Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH] drivers/block/xsysace - replace in(out)_8/in(out)_be16/in(out)_le16 with generic iowrite(read)8/16(be) | Date | Tue, 29 Jan 2013 16:27:34 +0000 |
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On Tuesday 29 January 2013, Alexey Brodkin wrote: > in(out)_8/in(out)_be16/in(out)_le16 are very powerpc/microblaze > specific. To enable use of Xilinx System ACE driver build for other > architectures (for example it's possible to use it on Xilinx ml-509 > board with ARC700 in FPGA) we need to use generic implementation of > accessors. > > Current implementation was successfully built with Sourcery G++ Lite > 2011.03-39 for Power EABI (ppc44x_defconfig). > > Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Is this driver used on powerpc64 as well, or just on microblaze and/or 32 bit powerpc?
On 64 bit powerpc, ioread involves extra overhead because it goes through the PCI error handling implementation, so we should keep using in_le() there.
Arnd
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