ff4a549a34
Add Linux compatibility header stubs needed to compile extents_status.c: - backing-dev.h: Backing device info stub - dax.h: Direct Access (DAX) stubs - iomap.h: I/O mapping operations and structures - mman.h: Memory mapping flags - mount.h: VFS mount structures - pagevec.h: Page vector batching - pfn_t.h: Page frame number type - posix_acl_xattr.h: POSIX ACL xattr definitions - proc_fs.h: Proc filesystem stub - uio.h: User I/O vector definitions - xattr.h: Extended attributes - trace/events/ext4.h: Trace event stubs Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>
32 lines
602 B
C
32 lines
602 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_PFN_T_H
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#define _LINUX_PFN_T_H
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#include <linux/types.h>
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/*
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* pfn_t is a type that encapsulates a page frame number along with
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* flags about how it should be used. For U-Boot, we just need a
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* minimal definition.
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*/
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typedef struct {
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u64 val;
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} pfn_t;
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#define PFN_DEV (1ULL << 56)
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#define PFN_MAP (1ULL << 57)
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static inline pfn_t pfn_to_pfn_t(unsigned long pfn)
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{
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pfn_t pfn_t = { .val = pfn };
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return pfn_t;
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}
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static inline unsigned long pfn_t_to_pfn(pfn_t pfn)
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{
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return pfn.val & ~(PFN_DEV | PFN_MAP);
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}
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#endif /* _LINUX_PFN_T_H */
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