| /* 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 */ |