diff options
Diffstat (limited to 'src/arm/linux/aarch32-isa.c')
| -rw-r--r-- | src/arm/linux/aarch32-isa.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/src/arm/linux/aarch32-isa.c b/src/arm/linux/aarch32-isa.c index 41f9972..df68aa1 100644 --- a/src/arm/linux/aarch32-isa.c +++ b/src/arm/linux/aarch32-isa.c @@ -56,24 +56,37 @@ void cpuinfo_arm_linux_decode_isa_from_proc_cpuinfo( /* * NEON FP16 compute extension and VQRDMLAH/VQRDMLSH instructions are not indicated in /proc/cpuinfo. * Use a MIDR-based heuristic to whitelist processors known to support it: - * - Processors with Qualcomm-modified Cortex-A55 cores - * - Processors with Qualcomm-modified Cortex-A75 cores - * - Processors with Qualcomm-modified Cortex-A76 cores - * - Kirin 980 processor + * - Processors with Cortex-A55 cores + * - Processors with Cortex-A65 cores + * - Processors with Cortex-A75 cores + * - Processors with Cortex-A76 cores + * - Processors with Cortex-A77 cores + * - Processors with Exynos M4 cores + * - Processors with Exynos M5 cores + * - Neoverse N1 cores */ - switch (midr & (CPUINFO_ARM_MIDR_IMPLEMENTER_MASK | CPUINFO_ARM_MIDR_PART_MASK)) { - case UINT32_C(0x51008020): /* Kryo 385 Gold (Cortex-A75) */ - case UINT32_C(0x51008030): /* Kryo 385 Silver (Cortex-A55) */ - case UINT32_C(0x51008040): /* Kryo 485 Gold (Cortex-A76) */ - isa->fp16arith = true; - isa->rdm = true; - break; - default: - if (chipset->series == cpuinfo_arm_chipset_series_hisilicon_kirin && chipset->model == 980) { + if (chipset->series == cpuinfo_arm_chipset_series_samsung_exynos && chipset->model == 9810) { + /* Only little cores of Exynos 9810 support FP16 & RDM */ + cpuinfo_log_warning("FP16 arithmetics and RDM disabled: only little cores in Exynos 9810 support these extensions"); + } else { + switch (midr & (CPUINFO_ARM_MIDR_IMPLEMENTER_MASK | CPUINFO_ARM_MIDR_PART_MASK)) { + case UINT32_C(0x4100D050): /* Cortex-A55 */ + case UINT32_C(0x4100D060): /* Cortex-A65 */ + case UINT32_C(0x4100D0B0): /* Cortex-A76 */ + case UINT32_C(0x4100D0C0): /* Neoverse N1 */ + case UINT32_C(0x4100D0D0): /* Cortex-A77 */ + case UINT32_C(0x4100D0E0): /* Cortex-A76AE */ + case UINT32_C(0x4800D400): /* Cortex-A76 (HiSilicon) */ + case UINT32_C(0x51008020): /* Kryo 385 Gold (Cortex-A75) */ + case UINT32_C(0x51008030): /* Kryo 385 Silver (Cortex-A55) */ + case UINT32_C(0x51008040): /* Kryo 485 Gold (Cortex-A76) */ + case UINT32_C(0x51008050): /* Kryo 485 Silver (Cortex-A55) */ + case UINT32_C(0x53000030): /* Exynos M4 */ + case UINT32_C(0x53000040): /* Exynos M5 */ isa->fp16arith = true; isa->rdm = true; - } - break; + break; + } } /* |