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x86_energy_perf_policy: Cleanup: Define BCLK_MHZ

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Replace the hardcoded value 100 with a named symbolic constant BCLK_MHZ in
ratio_2_sysfs_khz() to document the assumed bus clock frequency.

Assisted-by: GitHub-Copilot:Claude-Sonnet-4.6
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown 2026-05-06 10:00:00 -04:00
parent 22d8ec33a7
commit 029db3fc5e
1 changed files with 5 additions and 1 deletions
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6
tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
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@ -37,6 +37,10 @@
/* Maximum HWP activity window duration in microseconds */
#define HWP_WINDOW_MAX_USEC 1270000000U
/* Nominal bus clock frequency in MHz - assumed for all HWP systems */
#define BCLK_MHZ 100
#define KHZ_PER_MHZ 1000
struct msr_hwp_cap {
unsigned char highest;
unsigned char guaranteed;
@ -1163,7 +1167,7 @@ int print_pkg_msrs(int pkg)
*/
int ratio_2_sysfs_khz(int ratio)
{
int bclk_khz = 100 * 1000; /* 100,000 KHz = 100 MHz */
int bclk_khz = BCLK_MHZ * KHZ_PER_MHZ; /* Convert MHz to KHz */
return ratio * bclk_khz;
}