diff options
| author | Ingo Molnar <mingo@kernel.org> | 2018-04-12 10:42:34 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-04-12 10:42:34 +0300 |
| commit | ef389b734691cdc8beb009dd402135dcdcb86a56 (patch) | |
| tree | 9523a37db93cb7c7874a5f18b4d9a7014898b814 /arch/tile/kernel/jump_label.c | |
| parent | a774635db5c430cbf21fa5d2f2df3d23aaa8e782 (diff) | |
| parent | c76fc98260751e71c884dc1a18a07e427ef033b5 (diff) | |
| download | linux-ef389b734691cdc8beb009dd402135dcdcb86a56.tar.xz | |
Merge branch 'WIP.x86/asm' into x86/urgent, because the topic is ready
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/tile/kernel/jump_label.c')
| -rw-r--r-- | arch/tile/kernel/jump_label.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/arch/tile/kernel/jump_label.c b/arch/tile/kernel/jump_label.c deleted file mode 100644 index 93931a46625b..000000000000 --- a/arch/tile/kernel/jump_label.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright 2015 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. - * - * jump label TILE-Gx support - */ - -#include <linux/jump_label.h> -#include <linux/memory.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/cpu.h> - -#include <asm/cacheflush.h> -#include <asm/insn.h> - -#ifdef HAVE_JUMP_LABEL - -static void __jump_label_transform(struct jump_entry *e, - enum jump_label_type type) -{ - tilegx_bundle_bits opcode; - /* Operate on writable kernel text mapping. */ - unsigned long pc_wr = ktext_writable_addr(e->code); - - if (type == JUMP_LABEL_JMP) - opcode = tilegx_gen_branch(e->code, e->target, false); - else - opcode = NOP(); - - *(tilegx_bundle_bits *)pc_wr = opcode; - /* Make sure that above mem writes were issued towards the memory. */ - smp_wmb(); -} - -void arch_jump_label_transform(struct jump_entry *e, - enum jump_label_type type) -{ - mutex_lock(&text_mutex); - - __jump_label_transform(e, type); - flush_icache_range(e->code, e->code + sizeof(tilegx_bundle_bits)); - - mutex_unlock(&text_mutex); -} - -__init_or_module void arch_jump_label_transform_static(struct jump_entry *e, - enum jump_label_type type) -{ - __jump_label_transform(e, type); -} - -#endif /* HAVE_JUMP_LABEL */ |