Alexandre Ghiti 7e3811521d riscv: Implement flush_cache_vmap() ... The RISC-V kernel needs a sfence.vma after a page table modification: we used to rely on the vmalloc fault handling to emit an sfence.vma, but commit 7d3332be01 ("riscv: mm: Pre-allocate PGD entries for vmalloc/modules area") got rid of this path for 64-bit kernels, so now we need to explicitly emit a sfence.vma in flush_cache_vmap(). Note that we don't need to implement flush_cache_vunmap() as the generic code should emit a flush tlb after unmapping a vmalloc region. Fixes: 7d3332be01 ("riscv: mm: Pre-allocate PGD entries for vmalloc/modules area") Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20230725132246.817726-1-alexghiti@rivosinc.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2023-08-10 08:54:29 -07:00
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asm	riscv: Implement flush_cache_vmap()	2023-08-10 08:54:29 -07:00
uapi/asm	RISC-V Patches for the 6.5 Merge Window, Part 2	2023-07-07 10:07:19 -07:00