[RFC PATCH v1 01/10] riscv: Define ioremap_cache for RISC-V

Himanshu Chauhan
2025-02-27T12:36:44Z

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 1c5c641075d2..e23a4901e928 100644
--- a/arch/riscv/include/asm/io.h
+++ b/arch/riscv/include/asm/io.h
@@ -30,6 +30,9 @@
#define PCI_IOBASE ((void __iomem *)PCI_IO_START)
#endif /* CONFIG_MMU */

+#define ioremap_cache(addr, size) \
+ ((__force void *)ioremap_prot((addr), (size), _PAGE_KERNEL))
+
/*
* Emulation routines for the port-mapped IO space used by some PCI drivers.
* These are defined as being "fully synchronous", but also "not guaranteed to
--
2.43.0