[PATCH v2 00/23] Use asm-generic for mmu_context no-op functions

Nicholas Piggin
2020-08-26T14:57:48Z

It would be nice to be able to modify mmu_context functions or add a
hook without updating all architectures, many of which will be no-ops.

The motivation for this series is a change to lazy mmu handling, but
this series stands on its own as a good cleanup whether or not we end
up making that change.

Arnd, is this something you could take through your asm-generic tree?
(assuming arch maintainers are okay with it)

Thanks,
Nick

Since v1:
- Added acks and feedback from various people.
- Fixed a nommu build error caught by ktp.
- Dropped unicore32.

Nicholas Piggin (23):
asm-generic: add generic MMU versions of mmu context functions
alpha: use asm-generic/mmu_context.h for no-op implementations
arc: use asm-generic/mmu_context.h for no-op implementations
arm: use asm-generic/mmu_context.h for no-op implementations
arm64: use asm-generic/mmu_context.h for no-op implementations
csky: use asm-generic/mmu_context.h for no-op implementations
hexagon: use asm-generic/mmu_context.h for no-op implementations
ia64: use asm-generic/mmu_context.h for no-op implementations
m68k: use asm-generic/mmu_context.h for no-op implementations
microblaze: use asm-generic/mmu_context.h for no-op implementations
mips: use asm-generic/mmu_context.h for no-op implementations
nds32: use asm-generic/mmu_context.h for no-op implementations
nios2: use asm-generic/mmu_context.h for no-op implementations
openrisc: use asm-generic/mmu_context.h for no-op implementations
parisc: use asm-generic/mmu_context.h for no-op implementations
powerpc: use asm-generic/mmu_context.h for no-op implementations
riscv: use asm-generic/mmu_context.h for no-op implementations
s390: use asm-generic/mmu_context.h for no-op implementations
sh: use asm-generic/mmu_context.h for no-op implementations
sparc: use asm-generic/mmu_context.h for no-op implementations
um: use asm-generic/mmu_context.h for no-op implementations
x86: use asm-generic/mmu_context.h for no-op implementations
xtensa: use asm-generic/mmu_context.h for no-op implementations

arch/alpha/include/asm/mmu_context.h | 12 ++---
arch/arc/include/asm/mmu_context.h | 17 +++---
arch/arm/include/asm/mmu_context.h | 26 ++-------
arch/arm64/include/asm/mmu_context.h | 9 ++--
arch/csky/include/asm/mmu_context.h | 8 ++-
arch/hexagon/include/asm/mmu_context.h | 33 ++----------
arch/ia64/include/asm/mmu_context.h | 17 ++----
arch/m68k/include/asm/mmu_context.h | 47 +++-------------
arch/microblaze/include/asm/mmu_context.h | 2 +-
arch/microblaze/include/asm/mmu_context_mm.h | 8 +--
arch/microblaze/include/asm/processor.h | 3 --
arch/mips/include/asm/mmu_context.h | 11 ++--
arch/nds32/include/asm/mmu_context.h | 10 +---
arch/nios2/include/asm/mmu_context.h | 21 ++------
arch/openrisc/include/asm/mmu_context.h | 8 ++-
arch/parisc/include/asm/mmu_context.h | 12 ++---
arch/powerpc/include/asm/mmu_context.h | 22 +++-----
arch/riscv/include/asm/mmu_context.h | 22 +-------
arch/s390/include/asm/mmu_context.h | 9 ++--
arch/sh/include/asm/mmu_context.h | 7 ++-
arch/sh/include/asm/mmu_context_32.h | 9 ----
arch/sparc/include/asm/mmu_context_32.h | 10 ++--
arch/sparc/include/asm/mmu_context_64.h | 10 ++--
arch/um/include/asm/mmu_context.h | 12 ++---
arch/x86/include/asm/mmu_context.h | 6 +++
arch/xtensa/include/asm/mmu_context.h | 11 ++--
arch/xtensa/include/asm/nommu_context.h | 26 +--------
include/asm-generic/mmu_context.h | 57 +++++++++++++++-----
include/asm-generic/nommu_context.h | 19 +++++++
29 files changed, 166 insertions(+), 298 deletions(-)
create mode 100644 include/asm-generic/nommu_context.h

--
2.23.0