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2021-10-22target/riscv: Organise the CPU propertiesAlistair Francis
Organise the CPU properties so that standard extensions come first then followed by experimental extensions. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: b6598570f60c5ee7f402be56d837bb44b289cc4d.1634531504.git.alistair.francis@wdc.com
2021-10-22target/riscv: Remove some unused macrosAlistair Francis
Since commit 1a9540d1f1a ("target/riscv: Drop support for ISA spec version 1.09.1") these definitions are unused, remove them. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: f4d8a7a035f39c0a35d44c1e371c5c99cc2fa15a.1634531504.git.alistair.francis@wdc.com
2021-10-22target/riscv: fix TB_FLAGS bits overlapping bug for rvv/rvhFrank Chang
TB_FLAGS mem_idx bits was extended from 2 bits to 3 bits in commit: c445593, but other TB_FLAGS bits for rvv and rvh were not shift as well so these bits may overlap with each other when rvv is enabled. Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20211015074627.3957162-2-frank.chang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-22target/riscv: Fix orc.b implementationPhilipp Tomsich
The earlier implementation fell into a corner case for bytes that were 0x01, giving a wrong result (but not affecting our application test cases for strings, as an ASCII value 0x01 is rare in those...). This changes the algorithm to: 1. Mask out the high-bit of each bytes (so that each byte is <= 127). 2. Add 127 to each byte (i.e. if the low 7 bits are not 0, this will overflow into the highest bit of each byte). 3. Bitwise-or the original value back in (to cover those cases where the source byte was exactly 128) to saturate the high-bit. 4. Shift-and-mask (implemented as a mask-and-shift) to extract the MSB of each byte into its LSB. 5. Multiply with 0xff to fan out the LSB to all bits of each byte. Fixes: d7a4fcb034 ("target/riscv: Add orc.b instruction for Zbb, removing gorc/gorci") Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Reported-by: Vincent Palatin <vpalatin@rivosinc.com> Tested-by: Vincent Palatin <vpalatin@rivosinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20211013184125.2010897-1-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-22target/riscv: line up all of the registers in the info register dumpTravis Geiselbrecht
Ensure the columns for all of the register names and values line up. No functional change, just a minor tweak to the output. Signed-off-by: Travis Geiselbrecht <travisg@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211009055019.545153-1-travisg@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-22target/riscv: Pass the same value to oprsz and maxsz for vmv.v.vFrank Chang
oprsz and maxsz are passed with the same value in commit: eee2d61e202. However, vmv.v.v was missed in that commit and should pass the same value as well in its tcg_gen_gvec_2_ptr() call. Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20211007081803.1705656-1-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-15target/riscv: Remove exit_tb and lookup_and_goto_ptrRichard Henderson
GDB single-stepping is now handled generically, which means we don't need to do anything in the wrappers. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-15target/riscv: Remove dead code after exceptionRichard Henderson
We have already set DISAS_NORETURN in generate_exception, which makes the exit_tb unreachable. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-07target/riscv: Set mstatus_hs.[SD|FS] bits if Clean and V=1 in mark_fs_dirty()Frank Chang
When V=1, both vsstauts.FS and HS-level sstatus.FS are in effect. Modifying the floating-point state when V=1 causes both fields to be set to 3 (Dirty). However, it's possible that HS-level sstatus.FS is Clean and VS-level vsstatus.FS is Dirty at the time mark_fs_dirty() is called when V=1. We can't early return for this case because we still need to set sstatus.FS to Dirty according to spec. Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Vincent Chen <vincent.chen@sifive.com> Tested-by: Vincent Chen <vincent.chen@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210921020234.123448-1-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Remove RVB (replaced by Zb[abcs])Philipp Tomsich
With everything classified as Zb[abcs] and pre-0.93 draft-B instructions that are not part of Zb[abcs] removed, we can remove the remaining support code for RVB. Note that RVB has been retired for good and misa.B will neither mean 'some' or 'all of' Zb*: https://lists.riscv.org/g/tech-bitmanip/message/532 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> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-16-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Add zext.h instructions to Zbb, removing pack/packu/packhPhilipp Tomsich
The 1.0.0 version of Zbb does not contain pack/packu/packh. However, a zext.h instruction is provided (built on pack/packh from pre-0.93 draft-B) is available. This commit adds zext.h and removes the pack* instructions. Note that the encodings for zext.h are different between RV32 and RV64, which is handled through REQUIRE_32BIT. 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: 20210911140016.834071-15-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Add rev8 instruction, removing grev/greviPhilipp Tomsich
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>
2021-10-07target/riscv: Add a REQUIRE_32BIT macroPhilipp Tomsich
With the changes to Zb[abcs], there's some encodings that are different in RV64 and RV32 (e.g., for rev8 and zext.h). For these, we'll need a helper macro allowing us to select on RV32, as well. 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> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-13-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Add orc.b instruction for Zbb, removing gorc/gorciPhilipp Tomsich
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>
2021-10-07target/riscv: Reassign instructions to the Zbb-extensionPhilipp Tomsich
This reassigns the instructions that are part of Zbb into it, with the notable exceptions of the instructions (rev8, zext.w and orc.b) that changed due to gorci, grevi and pack not being part of Zb[abcs]. 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> Acked-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-11-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Add instructions of the Zbc-extensionPhilipp Tomsich
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>
2021-10-07target/riscv: Reassign instructions to the Zbs-extensionPhilipp Tomsich
The following instructions are part of Zbs: - b{set,clr,ext,inv} - b{set,clr,ext,inv}i 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> Acked-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-9-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Remove shift-one instructions (proposed Zbo in pre-0.93 draft-B)Philipp Tomsich
The Zb[abcs] ratification package does not include the proposed shift-one instructions. There currently is no clear plan to whether these (or variants of them) will be ratified as Zbo (or a different extension) or what the timeframe for such a decision could be. 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> Acked-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-8-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Remove the W-form instructions from ZbsPhilipp Tomsich
Zbs 1.0.0 (just as the 0.93 draft-B before) does not provide for W-form instructions for Zbs (single-bit instructions). Remove them. Note that these instructions had already been removed for the 0.93 version of the draft-B extention and have not been present in the binutils patches circulating in January 2021. 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> Acked-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-7-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Reassign instructions to the Zba-extensionPhilipp Tomsich
The following instructions are part of Zba: - add.uw (RV64 only) - sh[123]add (RV32 and RV64) - sh[123]add.uw (RV64-only) - slli.uw (RV64-only) 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> Acked-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-6-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Add x-zba, x-zbb, x-zbc and x-zbs propertiesPhilipp Tomsich
The bitmanipulation ISA extensions will be ratified as individual small extension packages instead of a large B-extension. The first new instructions through the door (these have completed public review) are Zb[abcs]. This adds new 'x-zba', 'x-zbb', 'x-zbc' and 'x-zbs' properties for these in target/riscv/cpu.[ch]. 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> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210911140016.834071-5-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: clwz must ignore high bits (use shift-left & changed logic)Philipp Tomsich
Assume clzw being executed on a register that is not sign-extended, such as for the following sequence that uses (1ULL << 63) | 392 as the operand to clzw: bseti a2, zero, 63 addi a2, a2, 392 clzw a3, a2 The correct result of clzw would be 23, but the current implementation returns -32 (as it performs a 64bit clz, which results in 0 leading zero bits, and then subtracts 32). Fix this by changing the implementation to: 1. shift the original register up by 32 2. performs a target-length (64bit) clz 3. return 32 if no bits are set Marking this instruction as 'w-form' (i.e., setting ctx->w) would not correctly model the behaviour, as the instruction should not perform a zero-extensions on the input (after all, it is not a .uw instruction) and the result is always in the range 0..32 (so neither a sign-extension nor a zero-extension on the result will ever be needed). Consequently, we do not set ctx->w and mark the instruction as EXT_NONE. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Reviewed-by: LIU Zhiwei<zhiwei_liu@c-sky.com> Message-id: 20210911140016.834071-4-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: fix clzw implementation to operate on arg1Philipp Tomsich
The refactored gen_clzw() uses ret as its argument, instead of arg1. Fix it. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210911140016.834071-3-philipp.tomsich@vrull.eu Fixes: 60903915050 ("target/riscv: Add DisasExtend to gen_unary") Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07target/riscv: Introduce temporary in gen_add_uw()Philipp Tomsich
Following the recent changes in translate.c, gen_add_uw() causes failures on CF3 and SPEC2017 due to the reuse of arg1. Fix these regressions by introducing a temporary. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210911140016.834071-2-philipp.tomsich@vrull.eu Fixes: 191d1dafae9c ("target/riscv: Add DisasExtend to gen_arith*") Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21hw/core: Make do_unaligned_access noreturnRichard Henderson
While we may have had some thought of allowing system-mode to return from this hook, we have no guests that require this. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-21include/exec: Move cpu_signal_handler declarationRichard Henderson
There is nothing target specific about this. The implementation is host specific, but the declaration is 100% common. Reviewed-By: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-21target/riscv: csr: Rename HCOUNTEREN_CY and friendsBin Meng
The macro name HCOUNTEREN_CY suggests it is for CSR HCOUNTEREN, but in fact it applies to M-mode and S-mode CSR too. Rename these macros to have the COUNTEREN_ prefix. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210915084601.24304-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21target/riscv: Backup/restore mstatus.SD bit when virtual register swappedFrank Chang
When virtual registers are swapped, mstatus.SD bit should also be backed up/restored. Otherwise, mstatus.SD bit will be incorrectly kept across the world switches. Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Vincent Chen <vincent.chen@sifive.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210914013717.881430-1-frank.chang@sifive.com [ Changes by AF: - Convert variable to a uint64_t to fix clang error ] Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21target/riscv: Expose interrupt pending bits as GPIO linesAlistair Francis
Expose the 12 interrupt pending bits in MIP as GPIO lines. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 069d6162f0bc2f4a4f5a44e73f6442b11c703c53.1630301632.git.alistair.francis@wdc.com
2021-09-21target/riscv: Fix satp writeLIU Zhiwei
These variables should be target_ulong. If truncated to int, the bool conditions they indicate will be wrong. As satp is very important for Linux, this bug almost fails every boot. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210901124539.222868-1-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21target/riscv: Update the ePMP CSR addressAlistair Francis
Update the ePMP CSRs to match the 0.9.3 ePMP spec https://github.com/riscv/riscv-tee/blob/61455747230a26002d741f64879dd78cc9689323/Smepmp/Smepmp.pdf Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 28c908de60b9b04fa20e63d113885c98586053f3.1630543194.git.alistair.francis@wdc.com
2021-09-14target/riscv: Restrict cpu_exec_interrupt() handler to sysemuPhilippe Mathieu-Daudé
Restrict cpu_exec_interrupt() and its callees to sysemu. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-Id: <20210911165434.531552-19-f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-14accel/tcg: Add DisasContextBase argument to translator_ld*Ilya Leoshkevich
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> [rth: Split out of a larger patch.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-01target/riscv: Use {get,dest}_gpr for RVVRichard Henderson
Remove gen_get_gpr, as the function becomes unused. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210823195529.560295-25-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Tidy trans_rvh.c.incRichard Henderson
Exit early if check_access fails. Split out do_hlv, do_hsv, do_hlvx subroutines. Use dest_gpr, get_gpr in the new subroutines. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210823195529.560295-24-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use {get,dest}_gpr for RVDRichard Henderson
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: 20210823195529.560295-23-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use {get,dest}_gpr for RVFRichard Henderson
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: 20210823195529.560295-22-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use gen_shift_imm_fn for slli_uwRichard Henderson
Always use tcg_gen_deposit_z_tl; the special case for shamt >= 32 is handled there. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210823195529.560295-21-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use {get,dest}_gpr for RVARichard Henderson
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: 20210823195529.560295-20-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Reorg csr instructionsRichard Henderson
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>
2021-09-01target/riscv: Fix hgeie, hgeipRichard Henderson
We failed to write into *val for these read functions; replace them with read_zero. Only warn about unsupported non-zero value when writing a non-zero value. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210823195529.560295-18-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Fix rmw_sip, rmw_vsip, rmw_hsip vs write-only operationRichard Henderson
We distinguish write-only by passing ret_value as NULL. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210823195529.560295-17-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use {get, dest}_gpr for integer load/storeRichard Henderson
Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-16-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use get_gpr in branchesRichard Henderson
Narrow the scope of t0 in trans_jalr. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-15-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use extracts for sraiw and srliwRichard Henderson
These operations can be done in one instruction on some hosts. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210823195529.560295-14-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use DisasExtend in shift operationsRichard Henderson
These operations are greatly simplified by ctx->w, which allows us to fold gen_shiftw into gen_shift. Split gen_shifti into gen_shift_imm_{fn,tl} like we do for gen_arith_imm_{fn,tl}. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-13-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Add DisasExtend to gen_unaryRichard Henderson
Use ctx->w for ctpopw, which is the only one that can re-use the generic algorithm for the narrow operation. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-12-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Move gen_* helpers for RVBRichard Henderson
Move these helpers near their use by the trans_* functions within insn_trans/trans_rvb.c.inc. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-11-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Move gen_* helpers for RVMRichard Henderson
Move these helpers near their use by the trans_* functions within insn_trans/trans_rvm.c.inc. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-10-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-01target/riscv: Use gen_arith for mulh and mulhuRichard Henderson
Split out gen_mulh and gen_mulhu and use the common helper. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210823195529.560295-9-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-17 13:39:16 +0000