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/*
 * Copyright (C) 2013 - ARM Ltd
 * Author: Marc Zyngier <marc.zyngier@arm.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __ASM_ESR_H
#define __ASM_ESR_H

#include <asm/memory.h>
#include <asm/sysreg.h>

#define ESR_ELx_EC_UNKNOWN	(0x00)
#define ESR_ELx_EC_WFx		(0x01)
/* Unallocated EC: 0x02 */
#define ESR_ELx_EC_CP15_32	(0x03)
#define ESR_ELx_EC_CP15_64	(0x04)
#define ESR_ELx_EC_CP14_MR	(0x05)
#define ESR_ELx_EC_CP14_LS	(0x06)
#define ESR_ELx_EC_FP_ASIMD	(0x07)
#define ESR_ELx_EC_CP10_ID	(0x08)
/* Unallocated EC: 0x09 - 0x0B */
#define ESR_ELx_EC_CP14_64	(0x0C)
/* Unallocated EC: 0x0d */
#define ESR_ELx_EC_ILL		(0x0E)
/* Unallocated EC: 0x0F - 0x10 */
#define ESR_ELx_EC_SVC32	(0x11)
#define ESR_ELx_EC_HVC32	(0x12)
#define ESR_ELx_EC_SMC32	(0x13)
/* Unallocated EC: 0x14 */
#define ESR_ELx_EC_SVC64	(0x15)
#define ESR_ELx_EC_HVC64	(0x16)
#define ESR_ELx_EC_SMC64	(0x17)
#define ESR_ELx_EC_SYS64	(0x18)
#define ESR_ELx_EC_SVE		(0x19)
/* Unallocated EC: 0x1A - 0x1E */
#define ESR_ELx_EC_IMP_DEF	(0x1f)
#define ESR_ELx_EC_IABT_LOW	(0x20)
#define ESR_ELx_EC_IABT_CUR	(0x21)
#define ESR_ELx_EC_PC_ALIGN	(0x22)
/* Unallocated EC: 0x23 */
#define ESR_ELx_EC_DABT_LOW	(0x24)
#define ESR_ELx_EC_DABT_CUR	(0x25)
#define ESR_ELx_EC_SP_ALIGN	(0x26)
/* Unallocated EC: 0x27 */
#define ESR_ELx_EC_FP_EXC32	(0x28)
/* Unallocated EC: 0x29 - 0x2B */
#define ESR_ELx_EC_FP_EXC64	(0x2C)
/* Unallocated EC: 0x2D - 0x2E */
#define ESR_ELx_EC_SERROR	(0x2F)
#define ESR_ELx_EC_BREAKPT_LOW	(0x30)
#define ESR_ELx_EC_BREAKPT_CUR	(0x31)
#define ESR_ELx_EC_SOFTSTP_LOW	(0x32)
#define ESR_ELx_EC_SOFTSTP_CUR	(0x33)
#define ESR_ELx_EC_WATCHPT_LOW	(0x34)
#define ESR_ELx_EC_WATCHPT_CUR	(0x35)
/* Unallocated EC: 0x36 - 0x37 */
#define ESR_ELx_EC_BKPT32	(0x38)
/* Unallocated EC: 0x39 */
#define ESR_ELx_EC_VECTOR32	(0x3A)
/* Unallocted EC: 0x3B */
#define ESR_ELx_EC_BRK64	(0x3C)
/* Unallocated EC: 0x3D - 0x3F */
#define ESR_ELx_EC_MAX		(0x3F)

#define ESR_ELx_EC_SHIFT	(26)
#define ESR_ELx_EC_MASK		(UL(0x3F) << ESR_ELx_EC_SHIFT)
#define ESR_ELx_EC(esr)		(((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)

#define ESR_ELx_IL_SHIFT	(25)
#define ESR_ELx_IL		(UL(1) << ESR_ELx_IL_SHIFT)
#define ESR_ELx_ISS_MASK	(ESR_ELx_IL - 1)

/* ISS field definitions shared by different classes */
#define ESR_ELx_WNR_SHIFT	(6)
#define ESR_ELx_WNR		(UL(1) << ESR_ELx_WNR_SHIFT)

/* Asynchronous Error Type */
#define ESR_ELx_IDS_SHIFT	(24)
#define ESR_ELx_IDS		(UL(1) << ESR_ELx_IDS_SHIFT)
#define ESR_ELx_AET_SHIFT	(10)
#define ESR_ELx_AET		(UL(0x7) << ESR_ELx_AET_SHIFT)

#define ESR_ELx_AET_UC		(UL(0) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UEU		(UL(1) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UEO		(UL(2) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_UER		(UL(3) << ESR_ELx_AET_SHIFT)
#define ESR_ELx_AET_CE		(UL(6) << ESR_ELx_AET_SHIFT)

/* Shared ISS field definitions for Data/Instruction aborts */
#define ESR_ELx_SET_SHIFT	(11)
#define ESR_ELx_SET_MASK	(UL(3) << ESR_ELx_SET_SHIFT)
#define ESR_ELx_FnV_SHIFT	(10)
#define ESR_ELx_FnV		(UL(1) << ESR_ELx_FnV_SHIFT)
#define ESR_ELx_EA_SHIFT	(9)
#define ESR_ELx_EA		(UL(1) << ESR_ELx_EA_SHIFT)
#define ESR_ELx_S1PTW_SHIFT	(7)
#define ESR_ELx_S1PTW		(UL(1) << ESR_ELx_S1PTW_SHIFT)

/* Shared ISS fault status code(IFSC/DFSC) for Data/Instruction aborts */
#define ESR_ELx_FSC		(0x3F)
#define ESR_ELx_FSC_TYPE	(0x3C)
#define ESR_ELx_FSC_EXTABT	(0x10)
#define ESR_ELx_FSC_SERROR	(0x11)
#define ESR_ELx_FSC_ACCESS	(0x08)
#define ESR_ELx_FSC_FAULT	(0x04)
#define ESR_ELx_FSC_PERM	(0x0C)

/* ISS field definitions for Data Aborts */
#define ESR_ELx_ISV_SHIFT	(24)
#define ESR_ELx_ISV		(UL(1) << ESR_ELx_ISV_SHIFT)
#define ESR_ELx_SAS_SHIFT	(22)
#define ESR_ELx_SAS		(UL(3) << ESR_ELx_SAS_SHIFT)
#define ESR_ELx_SSE_SHIFT	(21)
#define ESR_ELx_SSE		(UL(1) << ESR_ELx_SSE_SHIFT)
#define ESR_ELx_SRT_SHIFT	(16)
#define ESR_ELx_SRT_MASK	(UL(0x1F) << ESR_ELx_SRT_SHIFT)
#define ESR_ELx_SF_SHIFT	(15)
#define ESR_ELx_SF 		(UL(1) << ESR_ELx_SF_SHIFT)
#define ESR_ELx_AR_SHIFT	(14)
#define ESR_ELx_AR 		(UL(1) << ESR_ELx_AR_SHIFT)
#define ESR_ELx_CM_SHIFT	(8)
#define ESR_ELx_CM 		(UL(1) << ESR_ELx_CM_SHIFT)

/* ISS field definitions for exceptions taken in to Hyp */
#define ESR_ELx_CV		(UL(1) << 24)
#define ESR_ELx_COND_SHIFT	(20)
#define ESR_ELx_COND_MASK	(UL(0xF) << ESR_ELx_COND_SHIFT)
#define ESR_ELx_WFx_ISS_WFE	(UL(1) << 0)
#define ESR_ELx_xVC_IMM_MASK	((1UL << 16) - 1)

#define DISR_EL1_IDS		(UL(1) << 24)
/*
 * DISR_EL1 and ESR_ELx share the bottom 13 bits, but the RES0 bits may mean
 * different things in the future...
 */
#define DISR_EL1_ESR_MASK	(ESR_ELx_AET | ESR_ELx_EA | ESR_ELx_FSC)

/* ESR value templates for specific events */

/* BRK instruction trap from AArch64 state */
#define ESR_ELx_VAL_BRK64(imm)					\
	((ESR_ELx_EC_BRK64 << ESR_ELx_EC_SHIFT) | ESR_ELx_IL |	\
	 ((imm) & 0xffff))

/* ISS field definitions for System instruction traps */
#define ESR_ELx_SYS64_ISS_RES0_SHIFT	22
#define ESR_ELx_SYS64_ISS_RES0_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_RES0_SHIFT)
#define ESR_ELx_SYS64_ISS_DIR_MASK	0x1
#define ESR_ELx_SYS64_ISS_DIR_READ	0x1
#define ESR_ELx_SYS64_ISS_DIR_WRITE	0x0

#define ESR_ELx_SYS64_ISS_RT_SHIFT	5
#define ESR_ELx_SYS64_ISS_RT_MASK	(UL(0x1f) << ESR_ELx_SYS64_ISS_RT_SHIFT)
#define ESR_ELx_SYS64_ISS_CRM_SHIFT	1
#define ESR_ELx_SYS64_ISS_CRM_MASK	(UL(0xf) << ESR_ELx_SYS64_ISS_CRM_SHIFT)
#define ESR_ELx_SYS64_ISS_CRN_SHIFT	10
#define ESR_ELx_SYS64_ISS_CRN_MASK	(UL(0xf) << ESR_ELx_SYS64_ISS_CRN_SHIFT)
#define ESR_ELx_SYS64_ISS_OP1_SHIFT	14
#define ESR_ELx_SYS64_ISS_OP1_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_OP1_SHIFT)
#define ESR_ELx_SYS64_ISS_OP2_SHIFT	17
#define ESR_ELx_SYS64_ISS_OP2_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_OP2_SHIFT)
#define ESR_ELx_SYS64_ISS_OP0_SHIFT	20
#define ESR_ELx_SYS64_ISS_OP0_MASK	(UL(0x3) << ESR_ELx_SYS64_ISS_OP0_SHIFT)
#define ESR_ELx_SYS64_ISS_SYS_MASK	(ESR_ELx_SYS64_ISS_OP0_MASK | \
					 ESR_ELx_SYS64_ISS_OP1_MASK | \
					 ESR_ELx_SYS64_ISS_OP2_MASK | \
					 ESR_ELx_SYS64_ISS_CRN_MASK | \
					 ESR_ELx_SYS64_ISS_CRM_MASK)
#define ESR_ELx_SYS64_ISS_SYS_VAL(op0, op1, op2, crn, crm) \
					(((op0) << ESR_ELx_SYS64_ISS_OP0_SHIFT) | \
					 ((op1) << ESR_ELx_SYS64_ISS_OP1_SHIFT) | \
					 ((op2) << ESR_ELx_SYS64_ISS_OP2_SHIFT) | \
					 ((crn) << ESR_ELx_SYS64_ISS_CRN_SHIFT) | \
					 ((crm) << ESR_ELx_SYS64_ISS_CRM_SHIFT))

#define ESR_ELx_SYS64_ISS_SYS_OP_MASK	(ESR_ELx_SYS64_ISS_SYS_MASK | \
					 ESR_ELx_SYS64_ISS_DIR_MASK)
/*
 * User space cache operations have the following sysreg encoding
 * in System instructions.
 * op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 12, 14 }, WRITE (L=0)
 */
#define ESR_ELx_SYS64_ISS_CRM_DC_CIVAC	14
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAP	12
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAU	11
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAC	10
#define ESR_ELx_SYS64_ISS_CRM_IC_IVAU	5

#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_MASK	(ESR_ELx_SYS64_ISS_OP0_MASK | \
						 ESR_ELx_SYS64_ISS_OP1_MASK | \
						 ESR_ELx_SYS64_ISS_OP2_MASK | \
						 ESR_ELx_SYS64_ISS_CRN_MASK | \
						 ESR_ELx_SYS64_ISS_DIR_MASK)
#define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_VAL \
				(ESR_ELx_SYS64_ISS_SYS_VAL(1, 3, 1, 7, 0) | \
				 ESR_ELx_SYS64_ISS_DIR_WRITE)

#define ESR_ELx_SYS64_ISS_SYS_CTR	ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 1, 0, 0)
#define ESR_ELx_SYS64_ISS_SYS_CTR_READ	(ESR_ELx_SYS64_ISS_SYS_CTR | \
					 ESR_ELx_SYS64_ISS_DIR_READ)

#define ESR_ELx_SYS64_ISS_SYS_CNTVCT	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 2, 14, 0) | \
					 ESR_ELx_SYS64_ISS_DIR_READ)

#define ESR_ELx_SYS64_ISS_SYS_CNTFRQ	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
					 ESR_ELx_SYS64_ISS_DIR_READ)

#define esr_sys64_to_sysreg(e)					\
	sys_reg((((e) & ESR_ELx_SYS64_ISS_OP0_MASK) >>		\
		 ESR_ELx_SYS64_ISS_OP0_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >>		\
		 ESR_ELx_SYS64_ISS_OP1_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >>		\
		 ESR_ELx_SYS64_ISS_CRN_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >>		\
		 ESR_ELx_SYS64_ISS_CRM_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >>		\
		 ESR_ELx_SYS64_ISS_OP2_SHIFT))

#define esr_cp15_to_sysreg(e)					\
	sys_reg(3,						\
		(((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >>		\
		 ESR_ELx_SYS64_ISS_OP1_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >>		\
		 ESR_ELx_SYS64_ISS_CRN_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >>		\
		 ESR_ELx_SYS64_ISS_CRM_SHIFT),			\
		(((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >>		\
		 ESR_ELx_SYS64_ISS_OP2_SHIFT))

#ifndef __ASSEMBLY__
#include <asm/types.h>

static inline bool esr_is_data_abort(u32 esr)
{
	const u32 ec = ESR_ELx_EC(esr);

	return ec == ESR_ELx_EC_DABT_LOW || ec == ESR_ELx_EC_DABT_CUR;
}

const char *esr_get_class_string(u32 esr);
#endif /* __ASSEMBLY */

#endif /* __ASM_ESR_H */

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Kbuild File 703 B 0644
acenv.h File 541 B 0644
acpi.h File 4.34 KB 0644
alternative.h File 7.63 KB 0644
arch_gicv3.h File 3.44 KB 0644
arch_timer.h File 4.87 KB 0644
arm-cci.h File 794 B 0644
asm-bug.h File 1.45 KB 0644
asm-offsets.h File 35 B 0644
asm-uaccess.h File 2.09 KB 0644
assembler.h File 13.51 KB 0644
atomic.h File 8.35 KB 0644
atomic_ll_sc.h File 10.62 KB 0644
atomic_lse.h File 14.82 KB 0644
barrier.h File 3.78 KB 0644
bitops.h File 1.9 KB 0644
bitrev.h File 452 B 0644
boot.h File 384 B 0644
brk-imm.h File 706 B 0644
bug.h File 1.09 KB 0644
cache.h File 2.23 KB 0644
cacheflush.h File 4.87 KB 0644
checksum.h File 1.35 KB 0644
clocksource.h File 192 B 0644
cmpxchg.h File 7.98 KB 0644
compat.h File 7.15 KB 0644
compiler.h File 1.18 KB 0644
cpu.h File 1.84 KB 0644
cpu_ops.h File 2.73 KB 0644
cpucaps.h File 1.83 KB 0644
cpufeature.h File 19.14 KB 0644
cpuidle.h File 401 B 0644
cputype.h File 8.1 KB 0644
current.h File 517 B 0644
daifflags.h File 1.59 KB 0644
dcc.h File 1.36 KB 0644
debug-monitors.h File 3.76 KB 0644
device.h File 886 B 0644
dma-mapping.h File 2.42 KB 0644
dmi.h File 850 B 0644
efi.h File 4.57 KB 0644
elf.h File 5.7 KB 0644
esr.h File 9.02 KB 0644
exception.h File 1.21 KB 0644
exec.h File 868 B 0644
extable.h File 815 B 0644
fb.h File 1000 B 0644
fixmap.h File 2.91 KB 0644
fpsimd.h File 4.21 KB 0644
fpsimdmacros.h File 5.62 KB 0644
ftrace.h File 1.92 KB 0644
futex.h File 3.41 KB 0644
hardirq.h File 2.08 KB 0644
hugetlb.h File 2.71 KB 0644
hw_breakpoint.h File 4.46 KB 0644
hwcap.h File 1.86 KB 0644
hypervisor.h File 144 B 0644
insn.h File 16.03 KB 0644
io.h File 7.72 KB 0644
irq.h File 307 B 0644
irq_work.h File 228 B 0644
irqflags.h File 2.3 KB 0644
jump_label.h File 1.68 KB 0644
kasan.h File 1.16 KB 0644
kernel-pgtable.h File 4.03 KB 0644
kexec.h File 2.42 KB 0644
kgdb.h File 3.79 KB 0644
kprobes.h File 1.74 KB 0644
kvm_arm.h File 8.38 KB 0644
kvm_asm.h File 4.26 KB 0644
kvm_coproc.h File 2.04 KB 0644
kvm_emulate.h File 10.38 KB 0644
kvm_host.h File 15.73 KB 0644
kvm_hyp.h File 5.79 KB 0644
kvm_mmio.h File 1.3 KB 0644
kvm_mmu.h File 11.72 KB 0644
linkage.h File 114 B 0644
lse.h File 1.26 KB 0644
memblock.h File 720 B 0644
memory.h File 9.32 KB 0644
mmu.h File 2.74 KB 0644
mmu_context.h File 6.35 KB 0644
mmzone.h File 266 B 0644
module.h File 2.8 KB 0644
neon.h File 815 B 0644
numa.h File 1.33 KB 0644
page-def.h File 1.17 KB 0644
page.h File 1.61 KB 0644
paravirt.h File 458 B 0644
pci.h File 878 B 0644
percpu.h File 7.48 KB 0644
perf_event.h File 3.17 KB 0644
pgalloc.h File 3.71 KB 0644
pgtable-hwdef.h File 9.4 KB 0644
pgtable-prot.h File 4.38 KB 0644
pgtable-types.h File 1.84 KB 0644
pgtable.h File 21.55 KB 0644
probes.h File 1022 B 0644
proc-fns.h File 1.21 KB 0644
processor.h File 6.52 KB 0644
ptdump.h File 1.42 KB 0644
ptrace.h File 9 KB 0644
sdei.h File 1.46 KB 0644
seccomp.h File 714 B 0644
sections.h File 1.46 KB 0644
shmparam.h File 965 B 0644
signal32.h File 1.45 KB 0644
simd.h File 1.39 KB 0644
smp.h File 4.23 KB 0644
smp_plat.h File 1.43 KB 0644
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spinlock.h File 3.33 KB 0644
spinlock_types.h File 1.06 KB 0644
stack_pointer.h File 247 B 0644
stackprotector.h File 1.11 KB 0644
stacktrace.h File 2.53 KB 0644
stage2_pgtable-nopmd.h File 1.3 KB 0644
stage2_pgtable-nopud.h File 1.24 KB 0644
stage2_pgtable.h File 4.89 KB 0644
stat.h File 1.43 KB 0644
string.h File 2.33 KB 0644
suspend.h File 1.65 KB 0644
sync_bitops.h File 1.11 KB 0644
syscall.h File 2.87 KB 0644
sysreg.h File 25.1 KB 0644
system_misc.h File 1.86 KB 0644
thread_info.h File 3.93 KB 0644
timex.h File 883 B 0644
tlb.h File 2.22 KB 0644
tlbflush.h File 5.38 KB 0644
topology.h File 1.29 KB 0644
traps.h File 3.33 KB 0644
uaccess.h File 12.01 KB 0644
unistd.h File 1.6 KB 0644
unistd32.h File 27.53 KB 0644
uprobes.h File 777 B 0644
vdso.h File 1.09 KB 0644
vdso_datapage.h File 1.53 KB 0644
vectors.h File 1.75 KB 0644
virt.h File 3 KB 0644
vmap_stack.h File 769 B 0644
word-at-a-time.h File 2.22 KB 0644