assembly.h
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上传日期:2013-02-24
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- /*
- * Copyright (C) 1999 Hewlett-Packard (Frank Rowand)
- * Copyright (C) 1999 Philipp Rumpf <prumpf@tux.org>
- * Copyright (C) 1999 SuSE GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #ifndef _PARISC_ASSEMBLY_H
- #define _PARISC_ASSEMBLY_H
- #if defined(__LP64__) && defined(__ASSEMBLY__)
- /* the 64-bit pa gnu assembler unfortunately defaults to .level 1.1 or 2.0 so
- * work around that for now... */
- .level 2.0w
- #endif
- #include <asm/offset.h>
- #include <asm/page.h>
- #include <asm/asmregs.h>
- sp = 30
- gp = 27
- ipsw = 22
- #if __PAGE_OFFSET == 0xc0000000
- .macro tophys gr
- zdep gr, 31, 30, gr
- .endm
-
- .macro tovirt gr
- depi 3,1,2,gr
- .endm
- #else
- #error unknown __PAGE_OFFSET
- #endif
- .macro delay value
- ldil L%value, 1
- ldo R%value(1), 1
- addib,UV,n -1,1,.
- addib,NUV,n -1,1,.+8
- nop
- .endm
- .macro debug value
- .endm
- #ifdef __LP64__
- # define LDIL_FIXUP(reg) depdi 0,31,32,reg
- #else
- # define LDIL_FIXUP(reg)
- #endif
- /* load 32-bit 'value' into 'reg' compensating for the ldil
- * sign-extension when running in wide mode.
- * WARNING!! neither 'value' nor 'reg' can be expressions
- * containing '.'!!!! */
- .macro load32 value, reg
- ldil L%value, reg
- ldo R%value(reg), reg
- LDIL_FIXUP(reg)
- .endm
- #ifdef __LP64__
- #define LDREG ldd
- #define STREG std
- #define RP_OFFSET 16
- #else
- #define LDREG ldw
- #define STREG stw
- #define RP_OFFSET 20
- #endif
- .macro loadgp
- #ifdef __LP64__
- ldil L%__gp, %r27
- ldo R%__gp(%r27), %r27
- LDIL_FIXUP(%r27)
- #else
- ldil L%$global$, %r27
- ldo R%$global$(%r27), %r27
- #endif
- .endm
- #define SAVE_SP(r, where) mfsp r, %r1 ! STREG %r1, where
- #define REST_SP(r, where) LDREG where, %r1 ! mtsp %r1, r
- #define SAVE_CR(r, where) mfctl r, %r1 ! STREG %r1, where
- #define REST_CR(r, where) LDREG where, %r1 ! mtctl %r1, r
- .macro save_general regs
- STREG %r2, PT_GR2 (regs)
- STREG %r3, PT_GR3 (regs)
- STREG %r4, PT_GR4 (regs)
- STREG %r5, PT_GR5 (regs)
- STREG %r6, PT_GR6 (regs)
- STREG %r7, PT_GR7 (regs)
- STREG %r8, PT_GR8 (regs)
- STREG %r9, PT_GR9 (regs)
- STREG %r10, PT_GR10(regs)
- STREG %r11, PT_GR11(regs)
- STREG %r12, PT_GR12(regs)
- STREG %r13, PT_GR13(regs)
- STREG %r14, PT_GR14(regs)
- STREG %r15, PT_GR15(regs)
- STREG %r16, PT_GR16(regs)
- STREG %r17, PT_GR17(regs)
- STREG %r18, PT_GR18(regs)
- STREG %r19, PT_GR19(regs)
- STREG %r20, PT_GR20(regs)
- STREG %r21, PT_GR21(regs)
- STREG %r22, PT_GR22(regs)
- STREG %r23, PT_GR23(regs)
- STREG %r24, PT_GR24(regs)
- STREG %r25, PT_GR25(regs)
- /* r26 is clobbered by cr19 and assumed to be saved before hand */
- STREG %r27, PT_GR27(regs)
- STREG %r28, PT_GR28(regs)
- /* r29 is already saved and points to PT_xxx struct */
- /* r30 stack pointer saved in get_stack */
- STREG %r31, PT_GR31(regs)
- .endm
- .macro rest_general regs
- LDREG PT_GR2 (regs), %r2
- LDREG PT_GR3 (regs), %r3
- LDREG PT_GR4 (regs), %r4
- LDREG PT_GR5 (regs), %r5
- LDREG PT_GR6 (regs), %r6
- LDREG PT_GR7 (regs), %r7
- LDREG PT_GR8 (regs), %r8
- LDREG PT_GR9 (regs), %r9
- LDREG PT_GR10(regs), %r10
- LDREG PT_GR11(regs), %r11
- LDREG PT_GR12(regs), %r12
- LDREG PT_GR13(regs), %r13
- LDREG PT_GR14(regs), %r14
- LDREG PT_GR15(regs), %r15
- LDREG PT_GR16(regs), %r16
- LDREG PT_GR17(regs), %r17
- LDREG PT_GR18(regs), %r18
- LDREG PT_GR19(regs), %r19
- LDREG PT_GR20(regs), %r20
- LDREG PT_GR21(regs), %r21
- LDREG PT_GR22(regs), %r22
- LDREG PT_GR23(regs), %r23
- LDREG PT_GR24(regs), %r24
- LDREG PT_GR25(regs), %r25
- LDREG PT_GR26(regs), %r26
- LDREG PT_GR27(regs), %r27
- LDREG PT_GR28(regs), %r28
- /* r30 stack pointer restored in rest_stack */
- LDREG PT_GR31(regs), %r31
- .endm
- .macro save_fp regs
- fstd,ma %fr0, 8(regs)
- fstd,ma %fr1, 8(regs)
- fstd,ma %fr2, 8(regs)
- fstd,ma %fr3, 8(regs)
- fstd,ma %fr4, 8(regs)
- fstd,ma %fr5, 8(regs)
- fstd,ma %fr6, 8(regs)
- fstd,ma %fr7, 8(regs)
- fstd,ma %fr8, 8(regs)
- fstd,ma %fr9, 8(regs)
- fstd,ma %fr10, 8(regs)
- fstd,ma %fr11, 8(regs)
- fstd,ma %fr12, 8(regs)
- fstd,ma %fr13, 8(regs)
- fstd,ma %fr14, 8(regs)
- fstd,ma %fr15, 8(regs)
- fstd,ma %fr16, 8(regs)
- fstd,ma %fr17, 8(regs)
- fstd,ma %fr18, 8(regs)
- fstd,ma %fr19, 8(regs)
- fstd,ma %fr20, 8(regs)
- fstd,ma %fr21, 8(regs)
- fstd,ma %fr22, 8(regs)
- fstd,ma %fr23, 8(regs)
- fstd,ma %fr24, 8(regs)
- fstd,ma %fr25, 8(regs)
- fstd,ma %fr26, 8(regs)
- fstd,ma %fr27, 8(regs)
- fstd,ma %fr28, 8(regs)
- fstd,ma %fr29, 8(regs)
- fstd,ma %fr30, 8(regs)
- fstd %fr31, 0(regs)
- .endm
- .macro rest_fp regs
- fldd 0(regs), %fr31
- fldd,mb -8(regs), %fr30
- fldd,mb -8(regs), %fr29
- fldd,mb -8(regs), %fr28
- fldd,mb -8(regs), %fr27
- fldd,mb -8(regs), %fr26
- fldd,mb -8(regs), %fr25
- fldd,mb -8(regs), %fr24
- fldd,mb -8(regs), %fr23
- fldd,mb -8(regs), %fr22
- fldd,mb -8(regs), %fr21
- fldd,mb -8(regs), %fr20
- fldd,mb -8(regs), %fr19
- fldd,mb -8(regs), %fr18
- fldd,mb -8(regs), %fr17
- fldd,mb -8(regs), %fr16
- fldd,mb -8(regs), %fr15
- fldd,mb -8(regs), %fr14
- fldd,mb -8(regs), %fr13
- fldd,mb -8(regs), %fr12
- fldd,mb -8(regs), %fr11
- fldd,mb -8(regs), %fr10
- fldd,mb -8(regs), %fr9
- fldd,mb -8(regs), %fr8
- fldd,mb -8(regs), %fr7
- fldd,mb -8(regs), %fr6
- fldd,mb -8(regs), %fr5
- fldd,mb -8(regs), %fr4
- fldd,mb -8(regs), %fr3
- fldd,mb -8(regs), %fr2
- fldd,mb -8(regs), %fr1
- fldd,mb -8(regs), %fr0
- .endm
- #ifdef __LP64__
- .macro callee_save
- ldo 144(%r30), %r30
- std %r3, -144(%r30)
- std %r4, -136(%r30)
- std %r5, -128(%r30)
- std %r6, -120(%r30)
- std %r7, -112(%r30)
- std %r8, -104(%r30)
- std %r9, -96(%r30)
- std %r10, -88(%r30)
- std %r11, -80(%r30)
- std %r12, -72(%r30)
- std %r13, -64(%r30)
- std %r14, -56(%r30)
- std %r15, -48(%r30)
- std %r16, -40(%r30)
- std %r17, -32(%r30)
- std %r18, -24(%r30)
- .endm
- .macro callee_rest
- ldd -24(%r30), %r18
- ldd -32(%r30), %r17
- ldd -40(%r30), %r16
- ldd -48(%r30), %r15
- ldd -56(%r30), %r14
- ldd -64(%r30), %r13
- ldd -72(%r30), %r12
- ldd -80(%r30), %r11
- ldd -88(%r30), %r10
- ldd -96(%r30), %r9
- ldd -104(%r30), %r8
- ldd -112(%r30), %r7
- ldd -120(%r30), %r6
- ldd -128(%r30), %r5
- ldd -136(%r30), %r4
- ldd -144(%r30), %r3
- ldo -144(%r30), %r30
- .endm
- #else /* __LP64__ */
- .macro callee_save
- ldo 128(30), 30
- stw 3, -128(30)
- stw 4, -124(30)
- stw 5, -120(30)
- stw 6, -116(30)
- stw 7, -112(30)
- stw 8, -108(30)
- stw 9, -104(30)
- stw 10, -100(30)
- stw 11, -96(30)
- stw 12, -92(30)
- stw 13, -88(30)
- stw 14, -84(30)
- stw 15, -80(30)
- stw 16, -76(30)
- stw 17, -72(30)
- stw 18, -68(30)
- .endm
- .macro callee_rest
- ldw -68(30), 18
- ldw -72(30), 17
- ldw -76(30), 16
- ldw -80(30), 15
- ldw -84(30), 14
- ldw -88(30), 13
- ldw -92(30), 12
- ldw -96(30), 11
- ldw -100(30), 10
- ldw -104(30), 9
- ldw -108(30), 8
- ldw -112(30), 7
- ldw -116(30), 6
- ldw -120(30), 5
- ldw -124(30), 4
- ldw -128(30), 3
- ldo -128(30), 30
- .endm
- #endif /* __LP64__ */
- .macro save_specials regs
- SAVE_SP (%sr0, PT_SR0 (regs))
- SAVE_SP (%sr1, PT_SR1 (regs))
- SAVE_SP (%sr2, PT_SR2 (regs))
- SAVE_SP (%sr3, PT_SR3 (regs))
- SAVE_SP (%sr4, PT_SR4 (regs))
- SAVE_SP (%sr5, PT_SR5 (regs))
- SAVE_SP (%sr6, PT_SR6 (regs))
- SAVE_SP (%sr7, PT_SR7 (regs))
- SAVE_CR (%cr17, PT_IASQ0(regs))
- mtctl %r0, %cr17
- SAVE_CR (%cr17, PT_IASQ1(regs))
- SAVE_CR (%cr18, PT_IAOQ0(regs))
- mtctl %r0, %cr18
- SAVE_CR (%cr18, PT_IAOQ1(regs))
- SAVE_CR (%cr11, PT_SAR (regs))
- SAVE_CR (%cr22, PT_PSW (regs))
- SAVE_CR (%cr19, PT_IIR (regs))
- SAVE_CR (%cr28, PT_GR1 (regs))
- SAVE_CR (%cr31, PT_GR29 (regs))
- STREG %r26, PT_GR26 (regs)
- mfctl %cr29, %r26
- .endm
- .macro rest_specials regs
- REST_SP (%sr0, PT_SR0 (regs))
- REST_SP (%sr1, PT_SR1 (regs))
- REST_SP (%sr2, PT_SR2 (regs))
- REST_SP (%sr3, PT_SR3 (regs))
- REST_SP (%sr4, PT_SR4 (regs))
- REST_SP (%sr5, PT_SR5 (regs))
- REST_SP (%sr6, PT_SR6 (regs))
- REST_SP (%sr7, PT_SR7 (regs))
- REST_CR (%cr17, PT_IASQ0(regs))
- REST_CR (%cr17, PT_IASQ1(regs))
- REST_CR (%cr18, PT_IAOQ0(regs))
- REST_CR (%cr18, PT_IAOQ1(regs))
- REST_CR (%cr11, PT_SAR (regs))
- REST_CR (%cr22, PT_PSW (regs))
- .endm
- #endif