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Merge tag 'thermal-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

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Pull thermal control update from Rafael Wysocki:
 "Remove some dead code from the Intel powerclamp thermal control driver
  (Srinivas Pandruvada)"

* tag 'thermal-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel: powerclamp: Remove dead code for target mwait value
This commit is contained in:
Linus Torvalds
2024-01-26 15:06:23 -08:00
parent 0c879d8813 c6a783be82
commit 667c889308
1 changed files with 0 additions and 32 deletions
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drivers/thermal/intel/intel_powerclamp.c
-32
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@@ -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;
}