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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 27/34] ARM pbl: Use dynamic parameters for early malloc space
Date: Sun, 27 Jan 2013 11:46:56 +0100	[thread overview]
Message-ID: <1359283623-1782-28-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1359283623-1782-1-git-send-email-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/cpu/start-pbl.c |   12 ++++++++----
 arch/arm/cpu/start.c     |    1 +
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/arch/arm/cpu/start-pbl.c b/arch/arm/cpu/start-pbl.c
index 1900daa..6610be6 100644
--- a/arch/arm/cpu/start-pbl.c
+++ b/arch/arm/cpu/start-pbl.c
@@ -128,10 +128,6 @@ static void barebox_uncompress(void *compressed_start, unsigned int len)
 	 */
 	int use_mmu = 0;
 
-	/* 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;
-
 	ttb = (void *)((free_mem_ptr - 0x4000) & ~0x3fff);
 
 	if (use_mmu)
@@ -154,6 +150,10 @@ static noinline __noreturn void __barebox_arm_entry(uint32_t membase,
 	uint32_t offset;
 	uint32_t pg_start, pg_end, pg_len;
 	void __noreturn (*barebox)(uint32_t, uint32_t, uint32_t);
+	uint32_t endmem = membase + memsize;
+
+	endmem -= ARM_RESERVE_MEM_SIZE;
+	endmem -= STACK_SIZE; /* stack */
 
 	/* Get offset between linked address and runtime address */
 	offset = get_runtime_offset();
@@ -173,6 +173,10 @@ static noinline __noreturn void __barebox_arm_entry(uint32_t membase,
 
 	setup_c();
 
+	endmem -= SZ_128K; /* early malloc */
+	free_mem_ptr = endmem;
+	free_mem_end_ptr = free_mem_ptr + SZ_128K;
+
 	barebox_uncompress((void *)pg_start, pg_len);
 
 	if (IS_ENABLED(CONFIG_THUMB2_BAREBOX))
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index 530fb09..b77b070 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -35,6 +35,7 @@ static noinline __noreturn void __start(uint32_t membase, uint32_t memsize,
 
 	setup_c();
 
+	endmem -= ARM_RESERVE_MEM_SIZE;
 	arm_stack_top = endmem;
 	endmem -= STACK_SIZE; /* Stack */
 
-- 
1.7.10.4


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  parent reply	other threads:[~2013-01-27 10:47 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-27 10:46 [PATCH] Add new ARM entry point for barebox Sascha Hauer
2013-01-27 10:46 ` [PATCH 01/34] ARM: Add new " Sascha Hauer
2013-01-27 10:46 ` [PATCH 02/34] ARM: add __noreturn to board_init_lowlevel_return Sascha Hauer
2013-01-27 10:46 ` [PATCH 03/34] ARM i.MX: Use SRAM stack in lowlevel code Sascha Hauer
2013-01-27 10:46 ` [PATCH 04/34] ARM i.MX: Add i.MX specific entry point for barebox Sascha Hauer
2013-01-27 10:46 ` [PATCH 05/34] ARM i.MX: prepare external nand boot for SoC specific entry Sascha Hauer
2013-01-27 10:46 ` [PATCH 06/34] ARM i.MX boards: switch to barebox_arm_entry Sascha Hauer
2013-01-27 10:46 ` [PATCH 07/34] ARM MXS " Sascha Hauer
2013-01-27 10:46 ` [PATCH 08/34] ARM OMAP " Sascha Hauer
2013-01-27 10:46 ` [PATCH 09/34] ARM Samsung " Sascha Hauer
2013-01-27 10:46 ` [PATCH 10/34] ARM PXA " Sascha Hauer
2013-01-27 10:46 ` [PATCH 11/34] ARM ep93xx " Sascha Hauer
2013-01-27 10:46 ` [PATCH 12/34] ARM tegra " Sascha Hauer
2013-01-27 10:46 ` [PATCH 13/34] ARM nomadik " Sascha Hauer
2013-01-27 10:46 ` [PATCH 14/34] ARM versatile " Sascha Hauer
2013-01-27 10:46 ` [PATCH 15/34] ARM netx " Sascha Hauer
2013-01-27 10:46 ` [PATCH 16/34] ARM clep7212: " Sascha Hauer
2013-01-27 16:32   ` Alexander Shiyan
2013-01-28  7:41     ` Sascha Hauer
2013-01-27 10:46 ` [PATCH 17/34] ARM raspberrypi: " Sascha Hauer
2013-01-27 10:46 ` [PATCH 18/34] ARM AT91 mmccpu: Fix non existing define Sascha Hauer
2013-01-27 10:46 ` [PATCH 19/34] ARM AT91: switch to barebox_arm_entry part1 Sascha Hauer
2013-01-27 10:51   ` Jean-Christophe PLAGNIOL-VILLARD
2013-01-27 11:09     ` Sascha Hauer
2013-01-27 10:46 ` [PATCH 20/34] ARM AT91: switch at91rm9200 board to barebox_arm_entry Sascha Hauer
2013-01-27 10:46 ` [PATCH 21/34] ARM AT91: switch remaining boards " Sascha Hauer
2013-01-27 16:24   ` Jean-Christophe PLAGNIOL-VILLARD
2013-01-27 10:46 ` [PATCH 22/34] ARM: remove now unused MACH_[HAS|DO]_LOWLEVEL_INIT Sascha Hauer
2013-01-27 10:46 ` [PATCH 23/34] ARM start-pbl: make board_init_lowlevel_return static Sascha Hauer
2013-01-27 10:46 ` [PATCH 24/34] ARM start-pbl: call uncompressed binary with arguments Sascha Hauer
2013-01-27 10:46 ` [PATCH 25/34] ARM start: pickup parameters from pbl Sascha Hauer
2013-01-27 10:46 ` [PATCH 26/34] ARM: Setup stack at end of SDRAM Sascha Hauer
2013-01-27 10:46 ` Sascha Hauer [this message]
2013-01-27 10:46 ` [PATCH 28/34] ARM mmu: pickup already enabled mmu Sascha Hauer
2013-01-27 10:46 ` [PATCH 29/34] ARM: Factor out early mmu code Sascha Hauer
2013-01-27 14:54   ` Alexander Aring
2013-01-28  7:35     ` Sascha Hauer
2013-01-27 10:46 ` [PATCH 30/34] ARM: Enable mmu early Sascha Hauer
2013-01-27 10:47 ` [PATCH 31/34] ARM: Automatically determine malloc size Sascha Hauer
2013-01-27 10:47 ` [PATCH 32/34] generic memory layout: fix deps for [MALLOC|STACK]_BASE Sascha Hauer
2013-01-27 10:47 ` [PATCH 33/34] ARM: disable HAVE_CONFIGURABLE_MEMORY_LAYOUT Sascha Hauer
2013-01-27 10:47 ` [PATCH 34/34] ARM pbl: inline decompress function Sascha Hauer
2013-02-01  7:59 [PATCH v2] Add new ARM entry point for barebox Sascha Hauer
2013-02-01  7:59 ` [PATCH 27/34] ARM pbl: Use dynamic parameters for early malloc space Sascha Hauer

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