From patchwork Tue Feb 26 06:24:30 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kyungsik Lee X-Patchwork-Id: 2184001 Return-Path: X-Original-To: patchwork-linux-kbuild@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 89FCC40B27 for ; Tue, 26 Feb 2013 06:25:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932102Ab3BZGZA (ORCPT ); Tue, 26 Feb 2013 01:25:00 -0500 Received: from LGEMRELSE1Q.lge.com ([156.147.1.111]:59225 "EHLO LGEMRELSE1Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932091Ab3BZGY5 (ORCPT ); Tue, 26 Feb 2013 01:24:57 -0500 X-AuditID: 9c93016f-b7b46ae000007f43-72-512c553609e3 Received: from localhost.localdomain ( [10.177.225.63]) by LGEMRELSE1Q.lge.com (Symantec Brightmail Gateway) with SMTP id 24.3A.32579.6355C215; Tue, 26 Feb 2013 15:24:56 +0900 (KST) From: Kyungsik Lee To: Andrew Morton , Russell King , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Michal Marek , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, x86@kernel.org, celinux-dev@lists.celinuxforum.org Cc: Nicolas Pitre , Nitin Gupta , "Markus F.X.J. Oberhumer" , Richard Purdie , Josh Triplett , Joe Millenbach , David Sterba , Richard Cochran , Albin Tonnerre , Egon Alter , hyojun.im@lge.com, chan.jeong@lge.com, raphael.andy.lee@gmail.com, Kyungsik Lee Subject: [RFC PATCH v2 4/4] x86: Add support for LZ4-compressed kernel Date: Tue, 26 Feb 2013 15:24:30 +0900 Message-Id: <1361859870-15751-5-git-send-email-kyungsik.lee@lge.com> X-Mailer: git-send-email 1.8.1.1 In-Reply-To: <1361859870-15751-1-git-send-email-kyungsik.lee@lge.com> References: <1361859870-15751-1-git-send-email-kyungsik.lee@lge.com> X-Brightmail-Tracker: AAAAAA== Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org This patch integrates the LZ4 decompression code to the x86 pre-boot code. And it depends on two patchs below lib: Add support for LZ4-compressed kernel decompressor: Add LZ4 decompressor module Signed-off-by: Kyungsik Lee --- arch/x86/Kconfig | 1 + arch/x86/boot/compressed/Makefile | 5 ++++- arch/x86/boot/compressed/misc.c | 4 ++++ 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 225543b..ab916fd 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -63,6 +63,7 @@ config X86 select HAVE_KERNEL_LZMA select HAVE_KERNEL_XZ select HAVE_KERNEL_LZO + select HAVE_KERNEL_LZ4 select HAVE_HW_BREAKPOINT select HAVE_MIXED_BREAKPOINTS_REGS select PERF_EVENTS diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 8a84501..c275db5 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -4,7 +4,7 @@ # create a compressed vmlinux image from the original vmlinux # -targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o +targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 KBUILD_CFLAGS += -fno-strict-aliasing -fPIC @@ -64,12 +64,15 @@ $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE $(call if_changed,xzkern) $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE $(call if_changed,lzo) +$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE + $(call if_changed,lz4) suffix-$(CONFIG_KERNEL_GZIP) := gz suffix-$(CONFIG_KERNEL_BZIP2) := bz2 suffix-$(CONFIG_KERNEL_LZMA) := lzma suffix-$(CONFIG_KERNEL_XZ) := xz suffix-$(CONFIG_KERNEL_LZO) := lzo +suffix-$(CONFIG_KERNEL_LZ4) := lz4 quiet_cmd_mkpiggy = MKPIGGY $@ cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false ) diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index 88f7ff6..166a0a8 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -145,6 +145,10 @@ static int lines, cols; #include "../../../../lib/decompress_unlzo.c" #endif +#ifdef CONFIG_KERNEL_LZ4 +#include "../../../../lib/decompress_unlz4.c" +#endif + static void scroll(void) { int i;