Re: [PATCH v7 3/7] powerpc/mm: Introduce _PAGE_LARGE software pte bits
From: Balbir Singh <bsingharora@gmail.com>
Date: 2016-11-30 00:50:39
On 30/11/16 11:35, Benjamin Herrenschmidt wrote:
On Wed, 2016-11-30 at 11:14 +1100, Balbir Singh wrote:quoted
quoted
+#define _RPAGE_RSV1 0x1000000000000000UL +#define _RPAGE_RSV2 0x0800000000000000UL +#define _RPAGE_RSV3 0x0400000000000000UL +#define _RPAGE_RSV4 0x0200000000000000UL +We use the top 4 bits and not the _SW bits?Correct, welcome to the discussion we've been having the last 2 weeks :-)
I thought we were following Paul's suggestion here https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-November/151620.html and I also noticed https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-November/151624.html My bad, I thought we had two SW bits to use for DD1 Balbir Singh.