From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [PATCH 09/26 v6] mips: add a option to support not reserving malloc space on initial stack
Date: Wed, 8 Apr 2020 10:09:25 +0200 [thread overview]
Message-ID: <20200408080942.7694-10-sr@denx.de> (raw)
In-Reply-To: <20200408080942.7694-1-sr@denx.de>
From: Weijie Gao <weijie.gao@mediatek.com>
The initial stack on some platforms is too small to hold a large malloc
space. This patch adds a option to allow these platforms not reserving the
malloc space on initial stack. These platforms should set the malloc base
after DRAM is usable.
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
Changes since v3: none
arch/mips/Kconfig | 18 ++++++++++++++++++
arch/mips/cpu/start.S | 6 ++++--
2 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index bf30a56101..5f82caf8be 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -317,6 +317,24 @@ config NEW_EXCEPTION_VECTOR_BASE
help
The exception vector base to be restored before booting linux kernel
+config INIT_STACK_WITHOUT_MALLOC_F
+ bool "Do not reserve malloc space on initial stack"
+ default n
+ help
+ Enable this option if you don't want to reserve malloc space on
+ initial stack. This is useful if the initial stack can't hold large
+ malloc space. Platform should set the malloc_base later when DRAM is
+ ready to use.
+
+config SPL_INIT_STACK_WITHOUT_MALLOC_F
+ bool "Do not reserve malloc space on initial stack in SPL"
+ default n
+ help
+ Enable this option if you don't want to reserve malloc space on
+ initial stack. This is useful if the initial stack can't hold large
+ malloc space. Platform should set the malloc_base later when DRAM is
+ ready to use.
+
endmenu
menu "OS boot interface"
diff --git a/arch/mips/cpu/start.S b/arch/mips/cpu/start.S
index dd93df9e4a..6de9a2f362 100644
--- a/arch/mips/cpu/start.S
+++ b/arch/mips/cpu/start.S
@@ -59,7 +59,8 @@
sp, sp, GD_SIZE # reserve space for gd
and sp, sp, t0 # force 16 byte alignment
move k0, sp # save gd pointer
-#if CONFIG_VAL(SYS_MALLOC_F_LEN)
+#if CONFIG_VAL(SYS_MALLOC_F_LEN) && \
+ !CONFIG_IS_ENABLED(INIT_STACK_WITHOUT_MALLOC_F)
li t2, CONFIG_VAL(SYS_MALLOC_F_LEN)
PTR_SUBU \
sp, sp, t2 # reserve space for early malloc
@@ -75,7 +76,8 @@
blt t0, t1, 1b
nop
-#if CONFIG_VAL(SYS_MALLOC_F_LEN)
+#if CONFIG_VAL(SYS_MALLOC_F_LEN) && \
+ !CONFIG_IS_ENABLED(INIT_STACK_WITHOUT_MALLOC_F)
PTR_S sp, GD_MALLOC_BASE(k0) # gd->malloc_base offset
#endif
.endm
--
2.26.0
next prev parent reply other threads:[~2020-04-08 8:09 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-08 8:09 [PATCH 00/26 v6] Refactor the architecture parts of mt7628 Stefan Roese
2020-04-08 8:09 ` [PATCH 01/26 v6] mips: add support to restore exception vector base before booting linux Stefan Roese
2020-04-08 8:09 ` [PATCH 02/26 v6] mips: mtmips: add predefined i-cache/d-cache size and linesize Stefan Roese
2020-04-08 8:09 ` [PATCH 03/26 v6] mips: add an option to support initialize SRAM for initial stack Stefan Roese
2020-04-08 8:09 ` [PATCH 04/26 v6] mips: start.S: avoid overwriting outside gd when clearing global data in stack Stefan Roese
2020-04-08 8:09 ` [PATCH 05/26 v6] sysreset: add reset controller based reboot driver Stefan Roese
2020-04-08 8:09 ` [PATCH 06/26 v6] mips: mtmips: make use of sysreset-resetctrl for mt7628 soc Stefan Roese
2020-04-08 8:09 ` [PATCH 07/26 v6] configs: enable CONFIG_RESTORE_EXCEPTION_VECTOR_BASE for all mtmips boards Stefan Roese
2020-04-08 8:09 ` [PATCH 08/26 v6] mips: add a mtmips-specific field to architecture-specific global data Stefan Roese
2020-04-08 8:09 ` Stefan Roese [this message]
2020-04-08 8:09 ` [PATCH 10/26 v6] mips: mtmips: rewrite lowlevel codes of mt7628 Stefan Roese
2020-04-08 8:09 ` [PATCH 11/26 v6] dts: mtmips: add alternative pinmux node for uart2 Stefan Roese
2020-04-08 8:09 ` [PATCH 12/26 v6] mips: enable support for appending dtb to spl binary Stefan Roese
2020-04-08 8:09 ` [PATCH 13/26 v6] mips: add an option to enable u_boot_list section for SPL loaders in u-boot-spl.lds Stefan Roese
2020-04-08 8:09 ` [PATCH 14/26 v6] lib: enable lzma decompression support for SPL build Stefan Roese
2020-04-08 8:09 ` [PATCH 15/26 v6] Makefile: add support to generate LZMA compressed u-boot image Stefan Roese
2020-04-08 8:09 ` [PATCH 16/26 v6] tools: binman: add etype file for u-boot-lzma-img Stefan Roese
2020-04-08 8:09 ` [PATCH 17/26 v6] spl: Extract legacy image handling into separate file Stefan Roese
2020-04-08 8:09 ` [PATCH 18/26 v6] spl: spl_legacy: Use IS_ENABLED() to remove #ifdef Stefan Roese
2020-04-08 8:09 ` [PATCH 19/26 v6] spl: spl_nor: Copy image header to local struct Stefan Roese
2020-04-09 7:24 ` Simon Goldschmidt
2020-04-08 8:09 ` [PATCH 20/26 v6] spl: spl_nor: Move legacy image loading into spl_legacy.c Stefan Roese
2020-04-09 18:51 ` Daniel Schwierzeck
2020-04-10 8:02 ` Stefan Roese
2020-04-08 8:09 ` [PATCH 21/26 v6] spl: spl_legacy: Add lzma decompression support for legacy image Stefan Roese
2020-04-08 8:09 ` [PATCH 22/26 v6] spl: spl_legacy: Add cache flush after reading U-Boot image Stefan Roese
2020-04-09 7:29 ` Simon Goldschmidt
2020-04-09 7:43 ` Stefan Roese
2020-04-09 16:47 ` Daniel Schwierzeck
2020-04-10 7:50 ` Stefan Roese
2020-04-09 18:15 ` Simon Goldschmidt
2020-04-08 8:09 ` [PATCH 23/26 v6] mips: mtmips: add SPL support Stefan Roese
2020-04-08 8:09 ` [PATCH 24/26 v6] mips: mtmips: enable SPL for all boards Stefan Roese
2020-04-08 8:09 ` [PATCH 25/26 v6] mips: mtmips: add support for mt7628-rfb Stefan Roese
2020-04-08 8:09 ` [PATCH 26/26 v6] mips: mtmips: Increase CONFIG_SPL_SYS_MALLOC_F_LEN Stefan Roese
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200408080942.7694-10-sr@denx.de \
--to=sr@denx.de \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox