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18 lines
463 B
18 lines
463 B
3 years ago
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_CSKY_SEGMENT_H
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#define __ASM_CSKY_SEGMENT_H
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typedef struct {
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unsigned long seg;
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} mm_segment_t;
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#define KERNEL_DS ((mm_segment_t) { 0xFFFFFFFF })
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#define USER_DS ((mm_segment_t) { PAGE_OFFSET })
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#define get_fs() (current_thread_info()->addr_limit)
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#define set_fs(x) (current_thread_info()->addr_limit = (x))
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#define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg)
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#endif /* __ASM_CSKY_SEGMENT_H */
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