MIPS: Move definitions for 32/64-bit agonstic inline assembler to new file.
Inspired by Markos Chandras' patch. I just didn't want do pull bitsops.h into pgtable.h. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> References: https://patchwork.linux-mips.org/patch/11052/
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@ -19,25 +19,10 @@
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#include <asm/byteorder.h> /* sigh ... */
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#include <asm/compiler.h>
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#include <asm/cpu-features.h>
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#include <asm/llsc.h>
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#include <asm/sgidefs.h>
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#include <asm/war.h>
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#if _MIPS_SZLONG == 32
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#define SZLONG_LOG 5
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#define SZLONG_MASK 31UL
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#define __LL "ll "
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#define __SC "sc "
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#define __INS "ins "
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#define __EXT "ext "
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#elif _MIPS_SZLONG == 64
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#define SZLONG_LOG 6
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#define SZLONG_MASK 63UL
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#define __LL "lld "
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#define __SC "scd "
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#define __INS "dins "
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#define __EXT "dext "
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#endif
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/*
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* These are the "slower" versions of the functions and are in bitops.c.
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* These functions call raw_local_irq_{save,restore}().
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@ -0,0 +1,28 @@
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Macros for 32/64-bit neutral inline assembler
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*/
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#ifndef __ASM_LLSC_H
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#define __ASM_LLSC_H
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#if _MIPS_SZLONG == 32
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#define SZLONG_LOG 5
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#define SZLONG_MASK 31UL
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#define __LL "ll "
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#define __SC "sc "
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#define __INS "ins "
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#define __EXT "ext "
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#elif _MIPS_SZLONG == 64
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#define SZLONG_LOG 6
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#define SZLONG_MASK 63UL
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#define __LL "lld "
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#define __SC "scd "
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#define __INS "dins "
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#define __EXT "dext "
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#endif
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#endif /* __ASM_LLSC_H */
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@ -187,23 +187,16 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
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* For SMP, multiple CPUs can race, so we need to do
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* this atomically.
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*/
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#ifdef CONFIG_64BIT
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#define LL_INSN "lld"
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#define SC_INSN "scd"
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#else /* CONFIG_32BIT */
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#define LL_INSN "ll"
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#define SC_INSN "sc"
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#endif
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unsigned long page_global = _PAGE_GLOBAL;
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unsigned long tmp;
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__asm__ __volatile__ (
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" .set push\n"
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" .set noreorder\n"
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"1: " LL_INSN " %[tmp], %[buddy]\n"
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"1: " __LL " %[tmp], %[buddy]\n"
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" bnez %[tmp], 2f\n"
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" or %[tmp], %[tmp], %[global]\n"
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" " SC_INSN " %[tmp], %[buddy]\n"
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" " __SC " %[tmp], %[buddy]\n"
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" beqz %[tmp], 1b\n"
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" nop\n"
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"2:\n"
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