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linux/arch/arm64/kernel/cpu_errata.c
Suzuki K Poulose 8d81b2a38d arm64: errata: Add detection for TRBE write to out-of-range 
Arm Neoverse-N2 and Cortex-A710 cores are affected by an erratum where
the trbe, under some circumstances, might write upto 64bytes to an
address after the Limit as programmed by the TRBLIMITR_EL1.LIMIT.
This might -
  - Corrupt a page in the ring buffer, which may corrupt trace from a
    previous session, consumed by userspace.
  - Hit the guard page at the end of the vmalloc area and raise a fault.

To keep the handling simpler, we always leave the last page from the
range, which TRBE is allowed to write. This can be achieved by ensuring
that we always have more than a PAGE worth space in the range, while
calculating the LIMIT for TRBE. And then the LIMIT pointer can be
adjusted to leave the PAGE (TRBLIMITR.LIMIT -= PAGE_SIZE), out of the
TRBE range while enabling it. This makes sure that the TRBE will only
write to an area within its allowed limit (i.e, [head-head+size]) and
we do not have to handle address faults within the driver.

Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211019163153.3692640-5-suzuki.poulose@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2021-10-21 17:49:17 +01:00

604 lines
16 KiB
C
Raw Blame History

// 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/kvm_asm.h>
#include <asm/smp_plat.h>
static bool __maybe_unused
is_affected_midr_range(const struct arm64_cpu_capabilities *entry, int scope)
{
const struct arm64_midr_revidr *fix;
u32 midr = read_cpuid_id(), revidr;
WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
if (!is_midr_in_range(midr, &entry->midr_range))
return false;
midr &= MIDR_REVISION_MASK | MIDR_VARIANT_MASK;
revidr = read_cpuid(REVIDR_EL1);
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_list(const struct arm64_cpu_capabilities *entry,
int scope)
{
WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
return is_midr_in_range_list(read_cpuid_id(), 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);
}
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)
{
u32 midr = read_cpuid_id();
bool has_dic = read_cpuid_cachetype() & BIT(CTR_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(midr, &range) && has_dic;
}
#ifdef CONFIG_ARM64_WORKAROUND_REPEAT_TLBI
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),
},
#endif
{},
};
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_27456
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),
#endif
#ifdef CONFIG_ARM64_ERRATUM_2119858
MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
#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),
#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),
#endif
#ifdef CONFIG_ARM64_ERRATUM_2224489
MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
#endif
{},
};
#endif /* CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE */
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
{
/* Cavium ThunderX, pass 1.x */
.desc = "Cavium erratum 23154",
.capability = ARM64_WORKAROUND_CAVIUM_23154,
ERRATA_MIDR_REV_RANGE(MIDR_THUNDERX, 0, 0, 1),
},
#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
{
.desc = "Qualcomm erratum 1009, or ARM erratum 1286807",
.capability = ARM64_WORKAROUND_REPEAT_TLBI,
.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,
},
#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_NVIDIA_CARMEL_CNP_ERRATUM
{
/* NVIDIA Carmel */
.desc = "NVIDIA Carmel CNP erratum",
.capability = ARM64_WORKAROUND_NVIDIA_CARMEL_CNP,
ERRATA_MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL),
},
#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
{
}
};
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