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From: Tom Rini <trini@konsulko.com>
To: "Ying-Chun Liu (PaulLiu)" <paul.liu@linaro.org>
Cc: u-boot@lists.denx.de, "Marc Zyngier" <maz@kernel.org>,
	"Pierre-Clément Tosi" <ptosi@google.com>
Subject: Re: [PATCH 2/2] arm64: Reduce PT size estimation complexity
Date: Tue, 7 Mar 2023 12:52:35 -0500	[thread overview]
Message-ID: <20230307175235.GP968799@bill-the-cat> (raw)
In-Reply-To: <20230214133814.4173549-3-paul.liu@linaro.org>

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On Tue, Feb 14, 2023 at 09:38:14PM +0800, Ying-Chun Liu (PaulLiu) wrote:

> From: Marc Zyngier <maz@kernel.org>
> 
> count_required_pts()'s complexity is high if mappings are not using the
> largest possible block size (due to some other requirement such as tracking
> dirty pages, for example).
> 
> Let's switch to a method that follows the pattern established with
> the add_map() helper, and make it almost instantaneous instead of
> taking a large amount of time if 2MB mappings are in use instead of
> 1GB.
> 
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
> [ Paul: pick from the Android tree. Fixup Pierre's commit. Rebase to the
>   upstream ]
> Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
> Cc: Tom Rini <trini@konsulko.com>
> Link: https://android.googlesource.com/platform/external/u-boot/+/5d756d147e31a1cdaaa261a50e526404ca5968f5
> Link: https://android.googlesource.com/platform/external/u-boot/+/6be9330601d81545c7c941e3609f35bf68a09059

Applied to u-boot/next, thanks!

-- 
Tom

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      reply	other threads:[~2023-03-07 17:53 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-14 13:38 [PATCH 0/2] Reduce the complexity of add_map() and count_required_pts() Ying-Chun Liu (PaulLiu)
2023-02-14 13:38 ` [PATCH 1/2] arm64: Reduce add_map() complexity Ying-Chun Liu (PaulLiu)
2023-03-07 17:52   ` Tom Rini
2023-08-01  8:53   ` Oliver Graute
2023-08-01 12:09     ` Oliver Graute
2023-08-01 17:31     ` Marc Zyngier
2024-03-08 20:22   ` Fabio Estevam
2024-03-09  9:52     ` Marc Zyngier
2024-03-09 12:29       ` Fabio Estevam
2024-03-09 12:39         ` Marc Zyngier
2024-03-09 14:36           ` Fabio Estevam
2024-03-15 11:56             ` Fabio Estevam
2024-03-15 15:13               ` Pierre-Clément Tosi
2024-03-18 13:31                 ` Fabio Estevam
2024-03-18 13:50                   ` Fabio Estevam
2024-03-18 19:59                   ` Pierre-Clément Tosi
2024-03-18 20:09                     ` Fabio Estevam
2023-02-14 13:38 ` [PATCH 2/2] arm64: Reduce PT size estimation complexity Ying-Chun Liu (PaulLiu)
2023-03-07 17:52   ` Tom Rini [this message]

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