[PATCH V2 1/7] arm64/perf: Add register definitions for BRBE

Anshuman Khandual
2022-09-08T05:11:11Z

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.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
arch/arm64/include/asm/sysreg.h | 222 ++++++++++++++++++++++++++++++++
1 file changed, 222 insertions(+)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 7c71358d44c4..66b031e6f671 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -161,6 +161,224 @@
#define SYS_DBGDTRTX_EL0 sys_reg(2, 3, 0, 5, 0)
#define SYS_DBGVCR32_EL2 sys_reg(2, 4, 0, 7, 0)

+/*
+ * BRBINF<N>_EL1 Encoding: [2, 1, 8, CRm, op2]
+ *
+ * derived as <CRm> = c{N<3:0>} <op2> = (N<4>x4 + 0)
+ */
+#define __SYS_BRBINFO(n) sys_reg(2, 1, 8, ((n) & 0xf), (((n) & 0x10)) >> 2)
+
+#define SYS_BRBINF0_EL1 __SYS_BRBINFO(0)
+#define SYS_BRBINF1_EL1 __SYS_BRBINFO(1)
+#define SYS_BRBINF2_EL1 __SYS_BRBINFO(2)
+#define SYS_BRBINF3_EL1 __SYS_BRBINFO(3)
+#define SYS_BRBINF4_EL1 __SYS_BRBINFO(4)
+#define SYS_BRBINF5_EL1 __SYS_BRBINFO(5)
+#define SYS_BRBINF6_EL1 __SYS_BRBINFO(6)
+#define SYS_BRBINF7_EL1 __SYS_BRBINFO(7)
+#define SYS_BRBINF8_EL1 __SYS_BRBINFO(8)
+#define SYS_BRBINF9_EL1 __SYS_BRBINFO(9)
+#define SYS_BRBINF10_EL1 __SYS_BRBINFO(10)
+#define SYS_BRBINF11_EL1 __SYS_BRBINFO(11)
+#define SYS_BRBINF12_EL1 __SYS_BRBINFO(12)
+#define SYS_BRBINF13_EL1 __SYS_BRBINFO(13)
+#define SYS_BRBINF14_EL1 __SYS_BRBINFO(14)
+#define SYS_BRBINF15_EL1 __SYS_BRBINFO(15)
+#define SYS_BRBINF16_EL1 __SYS_BRBINFO(16)
+#define SYS_BRBINF17_EL1 __SYS_BRBINFO(17)
+#define SYS_BRBINF18_EL1 __SYS_BRBINFO(18)
+#define SYS_BRBINF19_EL1 __SYS_BRBINFO(19)
+#define SYS_BRBINF20_EL1 __SYS_BRBINFO(20)
+#define SYS_BRBINF21_EL1 __SYS_BRBINFO(21)
+#define SYS_BRBINF22_EL1 __SYS_BRBINFO(22)
+#define SYS_BRBINF23_EL1 __SYS_BRBINFO(23)
+#define SYS_BRBINF24_EL1 __SYS_BRBINFO(24)
+#define SYS_BRBINF25_EL1 __SYS_BRBINFO(25)
+#define SYS_BRBINF26_EL1 __SYS_BRBINFO(26)
+#define SYS_BRBINF27_EL1 __SYS_BRBINFO(27)
+#define SYS_BRBINF28_EL1 __SYS_BRBINFO(28)
+#define SYS_BRBINF29_EL1 __SYS_BRBINFO(29)
+#define SYS_BRBINF30_EL1 __SYS_BRBINFO(30)
+#define SYS_BRBINF31_EL1 __SYS_BRBINFO(31)
+
+/*
+ * BRBSRC<N>_EL1 Encoding: [2, 1, 8, CRm, op2]
+ *
+ * derived as <CRm> = c{N<3:0>} <op2> = (N<4>x4 + 1)
+ */
+#define __SYS_BRBSRC(n) sys_reg(2, 1, 8, ((n) & 0xf), ((((n) & 0x10)) >> 2 + 1))
+
+#define SYS_BRBSRC0_EL1 __SYS_BRBSRC(0)
+#define SYS_BRBSRC1_EL1 __SYS_BRBSRC(1)
+#define SYS_BRBSRC2_EL1 __SYS_BRBSRC(2)
+#define SYS_BRBSRC3_EL1 __SYS_BRBSRC(3)
+#define SYS_BRBSRC4_EL1 __SYS_BRBSRC(4)
+#define SYS_BRBSRC5_EL1 __SYS_BRBSRC(5)
+#define SYS_BRBSRC6_EL1 __SYS_BRBSRC(6)
+#define SYS_BRBSRC7_EL1 __SYS_BRBSRC(7)
+#define SYS_BRBSRC8_EL1 __SYS_BRBSRC(8)
+#define SYS_BRBSRC9_EL1 __SYS_BRBSRC(9)
+#define SYS_BRBSRC10_EL1 __SYS_BRBSRC(10)
+#define SYS_BRBSRC11_EL1 __SYS_BRBSRC(11)
+#define SYS_BRBSRC12_EL1 __SYS_BRBSRC(12)
+#define SYS_BRBSRC13_EL1 __SYS_BRBSRC(13)
+#define SYS_BRBSRC14_EL1 __SYS_BRBSRC(14)
+#define SYS_BRBSRC15_EL1 __SYS_BRBSRC(15)
+#define SYS_BRBSRC16_EL1 __SYS_BRBSRC(16)
+#define SYS_BRBSRC17_EL1 __SYS_BRBSRC(17)
+#define SYS_BRBSRC18_EL1 __SYS_BRBSRC(18)
+#define SYS_BRBSRC19_EL1 __SYS_BRBSRC(19)
+#define SYS_BRBSRC20_EL1 __SYS_BRBSRC(20)
+#define SYS_BRBSRC21_EL1 __SYS_BRBSRC(21)
+#define SYS_BRBSRC22_EL1 __SYS_BRBSRC(22)
+#define SYS_BRBSRC23_EL1 __SYS_BRBSRC(23)
+#define SYS_BRBSRC24_EL1 __SYS_BRBSRC(24)
+#define SYS_BRBSRC25_EL1 __SYS_BRBSRC(25)
+#define SYS_BRBSRC26_EL1 __SYS_BRBSRC(26)
+#define SYS_BRBSRC27_EL1 __SYS_BRBSRC(27)
+#define SYS_BRBSRC28_EL1 __SYS_BRBSRC(28)
+#define SYS_BRBSRC29_EL1 __SYS_BRBSRC(29)
+#define SYS_BRBSRC30_EL1 __SYS_BRBSRC(30)
+#define SYS_BRBSRC31_EL1 __SYS_BRBSRC(31)
+
+/*
+ * BRBTGT<N>_EL1 Encoding: [2, 1, 8, CRm, op2]
+ *
+ * derived as <CRm> = c{N<3:0>} <op2> = (N<4>x4 + 2)
+ */
+#define __SYS_BRBTGT(n) sys_reg(2, 1, 8, ((n) & 0xf), ((((n) & 0x10)) >> 2 + 2))
+
+#define SYS_BRBTGT0_EL1 __SYS_BRBTGT(0)
+#define SYS_BRBTGT1_EL1 __SYS_BRBTGT(1)
+#define SYS_BRBTGT2_EL1 __SYS_BRBTGT(2)
+#define SYS_BRBTGT3_EL1 __SYS_BRBTGT(3)
+#define SYS_BRBTGT4_EL1 __SYS_BRBTGT(4)
+#define SYS_BRBTGT5_EL1 __SYS_BRBTGT(5)
+#define SYS_BRBTGT6_EL1 __SYS_BRBTGT(6)
+#define SYS_BRBTGT7_EL1 __SYS_BRBTGT(7)
+#define SYS_BRBTGT8_EL1 __SYS_BRBTGT(8)
+#define SYS_BRBTGT9_EL1 __SYS_BRBTGT(9)
+#define SYS_BRBTGT10_EL1 __SYS_BRBTGT(10)
+#define SYS_BRBTGT11_EL1 __SYS_BRBTGT(11)
+#define SYS_BRBTGT12_EL1 __SYS_BRBTGT(12)
+#define SYS_BRBTGT13_EL1 __SYS_BRBTGT(13)
+#define SYS_BRBTGT14_EL1 __SYS_BRBTGT(14)
+#define SYS_BRBTGT15_EL1 __SYS_BRBTGT(15)
+#define SYS_BRBTGT16_EL1 __SYS_BRBTGT(16)
+#define SYS_BRBTGT17_EL1 __SYS_BRBTGT(17)
+#define SYS_BRBTGT18_EL1 __SYS_BRBTGT(18)
+#define SYS_BRBTGT19_EL1 __SYS_BRBTGT(19)
+#define SYS_BRBTGT20_EL1 __SYS_BRBTGT(20)
+#define SYS_BRBTGT21_EL1 __SYS_BRBTGT(21)
+#define SYS_BRBTGT22_EL1 __SYS_BRBTGT(22)
+#define SYS_BRBTGT23_EL1 __SYS_BRBTGT(23)
+#define SYS_BRBTGT24_EL1 __SYS_BRBTGT(24)
+#define SYS_BRBTGT25_EL1 __SYS_BRBTGT(25)
+#define SYS_BRBTGT26_EL1 __SYS_BRBTGT(26)
+#define SYS_BRBTGT27_EL1 __SYS_BRBTGT(27)
+#define SYS_BRBTGT28_EL1 __SYS_BRBTGT(28)
+#define SYS_BRBTGT29_EL1 __SYS_BRBTGT(29)
+#define SYS_BRBTGT30_EL1 __SYS_BRBTGT(30)
+#define SYS_BRBTGT31_EL1 __SYS_BRBTGT(31)
+
+#define SYS_BRBIDR0_EL1 sys_reg(2, 1, 9, 2, 0)
+#define SYS_BRBCR_EL1 sys_reg(2, 1, 9, 0, 0)
+#define SYS_BRBFCR_EL1 sys_reg(2, 1, 9, 0, 1)
+#define SYS_BRBTS_EL1 sys_reg(2, 1, 9, 0, 2)
+#define SYS_BRBINFINJ_EL1 sys_reg(2, 1, 9, 1, 0)
+#define SYS_BRBSRCINJ_EL1 sys_reg(2, 1, 9, 1, 1)
+#define SYS_BRBTGTINJ_EL1 sys_reg(2, 1, 9, 1, 2)
+
+#define BRBIDR0_CC_SHIFT 12
+#define BRBIDR0_CC_MASK GENMASK(3, 0)
+#define BRBIDR0_FORMAT_SHIFT 8
+#define BRBIDR0_FORMAT_MASK GENMASK(3, 0)
+#define BRBIDR0_NUMREC_SHIFT 0
+#define BRBIDR0_NUMREC_MASK GENMASK(7, 0)
+
+#define BRBIDR0_CC_20_BIT 0x5
+#define BRBIDR0_FORMAT_0 0x0
+
+#define BRBIDR0_NUMREC_8 0x08
+#define BRBIDR0_NUMREC_16 0x10
+#define BRBIDR0_NUMREC_32 0x20
+#define BRBIDR0_NUMREC_64 0x40
+
+#define BRBINF_VALID_SHIFT 0
+#define BRBINF_VALID_MASK GENMASK(1, 0)
+#define BRBINF_MPRED (1UL << 5)
+#define BRBINF_EL_SHIFT 6
+#define BRBINF_EL_MASK GENMASK(1, 0)
+#define BRBINF_TYPE_SHIFT 8
+#define BRBINF_TYPE_MASK GENMASK(5, 0)
+#define BRBINF_TX (1UL << 16)
+#define BRBINF_LASTFAILED (1UL << 17)
+#define BRBINF_CC_SHIFT 32
+#define BRBINF_CC_MASK GENMASK(13, 0)
+#define BRBINF_CCU (1UL << 46)
+
+#define BRBINF_EL_EL0 0x0
+#define BRBINF_EL_EL1 0x1
+#define BRBINF_EL_EL2 0x2
+
+#define BRBINF_VALID_INVALID 0x0
+#define BRBINF_VALID_TARGET 0x1
+#define BRBINF_VALID_SOURCE 0x2
+#define BRBINF_VALID_ALL 0x3
+
+#define BRBINF_TYPE_UNCOND_DIR 0x0
+#define BRBINF_TYPE_INDIR 0x1
+#define BRBINF_TYPE_DIR_LINK 0x2
+#define BRBINF_TYPE_INDIR_LINK 0x3
+#define BRBINF_TYPE_RET_SUB 0x5
+#define BRBINF_TYPE_RET_EXCPT 0x7
+#define BRBINF_TYPE_COND_DIR 0x8
+#define BRBINF_TYPE_DEBUG_HALT 0x21
+#define BRBINF_TYPE_CALL 0x22
+#define BRBINF_TYPE_TRAP 0x23
+#define BRBINF_TYPE_SERROR 0x24
+#define BRBINF_TYPE_INST_DEBUG 0x26
+#define BRBINF_TYPE_DATA_DEBUG 0x27
+#define BRBINF_TYPE_ALGN_FAULT 0x2A
+#define BRBINF_TYPE_INST_FAULT 0x2B
+#define BRBINF_TYPE_DATA_FAULT 0x2C
+#define BRBINF_TYPE_IRQ 0x2E
+#define BRBINF_TYPE_FIQ 0x2F
+#define BRBINF_TYPE_DEBUG_EXIT 0x39
+
+#define BRBCR_E0BRE (1UL << 0)
+#define BRBCR_E1BRE (1UL << 1)
+#define BRBCR_CC (1UL << 3)
+#define BRBCR_MPRED (1UL << 4)
+#define BRBCR_FZP (1UL << 8)
+#define BRBCR_ERTN (1UL << 22)
+#define BRBCR_EXCEPTION (1UL << 23)
+#define BRBCR_TS_MASK GENMASK(1, 0)
+#define BRBCR_TS_SHIFT 5
+
+#define BRBCR_TS_VIRTUAL 0x1
+#define BRBCR_TS_GST_PHYSICAL 0x2
+#define BRBCR_TS_PHYSICAL 0x3
+
+#define BRBFCR_LASTFAILED (1UL << 6)
+#define BRBFCR_PAUSED (1UL << 7)
+#define BRBFCR_ENL (1UL << 16)
+#define BRBFCR_DIRECT (1UL << 17)
+#define BRBFCR_INDIRECT (1UL << 18)
+#define BRBFCR_RTN (1UL << 19)
+#define BRBFCR_INDCALL (1UL << 20)
+#define BRBFCR_DIRCALL (1UL << 21)
+#define BRBFCR_CONDDIR (1UL << 22)
+#define BRBFCR_BANK_MASK GENMASK(1, 0)
+#define BRBFCR_BANK_SHIFT 28
+
+#define BRBFCR_BANK_FIRST 0x0
+#define BRBFCR_BANK_SECOND 0x1
+
+#define BRBFCR_BRANCH_ALL (BRBFCR_DIRECT | BRBFCR_INDIRECT | \
+ BRBFCR_RTN | BRBFCR_INDCALL | \
+ BRBFCR_DIRCALL | BRBFCR_CONDDIR)
+
#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)
@@ -826,6 +1044,7 @@
#define ID_AA64MMFR2_CNP_SHIFT 0

/* id_aa64dfr0 */
+#define ID_AA64DFR0_BRBE_SHIFT 52
#define ID_AA64DFR0_MTPMU_SHIFT 48
#define ID_AA64DFR0_TRBE_SHIFT 44
#define ID_AA64DFR0_TRACE_FILT_SHIFT 40
@@ -848,6 +1067,9 @@
#define ID_AA64DFR0_PMSVER_8_2 0x1
#define ID_AA64DFR0_PMSVER_8_3 0x2

+#define ID_AA64DFR0_BRBE 0x1
+#define ID_AA64DFR0_BRBE_V1P1 0x2
+
#define ID_DFR0_PERFMON_SHIFT 24

#define ID_DFR0_PERFMON_8_0 0x3
--
2.25.1