[mirror_ubuntu-kernels.git] / arch / arm / mm / fault.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ARCH_ARM_FAULT_H
#define __ARCH_ARM_FAULT_H

/*
 * Fault status register encodings.  We steal bit 31 for our own purposes.
 */
#define FSR_LNX_PF		(1 << 31)
#define FSR_WRITE		(1 << 11)
#define FSR_FS4			(1 << 10)
#define FSR_FS3_0		(15)
#define FSR_FS5_0		(0x3f)

#ifdef CONFIG_ARM_LPAE
#define FSR_FS_AEA		17

static inline int fsr_fs(unsigned int fsr)
{
	return fsr & FSR_FS5_0;
}
#else
#define FSR_FS_AEA		22

static inline int fsr_fs(unsigned int fsr)
{
	return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
}
#endif

void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
void early_abt_enable(void);

#endif	/* __ARCH_ARM_FAULT_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
136848d4 CM	2	#ifndef __ARCH_ARM_FAULT_H
	3	#define __ARCH_ARM_FAULT_H
	4
	5	/*
	6	* Fault status register encodings. We steal bit 31 for our own purposes.
	7	*/
	8	#define FSR_LNX_PF (1 << 31)
	9	#define FSR_WRITE (1 << 11)
	10	#define FSR_FS4 (1 << 10)
	11	#define FSR_FS3_0 (15)
f7b8156d	12	#define FSR_FS5_0 (0x3f)
136848d4	13
f7b8156d	14	#ifdef CONFIG_ARM_LPAE
97a98ae5 AS	15	#define FSR_FS_AEA 17
97a98ae5 AS	16
f7b8156d CM	17	static inline int fsr_fs(unsigned int fsr)
	18	{
	19	return fsr & FSR_FS5_0;
	20	}
	21	#else
97a98ae5 AS	22	#define FSR_FS_AEA 22
97a98ae5 AS	23
136848d4 CM	24	static inline int fsr_fs(unsigned int fsr)
	25	{
	26	return (fsr & FSR_FS3_0) \| (fsr & FSR_FS4) >> 6;
	27	}
f7b8156d	28	#endif
1da177e4	29
136848d4	30	void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
9254970c	31	void early_abt_enable(void);
136848d4 CM	32
136848d4 CM	33	#endif /* __ARCH_ARM_FAULT_H */