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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Browse source 
Pull idle update from Len Brown:
 "Two Intel-platform-specific updates to intel_idle, and a cosmetic
  tweak to the turbostat utility"

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: tweak whitespace in output format
  intel_idle: Broadwell support
  intel_idle: Disable Baytrail Core and Module C6 auto-demotion
This commit is contained in:
Linus Torvalds 2014-08-16 09:25:34 -06:00
commit 49899007b9
3 changed files with 119 additions and 41 deletions
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3
arch/x86/include/uapi/asm/msr-index.h
View file

@ -149,6 +149,9 @@
#define MSR_CORE_C1_RES 0x00000660
#define MSR_CC6_DEMOTION_POLICY_CONFIG 0x00000668
#define MSR_MC6_DEMOTION_POLICY_CONFIG 0x00000669
#define MSR_AMD64_MC0_MASK 0xc0010044
#define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x))

77
drivers/idle/intel_idle.c
View file

@ -89,6 +89,7 @@ struct idle_cpu {
* Indicate which enable bits to clear here.
*/
unsigned long auto_demotion_disable_flags;
bool byt_auto_demotion_disable_flag;
bool disable_promotion_to_c1e;
};
@ -442,6 +443,66 @@ static struct cpuidle_state hsw_cstates[] = {
{
.enter = NULL }
};
static struct cpuidle_state bdw_cstates[] = {
{
.name = "C1-BDW",
.desc = "MWAIT 0x00",
.flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle },
{
.name = "C1E-BDW",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01) | CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle },
{
.name = "C3-BDW",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 40,
.target_residency = 100,
.enter = &intel_idle },
{
.name = "C6-BDW",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 133,
.target_residency = 400,
.enter = &intel_idle },
{
.name = "C7s-BDW",
.desc = "MWAIT 0x32",
.flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 166,
.target_residency = 500,
.enter = &intel_idle },
{
.name = "C8-BDW",
.desc = "MWAIT 0x40",
.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 300,
.target_residency = 900,
.enter = &intel_idle },
{
.name = "C9-BDW",
.desc = "MWAIT 0x50",
.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 600,
.target_residency = 1800,
.enter = &intel_idle },
{
.name = "C10-BDW",
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 2600,
.target_residency = 7700,
.enter = &intel_idle },
{
.enter = NULL }
};
static struct cpuidle_state atom_cstates[] = {
{
@ -613,6 +674,7 @@ static const struct idle_cpu idle_cpu_snb = {
static const struct idle_cpu idle_cpu_byt = {
.state_table = byt_cstates,
.disable_promotion_to_c1e = true,
.byt_auto_demotion_disable_flag = true,
};
static const struct idle_cpu idle_cpu_ivb = {
@ -630,6 +692,11 @@ static const struct idle_cpu idle_cpu_hsw = {
.disable_promotion_to_c1e = true,
};
static const struct idle_cpu idle_cpu_bdw = {
.state_table = bdw_cstates,
.disable_promotion_to_c1e = true,
};
static const struct idle_cpu idle_cpu_avn = {
.state_table = avn_cstates,
.disable_promotion_to_c1e = true,
@ -658,7 +725,10 @@ static const struct x86_cpu_id intel_idle_ids[] = {
ICPU(0x3f, idle_cpu_hsw),
ICPU(0x45, idle_cpu_hsw),
ICPU(0x46, idle_cpu_hsw),
ICPU(0x4D, idle_cpu_avn),
ICPU(0x4d, idle_cpu_avn),
ICPU(0x3d, idle_cpu_bdw),
ICPU(0x4f, idle_cpu_bdw),
ICPU(0x56, idle_cpu_bdw),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
@ -814,6 +884,11 @@ static int __init intel_idle_cpuidle_driver_init(void)
if (icpu->auto_demotion_disable_flags)
on_each_cpu(auto_demotion_disable, NULL, 1);
if (icpu->byt_auto_demotion_disable_flag) {
wrmsrl(MSR_CC6_DEMOTION_POLICY_CONFIG, 0);
wrmsrl(MSR_MC6_DEMOTION_POLICY_CONFIG, 0);
}
if (icpu->disable_promotion_to_c1e) /* each-cpu is redundant */
on_each_cpu(c1e_promotion_disable, NULL, 1);

80
tools/power/x86/turbostat/turbostat.c
View file

@ -267,90 +267,90 @@ int get_msr(int cpu, off_t offset, unsigned long long *msr)
/*
* Example Format w/ field column widths:
*
* Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt
* 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567 1234567
* Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt
* 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678
*/
void print_header(void)
{
if (show_pkg)
outp += sprintf(outp, "Package ");
outp += sprintf(outp, " Package");
if (show_core)
outp += sprintf(outp, " Core ");
outp += sprintf(outp, " Core");
if (show_cpu)
outp += sprintf(outp, " CPU ");
outp += sprintf(outp, " CPU");
if (has_aperf)
outp += sprintf(outp, "Avg_MHz ");
outp += sprintf(outp, " Avg_MHz");
if (do_nhm_cstates)
outp += sprintf(outp, " %%Busy ");
outp += sprintf(outp, " %%Busy");
if (has_aperf)
outp += sprintf(outp, "Bzy_MHz ");
outp += sprintf(outp, "TSC_MHz ");
outp += sprintf(outp, " Bzy_MHz");
outp += sprintf(outp, " TSC_MHz");
if (do_smi)
outp += sprintf(outp, " SMI ");
outp += sprintf(outp, " SMI");
if (extra_delta_offset32)
outp += sprintf(outp, " count 0x%03X ", extra_delta_offset32);
outp += sprintf(outp, " count 0x%03X", extra_delta_offset32);
if (extra_delta_offset64)
outp += sprintf(outp, " COUNT 0x%03X ", extra_delta_offset64);
outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64);
if (extra_msr_offset32)
outp += sprintf(outp, " MSR 0x%03X ", extra_msr_offset32);
outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32);
if (extra_msr_offset64)
outp += sprintf(outp, " MSR 0x%03X ", extra_msr_offset64);
outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64);
if (do_nhm_cstates)
outp += sprintf(outp, " CPU%%c1 ");
outp += sprintf(outp, " CPU%%c1");
if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " CPU%%c3 ");
outp += sprintf(outp, " CPU%%c3");
if (do_nhm_cstates)
outp += sprintf(outp, " CPU%%c6 ");
outp += sprintf(outp, " CPU%%c6");
if (do_snb_cstates)
outp += sprintf(outp, " CPU%%c7 ");
outp += sprintf(outp, " CPU%%c7");
if (do_dts)
outp += sprintf(outp, "CoreTmp ");
outp += sprintf(outp, " CoreTmp");
if (do_ptm)
outp += sprintf(outp, " PkgTmp ");
outp += sprintf(outp, " PkgTmp");
if (do_snb_cstates)
outp += sprintf(outp, "Pkg%%pc2 ");
outp += sprintf(outp, " Pkg%%pc2");
if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, "Pkg%%pc3 ");
outp += sprintf(outp, " Pkg%%pc3");
if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, "Pkg%%pc6 ");
outp += sprintf(outp, " Pkg%%pc6");
if (do_snb_cstates)
outp += sprintf(outp, "Pkg%%pc7 ");
outp += sprintf(outp, " Pkg%%pc7");
if (do_c8_c9_c10) {
outp += sprintf(outp, "Pkg%%pc8 ");
outp += sprintf(outp, "Pkg%%pc9 ");
outp += sprintf(outp, "Pk%%pc10 ");
outp += sprintf(outp, " Pkg%%pc8");
outp += sprintf(outp, " Pkg%%pc9");
outp += sprintf(outp, " Pk%%pc10");
}
if (do_rapl && !rapl_joules) {
if (do_rapl & RAPL_PKG)
outp += sprintf(outp, "PkgWatt ");
outp += sprintf(outp, " PkgWatt");
if (do_rapl & RAPL_CORES)
outp += sprintf(outp, "CorWatt ");
outp += sprintf(outp, " CorWatt");
if (do_rapl & RAPL_GFX)
outp += sprintf(outp, "GFXWatt ");
outp += sprintf(outp, " GFXWatt");
if (do_rapl & RAPL_DRAM)
outp += sprintf(outp, "RAMWatt ");
outp += sprintf(outp, " RAMWatt");
if (do_rapl & RAPL_PKG_PERF_STATUS)
outp += sprintf(outp, " PKG_%% ");
outp += sprintf(outp, " PKG_%%");
if (do_rapl & RAPL_DRAM_PERF_STATUS)
outp += sprintf(outp, " RAM_%% ");
outp += sprintf(outp, " RAM_%%");
} else {
if (do_rapl & RAPL_PKG)
outp += sprintf(outp, " Pkg_J ");
outp += sprintf(outp, " Pkg_J");
if (do_rapl & RAPL_CORES)
outp += sprintf(outp, " Cor_J ");
outp += sprintf(outp, " Cor_J");
if (do_rapl & RAPL_GFX)
outp += sprintf(outp, " GFX_J ");
outp += sprintf(outp, " GFX_J");
if (do_rapl & RAPL_DRAM)
outp += sprintf(outp, " RAM_W ");
outp += sprintf(outp, " RAM_W");
if (do_rapl & RAPL_PKG_PERF_STATUS)
outp += sprintf(outp, " PKG_%% ");
outp += sprintf(outp, " PKG_%%");
if (do_rapl & RAPL_DRAM_PERF_STATUS)
outp += sprintf(outp, " RAM_%% ");
outp += sprintf(outp, " time ");
outp += sprintf(outp, " RAM_%%");
outp += sprintf(outp, " time");
}
outp += sprintf(outp, "\n");