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| author | Victor Do Nascimento <victor.donascimento@arm.com> | 2023-11-01 13:18:08 +0000 |
|---|---|---|
| committer | Victor Do Nascimento <victor.donascimento@arm.com> | 2023-11-07 20:38:11 +0000 |
| commit | ecd4c78dddefe41d9fc7b947fdf4e76b743b2b02 (patch) | |
| tree | 5e4c08bf84ce7a324d269839384a0414bf13c846 | |
| parent | 9203a155ee9722be40d48fbd970c9e8ce3355dff (diff) | |
| download | gdb-ecd4c78dddefe41d9fc7b947fdf4e76b743b2b02.zip gdb-ecd4c78dddefe41d9fc7b947fdf4e76b743b2b02.tar.gz gdb-ecd4c78dddefe41d9fc7b947fdf4e76b743b2b02.tar.bz2 | |
aarch64: Add 128-bit system register flags
In preparation for the implementation of 128-bit system register
support across the toolchain, this patch adds the feature flag
F_REG_128 and adds it to relevant system registers in
`aarch64-sys-regs.def'.
Given the shared nature of this file, this change is made necessary
initially to implement argument validation in the `__arm_rsr128' and
`__armwsr128' ACLE intrinsics in GCC, but will be of subsequent use in
the binutils implementation of the corresponding `mrrs' and `msrr'
instructions.
Regression tested on aarch64-linux-gnu, no regressions.
opcodes/ChangeLog:
* aarch64-opc.h (F_REG_128): New flag.
* aarch64-sys-regs.def (par_el1): Add F_REG_128 flag.
(rcwmask_el1): Likewise.
(rcwsmask_el1): Likewise.
(ttbr0_el1): Likewise.
(ttbr0_el12): Likewise.
(ttbr0_el2): Likewise.
(ttbr1_el1): Likewise.
(ttbr1_el12): Likewise.
(ttbr1_el2): Likewise.
(vttbr_el2): Likewise.
| -rw-r--r-- | opcodes/aarch64-opc.h | 3 | ||||
| -rw-r--r-- | opcodes/aarch64-sys-regs.def | 20 |
2 files changed, 13 insertions, 10 deletions
diff --git a/opcodes/aarch64-opc.h b/opcodes/aarch64-opc.h index fe1f882..75d2feb 100644 --- a/opcodes/aarch64-opc.h +++ b/opcodes/aarch64-opc.h @@ -295,6 +295,9 @@ verify_constraints (const struct aarch64_inst *, const aarch64_insn, bfd_vma, #undef F_REG_ALIAS #define F_REG_ALIAS (1 << 6) /* Register name aliases another. */ +#undef F_REG_128 +#define F_REG_128 (1 << 7) /* System regsister implementable as 128-bit wide. */ + /* PSTATE field name for the MSR instruction this is encoded in "op1:op2:CRm". Part of CRm can be used to encode <pstatefield>. E.g. CRm[3:1] for SME. In order to set/get full PSTATE field name use flag F_REG_IN_CRM and below diff --git a/opcodes/aarch64-sys-regs.def b/opcodes/aarch64-sys-regs.def index dc43126..96bdadb 100644 --- a/opcodes/aarch64-sys-regs.def +++ b/opcodes/aarch64-sys-regs.def @@ -594,7 +594,7 @@ SYSREG ("oslar_el1", CPENC (2,0,1,0,4), F_REG_WRITE, AARCH64_NO_FEATURES) SYSREG ("oslsr_el1", CPENC (2,0,1,1,4), F_REG_READ, AARCH64_NO_FEATURES) SYSREG ("pan", CPENC (3,0,4,2,3), F_ARCHEXT, AARCH64_FEATURE (PAN)) - SYSREG ("par_el1", CPENC (3,0,7,4,0), 0, AARCH64_NO_FEATURES) + SYSREG ("par_el1", CPENC (3,0,7,4,0), F_REG_128, AARCH64_NO_FEATURES) SYSREG ("pmbidr_el1", CPENC (3,0,9,10,7), F_REG_READ|F_ARCHEXT, AARCH64_FEATURE (PROFILE)) SYSREG ("pmblimitr_el1", CPENC (3,0,9,10,0), F_ARCHEXT, AARCH64_FEATURE (PROFILE)) SYSREG ("pmbptr_el1", CPENC (3,0,9,10,1), F_ARCHEXT, AARCH64_FEATURE (PROFILE)) @@ -756,8 +756,8 @@ SYSREG ("prlar_el2", CPENC (3,4,6,8,1), F_ARCHEXT, AARCH64_FEATURE (V8R)) SYSREG ("prselr_el1", CPENC (3,0,6,2,1), F_ARCHEXT, AARCH64_FEATURE (V8R)) SYSREG ("prselr_el2", CPENC (3,4,6,2,1), F_ARCHEXT, AARCH64_FEATURE (V8R)) - SYSREG ("rcwmask_el1", CPENC (3,0,13,0,6), F_ARCHEXT, AARCH64_FEATURE (THE)) - SYSREG ("rcwsmask_el1", CPENC (3,0,13,0,3), F_ARCHEXT, AARCH64_FEATURE (THE)) + SYSREG ("rcwmask_el1", CPENC (3,0,13,0,6), F_ARCHEXT|F_REG_128, AARCH64_FEATURE (THE)) + SYSREG ("rcwsmask_el1", CPENC (3,0,13,0,3), F_ARCHEXT|F_REG_128, AARCH64_FEATURE (THE)) SYSREG ("revidr_el1", CPENC (3,0,0,0,6), F_REG_READ, AARCH64_NO_FEATURES) SYSREG ("rgsr_el1", CPENC (3,0,1,0,5), F_ARCHEXT, AARCH64_FEATURE (MEMTAG)) SYSREG ("rmr_el1", CPENC (3,0,12,0,2), 0, AARCH64_NO_FEATURES) @@ -1046,13 +1046,13 @@ SYSREG ("trfcr_el1", CPENC (3,0,1,2,1), F_ARCHEXT, AARCH64_FEATURE (V8_4A)) SYSREG ("trfcr_el12", CPENC (3,5,1,2,1), F_ARCHEXT, AARCH64_FEATURE (V8_4A)) SYSREG ("trfcr_el2", CPENC (3,4,1,2,1), F_ARCHEXT, AARCH64_FEATURE (V8_4A)) - SYSREG ("ttbr0_el1", CPENC (3,0,2,0,0), 0, AARCH64_NO_FEATURES) - SYSREG ("ttbr0_el12", CPENC (3,5,2,0,0), F_ARCHEXT, AARCH64_FEATURE (V8_1A)) - SYSREG ("ttbr0_el2", CPENC (3,4,2,0,0), F_ARCHEXT, AARCH64_FEATURE (V8A)) + SYSREG ("ttbr0_el1", CPENC (3,0,2,0,0), F_REG_128, AARCH64_NO_FEATURES) + SYSREG ("ttbr0_el12", CPENC (3,5,2,0,0), F_ARCHEXT|F_REG_128, AARCH64_FEATURE (V8_1A)) + SYSREG ("ttbr0_el2", CPENC (3,4,2,0,0), F_ARCHEXT|F_REG_128, AARCH64_FEATURE (V8A)) SYSREG ("ttbr0_el3", CPENC (3,6,2,0,0), 0, AARCH64_NO_FEATURES) - SYSREG ("ttbr1_el1", CPENC (3,0,2,0,1), 0, AARCH64_NO_FEATURES) - SYSREG ("ttbr1_el12", CPENC (3,5,2,0,1), F_ARCHEXT, AARCH64_FEATURE (V8_1A)) - SYSREG ("ttbr1_el2", CPENC (3,4,2,0,1), F_ARCHEXT, AARCH64_FEATURES (2, V8A, V8_1A)) + SYSREG ("ttbr1_el1", CPENC (3,0,2,0,1), F_REG_128, AARCH64_NO_FEATURES) + SYSREG ("ttbr1_el12", CPENC (3,5,2,0,1), F_ARCHEXT|F_REG_128, AARCH64_FEATURE (V8_1A)) + SYSREG ("ttbr1_el2", CPENC (3,4,2,0,1), F_ARCHEXT|F_REG_128, AARCH64_FEATURES (2, V8A, V8_1A)) SYSREG ("uao", CPENC (3,0,4,2,4), F_ARCHEXT, AARCH64_FEATURE (V8_2A)) SYSREG ("vbar_el1", CPENC (3,0,12,0,0), 0, AARCH64_NO_FEATURES) SYSREG ("vbar_el12", CPENC (3,5,12,0,0), F_ARCHEXT, AARCH64_FEATURE (V8_1A)) @@ -1069,7 +1069,7 @@ SYSREG ("vstcr_el2", CPENC (3,4,2,6,2), F_ARCHEXT, AARCH64_FEATURE (V8_4A)) SYSREG ("vsttbr_el2", CPENC (3,4,2,6,0), F_ARCHEXT, AARCH64_FEATURES (2, V8A, V8_4A)) SYSREG ("vtcr_el2", CPENC (3,4,2,1,2), 0, AARCH64_NO_FEATURES) - SYSREG ("vttbr_el2", CPENC (3,4,2,1,0), F_ARCHEXT, AARCH64_FEATURE (V8A)) + SYSREG ("vttbr_el2", CPENC (3,4,2,1,0), F_ARCHEXT|F_REG_128, AARCH64_FEATURE (V8A)) SYSREG ("zcr_el1", CPENC (3,0,1,2,0), F_ARCHEXT, AARCH64_FEATURE (SVE)) SYSREG ("zcr_el12", CPENC (3,5,1,2,0), F_ARCHEXT, AARCH64_FEATURE (SVE)) SYSREG ("zcr_el2", CPENC (3,4,1,2,0), F_ARCHEXT, AARCH64_FEATURE (SVE)) |