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[Qemu-devel] [PATCH v5 0/8] target/ppc: Optimize emulation of some Altiv
From: |
Stefan Brankovic |
Subject: |
[Qemu-devel] [PATCH v5 0/8] target/ppc: Optimize emulation of some Altivec instructions |
Date: |
Mon, 15 Jul 2019 16:22:46 +0200 |
Optimize emulation of ten Altivec instructions: lvsl, lvsr, vsl, vsr, vpkpx,
vgbbd, vclzb, vclzh, vclzw and vclzd.
This series buils up on and complements recent work of Thomas Murta, Mark
Cave-Ayland and Richard Henderson in the same area. It is based on devising TCG
translation implementation for selected instructions rather than using helpers.
The selected instructions are most of the time idiosyncratic to ppc platform,
so relatively complex TCG translation (without direct mapping to host
instruction that is not possible in these cases) seems to be the best option,
and that approach is presented in this series. The performance improvements
are significant in all cases.
V5:
Fixed vpkpx bug and added it back in patch.
Fixed graphical distortions on OSX 10.3 and 10.4.
Removed conversion of vmrgh and vmrgl instructions to vector operations for
further investigation.
V4:
Addressed Richard's Henderson's suggestions.
Removed vpkpx's optimization for further investigation on graphical distortions
it caused on OSX 10.2-4 guests.
Added opcodes for vector vmrgh(b|h|w) and vmrgl(b|h|w) in tcg.
Implemented vector vmrgh and vmrgl instructions for i386.
Converted vmrgh and vmrgl instructions to vector operations.
V3:
Fixed problem during build.
V2:
Addressed Richard's Henderson's suggestions.
Fixed problem during build on patch 2/8.
Rebased series to the latest qemu code.
Stefan Brankovic (8):
target/ppc: Optimize emulation of lvsl and lvsr instructions
target/ppc: Optimize emulation of vsl and vsr instructions
target/ppc: Optimize emulation of vpkpx instruction
target/ppc: Optimize emulation of vgbbd instruction
target/ppc: Optimize emulation of vclzd instruction
target/ppc: Optimize emulation of vclzw instruction
target/ppc: Optimize emulation of vclzh and vclzb instructions
target/ppc: Refactor emulation of vmrgew and vmrgow instructions
target/ppc/helper.h | 10 -
target/ppc/int_helper.c | 365 --------------------
target/ppc/translate/vmx-impl.inc.c | 656 ++++++++++++++++++++++++++++++++----
3 files changed, 587 insertions(+), 444 deletions(-)
--
2.7.4
- [Qemu-devel] [PATCH v5 0/8] target/ppc: Optimize emulation of some Altivec instructions,
Stefan Brankovic <=
- [Qemu-devel] [PATCH v5 2/8] target/ppc: Optimize emulation of vsl and vsr instructions, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 3/8] target/ppc: Optimize emulation of vpkpx instruction, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 1/8] target/ppc: Optimize emulation of lvsl and lvsr instructions, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 8/8] target/ppc: Refactor emulation of vmrgew and vmrgow instructions, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 4/8] target/ppc: Optimize emulation of vgbbd instruction, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 6/8] target/ppc: Optimize emulation of vclzw instruction, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 5/8] target/ppc: Optimize emulation of vclzd instruction, Stefan Brankovic, 2019/07/15
- [Qemu-devel] [PATCH v5 7/8] target/ppc: Optimize emulation of vclzh and vclzb instructions, Stefan Brankovic, 2019/07/15
- Re: [Qemu-devel] [PATCH v5 0/8] target/ppc: Optimize emulation of some Altivec instructions, David Gibson, 2019/07/16
- Re: [Qemu-devel] [PATCH v5 0/8] target/ppc: Optimize emulation of some Altivec instructions, David Gibson, 2019/07/16