/* net/atm/common.h - ATM sockets (common part for PVC and SVC) */

/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */


#ifndef NET_ATM_COMMON_H
#define NET_ATM_COMMON_H

#include <linux/net.h>
#include <linux/poll.h> /* for poll_table */


int vcc_create(struct net *net, struct socket *sock, int protocol, int family, int kern);
int vcc_release(struct socket *sock);
int vcc_connect(struct socket *sock, int itf, short vpi, int vci);
int vcc_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
		int flags);
int vcc_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len);
unsigned int vcc_poll(struct file *file, struct socket *sock, poll_table *wait);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_setsockopt(struct socket *sock, int level, int optname,
		   char __user *optval, unsigned int optlen);
int vcc_getsockopt(struct socket *sock, int level, int optname,
		   char __user *optval, int __user *optlen);
void vcc_process_recv_queue(struct atm_vcc *vcc);

int atmpvc_init(void);
void atmpvc_exit(void);
int atmsvc_init(void);
void atmsvc_exit(void);
int atm_sysfs_init(void);
void atm_sysfs_exit(void);

#ifdef CONFIG_PROC_FS
int atm_proc_init(void);
void atm_proc_exit(void);
#else
static inline int atm_proc_init(void)
{
	return 0;
}

static inline void atm_proc_exit(void)
{
	/* nothing */
}
#endif /* CONFIG_PROC_FS */

/* SVC */
int svc_change_qos(struct atm_vcc *vcc,struct atm_qos *qos);

void atm_dev_release_vccs(struct atm_dev *dev);

#endif
it/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/media/c8sectpfe.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/media/c8sectpfe.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>dt-bindings</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/media?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>media</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>c8sectpfe.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='6e978b22efa1db9f6e71b24440b5f1d93e968ee3'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;</td><td class='right'>2017-02-03 14:18:39 -0800</td></tr>
<tr><th>committer</th><td>Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;</td><td class='right'>2017-02-04 00:11:08 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>6e978b22efa1db9f6e71b24440b5f1d93e968ee3</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>c666f7a26b860674848949e39a610222b0723f89</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>include/dt-bindings/media/c8sectpfe.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/media/c8sectpfe.h?id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>3c223c19aea85d3dda1416c187915f4a30b04b1f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings/media/c8sectpfe.h?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3&amp;id2=3c223c19aea85d3dda1416c187915f4a30b04b1f'>diff</a>)</td></tr></table>
<div class='commit-subject'>cpufreq: intel_pstate: Disable energy efficiency optimization</div><div class='commit-msg'>Some Kabylake desktop processors may not reach max turbo when running in
HWP mode, even if running under sustained 100% utilization.

This occurs when the HWP.EPP (Energy Performance Preference) is set to
"balance_power" (0x80) -- the default on most systems.

It occurs because the platform BIOS may erroneously enable an
energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not
recommended to be enabled on this SKU.

On the failing systems, this BIOS issue was not discovered when the
desktop motherboard was tested with Windows, because the BIOS also
neglects to provide the ACPI/CPPC table, that Windows requires to enable
HWP, and so Windows runs in legacy P-state mode, where this setting has
no effect.

Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and
so it runs in HWP mode, exposing this incorrect BIOS configuration.

There are several ways to address this problem.

First, Linux can also run in legacy P-state mode on this system.
As intel_pstate is how Linux enables HWP, booting with
"intel_pstate=disable"
will run in acpi-cpufreq/ondemand legacy p-state mode.

Or second, the "performance" governor can be used with intel_pstate,
which will modify HWP.EPP to 0.

Or third, starting in 4.10, the
/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
attribute in can be updated from "balance_power" to "performance".

Or fourth, apply this patch, which fixes the erroneous setting of
MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default
configuration to function as designed.

Signed-off-by: Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;
Reviewed-by: Len Brown &lt;len.brown@intel.com&gt;
Cc: 4.6+ &lt;stable@vger.kernel.org&gt; # 4.6+
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=6e978b22efa1db9f6e71b24440b5f1d93e968ee3'>Diffstat</a> (limited to 'include/dt-bindings/media/c8sectpfe.h')</div><table summary='diffstat' class='diffstat'>