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Diffstat (limited to 'arch/blackfin/include/asm/ipipe_base.h')
| -rw-r--r-- | arch/blackfin/include/asm/ipipe_base.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/ipipe_base.h b/arch/blackfin/include/asm/ipipe_base.h new file mode 100644 index 00000000000..cb1025aeabc --- /dev/null +++ b/arch/blackfin/include/asm/ipipe_base.h @@ -0,0 +1,80 @@ +/* -*- linux-c -*- + * include/asm-blackfin/_baseipipe.h + * + * Copyright (C) 2007 Philippe Gerum. + * + * This program 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, Inc., 675 Mass Ave, Cambridge MA 02139, + * USA; either version 2 of the License, or (at your option) any later + * version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __ASM_BLACKFIN_IPIPE_BASE_H +#define __ASM_BLACKFIN_IPIPE_BASE_H + +#ifdef CONFIG_IPIPE + +#define IPIPE_NR_XIRQS NR_IRQS +#define IPIPE_IRQ_ISHIFT 5 /* 2^5 for 32bits arch. */ + +/* Blackfin-specific, global domain flags */ +#define IPIPE_ROOTLOCK_FLAG 1 /* Lock pipeline for root */ + + /* Blackfin traps -- i.e. exception vector numbers */ +#define IPIPE_NR_FAULTS 52 /* We leave a gap after VEC_ILL_RES. */ +/* Pseudo-vectors used for kernel events */ +#define IPIPE_FIRST_EVENT IPIPE_NR_FAULTS +#define IPIPE_EVENT_SYSCALL (IPIPE_FIRST_EVENT) +#define IPIPE_EVENT_SCHEDULE (IPIPE_FIRST_EVENT + 1) +#define IPIPE_EVENT_SIGWAKE (IPIPE_FIRST_EVENT + 2) +#define IPIPE_EVENT_SETSCHED (IPIPE_FIRST_EVENT + 3) +#define IPIPE_EVENT_INIT (IPIPE_FIRST_EVENT + 4) +#define IPIPE_EVENT_EXIT (IPIPE_FIRST_EVENT + 5) +#define IPIPE_EVENT_CLEANUP (IPIPE_FIRST_EVENT + 6) +#define IPIPE_LAST_EVENT IPIPE_EVENT_CLEANUP +#define IPIPE_NR_EVENTS (IPIPE_LAST_EVENT + 1) + +#define IPIPE_TIMER_IRQ IRQ_CORETMR + +#ifndef __ASSEMBLY__ + +#include <linux/bitops.h> + +extern int test_bit(int nr, const void *addr); + + +extern unsigned long __ipipe_root_status; /* Alias to ipipe_root_cpudom_var(status) */ + +static inline void __ipipe_stall_root(void) +{ + volatile unsigned long *p = &__ipipe_root_status; + set_bit(0, p); +} + +static inline unsigned long __ipipe_test_and_stall_root(void) +{ + volatile unsigned long *p = &__ipipe_root_status; + return test_and_set_bit(0, p); +} + +static inline unsigned long __ipipe_test_root(void) +{ + const unsigned long *p = &__ipipe_root_status; + return test_bit(0, p); +} + +#endif /* !__ASSEMBLY__ */ + +#endif /* CONFIG_IPIPE */ + +#endif /* !__ASM_BLACKFIN_IPIPE_BASE_H */ |