linux-kernel - [PATCH 2.6.19-rc5-mm2] cpufreq: set policy->curfreq on initialization

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Message-ID: <20061115190517.GA2449@inferi.kami.home>
Date:	Wed, 15 Nov 2006 20:05:17 +0100
From:	Mattia Dongili <malattia@...ux.it>
To:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	ego@...ibm.com, Reuben Farrelly <reuben-linuxkernel@...b.net>,
	Andrew Morton <akpm@...l.org>, davej@...hat.com,
	linux-kernel@...r.kernel.org,
	CPUFreq Mailing List <cpufreq@...ts.linux.org.uk>,
	"Sadykov, Denis M" <denis.m.sadykov@...el.com>
Subject: [PATCH 2.6.19-rc5-mm2] cpufreq: set policy->curfreq on initialization


Check the correct variable and set policy->cur upon acpi-cpufreq
initialization to allow the userspace governor to be used as default.

Signed-off-by: Mattia Dongili <malattia@...ux.it>

---

Reuben, could you also try if this patch fixes the BUG()?
Thanks

diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 18f4715..a630f94 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -699,14 +699,14 @@ static int acpi_cpufreq_cpu_init(struct
 	if (result)
 		goto err_freqfree;
 
-	switch (data->cpu_feature) {
+	switch (perf->control_register.space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_IO:
 		/* Current speed is unknown and not detectable by IO port */
 		policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
 		acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
-		get_cur_freq_on_cpu(cpu);
+		policy->cur = get_cur_freq_on_cpu(cpu);
 		break;
 	default:
 		break;
-
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