Cregit: Linux 5.16: fault.h

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Catalin Marinas	79	60.31%	2	25.00%
Linus Torvalds	17	12.98%	1	12.50%
Kefeng Wang	16	12.21%	1	12.50%
Alexander Sverdlin	8	6.11%	1	12.50%
Lucas Stach	6	4.58%	1	12.50%
Will Deacon	4	3.05%	1	12.50%
Greg Kroah-Hartman	1	0.76%	1	12.50%
Total	131		8

/* 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_CM			(1 << 13)
#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
#define FS_PERM_NOLL		0xC
#define FS_PERM_NOLL_MASK	0x3C

static inline int fsr_fs(unsigned int fsr)
{
	return fsr & FSR_FS5_0;
}
#else
#define FSR_FS_AEA		22
#define FS_L1_PERM             0xD
#define FS_L2_PERM             0xF

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 */