/*
 * Copyright (C) 2009 Philippe Gerum <rpm@xenomai.org>.
 *
 * Xenomai is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Xenomai is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Xenomai; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifndef _XENO_ASM_NIOS2_BITS_THREAD_H
#define _XENO_ASM_NIOS2_BITS_THREAD_H

#ifndef __KERNEL__
#error "Pure kernel header included from user-space!"
#endif

static inline void xnarch_init_tcb(xnarchtcb_t * tcb)
{

	tcb->user_task = NULL;
	tcb->tsp = &tcb->ts;
	/* Must be followed by xnarch_init_thread(). */
}

#define xnarch_alloc_stack(tcb,stacksize)		\
	({						\
		int __err;				\
		(tcb)->stacksize = stacksize;		\
		if (stacksize == 0) {			\
			(tcb)->stackbase = NULL;	\
			__err = 0;			\
		} else {				\
			(tcb)->stackbase = xnmalloc(stacksize); \
			__err = (tcb)->stackbase ? 0 : -ENOMEM; \
		}						\
		__err;						\
	})

#define xnarch_free_stack(tcb)				\
	do {						\
		if ((tcb)->stackbase)			\
			xnfree((tcb)->stackbase);	\
	} while (0)

#endif /* !_XENO_ASM_NIOS2_BITS_THREAD_H */
