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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | #ifndef _ASM_IA64_ASMMACRO_H #define _ASM_IA64_ASMMACRO_H /* * Copyright (C) 2000-2001, 2003-2004 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> */ #include <linux/config.h> #define ENTRY(name) \ .align 32; \ .proc name; \ name: #define ENTRY_MIN_ALIGN(name) \ .align 16; \ .proc name; \ name: #define GLOBAL_ENTRY(name) \ .global name; \ ENTRY(name) #define END(name) \ .endp name /* * Helper macros to make unwind directives more readable: */ /* prologue_gr: */ #define ASM_UNW_PRLG_RP 0x8 #define ASM_UNW_PRLG_PFS 0x4 #define ASM_UNW_PRLG_PSP 0x2 #define ASM_UNW_PRLG_PR 0x1 #define ASM_UNW_PRLG_GRSAVE(ninputs) (32+(ninputs)) /* * Helper macros for accessing user memory. */ .section "__ex_table", "a" // declare section & section attributes .previous # define EX(y,x...) \ .xdata4 "__ex_table", 99f-., y-.; \ [99:] x # define EXCLR(y,x...) \ .xdata4 "__ex_table", 99f-., y-.+4; \ [99:] x /* * Mark instructions that need a load of a virtual address patched to be * a load of a physical address. We use this either in critical performance * path (ivt.S - TLB miss processing) or in places where it might not be * safe to use a "tpa" instruction (mca_asm.S - error recovery). */ .section ".data.patch.vtop", "a" // declare section & section attributes .previous #define LOAD_PHYSICAL(pr, reg, obj) \ [1:](pr)movl reg = obj; \ .xdata4 ".data.patch.vtop", 1b-. /* * For now, we always put in the McKinley E9 workaround. On CPUs that don't need it, * we'll patch out the work-around bundles with NOPs, so their impact is minimal. */ #define DO_MCKINLEY_E9_WORKAROUND #ifdef DO_MCKINLEY_E9_WORKAROUND .section ".data.patch.mckinley_e9", "a" .previous /* workaround for Itanium 2 Errata 9: */ # define FSYS_RETURN \ .xdata4 ".data.patch.mckinley_e9", 1f-.; \ 1:{ .mib; \ nop.m 0; \ mov r16=ar.pfs; \ br.call.sptk.many b7=2f;; \ }; \ 2:{ .mib; \ nop.m 0; \ mov ar.pfs=r16; \ br.ret.sptk.many b6;; \ } #else # define FSYS_RETURN br.ret.sptk.many b6 #endif /* * Up until early 2004, use of .align within a function caused bad unwind info. * TEXT_ALIGN(n) expands into ".align n" if a fixed GAS is available or into nothing * otherwise. */ #ifdef HAVE_WORKING_TEXT_ALIGN # define TEXT_ALIGN(n) .align n #else # define TEXT_ALIGN(n) #endif #ifdef HAVE_SERIALIZE_DIRECTIVE # define dv_serialize_data .serialize.data # define dv_serialize_instruction .serialize.instruction #else # define dv_serialize_data # define dv_serialize_instruction #endif #endif /* _ASM_IA64_ASMMACRO_H */ |