From f8fd30ebdb36f2598f382a6e57fa010477ad094f Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Sun, 29 Mar 2015 10:54:06 +0800 Subject: MIPS: Hibernate: Restructure files and functions This patch has no functional changes, it just to keep the assembler code to a minimum. Files and functions naming is borrowed from X86. Signed-off-by: Huacai Chen Cc: Steven J. Hill Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang Cc: Zhangjin Wu Patchwork: https://patchwork.linux-mips.org/patch/9616/ Signed-off-by: Ralf Baechle --- arch/mips/power/Makefile | 2 +- arch/mips/power/hibernate.S | 63 ----------------------------------------- arch/mips/power/hibernate.c | 10 +++++++ arch/mips/power/hibernate_asm.S | 61 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 72 insertions(+), 64 deletions(-) delete mode 100644 arch/mips/power/hibernate.S create mode 100644 arch/mips/power/hibernate.c create mode 100644 arch/mips/power/hibernate_asm.S (limited to 'arch/mips/power') diff --git a/arch/mips/power/Makefile b/arch/mips/power/Makefile index 73d56b87cb9b..70bd7883bc1b 100644 --- a/arch/mips/power/Makefile +++ b/arch/mips/power/Makefile @@ -1 +1 @@ -obj-$(CONFIG_HIBERNATION) += cpu.o hibernate.o +obj-$(CONFIG_HIBERNATION) += cpu.o hibernate.o hibernate_asm.o diff --git a/arch/mips/power/hibernate.S b/arch/mips/power/hibernate.S deleted file mode 100644 index e7567c8a9e79..000000000000 --- a/arch/mips/power/hibernate.S +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Hibernation support specific for mips - temporary page tables - * - * Licensed under the GPLv2 - * - * Copyright (C) 2009 Lemote Inc. - * Author: Hu Hongbing - * Wu Zhangjin - */ -#include -#include -#include - -.text -LEAF(swsusp_arch_suspend) - PTR_LA t0, saved_regs - PTR_S ra, PT_R31(t0) - PTR_S sp, PT_R29(t0) - PTR_S fp, PT_R30(t0) - PTR_S gp, PT_R28(t0) - PTR_S s0, PT_R16(t0) - PTR_S s1, PT_R17(t0) - PTR_S s2, PT_R18(t0) - PTR_S s3, PT_R19(t0) - PTR_S s4, PT_R20(t0) - PTR_S s5, PT_R21(t0) - PTR_S s6, PT_R22(t0) - PTR_S s7, PT_R23(t0) - j swsusp_save -END(swsusp_arch_suspend) - -LEAF(swsusp_arch_resume) - /* Avoid TLB mismatch during and after kernel resume */ - jal local_flush_tlb_all - PTR_L t0, restore_pblist -0: - PTR_L t1, PBE_ADDRESS(t0) /* source */ - PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */ - PTR_ADDU t3, t1, _PAGE_SIZE -1: - REG_L t8, (t1) - REG_S t8, (t2) - PTR_ADDIU t1, t1, SZREG - PTR_ADDIU t2, t2, SZREG - bne t1, t3, 1b - PTR_L t0, PBE_NEXT(t0) - bnez t0, 0b - PTR_LA t0, saved_regs - PTR_L ra, PT_R31(t0) - PTR_L sp, PT_R29(t0) - PTR_L fp, PT_R30(t0) - PTR_L gp, PT_R28(t0) - PTR_L s0, PT_R16(t0) - PTR_L s1, PT_R17(t0) - PTR_L s2, PT_R18(t0) - PTR_L s3, PT_R19(t0) - PTR_L s4, PT_R20(t0) - PTR_L s5, PT_R21(t0) - PTR_L s6, PT_R22(t0) - PTR_L s7, PT_R23(t0) - PTR_LI v0, 0x0 - jr ra -END(swsusp_arch_resume) diff --git a/arch/mips/power/hibernate.c b/arch/mips/power/hibernate.c new file mode 100644 index 000000000000..19a9af68bcdb --- /dev/null +++ b/arch/mips/power/hibernate.c @@ -0,0 +1,10 @@ +#include + +extern int restore_image(void); + +int swsusp_arch_resume(void) +{ + /* Avoid TLB mismatch during and after kernel resume */ + local_flush_tlb_all(); + return restore_image(); +} diff --git a/arch/mips/power/hibernate_asm.S b/arch/mips/power/hibernate_asm.S new file mode 100644 index 000000000000..b1fab951100f --- /dev/null +++ b/arch/mips/power/hibernate_asm.S @@ -0,0 +1,61 @@ +/* + * Hibernation support specific for mips - temporary page tables + * + * Licensed under the GPLv2 + * + * Copyright (C) 2009 Lemote Inc. + * Author: Hu Hongbing + * Wu Zhangjin + */ +#include +#include +#include + +.text +LEAF(swsusp_arch_suspend) + PTR_LA t0, saved_regs + PTR_S ra, PT_R31(t0) + PTR_S sp, PT_R29(t0) + PTR_S fp, PT_R30(t0) + PTR_S gp, PT_R28(t0) + PTR_S s0, PT_R16(t0) + PTR_S s1, PT_R17(t0) + PTR_S s2, PT_R18(t0) + PTR_S s3, PT_R19(t0) + PTR_S s4, PT_R20(t0) + PTR_S s5, PT_R21(t0) + PTR_S s6, PT_R22(t0) + PTR_S s7, PT_R23(t0) + j swsusp_save +END(swsusp_arch_suspend) + +LEAF(restore_image) + PTR_L t0, restore_pblist +0: + PTR_L t1, PBE_ADDRESS(t0) /* source */ + PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */ + PTR_ADDU t3, t1, _PAGE_SIZE +1: + REG_L t8, (t1) + REG_S t8, (t2) + PTR_ADDIU t1, t1, SZREG + PTR_ADDIU t2, t2, SZREG + bne t1, t3, 1b + PTR_L t0, PBE_NEXT(t0) + bnez t0, 0b + PTR_LA t0, saved_regs + PTR_L ra, PT_R31(t0) + PTR_L sp, PT_R29(t0) + PTR_L fp, PT_R30(t0) + PTR_L gp, PT_R28(t0) + PTR_L s0, PT_R16(t0) + PTR_L s1, PT_R17(t0) + PTR_L s2, PT_R18(t0) + PTR_L s3, PT_R19(t0) + PTR_L s4, PT_R20(t0) + PTR_L s5, PT_R21(t0) + PTR_L s6, PT_R22(t0) + PTR_L s7, PT_R23(t0) + PTR_LI v0, 0x0 + jr ra +END(restore_image) -- cgit