6.6-stable review patch. If anyone has any objections, please let me know.
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From: Justin Ernst justin.ernst@hpe.com
[ Upstream commit 60add818ab2543b7e4f2bfeaacf2504743c1eb50 ]
Running turbostat on a 16 socket HPE Scale-up Compute 3200 (SapphireRapids) fails with: turbostat: /sys/devices/system/cpu/intel_uncore_frequency/package_010_die_00/current_freq_khz: open failed: No such file or directory
We observe the sysfs uncore frequency directories named: ... package_09_die_00/ package_10_die_00/ package_11_die_00/ ... package_15_die_00/
The culprit is an incorrect sprintf format string "package_0%d_die_0%d" used with each instance of reading uncore frequency files. uncore-frequency-common.c creates the sysfs directory with the format "package_%02d_die_%02d". Once the package value reaches double digits, the formats diverge.
Change each instance of "package_0%d_die_0%d" to "package_%02d_die_%02d".
[lenb: deleted the probe part of this patch, as it was already fixed]
Signed-off-by: Justin Ernst justin.ernst@hpe.com Reviewed-by: Thomas Renninger trenn@suse.de Signed-off-by: Len Brown len.brown@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/power/x86/turbostat/turbostat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 0561362301c53..ffa964ddbacef 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -1969,7 +1969,7 @@ unsigned long long get_uncore_mhz(int package, int die) { char path[128];
- sprintf(path, "/sys/devices/system/cpu/intel_uncore_frequency/package_0%d_die_0%d/current_freq_khz", package, + sprintf(path, "/sys/devices/system/cpu/intel_uncore_frequency/package_%02d_die_%02d/current_freq_khz", package, die);
return (snapshot_sysfs_counter(path) / 1000);