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path: root/target/ppc/helper.h
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2021-11-09target/ppc: Move ddedpd[q],denbcd[q],dscli[q],dscri[q] to decodetreeLuis Pires
Move the following instructions to decodetree: ddedpd: DFP Decode DPD To BCD ddedpdq: DFP Decode DPD To BCD Quad denbcd: DFP Encode BCD To DPD denbcdq: DFP Encode BCD To DPD Quad dscli: DFP Shift Significand Left Immediate dscliq: DFP Shift Significand Left Immediate Quad dscri: DFP Shift Significand Right Immediate dscriq: DFP Shift Significand Right Immediate Quad Also deleted dfp-ops.c.inc, now that all PPC DFP instructions were moved to decodetree. Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-16-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dct{dp,qpq},dr{sp,dpq},dc{f,t}fix[q],dxex[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dctdp: DFP Convert To DFP Long dctqpq: DFP Convert To DFP Extended drsp: DFP Round To DFP Short drdpq: DFP Round To DFP Long dcffix: DFP Convert From Fixed dcffixq: DFP Convert From Fixed Quad dctfix: DFP Convert To Fixed dctfixq: DFP Convert To Fixed Quad dxex: DFP Extract Biased Exponent dxexq: DFP Extract Biased Exponent Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-15-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dqua[q], drrnd[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dqua: DFP Quantize dquaq: DFP Quantize Quad drrnd: DFP Reround drrndq: DFP Reround Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-14-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dquai[q], drint{x,n}[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dquai: DFP Quantize Immediate dquaiq: DFP Quantize Immediate Quad drintx: DFP Round to FP Integer With Inexact drintxq: DFP Round to FP Integer With Inexact Quad drintn: DFP Round to FP Integer Without Inexact drintnq: DFP Round to FP Integer Without Inexact Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-13-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dcmp{u,o}[q],dts{tex,tsf,tsfi}[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dcmpu: DFP Compare Unordered dcmpuq: DFP Compare Unordered Quad dcmpo: DFP Compare Ordered dcmpoq: DFP Compare Ordered Quad dtstex: DFP Test Exponent dtstexq: DFP Test Exponent Quad dtstsf: DFP Test Significance dtstsfq: DFP Test Significance Quad dtstsfi: DFP Test Significance Immediate dtstsfiq: DFP Test Significance Immediate Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-12-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move d{add,sub,mul,div,iex}[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dadd: DFP Add daddq: DFP Add Quad dsub: DFP Subtract dsubq: DFP Subtract Quad dmul: DFP Multiply dmulq: DFP Multiply Quad ddiv: DFP Divide ddivq: DFP Divide Quad diex: DFP Insert Biased Exponent diexq: DFP Insert Biased Exponent Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-11-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Move dtstdc[q]/dtstdg[q] to decodetreeLuis Pires
Move the following instructions to decodetree: dtstdc: DFP Test Data Class dtstdcq: DFP Test Data Class Quad dtstdg: DFP Test Data Group dtstdgq: DFP Test Data Group Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-10-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement DCTFIXQQLuis Pires
Implement the following PowerISA v3.1 instruction: dctfixqq: DFP Convert To Fixed Quadword Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-8-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement DCFFIXQQLuis Pires
Implement the following PowerISA v3.1 instruction: dcffixqq: DFP Convert From Fixed Quadword Quad Signed-off-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211029192417.400707-5-luis.pires@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement pextd instructionMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-11-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-11-09target/ppc: Implement pdepd instructionMatheus Ferst
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20211029202424.175401-10-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-06-19tcg: Combine dh_is_64bit and dh_is_signed to dh_typecodeRichard Henderson
We will shortly be interested in distinguishing pointers from integers in the helper's declaration, as well as a true void return. We currently have two parallel 1 bit fields; merge them and expand to a 3 bit field. Our current maximum is 7 helper arguments, plus the return makes 8 * 3 = 24 bits used within the uint32_t typemask. Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-03target/ppc: Implement cfuged instructionMatheus Ferst
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20210601193528.2533031-12-matheus.ferst@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-05-19target/ppc: Mark helper_raise_exception* as noreturnRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20210517205025.3777947-8-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-05-04target/ppc: Create helper_scvRichard Henderson
Perform the test against FSCR_SCV at runtime, in the helper. This means we can remove the incorrect set against SCV in ppc_tr_init_disas_context and do not need to add an HFLAGS bit. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210323184340.619757-6-richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12target/ppc: add vmulh{su}d instructionsLijun Pan
vmulhsd: Vector Multiply High Signed Doubleword vmulhud: Vector Multiply High Unsigned Doubleword Signed-off-by: Lijun Pan <ljp@linux.ibm.com> Message-Id: <20200724045845.89976-5-ljp@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12target/ppc: add vmulh{su}w instructionsLijun Pan
vmulhsw: Vector Multiply High Signed Word vmulhuw: Vector Multiply High Unsigned Word Signed-off-by: Lijun Pan <ljp@linux.ibm.com> Message-Id: <20200724045845.89976-4-ljp@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12target/ppc: convert vmuluwm to tcg_gen_gvec_mulLijun Pan
Convert the original implementation of vmuluwm to the more generic tcg_gen_gvec_mul. Signed-off-by: Lijun Pan <ljp@linux.ibm.com> Message-Id: <20200701234344.91843-5-ljp@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-06-02target/ppc: Use tcg_gen_gvec_rotlvRichard Henderson
Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-05-27target/ppc: Add support for scv and rfscv instructionsNicholas Piggin
POWER9 adds scv and rfscv instructions and the system call vectored interrupt. Linux does not support this instruction yet but it has been tested with a modified kernel that runs on real hardware. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20200507115328.789175-1-npiggin@gmail.com> [dwg: Corrected an overlong line] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-03-24target/ppc: Fix ISA v3.0 (POWER9) slbia implementationNicholas Piggin
The new ISA v3.0 slbia variants have not been implemented for TCG, which can lead to crashing when a POWER9 machine boots Linux using the hash MMU, for example ("disable_radix" kernel command line). Add them. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20200319064439.1020571-1-npiggin@gmail.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> [dwg: Fixed compile error for USER_ONLY builds] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-02-02target/ppc: Add privileged message send facilitiesCédric Le Goater
The Processor Control facility for POWER8 processors and later provides a mechanism for the hypervisor to send messages to other threads in the system (msgsnd instruction) and cause hypervisor-level exceptions. Privileged non-hypervisor programs can also send messages (msgsndp instruction) but are restricted to the threads of the same subprocessor and cause privileged-level exceptions. The Directed Privileged Doorbell Exception State (DPDES) register reflects the state of pending privileged doorbell exceptions and can be used to modify that state. The register can be used to read and modify the state of privileged doorbell exceptions for all threads of a subprocessor and thus is a shared facility for that subprocessor. The register can be read/written by the hypervisor and read by the supervisor if enabled in the HFSCR, otherwise a hypervisor facility unavailable exception is generated. The privileged message send and clear instructions (msgsndp & msgclrp) are used to generate and clear the presence of a directed privileged doorbell exception, respectively. The msgsndp instruction can be used to target any thread of the current subprocessor, msgclrp acts on the thread issuing the instruction. These instructions are privileged, but will generate a hypervisor facility unavailable exception if not enabled in the HFSCR and executed in privileged non-hypervisor state. The HV facility unavailable exception will be addressed in other patch. Add and implement this register and instructions by reading or modifying the pending interrupt state of the cpu. Note that TCG only supports one thread per core and so we only need to worry about the cpu making the access. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20200120104935.24449-2-clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17target/ppc: Add SPR TBU40Suraj Jitindar Singh
The spr TBU40 is used to set the upper 40 bits of the timebase register, present on POWER5+ and later processors. This register can only be written by the hypervisor, and cannot be read. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20191128134700.16091-5-clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17target/ppc: Work [S]PURR implementation and add HV supportSuraj Jitindar Singh
The Processor Utilisation of Resources Register (PURR) and Scaled Processor Utilisation of Resources Register (SPURR) provide an estimate of the resources used by the thread, present on POWER7 and later processors. Currently the [S]PURR registers simply count at the rate of the timebase. Preserve this behaviour but rework the implementation to store an offset like the timebase rather than doing the calculation manually. Also allow hypervisor write access to the register along with the currently available read access. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ clg: rebased on current ppc tree ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20191128134700.16091-3-clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17target/ppc: Implement the VTB for HV accessSuraj Jitindar Singh
The virtual timebase register (VTB) is a 64-bit register which increments at the same rate as the timebase register, present on POWER8 and later processors. The register is able to be read/written by the hypervisor and read by the supervisor. All other accesses are illegal. Currently the VTB is just an alias for the timebase (TB) register. Implement the VTB so that is can be read/written independent of the TB. Make use of the existing method for accessing timebase facilities where by the compensation is stored and used to compute the value on reads/is updated on writes. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> [ clg: rebased on current ppc tree ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20191128134700.16091-2-clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-04target/ppc: update {get,set}_dfp{64,128}() helper functions to read/write ↵Mark Cave-Ayland
DFP numbers correctly Since commit ef96e3ae96 "target/ppc: move FP and VMX registers into aligned vsr register array" FP registers are no longer stored consecutively in memory and so the current method of combining FP register pairs into DFP numbers is incorrect. Firstly update the definition of the dh_*_fprp defines in helper.h to reflect that FP registers are now stored as part of an array of ppc_vsr_t elements rather than plain uint64_t elements, and then introduce a new ppc_fprp_t type which conceptually represents a DFP even-odd register pair to be consumed by the DFP helper functions. Finally update the new DFP {get,set}_dfp{64,128}() helper functions to convert between DFP numbers and DFP even-odd register pairs correctly, making use of the existing VsrD() macro to access the correct elements regardless of host endian. Fixes: ef96e3ae96 "target/ppc: move FP and VMX registers into aligned vsr register array" Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190926185801.11176-4-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-21target/ppc: Optimize emulation of vclzw instructionStefan Brankovic
Optimize Altivec instruction vclzw (Vector Count Leading Zeros Word). This instruction counts the number of leading zeros of each word element in source register and places result in the appropriate word element of destination register. Counting is to be performed in four iterations of for loop(one for each word elemnt of source register vB). Every iteration consists of loading appropriate word element from source register, counting leading zeros with tcg_gen_clzi_i32, and saving the result in appropriate word element of destination register. Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1563200574-11098-7-git-send-email-stefan.brankovic@rt-rk.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-21target/ppc: Optimize emulation of vclzd instructionStefan Brankovic
Optimize Altivec instruction vclzd (Vector Count Leading Zeros Doubleword). This instruction counts the number of leading zeros of each doubleword element in source register and places result in the appropriate doubleword element of destination register. Using tcg-s count leading zeros instruction two times(once for each doubleword element of source register vB) and placing result in appropriate doubleword element of destination register vD. Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1563200574-11098-6-git-send-email-stefan.brankovic@rt-rk.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-21target/ppc: Optimize emulation of vgbbd instructionStefan Brankovic
Optimize altivec instruction vgbbd (Vector Gather Bits by Bytes by Doubleword) All ith bits (i in range 1 to 8) of each byte of doubleword element in source register are concatenated and placed into ith byte of appropriate doubleword element in destination register. Following solution is done for both doubleword elements of source register in parallel, in order to reduce the number of instructions needed(that's why arrays are used): First, both doubleword elements of source register vB are placed in appropriate element of array avr. Bits are gathered in 2x8 iterations(2 for loops). In first iteration bit 1 of byte 1, bit 2 of byte 2,... bit 8 of byte 8 are in their final spots so avr[i], i={0,1} can be and-ed with tcg_mask. For every following iteration, both avr[i] and tcg_mask variables have to be shifted right for 7 and 8 places, respectively, in order to get bit 1 of byte 2, bit 2 of byte 3.. bit 7 of byte 8 in their final spots so shifted avr values(saved in tmp) can be and-ed with new value of tcg_mask... After first 8 iteration(first loop), all the first bits are in their final places, all second bits but second bit from eight byte are in their places... only 1 eight bit from eight byte is in it's place). In second loop we do all operations symmetrically, in order to get other half of bits in their final spots. Results for first and second doubleword elements are saved in result[0] and result[1] respectively. In the end those results are saved in appropriate doubleword element of destination register vD. Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1563200574-11098-5-git-send-email-stefan.brankovic@rt-rk.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-21target/ppc: Optimize emulation of vsl and vsr instructionsStefan Brankovic
Optimization of altivec instructions vsl and vsr(Vector Shift Left/Rigt). Perform shift operation (left and right respectively) on 128 bit value of register vA by value specified in bits 125-127 of register vB. Lowest 3 bits in each byte element of register vB must be identical or result is undefined. For vsl instruction, the first step is bits 125-127 of register vB have to be saved in variable sh. Then, the highest sh bits of the lower doubleword element of register vA are saved in variable shifted, in order not to lose those bits when shift operation is performed on the lower doubleword element of register vA, which is the next step. After shifting the lower doubleword element shift operation is performed on higher doubleword element of vA, with replacement of the lowest sh bits(that are now 0) with bits saved in shifted. For vsr instruction, firstly, the bits 125-127 of register vB have to be saved in variable sh. Then, the lowest sh bits of the higher doubleword element of register vA are saved in variable shifted, in odred not to lose those bits when the shift operation is performed on the higher doubleword element of register vA, which is the next step. After shifting higher doubleword element, shift operation is performed on lower doubleword element of vA, with replacement of highest sh bits(that are now 0) with bits saved in shifted. Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1563200574-11098-3-git-send-email-stefan.brankovic@rt-rk.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-21target/ppc: Optimize emulation of lvsl and lvsr instructionsStefan Brankovic
Adding simple macro that is calling tcg implementation of appropriate instruction if altivec support is active. Optimization of altivec instruction lvsl (Load Vector for Shift Left). Place bytes sh:sh+15 of value 0x00 || 0x01 || 0x02 || ... || 0x1E || 0x1F in destination register. Sh is calculated by adding 2 source registers and getting bits 60-63 of result. First, the bits [28-31] are placed from EA to variable sh. After that, the bytes are created in the following way: sh:(sh+7) of X(from description) by multiplying sh with 0x0101010101010101 followed by addition of the result with 0x0001020304050607. Value obtained is placed in higher doubleword element of vD. (sh+8):(sh+15) by adding the result of previous multiplication with 0x08090a0b0c0d0e0f. Value obtained is placed in lower doubleword element of vD. Optimization of altivec instruction lvsr (Load Vector for Shift Right). Place bytes 16-sh:31-sh of value 0x00 || 0x01 || 0x02 || ... || 0x1E || 0x1F in destination register. Sh is calculated by adding 2 source registers and getting bits 60-63 of result. First, the bits [28-31] are placed from EA to variable sh. After that, the bytes are created in the following way: sh:(sh+7) of X(from description) by multiplying sh with 0x0101010101010101 followed by substraction of the result from 0x1011121314151617. Value obtained is placed in higher doubleword element of vD. (sh+8):(sh+15) by substracting the result of previous multiplication from 0x18191a1b1c1d1e1f. Value obtained is placed in lower doubleword element of vD. Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1563200574-11098-2-git-send-email-stefan.brankovic@rt-rk.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: improve VSX_FMADD with new GEN_VSX_HELPER_VSX_MADD macroMark Cave-Ayland
Introduce a new GEN_VSX_HELPER_VSX_MADD macro for the generator function which enables the source and destination registers to be decoded at translation time. This enables the determination of a or m form to be made at translation time so that a single helper function can now be used for both variants. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-16-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: decode target register in VSX_EXTRACT_INSERT at translation timeMark Cave-Ayland
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-15-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: decode target register in VSX_VECTOR_LOAD_STORE_LENGTH at ↵Mark Cave-Ayland
translation time Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-14-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_R2_AB macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_R2_AB macro which performs the decode based upon rA and rB at translation time. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_R2 macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_R2 macro which performs the decode based upon rD and rB at translation time. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-12-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_R3 macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_R3 macro which performs the decode based upon rD, rA and rB at translation time. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-11-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_X1 macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_X1 macro which performs the decode based upon xB at translation time. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-10-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_X2_AB macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_X2_AB macro which performs the decode based upon xA and xB at translation time. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-9-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_X2 macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_X2 macro which performs the decode based upon xT and xB at translation time. With the previous change to the xscvqpdp generator and helper functions the opcode parameter is no longer required in the common case and can be removed. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-8-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce separate generator and helper for xscvqpdpMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new generator and helper function which perform the decode based upon xT and xB at translation time. The xscvqpdp helper is the only 2 parameter xT/xB implementation that requires the opcode to be passed as an additional parameter, so handling this separately allows us to optimise the conversion in the next commit. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-7-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce GEN_VSX_HELPER_X3 macro to fpu_helper.cMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new GEN_VSX_HELPER_X3 macro which performs the decode based upon xT, xA and xB at translation time. With the previous changes to the VSX_CMP generator and helper macros the opcode parameter is no longer required in the common case and can be removed. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-6-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-07-02target/ppc: introduce separate VSX_CMP macro for xvcmp* instructionsMark Cave-Ayland
Rather than perform the VSR register decoding within the helper itself, introduce a new VSX_CMP macro which performs the decode based upon xT, xA and xB at translation time. Subsequent commits will make the same changes for other instructions however the xvcmp* instructions are different in that they return a set of flags to be optionally written back to the crf[6] register. Move this logic from the helper function to the generator function, along with the float_status update. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190616123751.781-5-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-05-29target/ppc: Use vector variable shifts for VSL, VSR, VSRARichard Henderson
The gvec expanders take care of masking the shift amount against the element width. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190518191430.21686-2-richard.henderson@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-26target/ppc: Flush the TLB locally when the LPIDR is writtenBenjamin Herrenschmidt
Our TCG TLB only tags whether it's a HV vs a guest access, so it must be flushed when the LPIDR is changed. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20190215170029.15641-10-clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-18target/ppc: convert vmin* and vmax* to vector operationsRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20190215100058.20015-18-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-18target/ppc: convert vadd*s and vsub*s to vector operationsRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20190215100058.20015-17-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-18target/ppc: Add helper_mfvscrRichard Henderson
This is required before changing the representation of the register. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20190215100058.20015-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-18target/ppc: Pass integer to helper_mtvscrRichard Henderson
We can re-use this helper elsewhere if we're not passing in an entire vector register. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20190215100058.20015-10-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-18target/ppc: convert vsplt[bhw] to use vector operationsRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20190215100058.20015-5-mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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