thermal: intel: powerclamp: Remove dead code for target mwait value

After conversion of this driver to use powercap idle_inject core, this
driver doesn't use target_mwait value. So remove dead code.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/thermal/intel/intel_powerclamp.c b/drivers/thermal/intel/intel_powerclamp.c
index 5ac5cb6..bc6eb0d 100644 (file)
--- a/drivers/thermal/intel/intel_powerclamp.c
+++ b/drivers/thermal/intel/intel_powerclamp.c
@@ -49,7 +49,6 @@
  */
 #define DEFAULT_DURATION_JIFFIES (6)
 
-static unsigned int target_mwait;
 static struct dentry *debug_dir;
 static bool poll_pkg_cstate_enable;
 
@@ -312,34 +311,6 @@ MODULE_PARM_DESC(window_size, "sliding window in number of clamping cycles\n"
        "\twindow size results in slower response time but more smooth\n"
        "\tclamping results. default to 2.");
 
-static void find_target_mwait(void)
-{
-       unsigned int eax, ebx, ecx, edx;
-       unsigned int highest_cstate = 0;
-       unsigned int highest_subcstate = 0;
-       int i;
-
-       if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF)
-               return;
-
-       cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &edx);
-
-       if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) ||
-           !(ecx & CPUID5_ECX_INTERRUPT_BREAK))
-               return;
-
-       edx >>= MWAIT_SUBSTATE_SIZE;
-       for (i = 0; i < 7 && edx; i++, edx >>= MWAIT_SUBSTATE_SIZE) {
-               if (edx & MWAIT_SUBSTATE_MASK) {
-                       highest_cstate = i;
-                       highest_subcstate = edx & MWAIT_SUBSTATE_MASK;
-               }
-       }
-       target_mwait = (highest_cstate << MWAIT_SUBSTATE_SIZE) |
-               (highest_subcstate - 1);
-
-}
-
 struct pkg_cstate_info {
        bool skip;
        int msr_index;
@@ -759,9 +730,6 @@ static int __init powerclamp_probe(void)
                return -ENODEV;
        }
 
-       /* find the deepest mwait value */
-       find_target_mwait();
-
        return 0;
 }