{"id":807431,"url":"http://patchwork.ozlabs.org/api/1.0/patches/807431/?format=json","project":{"id":44,"url":"http://patchwork.ozlabs.org/api/1.0/projects/44/?format=json","name":"skiboot firmware development","link_name":"skiboot","list_id":"skiboot.lists.ozlabs.org","list_email":"skiboot@lists.ozlabs.org","web_url":"http://github.com/open-power/skiboot","scm_url":"http://github.com/open-power/skiboot","webscm_url":""},"msgid":"<20170830062011.15199-2-npiggin@gmail.com>","date":"2017-08-30T06:20:09","name":"[1/3] idle: user context state loss flags fix for stop states","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"e26a9d73308c7b7b4e77f0da3652ac0c27dbf8d6","submitter":{"id":69518,"url":"http://patchwork.ozlabs.org/api/1.0/people/69518/?format=json","name":"Nicholas Piggin","email":"npiggin@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/skiboot/patch/20170830062011.15199-2-npiggin@gmail.com/mbox/","series":[{"id":532,"url":"http://patchwork.ozlabs.org/api/1.0/series/532/?format=json","date":"2017-08-30T06:20:08","name":"misc idle fixes","version":1,"mbox":"http://patchwork.ozlabs.org/series/532/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/807431/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","skiboot@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","skiboot@lists.ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xhwPG2sZMz9t16\n\tfor ;\n\tWed, 30 Aug 2017 16:21:06 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xhwPG1cS2zDqLv\n\tfor ;\n\tWed, 30 Aug 2017 16:21:06 +1000 (AEST)","from mail-pf0-x242.google.com (mail-pf0-x242.google.com\n\t[IPv6:2607:f8b0:400e:c00::242])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xhwNn3J8WzDqGG\n\tfor ; Wed, 30 Aug 2017 16:20:41 +1000 (AEST)","by mail-pf0-x242.google.com with SMTP id p69so3753408pfk.1\n\tfor ; Tue, 29 Aug 2017 23:20:41 -0700 (PDT)","from roar.au.ibm.com (203-219-56-202.tpgi.com.au. [203.219.56.202])\n\tby smtp.gmail.com with ESMTPSA id\n\t82sm8266783pgb.86.2017.08.29.23.20.36\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tTue, 29 Aug 2017 23:20:38 -0700 (PDT)"],"Authentication-Results":["ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"jhpsQHXc\"; dkim-atps=neutral","lists.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"jhpsQHXc\"; dkim-atps=neutral","lists.ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"jhpsQHXc\"; dkim-atps=neutral"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=jODU76LUB78VQXhiGv9Xw7819GyuPi+UxhrYSW2PHMg=;\n\tb=jhpsQHXc1i0NERvxaxaTRmtPewX7dCrBM9jlpLO8tPUoeb8JqdAeOGN86ldlSRw7Vw\n\tabo1nexiWnt7zxnUpOVizcGeSwM2xagWAaNM3tmYX7OPb7xE+Zt4kscjXP8/1T6tiSmU\n\tYhkCsy6LNV1aMuVOfUoHklEjs4zBpAdvEnkSC5fvxKnWScUxrndjTu+hRLfEWi3XjR9w\n\tb+BAHzqzrRyqid0a0tkfBzEz8EPwI3Hbu2qI+5r8w6o4f4EHicklahQf/i7aMDWsLBU6\n\tyzTRSY3tuzey8Rx5T/OgWlq7lAegLX0KbLiwzYdrSVPh0cWcED0ro74J/jpnGqa/xa1a\n\t6IaQ==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=jODU76LUB78VQXhiGv9Xw7819GyuPi+UxhrYSW2PHMg=;\n\tb=HA7+qNxS5IJa+U+qEilVppdfoOjYz2lk6Whkgk8EAkvFYGKU0tbodGdf+i4KlmPcjM\n\tNMvY96f9AHr2PWVrldPJNGFUyPUqk8A++XbYEYDjx/4HgACIcYkyiTffHTHGE+CrzIu1\n\tOMX6gknJMK0khJ64Vx2Yx9//NOTSoKTY9dnJkDhNfeyv7PDocLRdkpjZAXEZD9FnXp+B\n\tlTAVoiLme9lnpT4H2VfPDQg6Jzh9/Jj4tTO3Y/7TWOo6ABykJ3q6Zbxw1B7wvlJMACND\n\t+kDvtBj99cSDxPAIFGkteen81s6Vszw8k84dd1VTlJi2FsoS4nBoMe277ZSqG9frksMm\n\tCjYw==","X-Gm-Message-State":"AHYfb5iaDQk2OacshVoH/1SmbNwbO0zEd7u1OtMnkawzIvpj6kPuNsnJ\n\taEoE+qWnOcRDPe3m","X-Received":"by 10.98.71.14 with SMTP id u14mr510316pfa.315.1504074039542;\n\tTue, 29 Aug 2017 23:20:39 -0700 (PDT)","From":"Nicholas Piggin ","To":"skiboot@lists.ozlabs.org","Date":"Wed, 30 Aug 2017 16:20:09 +1000","Message-Id":"<20170830062011.15199-2-npiggin@gmail.com>","X-Mailer":"git-send-email 2.13.3","In-Reply-To":"<20170830062011.15199-1-npiggin@gmail.com>","References":"<20170830062011.15199-1-npiggin@gmail.com>","Subject":"[Skiboot] [PATCH 1/3] idle: user context state loss flags fix for\n\tstop states","X-BeenThere":"skiboot@lists.ozlabs.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"Mailing list for skiboot development ","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"\"Gautham R . Shenoy\" ","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"skiboot-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org","Sender":"\"Skiboot\"\n\t"},"content":"The \"lite\" stop variants with PSSCR[ESL]=PSSCR[EC]=1 do not lose user\ncontext, while the non-lite variants do (ESL: enable state loss).\n\nSome of the POWER9 idle states had these wrong.\n\nThese are not used by Linux yet.\n\nSigned-off-by: Nicholas Piggin \n---\n hw/slw.c | 8 ++++----\n 1 file changed, 4 insertions(+), 4 deletions(-)","diff":"diff --git a/hw/slw.c b/hw/slw.c\nindex 98040e6e..0720545c 100644\n--- a/hw/slw.c\n+++ b/hw/slw.c\n@@ -526,7 +526,7 @@ static struct cpu_idle_states power9_cpu_idle_states[] = {\n \t\t.residency_ns = 20000,\n \t\t.flags = 0*OPAL_PM_DEC_STOP \\\n \t\t | 0*OPAL_PM_TIMEBASE_STOP \\\n-\t\t | 0*OPAL_PM_LOSE_USER_CONTEXT \\\n+\t\t | 1*OPAL_PM_LOSE_USER_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_HYP_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_FULL_CONTEXT \\\n \t\t | 1*OPAL_PM_STOP_INST_FAST,\n@@ -542,7 +542,7 @@ static struct cpu_idle_states power9_cpu_idle_states[] = {\n \t\t.residency_ns = 49000,\n \t\t.flags = 0*OPAL_PM_DEC_STOP \\\n \t\t | 0*OPAL_PM_TIMEBASE_STOP \\\n-\t\t | 1*OPAL_PM_LOSE_USER_CONTEXT \\\n+\t\t | 0*OPAL_PM_LOSE_USER_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_HYP_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_FULL_CONTEXT \\\n \t\t | 1*OPAL_PM_STOP_INST_FAST,\n@@ -572,7 +572,7 @@ static struct cpu_idle_states power9_cpu_idle_states[] = {\n \t\t.residency_ns = 99000,\n \t\t.flags = 0*OPAL_PM_DEC_STOP \\\n \t\t | 0*OPAL_PM_TIMEBASE_STOP \\\n-\t\t | 1*OPAL_PM_LOSE_USER_CONTEXT \\\n+\t\t | 0*OPAL_PM_LOSE_USER_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_HYP_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_FULL_CONTEXT \\\n \t\t | 1*OPAL_PM_STOP_INST_FAST,\n@@ -671,7 +671,7 @@ static struct cpu_idle_states power9_ndd1_cpu_idle_states[] = {\n \t\t.residency_ns = 49000,\n \t\t.flags = 0*OPAL_PM_DEC_STOP \\\n \t\t | 0*OPAL_PM_TIMEBASE_STOP \\\n-\t\t | 1*OPAL_PM_LOSE_USER_CONTEXT \\\n+\t\t | 0*OPAL_PM_LOSE_USER_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_HYP_CONTEXT \\\n \t\t | 0*OPAL_PM_LOSE_FULL_CONTEXT \\\n \t\t | 1*OPAL_PM_STOP_INST_FAST,\n","prefixes":["1/3"]}