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d232643ed8
Change-Id: I08df563ef6967f5f9734bbe11ac643c3b68f504f Reviewed-on: https://review.haiku-os.org/c/haiku/+/5151 Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org> Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
84 lines
1.2 KiB
C
84 lines
1.2 KiB
C
/*
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* Copyright 2013-2022 Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef BOOT_ARCH_CPU_H
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#define BOOT_ARCH_CPU_H
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#include <SupportDefs.h>
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#include <boot/vfs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t boot_arch_cpu_init(void);
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void arch_ucode_load(BootVolume& volume);
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bigtime_t system_time();
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void spin(bigtime_t microseconds);
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static inline uint32
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cpu_read_CPSR(void)
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{
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uint32 res;
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asm volatile("MRS %0, CPSR": "=r" (res));
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return res;
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}
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static inline uint32
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mmu_read_SCTLR(void)
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{
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uint32 res;
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asm volatile("MRC p15, 0, %0, c1, c0, 0": "=r" (res));
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return res;
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}
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static inline uint32
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mmu_read_TTBR0(void)
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{
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uint32 res;
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asm volatile("MRC p15, 0, %0, c2, c0, 0": "=r" (res));
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return res;
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}
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static inline uint32
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mmu_read_TTBR1(void)
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{
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uint32 res;
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asm volatile("MRC p15, 0, %0, c2, c0, 1": "=r" (res));
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return res;
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}
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static inline uint32
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mmu_read_TTBCR(void)
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{
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uint32 res;
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asm volatile("MRC p15, 0, %0, c2, c0, 2": "=r" (res));
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return res;
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}
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static inline uint32
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mmu_read_DACR(void)
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{
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uint32 res;
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asm volatile("MRC p15, 0, %0, c3, c0, 0": "=r" (res));
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return res;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* BOOT_ARCH_CPU_H */
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