Attachment 294398 Details for Bug 430947 – RHEL5 version 2 fix for this patch

[patch] RHEL5 version 2 fix for this patch

version2.patch (text/plain), 1.63 KB, created by Prarit Bhargava on 2008-02-08 19:13:37 UTC

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Creator: Prarit Bhargava

Created: 2008-02-08 19:13:37 UTC

Size: 1.63 KB

patch

obsolete

>--- linux-2.6.18.x86_64.orig/arch/i386/kernel/cpu/cpufreq/powernow-k8.c	2008-02-06 13:36:44.000000000 -0500
>+++ linux-2.6.18.x86_64/arch/i386/kernel/cpu/cpufreq/powernow-k8.c	2008-02-08 13:32:33.000000000 -0500
>@@ -56,6 +56,7 @@ static DEFINE_MUTEX(fidvid_mutex);
> static struct powernow_k8_data *powernow_data[NR_CPUS];
> static int *req_state = NULL;
> static int tscsync = 0;
>+static int preregister_acpi_perf = 0;
> 
> static int cpu_family = CPU_OPTERON;
> 
>@@ -777,9 +778,9 @@ static void powernow_k8_acpi_pst_values(
> static struct acpi_processor_performance *acpi_perf_data[NR_CPUS];
> static int preregister_valid = 0;
> 
>-static int powernow_k8_cpu_preinit_acpi()
>+static int powernow_k8_cpu_preinit_acpi(void)
> {
>-	int i; 
>+	int i;
> 	struct acpi_processor_performance *data;
> 	for_each_possible_cpu(i) {
> 		data = kzalloc(sizeof(struct acpi_processor_performance),
>@@ -795,10 +796,14 @@ static int powernow_k8_cpu_preinit_acpi(
> 		acpi_perf_data[i] = data;
> 	}
> 
>-	if (acpi_processor_preregister_performance(acpi_perf_data))
>-		return -ENODEV;
>-	else 
>-		preregister_valid = 1;
>+	if (preregister_acpi_perf || cpu_family != CPU_OPTERON) {
>+		if (acpi_processor_preregister_performance(acpi_perf_data))
>+			return -ENODEV;
>+		else
>+			preregister_valid = 1;
>+	} else
>+		printk(KERN_INFO "Disabling ACPI pre-initialization.\n");
>+
> 	return 0;
> }
> 
>@@ -1460,3 +1465,6 @@ module_exit(powernowk8_exit);
> 
> module_param(tscsync, int, 0);
> MODULE_PARM_DESC(tscsync, "enable tsc by synchronizing powernow-k8 changes");
>+module_param(preregister_acpi_perf, int, 0);
>+MODULE_PARM_DESC(preregister_acpi_perf, "allow preregistering of performance"
>+		 " related ACPI data");

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Attachments on bug 430947: 294378 | 294398 | 295438 | 296644 | 297670