This is a note to let you know that I've just added the patch titled
x86/intel_idle: Add CPU model 0x4a (Atom Z34xx series)
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-intel_idle-add-cpu-model-0x4a-atom-z34xx-series.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Apr 10 17:43:56 CEST 2017
From: alexander.levin@xxxxxxxxxxx
Date: Tue, 4 Apr 2017 19:32:08 +0000
Subject: x86/intel_idle: Add CPU model 0x4a (Atom Z34xx series)
To: "gregkh@xxxxxxxxxxxxxxxxxxx" <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: "stable@xxxxxxxxxxxxxxx" <stable@xxxxxxxxxxxxxxx>
Message-ID: <20170404193158.19041-18-alexander.levin@xxxxxxxxxxx>
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
[ Upstream commit 5e7ec268fd48d63cfd0e3a9be6c6443f01673bd4 ]
Add CPU ID for Atom Z34xx processors. Datasheets indicate support for this,
detailed information about potential quirks or limitations are missing, though.
So we just reuse the definition from official BSP code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/idle/intel_idle.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -724,6 +724,50 @@ static struct cpuidle_state atom_cstates
{
.enter = NULL }
};
+static struct cpuidle_state tangier_cstates[] = {
+ {
+ .name = "C1-TNG",
+ .desc = "MWAIT 0x00",
+ .flags = MWAIT2flg(0x00),
+ .exit_latency = 1,
+ .target_residency = 4,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .name = "C4-TNG",
+ .desc = "MWAIT 0x30",
+ .flags = MWAIT2flg(0x30) | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 100,
+ .target_residency = 400,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .name = "C6-TNG",
+ .desc = "MWAIT 0x52",
+ .flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 140,
+ .target_residency = 560,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .name = "C7-TNG",
+ .desc = "MWAIT 0x60",
+ .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 1200,
+ .target_residency = 4000,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .name = "C9-TNG",
+ .desc = "MWAIT 0x64",
+ .flags = MWAIT2flg(0x64) | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 10000,
+ .target_residency = 20000,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .enter = NULL }
+};
static struct cpuidle_state avn_cstates[] = {
{
.name = "C1-AVN",
@@ -978,6 +1022,10 @@ static const struct idle_cpu idle_cpu_at
.state_table = atom_cstates,
};
+static const struct idle_cpu idle_cpu_tangier = {
+ .state_table = tangier_cstates,
+};
+
static const struct idle_cpu idle_cpu_lincroft = {
.state_table = atom_cstates,
.auto_demotion_disable_flags = ATM_LNC_C6_AUTO_DEMOTE,
@@ -1066,6 +1114,7 @@ static const struct x86_cpu_id intel_idl
ICPU(INTEL_FAM6_SANDYBRIDGE_X, idle_cpu_snb),
ICPU(INTEL_FAM6_ATOM_CEDARVIEW, idle_cpu_atom),
ICPU(INTEL_FAM6_ATOM_SILVERMONT1, idle_cpu_byt),
+ ICPU(INTEL_FAM6_ATOM_MERRIFIELD, idle_cpu_tangier),
ICPU(INTEL_FAM6_ATOM_AIRMONT, idle_cpu_cht),
ICPU(INTEL_FAM6_IVYBRIDGE, idle_cpu_ivb),
ICPU(INTEL_FAM6_IVYBRIDGE_X, idle_cpu_ivt),
Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are
queue-4.9/staging-android-ashmem-lseek-failed-due-to-no-fmode_lseek.patch
queue-4.9/arm64-dts-hisi-fix-hip06-sas-am-max-trans-quirk.patch
queue-4.9/scsi-ufs-introduce-ufshcd_quirk_prdt_byte_gran-quirk.patch
queue-4.9/acpi-button-change-default-behavior-to-lid_init_state-open.patch
queue-4.9/usb-musb-da8xx-fix-host-mode-suspend.patch
queue-4.9/drm-i915-fix-intel_bdw_ids-definition.patch
queue-4.9/sysfs-be-careful-of-error-returns-from-ops-show.patch
queue-4.9/mips-flush-wrong-invalid-ftlb-entry-for-huge-page.patch
queue-4.9/mips-end-spinlocks-with-.insn.patch
queue-4.9/mmc-sdhci-of-esdhc-remove-default-broken-cd-for-arm.patch
queue-4.9/kvm-arm-arm64-fix-locking-for-kvm_free_stage2_pgd.patch
queue-4.9/powerpc-disable-hfscr-if-tm-is-not-supported.patch
queue-4.9/metag-usercopy-add-missing-fixups.patch
queue-4.9/nios2-reserve-boot-memory-for-device-tree.patch
queue-4.9/alsa-usb-audio-add-implicit-fb-quirk-for-axe-fx-ii.patch
queue-4.9/svcauth_gss-close-connection-when-dropping-an-incoming-message.patch
queue-4.9/platform-x86-asus-wmi-detect-quirk_no_rfkill-from-the-dsdt.patch
queue-4.9/ring-buffer-fix-return-value-check-in-test_ringbuffer.patch
queue-4.9/ppdev-check-before-attaching-port.patch
queue-4.9/firmware-qcom-scm-fix-interrupted-scm-calls.patch
queue-4.9/pci-add-broadcom-northstar2-paxc-quirk-for-device-class-and-mpss.patch
queue-4.9/powerpc-64-fix-flush_-d-i-cache_range-called-from-modules.patch
queue-4.9/drm-sun4i-tcon-move-soc-specific-quirks-to-a-dt-matched-data-structure.patch
queue-4.9/acpi-gpio-do-not-fall-back-to-parsing-_crs-when-we-get-a-deferral.patch
queue-4.9/pci-explain-arm64-acpi-mcfg-quirk-kconfig-and-build-strategy.patch
queue-4.9/metag-usercopy-add-early-abort-to-copy_to_user.patch
queue-4.9/powerpc-crypto-crc32c-vpmsum-fix-missing-preempt_disable.patch
queue-4.9/hid-multitouch-do-not-retrieve-all-reports-for-all-devices.patch
queue-4.9/arm-arm64-kvm-take-mmap_sem-in-kvm_arch_prepare_memory_region.patch
queue-4.9/arm-dts-stih407-family-set-snps-dis_u3_susphy_quirk.patch
queue-4.9/rx51-broken-build.patch
queue-4.9/mips-ralink-fix-typos-in-rt3883-pinctrl.patch
queue-4.9/cfg80211-check-rdev-resume-callback-only-for-registered-wiphy.patch
queue-4.9/metag-usercopy-set-flags-before-addz.patch
queue-4.9/asoc-intel-bytct_rt5640-change-default-capture-settings.patch
queue-4.9/metag-usercopy-fix-src-fixup-in-from-user-rapf-loops.patch
queue-4.9/hid-asus-fix-keyboard-support.patch
queue-4.9/drm-sun4i-add-compatible-string-for-a31-a31s-tcon-timing-controller.patch
queue-4.9/arm64-pci-manage-controller-specific-data-on-per-controller-basis.patch
queue-4.9/platform-x86-acer-wmi-only-supports-amw0_guid1-on-acer-family.patch
queue-4.9/xtensa-make-__pa-work-with-uncached-kseg-addresses.patch
queue-4.9/asoc-codecs-rt5670-add-quirk-for-lenovo-thinkpad-10.patch
queue-4.9/clk-lpc32xx-add-a-quirk-for-pwm-and-ms-clock-dividers.patch
queue-4.9/powerpc-mm-add-missing-global-tlb-invalidate-if-cxl-is-active.patch
queue-4.9/tools-power-turbostat-dump-atom-p-states-correctly.patch
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queue-4.9/pci-acpi-check-for-platform-specific-mcfg-quirks.patch
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queue-4.9/dm-verity-fec-fix-bufio-leaks.patch
queue-4.9/x86-intel_idle-add-cpu-model-0x4a-atom-z34xx-series.patch
queue-4.9/hid-wacom-don-t-apply-generic-settings-to-old-devices.patch
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queue-4.9/hid-asus-add-i2c-touchpad-support.patch
queue-4.9/nvme-simplify-stripe-quirk.patch
queue-4.9/drm-sun4i-add-compatible-strings-for-a31-a31s-display-pipelines.patch
queue-4.9/dm-verity-fec-limit-error-correction-recursion.patch
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queue-4.9/iio-bmg160-reset-chip-when-probing.patch
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queue-4.9/scsi-ufs-refactor-device-descriptor-reading.patch
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queue-4.9/mips-lantiq-fix-missing-xbar-kernel-panic.patch
queue-4.9/metag-usercopy-zero-rest-of-buffer-from-copy_from_user.patch
queue-4.9/xfs-honor-falloc_fl_keep_size-when-punching-ends-of-files.patch
queue-4.9/hid-multitouch-enable-the-surface-3-type-cover-to-report-multitouch-data.patch
queue-4.9/scsi-ufs-issue-link-starup-2-times-if-device-isn-t-active.patch
queue-4.9/asoc-rt5670-add-missing-10ec5072-acpi-id.patch
queue-4.9/metag-usercopy-fix-alignment-error-checking.patch
queue-4.9/x86-reboot-quirks-add-asus-eeebook-x205ta-reboot-quirk.patch
queue-4.9/input-gpio_keys-add-support-for-gpio-descriptors.patch
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queue-4.9/acpi-save-nvs-memory-for-lenovo-g50-45.patch
queue-4.9/asoc-intel-cht_bsw_rt5645-harden-acpi-device-detection.patch
queue-4.9/sata-ahci-da850-implement-a-workaround-for-the-softreset-quirk.patch
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queue-4.9/tools-power-turbostat-decode-baytrail-cc6-and-mc6-demotion-configuration.patch
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queue-4.9/arm-smccc-update-hvc-comment-to-describe-new-quirk-parameter.patch
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queue-4.9/usb-xhci-add-quirk-flag-for-broken-ped-bits.patch
queue-4.9/scsi-ufs-ensure-that-host-pa_tactivate-is-higher-than-device.patch
queue-4.9/mips-force-o32-fp64-support-on-32bit-mips64r6-kernels.patch
queue-4.9/arm-davinci-add-skeleton-for-pdata-quirks.patch
queue-4.9/usb-dwc3-gadget-delay-unmap-of-bounced-requests.patch
queue-4.9/x86-reboot-quirks-fix-typo-in-asus-eeebook-x205ta-reboot-quirk.patch
queue-4.9/mips-add-mips_cpu_ftlb-for-loongson-3a-r2.patch
queue-4.9/alsa-usb-audio-add-native-dsd-support-for-teac-501-503-dac.patch
queue-4.9/kbuild-use-cc-disable-warning-consistently-for-maybe-uninitialized.patch
queue-4.9/arm-omap2-fix-init-for-multiple-quirks-for-the-same-soc.patch
queue-4.9/pci-add-mcfg-quirks-for-hisilicon-hip05-06-07-host-controllers.patch
queue-4.9/hid-microsoft-add-surface-4-type-cover-pro-4-not-jp-versions.patch
queue-4.9/ppdev-fix-registering-same-device-name.patch
queue-4.9/pci-add-mcfg-quirks-for-cavium-thunderx-pass2.x-host-controller.patch
queue-4.9/x86-reboot-quirks-add-asus-eeebook-x205ta-w-reboot-quirk.patch
queue-4.9/acpi-sysfs-provide-quirk-mechanism-to-prevent-gpe-flooding.patch
queue-4.9/scsi-ufs-add-quirk-to-increase-host-pa_saveconfigtime.patch
queue-4.9/drm-ttm-drm-vmwgfx-relax-permission-checking-when-opening-surfaces.patch
queue-4.9/arm64-pci-add-local-struct-device-pointers.patch
queue-4.9/drm-vmwgfx-null-pointer-dereference-in-vmw_surface_define_ioctl.patch
queue-4.9/asoc-sun4i-i2s-add-quirks-to-handle-a31-compatible.patch