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RISC-V: Add 'Sstc' extension and its CSRs

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This commit adds "stimecmp / vstimecmp" Extension (Sstc) and its CSRs.

bfd/ChangeLog:

	* elfxx-riscv.c (riscv_supported_std_s_ext): Add 'Sstc'
	extension to valid 'S' extension list.

gas/ChangeLog:

	* config/tc-riscv.c (enum riscv_csr_class): Add CSR classes for
	'Sstc' extension. (riscv_csr_address): Add handling for new CSR
	classes.
	* testsuite/gas/riscv/csr-dw-regnums.s: Add new CSRs.
	* testsuite/gas/riscv/csr-dw-regnums.d: Likewise.
	* testsuite/gas/riscv/csr.s: Add new CSRs.
	* testsuite/gas/riscv/csr-version-1p9p1.d: Likewise.
	* testsuite/gas/riscv/csr-version-1p9p1.l: Likewise.
	* testsuite/gas/riscv/csr-version-1p10.d: Likewise.
	* testsuite/gas/riscv/csr-version-1p10.l: Likewise.
	* testsuite/gas/riscv/csr-version-1p11.d: Likewise.
	* testsuite/gas/riscv/csr-version-1p11.l: Likewise.
	* testsuite/gas/riscv/csr-version-1p12.d: Likewise.
	* testsuite/gas/riscv/csr-version-1p12.l: Likewise.

include/ChangeLog:

	* opcode/riscv-opc.h (CSR_STIMECMP, CSR_STIMECMPH,
	CSR_VSTIMECMP, CSR_VSTIMECMPH): New CSR macros.
This commit is contained in:
Tsukasa OI
2022-06-24 11:51:56 +09:00
committed by Nelson Chu
parent 713f370809
commit 766077c173
14 changed files with 136 additions and 0 deletions
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10
include/opcode/riscv-opc.h
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@ -2484,6 +2484,11 @@
#define CSR_MHPMEVENT29H 0x73d
#define CSR_MHPMEVENT30H 0x73e
#define CSR_MHPMEVENT31H 0x73f
/* Sstc extension */
#define CSR_STIMECMP 0x14d
#define CSR_STIMECMPH 0x15d
#define CSR_VSTIMECMP 0x24d
#define CSR_VSTIMECMPH 0x25d
/* Unprivileged Floating-Point CSR addresses. */
#define CSR_FFLAGS 0x1
#define CSR_FRM 0x2
@ -3201,6 +3206,11 @@ DECLARE_CSR(mhpmevent28h, CSR_MHPMEVENT28H, CSR_CLASS_SSCOFPMF_32, PRIV_SPEC_CLA
DECLARE_CSR(mhpmevent29h, CSR_MHPMEVENT29H, CSR_CLASS_SSCOFPMF_32, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
DECLARE_CSR(mhpmevent30h, CSR_MHPMEVENT30H, CSR_CLASS_SSCOFPMF_32, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
DECLARE_CSR(mhpmevent31h, CSR_MHPMEVENT31H, CSR_CLASS_SSCOFPMF_32, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
/* Sstc extension */
DECLARE_CSR(stimecmp, CSR_STIMECMP, CSR_CLASS_SSTC, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
DECLARE_CSR(stimecmph, CSR_STIMECMPH, CSR_CLASS_SSTC_32, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
DECLARE_CSR(vstimecmp, CSR_VSTIMECMP, CSR_CLASS_SSTC_AND_H, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
DECLARE_CSR(vstimecmph, CSR_VSTIMECMPH, CSR_CLASS_SSTC_AND_H_32, PRIV_SPEC_CLASS_NONE, PRIV_SPEC_CLASS_NONE)
/* Dropped CSRs. */
DECLARE_CSR(mbase, CSR_MBASE, CSR_CLASS_I, PRIV_SPEC_CLASS_1P9P1, PRIV_SPEC_CLASS_1P10)
DECLARE_CSR(mbound, CSR_MBOUND, CSR_CLASS_I, PRIV_SPEC_CLASS_1P9P1, PRIV_SPEC_CLASS_1P10)