From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Thu, 18 Nov 2010 16:59:48 +0000 Subject: [PATCH 1/5] ARM: pgtable: switch order of Linux vs hardware page tables In-Reply-To: References: <20101117172717.GF5308@n2100.arm.linux.org.uk> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 17 November 2010 17:28, Russell King - ARM Linux wrote: > This switches the ordering of the Linux vs hardware page tables in > each page, thereby eliminating some of the arithmetic in the page > table walks. ?As we now place the Linux page table at the beginning > of the page, we can deal with the offset in the pgt by simply masking > it away, along with the other control bits. [...] > -static inline void __pmd_populate(pmd_t *pmdp, unsigned long pmdval) > +static inline void __pmd_populate(pmd_t *pmdp, unsigned long pte, unsigned long prot) > ?{ > + ? ? ? unsigned long pmdval = (pte + PTE_HWTABLE_OFF) | prot; Since I'm introducing pmdval_t with LPAE patches, would it make sense in your patch to pass pteval_t or I should just keep it in my patches? -static inline void __pmd_populate(pmd_t *pmdp, unsigned long pmdval) +static inline void __pmd_populate(pmd_t *pmdp, pteval_t pte, unsigned long prot) -- Catalin