diff options
| -rw-r--r-- | intel_pstate-Fix-setting-VID.patch | 133 | ||||
| -rw-r--r-- | intel_pstate-Update-documentation-of-max-min_perf_pct-sysfs-files.patch | 97 | ||||
| -rw-r--r-- | intel_pstate-dont-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch | 163 | ||||
| -rw-r--r-- | kernel.spec | 13 |
4 files changed, 405 insertions, 1 deletions
diff --git a/intel_pstate-Fix-setting-VID.patch b/intel_pstate-Fix-setting-VID.patch new file mode 100644 index 00000000..a71432c5 --- /dev/null +++ b/intel_pstate-Fix-setting-VID.patch @@ -0,0 +1,133 @@ + +Delivered-To: jwboyer@gmail.com +Received: by 10.76.6.212 with SMTP id d20csp423274oaa; + Fri, 20 Jun 2014 07:30:34 -0700 (PDT) +X-Received: by 10.66.141.165 with SMTP id rp5mr5252763pab.90.1403274633343; + Fri, 20 Jun 2014 07:30:33 -0700 (PDT) +Return-Path: <stable-owner@vger.kernel.org> +Received: from vger.kernel.org (vger.kernel.org. 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[50.43.41.81]) + by mx.google.com with ESMTPSA id vx10sm44287848pac.17.2014.06.20.07.28.09 + for <multiple recipients> + (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); + Fri, 20 Jun 2014 07:28:10 -0700 (PDT) +From: dirk.brandewie@gmail.com +X-Google-Original-From: dirk.j.brandewie@intel.com +To: linux-pm@vger.kernel.org +Cc: rjw@rjwysocki.net, dirk.brandewie@gmail.com, + stable@vger.kernel.org, Dirk Brandewie <dirk.j.brandewie@intel.com> +Subject: [PATCH 1/3] intel_pstate: Fix setting VID +Date: Fri, 20 Jun 2014 07:27:58 -0700 +Message-Id: <1403274480-10593-2-git-send-email-dirk.j.brandewie@intel.com> +X-Mailer: git-send-email 1.9.0 +In-Reply-To: <1403274480-10593-1-git-send-email-dirk.j.brandewie@intel.com> +References: <1403274480-10593-1-git-send-email-dirk.j.brandewie@intel.com> +Sender: stable-owner@vger.kernel.org +Precedence: bulk +List-ID: <stable.vger.kernel.org> +X-Mailing-List: stable@vger.kernel.org + +From: Dirk Brandewie <dirk.j.brandewie@intel.com> + +Commit 21855ff5 intel_pstate: Set turbo VID for BayTrail introduced +setting the turbo VID which is required to prevent a machine check on +some Baytrail SKUs under heavy graphics based workloads. The +docmumentation update that brought the requirement to light also +changed the bit mask used for enumerating P state and VID values from +0x7f to 0x3f. + +This change returns the mask value to 0x7f. + +Tested with the Intel NUC DN2820FYK, +BIOS version FYBYT10H.86A.0034.2014.0513.1413 with v3.16-rc1 and +v3.14.8 kernel versions. + +Reported-by: Rune Reterson <rune@megahurts.dk> +Reported-by: Eric Eickmeyer <erich@ericheickmeyer.com> +Tested-by: Rune Reterson <rune@megahurts.dk> +Tested-by: Eric Eickmeyer <erich@ericheickmeyer.com> + +References: https://bugzilla.kernel.org/show_bug.cgi?id=77951 + +Cc: Cc: Stable <stable@vger.kernel.org> [3.13+] +Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> +--- + drivers/cpufreq/intel_pstate.c | 10 +++++----- + 1 file changed, 5 insertions(+), 5 deletions(-) + +diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c +index 924bb2d..74376d6 100644 +--- a/drivers/cpufreq/intel_pstate.c ++++ b/drivers/cpufreq/intel_pstate.c +@@ -357,21 +357,21 @@ static int byt_get_min_pstate(void) + { + u64 value; + rdmsrl(BYT_RATIOS, value); +- return (value >> 8) & 0x3F; ++ return (value >> 8) & 0x7F; + } + + static int byt_get_max_pstate(void) + { + u64 value; + rdmsrl(BYT_RATIOS, value); +- return (value >> 16) & 0x3F; ++ return (value >> 16) & 0x7F; + } + + static int byt_get_turbo_pstate(void) + { + u64 value; + rdmsrl(BYT_TURBO_RATIOS, value); +- return value & 0x3F; ++ return value & 0x7F; + } + + static void byt_set_pstate(struct cpudata *cpudata, int pstate) +@@ -405,8 +405,8 @@ static void byt_get_vid(struct cpudata *cpudata) + + + rdmsrl(BYT_VIDS, value); +- cpudata->vid.min = int_tofp((value >> 8) & 0x3f); +- cpudata->vid.max = int_tofp((value >> 16) & 0x3f); ++ cpudata->vid.min = int_tofp((value >> 8) & 0x7f); ++ cpudata->vid.max = int_tofp((value >> 16) & 0x7f); + cpudata->vid.ratio = div_fp( + cpudata->vid.max - cpudata->vid.min, + int_tofp(cpudata->pstate.max_pstate - +-- +1.9.0 + +-- +To unsubscribe from this list: send the line "unsubscribe stable" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/intel_pstate-Update-documentation-of-max-min_perf_pct-sysfs-files.patch b/intel_pstate-Update-documentation-of-max-min_perf_pct-sysfs-files.patch new file mode 100644 index 00000000..304b6009 --- /dev/null +++ b/intel_pstate-Update-documentation-of-max-min_perf_pct-sysfs-files.patch @@ -0,0 +1,97 @@ + +Delivered-To: jwboyer@gmail.com +Received: by 10.76.6.212 with SMTP id d20csp423275oaa; + Fri, 20 Jun 2014 07:30:34 -0700 (PDT) +X-Received: by 10.68.190.98 with SMTP id gp2mr5272210pbc.88.1403274634321; + Fri, 20 Jun 2014 07:30:34 -0700 (PDT) +Return-Path: <stable-owner@vger.kernel.org> +Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) + by mx.google.com with ESMTP id hp1si10074557pad.83.2014.06.20.07.29.43 + for <multiple recipients>; + Fri, 20 Jun 2014 07:30:34 -0700 (PDT) +Received-SPF: none (google.com: stable-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; +Authentication-Results: mx.google.com; + spf=neutral (google.com: stable-owner@vger.kernel.org does not designate permitted sender hosts) smtp.mail=stable-owner@vger.kernel.org; + dkim=neutral (body hash did not verify) header.i=@; + dmarc=fail (p=NONE dis=NONE) header.from=gmail.com +Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand + id S1752837AbaFTO2Q (ORCPT <rfc822;tuffkidtt@gmail.com> + 73 others); + Fri, 20 Jun 2014 10:28:16 -0400 +Received: from mail-pa0-f44.google.com ([209.85.220.44]:49238 "EHLO + mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org + with ESMTP id S1752834AbaFTO2P (ORCPT + <rfc822;stable@vger.kernel.org>); Fri, 20 Jun 2014 10:28:15 -0400 +Received: by mail-pa0-f44.google.com with SMTP id rd3so3177765pab.17 + for <multiple recipients>; Fri, 20 Jun 2014 07:28:15 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=gmail.com; s=20120113; + h=from:to:cc:subject:date:message-id:in-reply-to:references; + bh=rsR1AnYOOFONegcKUuZzrIkP/Fwwpd8RySrcXDcatYE=; + b=H8hEI3Sg3lQRMr4ADxJtNpRGhyOTkP+gFC3du64xhLqVHicLrvtD06Wz7Vv0AowO52 + JpoocTnE8lUQvSMqev+LIh83DoFZxvYqrWqv0815LcZATxquRCPfNw8py9uTm3o0ABIy + PhXPM7UO278Ov67fqu63akRwHfrgtd22iXkHcn68ZqbTvdfo/jJlMcgRVoysP8XNPoIV + FZ4uVsHsjcx77zgA6A8t22vG5eozHRabvcvyxAp8eC/GwSjlWRFN7ETD28w4muvZcbFm + PFDieDk7detiTEqFyXncStI0i81Ezun+IyWnPnI1EOqPXKLoFaUiyxmw6Z7iOWLs0166 + NLoA== +X-Received: by 10.68.193.100 with SMTP id hn4mr5166204pbc.50.1403274495186; + Fri, 20 Jun 2014 07:28:15 -0700 (PDT) +Received: from echolake.localdomain (static-50-43-41-81.bvtn.or.frontiernet.net. [50.43.41.81]) + by mx.google.com with ESMTPSA id vx10sm44287848pac.17.2014.06.20.07.28.13 + for <multiple recipients> + (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); + Fri, 20 Jun 2014 07:28:13 -0700 (PDT) +From: dirk.brandewie@gmail.com +X-Google-Original-From: dirk.j.brandewie@intel.com +To: linux-pm@vger.kernel.org +Cc: rjw@rjwysocki.net, dirk.brandewie@gmail.com, + stable@vger.kernel.org, Dirk Brandewie <dirk.j.brandewie@intel.com> +Subject: [PATCH 3/3] intel_pstate: Update documentation of {max,min}_perf_pct sysfs files +Date: Fri, 20 Jun 2014 07:28:00 -0700 +Message-Id: <1403274480-10593-4-git-send-email-dirk.j.brandewie@intel.com> +X-Mailer: git-send-email 1.9.0 +In-Reply-To: <1403274480-10593-1-git-send-email-dirk.j.brandewie@intel.com> +References: <1403274480-10593-1-git-send-email-dirk.j.brandewie@intel.com> +Sender: stable-owner@vger.kernel.org +Precedence: bulk +List-ID: <stable.vger.kernel.org> +X-Mailing-List: stable@vger.kernel.org + +From: Dirk Brandewie <dirk.j.brandewie@intel.com> + +Update documentation to make the interpretation of the values clearer + +References: https://bugzilla.kernel.org/show_bug.cgi?id=64251 + +Cc: Stable <stable@vger.kernel.org> [3.13+] +Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> +--- + Documentation/cpu-freq/intel-pstate.txt | 7 +++++-- + 1 file changed, 5 insertions(+), 2 deletions(-) + +diff --git a/Documentation/cpu-freq/intel-pstate.txt b/Documentation/cpu-freq/intel-pstate.txt +index e742d21..a69ffe1 100644 +--- a/Documentation/cpu-freq/intel-pstate.txt ++++ b/Documentation/cpu-freq/intel-pstate.txt +@@ -15,10 +15,13 @@ New sysfs files for controlling P state selection have been added to + /sys/devices/system/cpu/intel_pstate/ + + max_perf_pct: limits the maximum P state that will be requested by +- the driver stated as a percentage of the available performance. ++ the driver stated as a percentage of the available performance. The ++ available (P states) performance may be reduced by the no_turbo ++ setting described below. + + min_perf_pct: limits the minimum P state that will be requested by +- the driver stated as a percentage of the available performance. ++ the driver stated as a percentage of the max (non-turbo) ++ performance level. + + no_turbo: limits the driver to selecting P states below the turbo + frequency range. +-- +1.9.0 + +-- +To unsubscribe from this list: send the line "unsubscribe stable" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/intel_pstate-dont-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch b/intel_pstate-dont-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch new file mode 100644 index 00000000..5d66cbb8 --- /dev/null +++ b/intel_pstate-dont-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch @@ -0,0 +1,163 @@ + +Delivered-To: jwboyer@gmail.com +Received: by 10.76.6.212 with SMTP id d20csp423277oaa; + Fri, 20 Jun 2014 07:30:35 -0700 (PDT) +X-Received: by 10.68.139.36 with SMTP id qv4mr5223355pbb.82.1403274634649; + Fri, 20 Jun 2014 07:30:34 -0700 (PDT) +Return-Path: <stable-owner@vger.kernel.org> +Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) + by mx.google.com with ESMTP id qv2si9954447pbb.188.2014.06.20.07.29.40 + for <multiple recipients>; + Fri, 20 Jun 2014 07:30:34 -0700 (PDT) +Received-SPF: none (google.com: stable-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; +Authentication-Results: mx.google.com; + spf=neutral (google.com: stable-owner@vger.kernel.org does not designate permitted sender hosts) smtp.mail=stable-owner@vger.kernel.org; + dkim=neutral (body hash did not verify) header.i=@; + dmarc=fail (p=NONE dis=NONE) header.from=gmail.com +Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand + id S1752836AbaFTO2P (ORCPT <rfc822;tuffkidtt@gmail.com> + 73 others); + Fri, 20 Jun 2014 10:28:15 -0400 +Received: from mail-pb0-f51.google.com ([209.85.160.51]:46198 "EHLO + mail-pb0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org + with ESMTP id S1752834AbaFTO2N (ORCPT + <rfc822;stable@vger.kernel.org>); Fri, 20 Jun 2014 10:28:13 -0400 +Received: by mail-pb0-f51.google.com with SMTP id rp16so3192728pbb.10 + for <multiple recipients>; Fri, 20 Jun 2014 07:28:13 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=gmail.com; s=20120113; + h=from:to:cc:subject:date:message-id:in-reply-to:references; + bh=d4snuLkO7yJL099uI4N/+0VV5Rt4O8Cw+AAMmj8igq8=; + b=Hmy0dMfQu3uRTZzAq3zGf2sfVMhRUxySItx4tChAq3aaQAehBA+1vqEHeiQ6ZNpXrD + BJfbmvByR/d4G55woGKZbyOPL/t5XzkVVUuefHgKvEDjWbHns/RYax+lgRFI4Cb1aLEe + 4u1/8cZ29BpFQ/yVW2D6/K6uwcJ6MQRK8lZISKjf/9oxZLg6vEeR4JGC70qo6yDHeUlu + VUQ3RrvKJ7NQw2nXTxAPuAvNEd+JCbKp6zO6gi6jET5vAQnevlrx+LxMjKssXI+QjXsH + N11ImMdOmbmBUgEIkFctpViP+fOFMTfkwIMh05FSQZtcy3NVF5kEUHR8N3B2klbGBYln + TJ8w== +X-Received: by 10.68.133.163 with SMTP id pd3mr5111437pbb.166.1403274493273; + Fri, 20 Jun 2014 07:28:13 -0700 (PDT) +Received: from echolake.localdomain (static-50-43-41-81.bvtn.or.frontiernet.net. [50.43.41.81]) + by mx.google.com with ESMTPSA id vx10sm44287848pac.17.2014.06.20.07.28.11 + for <multiple recipients> + (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); + Fri, 20 Jun 2014 07:28:12 -0700 (PDT) +From: dirk.brandewie@gmail.com +X-Google-Original-From: dirk.j.brandewie@intel.com +To: linux-pm@vger.kernel.org +Cc: rjw@rjwysocki.net, dirk.brandewie@gmail.com, + stable@vger.kernel.org, Dirk Brandewie <dirk.j.brandewie@intel.com> +Subject: [PATCH 2/3] intel_pstate: don't touch turbo bit if turbo disabled or unavailable. +Date: Fri, 20 Jun 2014 07:27:59 -0700 +Message-Id: <1403274480-10593-3-git-send-email-dirk.j.brandewie@intel.com> +X-Mailer: git-send-email 1.9.0 +In-Reply-To: <1403274480-10593-1-git-send-email-dirk.j.brandewie@intel.com> +References: <1403274480-10593-1-git-send-email-dirk.j.brandewie@intel.com> +Sender: stable-owner@vger.kernel.org +Precedence: bulk +List-ID: <stable.vger.kernel.org> +X-Mailing-List: stable@vger.kernel.org + +From: Dirk Brandewie <dirk.j.brandewie@intel.com> + +If turbo is disabled in the BIOS bit 38 should be set in +MSR_IA32_MISC_ENABLE register per section 14.3.2.1 of the SDM Vol 3 +document 325384-050US Feb 2014. If this bit is set do *not* attempt +to disable trubo via the MSR_IA32_PERF_CTL register. On some systems +trying to disable turbo via MSR_IA32_PERF_CTL will cause subsequent +writes to MSR_IA32_PERF_CTL not take affect, in fact reading +MSR_IA32_PERF_CTL will not show the IDA/Turbo DISENGAGE bit(32) as +set. A write of bit 32 to zero returns to normal operation. + +Also deal with the case where the processor does not support +turbo and the BIOS does not report the fact in MSR_IA32_MISC_ENABLE +but does report the max and turbo P states as the same value. + +References: https://bugzilla.kernel.org/show_bug.cgi?id=64251 + +Cc: Stable <stable@vger.kernel.org> [3.13+] +Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> +--- + drivers/cpufreq/intel_pstate.c | 22 ++++++++++++++++------ + 1 file changed, 16 insertions(+), 6 deletions(-) + +diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c +index 74376d6..127ead8 100644 +--- a/drivers/cpufreq/intel_pstate.c ++++ b/drivers/cpufreq/intel_pstate.c +@@ -128,6 +128,7 @@ static struct pstate_funcs pstate_funcs; + + struct perf_limits { + int no_turbo; ++ int turbo_disabled; + int max_perf_pct; + int min_perf_pct; + int32_t max_perf; +@@ -287,7 +288,10 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b, + if (ret != 1) + return -EINVAL; + limits.no_turbo = clamp_t(int, input, 0 , 1); +- ++ if (limits.turbo_disabled) { ++ pr_warn("Turbo disabled by BIOS or unavailable on processor\n"); ++ limits.no_turbo = limits.turbo_disabled; ++ } + return count; + } + +@@ -381,7 +385,7 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate) + u32 vid; + + val = pstate << 8; +- if (limits.no_turbo) ++ if (limits.no_turbo && !limits.turbo_disabled) + val |= (u64)1 << 32; + + vid_fp = cpudata->vid.min + mul_fp( +@@ -448,7 +452,7 @@ static void core_set_pstate(struct cpudata *cpudata, int pstate) + u64 val; + + val = pstate << 8; +- if (limits.no_turbo) ++ if (limits.no_turbo && !limits.turbo_disabled) + val |= (u64)1 << 32; + + wrmsrl_on_cpu(cpudata->cpu, MSR_IA32_PERF_CTL, val); +@@ -741,7 +745,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) + limits.min_perf = int_tofp(1); + limits.max_perf_pct = 100; + limits.max_perf = int_tofp(1); +- limits.no_turbo = 0; ++ limits.no_turbo = limits.turbo_disabled; + return 0; + } + limits.min_perf_pct = (policy->min * 100) / policy->cpuinfo.max_freq; +@@ -784,6 +788,7 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy) + { + struct cpudata *cpu; + int rc; ++ u64 misc_en; + + rc = intel_pstate_init_cpu(policy->cpu); + if (rc) +@@ -791,8 +796,13 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy) + + cpu = all_cpu_data[policy->cpu]; + +- if (!limits.no_turbo && +- limits.min_perf_pct == 100 && limits.max_perf_pct == 100) ++ rdmsrl(MSR_IA32_MISC_ENABLE, misc_en); ++ if (misc_en & MSR_IA32_MISC_ENABLE_TURBO_DISABLE || ++ cpu->pstate.max_pstate == cpu->pstate.turbo_pstate) { ++ limits.turbo_disabled = 1; ++ limits.no_turbo = 1; ++ } ++ if (limits.min_perf_pct == 100 && limits.max_perf_pct == 100) + policy->policy = CPUFREQ_POLICY_PERFORMANCE; + else + policy->policy = CPUFREQ_POLICY_POWERSAVE; +-- +1.9.0 + +-- +To unsubscribe from this list: send the line "unsubscribe stable" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/kernel.spec b/kernel.spec index be140028..4f11a814 100644 --- a/kernel.spec +++ b/kernel.spec @@ -40,7 +40,7 @@ Summary: The Linux kernel # For non-released -rc kernels, this will be appended after the rcX and # gitX tags, so a 3 here would become part of release "0.rcX.gitX.3" # -%global baserelease 1 +%global baserelease 2 %global fedora_build %{baserelease} # base_sublevel is the kernel version we're starting with and patching @@ -633,6 +633,10 @@ Patch26005: eeepc-wmi-Add-no-backlight-quirk-for-Asus-H87I-PLUS-.patch Patch26013: acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch Patch26014: acpi-video-Add-use_native_backlight-quirk-for-HP-Pro.patch +Patch25102: intel_pstate-Fix-setting-VID.patch +Patch25103: intel_pstate-dont-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch +Patch25104: intel_pstate-Update-documentation-of-max-min_perf_pct-sysfs-files.patch + # END OF PATCH DEFINITIONS %endif @@ -1345,6 +1349,10 @@ ApplyPatch eeepc-wmi-Add-no-backlight-quirk-for-Asus-H87I-PLUS-.patch ApplyPatch acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch ApplyPatch acpi-video-Add-use_native_backlight-quirk-for-HP-Pro.patch +ApplyPatch intel_pstate-Fix-setting-VID.patch +ApplyPatch intel_pstate-dont-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch +ApplyPatch intel_pstate-Update-documentation-of-max-min_perf_pct-sysfs-files.patch + # END OF PATCH APPLICATIONS %endif @@ -2217,6 +2225,9 @@ fi # ||----w | # || || %changelog +* Fri Jun 20 2014 Josh Boyer <jwboyer@fedoraproject.org> +- Bring in intel_pstate regression fixes for BayTrail + * Fri Jun 20 2014 Josh Boyer <jwboyer@fedoraproject.org> - 3.16.0-0.rc1.git4.1 - Linux v3.16-rc1-215-g3c8fb5044583 |