arch/arm64/kernel/cpu_errata.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Contains CPU specific errata definitions
 *
 * Copyright (C) 2014 ARM Ltd.
 */

#include <linux/arm-smccc.h>
#include <linux/types.h>
#include <linux/cpu.h>
#include <asm/cpu.h>
#include <asm/cputype.h>
#include <asm/cpufeature.h>
#include <asm/fpsimd.h>
#include <asm/kvm_asm.h>
#include <asm/smp_plat.h>

static u64 target_impl_cpu_num;
static struct target_impl_cpu *target_impl_cpus;

bool cpu_errata_set_target_impl(u64 num, void *impl_cpus)
{
	if (target_impl_cpu_num || !num || !impl_cpus)
		return false;

	target_impl_cpu_num = num;
	target_impl_cpus = impl_cpus;
	return true;
}

static inline bool __is_midr_in_range(u32 midr, struct midr_range const *range)
{
	return midr_is_cpu_model_range(midr, range->model,
				       range->rv_min, range->rv_max);
}

static inline bool is_midr_in_range(struct midr_range const *range)
{
	int i;

	if (!target_impl_cpu_num)
		return __is_midr_in_range(read_cpuid_id(), range);

	for (i = 0; i < target_impl_cpu_num; i++) {
		if (__is_midr_in_range(target_impl_cpus[i].midr, range))
			return true;
	}
	return false;
}

bool is_midr_in_range_list(struct midr_range const *ranges)
{
	while (ranges->model)
		if (is_midr_in_range(ranges++))
			return true;
	return false;
}
EXPORT_SYMBOL_GPL(is_midr_in_range_list);

static bool __maybe_unused
__is_affected_midr_range(const struct arm64_cpu_capabilities *entry,
			 u32 midr, u32 revidr)
{
	const struct arm64_midr_revidr *fix;
	if (!__is_midr_in_range(midr, &entry->midr_range))
		return false;

	midr &= MIDR_REVISION_MASK | MIDR_VARIANT_MASK;
	for (fix = entry->fixed_revs; fix && fix->revidr_mask; fix++)
		if (midr == fix->midr_rv && (revidr & fix->revidr_mask))
			return false;
	return true;
}

static bool __maybe_unused
is_affected_midr_range(const struct arm64_cpu_capabilities *entry, int scope)
{
	int i;

	if (!target_impl_cpu_num) {
		WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
		return __is_affected_midr_range(entry, read_cpuid_id(),
						read_cpuid(REVIDR_EL1));
	}

	for (i = 0; i < target_impl_cpu_num; i++) {
		if (__is_affected_midr_range(entry, target_impl_cpus[i].midr,
					     target_impl_cpus[i].revidr))
			return true;
	}
	return false;
}

static bool __maybe_unused
is_affected_midr_range_list(const struct arm64_cpu_capabilities *entry,
			    int scope)
{
	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
	return is_midr_in_range_list(entry->midr_range_list);
}

static bool __maybe_unused
is_kryo_midr(const struct arm64_cpu_capabilities *entry, int scope)
{
	u32 model;

	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());

	model = read_cpuid_id();
	model &= MIDR_IMPLEMENTOR_MASK | (0xf00 << MIDR_PARTNUM_SHIFT) |
		 MIDR_ARCHITECTURE_MASK;

	return model == entry->midr_range.model;
}

static bool
has_mismatched_cache_type(const struct arm64_cpu_capabilities *entry,
			  int scope)
{
	u64 mask = arm64_ftr_reg_ctrel0.strict_mask;
	u64 sys = arm64_ftr_reg_ctrel0.sys_val & mask;
	u64 ctr_raw, ctr_real;

	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());

	/*
	 * We want to make sure that all the CPUs in the system expose
	 * a consistent CTR_EL0 to make sure that applications behaves
	 * correctly with migration.
	 *
	 * If a CPU has CTR_EL0.IDC but does not advertise it via CTR_EL0 :
	 *
	 * 1) It is safe if the system doesn't support IDC, as CPU anyway
	 *    reports IDC = 0, consistent with the rest.
	 *
	 * 2) If the system has IDC, it is still safe as we trap CTR_EL0
	 *    access on this CPU via the ARM64_HAS_CACHE_IDC capability.
	 *
	 * So, we need to make sure either the raw CTR_EL0 or the effective
	 * CTR_EL0 matches the system's copy to allow a secondary CPU to boot.
	 */
	ctr_raw = read_cpuid_cachetype() & mask;
	ctr_real = read_cpuid_effective_cachetype() & mask;

	return (ctr_real != sys) && (ctr_raw != sys);
}

#ifdef CONFIG_ARM64_ERRATUM_4311569
static DEFINE_STATIC_KEY_FALSE(arm_si_l1_workaround_4311569);
static int __init early_arm_si_l1_workaround_4311569_cfg(char *arg)
{
	static_branch_enable(&arm_si_l1_workaround_4311569);
	pr_info("Enabling cache maintenance workaround for ARM SI-L1 erratum 4311569\n");

	return 0;
}
early_param("arm_si_l1_workaround_4311569", early_arm_si_l1_workaround_4311569_cfg);

/*
 * We have some earlier use cases to call cache maintenance operation functions, for example,
 * dcache_inval_poc() and dcache_clean_poc() in head.S, before making decision to turn on this
 * workaround. Since the scope of this workaround is limited to non-coherent DMA agents, its
 * safe to have the workaround off by default.
 */
static bool
need_arm_si_l1_workaround_4311569(const struct arm64_cpu_capabilities *entry, int scope)
{
	return static_branch_unlikely(&arm_si_l1_workaround_4311569);
}
#endif

static void
cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *cap)
{
	u64 mask = arm64_ftr_reg_ctrel0.strict_mask;
	bool enable_uct_trap = false;

	/* Trap CTR_EL0 access on this CPU, only if it has a mismatch */
	if ((read_cpuid_cachetype() & mask) !=
	    (arm64_ftr_reg_ctrel0.sys_val & mask))
		enable_uct_trap = true;

	/* ... or if the system is affected by an erratum */
	if (cap->capability == ARM64_WORKAROUND_1542419)
		enable_uct_trap = true;

	if (enable_uct_trap)
		sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCT, 0);
}

#ifdef CONFIG_ARM64_ERRATUM_1463225
static bool
has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities *entry,
			       int scope)
{
	return is_affected_midr_range_list(entry, scope) && is_kernel_in_hyp_mode();
}
#endif

static void __maybe_unused
cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused)
{
	sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCI, 0);
}

#define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max)	\
	.matches = is_affected_midr_range,			\
	.midr_range = MIDR_RANGE(model, v_min, r_min, v_max, r_max)

#define CAP_MIDR_ALL_VERSIONS(model)					\
	.matches = is_affected_midr_range,				\
	.midr_range = MIDR_ALL_VERSIONS(model)

#define MIDR_FIXED(rev, revidr_mask) \
	.fixed_revs = (struct arm64_midr_revidr[]){{ (rev), (revidr_mask) }, {}}

#define ERRATA_MIDR_RANGE(model, v_min, r_min, v_max, r_max)		\
	.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,				\
	CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max)

#define CAP_MIDR_RANGE_LIST(list)				\
	.matches = is_affected_midr_range_list,			\
	.midr_range_list = list

/* Errata affecting a range of revisions of  given model variant */
#define ERRATA_MIDR_REV_RANGE(m, var, r_min, r_max)	 \
	ERRATA_MIDR_RANGE(m, var, r_min, var, r_max)

/* Errata affecting a single variant/revision of a model */
#define ERRATA_MIDR_REV(model, var, rev)	\
	ERRATA_MIDR_RANGE(model, var, rev, var, rev)

/* Errata affecting all variants/revisions of a given a model */
#define ERRATA_MIDR_ALL_VERSIONS(model)				\
	.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,			\
	CAP_MIDR_ALL_VERSIONS(model)

/* Errata affecting a list of midr ranges, with same work around */
#define ERRATA_MIDR_RANGE_LIST(midr_list)			\
	.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,			\
	CAP_MIDR_RANGE_LIST(midr_list)

static const __maybe_unused struct midr_range tx2_family_cpus[] = {
	MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
	MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
	{},
};

static bool __maybe_unused
needs_tx2_tvm_workaround(const struct arm64_cpu_capabilities *entry,
			 int scope)
{
	int i;

	if (!is_affected_midr_range_list(entry, scope) ||
	    !is_hyp_mode_available())
		return false;

	for_each_possible_cpu(i) {
		if (MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 0) != 0)
			return true;
	}

	return false;
}

static bool __maybe_unused
has_neoverse_n1_erratum_1542419(const struct arm64_cpu_capabilities *entry,
				int scope)
{
	bool has_dic = read_cpuid_cachetype() & BIT(CTR_EL0_DIC_SHIFT);
	const struct midr_range range = MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1);

	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
	return is_midr_in_range(&range) && has_dic;
}

static const struct midr_range apple_cpus[] = {
	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM_PRO),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM_PRO),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM_MAX),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM_MAX),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M2_BLIZZARD),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M2_AVALANCHE),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M2_BLIZZARD_PRO),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M2_AVALANCHE_PRO),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M2_BLIZZARD_MAX),
	MIDR_ALL_VERSIONS(MIDR_APPLE_M2_AVALANCHE_MAX),
	{},
};

static bool has_impdef_pmuv3(const struct arm64_cpu_capabilities *entry, int scope)
{
	u64 dfr0 = read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1);
	unsigned int pmuver;

	if (!is_kernel_in_hyp_mode())
		return false;

	pmuver = cpuid_feature_extract_unsigned_field(dfr0,
						      ID_AA64DFR0_EL1_PMUVer_SHIFT);
	if (pmuver != ID_AA64DFR0_EL1_PMUVer_IMP_DEF)
		return false;

	return is_midr_in_range_list(apple_cpus);
}

static bool has_broken_gic_v3_seis(const struct arm64_cpu_capabilities *entry, int scope)
{
	return (is_kernel_in_hyp_mode() &&
		is_midr_in_range_list(apple_cpus) &&
		(read_sysreg_s(SYS_ICH_VTR_EL2) & ICH_VTR_EL2_SEIS));
}

static void cpu_enable_impdef_pmuv3_traps(const struct arm64_cpu_capabilities *__unused)
{
	sysreg_clear_set_s(SYS_HACR_EL2, 0, BIT(56));
}

#ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI_SYNC
static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = {
#ifdef CONFIG_QCOM_FALKOR_ERRATUM_1009
	{
		ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0)
	},
	{
		.midr_range.model = MIDR_QCOM_KRYO,
		.matches = is_kryo_midr,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1286807
	{
		ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 0),
	},
	{
		/* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */
		ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2441007
	{
		ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2441009
	{
		/* Cortex-A510 r0p0 -> r1p1. Fixed in r1p2 */
		ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_4118414
	{
		ERRATA_MIDR_RANGE_LIST(((const struct midr_range[]) {
			MIDR_ALL_VERSIONS(MIDR_C1_PREMIUM),
			MIDR_ALL_VERSIONS(MIDR_C1_ULTRA),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A76AE),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78AE),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_X1C),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_X3),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_X4),
			MIDR_ALL_VERSIONS(MIDR_CORTEX_X925),
			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2),
			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3),
			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3AE),
			MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS),
			MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
			{}
		})),
	},
#endif
	{}
};
#endif

#ifdef CONFIG_ARM64_WORKAROUND_BROKEN_AMU_CONSTCNT
static const struct midr_range workaround_amu_constcnt_list[] = {
#ifdef CONFIG_ARM64_ERRATUM_2457168
	/* Cortex-A510 r0p0-r1p1 */
	MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1),
#endif
#ifdef CONFIG_ARM64_ERRATUM_3821522
	/* Cortex-A725 r0p0 - r0p2 */
	MIDR_RANGE(MIDR_CORTEX_A725, 0, 0, 0, 2),
#endif
	{}
};
#endif /* CONFIG_ARM64_WORKAROUND_BROKEN_AMU_CONSTCNT */

#ifdef CONFIG_CAVIUM_ERRATUM_23154
static const struct midr_range cavium_erratum_23154_cpus[] = {
	MIDR_ALL_VERSIONS(MIDR_THUNDERX),
	MIDR_ALL_VERSIONS(MIDR_THUNDERX_81XX),
	MIDR_ALL_VERSIONS(MIDR_THUNDERX_83XX),
	MIDR_ALL_VERSIONS(MIDR_OCTX2_98XX),
	MIDR_ALL_VERSIONS(MIDR_OCTX2_96XX),
	MIDR_ALL_VERSIONS(MIDR_OCTX2_95XX),
	MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXN),
	MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXMM),
	MIDR_ALL_VERSIONS(MIDR_OCTX2_95XXO),
	{},
};
#endif

#ifdef CONFIG_CAVIUM_ERRATUM_27456
static const struct midr_range cavium_erratum_27456_cpus[] = {
	/* Cavium ThunderX, T88 pass 1.x - 2.1 */
	MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 1),
	/* Cavium ThunderX, T81 pass 1.0 */
	MIDR_REV(MIDR_THUNDERX_81XX, 0, 0),
	{},
};
#endif

#ifdef CONFIG_CAVIUM_ERRATUM_30115
static const struct midr_range cavium_erratum_30115_cpus[] = {
	/* Cavium ThunderX, T88 pass 1.x - 2.2 */
	MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 2),
	/* Cavium ThunderX, T81 pass 1.0 - 1.2 */
	MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0, 0, 2),
	/* Cavium ThunderX, T83 pass 1.0 */
	MIDR_REV(MIDR_THUNDERX_83XX, 0, 0),
	{},
};
#endif

#ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
static const struct arm64_cpu_capabilities qcom_erratum_1003_list[] = {
	{
		ERRATA_MIDR_REV(MIDR_QCOM_FALKOR_V1, 0, 0),
	},
	{
		.midr_range.model = MIDR_QCOM_KRYO,
		.matches = is_kryo_midr,
	},
	{},
};
#endif

#ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
static const struct midr_range workaround_clean_cache[] = {
#if	defined(CONFIG_ARM64_ERRATUM_826319) || \
	defined(CONFIG_ARM64_ERRATUM_827319) || \
	defined(CONFIG_ARM64_ERRATUM_824069)
	/* Cortex-A53 r0p[012]: ARM errata 826319, 827319, 824069 */
	MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 2),
#endif
#ifdef	CONFIG_ARM64_ERRATUM_819472
	/* Cortex-A53 r0p[01] : ARM errata 819472 */
	MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 1),
#endif
	{},
};
#endif

#ifdef CONFIG_ARM64_ERRATUM_1418040
/*
 * - 1188873 affects r0p0 to r2p0
 * - 1418040 affects r0p0 to r3p1
 */
static const struct midr_range erratum_1418040_list[] = {
	/* Cortex-A76 r0p0 to r3p1 */
	MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
	/* Neoverse-N1 r0p0 to r3p1 */
	MIDR_RANGE(MIDR_NEOVERSE_N1, 0, 0, 3, 1),
	/* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
	MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
	{},
};
#endif

#ifdef CONFIG_ARM64_ERRATUM_845719
static const struct midr_range erratum_845719_list[] = {
	/* Cortex-A53 r0p[01234] */
	MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
	/* Brahma-B53 r0p[0] */
	MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
	/* Kryo2XX Silver rAp4 */
	MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
	{},
};
#endif

#ifdef CONFIG_ARM64_ERRATUM_843419
static const struct arm64_cpu_capabilities erratum_843419_list[] = {
	{
		/* Cortex-A53 r0p[01234] */
		.matches = is_affected_midr_range,
		ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
		MIDR_FIXED(0x4, BIT(8)),
	},
	{
		/* Brahma-B53 r0p[0] */
		.matches = is_affected_midr_range,
		ERRATA_MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
	},
	{},
};
#endif

#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
static const struct midr_range erratum_speculative_at_list[] = {
#ifdef CONFIG_ARM64_ERRATUM_1165522
	/* Cortex A76 r0p0 to r2p0 */
	MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
#endif
#ifdef CONFIG_ARM64_ERRATUM_1319367
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
#endif
#ifdef CONFIG_ARM64_ERRATUM_1530923
	/* Cortex A55 r0p0 to r2p0 */
	MIDR_RANGE(MIDR_CORTEX_A55, 0, 0, 2, 0),
	/* Kryo4xx Silver (rdpe => r1p0) */
	MIDR_REV(MIDR_QCOM_KRYO_4XX_SILVER, 0xd, 0xe),
#endif
	{},
};
#endif

#ifdef CONFIG_ARM64_ERRATUM_1463225
static const struct midr_range erratum_1463225[] = {
	/* Cortex-A76 r0p0 - r3p1 */
	MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
	/* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
	MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
	{},
};
#endif

#ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
static const struct midr_range trbe_overwrite_fill_mode_cpus[] = {
#ifdef CONFIG_ARM64_ERRATUM_2139208
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
	MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
#endif
#ifdef CONFIG_ARM64_ERRATUM_2119858
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
	MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
#endif
	{},
};
#endif	/* CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE */

#ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
static const struct midr_range tsb_flush_fail_cpus[] = {
#ifdef CONFIG_ARM64_ERRATUM_2067961
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
	MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
#endif
#ifdef CONFIG_ARM64_ERRATUM_2054223
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
#endif
	{},
};
#endif	/* CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE */

#ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
static struct midr_range trbe_write_out_of_range_cpus[] = {
#ifdef CONFIG_ARM64_ERRATUM_2253138
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
	MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
#endif
#ifdef CONFIG_ARM64_ERRATUM_2224489
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
	MIDR_RANGE(MIDR_CORTEX_X2, 0, 0, 2, 0),
#endif
	{},
};
#endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */

#ifdef CONFIG_ARM64_ERRATUM_1742098
static struct midr_range broken_aarch32_aes[] = {
	MIDR_RANGE(MIDR_CORTEX_A57, 0, 1, 0xf, 0xf),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
	{},
};
#endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */

#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
static const struct midr_range erratum_spec_unpriv_load_list[] = {
#ifdef CONFIG_ARM64_ERRATUM_3117295
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A510),
#endif
#ifdef CONFIG_ARM64_ERRATUM_2966298
	/* Cortex-A520 r0p0 to r0p1 */
	MIDR_REV_RANGE(MIDR_CORTEX_A520, 0, 0, 1),
#endif
	{},
};
#endif

#ifdef CONFIG_ARM64_ERRATUM_3194386
static const struct midr_range erratum_spec_ssbs_list[] = {
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A715),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A720),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A720AE),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_A725),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_X1C),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_X3),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_X4),
	MIDR_ALL_VERSIONS(MIDR_CORTEX_X925),
	MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3),
	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3AE),
	{}
};
#endif

#ifdef CONFIG_ARM64_ERRATUM_4193714
static bool has_sme_dvmsync_erratum(const struct arm64_cpu_capabilities *entry,
				    int scope)
{
	if (!id_aa64pfr1_sme(read_sanitised_ftr_reg(SYS_ID_AA64PFR1_EL1)))
		return false;

	return is_affected_midr_range(entry, scope);
}

static void cpu_enable_sme_dvmsync(const struct arm64_cpu_capabilities *__unused)
{
	if (this_cpu_has_cap(ARM64_WORKAROUND_4193714))
		sme_enable_dvmsync();
}
#endif

#ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38
static const struct midr_range erratum_ac03_cpu_38_list[] = {
	MIDR_ALL_VERSIONS(MIDR_AMPERE1),
	MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
	{},
};
#endif

#ifdef CONFIG_AMPERE_ERRATUM_AC04_CPU_23
static const struct midr_range erratum_ac04_cpu_23_list[] = {
	MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
	{},
};
#endif

#ifdef CONFIG_ARM64_WORKAROUND_DISABLE_CNP
static const struct midr_range cnp_erratum_cpus[] = {
#ifdef CONFIG_NVIDIA_CARMEL_CNP_ERRATUM
	MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
#endif
#ifdef CONFIG_HISILICON_ERRATUM_162100125
	MIDR_ALL_VERSIONS(MIDR_HISI_HIP09),
#endif
	{},
};
#endif

const struct arm64_cpu_capabilities arm64_errata[] = {
#ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
	{
		.desc = "ARM errata 826319, 827319, 824069, or 819472",
		.capability = ARM64_WORKAROUND_CLEAN_CACHE,
		ERRATA_MIDR_RANGE_LIST(workaround_clean_cache),
		.cpu_enable = cpu_enable_cache_maint_trap,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_832075
	{
	/* Cortex-A57 r0p0 - r1p2 */
		.desc = "ARM erratum 832075",
		.capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE,
		ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
				  0, 0,
				  1, 2),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_834220
	{
	/* Cortex-A57 r0p0 - r1p2 */
		.desc = "ARM erratum 834220",
		.capability = ARM64_WORKAROUND_834220,
		ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
				  0, 0,
				  1, 2),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_843419
	{
		.desc = "ARM erratum 843419",
		.capability = ARM64_WORKAROUND_843419,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = cpucap_multi_entry_cap_matches,
		.match_list = erratum_843419_list,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_845719
	{
		.desc = "ARM erratum 845719",
		.capability = ARM64_WORKAROUND_845719,
		ERRATA_MIDR_RANGE_LIST(erratum_845719_list),
	},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_23154
	{
		.desc = "Cavium errata 23154 and 38545",
		.capability = ARM64_WORKAROUND_CAVIUM_23154,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		ERRATA_MIDR_RANGE_LIST(cavium_erratum_23154_cpus),
	},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_27456
	{
		.desc = "Cavium erratum 27456",
		.capability = ARM64_WORKAROUND_CAVIUM_27456,
		ERRATA_MIDR_RANGE_LIST(cavium_erratum_27456_cpus),
	},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_30115
	{
		.desc = "Cavium erratum 30115",
		.capability = ARM64_WORKAROUND_CAVIUM_30115,
		ERRATA_MIDR_RANGE_LIST(cavium_erratum_30115_cpus),
	},
#endif
	{
		.desc = "Mismatched cache type (CTR_EL0)",
		.capability = ARM64_MISMATCHED_CACHE_TYPE,
		.matches = has_mismatched_cache_type,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.cpu_enable = cpu_enable_trap_ctr_access,
	},
#ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003
	{
		.desc = "Qualcomm Technologies Falkor/Kryo erratum 1003",
		.capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = cpucap_multi_entry_cap_matches,
		.match_list = qcom_erratum_1003_list,
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI_SYNC
	{
		.desc = "Broken broadcast TLBI completion",
		.capability = ARM64_WORKAROUND_REPEAT_TLBI_SYNC,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = cpucap_multi_entry_cap_matches,
		.match_list = arm64_repeat_tlbi_list,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_858921
	{
	/* Cortex-A73 all versions */
		.desc = "ARM erratum 858921",
		.capability = ARM64_WORKAROUND_858921,
		ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
	},
#endif
	{
		.desc = "Spectre-v2",
		.capability = ARM64_SPECTRE_V2,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_spectre_v2,
		.cpu_enable = spectre_v2_enable_mitigation,
	},
#ifdef CONFIG_RANDOMIZE_BASE
	{
	/* Must come after the Spectre-v2 entry */
		.desc = "Spectre-v3a",
		.capability = ARM64_SPECTRE_V3A,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_spectre_v3a,
		.cpu_enable = spectre_v3a_enable_mitigation,
	},
#endif
	{
		.desc = "Spectre-v4",
		.capability = ARM64_SPECTRE_V4,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_spectre_v4,
		.cpu_enable = spectre_v4_enable_mitigation,
	},
	{
		.desc = "Spectre-BHB",
		.capability = ARM64_SPECTRE_BHB,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = is_spectre_bhb_affected,
		.cpu_enable = spectre_bhb_enable_mitigation,
	},
#ifdef CONFIG_ARM64_ERRATUM_1418040
	{
		.desc = "ARM erratum 1418040",
		.capability = ARM64_WORKAROUND_1418040,
		ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
		/*
		 * We need to allow affected CPUs to come in late, but
		 * also need the non-affected CPUs to be able to come
		 * in at any point in time. Wonderful.
		 */
		.type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT
	{
		.desc = "ARM errata 1165522, 1319367, or 1530923",
		.capability = ARM64_WORKAROUND_SPECULATIVE_AT,
		ERRATA_MIDR_RANGE_LIST(erratum_speculative_at_list),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1463225
	{
		.desc = "ARM erratum 1463225",
		.capability = ARM64_WORKAROUND_1463225,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_cortex_a76_erratum_1463225,
		.midr_range_list = erratum_1463225,
	},
#endif
#ifdef CONFIG_CAVIUM_TX2_ERRATUM_219
	{
		.desc = "Cavium ThunderX2 erratum 219 (KVM guest sysreg trapping)",
		.capability = ARM64_WORKAROUND_CAVIUM_TX2_219_TVM,
		ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
		.matches = needs_tx2_tvm_workaround,
	},
	{
		.desc = "Cavium ThunderX2 erratum 219 (PRFM removal)",
		.capability = ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM,
		ERRATA_MIDR_RANGE_LIST(tx2_family_cpus),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1542419
	{
		/* we depend on the firmware portion for correctness */
		.desc = "ARM erratum 1542419 (kernel portion)",
		.capability = ARM64_WORKAROUND_1542419,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_neoverse_n1_erratum_1542419,
		.cpu_enable = cpu_enable_trap_ctr_access,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1508412
	{
		/* we depend on the firmware portion for correctness */
		.desc = "ARM erratum 1508412 (kernel portion)",
		.capability = ARM64_WORKAROUND_1508412,
		ERRATA_MIDR_RANGE(MIDR_CORTEX_A77,
				  0, 0,
				  1, 0),
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_DISABLE_CNP
	{
		.desc = "NVIDIA Carmel CNP erratum, or Hisilicon erratum 162100125",
		.capability = ARM64_WORKAROUND_DISABLE_CNP,
		ERRATA_MIDR_RANGE_LIST(cnp_erratum_cpus),
	},
#endif
#ifdef CONFIG_NVIDIA_OLYMPUS_1027_ERRATUM
	{
		/* NVIDIA Olympus core */
		.desc = "NVIDIA Olympus device store/load ordering erratum",
		.capability = ARM64_WORKAROUND_NVIDIA_OLYMPUS_1027,
		ERRATA_MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS),
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE
	{
		/*
		 * The erratum work around is handled within the TRBE
		 * driver and can be applied per-cpu. So, we can allow
		 * a late CPU to come online with this erratum.
		 */
		.desc = "ARM erratum 2119858 or 2139208",
		.capability = ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE,
		.type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
		CAP_MIDR_RANGE_LIST(trbe_overwrite_fill_mode_cpus),
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
	{
		.desc = "ARM erratum 2067961 or 2054223",
		.capability = ARM64_WORKAROUND_TSB_FLUSH_FAILURE,
		ERRATA_MIDR_RANGE_LIST(tsb_flush_fail_cpus),
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE
	{
		.desc = "ARM erratum 2253138 or 2224489",
		.capability = ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE,
		.type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
		CAP_MIDR_RANGE_LIST(trbe_write_out_of_range_cpus),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2645198
	{
		.desc = "ARM erratum 2645198",
		.capability = ARM64_WORKAROUND_2645198,
		ERRATA_MIDR_ALL_VERSIONS(MIDR_CORTEX_A715)
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2077057
	{
		.desc = "ARM erratum 2077057",
		.capability = ARM64_WORKAROUND_2077057,
		ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2064142
	{
		.desc = "ARM erratum 2064142",
		.capability = ARM64_WORKAROUND_2064142,

		/* Cortex-A510 r0p0 - r0p2 */
		ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_BROKEN_AMU_CONSTCNT
	{
		.desc = "Broken AMU AMEVCNTR01 (const counter)",
		.capability = ARM64_WORKAROUND_BROKEN_AMU_CONSTCNT,
		.type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE,
		CAP_MIDR_RANGE_LIST(workaround_amu_constcnt_list)
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2038923
	{
		.desc = "ARM erratum 2038923",
		.capability = ARM64_WORKAROUND_2038923,

		/* Cortex-A510 r0p0 - r0p2 */
		ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 2)
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1902691
	{
		.desc = "ARM erratum 1902691",
		.capability = ARM64_WORKAROUND_1902691,

		/* Cortex-A510 r0p0 - r0p1 */
		ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A510, 0, 0, 1)
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1742098
	{
		.desc = "ARM erratum 1742098",
		.capability = ARM64_WORKAROUND_1742098,
		CAP_MIDR_RANGE_LIST(broken_aarch32_aes),
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_2658417
	{
		.desc = "ARM erratum 2658417",
		.capability = ARM64_WORKAROUND_2658417,
		/* Cortex-A510 r0p0 - r1p1 */
		ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1),
		MIDR_FIXED(MIDR_CPU_VAR_REV(1,1), BIT(25)),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_3194386
	{
		.desc = "SSBS not fully self-synchronizing",
		.capability = ARM64_WORKAROUND_SPECULATIVE_SSBS,
		ERRATA_MIDR_RANGE_LIST(erratum_spec_ssbs_list),
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_4311569
	{
		.capability = ARM64_WORKAROUND_4311569,
		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
		.matches = need_arm_si_l1_workaround_4311569,
	},
#endif
#ifdef CONFIG_ARM64_ERRATUM_4193714
	{
		.desc = "C1-Pro SME DVMSync early acknowledgement",
		.capability = ARM64_WORKAROUND_4193714,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_sme_dvmsync_erratum,
		.cpu_enable = cpu_enable_sme_dvmsync,
		/* C1-Pro r0p0 - r1p2 (the latter only when REVIDR_EL1[0]==0) */
		.midr_range = MIDR_RANGE(MIDR_C1_PRO, 0, 0, 1, 2),
		MIDR_FIXED(MIDR_CPU_VAR_REV(1, 2), BIT(0)),
	},
#endif
#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
	{
		.desc = "ARM errata 2966298, 3117295",
		.capability = ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD,
		/* Cortex-A520 r0p0 - r0p1 */
		ERRATA_MIDR_RANGE_LIST(erratum_spec_unpriv_load_list),
	},
#endif
#ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38
	{
		.desc = "AmpereOne erratum AC03_CPU_38",
		.capability = ARM64_WORKAROUND_AMPERE_AC03_CPU_38,
		ERRATA_MIDR_RANGE_LIST(erratum_ac03_cpu_38_list),
	},
#endif
#ifdef CONFIG_AMPERE_ERRATUM_AC04_CPU_23
	{
		.desc = "AmpereOne erratum AC04_CPU_23",
		.capability = ARM64_WORKAROUND_AMPERE_AC04_CPU_23,
		ERRATA_MIDR_RANGE_LIST(erratum_ac04_cpu_23_list),
	},
#endif
	{
		.desc = "Broken CNTVOFF_EL2",
		.capability = ARM64_WORKAROUND_QCOM_ORYON_CNTVOFF,
		ERRATA_MIDR_RANGE_LIST(((const struct midr_range[]) {
					MIDR_ALL_VERSIONS(MIDR_QCOM_ORYON_X1),
					{}
				})),
	},
	{
		.desc = "Apple IMPDEF PMUv3 Traps",
		.capability = ARM64_WORKAROUND_PMUV3_IMPDEF_TRAPS,
		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
		.matches = has_impdef_pmuv3,
		.cpu_enable = cpu_enable_impdef_pmuv3_traps,
	},
	{
		.desc = "Known broken GICv3 SEIS implementation",
		.capability = ARM64_WORKAROUND_GICv3_BROKEN_SEIS,
		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
		.matches = has_broken_gic_v3_seis,
	},
	{
	}
};