Commit Graph

117 Commits

Author SHA1 Message Date
Philipp Tomsich
a1095bdcb0 target/riscv: Add rev8 instruction, removing grev/grevi
The 1.0.0 version of Zbb does not contain grev/grevi.  Instead, a
rev8 instruction (equivalent to the rev8 pseudo-instruction built on
grevi from pre-0.93 draft-B) is available.

This commit adds the new rev8 instruction and removes grev/grevi.

Note that there is no W-form of this instruction (both a
sign-extending and zero-extending 32-bit version can easily be
synthesized by following rev8 with either a srai or srli instruction
on RV64) and that the opcode encodings for rev8 in RV32 and RV64 are
different.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911140016.834071-14-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07 08:41:33 +10:00
Philipp Tomsich
d7a4fcb034 target/riscv: Add orc.b instruction for Zbb, removing gorc/gorci
The 1.0.0 version of Zbb does not contain gorc/gorci.  Instead, a
orc.b instruction (equivalent to the orc.b pseudo-instruction built on
gorci from pre-0.93 draft-B) is available, mainly targeting
string-processing workloads.

This commit adds the new orc.b instruction and removed gorc/gorci.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911140016.834071-12-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07 08:41:33 +10:00
Philipp Tomsich
fd4b81a304 target/riscv: Add instructions of the Zbc-extension
The following instructions are part of Zbc:
 - clmul
 - clmulh
 - clmulr

Note that these instructions were already defined in the pre-0.93 and
the 0.93 draft-B proposals, but had not been omitted in the earlier
addition of draft-B to QEmu.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911140016.834071-10-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07 08:33:16 +10:00
Richard Henderson
a974879b45 target/riscv: Reorg csr instructions
Introduce csrr and csrw helpers, for read-only and write-only insns.

Note that we do not properly implement this in riscv_csrrw, in that
we cannot distinguish true read-only (rs1 == 0) from any other zero
write_mask another source register -- this should still raise an
exception for read-only registers.

Only issue gen_io_start for CF_USE_ICOUNT.
Use ctx->zero for csrrc.
Use get_gpr and dest_gpr.

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210823195529.560295-19-richard.henderson@linaro.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01 11:59:12 +10:00
Frank Chang
c24f0422fb target/riscv: rvb: generalized or-combine
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210505160620.15723-14-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08 09:59:45 +10:00
Frank Chang
831ec7f3d1 target/riscv: rvb: generalized reverse
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210505160620.15723-13-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08 09:59:45 +10:00
Alistair Francis
daf866b606 target/riscv: Consolidate RV32/64 32-bit instructions
This patch removes the insn32-64.decode decode file and consolidates the
instructions into the general RISC-V insn32.decode decode tree.

This means that all of the instructions are avaliable in both the 32-bit
and 64-bit builds. This also means that we run a check to ensure we are
running a 64-bit softmmu before we execute the 64-bit only instructions.
This allows us to include the 32-bit instructions in the 64-bit build,
while also ensuring that 32-bit only software can not execute the
instructions.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: db709360e2be47d2f9c6483ab973fe4791aefa77.1619234854.git.alistair.francis@wdc.com
2021-05-11 20:02:07 +10:00
Alistair Francis
5b6c291b8d target/riscv: fpu_helper: Match function defs in HELPER macros
Update the function definitions generated in helper.h to match the
actual function implementations.

Also remove all compile time XLEN checks when building.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 614c369cb0000d070873a647b8aac7e023cba145.1608142916.git.alistair.francis@wdc.com
2020-12-17 21:56:44 -08:00
Alistair Francis
7687537ab0 target/riscv: Split the Hypervisor execute load helpers
Split the hypervisor execute load functions into two seperate functions.
This avoids us having to pass the memop to the C helper functions.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 5b1550f0faa3c435cc77f3c1ae811dea98ab9e36.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:09:00 -08:00
Alistair Francis
743077b35b target/riscv: Remove the hyp load and store functions
Remove the special Virtulisation load and store functions and just use
the standard tcg tcg_gen_qemu_ld_tl() and tcg_gen_qemu_st_tl() functions
instead.

As part of this change we ensure we still run an access check to make
sure we can perform the operations.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 189ac3e53ef2854824d18aad7074c6649f17de2c.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:08:57 -08:00
Alistair Francis
e39a8320b0 target/riscv: Support the Virtual Instruction fault
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 4c744dce9b0b057cbb5cc0f4d4ac75cda682a8af.1597259519.git.alistair.francis@wdc.com
Message-Id: <4c744dce9b0b057cbb5cc0f4d4ac75cda682a8af.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
8c5362acb5 target/riscv: Allow generating hlv/hlvx/hsv instructions
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 477c864312280ea55a98dc84cb01d826751b6c14.1597259519.git.alistair.francis@wdc.com
Message-Id: <477c864312280ea55a98dc84cb01d826751b6c14.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:35 -07:00
LIU Zhiwei
31bf42a26c target/riscv: vector compress instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-61-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:34 -07:00
LIU Zhiwei
e4b83d5c09 target/riscv: vector register gather instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-60-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
ec17e03688 target/riscv: vector slide instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-59-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
126bec3f6f target/riscv: vector element index instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-55-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
78d90cfe85 target/riscv: vector iota instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-54-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
81fbf7daf2 target/riscv: set-X-first mask bit
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-53-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
0db67e1c0c target/riscv: vmfirst find-first-set mask bit
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-52-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
2e88f551df target/riscv: vector mask population count vmpopc
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-51-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
c21f34aebf target/riscv: vector mask-register logical instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-50-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
696b0c260a target/riscv: vector widening floating-point reduction instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-49-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
523547f19e target/riscv: vector single-width floating-point reduction instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-48-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
bba718200b target/riscv: vector wideing integer reduction instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-47-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
fe5c9ab1fc target/riscv: vector single-width integer reduction instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-46-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
878d406ec2 target/riscv: narrowing floating-point/integer type-convert instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-45-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
4514b7b123 target/riscv: widening floating-point/integer type-convert instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-44-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
9210097326 target/riscv: vector floating-point/integer type-convert instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-43-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
64ab584697 target/riscv: vector floating-point merge instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-42-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
121ddbb36f target/riscv: vector floating-point classify instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-41-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
2a68e9e568 target/riscv: vector floating-point compare instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-40-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
1d426b81f7 target/riscv: vector floating-point sign-injection instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-39-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
230b53ddd7 target/riscv: vector floating-point min/max instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-38-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
d9e4ce72a5 target/riscv: vector floating-point square-root instruction
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-37-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
0dd509594f target/riscv: vector widening floating-point fused multiply-add instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-36-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
4aa5a8fed4 target/riscv: vector single-width floating-point fused multiply-add instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-35-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
f7c7b7cd29 target/riscv: vector widening floating-point multiply
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-34-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
0e0057cbe2 target/riscv: vector single-width floating-point multiply/divide instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-33-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
eeffab2ec1 target/riscv: vector widening floating-point add/subtract instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-32-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
ce2a0343f4 target/riscv: vector single-width floating-point add/subtract instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-31-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
9ff3d28739 target/riscv: vector narrowing fixed-point clip instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-30-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
04a614062d target/riscv: vector single-width scaling shift instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-29-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
0a1eaf0036 target/riscv: vector widening saturating scaled multiply-add
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-28-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
9f0ff9e514 target/riscv: vector single-width fractional multiply with rounding and saturation
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-27-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
b7aee48192 target/riscv: vector single-width averaging add and subtract
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-26-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
eb2650e35e target/riscv: vector single-width saturating add and subtract
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-25-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
f020a7a145 target/riscv: vector integer merge and move instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-24-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
2b587b3350 target/riscv: vector widening integer multiply-add instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-23-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
54df813a33 target/riscv: vector single-width integer multiply-add instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-22-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
97b1cba399 target/riscv: vector widening integer multiply instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-21-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
85e6658cfe target/riscv: vector integer divide instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-20-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
958b85f368 target/riscv: vector single-width integer multiply instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-19-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
558fa7797c target/riscv: vector integer min/max instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-18-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
1366fc79be target/riscv: vector integer comparison instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-17-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
7689b028ca target/riscv: vector narrowing integer right shift instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-16-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
3277d955d2 target/riscv: vector single-width bit shift instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-15-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
d3842924cf target/riscv: vector bitwise logical instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-14-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
3a6f8f68ad target/riscv: vector integer add-with-carry / subtract-with-borrow instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-13-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
8fcdf77630 target/riscv: vector widening integer add and subtract
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-12-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
43740e3a3b target/riscv: vector single-width integer add and subtract
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-11-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
268fcca66b target/riscv: add vector amo operations
Vector AMOs operate as if aq and rl bits were zero on each element
with regard to ordering relative to other instructions in the same hart.
Vector AMOs provide no ordering guarantee between element operations
in the same vector AMO instruction

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-10-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
022b4ecf77 target/riscv: add fault-only-first unit stride load
The unit-stride fault-only-fault load instructions are used to
vectorize loops with data-dependent exit conditions(while loops).
These instructions execute as a regular load except that they
will only take a trap on element 0.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-9-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
f732560e35 target/riscv: add vector index load and store instructions
Vector indexed operations add the contents of each element of the
vector offset operand specified by vs2 to the base effective address
to give the effective address of each element.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-8-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:33 -07:00
LIU Zhiwei
751538d5da target/riscv: add vector stride load and store instructions
Vector strided operations access the first memory element at the base address,
and then access subsequent elements at address increments given by the byte
offset contained in the x register specified by rs2.

Vector unit-stride operations access elements stored contiguously in memory
starting from the base effective address. It can been seen as a special
case of strided operations.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-7-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:32 -07:00
LIU Zhiwei
2b7168fc43 target/riscv: add vector configure instruction
vsetvl and vsetvli are two configure instructions for vl, vtype. TB flags
should update after configure instructions. The (ill, lmul, sew ) of vtype
and the bit of (VSTART == 0 && VL == VLMAX) will be placed within tb_flags.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-5-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-07-02 09:19:32 -07:00
Alistair Francis
2761db5fc2 target/riscv: Implement checks for hfence
Call the helper_hyp_tlb_flush() function on hfence instructions which
will generate an illegal insruction execption if we don't have
permission to flush the Hypervisor level TLBs.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-19 08:24:07 -07:00
Michael Clark
0c3e702aca
RISC-V CPU Helpers
Privileged control and status register helpers and page fault handling.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu>
Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-07 08:30:28 +13:00