X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Facpi%2Fprocessor_perflib.c;h=c4efc0c17f8f3029d244962be92482b30e36bcb4;hb=5335a40be6867eff986a31bcd8fc82a5cb1e16bb;hp=cbb6f0814ce2dc706cb6b85e7ab3ae96b5d23e2e;hpb=88d5a7bb75b5e8f600e79b16abaf008c7fdfd27d;p=powerpc.git

diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index cbb6f0814c..c4efc0c17f 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -44,10 +44,9 @@
 
 #define ACPI_PROCESSOR_COMPONENT	0x01000000
 #define ACPI_PROCESSOR_CLASS		"processor"
-#define ACPI_PROCESSOR_DRIVER_NAME	"ACPI Processor Driver"
 #define ACPI_PROCESSOR_FILE_PERFORMANCE	"performance"
 #define _COMPONENT		ACPI_PROCESSOR_COMPONENT
-ACPI_MODULE_NAME("acpi_processor")
+ACPI_MODULE_NAME("processor_perflib");
 
 static DEFINE_MUTEX(performance_mutex);
 
@@ -352,31 +351,24 @@ int acpi_processor_notify_smm(struct module *calling_module)
 
 	is_done = -EIO;
 
-	/* Can't write pstate_cnt to smi_cmd if either value is zero */
-	if ((!acpi_fadt.smi_cmd) || (!acpi_fadt.pstate_cnt)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No SMI port or pstate_cnt\n"));
+	/* Can't write pstate_control to smi_command if either value is zero */
+	if ((!acpi_gbl_FADT.smi_command) || (!acpi_gbl_FADT.pstate_control)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No SMI port or pstate_control\n"));
 		module_put(calling_module);
 		return 0;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Writing pstate_cnt [0x%x] to smi_cmd [0x%x]\n",
-			  acpi_fadt.pstate_cnt, acpi_fadt.smi_cmd));
+			  "Writing pstate_control [0x%x] to smi_command [0x%x]\n",
+			  acpi_gbl_FADT.pstate_control, acpi_gbl_FADT.smi_command));
 
-	/* FADT v1 doesn't support pstate_cnt, many BIOS vendors use
-	 * it anyway, so we need to support it... */
-	if (acpi_fadt_is_v1) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Using v1.0 FADT reserved value for pstate_cnt\n"));
-	}
-
-	status = acpi_os_write_port(acpi_fadt.smi_cmd,
-				    (u32) acpi_fadt.pstate_cnt, 8);
+	status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+				    (u32) acpi_gbl_FADT.pstate_control, 8);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
-				"Failed to write pstate_cnt [0x%x] to "
-				"smi_cmd [0x%x]", acpi_fadt.pstate_cnt,
-				acpi_fadt.smi_cmd));
+				"Failed to write pstate_control [0x%x] to "
+				"smi_command [0x%x]", acpi_gbl_FADT.pstate_control,
+				acpi_gbl_FADT.smi_command));
 		module_put(calling_module);
 		return status;
 	}
@@ -441,49 +433,6 @@ static int acpi_processor_perf_open_fs(struct inode *inode, struct file *file)
 			   PDE(inode)->data);
 }
 
-static ssize_t
-acpi_processor_write_performance(struct file *file,
-				 const char __user * buffer,
-				 size_t count, loff_t * data)
-{
-	int result = 0;
-	struct seq_file *m = file->private_data;
-	struct acpi_processor *pr = m->private;
-	struct acpi_processor_performance *perf;
-	char state_string[12] = { '\0' };
-	unsigned int new_state = 0;
-	struct cpufreq_policy policy;
-
-
-	if (!pr || (count > sizeof(state_string) - 1))
-		return -EINVAL;
-
-	perf = pr->performance;
-	if (!perf)
-		return -EINVAL;
-
-	if (copy_from_user(state_string, buffer, count))
-		return -EFAULT;
-
-	state_string[count] = '\0';
-	new_state = simple_strtoul(state_string, NULL, 0);
-
-	if (new_state >= perf->state_count)
-		return -EINVAL;
-
-	cpufreq_get_policy(&policy, pr->id);
-
-	policy.cpu = pr->id;
-	policy.min = perf->states[new_state].core_frequency * 1000;
-	policy.max = perf->states[new_state].core_frequency * 1000;
-
-	result = cpufreq_set_policy(&policy);
-	if (result)
-		return result;
-
-	return count;
-}
-
 static void acpi_cpufreq_add_file(struct acpi_processor *pr)
 {
 	struct proc_dir_entry *entry = NULL;
@@ -495,10 +444,9 @@ static void acpi_cpufreq_add_file(struct acpi_processor *pr)
 
 	/* add file 'performance' [R/W] */
 	entry = create_proc_entry(ACPI_PROCESSOR_FILE_PERFORMANCE,
-				  S_IFREG | S_IRUGO | S_IWUSR,
+				  S_IFREG | S_IRUGO,
 				  acpi_device_dir(device));
 	if (entry){
-		acpi_processor_perf_fops.write = acpi_processor_write_performance;
 		entry->proc_fops = &acpi_processor_perf_fops;
 		entry->data = acpi_driver_data(device);
 		entry->owner = THIS_MODULE;