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 000000000000..cb1025aeabcf
--- /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 */