diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 20 | ||||
| -rw-r--r-- | arch/arm64/include/asm/cputype.h | 9 | ||||
| -rw-r--r-- | arch/arm64/include/asm/pgtable-hwdef.h | 1 |
3 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 9c5c876a9ff2..c5308d01e228 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -27,6 +27,7 @@ #include <asm/asm-offsets.h> #include <asm/cpufeature.h> +#include <asm/cputype.h> #include <asm/debug-monitors.h> #include <asm/page.h> #include <asm/pgtable-hwdef.h> @@ -596,6 +597,25 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU #endif .endm +/* + * tcr_clear_errata_bits - Clear TCR bits that trigger an errata on this CPU. + */ + .macro tcr_clear_errata_bits, tcr, tmp1, tmp2 +#ifdef CONFIG_FUJITSU_ERRATUM_010001 + mrs \tmp1, midr_el1 + + mov_q \tmp2, MIDR_FUJITSU_ERRATUM_010001_MASK + and \tmp1, \tmp1, \tmp2 + mov_q \tmp2, MIDR_FUJITSU_ERRATUM_010001 + cmp \tmp1, \tmp2 + b.ne 10f + + mov_q \tmp2, TCR_CLEAR_FUJITSU_ERRATUM_010001 + bic \tcr, \tcr, \tmp2 +10: +#endif /* CONFIG_FUJITSU_ERRATUM_010001 */ + .endm + /** * Errata workaround prior to disable MMU. Insert an ISB immediately prior * to executing the MSR that will change SCTLR_ELn[M] from a value of 1 to 0. diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index 951ed1a4e5c9..2afb1338b48a 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -76,6 +76,7 @@ #define ARM_CPU_IMP_BRCM 0x42 #define ARM_CPU_IMP_QCOM 0x51 #define ARM_CPU_IMP_NVIDIA 0x4E +#define ARM_CPU_IMP_FUJITSU 0x46 #define ARM_CPU_PART_AEM_V8 0xD0F #define ARM_CPU_PART_FOUNDATION 0xD00 @@ -104,6 +105,8 @@ #define NVIDIA_CPU_PART_DENVER 0x003 #define NVIDIA_CPU_PART_CARMEL 0x004 +#define FUJITSU_CPU_PART_A64FX 0x001 + #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53) #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57) #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72) @@ -122,6 +125,12 @@ #define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO) #define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER) #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL) +#define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX) + +/* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */ +#define MIDR_FUJITSU_ERRATUM_010001 MIDR_FUJITSU_A64FX +#define MIDR_FUJITSU_ERRATUM_010001_MASK (~MIDR_VARIANT(1)) +#define TCR_CLEAR_FUJITSU_ERRATUM_010001 (TCR_NFD1 | TCR_NFD0) #ifndef __ASSEMBLY__ diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index e9b0a7d75184..a69259cc1f16 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -302,6 +302,7 @@ #define TCR_TBI1 (UL(1) << 38) #define TCR_HA (UL(1) << 39) #define TCR_HD (UL(1) << 40) +#define TCR_NFD0 (UL(1) << 53) #define TCR_NFD1 (UL(1) << 54) /* |