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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: barebox@lists.infradead.org
Subject: [PATCH 08/12] ARM: add early malloc support needed by the decompressor
Date: Mon, 30 Jul 2012 12:02:41 +0200	[thread overview]
Message-ID: <1343642565-32257-8-git-send-email-plagnioj@jcrosoft.com> (raw)
In-Reply-To: <1343642565-32257-1-git-send-email-plagnioj@jcrosoft.com>

This is not needed by lzo but by gunzip, xz and others.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/cpu/start.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index a54f5fd..f61c326 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -28,6 +28,9 @@
 #include <asm-generic/memory_layout.h>
 #include <asm/sections.h>
 
+unsigned long free_mem_ptr;
+unsigned long free_mem_end_ptr;
+
 #ifdef CONFIG_PBL_IMAGE
 void __naked __section(.text_head_entry) pbl_start(void)
 {
@@ -193,6 +196,10 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
 	/* clear bss */
 	memset(__bss_start, 0, __bss_stop - __bss_start);
 
+	/* set 128 KiB at the end of the MALLOC_BASE for early malloc */
+	free_mem_ptr = MALLOC_BASE + MALLOC_SIZE - SZ_128K;
+	free_mem_end_ptr = free_mem_ptr + SZ_128K;
+
 	/* flush I-cache before jumping to the copied binary */
 	__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
 
-- 
1.7.10.4


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  parent reply	other threads:[~2012-07-30 10:03 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-30 10:00 [PATCH 00/12 v3] Add Pre-Bootloader support Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02 ` [PATCH 01/12] kbuild: Init all relevant variables used in kbuild files so Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 02/12] kbuild: add pre-bootloader (pbl) target Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 03/12] Add pre-bootloader (pbl) image support Jean-Christophe PLAGNIOL-VILLARD
2012-08-02 15:29     ` Sascha Hauer
2012-08-03  6:50     ` Sascha Hauer
2012-08-03  7:06       ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 04/12] pbl: discard unwind symbol if enable in barebox Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 05/12] Add compressed image support Jean-Christophe PLAGNIOL-VILLARD
2012-08-02 15:30     ` Sascha Hauer
2012-08-02 15:34       ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03  6:34         ` Sascha Hauer
2012-07-30 10:02   ` [PATCH 06/12] only compress default env in uncompressed images Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 07/12] decompressor: import malloc/free implementation for linux 3.4 Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2012-08-02 15:23     ` [PATCH 08/12] ARM: add early malloc support needed by the decompressor Sascha Hauer
2012-07-30 10:02   ` [PATCH 09/12] compressed image: add gzip support Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 10/12] at91: add lowlevel init to the pbl Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 11/12] kbuild: allow to have custom cppflags for pbl Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:02   ` [PATCH 12/12] arm: always enable the garbage collector " Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 10:38 ` [PATCH 00/12 v3] Add Pre-Bootloader support Juergen Beisert
2012-07-30 14:44   ` Thomas Petazzoni
2012-07-30 15:02     ` Jean-Christophe PLAGNIOL-VILLARD
2012-07-30 15:51       ` Juergen Beisert

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