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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* POWER Dynamic Execution Control Facility (DEXCR)
*
* This header file contains helper functions and macros
* required for all the DEXCR related test cases.
*/
#ifndef _SELFTESTS_POWERPC_DEXCR_DEXCR_H
#define _SELFTESTS_POWERPC_DEXCR_DEXCR_H
#include <stdbool.h>
#include <sys/types.h>
#include "reg.h"
#define DEXCR_PR_BIT(aspect) __MASK(63 - (32 + (aspect)))
#define DEXCR_PR_SBHE DEXCR_PR_BIT(0)
#define DEXCR_PR_IBRTPD DEXCR_PR_BIT(3)
#define DEXCR_PR_SRAPD DEXCR_PR_BIT(4)
#define DEXCR_PR_NPHIE DEXCR_PR_BIT(5)
#define PPC_RAW_HASH_ARGS(b, i, a) \
((((i) >> 3) & 0x1F) << 21 | (a) << 16 | (b) << 11 | (((i) >> 8) & 0x1))
#define PPC_RAW_HASHST(b, i, a) \
str(.long (0x7C0005A4 | PPC_RAW_HASH_ARGS(b, i, a));)
#define PPC_RAW_HASHCHK(b, i, a) \
str(.long (0x7C0005E4 | PPC_RAW_HASH_ARGS(b, i, a));)
bool dexcr_exists(void);
bool hashchk_triggers(void);
enum dexcr_source {
DEXCR, /* Userspace DEXCR value */
HDEXCR, /* Hypervisor enforced DEXCR value */
EFFECTIVE, /* Bitwise OR of UDEXCR and ENFORCED DEXCR bits */
};
unsigned int get_dexcr(enum dexcr_source source);
void await_child_success(pid_t pid);
void hashst(unsigned long lr, void *sp);
void hashchk(unsigned long lr, void *sp);
void do_bad_hashchk(void);
#endif /* _SELFTESTS_POWERPC_DEXCR_DEXCR_H */
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