lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 6 May 2015 10:29:25 +0200 From: Matthias Brugger <matthias.bgg@...il.com> To: Yingjoe Chen <yingjoe.chen@...iatek.com> Cc: Mark Rutland <mark.rutland@....com>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Lorenzo Pieralisi <lorenzo.pieralisi@....com>, Russell King <linux@....linux.org.uk>, Arnd Bergmann <arnd@...db.de>, Pawel Moll <pawel.moll@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Catalin Marinas <catalin.marinas@....com>, Daniel Lezcano <daniel.lezcano@...aro.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Marc Carino <marc.ceeeee@...il.com>, Rob Herring <robh+dt@...nel.org>, linux-mediatek@...ts.infradead.org, Sascha Hauer <kernel@...gutronix.de>, Olof Johansson <olof@...om.net>, Thomas Gleixner <tglx@...utronix.de>, srv_heupstream <srv_heupstream@...iatek.com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, Jason Cooper <jason@...edaemon.net> Subject: Re: [PATCH 0/7] Add SMP bringup support for mt65xx socs 2015-05-06 9:59 GMT+02:00 Yingjoe Chen <yingjoe.chen@...iatek.com>: > On Wed, 2015-05-06 at 15:19 +0800, Yingjoe Chen wrote: >> Hi Matthias, > <...> >> > I tried on the mt8135 eval board but it fails to bring up the CPU. >> > >> > When booting: >> > [ 1.048588] CPU1: failed to come online >> > [ 2.049914] CPU2: failed to come online >> > [ 3.051245] CPU3: failed to come online >> >> >> Thanks for testing, and the config file you provided. >> It seems you are running THUMB2 kernel, unfortunately mt8135 trustzone >> firmware doesn't support jump to THUMB2 code directly. >> >> I can workaround this with the following patch. I'll include it in my >> next round. >> >> Joe.C >> >> -----8<---------------- >> diff --git a/arch/arm/mach-mediatek/platsmp.c >> b/arch/arm/mach-mediatek/platsmp.c >> index e266b3d..5dea55a 100644 >> --- a/arch/arm/mach-mediatek/platsmp.c >> +++ b/arch/arm/mach-mediatek/platsmp.c >> @@ -57,6 +57,18 @@ static const struct of_device_id mtk_smp_boot_infos[] >> __initconst = { >> static void __iomem *mtk_smp_base; >> static const struct mtk_smp_boot_info *mtk_smp_info; >> >> +#ifdef CONFIG_THUMB2_KERNEL >> +__asm__( >> + ".arm\n" >> + "mtk_secondary_startup_fixup:\n" >> + " b secondary_startup\n" >> + ".thumb\n" >> +); >> + >> +void mtk_secondary_startup_fixup(void); >> +#define secondary_startup mtk_secondary_startup_fixup >> +#endif > > > Replying myself. > > It seems kernel already have secondary_startup_arm which support this > usage. I'll use that in my next version instead. With this I was able to get the board up and running. I will try mt6589 ASAP. -- motzblog.wordpress.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists