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37 lines
935 B
37 lines
935 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_VDSO_VSYSCALL_H |
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#define __ASM_VDSO_VSYSCALL_H |
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#ifndef __ASSEMBLY__ |
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#include <linux/timekeeper_internal.h> |
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#include <vdso/datapage.h> |
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#define VDSO_PRECISION_MASK ~(0xFF00ULL<<48) |
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extern struct vdso_data *vdso_data; |
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/* |
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* Update the vDSO data page to keep in sync with kernel timekeeping. |
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*/ |
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static __always_inline |
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struct vdso_data *__arm64_get_k_vdso_data(void) |
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{ |
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return vdso_data; |
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} |
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#define __arch_get_k_vdso_data __arm64_get_k_vdso_data |
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static __always_inline |
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void __arm64_update_vsyscall(struct vdso_data *vdata, struct timekeeper *tk) |
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{ |
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vdata[CS_HRES_COARSE].mask = VDSO_PRECISION_MASK; |
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vdata[CS_RAW].mask = VDSO_PRECISION_MASK; |
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} |
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#define __arch_update_vsyscall __arm64_update_vsyscall |
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/* The asm-generic header needs to be included after the definitions above */ |
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#include <asm-generic/vdso/vsyscall.h> |
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#endif /* !__ASSEMBLY__ */ |
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#endif /* __ASM_VDSO_VSYSCALL_H */
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