linux_dsm_epyc7002/arch/sparc/include/asm/scratchpad.h

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#ifndef _SPARC64_SCRATCHPAD_H
#define _SPARC64_SCRATCHPAD_H
/* Sun4v scratchpad registers, accessed via ASI_SCRATCHPAD. */
#define SCRATCHPAD_MMU_MISS 0x00 /* Shared with OBP - set by OBP */
#define SCRATCHPAD_CPUID 0x08 /* Shared with OBP - set by hypervisor */
#define SCRATCHPAD_UTSBREG1 0x10
#define SCRATCHPAD_UTSBREG2 0x18
/* 0x20 and 0x28, hypervisor only... */
#define SCRATCHPAD_UNUSED1 0x30
#define SCRATCHPAD_UNUSED2 0x38 /* Reserved for OBP */
#endif /* !(_SPARC64_SCRATCHPAD_H) */