bwlp/qemu.git/tcg/ppc, branch spice_video_codecs

tcg/ppc: Optimize 26-bit jumps

2022-10-04T19:13:22+00:00

PowerPC64 processors handle direct branches better than indirect ones, resulting in less stalled cycles and branch misses. However, PPC's tb_target_set_jmp_target() was only using direct branches for 16-bit jumps, while PowerPC64's unconditional branch instructions are able to handle displacements of up to 26 bits. To take advantage of this, now jumps whose displacements fit in between 17 and 26 bits are also converted to direct branches. Reviewed-by: Richard Henderson Signed-off-by: Leandro Lupori [rth: Expanded some commentary.] Signed-off-by: Richard Henderson

tcg/ppc: implement rem[u]_i{32,64} with mod[su][wd]

2022-06-20T19:56:28+00:00

Power ISA v3.0 introduced mod[su][wd] insns that can be used to implement rem[u]_i{32,64}. Signed-off-by: Matheus Ferst Signed-off-by: Richard Henderson

tcg/ppc: Optimize memory ordering generation with lwsync

2022-05-26T20:11:33+00:00

lwsync orders more than just LD_LD, importantly it matches x86 and s390 default memory ordering. Signed-off-by: Nicholas Piggin Reviewed-by: Richard Henderson Message-Id: <20220519135908.21282-4-npiggin@gmail.com> Signed-off-by: Daniel Henrique Barboza

tcg/ppc: ST_ST memory ordering is not provided with eieio

2022-05-26T20:11:33+00:00

eieio does not provide ordering between stores to CI memory and stores to cacheable memory so it can't be used as a general ST_ST barrier. Reviewed-by: Richard Henderson Signed-of-by: Nicholas Piggin Message-Id: <20220519135908.21282-3-npiggin@gmail.com> Signed-off-by: Daniel Henrique Barboza

target/ppc: declare vmsumuh[ms] helper with call flags

2022-05-26T20:11:33+00:00

Move vmsumuhm and vmsumuhs to decodetree, declare vmsumuhm helper with TCG_CALL_NO_RWG, and drop the unused env argument. Signed-off-by: Matheus Ferst Reviewed-by: Richard Henderson Message-Id: <20220517123929.284511-12-matheus.ferst@eldorado.org.br> [danielhb: added #undef VMSUMUHM to fix ppc64 build] Signed-off-by: Daniel Henrique Barboza

Replace config-time define HOST_WORDS_BIGENDIAN

2022-04-06T08:50:37+00:00

Replace a config-time define with a compile time condition define (compatible with clang and gcc) that must be declared prior to its usage. This avoids having a global configure time define, but also prevents from bad usage, if the config header wasn't included before. This can help to make some code independent from qemu too. gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2. Signed-off-by: Marc-André Lureau [ For the s390x parts I'm involved in ] Acked-by: Halil Pasic Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini

tcg/ppc: Implement vector NAND, NOR, EQV

2022-03-04T18:50:41+00:00

Tested-by: Alex Bennée Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson

tcg: Add opcodes for vector nand, nor, eqv

2022-03-04T18:50:41+00:00

We've had placeholders for these opcodes for a while, and should have support on ppc, s390x and avx512 hosts. Tested-by: Alex Bennée Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson

target/ppc: moved vector even and odd multiplication to decodetree

2022-03-02T05:51:36+00:00

Moved the instructions vmulesb, vmulosb, vmuleub, vmuloub, vmulesh, vmulosh, vmuleuh, vmulouh, vmulesw, vmulosw, muleuw and vmulouw from legacy to decodetree. Implemented the instructions vmulesd, vmulosd, vmuleud, vmuloud. Reviewed-by: Richard Henderson Signed-off-by: Lucas Mateus Castro (alqotel) Signed-off-by: Matheus Ferst Message-Id: <20220225210936.1749575-3-matheus.ferst@eldorado.org.br> Signed-off-by: Cédric Le Goater

tcg/ppc: Support raising sigbus for user-only

2022-02-08T21:55:02+00:00

Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson