@@ -360,6 +360,7 @@
#define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */
#define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */
#define X86_FEATURE_HFI (14*32+19) /* Hardware Feedback Interface */
+#define X86_FEATURE_ITD (14*32+23) /* Intel Thread Director */
/* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */
#define X86_FEATURE_NPT (15*32+ 0) /* Nested Page Table support */
@@ -82,6 +82,7 @@ static const struct cpuid_dep cpuid_deps[] = {
{ X86_FEATURE_XFD, X86_FEATURE_XGETBV1 },
{ X86_FEATURE_AMX_TILE, X86_FEATURE_XFD },
{ X86_FEATURE_SHSTK, X86_FEATURE_XSAVES },
+ { X86_FEATURE_ITD, X86_FEATURE_HFI },
{}
};
Intel Thread Director (ITD) provides hardware resources to classify the current task. The classification reflects the instructions per cycle of such current task. ITD extends the Hardware Feedback Interface table to provide performance and energy efficiency capabilities for each of the supported classes of tasks. Cc: Len Brown <len.brown@intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Cc: Zhao Liu <zhao1.liu@linux.intel.com> Cc: Zhuocheng Ding <zhuocheng.ding@intel.com> Cc: x86@kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> --- Patch cherry-picked from the IPC classes patchset. --- --- arch/x86/include/asm/cpufeatures.h | 1 + arch/x86/kernel/cpu/cpuid-deps.c | 1 + 2 files changed, 2 insertions(+)