aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-16 09:25:34 -0600
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-16 09:25:34 -0600
commit49899007b9401486421c99bb269db89b88136e47 (patch)
treece73158ca09d04749dc2685eacf86b45554bd666
parent6fedb0ff32e6bfcc408a8d52c68b8bfe4e3d945b (diff)
parente7c95ff32d0075736cbdd8d38d954fb4ed6ced9b (diff)
downloadlinux-49899007b9401486421c99bb269db89b88136e47.tar.gz
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
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
-rw-r--r--arch/x86/include/uapi/asm/msr-index.h3
-rw-r--r--drivers/idle/intel_idle.c77
-rw-r--r--tools/power/x86/turbostat/turbostat.c80
3 files changed, 119 insertions, 41 deletions
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index eac9e92fe181..e21331ce368f 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -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))
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 4d140bbbe100..9b7ee7e427df 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -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);
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index d0396af99fa0..5b1b807265a1 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -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");