diff options
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/debug_ll.h | 11 | ||||
| -rw-r--r-- | arch/riscv/include/asm/htif.h | 9 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/debug_ll.h b/arch/riscv/include/asm/debug_ll.h index 867c96d797..de9bc5f5fd 100644 --- a/arch/riscv/include/asm/debug_ll.h +++ b/arch/riscv/include/asm/debug_ll.h @@ -53,6 +53,17 @@ static inline void PUTC_LL(char ch) #include <asm/debug_ll_litex.h> +#elif defined CONFIG_DEBUG_RISCVEMU_HTIF + +#include <asm/htif.h> + +#ifndef __ASSEMBLY__ +static inline void PUTC_LL(char ch) +{ + htif_putc(IOMEM(HTIF_DEFAULT_BASE_ADDR), ch); +} +#endif + #endif #ifndef debug_ll_init diff --git a/arch/riscv/include/asm/htif.h b/arch/riscv/include/asm/htif.h index 7312f09d2e..b35afdd98e 100644 --- a/arch/riscv/include/asm/htif.h +++ b/arch/riscv/include/asm/htif.h @@ -11,6 +11,10 @@ #define HTIF_DEV_SYSCALL 0 #define HTIF_CMD_SYSCALL 0 +#define HTIF_DEV_CONSOLE 1 /* blocking character device */ +#define HTIF_CMD_GETCHAR 0 +#define HTIF_CMD_PUTCHAR 1 + #ifndef __ASSEMBLY__ #include <linux/types.h> @@ -26,6 +30,11 @@ static inline void htif_tohost(u8 device, u8 command, u64 arg) __htif_tohost(IOMEM(HTIF_DEFAULT_BASE_ADDR), device, command, arg); } +static inline void htif_putc(void __iomem *base, int c) +{ + __htif_tohost(base, HTIF_DEV_CONSOLE, HTIF_CMD_PUTCHAR, c); +} + #endif #endif |