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Date: Mon, 10 Dec 2018 09:58:57 +0800 From: Lu Baolu <baolu.lu@...ux.intel.com> To: Joerg Roedel <joro@...tes.org>, David Woodhouse <dwmw2@...radead.org> Cc: ashok.raj@...el.com, sanjay.k.kumar@...el.com, jacob.jun.pan@...el.com, kevin.tian@...el.com, yi.l.liu@...el.com, yi.y.sun@...el.com, peterx@...hat.com, Jean-Philippe Brucker <jean-philippe.brucker@....com>, iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org, Lu Baolu <baolu.lu@...ux.intel.com>, Jacob Pan <jacob.jun.pan@...ux.intel.com> Subject: [PATCH v6 03/12] iommu/vt-d: Move page table helpers into header So that they could also be used in other source files. Cc: Ashok Raj <ashok.raj@...el.com> Cc: Jacob Pan <jacob.jun.pan@...ux.intel.com> Cc: Kevin Tian <kevin.tian@...el.com> Cc: Liu Yi L <yi.l.liu@...el.com> Cc: Sanjay Kumar <sanjay.k.kumar@...el.com> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com> Reviewed-by: Ashok Raj <ashok.raj@...el.com> Reviewed-by: Kevin Tian <kevin.tian@...el.com> --- 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 73d7c15bf737..52cdb0e077f2 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
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