On Fri, 12 Mar 2010 20:12:40 +0100 Albert Herranz <albert_herranz@xxxxxxxx> 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@xxxxxxxxxxxxxxxx > CC: linux-kernel@xxxxxxxxxxxxxxx > CC: x86@xxxxxxxxxx > CC: linux-ia64@xxxxxxxxxxxxxxx > Signed-off-by: Albert Herranz <albert_herranz@xxxxxxxx> > --- > 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? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
