[RFC PATCH v2 01/10] riscv: Define ioremap_cache for RISC-V

Himanshu Chauhan
2025-10-29T11:27:08Z

bert and einj drivers use ioremap_cache for mapping entries
but ioremap_cache is not defined for RISC-V.

Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
---
arch/riscv/include/asm/io.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h
index 09bb5f57a9d3..5550b28f38db 100644
--- a/arch/riscv/include/asm/io.h
+++ b/arch/riscv/include/asm/io.h
@@ -142,6 +142,9 @@ __io_writes_outs(outs, u64, q, __io_pbr(), __io_paw())
#ifdef CONFIG_MMU
#define arch_memremap_wb(addr, size, flags) \
((__force void *)ioremap_prot((addr), (size), __pgprot(_PAGE_KERNEL)))
+
+#define ioremap_cache(addr, size) \
+ ((__force void *)ioremap_prot((addr), (size), PAGE_KERNEL))
#endif

#endif /* _ASM_RISCV_IO_H */
--
2.43.0