On Fri, Nov 15, 2013 at 8:12 AM, Santosh Shilimkar <santosh.shilimkar@xxxxxx> wrote: > On Friday 15 November 2013 11:11 AM, Tony Lindgren wrote: >> * Taras Kondratiuk <taras.kondratiuk@xxxxxxxxxx> [131115 08:03]: >>> On 11/15/2013 05:36 PM, Tony Lindgren wrote: >>>> * Tony Lindgren <tony@xxxxxxxxxxx> [131114 10:36]: >>>>> * Grygorii Strashko <grygorii.strashko@xxxxxx> [131022 12:09]: >>>>>> The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859 >>>>>> "ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC ..." >>>>>> need to be applied not only when system is booting, but when MPUSS hits >>>>>> OSWR state through CPUIdle too. Without this WA the same issue is >>>>>> reproduced now on boards PandaES and Tablet/Blaze with SOM OMAP4460 >>>>>> when CONFIG_CPU_IDLE is enabled. >>>>>> After MPUSS has enterred OSWR and waken up: >>>>>> - GIC distributor became disabled forever >>>>>> - scheduling is not performed any more >>>>>> >>>>>> Cc: Kevin Hilman <khilman@xxxxxxxxxx> >>>>>> Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> >>>>>> Reported-by: Taras Kondratiuk <taras.kondratiuk@xxxxxxxxxx> >>>>>> Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx> >>>>> >>>>> Applying into omap-for-v3.13/fixes thanks. >>>> >>>> Hmm looks like this breaks the build with randconfigs at least >>>> with the attached .config, so dropping for now. >>> >>> Hi Tony >>> Have you forgot to attach .config? >> >> Oops, sorry looks like I removed it already as I rebuilt the tree >> and started a new set of randconfig build tests. >> >>>> arch/arm/mach-omap2/built-in.o: In function `omap_enter_idle_coupled': >>>> :(.text+0xb48c): undefined reference to `pm44xx_errata' >>> >>> I assume that .config doesn't have CONFIG_SMP enabled while >>> pm44xx_errata is defined in omap-smp.c. >>> I think it should be a separate patch to move pm44xx_errata somewhere >>> else, so this patch will remain the same. >> >> Yes something like that probably. Sounds like that should be then >> patches before this fix. >> >>> Btw, do we need omap_enter_idle_coupled() in UP? >> >> That should be checked, am43xx may need it. >> > Nope. omap_enter_idle_coupled() is needed only for SMP > systems. UP don't need couple idle functionality as > such. So what's the status of this fix and dependencies? Both linux-next[1] and arm-soc/for-next[2] are failing boot tests on omap4460/panda-es because multi_v7_defconfig now has CPUidle enabled by default. Kevin [1] http://lists.linaro.org/pipermail/kernel-build-reports/2014-January/001891.html [2] http://lists.linaro.org/pipermail/kernel-build-reports/2014-January/001898.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
