From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lu Baolu Subject: [PATCH v5 03/12] iommu/vt-d: Move page table helpers into header Date: Wed, 28 Nov 2018 11:54:40 +0800 Message-ID: <20181128035449.10226-4-baolu.lu@linux.intel.com> References: <20181128035449.10226-1-baolu.lu@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20181128035449.10226-1-baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Joerg Roedel , David Woodhouse Cc: kevin.tian-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, Jean-Philippe Brucker , sanjay.k.kumar-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, yi.y.sun-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, jacob.jun.pan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org List-Id: iommu@lists.linux-foundation.org So that they could also be used in other source files. Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Cc: Liu Yi L Cc: Sanjay Kumar Signed-off-by: Lu Baolu Reviewed-by: Ashok Raj Reviewed-by: Kevin Tian --- drivers/iommu/intel-iommu.c | 43 ------------------------------------- include/linux/intel-iommu.h | 43 +++++++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+), 43 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 656ef01dfda0..4866bdeb932d 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -290,49 +290,6 @@ static inline void context_clear_entry(struct context_entry *context) context->hi = 0; } -/* - * 0: readable - * 1: writable - * 2-6: reserved - * 7: super page - * 8-10: available - * 11: snoop behavior - * 12-63: Host physcial address - */ -struct dma_pte { - u64 val; -}; - -static inline void dma_clear_pte(struct dma_pte *pte) -{ - pte->val = 0; -} - -static inline u64 dma_pte_addr(struct dma_pte *pte) -{ -#ifdef CONFIG_64BIT - return pte->val & VTD_PAGE_MASK; -#else - /* Must have a full atomic 64-bit read */ - return __cmpxchg64(&pte->val, 0ULL, 0ULL) & VTD_PAGE_MASK; -#endif -} - -static inline bool dma_pte_present(struct dma_pte *pte) -{ - return (pte->val & 3) != 0; -} - -static inline bool dma_pte_superpage(struct dma_pte *pte) -{ - return (pte->val & DMA_PTE_LARGE_PAGE); -} - -static inline int first_pte_in_page(struct dma_pte *pte) -{ - return !((unsigned long)pte & ~VTD_PAGE_MASK); -} - /* * This domain is a statically identity mapping domain. * 1. This domain creats a static 1:1 mapping to all usable memory. diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 8c9b6063d275..b4da61385ebf 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -590,6 +590,49 @@ static inline void __iommu_flush_cache( clflush_cache_range(addr, size); } +/* + * 0: readable + * 1: writable + * 2-6: reserved + * 7: super page + * 8-10: available + * 11: snoop behavior + * 12-63: Host physcial address + */ +struct dma_pte { + u64 val; +}; + +static inline void dma_clear_pte(struct dma_pte *pte) +{ + pte->val = 0; +} + +static inline u64 dma_pte_addr(struct dma_pte *pte) +{ +#ifdef CONFIG_64BIT + return pte->val & VTD_PAGE_MASK; +#else + /* Must have a full atomic 64-bit read */ + return __cmpxchg64(&pte->val, 0ULL, 0ULL) & VTD_PAGE_MASK; +#endif +} + +static inline bool dma_pte_present(struct dma_pte *pte) +{ + return (pte->val & 3) != 0; +} + +static inline bool dma_pte_superpage(struct dma_pte *pte) +{ + return (pte->val & DMA_PTE_LARGE_PAGE); +} + +static inline int first_pte_in_page(struct dma_pte *pte) +{ + return !((unsigned long)pte & ~VTD_PAGE_MASK); +} + extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev); extern int dmar_find_matched_atsr_unit(struct pci_dev *dev); -- 2.17.1