rk: remove unused PIE support

Change-Id: Ib7793724ef4e1c681898813e4ca5dd47a1960ae2
Signed-off-by: Tao Huang <huangtao@rock-chips.com>

1 files changed, 0 insertions, 142 deletions

diff --git a/lib/pie.c b/lib/pie.c
deleted file mode 100644
index c266a61bad72..000000000000
--- a/lib/pie.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright 2013 Texas Instruments, Inc.
- *	Russ Dill <russ.dill@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/genalloc.h>
-#include <linux/pie.h>
-#include <asm/cacheflush.h>
-
-struct pie_chunk {
-	struct gen_pool *pool;
-	unsigned long addr;
-	size_t sz;
-};
-
-extern char __pie_common_start[];
-extern char __pie_common_end[];
-extern char __pie_overlay_start[];
-
-int __weak pie_arch_fill_tail(void *tail, void *common_start, void *common_end,
-			void *overlay_start, void *code_start, void *code_end,
-			void *rel_start, void *rel_end)
-{
-	return 0;
-}
-
-int __weak pie_arch_fixup(struct pie_chunk *chunk, void *base, void *tail,
-							unsigned long offset)
-{
-	return 0;
-}
-
-struct pie_chunk *__pie_load_data(struct gen_pool *pool, bool phys,
-		void *code_start, void *code_end,
-		void *rel_start, void *rel_end)
-{
-	struct pie_chunk *chunk;
-	unsigned long offset;
-	int ret;
-	char *tail;
-	size_t common_sz;
-	size_t code_sz;
-	size_t tail_sz;
-
-	/* Calculate the tail size */
-	ret = pie_arch_fill_tail(NULL, __pie_common_start, __pie_common_end,
-				__pie_overlay_start, code_start, code_end,
-				rel_start, rel_end);
-	if (ret < 0)
-		goto err;
-	tail_sz = ret;
-
-	chunk = kzalloc(sizeof(*chunk), GFP_KERNEL);
-	if (!chunk) {
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	common_sz = __pie_overlay_start - __pie_common_start;
-	code_sz = code_end - code_start;
-
-	chunk->pool = pool;
-	chunk->sz = common_sz + code_sz + tail_sz;
-
-	chunk->addr = gen_pool_alloc(pool, chunk->sz);
-	if (!chunk->addr) {
-		ret = -ENOMEM;
-		goto err_free;
-	}
-
-	/* Copy common code/data */
-	tail = (char *) chunk->addr;
-	memcpy(tail, __pie_common_start, common_sz);
-	tail += common_sz;
-
-	/* Copy chunk specific code/data */
-	memcpy(tail, code_start, code_sz);
-	tail += code_sz;
-
-	/* Fill in tail data */
-	ret = pie_arch_fill_tail(tail, __pie_common_start, __pie_common_end,
-				__pie_overlay_start, code_start, code_end,
-				rel_start, rel_end);
-	if (ret < 0)
-		goto err_alloc;
-
-	/* Calculate initial offset */
-	if (phys)
-		offset = gen_pool_virt_to_phys(pool, chunk->addr);
-	else
-		offset = chunk->addr;
-
-	/* Perform arch specific code fixups */
-	ret = pie_arch_fixup(chunk, (void *) chunk->addr, tail, offset);
-	if (ret < 0)
-		goto err_alloc;
-
-	flush_icache_range(chunk->addr, chunk->addr + chunk->sz);
-
-	return chunk;
-
-err_alloc:
-	gen_pool_free(chunk->pool, chunk->addr, chunk->sz);
-
-err_free:
-	kfree(chunk);
-err:
-	return ERR_PTR(ret);
-}
-EXPORT_SYMBOL_GPL(__pie_load_data);
-
-phys_addr_t pie_to_phys(struct pie_chunk *chunk, unsigned long addr)
-{
-	return gen_pool_virt_to_phys(chunk->pool, addr);
-}
-EXPORT_SYMBOL_GPL(pie_to_phys);
-
-void __iomem *__kern_to_pie(struct pie_chunk *chunk, void *ptr)
-{
-	uintptr_t offset = (uintptr_t) ptr;
-	offset -= (uintptr_t) __pie_common_start;
-	if (offset >= chunk->sz)
-		return NULL;
-	else
-		return (void *) (chunk->addr + offset);
-}
-EXPORT_SYMBOL_GPL(__kern_to_pie);
-
-void pie_free(struct pie_chunk *chunk)
-{
-	gen_pool_free(chunk->pool, chunk->addr, chunk->sz);
-	kfree(chunk);
-}
-EXPORT_SYMBOL_GPL(pie_free);