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| author | Björn Töpel <bjorn@rivosinc.com> | 2024-06-05 13:40:48 +0200 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-06-26 17:42:41 +0200 |
| commit | 6e6c5e21b8cbe94b89d2e848afad4e6fe2a7abd8 (patch) | |
| tree | 2560ac4f07a2fcf8ac7c23f2d5d5456c8a7fd2d0 | |
| parent | riscv: mm: Refactor create_linear_mapping_range() for memory hot add (diff) | |
| download | linux-6e6c5e21b8cbe94b89d2e848afad4e6fe2a7abd8.tar.xz linux-6e6c5e21b8cbe94b89d2e848afad4e6fe2a7abd8.zip | |
riscv: mm: Add pfn_to_kaddr() implementation
The pfn_to_kaddr() function is used by KASAN's memory hotplugging
path. Add the missing function to the RISC-V port, so that it can be
built with MHP and CONFIG_KASAN.
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20240605114100.315918-6-bjorn@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| -rw-r--r-- | arch/riscv/include/asm/page.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index 115ac98b8d72..235fd45d998d 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -188,6 +188,11 @@ extern phys_addr_t __phys_addr_symbol(unsigned long x); unsigned long kaslr_offset(void); +static __always_inline void *pfn_to_kaddr(unsigned long pfn) +{ + return __va(pfn << PAGE_SHIFT); +} + #endif /* __ASSEMBLY__ */ #define virt_addr_valid(vaddr) ({ \ |