diff options
Diffstat (limited to 'encoding.h')
| -rw-r--r-- | encoding.h | 18 |
1 files changed, 12 insertions, 6 deletions
@@ -132,22 +132,28 @@ asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \ __tmp; }) -#define write_csr(reg, val) \ - asm volatile ("csrw " #reg ", %0" :: "r"(val)) +#define write_csr(reg, val) ({ \ + if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \ + asm volatile ("csrw " #reg ", %0" :: "i"(val)); \ + else \ + asm volatile ("csrw " #reg ", %0" :: "r"(val)); }) -#define swap_csr(reg, val) ({ long __tmp; \ - asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "r"(val)); \ +#define swap_csr(reg, val) ({ unsigned long __tmp; \ + if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \ + asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "i"(val)); \ + else \ + asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "r"(val)); \ __tmp; }) #define set_csr(reg, bit) ({ unsigned long __tmp; \ - if (__builtin_constant_p(bit) && (bit) < 32) \ + if (__builtin_constant_p(bit) && (unsigned long)(bit) < 32) \ asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \ else \ asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \ __tmp; }) #define clear_csr(reg, bit) ({ unsigned long __tmp; \ - if (__builtin_constant_p(bit) && (bit) < 32) \ + if (__builtin_constant_p(bit) && (unsigned long)(bit) < 32) \ asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \ else \ asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \ |