34 lines
653 B
C
34 lines
653 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_BOOK3S_64_KEXEC_H_
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#define _ASM_POWERPC_BOOK3S_64_KEXEC_H_
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#include <asm/plpar_wrappers.h>
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#define reset_sprs reset_sprs
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static inline void reset_sprs(void)
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{
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if (cpu_has_feature(CPU_FTR_ARCH_206)) {
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mtspr(SPRN_AMR, 0);
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mtspr(SPRN_UAMOR, 0);
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}
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if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
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mtspr(SPRN_IAMR, 0);
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if (cpu_has_feature(CPU_FTR_HVMODE))
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mtspr(SPRN_CIABR, 0);
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else
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plpar_set_ciabr(0);
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}
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if (cpu_has_feature(CPU_FTR_ARCH_31)) {
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mtspr(SPRN_DEXCR, 0);
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mtspr(SPRN_HASHKEYR, 0);
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}
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/* Do we need isync()? We are going via a kexec reset */
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isync();
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}
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#endif
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