[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v4 07/11] xen: arm: implement smp initialisation callbacks for exynos5
On 09/27/2013 02:29 PM, Ian Campbell wrote: > These were removed in "xen: arm: rewrite start of day page table and cpu bring > up". This code is based on that assembly code but is compile tested only. > > Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Reviewed-by: Julien Grall <julien.grall@xxxxxxxxxx> > --- > xen/arch/arm/platforms/exynos5.c | 31 +++++++++++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > > diff --git a/xen/arch/arm/platforms/exynos5.c > b/xen/arch/arm/platforms/exynos5.c > index 36d2325..a2bf916 100644 > --- a/xen/arch/arm/platforms/exynos5.c > +++ b/xen/arch/arm/platforms/exynos5.c > @@ -65,6 +65,35 @@ static int exynos5_specific_mapping(struct domain *d) > return 0; > } > > +static int __init exynos5_smp_init(void) > +{ > + void __iomem *sysram; > + > + sysram = ioremap_nocache(S5P_PA_SYSRAM, PAGE_SIZE); > + if ( !sysram ) > + { > + dprintk(XENLOG_ERR, "Unable to map exynos5 MMIO\n"); > + return -EFAULT; > + } > + > + printk("Set SYSRAM to %"PRIpaddr" (%p)\n", > + __pa(init_secondary), init_secondary); > + writel(__pa(init_secondary), sysram); > + > + iounmap(sysram); > + > + return 0; > +} > + > +static int __init exynos5_cpu_up(int cpu) > +{ > + /* Nothing to do here, the generic sev() will suffice to kick CPUs > + * out of either the firmware or our own smp_up_cpu gate, > + * depending on where they have ended up. */ > + > + return 0; > +} > + > static void exynos5_reset(void) > { > void __iomem *pmu; > @@ -107,6 +136,8 @@ PLATFORM_START(exynos5, "SAMSUNG EXYNOS5") > .compatible = exynos5_dt_compat, > .init_time = exynos5_init_time, > .specific_mapping = exynos5_specific_mapping, > + .smp_init = exynos5_smp_init, > + .cpu_up = exynos5_cpu_up, > .reset = exynos5_reset, > .quirks = exynos5_quirks, > .blacklist_dev = exynos5_blacklist_dev, > -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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