Changeset 605 for soft

Timestamp:

Jul 13, 2015, 3:10:27 PM (9 years ago)

Author:

guerin

Message:

tty: don't manually reset WTI

It is already done in hardware, and can cause hardlocks.

File:

• soft/giet_vm/giet_drivers/tty_driver.c (modified) (2 diffs)

soft/giet_vm/giet_drivers/tty_driver.c

@@ -60 +60 @@
                   unsigned int channel )   // TTY channel
 {
-    unsigned int gpid       = _get_procid();
-    unsigned int cluster_xy = gpid >> P_WIDTH;
-
-    // reset WTI in XCU if WTI type
-    if ( irq_type == IRQ_TYPE_WTI ) 
-    {
-        unsigned int value;
-        _xcu_get_wti_value( cluster_xy, irq_id, &value );
-    }
-
     // transfer character to kernel buffer and acknowledge TTY IRQ
     _tty_rx_buf[channel]  = _tty_get_register( channel, TTY_READ ); 
@@ -80 +70 @@
 
 #if GIET_DEBUG_IRQS  // we don't take the TTY lock to avoid deadlock
+unsigned int gpid           = _get_procid();
+unsigned int cluster_xy     = gpid >> P_WIDTH;
 unsigned int x              = cluster_xy >> Y_WIDTH;
 unsigned int y              = cluster_xy & ((1<<Y_WIDTH)-1);