From: Gregory CLEMENT <gregory.clement@bootlin.com>
To: Paul Burton <paulburton@kernel.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-mips@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: "Vladimir Kondratiev" <vladimir.kondratiev@intel.com>,
"Tawfik Bayouk" <tawfik.bayouk@mobileye.com>,
"Alexandre Belloni" <alexandre.belloni@bootlin.com>,
"Théo Lebrun" <theo.lebrun@bootlin.com>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Gregory CLEMENT" <gregory.clement@bootlin.com>
Subject: [PATCH 01/11] MIPS: compressed: Use correct instruction for 64 bit code
Date: Wed, 4 Oct 2023 18:10:28 +0200 [thread overview]
Message-ID: <20231004161038.2818327-2-gregory.clement@bootlin.com> (raw)
In-Reply-To: <20231004161038.2818327-1-gregory.clement@bootlin.com>
The code clearing BSS already use macro or use correct instruction
depending id the CPU is 32 bits or 64 bits. However, a few
instructions remained 32 bits only.
By using the accurate MACRO, it is now possible to deal with memory
address beyond 32 bits. As a side effect, when using 64bits processor,
it also divides the loop number needed to clear the BSS by 2.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
arch/mips/boot/compressed/head.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S
index 5795d0af1e1b..d237a834b85e 100644
--- a/arch/mips/boot/compressed/head.S
+++ b/arch/mips/boot/compressed/head.S
@@ -25,8 +25,8 @@
/* Clear BSS */
PTR_LA a0, _edata
PTR_LA a2, _end
-1: sw zero, 0(a0)
- addiu a0, a0, 4
+1: PTR_S zero, 0(a0)
+ PTR_ADDIU a0, a0, PTRSIZE
bne a2, a0, 1b
PTR_LA a0, (.heap) /* heap address */
--
2.40.1
next prev parent reply other threads:[~2023-10-04 16:10 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-04 16:10 [PATCH 00/11] Add support for the Mobileye EyeQ5 SoC Gregory CLEMENT
2023-10-04 16:10 ` Gregory CLEMENT [this message]
2023-10-05 6:40 ` [PATCH 01/11] MIPS: compressed: Use correct instruction for 64 bit code Philippe Mathieu-Daudé
2023-10-24 1:49 ` Florian Fainelli
2023-10-04 16:10 ` [PATCH 02/11] MIPS: use virtual addresses from xkphys for MIPS64 Gregory CLEMENT
2023-10-12 15:34 ` Thomas Bogendoerfer
2023-10-22 11:52 ` Jiaxun Yang
2023-10-22 11:39 ` Jiaxun Yang
2023-10-23 15:45 ` Gregory CLEMENT
2023-10-22 16:42 ` Jiaxun Yang
2023-10-24 16:08 ` Gregory CLEMENT
2023-10-04 16:10 ` [PATCH 03/11] MIPS: support RAM beyond 32-bit Gregory CLEMENT
2023-10-06 11:21 ` Arnd Bergmann
2023-10-07 20:14 ` Jiaxun Yang
2023-10-09 15:59 ` Gregory CLEMENT
2023-10-10 8:55 ` Jiaxun Yang
2023-10-11 14:46 ` Gregory CLEMENT
2023-10-12 20:40 ` Jiaxun Yang
2023-10-24 9:05 ` Maciej W. Rozycki
2023-10-04 16:10 ` [PATCH 04/11] dt-bindings: Add vendor prefix for Mobileye Vision Technologies Ltd Gregory CLEMENT
2023-10-05 6:34 ` Philippe Mathieu-Daudé
2023-10-06 16:32 ` Rob Herring
2023-10-04 16:10 ` [PATCH 05/11] dt-bindings: mips: cpu: Add I-Class I6500 Multiprocessor Core Gregory CLEMENT
2023-10-05 6:31 ` Philippe Mathieu-Daudé
2023-10-05 14:39 ` Serge Semin
2023-10-05 14:51 ` Gregory CLEMENT
2023-10-05 15:23 ` Serge Semin
2023-10-06 10:48 ` Arnd Bergmann
2023-10-06 16:40 ` Rob Herring
2023-10-09 15:32 ` Gregory CLEMENT
2023-10-09 18:48 ` Arnd Bergmann
2023-10-10 10:13 ` Serge Semin
2023-10-05 14:47 ` Sergio Paracuellos
2023-10-04 16:10 ` [PATCH 06/11] dt-bindings: mips: Add bindings for Mobileye SoCs Gregory CLEMENT
2023-10-04 16:47 ` Rob Herring
2023-10-05 14:55 ` Gregory CLEMENT
2023-10-06 16:50 ` Rob Herring
2023-10-04 16:10 ` [PATCH 07/11] dt-bindings: mfd: syscon: Document EyeQ5 OLB Gregory CLEMENT
2023-10-06 16:54 ` Rob Herring
2023-10-09 15:49 ` Gregory CLEMENT
2023-10-04 16:10 ` [PATCH 08/11] MIPS: mobileye: Add EyeQ5 dtsi Gregory CLEMENT
2023-10-04 16:41 ` Rob Herring
2023-10-05 15:17 ` Gregory CLEMENT
2023-10-04 16:10 ` [PATCH 09/11] MIPS: mobileye: Add EPM5 device tree Gregory CLEMENT
2023-10-06 11:18 ` Arnd Bergmann
2023-10-09 14:51 ` Gregory CLEMENT
2023-10-04 16:10 ` [PATCH 10/11] MIPS: generic: Add support for Mobileye EyeQ5 Gregory CLEMENT
2023-10-05 0:08 ` kernel test robot
2023-10-06 14:47 ` Arnd Bergmann
2023-10-09 14:58 ` Gregory CLEMENT
2023-10-04 16:10 ` [PATCH 11/11] MAINTAINERS: Add entry for Mobileye MIPS SoCs Gregory CLEMENT
2023-10-06 11:11 ` Arnd Bergmann
2023-10-09 15:06 ` Gregory CLEMENT
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=20231004161038.2818327-2-gregory.clement@bootlin.com \
--to=gregory.clement@bootlin.com \
--cc=alexandre.belloni@bootlin.com \
--cc=devicetree@vger.kernel.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=paulburton@kernel.org \
--cc=robh+dt@kernel.org \
--cc=tawfik.bayouk@mobileye.com \
--cc=theo.lebrun@bootlin.com \
--cc=thomas.petazzoni@bootlin.com \
--cc=tsbogend@alpha.franken.de \
--cc=vladimir.kondratiev@intel.com \
/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;
as well as URLs for NNTP newsgroup(s).