linux-kernel - [PATCH 0/2] swiotlb: Rate-limit printing and 64-bit memory debugging

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Date:   Mon, 31 Oct 2016 16:45:02 +0100
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Jonathan Corbet <corbet@....net>
Cc:     Magnus Damm <magnus.damm@...il.com>, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-renesas-soc@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 0/2] swiotlb: Rate-limit printing and 64-bit memory debugging

	Hi Konrad, Jon,

This patch series contains two improvements for the SWIOTLB subsystem.

The first patch adds rate-limiting to an error message, to avoid
flooding the kernel log.
The second patch adds a kernel command line option to aid debugging when
developing support for DMA to memory outside the 32-bit address space.

Thanks for your comments!

Geert Uytterhoeven (2):
  swiotlb: Rate-limit printing when running out of SW-IOMMU space
  swiotlb: Add swiotlb=nobounce debug option

 Documentation/kernel-parameters.txt |  3 ++-
 lib/swiotlb.c                       | 23 +++++++++++++++++++----
 2 files changed, 21 insertions(+), 5 deletions(-)

-- 
1.9.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds