From: Christoph Hellwig <hch@infradead.org>
To: Gary Guo <gary@garyguo.net>
Cc: Anup Patel <Anup.Patel@wdc.com>,
Palmer Dabbelt <palmer@sifive.com>,
Christoph Hellwig <hch@infradead.org>,
Atish Patra <atish.patra@wdc.com>,
Albert Ou <aou@eecs.berkeley.edu>,
opensbi@lists.infradead.org,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>
Subject: Re: [PATCH v4 0/5] TLB/I$ flush cleanups and improvements
Date: Wed, 10 Apr 2019 00:04:46 -0700 [thread overview]
Message-ID: <20190410070446.GA18678@infradead.org> (raw)
In-Reply-To: <cover.1553647082.git.gary@garyguo.net>
On Wed, Mar 27, 2019 at 12:41:11AM +0000, Gary Guo wrote:
> From: Gary Guo <gary@garyguo.net>
>
> This is the v4 of the general TLB/I$ flush improvement series.
> I still have tlbi_method=ipi being the default as opposed to what
> Atish suggests, as:
> * There are still usage of BBL in the wild
> * OpenSBI's support isn't made into stable yet.
> * OpenSBI's support on the dev branch has some racing issues yet to resolve.
Can you clarify the races? I know Anup had some FIFO-order commits
in opensbi about a week ago, did they address you concerns?
Anup, do you have performance numbers for the old opensbi vs your
implementation of the optimized TLB flushing vs this patch?
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next prev parent reply other threads:[~2019-04-10 7:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-27 0:41 [PATCH v4 0/5] TLB/I$ flush cleanups and improvements Gary Guo
2019-03-27 0:41 ` [PATCH v4 1/5] riscv: move flush_icache_{all,mm} to cacheflush.c Gary Guo
2019-03-27 7:06 ` Christoph Hellwig
2019-03-28 6:45 ` Anup Patel
2019-03-27 0:41 ` [PATCH v4 3/5] riscv: fix sbi_remote_sfence_vma{,_asid} Gary Guo
2019-03-27 7:08 ` Christoph Hellwig
2019-03-28 6:47 ` Anup Patel
2019-03-27 0:41 ` [PATCH v4 4/5] riscv: rewrite tlb flush for performance Gary Guo
2019-03-27 7:25 ` Christoph Hellwig
2019-03-27 13:56 ` Gary Guo
2019-03-28 16:17 ` Christoph Hellwig
2019-03-28 16:39 ` Gary Guo
2019-03-28 16:55 ` Christoph Hellwig
2019-03-27 0:41 ` [PATCH v4 2/5] riscv: move switch_mm to its own file Gary Guo
2019-03-27 7:08 ` Christoph Hellwig
2019-03-27 7:18 ` Christoph Hellwig
2019-03-28 6:47 ` Anup Patel
2019-03-27 0:41 ` [PATCH v4 5/5] riscv: implement IPI-based remote TLB shootdown Gary Guo
2019-03-27 7:31 ` Christoph Hellwig
2019-03-27 14:03 ` Gary Guo
2019-03-28 16:36 ` Christoph Hellwig
2019-03-28 16:47 ` Gary Guo
2019-03-28 16:57 ` Christoph Hellwig
2019-03-28 6:50 ` Anup Patel
2019-04-10 7:04 ` Christoph Hellwig [this message]
2019-04-10 9:01 ` [PATCH v4 0/5] TLB/I$ flush cleanups and improvements Anup Patel
2019-04-10 10:11 ` Christoph Hellwig
2019-04-10 10:22 ` Anup Patel
2019-04-11 1:24 ` Atish Patra
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