linux_dsm_epyc7002/arch/blackfin/mach-common
Davide Libenzi 4d672e7ac7 timerfd: new timerfd API
This is the new timerfd API as it is implemented by the following patch:

int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
		    const struct itimerspec *utmr,
		    struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);

The timerfd_create() API creates an un-programmed timerfd fd.  The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.

The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).

The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter.  Otherwise it's a relative time.

The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.

Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface).  Here's a simple test program I used to
exercise the new timerfd APIs:

http://www.xmailserver.org/timerfd-test2.c

[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:07 -08:00
..
arch_checks.c Blackfin arch: to do some consolidation of common code and common name spaces 2007-10-10 23:55:26 +08:00
cache.S Blackfin arch: use HI/LO macros rather than masking the bit ranges ourselves 2007-07-25 10:11:42 +08:00
cacheinit.S Blackfin arch: to do some consolidation of common code and common name spaces 2007-10-10 23:55:26 +08:00
dpmc.S [Blackfin] arch: Add some comments - fix semicolons 2008-01-11 17:21:41 +08:00
entry.S timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
interrupt.S [Blackfin] arch: fix bug - trap_tests fails to recover on some tests. 2008-01-27 15:38:56 +08:00
ints-priority-dc.c [Blackfin] arch: append IRQ Number to label string 2007-12-24 16:56:12 +08:00
ints-priority-sc.c [Blackfin] arch: Enable both edge triggered GPIO IRQs on BF54x and use irq_to_gpio() 2007-12-24 18:51:34 +08:00
irqpanic.c [Blackfin] arch: fix bug - trap_tests fails to recover on some tests. 2008-01-27 15:38:56 +08:00
lock.S Blackfin arch: to do some consolidation of common code and common name spaces 2007-10-10 23:55:26 +08:00
Makefile [Blackfin] arch: move all code related to CPLB handling into a new subdirectory under kernel/ 2008-01-11 16:58:44 +08:00
pm.c [Blackfin] arch: Fix bug to Enable kernel to build for bf548 with PM. 2007-12-23 23:02:13 +08:00