#include #include #include #include #include #include "helpers/helpers.h" static const char *cpu_vendor_table[X86_VENDOR_MAX] = { "Unknown", "GenuineIntel", "AuthenticAMD", }; #if defined(__i386__) || defined(__x86_64__) /* from gcc */ #include /* * CPUID functions returning a single datum * * Define unsigned int cpuid_e[abcd]x(unsigned int op) */ #define cpuid_func(reg) \ unsigned int cpuid_##reg(unsigned int op) \ { \ unsigned int eax, ebx, ecx, edx; \ __cpuid(op, eax, ebx, ecx, edx); \ return reg; \ } cpuid_func(eax); cpuid_func(ebx); cpuid_func(ecx); cpuid_func(edx); #endif /* defined(__i386__) || defined(__x86_64__) */ /* get_cpu_info * * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo * * Returns 0 on success or a negativ error code * * TBD: Should there be a cpuid alternative for this if /proc is not mounted? */ int get_cpu_info(unsigned int cpu, struct cpupower_cpu_info *cpu_info) { FILE *fp; char value[64]; unsigned int proc, x; unsigned int unknown = 0xffffff; unsigned int cpuid_level, ext_cpuid_level; int ret = -EINVAL; cpu_info->vendor = X86_VENDOR_UNKNOWN; cpu_info->family = unknown; cpu_info->model = unknown; cpu_info->stepping = unknown; cpu_info->caps = 0; fp = fopen("/proc/cpuinfo", "r"); if (!fp) return -EIO; while (!feof(fp)) { if (!fgets(value, 64, fp)) continue; value[63 - 1] = '\0'; if (!strncmp(value, "processor\t: ", 12)) sscanf(value, "processor\t: %u", &proc); if (proc != cpu) continue; /* Get CPU vendor */ if (!strncmp(value, "vendor_id", 9)) { for (x = 1; x < X86_VENDOR_MAX; x++) { if (strstr(value, cpu_vendor_table[x])) cpu_info->vendor = x; } /* Get CPU family, etc. */ } else if (!strncmp(value, "cpu family\t: ", 13)) { sscanf(value, "cpu family\t: %u", &cpu_info->family); } else if (!strncmp(value, "model\t\t: ", 9)) { sscanf(value, "model\t\t: %u", &cpu_info->model); } else if (!strncmp(value, "stepping\t: ", 10)) { sscanf(value, "stepping\t: %u", &cpu_info->stepping); /* Exit -> all values must have been set */ if (cpu_info->vendor == X86_VENDOR_UNKNOWN || cpu_info->family == unknown || cpu_info->model == unknown || cpu_info->stepping == unknown) { ret = -EINVAL; goto out; } ret = 0; goto out; } } ret = -ENODEV; out: fclose(fp); /* Get some useful CPU capabilities from cpuid */ if (cpu_info->vendor != X86_VENDOR_AMD && cpu_info->vendor != X86_VENDOR_INTEL) return ret; cpuid_level = cpuid_eax(0); ext_cpuid_level = cpuid_eax(0x80000000); /* Invariant TSC */ if (ext_cpuid_level >= 0x80000007 && (cpuid_edx(0x80000007) & (1 << 8))) cpu_info->caps |= CPUPOWER_CAP_INV_TSC; /* Aperf/Mperf registers support */ if (cpuid_level >= 6 && (cpuid_ecx(6) & 0x1)) cpu_info->caps |= CPUPOWER_CAP_APERF; /* AMD Boost state enable/disable register */ if (cpu_info->vendor == X86_VENDOR_AMD) { if (ext_cpuid_level >= 0x80000007 && (cpuid_edx(0x80000007) & (1 << 9))) cpu_info->caps |= CPUPOWER_CAP_AMD_CBP; } if (cpu_info->vendor == X86_VENDOR_INTEL) { if (cpuid_level >= 6 && (cpuid_eax(6) & (1 << 1))) cpu_info->caps |= CPUPOWER_CAP_INTEL_IDA; } if (cpu_info->vendor == X86_VENDOR_INTEL) { /* Intel's perf-bias MSR support */ if (cpuid_level >= 6 && (cpuid_ecx(6) & (1 << 3))) cpu_info->caps |= CPUPOWER_CAP_PERF_BIAS; /* Intel's Turbo Ratio Limit support */ if (cpu_info->family == 6) { switch (cpu_info->model) { case 0x1A: /* Core i7, Xeon 5500 series * Bloomfield, Gainstown NHM-EP */ case 0x1E: /* Core i7 and i5 Processor * Clarksfield, Lynnfield, Jasper Forest */ case 0x1F: /* Core i7 and i5 Processor - Nehalem */ case 0x25: /* Westmere Client * Clarkdale, Arrandale */ case 0x2C: /* Westmere EP - Gulftown */ cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; case 0x2A: /* SNB */ case 0x2D: /* SNB Xeon */ case 0x3A: /* IVB */ case 0x3E: /* IVB Xeon */ cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; cpu_info->caps |= CPUPOWER_CAP_IS_SNB; break; case 0x2E: /* Nehalem-EX Xeon - Beckton */ case 0x2F: /* Westmere-EX Xeon - Eagleton */ default: break; } } } /* printf("ID: %u - Extid: 0x%x - Caps: 0x%llx\n", cpuid_level, ext_cpuid_level, cpu_info->caps); */ return ret; } td class='label'>space:mode:
authorDavid S. Miller <davem@davemloft.net>2017-01-30 15:55:48 -0500
committerDavid S. Miller <davem@davemloft.net>2017-01-30 15:56:40 -0500
commit1930b60352e7e195f55b27cde15d2a8f43342a8b (patch)
treeec3f66cd8d8110bf7b4f61e0446bdea505915db9 /drivers/usb/gadget/configfs.h
parent4be9993493bc7ee3fdf950a83bc050a3e6cf2a45 (diff)
parentec960de61503ef349588dccfa3ae02efabcc2762 (diff)
Merge branch 'dsa-port-mirroring'
Florian Fainelli says: ==================== net: dsa: Port mirroring support This patch series adds support for port mirroring in the two Broadcom switch drivers. The major part of the functional are actually with the plumbing between tc and the drivers. Changes in v5: - Added Jiri's Reviewed-by tag to first patch - rebase against latest net-next/master after bcm_sf2 CFP series Changes in v4: - rebased against latest net-next/master after Vivien's changes Changes in v3: - removed multiline comments from added structures - simplify error handling in dsa_slave_add_cls_matchall Changes in v2: - fixed filter removal logic to disable the ingress or egress mirroring when there are no longer ports being monitored in ingress or egress - removed a stray list_head in dsa_port structure that is not used Tested using the two iproute2 examples: tc qdisc add dev eth1 handle ffff: ingress tc filter add dev eth1 parent ffff: \ matchall skip_sw \ action mirred egress mirror \ dev eth2 tc qdisc add dev eth1 handle 1: root prio tc filter add dev eth1 parent 1: \ matchall skip_sw \ action mirred egress mirror \ dev eth2 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/gadget/configfs.h')