diff options
| author | Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org> | 2018-09-04 12:56:25 +0300 |
|---|---|---|
| committer | Maxim Uvarov <maxim.uvarov@linaro.org> | 2018-09-10 17:43:03 +0300 |
| commit | 0c20689a6a78818b5cdb97cfa6c23fa7d866a761 (patch) | |
| tree | 3129dd926cb5905ce7bb6305367826a62fe7f115 /platform/linux-generic/arch/x86/odp_sysinfo_parse.c | |
| parent | 4646069f0417fc180977100af2bc1f527b2d4f28 (diff) | |
linux-gen: x86: as a last resort parse max cpu freq from bogomips value
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org>
Reviewed-by: Bill Fischofer <bill.fischofer@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Diffstat (limited to 'platform/linux-generic/arch/x86/odp_sysinfo_parse.c')
| -rw-r--r-- | platform/linux-generic/arch/x86/odp_sysinfo_parse.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/platform/linux-generic/arch/x86/odp_sysinfo_parse.c b/platform/linux-generic/arch/x86/odp_sysinfo_parse.c index 504aa3efa..5084e6b5f 100644 --- a/platform/linux-generic/arch/x86/odp_sysinfo_parse.c +++ b/platform/linux-generic/arch/x86/odp_sysinfo_parse.c @@ -15,34 +15,54 @@ int cpuinfo_parser(FILE *file, system_info_t *sysinfo) char str[1024]; char *pos, *pos_end; double ghz = 0.0; + double mhz = 0.0; uint64_t hz; int id = 0; + bool freq_set = false; strcpy(sysinfo->cpu_arch_str, "x86"); while (fgets(str, sizeof(str), file) != NULL && id < CONFIG_NUM_CPU) { pos = strstr(str, "model name"); if (pos) { + freq_set = false; + /* Copy model name between : and @ characters */ pos = strchr(str, ':'); pos_end = strchr(str, '@'); - if (pos == NULL || pos_end == NULL) + if (pos == NULL) continue; - *(pos_end - 1) = '\0'; + if (pos_end != NULL) + *(pos_end - 1) = '\0'; + strncpy(sysinfo->model_str[id], pos + 2, MODEL_STR_SIZE - 1); if (sysinfo->cpu_hz_max[id]) { + freq_set = true; id++; continue; } /* max frequency needs to be set */ - if (sscanf(pos_end, "@ %lfGHz", &ghz) == 1) { + if (pos_end != NULL && + sscanf(pos_end, "@ %lfGHz", &ghz) == 1) { hz = (uint64_t)(ghz * 1000000000.0); - sysinfo->cpu_hz_max[id] = hz; + sysinfo->cpu_hz_max[id++] = hz; + freq_set = true; + } + } else if (!freq_set && + strstr(str, "bogomips") != NULL) { + pos = strchr(str, ':'); + if (pos == NULL) + continue; + + if (sscanf(pos + 2, "%lf", &mhz) == 1) { + /* On typical x86 BogoMIPS is freq * 2 */ + hz = (uint64_t)(mhz * 1000000.0 / 2); + sysinfo->cpu_hz_max[id++] = hz; + freq_set = true; } - id++; } } |