Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422663AbaDKRNJ (ORCPT ); Fri, 11 Apr 2014 13:13:09 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:56306 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754456AbaDKQH1 (ORCPT ); Fri, 11 Apr 2014 12:07:27 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mikulas Patocka , Viresh Kumar , "Rafael J. Wysocki" Subject: [PATCH 3.10 04/41] powernow-k6: reorder frequencies Date: Fri, 11 Apr 2014 09:09:35 -0700 Message-Id: <20140411160933.178949387@linuxfoundation.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <20140411160932.865173041@linuxfoundation.org> References: <20140411160932.865173041@linuxfoundation.org> User-Agent: quilt/0.60-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mikulas Patocka commit 22c73795b101597051924556dce019385a1e2fa0 upstream. This patch reorders reported frequencies from the highest to the lowest, just like in other frequency drivers. Signed-off-by: Mikulas Patocka Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/cpufreq/powernow-k6.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -37,17 +37,20 @@ MODULE_PARM_DESC(bus_frequency, "Bus fre /* Clock ratio multiplied by 10 - see table 27 in AMD#23446 */ static struct cpufreq_frequency_table clock_ratio[] = { - {45, /* 000 -> 4.5x */ 0}, + {60, /* 110 -> 6.0x */ 0}, + {55, /* 011 -> 5.5x */ 0}, {50, /* 001 -> 5.0x */ 0}, + {45, /* 000 -> 4.5x */ 0}, {40, /* 010 -> 4.0x */ 0}, - {55, /* 011 -> 5.5x */ 0}, - {20, /* 100 -> 2.0x */ 0}, - {30, /* 101 -> 3.0x */ 0}, - {60, /* 110 -> 6.0x */ 0}, {35, /* 111 -> 3.5x */ 0}, + {30, /* 101 -> 3.0x */ 0}, + {20, /* 100 -> 2.0x */ 0}, {0, CPUFREQ_TABLE_END} }; +static const u8 index_to_register[8] = { 6, 3, 1, 0, 2, 7, 5, 4 }; +static const u8 register_to_index[8] = { 3, 2, 4, 1, 7, 6, 0, 5 }; + static const struct { unsigned freq; unsigned mult; @@ -91,7 +94,7 @@ static int powernow_k6_get_cpu_multiplie local_irq_enable(); - return clock_ratio[(invalue >> 5)&7].index; + return clock_ratio[register_to_index[(invalue >> 5)&7]].index; } static void powernow_k6_set_cpu_multiplier(unsigned int best_i) @@ -111,7 +114,7 @@ static void powernow_k6_set_cpu_multipli write_cr0(cr0 | X86_CR0_CD); wbinvd(); - outvalue = (1<<12) | (1<<10) | (1<<9) | (best_i<<5); + outvalue = (1<<12) | (1<<10) | (1<<9) | (index_to_register[best_i]<<5); msrval = POWERNOW_IOPORT + 0x1; wrmsr(MSR_K6_EPMR, msrval, 0); /* enable the PowerNow port */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/