#ifndef _UAPI__ASM_GENERIC_SIGNAL_H
#define _UAPI__ASM_GENERIC_SIGNAL_H

#include <linux/types.h>

#define _NSIG		64
#define _NSIG_BPW	__BITS_PER_LONG
#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)

#define SIGHUP		 1
#define SIGINT		 2
#define SIGQUIT		 3
#define SIGILL		 4
#define SIGTRAP		 5
#define SIGABRT		 6
#define SIGIOT		 6
#define SIGBUS		 7
#define SIGFPE		 8
#define SIGKILL		 9
#define SIGUSR1		10
#define SIGSEGV		11
#define SIGUSR2		12
#define SIGPIPE		13
#define SIGALRM		14
#define SIGTERM		15
#define SIGSTKFLT	16
#define SIGCHLD		17
#define SIGCONT		18
#define SIGSTOP		19
#define SIGTSTP		20
#define SIGTTIN		21
#define SIGTTOU		22
#define SIGURG		23
#define SIGXCPU		24
#define SIGXFSZ		25
#define SIGVTALRM	26
#define SIGPROF		27
#define SIGWINCH	28
#define SIGIO		29
#define SIGPOLL		SIGIO
/*
#define SIGLOST		29
*/
#define SIGPWR		30
#define SIGSYS		31
#define	SIGUNUSED	31

/* These should not be considered constants from userland.  */
#define SIGRTMIN	32
#ifndef SIGRTMAX
#define SIGRTMAX	_NSIG
#endif

/*
 * SA_FLAGS values:
 *
 * SA_ONSTACK indicates that a registered stack_t will be used.
 * SA_RESTART flag to get restarting signals (which were the default long ago)
 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 * SA_RESETHAND clears the handler when the signal is delivered.
 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 * SA_NODEFER prevents the current signal from being masked in the handler.
 *
 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 * Unix names RESETHAND and NODEFER respectively.
 */
#define SA_NOCLDSTOP	0x00000001
#define SA_NOCLDWAIT	0x00000002
#define SA_SIGINFO	0x00000004
#define SA_ONSTACK	0x08000000
#define SA_RESTART	0x10000000
#define SA_NODEFER	0x40000000
#define SA_RESETHAND	0x80000000

#define SA_NOMASK	SA_NODEFER
#define SA_ONESHOT	SA_RESETHAND

/*
 * New architectures should not define the obsolete
 *	SA_RESTORER	0x04000000
 */

#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192
#endif

#ifndef __ASSEMBLY__
typedef struct {
	unsigned long sig[_NSIG_WORDS];
} sigset_t;

/* not actually used, but required for linux/syscalls.h */
typedef unsigned long old_sigset_t;

#include <asm-generic/signal-defs.h>

#ifdef SA_RESTORER
#define __ARCH_HAS_SA_RESTORER
#endif

#ifndef __KERNEL__
struct sigaction {
	__sighandler_t sa_handler;
	unsigned long sa_flags;
#ifdef SA_RESTORER
	__sigrestore_t sa_restorer;
#endif
	sigset_t sa_mask;		/* mask last for extensibility */
};
#endif

typedef struct sigaltstack {
	void __user *ss_sp;
	int ss_flags;
	size_t ss_size;
} stack_t;

#endif /* __ASSEMBLY__ */

#endif /* _UAPI__ASM_GENERIC_SIGNAL_H */
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>Chris Wilson &lt;chris@chris-wilson.co.uk&gt;</td><td class='right'>2016-04-13 17:35:11 +0100</td></tr>
<tr><th>committer</th><td>Jani Nikula &lt;jani.nikula@intel.com&gt;</td><td class='right'>2016-04-18 12:35:51 +0300</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=1b3e885a05d4f0a35dde035724e7c6453d2cbe71'>1b3e885a05d4f0a35dde035724e7c6453d2cbe71</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=1b3e885a05d4f0a35dde035724e7c6453d2cbe71'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=1b3e885a05d4f0a35dde035724e7c6453d2cbe71'>4c114b9d7610e36750d878238eb38655b29f6ffc</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=537d3b10086ffae30efbc7c66777c0a08b58d3e6'>537d3b10086ffae30efbc7c66777c0a08b58d3e6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=1b3e885a05d4f0a35dde035724e7c6453d2cbe71&amp;id2=537d3b10086ffae30efbc7c66777c0a08b58d3e6'>diff</a>)</td></tr></table>
<div class='commit-subject'>drm/i915: Force ringbuffers to not be at offset 0</div><div class='commit-msg'>For reasons unknown Sandybridge GT1 (at least) will eventually hang when
it encounters a ring wraparound at offset 0. The test case that
reproduces the bug reliably forces a large number of interrupted context
switches, thereby causing very frequent ring wraparounds, but there are
similar bug reports in the wild with the same symptoms, seqno writes
stop just before the wrap and the ringbuffer at address 0. It is also
timing crucial, but adding various delays hasn't helped pinpoint where
the window lies.

Whether the fault is restricted to the ringbuffer itself or the GTT
addressing is unclear, but moving the ringbuffer fixes all the hangs I
have been able to reproduce.

References: (e.g.) https://bugs.freedesktop.org/show_bug.cgi?id=93262
Testcase: igt/gem_exec_whisper/render-contexts-interruptible #snb-gt1
Signed-off-by: Chris Wilson &lt;chris@chris-wilson.co.uk&gt;
Cc: stable@vger.kernel.org
Acked-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Link: http://patchwork.freedesktop.org/patch/msgid/1460565315-7748-12-git-send-email-chris@chris-wilson.co.uk
(cherry picked from commit a687a43a48f0f91ba37dce5a14b467258ed6f035)
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=1b3e885a05d4f0a35dde035724e7c6453d2cbe71'>Diffstat</a></div><table summary='diffstat' class='diffstat'>