[V5,0/3] riscv: Fixup asid_allocator remaining issues

Message

Guo Ren May 30, 2021, 4:49 p.m. UTC

From: Guo Ren <[e-mail]>

The patchset fixes the remaining problems of asid_allocator.
 - Fixup _PAGE_GLOBAL for kernel virtual address mapping
 - Optimize tlb_flush with asid & range

Changes since v4:
 - Fixup double PAGE_SIZE add in local_flush_tlb_range_asid
 - Add tlbflush: Optimize coding convention
 - Optimize comment

Changes since v3:
 - Optimize coding convention for
   "riscv: Use use_asid_allocator flush TLB"

Changes since v2:
 - Remove PAGE_UP/DOWN usage in tlbflush.h
 - Optimize variable name

Changes since v1:
 - Drop PAGE_UP wrong fixup
 - Rebase on clean linux-5.13-rc2
 - Add Reviewed-by

Guo Ren (3):
  riscv: Use global mappings for kernel pages
  riscv: Add ASID-based tlbflushing methods
  riscv: tlbflush: Optimize coding convention

 arch/riscv/include/asm/mmu_context.h |  2 ++
 arch/riscv/include/asm/pgtable.h     |  3 +-
 arch/riscv/include/asm/tlbflush.h    | 22 ++++++++++++++
 arch/riscv/mm/context.c              |  2 +-
 arch/riscv/mm/tlbflush.c             | 57 ++++++++++++++++++++++++++++--------
 5 files changed, 71 insertions(+), 15 deletions(-)