> -----Original Message----- > From: Björn Töpel <bjorn@xxxxxxxxxx> > Sent: Wednesday, May 22, 2024 12:40 AM > To: Wang, Xiao W <xiao.w.wang@xxxxxxxxx>; paul.walmsley@xxxxxxxxxx; > palmer@xxxxxxxxxxx; aou@xxxxxxxxxxxxxxxxx; luke.r.nels@xxxxxxxxx; > xi.wang@xxxxxxxxx > Cc: ast@xxxxxxxxxx; daniel@xxxxxxxxxxxxx; andrii@xxxxxxxxxx; > martin.lau@xxxxxxxxx; eddyz87@xxxxxxxxx; song@xxxxxxxxxx; > yonghong.song@xxxxxxxxx; john.fastabend@xxxxxxxxx; kpsingh@xxxxxxxxxx; > sdf@xxxxxxxxxx; haoluo@xxxxxxxxxx; jolsa@xxxxxxxxxx; linux- > riscv@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; bpf@xxxxxxxxxxxxxxx; > pulehui@xxxxxxxxxx; Li, Haicheng <haicheng.li@xxxxxxxxx>; Wang, Xiao W > <xiao.w.wang@xxxxxxxxx> > Subject: Re: [PATCH] riscv, bpf: Introduce shift add helper with Zba > optimization > > Xiao Wang <xiao.w.wang@xxxxxxxxx> writes: > > > Zba extension is very useful for generating addresses that index into array > > of basic data types. This patch introduces sh2add and sh3add helpers for > > RV32 and RV64 respectively, to accelerate pointer array addressing. > > > > Signed-off-by: Xiao Wang <xiao.w.wang@xxxxxxxxx> > > This is dependent on [1], and given it hasn't been accepted yet, I'd > make this patch part of that series. I would make a new version, combining them as a series. Meanwhile this patch needs rebase on top of bpf-next and enable one more sh3add use cases. BRs, Xiao > > > Björn > > [1] https://lore.kernel.org/linux-riscv/20240516090430.493122-1- > xiao.w.wang@xxxxxxxxx/
