Hi,
On Fri, Jul 08, 2016 at 09:45:01PM -0500, Steven J. Hill wrote:
> Update OCTEON port mangling code to support readq() and
> writeq() functions to allow driver code to be more portable.
> Updates also for word and long function pairs. We also
> remove SWAP_IO_SPACE for OCTEON platforms as the function
> macros are redundant with the new mangling code.
>
> Signed-off-by: Steven J. Hill <steven.hill@xxxxxxxxxx>
> Acked-by: David Daney <david.daney@xxxxxxxxxx>
[...]
> +static inline bool __should_swizzle_bits(volatile void *a)
> +{
> + extern const bool octeon_should_swizzle_table[];
> +
> + unsigned long did = ((unsigned long)a >> 40) & 0xff;
> + return octeon_should_swizzle_table[did];
> +}
v4.8-rc1 OCTEON build is now broken with GCC 6.1 when support for 32-bit
ABIs is enabled:
CC arch/mips/vdso/gettimeofday-o32.o
In file included from /home/aaro/los/work/shared/linux-v4.8-rc1/arch/mips/includ
e/asm/io.h:32:0,
from /home/aaro/los/work/shared/linux-v4.8-rc1/arch/mips/includ
e/asm/page.h:194,
from /home/aaro/los/work/shared/linux-v4.8-rc1/arch/mips/vdso/v
dso.h:26,
from /home/aaro/los/work/shared/linux-v4.8-rc1/arch/mips/vdso/g
ettimeofday.c:11:
/home/aaro/los/work/shared/linux-v4.8-rc1/arch/mips/include/asm/mach-cavium-octe
on/mangle-port.h: In function '__should_swizzle_bits':
/home/aaro/los/work/shared/linux-v4.8-rc1/arch/mips/include/asm/mach-cavium-octe
on/mangle-port.h:19:40: error: right shift count >= width of type [-Werror=shift
-count-overflow]
unsigned long did = ((unsigned long)a >> 40) & 0xff;
A.
