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authorBjörn Töpel <[email protected]>2024-06-05 13:40:48 +0200
committerPalmer Dabbelt <[email protected]>2024-06-26 08:42:41 -0700
commit6e6c5e21b8cbe94b89d2e848afad4e6fe2a7abd8 (patch)
tree2560ac4f07a2fcf8ac7c23f2d5d5456c8a7fd2d0
parent007480fe84a9963b6deaa6dceb7039eec03ac007 (diff)
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 <[email protected]> Reviewed-by: Alexandre Ghiti <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
-rw-r--r--arch/riscv/include/asm/page.h5
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) ({ \