Re: [PATCH 2/3] powerpc/44x: don't use tlbivax on AMP systems
From: Tony Breeds <hidden>
Date: 2011-07-13 05:57:03
From: Tony Breeds <hidden>
Date: 2011-07-13 05:57:03
On Wed, Jul 13, 2011 at 12:48:21AM -0500, Kumar Gala wrote:
On Jul 4, 2011, at 11:38 PM, Tony Breeds wrote:quoted
+#ifdef CONFIG_PPC_47x +void __init early_init_mmu_47x(void) +{ +#ifdef CONFIG_SMP + unsigned long root = of_get_flat_dt_root(); + if (of_get_flat_dt_prop(root, "cooperative-partition", NULL)) + mmu_clear_feature(MMU_FTR_USE_TLBIVAX_BCAST); +#endif /* CONFIG_SMP */ +} +#endif /* CONFIG_PPC_47x */ +Is this device tree prop spec'd anywhere?
I don't think this has been formally written up, but this was discussed in Feb. this year http://patchwork.ozlabs.org/patch/81355/ Yours Tony