diff mbox series

[v3,1/8] include: sbi: Introduce common endianess conversion macro

Message ID 20240109170020.1731282-2-hchauhan@ventanamicro.com
State Accepted
Headers show
Series Introduce support for SBI Debug Trigger Extension | expand

Commit Message

Himanshu Chauhan Jan. 9, 2024, 5 p.m. UTC 
Introduce cpu_to_lle and lle_to_cpu macros which invoke
correct word length cpu_to_le<64/32> conversion based on
__riscv_xlen.

Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
---
 include/sbi/sbi_byteorder.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
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Patch

diff --git a/include/sbi/sbi_byteorder.h b/include/sbi/sbi_byteorder.h
index 15107e1..db6eb2b 100644
--- a/include/sbi/sbi_byteorder.h
+++ b/include/sbi/sbi_byteorder.h
@@ -58,4 +58,14 @@ 
 #define le64_to_cpu(x)		((uint64_t)BSWAP64(x))
 #endif
 
+#if __riscv_xlen == 64
+#define cpu_to_lle		cpu_to_le64
+#define lle_to_cpu		le64_to_cpu
+#elif __riscv_xlen == 32
+#define cpu_to_lle		cpu_to_le32
+#define lle_to_cpu		le32_to_cpu
+#else
+#error "Unknown __riscv_xlen"
+#endif
+
 #endif /* __SBI_BYTEORDER_H__ */