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-rw-r--r--arch/mips/power/hibernate.S70
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/mips/power/hibernate.S b/arch/mips/power/hibernate.S
new file mode 100644
index 0000000..486bd3f
--- /dev/null
+++ b/arch/mips/power/hibernate.S
@@ -0,0 +1,70 @@
+/*
+ * Hibernation support specific for mips - temporary page tables
+ *
+ * Licensed under the GPLv2
+ *
+ * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Author: Hu Hongbing <huhb@lemote.com>
+ * Wu Zhangjin <wuzj@lemote.com>
+ */
+#include <asm/asm-offsets.h>
+#include <asm/regdef.h>
+#include <asm/asm.h>
+
+.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)
+ PTR_L t0, restore_pblist
+0:
+ PTR_L t1, PBE_ADDRESS(t0) /* source */
+ PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */
+ PTR_ADDIU 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
+ /* flush caches to make sure context is in memory */
+ PTR_L t0, __flush_cache_all
+ jalr t0
+ /* flush tlb entries */
+#ifdef CONFIG_SMP
+ jal flush_tlb_all
+#else
+ jal local_flush_tlb_all
+#endif
+ 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)