tools/power turbostat: rename tcc variables

There are two TCC activation temeprature.
One is the default TCC activation temperature, also known as TJ_MAX.
Another one is the effective TCC activation temperature, which is the
subtraction of default TCC activation temperature and TCC offset.

The name of variable tcc_activation_temp might be misleading here.
Thus rename tcc_activation_temp to tj_max, and use tcc_default and
tcc_offset to calculate the effective TCC activation temperature.

No functional change in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 6326bee..8f0a1d8 100644 (file)
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -89,8 +89,8 @@ unsigned long long cpuidle_cur_cpu_lpi_us;
 unsigned long long cpuidle_cur_sys_lpi_us;
 unsigned int gfx_cur_mhz;
 unsigned int gfx_act_mhz;
-unsigned int tcc_activation_temp;
-unsigned int tcc_activation_temp_override;
+unsigned int tj_max;
+unsigned int tj_max_override;
 int tcc_offset_bits;
 double rapl_power_units, rapl_time_units;
 double rapl_dram_energy_units, rapl_energy_units;
@@ -2118,7 +2118,7 @@ retry:
        if (DO_BIC(BIC_CoreTmp)) {
                if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
                        return -9;
-               c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
+               c->core_temp_c = tj_max - ((msr >> 16) & 0x7F);
        }
 
        if (do_rapl & RAPL_AMD_F17H) {
@@ -2224,7 +2224,7 @@ retry:
        if (DO_BIC(BIC_PkgTmp)) {
                if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
                        return -17;
-               p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
+               p->pkg_temp_c = tj_max - ((msr >> 16) & 0x7F);
        }
 
        if (DO_BIC(BIC_GFX_rc6))
@@ -4637,7 +4637,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p
 
                dts = (msr >> 16) & 0x7F;
                fprintf(outf, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
-                       cpu, msr, tcc_activation_temp - dts);
+                       cpu, msr, tj_max - dts);
 
                if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
                        return 0;
@@ -4645,7 +4645,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p
                dts = (msr >> 16) & 0x7F;
                dts2 = (msr >> 8) & 0x7F;
                fprintf(outf, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
-                       cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
+                       cpu, msr, tj_max - dts, tj_max - dts2);
        }
 
 
@@ -4658,7 +4658,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p
                dts = (msr >> 16) & 0x7F;
                resolution = (msr >> 27) & 0xF;
                fprintf(outf, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
-                       cpu, msr, tcc_activation_temp - dts, resolution);
+                       cpu, msr, tj_max - dts, resolution);
 
                if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
                        return 0;
@@ -4666,7 +4666,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p
                dts = (msr >> 16) & 0x7F;
                dts2 = (msr >> 8) & 0x7F;
                fprintf(outf, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
-                       cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
+                       cpu, msr, tj_max - dts, tj_max - dts2);
        }
 
        return 0;
@@ -4999,10 +4999,10 @@ int get_cpu_type(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 {
        unsigned long long msr;
-       unsigned int target_c_local, tcc_offset;
+       unsigned int tcc_default, tcc_offset;
        int cpu;
 
-       /* tcc_activation_temp is used only for dts or ptm */
+       /* tj_max is used only for dts or ptm */
        if (!(do_dts || do_ptm))
                return 0;
 
@@ -5016,10 +5016,10 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk
                return -1;
        }
 
-       if (tcc_activation_temp_override != 0) {
-               tcc_activation_temp = tcc_activation_temp_override;
+       if (tj_max_override != 0) {
+               tj_max = tj_max_override;
                fprintf(outf, "cpu%d: Using cmdline TCC Target (%d C)\n",
-                       cpu, tcc_activation_temp);
+                       cpu, tj_max);
                return 0;
        }
 
@@ -5030,38 +5030,38 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk
        if (get_msr(base_cpu, MSR_IA32_TEMPERATURE_TARGET, &msr))
                goto guess;
 
-       target_c_local = (msr >> 16) & 0xFF;
+       tcc_default = (msr >> 16) & 0xFF;
 
        if (!quiet) {
                switch (tcc_offset_bits) {
                case 4:
                        tcc_offset = (msr >> 24) & 0xF;
                        fprintf(outf, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C) (%d default - %d offset)\n",
-                       cpu, msr, target_c_local - tcc_offset, target_c_local, tcc_offset);
+                       cpu, msr, tcc_default - tcc_offset, tcc_default, tcc_offset);
                        break;
                case 6:
                        tcc_offset = (msr >> 24) & 0x3F;
                        fprintf(outf, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C) (%d default - %d offset)\n",
-                       cpu, msr, target_c_local - tcc_offset, target_c_local, tcc_offset);
+                       cpu, msr, tcc_default - tcc_offset, tcc_default, tcc_offset);
                        break;
                default:
                        fprintf(outf, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
-                       cpu, msr, target_c_local);
+                       cpu, msr, tcc_default);
                        break;
                }
        }
 
-       if (!target_c_local)
+       if (!tcc_default)
                goto guess;
 
-       tcc_activation_temp = target_c_local;
+       tj_max = tcc_default;
 
        return 0;
 
 guess:
-       tcc_activation_temp = TJMAX_DEFAULT;
+       tj_max = TJMAX_DEFAULT;
        fprintf(outf, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
-               cpu, tcc_activation_temp);
+               cpu, tj_max);
 
        return 0;
 }
@@ -6421,7 +6421,7 @@ void cmdline(int argc, char **argv)
                        summary_only++;
                        break;
                case 'T':
-                       tcc_activation_temp_override = atoi(optarg);
+                       tj_max_override = atoi(optarg);
                        break;
                case 'v':
                        print_version();