[PATCH] xtensa: remove extra header files

The Xtensa port contained many header files that were never needed.  This
rather lengthy patch removes all those files.  Unfortunately, there were
many dependencies that needed to be updated, so this patch touches quite a
few source files.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 153 insertions, 0 deletions

diff --git a/include/asm-xtensa/asmmacro.h b/include/asm-xtensa/asmmacro.h
new file mode 100644
index 000000000000..76915cabad17
--- /dev/null
+++ b/include/asm-xtensa/asmmacro.h
@@ -0,0 +1,153 @@
+/*
+ * include/asm-xtensa/asmmacro.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_ASMMACRO_H
+#define _XTENSA_ASMMACRO_H
+
+#include <asm/variant/core.h>
+
+/*
+ * Some little helpers for loops. Use zero-overhead-loops
+ * where applicable and if supported by the processor.
+ *
+ * __loopi ar, at, size, inc
+ *         ar   register initialized with the start address
+ *         at   scratch register used by macro
+ *         size size immediate value
+ *         inc  increment
+ *
+ * __loops ar, as, at, inc_log2[, mask_log2][, cond][, ncond]
+ *         ar   register initialized with the start address
+ *         as   register initialized with the size
+ *         at   scratch register use by macro
+ *         inc_log2     increment [in log2]
+ *         mask_log2    mask [in log2]
+ *         cond         true condition (used in loop'cond')
+ *         ncond        false condition (used in b'ncond')
+ *
+ * __loop  as
+ *         restart loop. 'as' register must not have been modified!
+ *
+ * __endla ar, at, incr
+ *         ar   start address (modified)
+ *         as   scratch register used by macro
+ *         inc  increment
+ */
+
+/*
+ * loop for given size as immediate
+ */
+
+        .macro  __loopi ar, at, size, incr
+
+#if XCHAL_HAVE_LOOPS
+                movi    \at, ((\size + \incr - 1) / (\incr))
+                loop    \at, 99f
+#else
+                addi    \at, \ar, \size
+                98:
+#endif
+
+        .endm
+
+/*
+ * loop for given size in register
+ */
+
+        .macro  __loops ar, as, at, incr_log2, mask_log2, cond, ncond
+
+#if XCHAL_HAVE_LOOPS
+                .ifgt \incr_log2 - 1
+                        addi    \at, \as, (1 << \incr_log2) - 1
+                        .ifnc \mask_log2,
+                                extui   \at, \at, \incr_log2, \mask_log2
+                        .else
+                                srli    \at, \at, \incr_log2
+                        .endif
+                .endif
+                loop\cond       \at, 99f
+#else
+                .ifnc \mask_log2,
+                        extui   \at, \as, \incr_log2, \mask_log2
+                .else
+                        .ifnc \ncond,
+                                srli    \at, \as, \incr_log2
+                        .endif
+                .endif
+                .ifnc \ncond,
+                        b\ncond \at, 99f
+
+                .endif
+                .ifnc \mask_log2,
+                        slli    \at, \at, \incr_log2
+                        add     \at, \ar, \at
+                .else
+                        add     \at, \ar, \as
+                .endif
+#endif
+                98:
+
+        .endm
+
+/*
+ * loop from ar to ax
+ */
+
+        .macro  __loopt ar, as, at, incr_log2
+
+#if XCHAL_HAVE_LOOPS
+                sub     \at, \as, \ar
+                .ifgt   \incr_log2 - 1
+                        addi    \at, \at, (1 << \incr_log2) - 1
+                        srli    \at, \at, \incr_log2
+                .endif
+                loop    \at, 99f
+#else
+                98:
+#endif
+
+        .endm
+
+/*
+ * restart loop. registers must be unchanged
+ */
+
+        .macro  __loop  as
+
+#if XCHAL_HAVE_LOOPS
+                loop    \as, 99f
+#else
+                98:
+#endif
+
+        .endm
+
+/*
+ * end of loop with no increment of the address.
+ */
+
+        .macro  __endl  ar, as
+#if !XCHAL_HAVE_LOOPS
+                bltu    \ar, \as, 98b
+#endif
+                99:
+        .endm
+
+/*
+ * end of loop with increment of the address.
+ */
+
+        .macro  __endla ar, as, incr
+                addi    \ar, \ar, \incr
+                __endl  \ar \as
+        .endm
+
+
+#endif /* _XTENSA_ASMMACRO_H */