Messages in this thread | | | Date | Tue, 16 Mar 2010 10:44:59 +0900 | Subject | Re: [PATCH v4 05/11] swiotlb: add swiotlb_set_default_size() | From | FUJITA Tomonori <> |
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On Fri, 12 Mar 2010 20:12:40 +0100 Albert Herranz <albert_herranz@yahoo.es> wrote:
> The current SWIOTLB code uses a default of 64MB for the IO TLB area. > This size can be influenced using a kernel command line parameter "swiotlb". > Unfortunately, the parsing of the kernel command line is done _after_ the > swiotlb is initialized on some architectures. > > This patch adds a new function swiotlb_set_default_size() which can be used > before swiotlb_init() to indicate the desired IO TLB area size in bytes. > > This will be used later to implement a smaller IO TLB on the Nintendo Wii > video game console which just comes with 24MB + 64MB of RAM. > > CC: linuxppc-dev@lists.ozlabs.org > CC: linux-kernel@vger.kernel.org > CC: x86@kernel.org > CC: linux-ia64@vger.kernel.org > Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> > --- > include/linux/swiotlb.h | 2 ++ > lib/swiotlb.c | 20 ++++++++++++++++++++ > 2 files changed, 22 insertions(+), 0 deletions(-)
Please fix the powerpc swiotlb initialization instead.
Calling swiotlb_init() before parsing kernel parameters sounds wrong. Any reasons why you can't fix it?
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