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ddd0c53018
The CP15 diagnostic register holds ARM errata bits on Cortex-A9, so it needs to be saved/restored on suspend/resume. Otherwise, the effectiveness of errata workaround gets lost together with diagnostic register bit across suspend/resume cycle. And the CP15 power control register of Cortex-A9 shares the same problem. The patch adds a couple of Cortex-A9 specific suspend/resume functions to save/restore these two Cortex-A9 CP15 registers across the suspend/resume cycle. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
265 lines
4.5 KiB
C
265 lines
4.5 KiB
C
/*
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* arch/arm/include/asm/glue-proc.h
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*
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* Copyright (C) 1997-1999 Russell King
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef ASM_GLUE_PROC_H
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#define ASM_GLUE_PROC_H
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#include <asm/glue.h>
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/*
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* Work out if we need multiple CPU support
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*/
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#undef MULTI_CPU
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#undef CPU_NAME
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/*
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* CPU_NAME - the prefix for CPU related functions
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*/
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#ifdef CONFIG_CPU_ARM7TDMI
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm7tdmi
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM720T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm720
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM740T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm740
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM9TDMI
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm9tdmi
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM920T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm920
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM922T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm922
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# endif
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#endif
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#ifdef CONFIG_CPU_FA526
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_fa526
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM925T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm925
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM926T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm926
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM940T
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm940
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM946E
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm946
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# endif
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#endif
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#ifdef CONFIG_CPU_SA110
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_sa110
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# endif
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#endif
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#ifdef CONFIG_CPU_SA1100
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_sa1100
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM1020
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm1020
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM1020E
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm1020e
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM1022
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm1022
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# endif
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#endif
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#ifdef CONFIG_CPU_ARM1026
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_arm1026
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# endif
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#endif
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#ifdef CONFIG_CPU_XSCALE
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_xscale
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# endif
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#endif
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#ifdef CONFIG_CPU_XSC3
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_xsc3
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# endif
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#endif
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#ifdef CONFIG_CPU_MOHAWK
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_mohawk
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# endif
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#endif
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#ifdef CONFIG_CPU_FEROCEON
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_feroceon
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# endif
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#endif
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#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_v6
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# endif
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#endif
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#ifdef CONFIG_CPU_V7M
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_v7m
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# endif
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#endif
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#ifdef CONFIG_CPU_PJ4B
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# ifdef CPU_NAME
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# undef MULTI_CPU
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# define MULTI_CPU
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# else
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# define CPU_NAME cpu_pj4b
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# endif
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#endif
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#ifdef CONFIG_CPU_V7
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/*
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* Cortex-A9 needs a different suspend/resume function, so we need
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* multiple CPU support for ARMv7 anyway.
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*/
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# undef MULTI_CPU
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# define MULTI_CPU
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#endif
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#ifndef MULTI_CPU
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#define cpu_proc_init __glue(CPU_NAME,_proc_init)
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#define cpu_proc_fin __glue(CPU_NAME,_proc_fin)
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#define cpu_reset __glue(CPU_NAME,_reset)
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#define cpu_do_idle __glue(CPU_NAME,_do_idle)
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#define cpu_dcache_clean_area __glue(CPU_NAME,_dcache_clean_area)
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#define cpu_do_switch_mm __glue(CPU_NAME,_switch_mm)
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#define cpu_set_pte_ext __glue(CPU_NAME,_set_pte_ext)
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#define cpu_suspend_size __glue(CPU_NAME,_suspend_size)
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#define cpu_do_suspend __glue(CPU_NAME,_do_suspend)
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#define cpu_do_resume __glue(CPU_NAME,_do_resume)
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#endif
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#endif
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