[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] move PAGE_*_* macros to xen/page-defs.h
commit 35f1ce9c23bfa378e1a1e2cda939be67b8d3a121 Author: Sergej Proskurin <proskurin@xxxxxxxxxxxxx> AuthorDate: Thu Aug 3 12:27:15 2017 +0200 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Thu Aug 3 12:27:15 2017 +0200 move PAGE_*_* macros to xen/page-defs.h Move pre-existing PAGE_(SHIFT|SIZE|MASK|ALIGN)_(4K|64K) and introduce corresponding defines for 16K page granularity to/in a common place in xen/page-defs.h to allow later commits to use the consolidated defines. Signed-off-by: Sergej Proskurin <proskurin@xxxxxxxxxxxxx> Acked-by: Jan Beulich <jbeulich@xxxxxxxx> --- xen/include/xen/iommu.h | 15 +-------------- xen/include/xen/page-defs.h | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+), 14 deletions(-) diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h index 918ee99..0dac4f3 100644 --- a/xen/include/xen/iommu.h +++ b/xen/include/xen/iommu.h @@ -20,6 +20,7 @@ #define _IOMMU_H_ #include <xen/init.h> +#include <xen/page-defs.h> #include <xen/spinlock.h> #include <xen/pci.h> #include <public/hvm/ioreq.h> @@ -37,20 +38,6 @@ extern bool_t amd_iommu_perdev_intremap; extern unsigned int iommu_dev_iotlb_timeout; -#define IOMMU_PAGE_SIZE(sz) (1UL << PAGE_SHIFT_##sz) -#define IOMMU_PAGE_MASK(sz) (~(u64)0 << PAGE_SHIFT_##sz) -#define IOMMU_PAGE_ALIGN(sz, addr) (((addr) + ~PAGE_MASK_##sz) & PAGE_MASK_##sz) - -#define PAGE_SHIFT_4K (12) -#define PAGE_SIZE_4K IOMMU_PAGE_SIZE(4K) -#define PAGE_MASK_4K IOMMU_PAGE_MASK(4K) -#define PAGE_ALIGN_4K(addr) IOMMU_PAGE_ALIGN(4K, addr) - -#define PAGE_SHIFT_64K (16) -#define PAGE_SIZE_64K IOMMU_PAGE_SIZE(64K) -#define PAGE_MASK_64K IOMMU_PAGE_MASK(64K) -#define PAGE_ALIGN_64K(addr) IOMMU_PAGE_ALIGN(64K, addr) - int iommu_setup(void); int iommu_domain_init(struct domain *d); diff --git a/xen/include/xen/page-defs.h b/xen/include/xen/page-defs.h new file mode 100644 index 0000000..15a9077 --- /dev/null +++ b/xen/include/xen/page-defs.h @@ -0,0 +1,24 @@ +#ifndef __XEN_PAGE_DEFS_H__ +#define __XEN_PAGE_DEFS_H__ + +/* Helpers for different page granularities. */ +#define PAGE_SIZE_GRAN(gran) ((paddr_t)1 << PAGE_SHIFT_##gran) +#define PAGE_MASK_GRAN(gran) (-PAGE_SIZE_GRAN(gran)) +#define PAGE_ALIGN_GRAN(gran, addr) ((addr + ~PAGE_MASK_##gran) & PAGE_MASK_##gran) + +#define PAGE_SHIFT_4K 12 +#define PAGE_SIZE_4K PAGE_SIZE_GRAN(4K) +#define PAGE_MASK_4K PAGE_MASK_GRAN(4K) +#define PAGE_ALIGN_4K(addr) PAGE_ALIGN_GRAN(4K, addr) + +#define PAGE_SHIFT_16K 14 +#define PAGE_SIZE_16K PAGE_SIZE_GRAN(16K) +#define PAGE_MASK_16K PAGE_MASK_GRAN(16K) +#define PAGE_ALIGN_16K(addr) PAGE_ALIGN_GRAN(16K, addr) + +#define PAGE_SHIFT_64K 16 +#define PAGE_SIZE_64K PAGE_SIZE_GRAN(64K) +#define PAGE_MASK_64K PAGE_MASK_GRAN(64K) +#define PAGE_ALIGN_64K(addr) PAGE_ALIGN_GRAN(64K, addr) + +#endif /* __XEN_PAGE_DEFS_H__ */ -- generated by git-patchbot for /home/xen/git/xen.git#master _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxx https://lists.xenproject.org/xen-changelog
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