1 /* SPDX-License-Identifier: GPL-2.0-only */
5  * Copyright (C) 2008-2010 Nokia Corporation
16  * "L2 table" address mask and size definitions.
20 #define IOPGD_MASK		(~(IOPGD_SIZE - 1))
23  * "section" address mask and size definitions.
27 #define IOSECTION_MASK		(~(IOSECTION_SIZE - 1))
30  * "supersection" address mask and size definitions.
34 #define IOSUPER_MASK		(~(IOSUPER_SIZE - 1))
36 #define PTRS_PER_IOPGD		(1UL << (32 - IOPGD_SHIFT))
40  * "small page" address mask and size definitions.
44 #define IOPTE_MASK		(~(IOPTE_SIZE - 1))
47  * "large page" address mask and size definitions.
51 #define IOLARGE_MASK		(~(IOLARGE_SIZE - 1))
53 #define PTRS_PER_IOPTE		(1UL << (IOPGD_SHIFT - IOPTE_SHIFT))
59  * omap_iommu_translate() - va to pa translation
62  * @mask:	omap iommu descriptor mask
67 					       dma_addr_t mask)  in omap_iommu_translate()  argument
69 	return (d & mask) | (va & (~mask));  in omap_iommu_translate()
79 #define iopgd_is_table(x)	(((x) & 3) == IOPGD_TABLE)  argument
80 #define iopgd_is_section(x)	(((x) & (1 << 18 | 3)) == IOPGD_SECTION)  argument
81 #define iopgd_is_super(x)	(((x) & (1 << 18 | 3)) == IOPGD_SUPER)  argument
86 #define iopte_is_small(x)	(((x) & 2) == IOPTE_SMALL)  argument
87 #define iopte_is_large(x)	(((x) & 3) == IOPTE_LARGE)  argument
89 /* to find an entry in a page-table-directory */
90 #define iopgd_index(da)		(((da) >> IOPGD_SHIFT) & (PTRS_PER_IOPGD - 1))
91 #define iopgd_offset(obj, da)	((obj)->iopgd + iopgd_index(da))
93 #define iopgd_page_paddr(iopgd)	(*iopgd & ~((1 << 10) - 1))
96 /* to find an entry in the second-level page table. */
97 #define iopte_index(da)		(((da) >> IOPTE_SHIFT) & (PTRS_PER_IOPTE - 1))