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文件: /usr/src/linux-headers-5.15.0-113/arch/sh/include/asm/entry-macros.S
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! SPDX-License-Identifier: GPL-2.0 ! entry.S macro define .macro cli stc sr, r0 or #0xf0, r0 ldc r0, sr .endm .macro sti mov #0xfffffff0, r11 extu.b r11, r11 not r11, r11 stc sr, r10 and r11, r10 #ifdef CONFIG_CPU_HAS_SR_RB stc k_g_imask, r11 or r11, r10 #endif ldc r10, sr .endm .macro get_current_thread_info, ti, tmp #ifdef CONFIG_CPU_HAS_SR_RB stc r7_bank, \ti #else mov #((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp shll8 \tmp shll2 \tmp mov r15, \ti and \tmp, \ti #endif .endm #ifdef CONFIG_TRACE_IRQFLAGS .macro TRACE_IRQS_ON mov.l r0, @-r15 mov.l r1, @-r15 mov.l r2, @-r15 mov.l r3, @-r15 mov.l r4, @-r15 mov.l r5, @-r15 mov.l r6, @-r15 mov.l r7, @-r15 mov.l 7834f, r0 jsr @r0 nop mov.l @r15+, r7 mov.l @r15+, r6 mov.l @r15+, r5 mov.l @r15+, r4 mov.l @r15+, r3 mov.l @r15+, r2 mov.l @r15+, r1 mov.l @r15+, r0 mov.l 7834f, r0 bra 7835f nop .balign 4 7834: .long trace_hardirqs_on 7835: .endm .macro TRACE_IRQS_OFF mov.l r0, @-r15 mov.l r1, @-r15 mov.l r2, @-r15 mov.l r3, @-r15 mov.l r4, @-r15 mov.l r5, @-r15 mov.l r6, @-r15 mov.l r7, @-r15 mov.l 7834f, r0 jsr @r0 nop mov.l @r15+, r7 mov.l @r15+, r6 mov.l @r15+, r5 mov.l @r15+, r4 mov.l @r15+, r3 mov.l @r15+, r2 mov.l @r15+, r1 mov.l @r15+, r0 mov.l 7834f, r0 bra 7835f nop .balign 4 7834: .long trace_hardirqs_off 7835: .endm #else .macro TRACE_IRQS_ON .endm .macro TRACE_IRQS_OFF .endm #endif #if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4) # define PREF(x) pref @x #else # define PREF(x) nop #endif /* * Macro for use within assembly. Because the DWARF unwinder * needs to use the frame register to unwind the stack, we * need to setup r14 with the value of the stack pointer as * the return address is usually on the stack somewhere. */ .macro setup_frame_reg #ifdef CONFIG_DWARF_UNWINDER mov r15, r14 #endif .endm
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