diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/iopgtable.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/iopgtable.h | 120 | 
1 files changed, 0 insertions, 120 deletions
diff --git a/arch/arm/plat-omap/include/plat/iopgtable.h b/arch/arm/plat-omap/include/plat/iopgtable.h deleted file mode 100644 index 66a813977d5..00000000000 --- a/arch/arm/plat-omap/include/plat/iopgtable.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * omap iommu: pagetable definitions - * - * Copyright (C) 2008-2010 Nokia Corporation - * - * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __PLAT_OMAP_IOMMU_H -#define __PLAT_OMAP_IOMMU_H - -/* - * "L2 table" address mask and size definitions. - */ -#define IOPGD_SHIFT		20 -#define IOPGD_SIZE		(1UL << IOPGD_SHIFT) -#define IOPGD_MASK		(~(IOPGD_SIZE - 1)) - -/* - * "section" address mask and size definitions. - */ -#define IOSECTION_SHIFT		20 -#define IOSECTION_SIZE		(1UL << IOSECTION_SHIFT) -#define IOSECTION_MASK		(~(IOSECTION_SIZE - 1)) - -/* - * "supersection" address mask and size definitions. - */ -#define IOSUPER_SHIFT		24 -#define IOSUPER_SIZE		(1UL << IOSUPER_SHIFT) -#define IOSUPER_MASK		(~(IOSUPER_SIZE - 1)) - -#define PTRS_PER_IOPGD		(1UL << (32 - IOPGD_SHIFT)) -#define IOPGD_TABLE_SIZE	(PTRS_PER_IOPGD * sizeof(u32)) - -/* - * "small page" address mask and size definitions. - */ -#define IOPTE_SHIFT		12 -#define IOPTE_SIZE		(1UL << IOPTE_SHIFT) -#define IOPTE_MASK		(~(IOPTE_SIZE - 1)) - -/* - * "large page" address mask and size definitions. - */ -#define IOLARGE_SHIFT		16 -#define IOLARGE_SIZE		(1UL << IOLARGE_SHIFT) -#define IOLARGE_MASK		(~(IOLARGE_SIZE - 1)) - -#define PTRS_PER_IOPTE		(1UL << (IOPGD_SHIFT - IOPTE_SHIFT)) -#define IOPTE_TABLE_SIZE	(PTRS_PER_IOPTE * sizeof(u32)) - -#define IOPAGE_MASK		IOPTE_MASK - -/** - * omap_iommu_translate() - va to pa translation - * @d:		omap iommu descriptor - * @va:		virtual address - * @mask:	omap iommu descriptor mask - * - * va to pa translation - */ -static inline phys_addr_t omap_iommu_translate(u32 d, u32 va, u32 mask) -{ -	return (d & mask) | (va & (~mask)); -} - -/* - * some descriptor attributes. - */ -#define IOPGD_TABLE		(1 << 0) -#define IOPGD_SECTION		(2 << 0) -#define IOPGD_SUPER		(1 << 18 | 2 << 0) - -#define iopgd_is_table(x)	(((x) & 3) == IOPGD_TABLE) -#define iopgd_is_section(x)	(((x) & (1 << 18 | 3)) == IOPGD_SECTION) -#define iopgd_is_super(x)	(((x) & (1 << 18 | 3)) == IOPGD_SUPER) - -#define IOPTE_SMALL		(2 << 0) -#define IOPTE_LARGE		(1 << 0) - -#define iopte_is_small(x)	(((x) & 2) == IOPTE_SMALL) -#define iopte_is_large(x)	(((x) & 3) == IOPTE_LARGE) - -/* to find an entry in a page-table-directory */ -#define iopgd_index(da)		(((da) >> IOPGD_SHIFT) & (PTRS_PER_IOPGD - 1)) -#define iopgd_offset(obj, da)	((obj)->iopgd + iopgd_index(da)) - -#define iopgd_page_paddr(iopgd)	(*iopgd & ~((1 << 10) - 1)) -#define iopgd_page_vaddr(iopgd)	((u32 *)phys_to_virt(iopgd_page_paddr(iopgd))) - -/* to find an entry in the second-level page table. */ -#define iopte_index(da)		(((da) >> IOPTE_SHIFT) & (PTRS_PER_IOPTE - 1)) -#define iopte_offset(iopgd, da)	(iopgd_page_vaddr(iopgd) + iopte_index(da)) - -static inline u32 iotlb_init_entry(struct iotlb_entry *e, u32 da, u32 pa, -				   u32 flags) -{ -	memset(e, 0, sizeof(*e)); - -	e->da		= da; -	e->pa		= pa; -	e->valid	= 1; -	/* FIXME: add OMAP1 support */ -	e->pgsz		= flags & MMU_CAM_PGSZ_MASK; -	e->endian	= flags & MMU_RAM_ENDIAN_MASK; -	e->elsz		= flags & MMU_RAM_ELSZ_MASK; -	e->mixed	= flags & MMU_RAM_MIXED_MASK; - -	return iopgsz_to_bytes(e->pgsz); -} - -#define to_iommu(dev)							\ -	(struct omap_iommu *)platform_get_drvdata(to_platform_device(dev)) - -#endif /* __PLAT_OMAP_IOMMU_H */  |