Cregit: Linux 6.4: fault.h

Contributors: 9
Author	Tokens	Token Proportion	Commits	Commit Proportion
Russell King	52	36.36%	2	10.53%
Catalin Marinas	28	19.58%	3	15.79%
Kefeng Wang	28	19.58%	2	10.53%
Linus Torvalds (pre-git)	13	9.09%	6	31.58%
Alexander Sverdlin	8	5.59%	1	5.26%
Lucas Stach	6	4.20%	1	5.26%
Will Deacon	4	2.80%	1	5.26%
Linus Torvalds	3	2.10%	2	10.53%
Greg Kroah-Hartman	1	0.70%	1	5.26%
Total	143		19

/* 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_TRANS_NOLL		0x4
#define FS_PERM_NOLL		0xC
#define FS_MMU_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_TRANS		0x5
#define FS_L2_TRANS		0x7
#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 */