From patchwork Mon Nov 2 17:34:32 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: plongepe X-Patchwork-Id: 7537601 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 57CCEBEEA4 for ; Mon, 2 Nov 2015 17:33:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3681C2062B for ; Mon, 2 Nov 2015 17:33:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2A19C205DC for ; Mon, 2 Nov 2015 17:33:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752306AbbKBRdj (ORCPT ); Mon, 2 Nov 2015 12:33:39 -0500 Received: from mga03.intel.com ([134.134.136.65]:28520 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752134AbbKBRdi (ORCPT ); Mon, 2 Nov 2015 12:33:38 -0500 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP; 02 Nov 2015 09:33:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,234,1444719600"; d="scan'208";a="825084310" Received: from tllab185.tl.intel.com ([10.102.161.157]) by fmsmga001.fm.intel.com with ESMTP; 02 Nov 2015 09:33:37 -0800 From: Philippe Longepe To: linux-pm@vger.kernel.org Cc: srinivas.pandruvada@linux.intel.com, Stephane Gasparini Subject: [PATCH 1/2] cpufreq: intel_pstate: Replace BYT by ATOM Date: Mon, 2 Nov 2015 18:34:32 +0100 Message-Id: <1446485673-12985-1-git-send-email-philippe.longepe@linux.intel.com> X-Mailer: git-send-email 1.9.1 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 The goal is to support several Atoms architectures. Signed-off-by: Philippe Longepe Signed-off-by: Stephane Gasparini --- drivers/cpufreq/intel_pstate.c | 58 +++++++++++++++++++++--------------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 93a3c63..13cd8a9 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -38,10 +38,10 @@ #include #endif -#define BYT_RATIOS 0x66a -#define BYT_VIDS 0x66b -#define BYT_TURBO_RATIOS 0x66c -#define BYT_TURBO_VIDS 0x66d +#define ATOM_RATIOS 0x66a +#define ATOM_VIDS 0x66b +#define ATOM_TURBO_RATIOS 0x66c +#define ATOM_TURBO_VIDS 0x66d #define FRAC_BITS 8 #define int_tofp(X) ((int64_t)(X) << FRAC_BITS) @@ -689,31 +689,31 @@ static void intel_pstate_hwp_enable(struct cpudata *cpudata) wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); } -static int byt_get_min_pstate(void) +static int atom_get_min_pstate(void) { u64 value; - rdmsrl(BYT_RATIOS, value); + rdmsrl(ATOM_RATIOS, value); return (value >> 8) & 0x7F; } -static int byt_get_max_pstate(void) +static int atom_get_max_pstate(void) { u64 value; - rdmsrl(BYT_RATIOS, value); + rdmsrl(ATOM_RATIOS, value); return (value >> 16) & 0x7F; } -static int byt_get_turbo_pstate(void) +static int atom_get_turbo_pstate(void) { u64 value; - rdmsrl(BYT_TURBO_RATIOS, value); + rdmsrl(ATOM_TURBO_RATIOS, value); return value & 0x7F; } -static void byt_set_pstate(struct cpudata *cpudata, int pstate) +static void atom_set_pstate(struct cpudata *cpudata, int pstate) { u64 val; int32_t vid_fp; @@ -738,10 +738,10 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate) wrmsrl_on_cpu(cpudata->cpu, MSR_IA32_PERF_CTL, val); } -#define BYT_BCLK_FREQS 5 -static int byt_freq_table[BYT_BCLK_FREQS] = { 833, 1000, 1333, 1167, 800}; +#define ATOM_BCLK_FREQS 5 +static int atom_freq_table[ATOM_BCLK_FREQS] = { 833, 1000, 1333, 1167, 800}; -static int byt_get_scaling(void) +static int atom_get_scaling(void) { u64 value; int i; @@ -749,16 +749,16 @@ static int byt_get_scaling(void) rdmsrl(MSR_FSB_FREQ, value); i = value & 0x3; - BUG_ON(i > BYT_BCLK_FREQS); + BUG_ON(i > ATOM_BCLK_FREQS); - return byt_freq_table[i] * 100; + return atom_freq_table[i] * 100; } -static void byt_get_vid(struct cpudata *cpudata) +static void atom_get_vid(struct cpudata *cpudata) { u64 value; - rdmsrl(BYT_VIDS, value); + rdmsrl(ATOM_VIDS, value); cpudata->vid.min = int_tofp((value >> 8) & 0x7f); cpudata->vid.max = int_tofp((value >> 16) & 0x7f); cpudata->vid.ratio = div_fp( @@ -766,7 +766,7 @@ static void byt_get_vid(struct cpudata *cpudata) int_tofp(cpudata->pstate.max_pstate - cpudata->pstate.min_pstate)); - rdmsrl(BYT_TURBO_VIDS, value); + rdmsrl(ATOM_TURBO_VIDS, value); cpudata->vid.turbo = value & 0x7f; } @@ -887,7 +887,7 @@ static struct cpu_defaults core_params = { }, }; -static struct cpu_defaults byt_params = { +static struct cpu_defaults atom_params = { .pid_policy = { .sample_rate_ms = 10, .deadband = 0, @@ -897,13 +897,13 @@ static struct cpu_defaults byt_params = { .i_gain_pct = 4, }, .funcs = { - .get_max = byt_get_max_pstate, - .get_max_physical = byt_get_max_pstate, - .get_min = byt_get_min_pstate, - .get_turbo = byt_get_turbo_pstate, - .set = byt_set_pstate, - .get_scaling = byt_get_scaling, - .get_vid = byt_get_vid, + .get_max = atom_get_max_pstate, + .get_max_physical = atom_get_max_pstate, + .get_min = atom_get_min_pstate, + .get_turbo = atom_get_turbo_pstate, + .set = atom_set_pstate, + .get_scaling = atom_get_scaling, + .get_vid = atom_get_vid, }, }; @@ -1155,7 +1155,7 @@ static void intel_pstate_timer_func(unsigned long __data) static const struct x86_cpu_id intel_pstate_cpu_ids[] = { ICPU(0x2a, core_params), ICPU(0x2d, core_params), - ICPU(0x37, byt_params), + ICPU(0x37, atom_params), ICPU(0x3a, core_params), ICPU(0x3c, core_params), ICPU(0x3d, core_params), @@ -1164,7 +1164,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = { ICPU(0x45, core_params), ICPU(0x46, core_params), ICPU(0x47, core_params), - ICPU(0x4c, byt_params), + ICPU(0x4c, atom_params), ICPU(0x4e, core_params), ICPU(0x4f, core_params), ICPU(0x5e, core_params),