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-rw-r--r--arch/tile/include/uapi/arch/icache.h94
1 files changed, 0 insertions, 94 deletions
diff --git a/arch/tile/include/uapi/arch/icache.h b/arch/tile/include/uapi/arch/icache.h
deleted file mode 100644
index ff85a5d77f16..000000000000
--- a/arch/tile/include/uapi/arch/icache.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- * 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, version 2.
- *
- * 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, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- *
- */
-
-/**
- * @file
- *
- * Support for invalidating bytes in the instruction cache.
- */
-
-#ifndef __ARCH_ICACHE_H__
-#define __ARCH_ICACHE_H__
-
-#include <arch/chip.h>
-
-
-/**
- * Invalidate the instruction cache for the given range of memory.
- *
- * @param addr The start of memory to be invalidated.
- * @param size The number of bytes to be invalidated.
- * @param page_size The system's page size, e.g. getpagesize() in userspace.
- * This value must be a power of two no larger than the page containing
- * the code to be invalidated. If the value is smaller than the actual page
- * size, this function will still work, but may run slower than necessary.
- */
-static __inline void
-invalidate_icache(const void* addr, unsigned long size,
- unsigned long page_size)
-{
- const unsigned long cache_way_size =
- CHIP_L1I_CACHE_SIZE() / CHIP_L1I_ASSOC();
- unsigned long max_useful_size;
- const char* start, *end;
- long num_passes;
-
- if (__builtin_expect(size == 0, 0))
- return;
-
-#ifdef __tilegx__
- /* Limit the number of bytes visited to avoid redundant iterations. */
- max_useful_size = (page_size < cache_way_size) ? page_size : cache_way_size;
-
- /* No PA aliasing is possible, so one pass always suffices. */
- num_passes = 1;
-#else
- /* Limit the number of bytes visited to avoid redundant iterations. */
- max_useful_size = cache_way_size;
-
- /*
- * Compute how many passes we need (we'll treat 0 as if it were 1).
- * This works because we know the page size is a power of two.
- */
- num_passes = cache_way_size >> __builtin_ctzl(page_size);
-#endif
-
- if (__builtin_expect(size > max_useful_size, 0))
- size = max_useful_size;
-
- /* Locate the first and last bytes to be invalidated. */
- start = (const char *)((unsigned long)addr & -CHIP_L1I_LINE_SIZE());
- end = (const char*)addr + size - 1;
-
- __insn_mf();
-
- do
- {
- const char* p;
-
- for (p = start; p <= end; p += CHIP_L1I_LINE_SIZE())
- __insn_icoh(p);
-
- start += page_size;
- end += page_size;
- }
- while (--num_passes > 0);
-
- __insn_drain();
-}
-
-
-#endif /* __ARCH_ICACHE_H__ */