diff options
| author | Zheng Da <zhengda1936@gmail.com> | 2010-01-26 09:12:56 +0100 |
|---|---|---|
| committer | Zheng Da <zhengda1936@gmail.com> | 2010-01-26 09:12:56 +0100 |
| commit | ff4e243b5be3be650e554a795e54ea428bcaea20 (patch) | |
| tree | 8db02b532cd7c92baa477403d4fd3af5f1a3256e | |
| parent | ed60ecf7abdade8ee7b63f7621b3920ca9c42912 (diff) | |
raise the priority of the interrupt handler thread.
| -rw-r--r-- | libddekit/interrupt.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/libddekit/interrupt.c b/libddekit/interrupt.c index 5a778f9b..f3fc10c0 100644 --- a/libddekit/interrupt.c +++ b/libddekit/interrupt.c @@ -60,6 +60,7 @@ static struct } ddekit_irq_ctrl[MAX_INTERRUPTS]; static mach_port_t master_device; +static mach_port_t master_host; /** * Interrupt service loop @@ -69,11 +70,19 @@ static void intloop(void *arg) { kern_return_t ret; struct intloop_params *params = arg; - mach_port_t delivery_port = mach_reply_port (); + mach_port_t delivery_port = mach_port_reply (); + mach_port_t pset, psetcntl; int my_index; my_index = params->irq; ddekit_irq_ctrl[my_index].mach_thread = mach_thread_self (); + ret = thread_get_assignment (mach_thread_self (), &pset); + if (ret) + error (0, ret, "thread_get_assignment"); + ret = host_processor_set_priv (master_host, pset, &psetcntl); + if (ret) + error (0, ret, "host_processor_set_priv"); + thread_max_priority (mach_thread_self (), psetcntl, 0); ret = thread_priority (mach_thread_self (), DDEKIT_IRQ_PRIO, 0); if (ret) error (0, ret, "thread_priority"); @@ -257,7 +266,7 @@ void interrupt_init () error_t err; - err = get_privileged_ports (0, &master_device); + err = get_privileged_ports (&master_host, &master_device); if (err) error (1, err, "get_privileged_ports"); } |