Commit b9585f53 authored by Andrew Murray's avatar Andrew Murray Committed by Will Deacon

arm64: Advertise ARM64_HAS_DCPODP cpu feature

Advertise ARM64_HAS_DCPODP when both DC CVAP and DC CVADP are supported.

Even though we don't use this feature now, we provide it for consistency
with DCPOP and anticipate it being used in the future.
Signed-off-by: default avatarAndrew Murray <andrew.murray@arm.com>
Reviewed-by: default avatarDave Martin <Dave.Martin@arm.com>
Reviewed-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 04a1438e
...@@ -61,7 +61,8 @@ ...@@ -61,7 +61,8 @@
#define ARM64_HAS_GENERIC_AUTH_ARCH 40 #define ARM64_HAS_GENERIC_AUTH_ARCH 40
#define ARM64_HAS_GENERIC_AUTH_IMP_DEF 41 #define ARM64_HAS_GENERIC_AUTH_IMP_DEF 41
#define ARM64_HAS_IRQ_PRIO_MASKING 42 #define ARM64_HAS_IRQ_PRIO_MASKING 42
#define ARM64_HAS_DCPODP 43
#define ARM64_NCAPS 43 #define ARM64_NCAPS 44
#endif /* __ASM_CPUCAPS_H */ #endif /* __ASM_CPUCAPS_H */
...@@ -1340,6 +1340,16 @@ static const struct arm64_cpu_capabilities arm64_features[] = { ...@@ -1340,6 +1340,16 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.field_pos = ID_AA64ISAR1_DPB_SHIFT, .field_pos = ID_AA64ISAR1_DPB_SHIFT,
.min_field_value = 1, .min_field_value = 1,
}, },
{
.desc = "Data cache clean to Point of Deep Persistence",
.capability = ARM64_HAS_DCPODP,
.type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
.sys_reg = SYS_ID_AA64ISAR1_EL1,
.sign = FTR_UNSIGNED,
.field_pos = ID_AA64ISAR1_DPB_SHIFT,
.min_field_value = 2,
},
#endif #endif
#ifdef CONFIG_ARM64_SVE #ifdef CONFIG_ARM64_SVE
{ {
......
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