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[71.184.142.167]) by smtp.gmail.com with ESMTPSA id n68sm3595257ywd.52.2016.03.23.22.16.36 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 23 Mar 2016 22:16:37 -0700 (PDT) From: Len Brown To: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Dasaratharaman Chandramouli , Micah Barany , Hubert Chrzaniuk , Pawel Karczewski , Len Brown Subject: [PATCH 2/2] intel_idle: Support for Intel Xeon Phi Processor x200 Product Family Date: Thu, 24 Mar 2016 01:16:02 -0400 Message-Id: <281baf7a702693deaa45c98ef0c5161006b48257.1458796304.git.len.brown@intel.com> X-Mailer: git-send-email 2.7.1.339.g0233b80 In-Reply-To: <1458796562-19744-1-git-send-email-lenb@kernel.org> References: <1458796562-19744-1-git-send-email-lenb@kernel.org> In-Reply-To: References: Reply-To: Len Brown Organization: Intel Open Source Technology Center Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_BL_SPAMCOP_NET, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dasaratharaman Chandramouli Enables "Intel(R) Xeon Phi(TM) Processor x200 Product Family" support, formerly code-named KNL. It is based on modified Intel Atom Silvermont microarchitecture. Signed-off-by: Dasaratharaman Chandramouli [micah.barany@intel.com: adjusted values of residency and latency] Signed-off-by: Micah Barany [hubert.chrzaniuk@intel.com: removed deprecated CPUIDLE_FLAG_TIME_VALID flag] Signed-off-by: Hubert Chrzaniuk Signed-off-by: Pawel Karczewski Signed-off-by: Len Brown --- drivers/idle/intel_idle.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 146eed70b..ba947df 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -716,6 +716,26 @@ static struct cpuidle_state avn_cstates[] = { { .enter = NULL } }; +static struct cpuidle_state knl_cstates[] = { + { + .name = "C1-KNL", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00), + .exit_latency = 1, + .target_residency = 2, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze }, + { + .name = "C6-KNL", + .desc = "MWAIT 0x10", + .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 120, + .target_residency = 500, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze }, + { + .enter = NULL } +}; /** * intel_idle @@ -890,6 +910,10 @@ static const struct idle_cpu idle_cpu_avn = { .disable_promotion_to_c1e = true, }; +static const struct idle_cpu idle_cpu_knl = { + .state_table = knl_cstates, +}; + #define ICPU(model, cpu) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu } @@ -921,6 +945,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = { ICPU(0x56, idle_cpu_bdw), ICPU(0x4e, idle_cpu_skl), ICPU(0x5e, idle_cpu_skl), + ICPU(0x57, idle_cpu_knl), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);