powerpc: Remove old unused icswx based coprocessor support
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 19 Jul 2017 04:49:46 +0000 (14:49 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 3 Aug 2017 06:06:52 +0000 (16:06 +1000)
commit6ff4d3e9665274b69cff47f64cc20183465a1de2
tree4f3bba88d8edef0e77997a9df8468df74e34e9ac
parent8f5ca0b3195a9afff448004c2141d01a11f481da
powerpc: Remove old unused icswx based coprocessor support

We have a whole pile of unused code to maintain the ACOP register,
allocate coprocessor PIDs and handle ACOP faults. This mechanism
was used for the HFI adapter on POWER7 which is dead and gone and
whose driver never went upstream. It was used on some A2 core based
stuff that also never saw the light of day.

Take out all that code.

There is still some POWER8 coprocessor code that uses icswx but it's
kernel only and thus doesn't use any of that infrastructure.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/book3s/64/mmu.h
arch/powerpc/include/asm/mmu_context.h
arch/powerpc/include/asm/reg_booke.h
arch/powerpc/mm/Makefile
arch/powerpc/mm/fault.c
arch/powerpc/mm/icswx.c [deleted file]
arch/powerpc/mm/icswx.h [deleted file]
arch/powerpc/mm/icswx_pid.c [deleted file]
arch/powerpc/mm/mmu_context_book3s64.c
arch/powerpc/platforms/Kconfig.cputype