powerpc/vdso32: Don't read cache line size from the datapage on PPC32.
authorChristophe Leroy <christophe.leroy@c-s.fr>
Mon, 2 Dec 2019 07:57:31 +0000 (07:57 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 23 Jan 2020 10:31:15 +0000 (21:31 +1100)
commit2c29eef9fc6f61cfb81b54683be8f116dac80e7a
tree952174262ff04fff05c622d9c8f79673947b7fe1
parentec0895f08f99515194e9fcfe1338becf6f759d38
powerpc/vdso32: Don't read cache line size from the datapage on PPC32.

On PPC32, the cache lines have a fixed size known at build time.

Don't read it from the datapage.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/dfa7b35e27e01964fcda84bf1ed8b2b31cf93826.1575273217.git.christophe.leroy@c-s.fr
arch/powerpc/include/asm/vdso_datapage.h
arch/powerpc/kernel/asm-offsets.c
arch/powerpc/kernel/vdso.c
arch/powerpc/kernel/vdso32/cacheflush.S