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The Power ISA mandates that all writes to the Authority Mask Register (AMR) must always be preceded as well as succeeded by a context synchronizing instruction. This makes sure that the tests follow this requirement when attempting to update a pkey's access rights. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200604125610.649668-2-sandipan@linux.ibm.com
164 lines
6.3 KiB
C
164 lines
6.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2014, Michael Ellerman, IBM Corp.
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*/
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#ifndef _SELFTESTS_POWERPC_REG_H
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#define _SELFTESTS_POWERPC_REG_H
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#define __stringify_1(x) #x
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#define __stringify(x) __stringify_1(x)
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#define mfspr(rn) ({unsigned long rval; \
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asm volatile("mfspr %0," _str(rn) \
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: "=r" (rval)); rval; })
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#define mtspr(rn, v) asm volatile("mtspr " _str(rn) ",%0" : \
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: "r" ((unsigned long)(v)) \
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: "memory")
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#define mb() asm volatile("sync" : : : "memory");
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#define barrier() asm volatile("" : : : "memory");
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#define SPRN_MMCR2 769
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#define SPRN_MMCRA 770
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#define SPRN_MMCR0 779
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#define MMCR0_PMAO 0x00000080
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#define MMCR0_PMAE 0x04000000
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#define MMCR0_FC 0x80000000
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#define SPRN_EBBHR 804
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#define SPRN_EBBRR 805
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#define SPRN_BESCR 806 /* Branch event status & control register */
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#define SPRN_BESCRS 800 /* Branch event status & control set (1 bits set to 1) */
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#define SPRN_BESCRSU 801 /* Branch event status & control set upper */
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#define SPRN_BESCRR 802 /* Branch event status & control REset (1 bits set to 0) */
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#define SPRN_BESCRRU 803 /* Branch event status & control REset upper */
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#define BESCR_PMEO 0x1 /* PMU Event-based exception Occurred */
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#define BESCR_PME (0x1ul << 32) /* PMU Event-based exception Enable */
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#define SPRN_PMC1 771
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#define SPRN_PMC2 772
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#define SPRN_PMC3 773
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#define SPRN_PMC4 774
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#define SPRN_PMC5 775
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#define SPRN_PMC6 776
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#define SPRN_SIAR 780
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#define SPRN_SDAR 781
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#define SPRN_SIER 768
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#define SPRN_TEXASR 0x82 /* Transaction Exception and Status Register */
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#define SPRN_TFIAR 0x81 /* Transaction Failure Inst Addr */
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#define SPRN_TFHAR 0x80 /* Transaction Failure Handler Addr */
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#define SPRN_TAR 0x32f /* Target Address Register */
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#define SPRN_DSCR_PRIV 0x11 /* Privilege State DSCR */
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#define SPRN_DSCR 0x03 /* Data Stream Control Register */
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#define SPRN_PPR 896 /* Program Priority Register */
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#define SPRN_AMR 13 /* Authority Mask Register - problem state */
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#define set_amr(v) asm volatile("isync;" \
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"mtspr " __stringify(SPRN_AMR) ",%0;" \
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"isync" : \
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: "r" ((unsigned long)(v)) \
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: "memory")
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/* TEXASR register bits */
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#define TEXASR_FC 0xFE00000000000000
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#define TEXASR_FP 0x0100000000000000
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#define TEXASR_DA 0x0080000000000000
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#define TEXASR_NO 0x0040000000000000
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#define TEXASR_FO 0x0020000000000000
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#define TEXASR_SIC 0x0010000000000000
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#define TEXASR_NTC 0x0008000000000000
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#define TEXASR_TC 0x0004000000000000
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#define TEXASR_TIC 0x0002000000000000
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#define TEXASR_IC 0x0001000000000000
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#define TEXASR_IFC 0x0000800000000000
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#define TEXASR_ABT 0x0000000100000000
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#define TEXASR_SPD 0x0000000080000000
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#define TEXASR_HV 0x0000000020000000
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#define TEXASR_PR 0x0000000010000000
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#define TEXASR_FS 0x0000000008000000
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#define TEXASR_TE 0x0000000004000000
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#define TEXASR_ROT 0x0000000002000000
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/* MSR register bits */
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#define MSR_TS_S_LG 33 /* Trans Mem state: Suspended */
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#define MSR_TS_T_LG 34 /* Trans Mem state: Active */
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#define __MASK(X) (1UL<<(X))
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/* macro to check TM MSR bits */
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#define MSR_TS_S __MASK(MSR_TS_S_LG) /* Transaction Suspended */
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#define MSR_TS_T __MASK(MSR_TS_T_LG) /* Transaction Transactional */
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/* Vector Instructions */
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#define VSX_XX1(xs, ra, rb) (((xs) & 0x1f) << 21 | ((ra) << 16) | \
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((rb) << 11) | (((xs) >> 5)))
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#define STXVD2X(xs, ra, rb) .long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
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#define LXVD2X(xs, ra, rb) .long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
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#define ASM_LOAD_GPR_IMMED(_asm_symbol_name_immed) \
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"li 14, %[" #_asm_symbol_name_immed "];" \
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"li 15, %[" #_asm_symbol_name_immed "];" \
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"li 16, %[" #_asm_symbol_name_immed "];" \
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"li 17, %[" #_asm_symbol_name_immed "];" \
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"li 18, %[" #_asm_symbol_name_immed "];" \
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"li 19, %[" #_asm_symbol_name_immed "];" \
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"li 20, %[" #_asm_symbol_name_immed "];" \
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"li 21, %[" #_asm_symbol_name_immed "];" \
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"li 22, %[" #_asm_symbol_name_immed "];" \
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"li 23, %[" #_asm_symbol_name_immed "];" \
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"li 24, %[" #_asm_symbol_name_immed "];" \
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"li 25, %[" #_asm_symbol_name_immed "];" \
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"li 26, %[" #_asm_symbol_name_immed "];" \
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"li 27, %[" #_asm_symbol_name_immed "];" \
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"li 28, %[" #_asm_symbol_name_immed "];" \
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"li 29, %[" #_asm_symbol_name_immed "];" \
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"li 30, %[" #_asm_symbol_name_immed "];" \
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"li 31, %[" #_asm_symbol_name_immed "];"
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#define ASM_LOAD_FPR_SINGLE_PRECISION(_asm_symbol_name_addr) \
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"lfs 0, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 1, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 2, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 3, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 4, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 5, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 6, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 7, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 8, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 9, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 10, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 11, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 12, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 13, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 14, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 15, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 16, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 17, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 18, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 19, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 20, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 21, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 22, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 23, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 24, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 25, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 26, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 27, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 28, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 29, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 30, 0(%[" #_asm_symbol_name_addr "]);" \
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"lfs 31, 0(%[" #_asm_symbol_name_addr "]);"
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#ifndef __ASSEMBLER__
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void store_gpr(unsigned long *addr);
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void load_gpr(unsigned long *addr);
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void load_fpr_single_precision(float *addr);
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void store_fpr_single_precision(float *addr);
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#endif /* end of __ASSEMBLER__ */
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#endif /* _SELFTESTS_POWERPC_REG_H */
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