diff options
| author | Nelson Chu <nelson.chu@sifive.com> | 2021-07-22 13:47:07 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson.chu@sifive.com> | 2021-12-16 16:04:53 +0800 |
| commit | 23ff54c27d535727c1c467abdd4bed8fbd46d4a6 (patch) | |
| tree | da2e9d4b80b472a0fc4d8c1829859f30d2f720b1 /gas | |
| parent | 7d554943ba2f60d7562a7f7360b683885313dec8 (diff) | |
RISC-V: Support svinval extension with frozen version 1.0.
According to the privileged spec, there are five new instructions for
svinval extension. Two of them (HINVAL.VVMA and HINVAL.GVMA) need to
enable the hypervisor extension. But there is no implementation of
hypervisor extension in mainline for now, so let's consider the related
issues later.
31..25 24..20 19..15 14..12 11...7 6..2 1..0
sinval.vma 0001011 rs2 rs1 000 00000 11100 11
sfence.w.inval 0001100 00000 00000 000 00000 11100 11
sfence.inval.ir 0001100 00001 00000 000 00000 11100 11
hinval.vvma 0010011 rs2 rs1 000 00000 11100 11
hinval.gvma 0110011 rs2 rs1 000 00000 11100 11
This patch is cherry-picked from the riscv integration branch since the
svinval extension is frozen for now. Besides, we fix the funct7 encodings
of hinval.vvma and hinval.gvma, from 0x0011011 and 0x0111011 to 0x0010011
and 0x0110011.
bfd/
* elfxx-riscv.c (riscv_supported_std_s_ext): Added svinval.
(riscv_multi_subset_supports): Handle INSN_CLASS_SVINVAL.
gas/
* testsuite/gas/riscv/svinval.d: New testcase.
* testsuite/gas/riscv/svinval.s: Likewise.
include/
* opcode/riscv-opc.h: Added encodings for svinval.
* opcode/riscv.h (enum riscv_insn_class): Added INSN_CLASS_SVINVAL.
opcodes/
* riscv-opc.c (riscv_opcodes): Added svinval instructions.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/testsuite/gas/riscv/svinval.d | 15 | ||||
| -rw-r--r-- | gas/testsuite/gas/riscv/svinval.s | 5 |
2 files changed, 20 insertions, 0 deletions
diff --git a/gas/testsuite/gas/riscv/svinval.d b/gas/testsuite/gas/riscv/svinval.d new file mode 100644 index 0000000000..e159f16d59 --- /dev/null +++ b/gas/testsuite/gas/riscv/svinval.d @@ -0,0 +1,15 @@ +#as: -march=rv32i_svinval +#source: svinval.s +#objdump: -d + +.*:[ ]+file format .* + + +Disassembly of section .text: + +0+000 <.text>: +[ ]+0:[ ]+16b50073[ ]+sinval.vma[ ]+a0,a1 +[ ]+4:[ ]+18000073[ ]+sfence.w.inval +[ ]+8:[ ]+18100073[ ]+sfence.inval.ir +[ ]+c:[ ]+26b50073[ ]+hinval.vvma[ ]+a0,a1 +[ ]+10:[ ]+66b50073[ ]+hinval.gvma[ ]+a0,a1 diff --git a/gas/testsuite/gas/riscv/svinval.s b/gas/testsuite/gas/riscv/svinval.s new file mode 100644 index 0000000000..629d5ef51b --- /dev/null +++ b/gas/testsuite/gas/riscv/svinval.s @@ -0,0 +1,5 @@ + sinval.vma a0, a1 + sfence.w.inval + sfence.inval.ir + hinval.vvma a0, a1 + hinval.gvma a0, a1 |