New patch set for kernel 2.6.38

(Portage version: 2.1.9.42/cvs/Linux x86_64)

3 files changed, 535 insertions, 3 deletions

diff --git a/sys-power/phc-intel/ChangeLog b/sys-power/phc-intel/ChangeLog
index 579b7640b14f..c3c9c31db52e 100644
--- a/sys-power/phc-intel/ChangeLog
+++ b/sys-power/phc-intel/ChangeLog
@@ -1,6 +1,10 @@
 # ChangeLog for sys-power/phc-intel
 # Copyright 1999-2011 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-power/phc-intel/ChangeLog,v 1.4 2011/01/05 19:19:13 xmw Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-power/phc-intel/ChangeLog,v 1.5 2011/03/16 23:19:43 xmw Exp $
+
+  16 Mar 2011; Michael Weber <xmw@gentoo.org> phc-intel-0.3.2.12.1-r2.ebuild,
+  +files/phc-intel-0.3.2.12.1-2.6.38.patch:
+  New patch set for kernel 2.6.38
 
   05 Jan 2011; Michael Weber <xmw@gentoo.org> phc-intel-0.3.2.12.1-r2.ebuild,
   +files/phc-intel-0.3.2.12.1-2.6.37.patch:
diff --git a/sys-power/phc-intel/files/phc-intel-0.3.2.12.1-2.6.38.patch b/sys-power/phc-intel/files/phc-intel-0.3.2.12.1-2.6.38.patch
new file mode 100644
index 000000000000..f5dd4f49b75f
--- /dev/null
+++ b/sys-power/phc-intel/files/phc-intel-0.3.2.12.1-2.6.38.patch
@@ -0,0 +1,528 @@
+--- linux-2.6.37-gentoo/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
++++ phc-intel-0.3.2-12-1/inc/2.6.37/acpi-cpufreq.c
+@@ -25,6 +25,10 @@
+  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  */
+ 
++/* This file has been patched with Linux PHC: www.linux-phc.org
++* Patch version: linux-phc-0.3.2
++*/
++
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/init.h>
+@@ -61,12 +65,17 @@
+ };
+ 
+ #define INTEL_MSR_RANGE		(0xffff)
++#define INTEL_MSR_VID_MASK	(0x00ff)
++#define INTEL_MSR_FID_MASK	(0xff00)
++#define INTEL_MSR_FID_SHIFT	(0x8)
++#define PHC_VERSION_STRING	"0.3.2:2"
+ 
+ struct acpi_cpufreq_data {
+ 	struct acpi_processor_performance *acpi_data;
+ 	struct cpufreq_frequency_table *freq_table;
+ 	unsigned int resume;
+ 	unsigned int cpu_feature;
++	acpi_integer *original_controls;
+ };
+ 
+ static DEFINE_PER_CPU(struct acpi_cpufreq_data *, acfreq_data);
+@@ -102,13 +111,14 @@
+ static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
+ {
+ 	int i;
++	u32 fid;
+ 	struct acpi_processor_performance *perf;
+ 
+-	msr &= INTEL_MSR_RANGE;
++	fid = msr & INTEL_MSR_FID_MASK;
+ 	perf = data->acpi_data;
+ 
+ 	for (i = 0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
+-		if (msr == perf->states[data->freq_table[i].index].status)
++		if (fid == (perf->states[data->freq_table[i].index].status & INTEL_MSR_FID_MASK))
+ 			return data->freq_table[i].frequency;
+ 	}
+ 	return data->freq_table[0].frequency;
+@@ -701,6 +711,8 @@
+ 		per_cpu(acfreq_data, policy->cpu) = NULL;
+ 		acpi_processor_unregister_performance(data->acpi_data,
+ 						      policy->cpu);
++		if (data->original_controls)
++			kfree(data->original_controls);
+ 		kfree(data->freq_table);
+ 		kfree(data);
+ 	}
+@@ -719,8 +731,470 @@
+ 	return 0;
+ }
+ 
++/* sysfs interface to change operating points voltages */
++
++static unsigned int extract_fid_from_control(unsigned int control)
++{
++	return ((control & INTEL_MSR_FID_MASK) >> INTEL_MSR_FID_SHIFT);
++}
++
++static unsigned int extract_vid_from_control(unsigned int control)
++{
++	return (control & INTEL_MSR_VID_MASK);
++}
++
++
++static bool check_cpu_control_capability(struct acpi_cpufreq_data *data) {
++ /* check if the cpu we are running on is capable of setting new control data
++  * 
++  */
++	if (unlikely(data == NULL || 
++	             data->acpi_data == NULL || 
++	             data->freq_table == NULL ||
++	             data->cpu_feature != SYSTEM_INTEL_MSR_CAPABLE)) {
++		return false;
++	} else {
++		return true;
++	};
++}
++
++
++static ssize_t check_origial_table (struct acpi_cpufreq_data *data)
++{
++
++	struct acpi_processor_performance *acpi_data;
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int state_index;
++
++	acpi_data = data->acpi_data;
++	freq_table = data->freq_table;
++
++	if (data->original_controls == NULL) {
++		// Backup original control values
++		data->original_controls = kcalloc(acpi_data->state_count,
++		                                  sizeof(acpi_integer), GFP_KERNEL);
++		if (data->original_controls == NULL) {
++			printk("failed to allocate memory for original control values\n");
++			return -ENOMEM;
++		}
++		for (state_index = 0; state_index < acpi_data->state_count; state_index++) {
++			data->original_controls[state_index] = acpi_data->states[state_index].control;
++		}
++	}
++	return 0;
++}
++
++static ssize_t show_freq_attr_vids(struct cpufreq_policy *policy, char *buf)
++ /* display phc's voltage id's
++  * 
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct acpi_processor_performance *acpi_data;
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int i;
++	unsigned int vid;
++	ssize_t count = 0;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls
++
++	acpi_data = data->acpi_data;
++	freq_table = data->freq_table;
++
++	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
++		vid = extract_vid_from_control(acpi_data->states[freq_table[i].index].control);
++		count += sprintf(&buf[count], "%u ", vid);
++	}
++	count += sprintf(&buf[count], "\n");
++
++	return count;
++}
++
++static ssize_t show_freq_attr_default_vids(struct cpufreq_policy *policy, char *buf)
++ /* display acpi's default voltage id's
++  * 
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int i;
++	unsigned int vid;
++	ssize_t count = 0;
++	ssize_t retval;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls
++
++	retval = check_origial_table(data);
++        if (0 != retval)
++		return retval; 
++
++	freq_table = data->freq_table;
++
++	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
++		vid = extract_vid_from_control(data->original_controls[freq_table[i].index]);
++		count += sprintf(&buf[count], "%u ", vid);
++	}
++	count += sprintf(&buf[count], "\n");
++
++	return count;
++}
++
++static ssize_t show_freq_attr_fids(struct cpufreq_policy *policy, char *buf)
++ /* display phc's frequeny id's
++  * 
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct acpi_processor_performance *acpi_data;
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int i;
++	unsigned int fid;
++	ssize_t count = 0;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls
++
++	acpi_data = data->acpi_data;
++	freq_table = data->freq_table;
++
++	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
++		fid = extract_fid_from_control(acpi_data->states[freq_table[i].index].control);
++		count += sprintf(&buf[count], "%u ", fid);
++	}
++	count += sprintf(&buf[count], "\n");
++
++	return count;
++}
++
++static ssize_t show_freq_attr_controls(struct cpufreq_policy *policy, char *buf)
++ /* display phc's controls for the cpu (frequency id's and related voltage id's)
++  * 
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct acpi_processor_performance *acpi_data;
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int i;
++	unsigned int fid;
++	unsigned int vid;
++	ssize_t count = 0;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls
++
++	acpi_data = data->acpi_data;
++	freq_table = data->freq_table;
++
++	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
++		fid = extract_fid_from_control(acpi_data->states[freq_table[i].index].control);
++		vid = extract_vid_from_control(acpi_data->states[freq_table[i].index].control);
++		count += sprintf(&buf[count], "%u:%u ", fid, vid);
++	}
++	count += sprintf(&buf[count], "\n");
++
++	return count;
++}
++
++static ssize_t show_freq_attr_default_controls(struct cpufreq_policy *policy, char *buf)
++ /* display acpi's default controls for the cpu (frequency id's and related voltage id's)
++  * 
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int i;
++	unsigned int fid;
++	unsigned int vid;
++	ssize_t count = 0;
++	ssize_t retval;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls
++
++	retval = check_origial_table(data);
++        if (0 != retval)
++		return retval; 
++
++	freq_table = data->freq_table;
++
++	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
++		fid = extract_fid_from_control(data->original_controls[freq_table[i].index]);
++		vid = extract_vid_from_control(data->original_controls[freq_table[i].index]);
++		count += sprintf(&buf[count], "%u:%u ", fid, vid);
++	}
++	count += sprintf(&buf[count], "\n");
++
++	return count;
++}
++
++
++static ssize_t store_freq_attr_vids(struct cpufreq_policy *policy, const char *buf, size_t count)
++ /* store the voltage id's for the related frequency
++  * We are going to do some sanity checks here to prevent users 
++  * from setting higher voltages than the default one.
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct acpi_processor_performance *acpi_data;
++	struct cpufreq_frequency_table *freq_table;
++	unsigned int freq_index;
++	unsigned int state_index;
++	unsigned int new_vid;
++	unsigned int original_vid;
++	unsigned int new_control;
++	unsigned int original_control;
++	const char *curr_buf = buf;
++	char *next_buf;
++	ssize_t retval;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV; //check if CPU is capable of changing controls
++
++	retval = check_origial_table(data);
++        if (0 != retval)
++		return retval; 
++
++	acpi_data = data->acpi_data;
++	freq_table = data->freq_table;
++
++	/* for each value taken from the sysfs interfalce (phc_vids) get entrys and convert them to unsigned long integers*/
++	for (freq_index = 0; freq_table[freq_index].frequency != CPUFREQ_TABLE_END; freq_index++) {
++		new_vid = simple_strtoul(curr_buf, &next_buf, 10);
++		if (next_buf == curr_buf) {
++			if ((curr_buf - buf == count - 1) && (*curr_buf == '\n')) {   //end of line?
++				curr_buf++;
++				break;
++			}
++			//if we didn't got end of line but there is nothing more to read something went wrong...
++			printk("failed to parse vid value at %i (%s)\n", freq_index, curr_buf);
++			return -EINVAL;
++		}
++
++		state_index = freq_table[freq_index].index;
++		original_control = data->original_controls[state_index];
++		original_vid = original_control & INTEL_MSR_VID_MASK;
++		
++		/* before we store the values we do some checks to prevent 
++		 * users to set up values higher than the default one
++		 */
++		if (new_vid <= original_vid) {
++			new_control = (original_control & ~INTEL_MSR_VID_MASK) | new_vid;
++			dprintk("setting control at %i to %x (default is %x)\n",
++			        freq_index, new_control, original_control);
++			acpi_data->states[state_index].control = new_control;
++
++		} else {
++			printk("skipping vid at %i, %u is greater than default %u\n",
++			       freq_index, new_vid, original_vid);
++		}
++
++		curr_buf = next_buf;
++		/* jump over value seperators (space or comma).
++		 * There could be more than one space or comma character
++		 * to separate two values so we better do it using a loop.
++		 */
++		while ((curr_buf - buf < count) && ((*curr_buf == ' ') || (*curr_buf == ','))) {
++			curr_buf++;
++		}
++	}
++
++	/* set new voltage for current frequency */
++	data->resume = 1;
++	acpi_cpufreq_target(policy, get_cur_freq_on_cpu(policy->cpu), CPUFREQ_RELATION_L);
++
++	return curr_buf - buf;
++}
++
++static ssize_t store_freq_attr_controls(struct cpufreq_policy *policy, const char *buf, size_t count)
++ /* store the controls (frequency id's and related voltage id's)
++  * We are going to do some sanity checks here to prevent users 
++  * from setting higher voltages than the default one.
++  */
++{
++	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
++	struct acpi_processor_performance *acpi_data;
++	struct cpufreq_frequency_table *freq_table;
++	const char   *curr_buf;
++	unsigned int  op_count;
++	unsigned int  state_index;
++	int           isok;
++	char         *next_buf;
++	ssize_t       retval;
++	unsigned int  new_vid;
++	unsigned int  original_vid;
++	unsigned int  new_fid;
++	unsigned int  old_fid;
++	unsigned int  original_control;
++	unsigned int  old_control;
++	unsigned int  new_control;
++	int           found;
++
++	if (!check_cpu_control_capability(data)) return -ENODEV;
++
++	retval = check_origial_table(data);
++        if (0 != retval)
++		return retval;
++
++	acpi_data = data->acpi_data;
++	freq_table = data->freq_table;
++
++	op_count = 0;
++	curr_buf = buf;
++	next_buf = NULL;
++	isok     = 1;
++	
++	while ( (isok) && (curr_buf != NULL) )
++	{
++		op_count++;
++		// Parse fid
++		new_fid = simple_strtoul(curr_buf, &next_buf, 10);
++		if ((next_buf != curr_buf) && (next_buf != NULL))
++		{
++			// Parse separator between frequency and voltage 
++			curr_buf = next_buf;
++			next_buf = NULL;
++			if (*curr_buf==':')
++			{
++				curr_buf++;
++				// Parse vid
++				new_vid = simple_strtoul(curr_buf, &next_buf, 10);
++				if ((next_buf != curr_buf) && (next_buf != NULL))
++				{
++					found = 0;
++					for (state_index = 0; state_index < acpi_data->state_count; state_index++) {
++						old_control = acpi_data->states[state_index].control;
++						old_fid = extract_fid_from_control(old_control);
++						if (new_fid == old_fid)
++						{
++							found = 1;
++							original_control = data->original_controls[state_index];
++							original_vid = extract_vid_from_control(original_control);
++							if (new_vid <= original_vid)
++							{
++								new_control = (original_control & ~INTEL_MSR_VID_MASK) | new_vid;
++								dprintk("setting control at %i to %x (default is %x)\n",
++								        state_index, new_control, original_control);
++								acpi_data->states[state_index].control = new_control;
++
++							} else {
++								printk("skipping vid at %i, %u is greater than default %u\n",
++								       state_index, new_vid, original_vid);
++							}
++						}
++					}
++
++					if (found == 0)
++					{
++						printk("operating point # %u not found (FID = %u)\n", op_count, new_fid);
++						isok = 0;
++					}
++
++					// Parse seprator before next operating point, if any
++					curr_buf = next_buf;
++					next_buf = NULL;
++					if ((*curr_buf == ',') || (*curr_buf == ' '))
++						curr_buf++;
++					else
++						curr_buf = NULL;
++				}
++				else
++				{
++					printk("failed to parse VID of operating point # %u (%s)\n", op_count, curr_buf);
++					isok = 0;
++				}
++			}
++			else
++			{
++				printk("failed to parse operating point # %u (%s)\n", op_count, curr_buf);
++				isok = 0;
++			}
++		}
++		else
++		{
++			printk("failed to parse FID of operating point # %u (%s)\n", op_count, curr_buf);
++			isok = 0;
++		}
++	}
++
++	if (isok)
++	{
++		retval = count;
++		/* set new voltage at current frequency */
++		data->resume = 1;
++		acpi_cpufreq_target(policy, get_cur_freq_on_cpu(policy->cpu), CPUFREQ_RELATION_L);
++	}
++	else
++	{
++		retval = -EINVAL;
++	}
++
++	return retval;
++}
++
++static ssize_t show_freq_attr_phc_version(struct cpufreq_policy *policy, char *buf)
++ /* print out the phc version string set at the beginning of that file
++  */
++{
++	ssize_t count = 0;
++	count += sprintf(&buf[count], "%s\n", PHC_VERSION_STRING);
++	return count;
++}
++
++
++
++static struct freq_attr cpufreq_freq_attr_phc_version =
++{
++	/*display phc's version string*/
++       .attr = { .name = "phc_version", .mode = 0444 },
++       .show = show_freq_attr_phc_version,
++       .store = NULL,
++};
++
++static struct freq_attr cpufreq_freq_attr_vids =
++{
++	/*display phc's voltage id's for the cpu*/
++       .attr = { .name = "phc_vids", .mode = 0644 },
++       .show = show_freq_attr_vids,
++       .store = store_freq_attr_vids,
++};
++
++static struct freq_attr cpufreq_freq_attr_default_vids =
++{
++	/*display acpi's default frequency id's for the cpu*/
++       .attr = { .name = "phc_default_vids", .mode = 0444 },
++       .show = show_freq_attr_default_vids,
++       .store = NULL,
++};
++
++static struct freq_attr cpufreq_freq_attr_fids =
++{
++	/*display phc's default frequency id's for the cpu*/
++       .attr = { .name = "phc_fids", .mode = 0444 },
++       .show = show_freq_attr_fids,
++       .store = NULL,
++};
++
++static struct freq_attr cpufreq_freq_attr_controls =
++{
++	/*display phc's current voltage/frequency controls for the cpu*/
++       .attr = { .name = "phc_controls", .mode = 0644 },
++       .show = show_freq_attr_controls,
++       .store = store_freq_attr_controls,
++};
++
++static struct freq_attr cpufreq_freq_attr_default_controls =
++{
++	/*display acpi's default voltage/frequency controls for the cpu*/
++       .attr = { .name = "phc_default_controls", .mode = 0444 },
++       .show = show_freq_attr_default_controls,
++       .store = NULL,
++};
++
++
+ static struct freq_attr *acpi_cpufreq_attr[] = {
+ 	&cpufreq_freq_attr_scaling_available_freqs,
++	&cpufreq_freq_attr_phc_version,
++	&cpufreq_freq_attr_vids,
++	&cpufreq_freq_attr_default_vids,
++	&cpufreq_freq_attr_fids,
++	&cpufreq_freq_attr_controls,
++	&cpufreq_freq_attr_default_controls,
+ 	NULL,
+ };
+ 
diff --git a/sys-power/phc-intel/phc-intel-0.3.2.12.1-r2.ebuild b/sys-power/phc-intel/phc-intel-0.3.2.12.1-r2.ebuild
index b50a8f5eeccf..3b0f02d42349 100644
--- a/sys-power/phc-intel/phc-intel-0.3.2.12.1-r2.ebuild
+++ b/sys-power/phc-intel/phc-intel-0.3.2.12.1-r2.ebuild
@@ -1,6 +1,6 @@
 # Copyright 1999-2011 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-power/phc-intel/phc-intel-0.3.2.12.1-r2.ebuild,v 1.2 2011/01/05 19:19:13 xmw Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-power/phc-intel/phc-intel-0.3.2.12.1-r2.ebuild,v 1.3 2011/03/16 23:19:43 xmw Exp $
 
 EAPI=2
 
@@ -35,7 +35,7 @@ pkg_setup() {
 
 src_prepare() {
 	local my_k="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}"
-	if kernel_is eq 2 6 35 || kernel_is eq 2 6 36 || kernel_is eq 2 6 37 ; then
+	if kernel_is eq 2 6 35 || kernel_is eq 2 6 36 || kernel_is eq 2 6 37 || kernel_is eq 2 6 38 ; then
 		cp "${KERNEL_DIR}"/arch/x86/kernel/cpu/cpufreq/mperf.h . || die
 		mkdir inc/${my_k} || die
 		cp "${FILESDIR}"/${P}-${my_k}.patch \