Merge branch 'um-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / include / linux / posix-timers.h

diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index 8206255..d51243a 100644 (file)
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -4,6 +4,7 @@
 #include <linux/spinlock.h>
 #include <linux/list.h>
 #include <linux/sched.h>
+#include <linux/timex.h>
 
 union cpu_time_count {
        cputime_t cpu;
@@ -17,10 +18,21 @@ struct cpu_timer_list {
        int firing;
 };
 
+/*
+ * Bit fields within a clockid:
+ *
+ * The most significant 29 bits hold either a pid or a file descriptor.
+ *
+ * Bit 2 indicates whether a cpu clock refers to a thread or a process.
+ *
+ * Bits 1 and 0 give the type: PROF=0, VIRT=1, SCHED=2, or FD=3.
+ *
+ * A clockid is invalid if bits 2, 1, and 0 are all set.
+ */
 #define CPUCLOCK_PID(clock)            ((pid_t) ~((clock) >> 3))
 #define CPUCLOCK_PERTHREAD(clock) \
        (((clock) & (clockid_t) CPUCLOCK_PERTHREAD_MASK) != 0)
-#define CPUCLOCK_PID_MASK      7
+
 #define CPUCLOCK_PERTHREAD_MASK        4
 #define CPUCLOCK_WHICH(clock)  ((clock) & (clockid_t) CPUCLOCK_CLOCK_MASK)
 #define CPUCLOCK_CLOCK_MASK    3
@@ -28,12 +40,17 @@ struct cpu_timer_list {
 #define CPUCLOCK_VIRT          1
 #define CPUCLOCK_SCHED         2
 #define CPUCLOCK_MAX           3
+#define CLOCKFD                        CPUCLOCK_MAX
+#define CLOCKFD_MASK           (CPUCLOCK_PERTHREAD_MASK|CPUCLOCK_CLOCK_MASK)
 
 #define MAKE_PROCESS_CPUCLOCK(pid, clock) \
        ((~(clockid_t) (pid) << 3) | (clockid_t) (clock))
 #define MAKE_THREAD_CPUCLOCK(tid, clock) \
        MAKE_PROCESS_CPUCLOCK((tid), (clock) | CPUCLOCK_PERTHREAD_MASK)
 
+#define FD_TO_CLOCKID(fd)      ((~(clockid_t) (fd) << 3) | CLOCKFD)
+#define CLOCKID_TO_FD(clk)     ((unsigned int) ~((clk) >> 3))
+
 /* POSIX.1b interval timer structure. */
 struct k_itimer {
        struct list_head list;          /* free/ allocate list */
@@ -71,6 +88,7 @@ struct k_clock {
        int (*clock_set) (const clockid_t which_clock,
                          const struct timespec *tp);
        int (*clock_get) (const clockid_t which_clock, struct timespec * tp);
+       int (*clock_adj) (const clockid_t which_clock, struct timex *tx);
        int (*timer_create) (struct k_itimer *timer);
        int (*nsleep) (const clockid_t which_clock, int flags,
                       struct timespec *, struct timespec __user *);
@@ -85,8 +103,9 @@ struct k_clock {
 };
 
 extern struct k_clock clock_posix_cpu;
+extern struct k_clock clock_posix_dynamic;
 
-void register_posix_clock(const clockid_t clock_id, struct k_clock *new_clock);
+void posix_timers_register_clock(const clockid_t clock_id, struct k_clock *new_clock);
 
 /* function to call to trigger timer event */
 int posix_timer_event(struct k_itimer *timr, int si_private);