bit ordering in words
-#endif /* _BIG_ENDIAN */
-
/* Structures and types for machine registers */
-typedef union {
- unsigned int word;
- struct {
- unsigned int htaborg : 16;
- unsigned int reserved : 7;
- unsigned int htabmask : 9;
- } bits;
-} sdr1_t;
-
-/* Block mapping registers. These values are model dependent.
- * Eventually, we will need to up these to 64 bit values.
- */
-
-#define blokValid 0x1FFE0000
-#define batMin 0x00020000
-#define batMax 0x10000000
-#define batICnt 4
-#define batDCnt 4
-
-/* BAT register structures.
- * Not used for standard mappings, but may be used
- * for mapping devices. Note that the 601 has a
- * different BAT layout than the other PowerPC processors
- */
-
-typedef union {
- unsigned int word;
- struct {
- unsigned int blpi : 15;
- unsigned int reserved : 10;
- unsigned int wim : 3;
- unsigned int ks : 1;
- unsigned int ku : 1;
- unsigned int pp : 2;
- } bits;
-} bat601u_t;
-
-typedef union {
- unsigned int word;
- struct {
- unsigned int pbn : 15;
- unsigned int reserved : 10;
- unsigned int valid : 1;
- unsigned int bsm : 6;
- } bits;
-} bat601l_t;
-
-typedef struct bat601_t {
- bat601u_t upper;
- bat601l_t lower;
-} bat601_t;
-
-typedef union {
- unsigned int word;
- struct {
- unsigned int bepi : 15;
- unsigned int reserved : 4;
- unsigned int bl : 11;
- unsigned int vs : 1;
- unsigned int vp : 1;
- } bits;
-} batu_t;
-
-typedef union {
- unsigned int word;
- struct {
- unsigned int brpn : 15;
- unsigned int reserved : 10;
- unsigned int wimg : 4;
- unsigned int reserved2 : 1;
- unsigned int pp : 2;
- } bits;
-} batl_t;
-
-typedef struct bat_t {
- batu_t upper;
- batl_t lower;
-} bat_t;
-
-/* PTE entries
- * Used extensively for standard mappings
- */
-
-typedef union {
- unsigned int word;
- struct {
- unsigned int valid : 1;
- unsigned int segment_id : 24;
- unsigned int hash_id : 1;
- unsigned int page_index : 6; /* Abbreviated */
- } bits;
- struct {
- unsigned int valid : 1;
- unsigned int not_used : 5;
- unsigned int segment_id : 19; /* Least Sig 19 bits */
- unsigned int hash_id : 1;
- unsigned int page_index : 6;
- } hash_bits;
-} pte0_t;
-
-typedef union {
- unsigned int word;
- struct {
- unsigned int phys_page : 20;
- unsigned int reserved3 : 3;
- unsigned int referenced : 1;
- unsigned int changed : 1;
- unsigned int wimg : 4;
- unsigned int reserved1 : 1;
- unsigned int protection : 2;
- } bits;
-} pte1_t;
-
-typedef struct pte_t {
- pte0_t pte0;
- pte1_t pte1;
-} pte_t;
-
-/*
- * A virtual address is decoded into various parts when looking for its PTE
- */
-
-typedef struct va_full_t {
- unsigned int seg_num : 4;
- unsigned int page_index : 16;
- unsigned int byte_ofs : 12;
-} va_full_t;
-
-typedef struct va_abbrev_t { /* use bits.abbrev for abbreviated page index */
- unsigned int seg_num : 4;
- unsigned int page_index : 6;
- unsigned int junk : 10;
- unsigned int byte_ofs : 12;
-} va_abbrev_t;
-
-typedef union {
- unsigned int word;
- va_full_t full;
- va_abbrev_t abbrev;
-} virtual_addr_t;
-
-/* A physical address can be split up into page and offset */
-
-typedef struct pa_t {
- unsigned int page_no : 20;
- unsigned int offset : 12;
-} pa_t;
-
-typedef union {
- unsigned int word;
- pa_t bits;
-} physical_addr_t;
/*
* C-helper inline functions for accessing machine registers follow.
*/
-#ifdef __ELF__
-#define __CASMNL__ ";"
-#else
-#define __CASMNL__ "@"
-#endif
-
-/* Return the current GOT pointer */
-
-extern unsigned int get_got(void);
-
-extern __inline__ unsigned int get_got(void)
-{
- unsigned int result;
-#ifndef __ELF__
- __asm__ volatile("mr %0, r2" : "=r" (result));
-#else
- __asm__ volatile("mr %0, 2" : "=r" (result));
-#endif
- return result;
-}
-
/*
* Various memory/IO synchronisation instructions
*/
__asm__ volatile("isync")
-/*
- * This guy will make sure all tlbs on all processors finish their tlbies
- */
-#define tlbsync() \
- __asm__ volatile("tlbsync")
-
-
- /* Invalidate TLB entry. Caution, requires context synchronization.
- */
-extern void tlbie(unsigned int val);
-
-extern __inline__ void tlbie(unsigned int val)
-{
- __asm__ volatile("tlbie %0" : : "r" (val));
- return;
-}
-
-
-
/*
* Access to various system registers
*/
return result;
}
-/* mtsr and mfsr must be macros since SR must be hardcoded */
-
-#if __ELF__
-#define mtsr(SR, REG) \
- __asm__ volatile("sync" __CASMNL__ "mtsr %0, %1 " __CASMNL__ "isync" : : "i" (SR), "r" (REG));
-#define mfsr(REG, SR) \
- __asm__ volatile("mfsr %0, %1" : "=r" (REG) : "i" (SR));
-#else
-#define mtsr(SR, REG) \
- __asm__ volatile("sync" __CASMNL__ "mtsr sr%0, %1 " __CASMNL__ "isync" : : "i" (SR), "r" (REG));
-
-#define mfsr(REG, SR) \
- __asm__ volatile("mfsr %0, sr%1" : "=r" (REG) : "i" (SR));
-#endif
-
-
-extern void mtsrin(unsigned int val, unsigned int reg);
-
-extern __inline__ void mtsrin(unsigned int val, unsigned int reg)
-{
- __asm__ volatile("sync" __CASMNL__ "mtsrin %0, %1" __CASMNL__ " isync" : : "r" (val), "r" (reg));
- return;
-}
-
-extern unsigned int mfsrin(unsigned int reg);
-
-extern __inline__ unsigned int mfsrin(unsigned int reg)
-{
- unsigned int result;
- __asm__ volatile("mfsrin %0, %1" : "=r" (result) : "r" (reg));
- return result;
-}
-
-extern void mtsdr1(unsigned int val);
-
-extern __inline__ void mtsdr1(unsigned int val)
-{
- __asm__ volatile("mtsdr1 %0" : : "r" (val));
- return;
-}
-
-extern void mtdar(unsigned int val);
-
-extern __inline__ void mtdar(unsigned int val)
-{
- __asm__ volatile("mtdar %0" : : "r" (val));
- return;
-}
extern unsigned int mfdar(void);
return;
}
-extern int isync_mfdec(void);
-
-extern __inline__ int isync_mfdec(void)
-{
- int result;
- __asm__ volatile("isync" __CASMNL__ "mfdec %0" : "=r" (result));
- return result;
-}
-
-/* Read and write the value from the real-time clock
- * or time base registers. Note that you have to
- * use the right ones depending upon being on
- * 601 or 603/604. Care about carries between
- * the words and using the right registers must be
- * done by the calling function.
- */
-
extern void mttb(unsigned int val);
extern __inline__ void mttb(unsigned int val)
return result;
}
-extern void mtrtcl(unsigned int val);
-
-extern __inline__ void mtrtcl(unsigned int val)
-{
- __asm__ volatile("mtspr 21,%0" : : "r" (val));
- return;
-}
-
-extern unsigned int mfrtcl(void);
-
-extern __inline__ unsigned int mfrtcl(void)
-{
- unsigned int result;
- __asm__ volatile("mfspr %0,5" : "=r" (result));
- return result;
-}
-
-extern void mtrtcu(unsigned int val);
-
-extern __inline__ void mtrtcu(unsigned int val)
-{
- __asm__ volatile("mtspr 20,%0" : : "r" (val));
- return;
-}
-
-extern unsigned int mfrtcu(void);
-
-extern __inline__ unsigned int mfrtcu(void)
-{
- unsigned int result;
- __asm__ volatile("mfspr %0,4" : "=r" (result));
- return result;
-}
-
-extern void mtl2cr(unsigned int val);
-
-extern __inline__ void mtl2cr(unsigned int val)
-{
- __asm__ volatile("mtspr l2cr, %0" : : "r" (val));
- return;
-}
-
extern unsigned int mfl2cr(void);
extern __inline__ unsigned int mfl2cr(void)
/* macros since the argument n is a hard-coded constant */
-#define mtibatu(n, reg) __asm__ volatile("mtibatu " # n ", %0" : : "r" (reg))
-#define mtibatl(n, reg) __asm__ volatile("mtibatl " # n ", %0" : : "r" (reg))
-
-#define mtdbatu(n, reg) __asm__ volatile("mtdbatu " # n ", %0" : : "r" (reg))
-#define mtdbatl(n, reg) __asm__ volatile("mtdbatl " # n ", %0" : : "r" (reg))
-
-#define mfibatu(reg, n) __asm__ volatile("mfibatu %0, " # n : "=r" (reg))
-#define mfibatl(reg, n) __asm__ volatile("mfibatl %0, " # n : "=r" (reg))
-
-#define mfdbatu(reg, n) __asm__ volatile("mfdbatu %0, " # n : "=r" (reg))
-#define mfdbatl(reg, n) __asm__ volatile("mfdbatl %0, " # n : "=r" (reg))
-
#define mtsprg(n, reg) __asm__ volatile("mtsprg " # n ", %0" : : "r" (reg))
#define mfsprg(reg, n) __asm__ volatile("mfsprg %0, " # n : "=r" (reg))
projects / apple / xnu.git / blobdiff