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Date: Fri, 5 Apr 2024 08:16:31 +0530 From: Anshuman Khandual <anshuman.khandual@....com> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, will@...nel.org, catalin.marinas@....com, mark.rutland@....com Cc: Anshuman Khandual <anshuman.khandual@....com>, Mark Brown <broonie@...nel.org>, James Clark <james.clark@....com>, Rob Herring <robh@...nel.org>, Marc Zyngier <maz@...nel.org>, Suzuki Poulose <suzuki.poulose@....com>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, linux-perf-users@...r.kernel.org Subject: [PATCH V17 1/9] arm64/sysreg: Add BRBE registers and fields This adds BRBE related register definitions and various other related field macros there in. These will be used subsequently in a BRBE driver, which is being added later on. While here, this drops redundant register definitions from the header i.e (arch/arm64/include/asm/sysreg.h). BRBINFx_EL1_TYPE_IMPDEF_TRAP_EL3 register field value has been derived from latest ARM DDI 0601 ID121123, AKA 2023-12 instead of latest ARM ARM i.e ARM DDI 0487J.a. Please find the definition here. https://developer.arm.com/documentation/ddi0601/2023-12/ Cc: Catalin Marinas <catalin.marinas@....com> Cc: Will Deacon <will@...nel.org> Cc: Marc Zyngier <maz@...nel.org> Cc: Mark Rutland <mark.rutland@....com> Cc: linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.kernel.org Reviewed-by: Mark Brown <broonie@...nel.org> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com> ---- Changes in V17: - Added back Reviewed-by tags from Mark Brown - Updated the commit message regarding the field BRBINFx_EL1_TYPE_IMPDEF_TRAP_EL3 - Added leading 0s for all values as BRBIDR0_EL1.NUMREC is a 8 bit field - Added leading 0s for all values as BRBFCR_EL1.BANK is a 2 bit field - Reordered BRBCR_EL1/BRBCR_EL12/BRBCR_EL2 registers as per sysreg encodings - Renamed s/FIRST/BANK_0 and s/SECOND/BANK_1 in BRBFCR_EL1.BANK - Renamed s/UNCOND_DIRECT/DIRECT_UNCOND in BRBINFx_EL1.TYPE - Renamed s/COND_DIRECT/DIRECT_COND in BRBINFx_EL1.TYPE - Dropped __SYS_BRBINF/__SYS_BRBSRC/__SYS_BRBTGT and their expansions - Moved all existing BRBE registers from sysreg.h header to tools/sysreg format arch/arm64/include/asm/sysreg.h | 17 ++--- arch/arm64/tools/sysreg | 131 ++++++++++++++++++++++++++++++++ 2 files changed, 137 insertions(+), 11 deletions(-) diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 9e8999592f3a..6db64ce5b12b 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -195,16 +195,8 @@ #define SYS_DBGVCR32_EL2 sys_reg(2, 4, 0, 7, 0) #define SYS_BRBINF_EL1(n) sys_reg(2, 1, 8, (n & 15), (((n & 16) >> 2) | 0)) -#define SYS_BRBINFINJ_EL1 sys_reg(2, 1, 9, 1, 0) #define SYS_BRBSRC_EL1(n) sys_reg(2, 1, 8, (n & 15), (((n & 16) >> 2) | 1)) -#define SYS_BRBSRCINJ_EL1 sys_reg(2, 1, 9, 1, 1) #define SYS_BRBTGT_EL1(n) sys_reg(2, 1, 8, (n & 15), (((n & 16) >> 2) | 2)) -#define SYS_BRBTGTINJ_EL1 sys_reg(2, 1, 9, 1, 2) -#define SYS_BRBTS_EL1 sys_reg(2, 1, 9, 0, 2) - -#define SYS_BRBCR_EL1 sys_reg(2, 1, 9, 0, 0) -#define SYS_BRBFCR_EL1 sys_reg(2, 1, 9, 0, 1) -#define SYS_BRBIDR0_EL1 sys_reg(2, 1, 9, 2, 0) #define SYS_TRCITECR_EL1 sys_reg(3, 0, 1, 2, 3) #define SYS_TRCACATR(m) sys_reg(2, 1, 2, ((m & 7) << 1), (2 | (m >> 3))) @@ -270,8 +262,6 @@ /* ETM */ #define SYS_TRCOSLAR sys_reg(2, 1, 1, 0, 4) -#define SYS_BRBCR_EL2 sys_reg(2, 4, 9, 0, 0) - #define SYS_MIDR_EL1 sys_reg(3, 0, 0, 0, 0) #define SYS_MPIDR_EL1 sys_reg(3, 0, 0, 0, 5) #define SYS_REVIDR_EL1 sys_reg(3, 0, 0, 0, 6) @@ -601,7 +591,6 @@ #define SYS_CNTHV_CVAL_EL2 sys_reg(3, 4, 14, 3, 2) /* VHE encodings for architectural EL0/1 system registers */ -#define SYS_BRBCR_EL12 sys_reg(2, 5, 9, 0, 0) #define SYS_SCTLR_EL12 sys_reg(3, 5, 1, 0, 0) #define SYS_CPACR_EL12 sys_reg(3, 5, 1, 0, 2) #define SYS_SCTLR2_EL12 sys_reg(3, 5, 1, 0, 3) @@ -794,6 +783,12 @@ #define OP_COSP_RCTX sys_insn(1, 3, 7, 3, 6) #define OP_CPP_RCTX sys_insn(1, 3, 7, 3, 7) +/* + * BRBE Instructions + */ +#define BRB_IALL_INSN __emit_inst(0xd5000000 | OP_BRB_IALL | (0x1f)) +#define BRB_INJ_INSN __emit_inst(0xd5000000 | OP_BRB_INJ | (0x1f)) + /* Common SCTLR_ELx flags. */ #define SCTLR_ELx_ENTP2 (BIT(60)) #define SCTLR_ELx_DSSBS (BIT(44)) diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg index a4c1dd4741a4..e5bf99234c74 100644 --- a/arch/arm64/tools/sysreg +++ b/arch/arm64/tools/sysreg @@ -1025,6 +1025,137 @@ UnsignedEnum 3:0 MTEPERM EndEnum EndSysreg + +SysregFields BRBINFx_EL1 +Res0 63:47 +Field 46 CCU +Field 45:32 CC +Res0 31:18 +Field 17 LASTFAILED +Field 16 T +Res0 15:14 +Enum 13:8 TYPE + 0b000000 DIRECT_UNCOND + 0b000001 INDIRECT + 0b000010 DIRECT_LINK + 0b000011 INDIRECT_LINK + 0b000101 RET + 0b000111 ERET + 0b001000 DIRECT_COND + 0b100001 DEBUG_HALT + 0b100010 CALL + 0b100011 TRAP + 0b100100 SERROR + 0b100110 INSN_DEBUG + 0b100111 DATA_DEBUG + 0b101010 ALIGN_FAULT + 0b101011 INSN_FAULT + 0b101100 DATA_FAULT + 0b101110 IRQ + 0b101111 FIQ + 0b110000 IMPDEF_TRAP_EL3 + 0b111001 DEBUG_EXIT +EndEnum +Enum 7:6 EL + 0b00 EL0 + 0b01 EL1 + 0b10 EL2 + 0b11 EL3 +EndEnum +Field 5 MPRED +Res0 4:2 +Enum 1:0 VALID + 0b00 NONE + 0b01 TARGET + 0b10 SOURCE + 0b11 FULL +EndEnum +EndSysregFields + +SysregFields BRBCR_ELx +Res0 63:24 +Field 23 EXCEPTION +Field 22 ERTN +Res0 21:10 +Field 9 FZPSS +Field 8 FZP +Res0 7 +Enum 6:5 TS + 0b01 VIRTUAL + 0b10 GUEST_PHYSICAL + 0b11 PHYSICAL +EndEnum +Field 4 MPRED +Field 3 CC +Res0 2 +Field 1 ExBRE +Field 0 E0BRE +EndSysregFields + +Sysreg BRBCR_EL1 2 1 9 0 0 +Fields BRBCR_ELx +EndSysreg + +Sysreg BRBFCR_EL1 2 1 9 0 1 +Res0 63:30 +Enum 29:28 BANK + 0b00 BANK_0 + 0b01 BANK_1 +EndEnum +Res0 27:23 +Field 22 CONDDIR +Field 21 DIRCALL +Field 20 INDCALL +Field 19 RTN +Field 18 INDIRECT +Field 17 DIRECT +Field 16 EnI +Res0 15:8 +Field 7 PAUSED +Field 6 LASTFAILED +Res0 5:0 +EndSysreg + +Sysreg BRBTS_EL1 2 1 9 0 2 +Field 63:0 TS +EndSysreg + +Sysreg BRBINFINJ_EL1 2 1 9 1 0 +Fields BRBINFx_EL1 +EndSysreg + +Sysreg BRBSRCINJ_EL1 2 1 9 1 1 +Field 63:0 ADDRESS +EndSysreg + +Sysreg BRBTGTINJ_EL1 2 1 9 1 2 +Field 63:0 ADDRESS +EndSysreg + +Sysreg BRBIDR0_EL1 2 1 9 2 0 +Res0 63:16 +Enum 15:12 CC + 0b101 20_BIT +EndEnum +Enum 11:8 FORMAT + 0b0 0 +EndEnum +Enum 7:0 NUMREC + 0b00001000 8 + 0b00010000 16 + 0b00100000 32 + 0b01000000 64 +EndEnum +EndSysreg + +Sysreg BRBCR_EL2 2 4 9 0 0 +Fields BRBCR_ELx +EndSysreg + +Sysreg BRBCR_EL12 2 5 9 0 0 +Fields BRBCR_ELx +EndSysreg + Sysreg ID_AA64ZFR0_EL1 3 0 0 4 4 Res0 63:60 UnsignedEnum 59:56 F64MM -- 2.25.1
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