7f30491ccd
After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
#ifndef _ASM_IA64_ASMMACRO_H
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#define _ASM_IA64_ASMMACRO_H
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/*
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* Copyright (C) 2000-2001, 2003-2004 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#define ENTRY(name) \
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.align 32; \
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.proc name; \
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name:
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#define ENTRY_MIN_ALIGN(name) \
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.align 16; \
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.proc name; \
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name:
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#define GLOBAL_ENTRY(name) \
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.global name; \
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ENTRY(name)
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#define END(name) \
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.endp name
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/*
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* Helper macros to make unwind directives more readable:
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*/
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/* prologue_gr: */
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#define ASM_UNW_PRLG_RP 0x8
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#define ASM_UNW_PRLG_PFS 0x4
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#define ASM_UNW_PRLG_PSP 0x2
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#define ASM_UNW_PRLG_PR 0x1
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#define ASM_UNW_PRLG_GRSAVE(ninputs) (32+(ninputs))
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/*
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* Helper macros for accessing user memory.
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*
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* When adding any new .section/.previous entries here, make sure to
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* also add it to the DISCARD section in arch/ia64/kernel/gate.lds.S or
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* unpleasant things will happen.
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*/
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.section "__ex_table", "a" // declare section & section attributes
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.previous
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# define EX(y,x...) \
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.xdata4 "__ex_table", 99f-., y-.; \
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[99:] x
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# define EXCLR(y,x...) \
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.xdata4 "__ex_table", 99f-., y-.+4; \
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[99:] x
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/*
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* Tag MCA recoverable instruction ranges.
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*/
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.section "__mca_table", "a" // declare section & section attributes
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.previous
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# define MCA_RECOVER_RANGE(y) \
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.xdata4 "__mca_table", y-., 99f-.; \
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[99:]
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/*
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* Mark instructions that need a load of a virtual address patched to be
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* a load of a physical address. We use this either in critical performance
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* path (ivt.S - TLB miss processing) or in places where it might not be
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* safe to use a "tpa" instruction (mca_asm.S - error recovery).
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*/
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.section ".data.patch.vtop", "a" // declare section & section attributes
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.previous
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#define LOAD_PHYSICAL(pr, reg, obj) \
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[1:](pr)movl reg = obj; \
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.xdata4 ".data.patch.vtop", 1b-.
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/*
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* For now, we always put in the McKinley E9 workaround. On CPUs that don't need it,
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* we'll patch out the work-around bundles with NOPs, so their impact is minimal.
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*/
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#define DO_MCKINLEY_E9_WORKAROUND
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#ifdef DO_MCKINLEY_E9_WORKAROUND
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.section ".data.patch.mckinley_e9", "a"
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.previous
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/* workaround for Itanium 2 Errata 9: */
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# define FSYS_RETURN \
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.xdata4 ".data.patch.mckinley_e9", 1f-.; \
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1:{ .mib; \
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nop.m 0; \
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mov r16=ar.pfs; \
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br.call.sptk.many b7=2f;; \
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}; \
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2:{ .mib; \
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nop.m 0; \
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mov ar.pfs=r16; \
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br.ret.sptk.many b6;; \
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}
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#else
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# define FSYS_RETURN br.ret.sptk.many b6
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#endif
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/*
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* If physical stack register size is different from DEF_NUM_STACK_REG,
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* dynamically patch the kernel for correct size.
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*/
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.section ".data.patch.phys_stack_reg", "a"
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.previous
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#define LOAD_PHYS_STACK_REG_SIZE(reg) \
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[1:] adds reg=IA64_NUM_PHYS_STACK_REG*8+8,r0; \
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.xdata4 ".data.patch.phys_stack_reg", 1b-.
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/*
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* Up until early 2004, use of .align within a function caused bad unwind info.
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* TEXT_ALIGN(n) expands into ".align n" if a fixed GAS is available or into nothing
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* otherwise.
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*/
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#ifdef HAVE_WORKING_TEXT_ALIGN
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# define TEXT_ALIGN(n) .align n
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#else
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# define TEXT_ALIGN(n)
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#endif
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#ifdef HAVE_SERIALIZE_DIRECTIVE
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# define dv_serialize_data .serialize.data
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# define dv_serialize_instruction .serialize.instruction
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#else
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# define dv_serialize_data
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# define dv_serialize_instruction
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#endif
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#endif /* _ASM_IA64_ASMMACRO_H */
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