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Commit 982ee5e2 authored by Srinivas Ramana's avatar Srinivas Ramana Committed by Maria Yu
Browse files

arch: arm64: Add midr values for kryo2xx big cores 



Add midr value for kryo2xx big cores to apply errata workarounds for
branch prediction hardening.

Change-Id: I7ca9cfa3e6b48d5af78a5297cb76ebe6f52e519e
Signed-off-by: default avatarSrinivas Ramana <sramana@codeaurora.org>
parent 763935cc

arch/arm64/include/asm/cputype.h

+2 −0
Original line number Diff line number Diff line
@@ -105,6 +105,8 @@ 
#define MIDR_CORTEX_A55 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A55)

#define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)

#define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)

#define MIDR_KRYO2XX_GOLD \

	MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, ARM_CPU_PART_KRYO2XX_GOLD)



#ifndef __ASSEMBLY__

arch/arm64/kernel/cpu_errata.c

+5 −0
Original line number Diff line number Diff line
@@ -260,6 +260,11 @@ const struct arm64_cpu_capabilities arm64_errata[] = { 
		MIDR_ALL_VERSIONS(MIDR_KRYO3G),

		.enable = enable_psci_bp_hardening,

	},

	{

		.capability = ARM64_HARDEN_BRANCH_PREDICTOR,

		MIDR_ALL_VERSIONS(MIDR_KRYO2XX_GOLD),

		.enable = enable_psci_bp_hardening,

	},

#endif

	{

	}