385 lines
16 KiB
C
385 lines
16 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <cpuinfo.h>
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#include <cpuinfo/common.h>
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#include <arm/midr.h>
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#include <arm/api.h>
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#include <linux/api.h>
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/* No hard limit in the kernel, maximum length observed on non-rogue kernels is 64 */
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#define CPUINFO_HARDWARE_VALUE_MAX 64
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/* No hard limit in the kernel, maximum length on Raspberry Pi is 8. Add 1 symbol to detect overly large revision strings */
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#define CPUINFO_REVISION_VALUE_MAX 9
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#ifdef __ANDROID__
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/* As per include/sys/system_properties.h in Android NDK */
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#define CPUINFO_BUILD_PROP_NAME_MAX 32
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#define CPUINFO_BUILD_PROP_VALUE_MAX 92
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struct cpuinfo_android_properties {
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char proc_cpuinfo_hardware[CPUINFO_HARDWARE_VALUE_MAX];
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char ro_product_board[CPUINFO_BUILD_PROP_VALUE_MAX];
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char ro_board_platform[CPUINFO_BUILD_PROP_VALUE_MAX];
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char ro_mediatek_platform[CPUINFO_BUILD_PROP_VALUE_MAX];
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char ro_arch[CPUINFO_BUILD_PROP_VALUE_MAX];
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char ro_chipname[CPUINFO_BUILD_PROP_VALUE_MAX];
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char ro_hardware_chipname[CPUINFO_BUILD_PROP_VALUE_MAX];
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};
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#endif
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#define CPUINFO_ARM_LINUX_ARCH_T UINT32_C(0x00000001)
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#define CPUINFO_ARM_LINUX_ARCH_E UINT32_C(0x00000002)
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#define CPUINFO_ARM_LINUX_ARCH_J UINT32_C(0x00000004)
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#define CPUINFO_ARM_LINUX_ARCH_TE UINT32_C(0x00000003)
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#define CPUINFO_ARM_LINUX_ARCH_TEJ UINT32_C(0x00000007)
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struct cpuinfo_arm_linux_proc_cpuinfo_cache {
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uint32_t i_size;
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uint32_t i_assoc;
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uint32_t i_line_length;
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uint32_t i_sets;
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uint32_t d_size;
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uint32_t d_assoc;
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uint32_t d_line_length;
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uint32_t d_sets;
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};
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#if CPUINFO_ARCH_ARM
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/* arch/arm/include/uapi/asm/hwcap.h */
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#define CPUINFO_ARM_LINUX_FEATURE_SWP UINT32_C(0x00000001)
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#define CPUINFO_ARM_LINUX_FEATURE_HALF UINT32_C(0x00000002)
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#define CPUINFO_ARM_LINUX_FEATURE_THUMB UINT32_C(0x00000004)
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#define CPUINFO_ARM_LINUX_FEATURE_26BIT UINT32_C(0x00000008)
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#define CPUINFO_ARM_LINUX_FEATURE_FASTMULT UINT32_C(0x00000010)
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#define CPUINFO_ARM_LINUX_FEATURE_FPA UINT32_C(0x00000020)
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#define CPUINFO_ARM_LINUX_FEATURE_VFP UINT32_C(0x00000040)
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#define CPUINFO_ARM_LINUX_FEATURE_EDSP UINT32_C(0x00000080)
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#define CPUINFO_ARM_LINUX_FEATURE_JAVA UINT32_C(0x00000100)
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#define CPUINFO_ARM_LINUX_FEATURE_IWMMXT UINT32_C(0x00000200)
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#define CPUINFO_ARM_LINUX_FEATURE_CRUNCH UINT32_C(0x00000400)
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#define CPUINFO_ARM_LINUX_FEATURE_THUMBEE UINT32_C(0x00000800)
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#define CPUINFO_ARM_LINUX_FEATURE_NEON UINT32_C(0x00001000)
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#define CPUINFO_ARM_LINUX_FEATURE_VFPV3 UINT32_C(0x00002000)
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#define CPUINFO_ARM_LINUX_FEATURE_VFPV3D16 UINT32_C(0x00004000) /* Also set for VFPv4 with 16 double-precision registers */
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#define CPUINFO_ARM_LINUX_FEATURE_TLS UINT32_C(0x00008000)
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#define CPUINFO_ARM_LINUX_FEATURE_VFPV4 UINT32_C(0x00010000)
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#define CPUINFO_ARM_LINUX_FEATURE_IDIVA UINT32_C(0x00020000)
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#define CPUINFO_ARM_LINUX_FEATURE_IDIVT UINT32_C(0x00040000)
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#define CPUINFO_ARM_LINUX_FEATURE_IDIV UINT32_C(0x00060000)
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#define CPUINFO_ARM_LINUX_FEATURE_VFPD32 UINT32_C(0x00080000)
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#define CPUINFO_ARM_LINUX_FEATURE_LPAE UINT32_C(0x00100000)
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#define CPUINFO_ARM_LINUX_FEATURE_EVTSTRM UINT32_C(0x00200000)
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#define CPUINFO_ARM_LINUX_FEATURE2_AES UINT32_C(0x00000001)
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#define CPUINFO_ARM_LINUX_FEATURE2_PMULL UINT32_C(0x00000002)
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#define CPUINFO_ARM_LINUX_FEATURE2_SHA1 UINT32_C(0x00000004)
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#define CPUINFO_ARM_LINUX_FEATURE2_SHA2 UINT32_C(0x00000008)
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#define CPUINFO_ARM_LINUX_FEATURE2_CRC32 UINT32_C(0x00000010)
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#elif CPUINFO_ARCH_ARM64
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/* arch/arm64/include/uapi/asm/hwcap.h */
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#define CPUINFO_ARM_LINUX_FEATURE_FP UINT32_C(0x00000001)
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#define CPUINFO_ARM_LINUX_FEATURE_ASIMD UINT32_C(0x00000002)
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#define CPUINFO_ARM_LINUX_FEATURE_EVTSTRM UINT32_C(0x00000004)
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#define CPUINFO_ARM_LINUX_FEATURE_AES UINT32_C(0x00000008)
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#define CPUINFO_ARM_LINUX_FEATURE_PMULL UINT32_C(0x00000010)
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#define CPUINFO_ARM_LINUX_FEATURE_SHA1 UINT32_C(0x00000020)
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#define CPUINFO_ARM_LINUX_FEATURE_SHA2 UINT32_C(0x00000040)
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#define CPUINFO_ARM_LINUX_FEATURE_CRC32 UINT32_C(0x00000080)
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#define CPUINFO_ARM_LINUX_FEATURE_ATOMICS UINT32_C(0x00000100)
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#define CPUINFO_ARM_LINUX_FEATURE_FPHP UINT32_C(0x00000200)
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#define CPUINFO_ARM_LINUX_FEATURE_ASIMDHP UINT32_C(0x00000400)
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#define CPUINFO_ARM_LINUX_FEATURE_CPUID UINT32_C(0x00000800)
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#define CPUINFO_ARM_LINUX_FEATURE_ASIMDRDM UINT32_C(0x00001000)
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#define CPUINFO_ARM_LINUX_FEATURE_JSCVT UINT32_C(0x00002000)
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#define CPUINFO_ARM_LINUX_FEATURE_FCMA UINT32_C(0x00004000)
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#define CPUINFO_ARM_LINUX_FEATURE_LRCPC UINT32_C(0x00008000)
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#define CPUINFO_ARM_LINUX_FEATURE_DCPOP UINT32_C(0x00010000)
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#define CPUINFO_ARM_LINUX_FEATURE_SHA3 UINT32_C(0x00020000)
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#define CPUINFO_ARM_LINUX_FEATURE_SM3 UINT32_C(0x00040000)
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#define CPUINFO_ARM_LINUX_FEATURE_SM4 UINT32_C(0x00080000)
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#define CPUINFO_ARM_LINUX_FEATURE_ASIMDDP UINT32_C(0x00100000)
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#define CPUINFO_ARM_LINUX_FEATURE_SHA512 UINT32_C(0x00200000)
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#define CPUINFO_ARM_LINUX_FEATURE_SVE UINT32_C(0x00400000)
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#define CPUINFO_ARM_LINUX_FEATURE_ASIMDFHM UINT32_C(0x00800000)
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#define CPUINFO_ARM_LINUX_FEATURE_DIT UINT32_C(0x01000000)
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#define CPUINFO_ARM_LINUX_FEATURE_USCAT UINT32_C(0x02000000)
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#define CPUINFO_ARM_LINUX_FEATURE_ILRCPC UINT32_C(0x04000000)
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#define CPUINFO_ARM_LINUX_FEATURE_FLAGM UINT32_C(0x08000000)
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#define CPUINFO_ARM_LINUX_FEATURE_SSBS UINT32_C(0x10000000)
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#define CPUINFO_ARM_LINUX_FEATURE_SB UINT32_C(0x20000000)
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#define CPUINFO_ARM_LINUX_FEATURE_PACA UINT32_C(0x40000000)
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#define CPUINFO_ARM_LINUX_FEATURE_PACG UINT32_C(0x80000000)
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#define CPUINFO_ARM_LINUX_FEATURE2_DCPODP UINT32_C(0x00000001)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVE2 UINT32_C(0x00000002)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEAES UINT32_C(0x00000004)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEPMULL UINT32_C(0x00000008)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEBITPERM UINT32_C(0x00000010)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVESHA3 UINT32_C(0x00000020)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVESM4 UINT32_C(0x00000040)
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#define CPUINFO_ARM_LINUX_FEATURE2_FLAGM2 UINT32_C(0x00000080)
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#define CPUINFO_ARM_LINUX_FEATURE2_FRINT UINT32_C(0x00000100)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEI8MM UINT32_C(0x00000200)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEF32MM UINT32_C(0x00000400)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEF64MM UINT32_C(0x00000800)
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#define CPUINFO_ARM_LINUX_FEATURE2_SVEBF16 UINT32_C(0x00001000)
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#define CPUINFO_ARM_LINUX_FEATURE2_I8MM UINT32_C(0x00002000)
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#define CPUINFO_ARM_LINUX_FEATURE2_BF16 UINT32_C(0x00004000)
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#define CPUINFO_ARM_LINUX_FEATURE2_DGH UINT32_C(0x00008000)
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#define CPUINFO_ARM_LINUX_FEATURE2_RNG UINT32_C(0x00010000)
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#define CPUINFO_ARM_LINUX_FEATURE2_BTI UINT32_C(0x00020000)
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#endif
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#define CPUINFO_ARM_LINUX_VALID_ARCHITECTURE UINT32_C(0x00010000)
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#define CPUINFO_ARM_LINUX_VALID_IMPLEMENTER UINT32_C(0x00020000)
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#define CPUINFO_ARM_LINUX_VALID_VARIANT UINT32_C(0x00040000)
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#define CPUINFO_ARM_LINUX_VALID_PART UINT32_C(0x00080000)
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#define CPUINFO_ARM_LINUX_VALID_REVISION UINT32_C(0x00100000)
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#define CPUINFO_ARM_LINUX_VALID_PROCESSOR UINT32_C(0x00200000)
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#define CPUINFO_ARM_LINUX_VALID_FEATURES UINT32_C(0x00400000)
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#if CPUINFO_ARCH_ARM
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#define CPUINFO_ARM_LINUX_VALID_ICACHE_SIZE UINT32_C(0x01000000)
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#define CPUINFO_ARM_LINUX_VALID_ICACHE_SETS UINT32_C(0x02000000)
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#define CPUINFO_ARM_LINUX_VALID_ICACHE_WAYS UINT32_C(0x04000000)
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#define CPUINFO_ARM_LINUX_VALID_ICACHE_LINE UINT32_C(0x08000000)
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#define CPUINFO_ARM_LINUX_VALID_DCACHE_SIZE UINT32_C(0x10000000)
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#define CPUINFO_ARM_LINUX_VALID_DCACHE_SETS UINT32_C(0x20000000)
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#define CPUINFO_ARM_LINUX_VALID_DCACHE_WAYS UINT32_C(0x40000000)
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#define CPUINFO_ARM_LINUX_VALID_DCACHE_LINE UINT32_C(0x80000000)
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#endif
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#define CPUINFO_ARM_LINUX_VALID_INFO UINT32_C(0x007F0000)
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#define CPUINFO_ARM_LINUX_VALID_MIDR UINT32_C(0x003F0000)
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#if CPUINFO_ARCH_ARM
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#define CPUINFO_ARM_LINUX_VALID_ICACHE UINT32_C(0x0F000000)
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#define CPUINFO_ARM_LINUX_VALID_DCACHE UINT32_C(0xF0000000)
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#define CPUINFO_ARM_LINUX_VALID_CACHE_LINE UINT32_C(0x88000000)
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#endif
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struct cpuinfo_arm_linux_processor {
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uint32_t architecture_version;
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#if CPUINFO_ARCH_ARM
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uint32_t architecture_flags;
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struct cpuinfo_arm_linux_proc_cpuinfo_cache proc_cpuinfo_cache;
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#endif
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uint32_t features;
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uint32_t features2;
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/**
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* Main ID Register value.
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*/
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uint32_t midr;
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enum cpuinfo_vendor vendor;
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enum cpuinfo_uarch uarch;
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uint32_t uarch_index;
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/**
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* ID of the physical package which includes this logical processor.
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* The value is parsed from /sys/devices/system/cpu/cpu<N>/topology/physical_package_id
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*/
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uint32_t package_id;
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/**
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* Minimum processor ID on the package which includes this logical processor.
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* This value can serve as an ID for the cluster of logical processors: it is the
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* same for all logical processors on the same package.
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*/
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uint32_t package_leader_id;
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/**
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* Number of logical processors in the package.
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*/
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uint32_t package_processor_count;
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/**
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* Maximum frequency, in kHZ.
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* The value is parsed from /sys/devices/system/cpu/cpu<N>/cpufreq/cpuinfo_max_freq
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* If failed to read or parse the file, the value is 0.
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*/
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uint32_t max_frequency;
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/**
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* Minimum frequency, in kHZ.
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* The value is parsed from /sys/devices/system/cpu/cpu<N>/cpufreq/cpuinfo_min_freq
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* If failed to read or parse the file, the value is 0.
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*/
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uint32_t min_frequency;
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/** Linux processor ID */
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uint32_t system_processor_id;
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uint32_t flags;
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};
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struct cpuinfo_arm_linux_cluster {
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uint32_t processor_id_min;
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uint32_t processor_id_max;
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};
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/* Returns true if the two processors do belong to the same cluster */
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static inline bool cpuinfo_arm_linux_processor_equals(
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struct cpuinfo_arm_linux_processor processor_i[restrict static 1],
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struct cpuinfo_arm_linux_processor processor_j[restrict static 1])
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{
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const uint32_t joint_flags = processor_i->flags & processor_j->flags;
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bool same_max_frequency = false;
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if (joint_flags & CPUINFO_LINUX_FLAG_MAX_FREQUENCY) {
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if (processor_i->max_frequency != processor_j->max_frequency) {
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return false;
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} else {
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same_max_frequency = true;
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}
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}
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bool same_min_frequency = false;
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if (joint_flags & CPUINFO_LINUX_FLAG_MIN_FREQUENCY) {
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if (processor_i->min_frequency != processor_j->min_frequency) {
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return false;
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} else {
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same_min_frequency = true;
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}
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}
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if ((joint_flags & CPUINFO_ARM_LINUX_VALID_MIDR) == CPUINFO_ARM_LINUX_VALID_MIDR) {
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if (processor_i->midr == processor_j->midr) {
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if (midr_is_cortex_a53(processor_i->midr)) {
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return same_min_frequency & same_max_frequency;
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} else {
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return true;
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}
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}
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}
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return same_max_frequency && same_min_frequency;
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}
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/* Returns true if the two processors certainly don't belong to the same cluster */
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static inline bool cpuinfo_arm_linux_processor_not_equals(
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struct cpuinfo_arm_linux_processor processor_i[restrict static 1],
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struct cpuinfo_arm_linux_processor processor_j[restrict static 1])
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{
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const uint32_t joint_flags = processor_i->flags & processor_j->flags;
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if (joint_flags & CPUINFO_LINUX_FLAG_MAX_FREQUENCY) {
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if (processor_i->max_frequency != processor_j->max_frequency) {
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return true;
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}
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}
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if (joint_flags & CPUINFO_LINUX_FLAG_MIN_FREQUENCY) {
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if (processor_i->min_frequency != processor_j->min_frequency) {
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return true;
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}
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}
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if ((joint_flags & CPUINFO_ARM_LINUX_VALID_MIDR) == CPUINFO_ARM_LINUX_VALID_MIDR) {
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if (processor_i->midr != processor_j->midr) {
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return true;
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}
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}
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return false;
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}
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CPUINFO_INTERNAL bool cpuinfo_arm_linux_parse_proc_cpuinfo(
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char hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX],
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char revision[restrict static CPUINFO_REVISION_VALUE_MAX],
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uint32_t max_processors_count,
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struct cpuinfo_arm_linux_processor processors[restrict static max_processors_count]);
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#if CPUINFO_ARCH_ARM
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CPUINFO_INTERNAL bool cpuinfo_arm_linux_hwcap_from_getauxval(
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uint32_t hwcap[restrict static 1],
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uint32_t hwcap2[restrict static 1]);
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CPUINFO_INTERNAL bool cpuinfo_arm_linux_hwcap_from_procfs(
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uint32_t hwcap[restrict static 1],
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uint32_t hwcap2[restrict static 1]);
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CPUINFO_INTERNAL void cpuinfo_arm_linux_decode_isa_from_proc_cpuinfo(
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uint32_t features,
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uint32_t features2,
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uint32_t midr,
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uint32_t architecture_version,
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uint32_t architecture_flags,
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const struct cpuinfo_arm_chipset chipset[restrict static 1],
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struct cpuinfo_arm_isa isa[restrict static 1]);
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#elif CPUINFO_ARCH_ARM64
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CPUINFO_INTERNAL void cpuinfo_arm_linux_hwcap_from_getauxval(
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uint32_t hwcap[restrict static 1],
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uint32_t hwcap2[restrict static 1]);
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CPUINFO_INTERNAL void cpuinfo_arm64_linux_decode_isa_from_proc_cpuinfo(
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uint32_t features,
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uint32_t features2,
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uint32_t midr,
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const struct cpuinfo_arm_chipset chipset[restrict static 1],
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struct cpuinfo_arm_isa isa[restrict static 1]);
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#endif
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#ifdef __ANDROID__
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset(
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const struct cpuinfo_android_properties properties[restrict static 1],
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uint32_t cores,
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uint32_t max_cpu_freq_max);
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#else
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_linux_decode_chipset(
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const char hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX],
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const char revision[restrict static CPUINFO_REVISION_VALUE_MAX],
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uint32_t cores,
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uint32_t max_cpu_freq_max);
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#endif
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_linux_decode_chipset_from_proc_cpuinfo_hardware(
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const char proc_cpuinfo_hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX],
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uint32_t cores, uint32_t max_cpu_freq_max, bool is_tegra);
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#ifdef __ANDROID__
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset_from_ro_product_board(
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const char ro_product_board[restrict static CPUINFO_BUILD_PROP_VALUE_MAX],
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uint32_t cores, uint32_t max_cpu_freq_max);
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset_from_ro_board_platform(
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const char ro_board_platform[restrict static CPUINFO_BUILD_PROP_VALUE_MAX],
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uint32_t cores, uint32_t max_cpu_freq_max);
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset_from_ro_mediatek_platform(
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const char ro_mediatek_platform[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]);
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset_from_ro_arch(
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const char ro_arch[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]);
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset_from_ro_chipname(
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const char ro_chipname[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]);
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_android_decode_chipset_from_ro_hardware_chipname(
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const char ro_hardware_chipname[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]);
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#else
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CPUINFO_INTERNAL struct cpuinfo_arm_chipset
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cpuinfo_arm_linux_decode_chipset_from_proc_cpuinfo_revision(
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const char proc_cpuinfo_revision[restrict static CPUINFO_REVISION_VALUE_MAX]);
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#endif
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CPUINFO_INTERNAL bool cpuinfo_arm_linux_detect_core_clusters_by_heuristic(
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uint32_t usable_processors,
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uint32_t max_processors,
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struct cpuinfo_arm_linux_processor processors[restrict static max_processors]);
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CPUINFO_INTERNAL void cpuinfo_arm_linux_detect_core_clusters_by_sequential_scan(
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uint32_t max_processors,
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struct cpuinfo_arm_linux_processor processors[restrict static max_processors]);
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CPUINFO_INTERNAL void cpuinfo_arm_linux_count_cluster_processors(
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uint32_t max_processors,
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struct cpuinfo_arm_linux_processor processors[restrict static max_processors]);
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CPUINFO_INTERNAL uint32_t cpuinfo_arm_linux_detect_cluster_midr(
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const struct cpuinfo_arm_chipset chipset[restrict static 1],
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uint32_t max_processors,
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uint32_t usable_processors,
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struct cpuinfo_arm_linux_processor processors[restrict static max_processors]);
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extern CPUINFO_INTERNAL const uint32_t* cpuinfo_linux_cpu_to_uarch_index_map;
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extern CPUINFO_INTERNAL uint32_t cpuinfo_linux_cpu_to_uarch_index_map_entries;
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