aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ubicom32/files/arch/ubicom32/include/asm/thread-asm.h
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/include/asm/thread-asm.h')
-rw-r--r--target/linux/ubicom32/files/arch/ubicom32/include/asm/thread-asm.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/thread-asm.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/thread-asm.h
new file mode 100644
index 000000000..f9566037e
--- /dev/null
+++ b/target/linux/ubicom32/files/arch/ubicom32/include/asm/thread-asm.h
@@ -0,0 +1,51 @@
+/*
+ * arch/ubicom32/include/asm/thread-asm.h
+ * Ubicom32 architecture specific thread definitions.
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ * arch/m68knommu
+ * arch/blackfin
+ * arch/parisc
+ */
+#ifndef _ASM_UBICOM32_THREAD_ASM_H
+#define _ASM_UBICOM32_THREAD_ASM_H
+
+/*
+ * thread_get_self
+ * Read and shift the current thread into reg
+ *
+ * Note that we don't need to mask the result as bits 6 through 31 of the
+ * ROSR are zeroes.
+ */
+.macro thread_get_self reg
+ lsr.4 \reg, ROSR, #2
+.endm
+
+/*
+ * thread_get_self_mask
+ * Read and shift the current thread mask into reg
+ */
+.macro thread_get_self_mask reg
+ lsr.4 \reg, ROSR, #2
+ lsl.4 \reg, #1, \reg /* Thread bit */
+.endm
+
+#endif /* _ASM_UBICOM32_THREAD_ASM_H */