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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2024-01-18 15:23:40 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-01-22 13:59:22 +0300
commitc6a783be82c893c6f124a5853bef2edeaf26dadf (patch)
tree2ff58c39848034bad9fd17d3901a0a8ce085a50b /drivers/thermal
parent6613476e225e090cc9aad49be7fa504e290dd33d (diff)
downloadlinux-c6a783be82c893c6f124a5853bef2edeaf26dadf.tar.xz
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>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/intel/intel_powerclamp.c32
1 files changed, 0 insertions, 32 deletions
diff --git a/drivers/thermal/intel/intel_powerclamp.c b/drivers/thermal/intel/intel_powerclamp.c
index 5ac5cb60bae6..bc6eb0dd66a4 100644
--- 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;
}