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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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97a98ae5b8
Asynchronous external abort is coded differently in DFSR with LPAE enabled.
Fixes: 9254970c "ARM: 8447/1: catch pending imprecise abort on unmask".
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
33 lines
669 B
C
33 lines
669 B
C
#ifndef __ARCH_ARM_FAULT_H
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#define __ARCH_ARM_FAULT_H
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/*
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* Fault status register encodings. We steal bit 31 for our own purposes.
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*/
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#define FSR_LNX_PF (1 << 31)
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#define FSR_WRITE (1 << 11)
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#define FSR_FS4 (1 << 10)
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#define FSR_FS3_0 (15)
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#define FSR_FS5_0 (0x3f)
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#ifdef CONFIG_ARM_LPAE
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#define FSR_FS_AEA 17
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static inline int fsr_fs(unsigned int fsr)
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{
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return fsr & FSR_FS5_0;
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}
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#else
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#define FSR_FS_AEA 22
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static inline int fsr_fs(unsigned int fsr)
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{
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return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
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}
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#endif
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void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
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void early_abt_enable(void);
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#endif /* __ARCH_ARM_FAULT_H */
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