diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2018-09-26 06:55:15 -0700 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2018-10-03 17:48:02 +0800 |
| commit | e5ea1e586076b6c130e16e4a45749fc65679663d (patch) | |
| tree | e5dcf55284e509420ffda46c07943830f2fb6bcc /arch/riscv/include/asm | |
| parent | 2fab2e9c88c4ceba9156411474b8cfceadeb61fa (diff) | |
riscv: Remove CSR read/write defines in encoding.h
There is no reason to keep two versions of CSR read/write defines
in encoding.h. We already have one set of defines in csr.h, which
is from Linux kernel, and let's drop the one in encoding.h.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Rick Chen <rick@andestech.com>
Diffstat (limited to 'arch/riscv/include/asm')
| -rw-r--r-- | arch/riscv/include/asm/encoding.h | 50 |
1 files changed, 4 insertions, 46 deletions
diff --git a/arch/riscv/include/asm/encoding.h b/arch/riscv/include/asm/encoding.h index f237a72f06..9ea50ce640 100644 --- a/arch/riscv/include/asm/encoding.h +++ b/arch/riscv/include/asm/encoding.h @@ -128,6 +128,7 @@ ((SUPERVISOR) ? PTE_SR(PTE) : PTE_UR(PTE))) #ifdef __riscv + #ifdef CONFIG_64BIT # define MSTATUS_SD MSTATUS64_SD # define SSTATUS_SD SSTATUS64_SD @@ -141,53 +142,10 @@ # define MCAUSE_INT MCAUSE32_INT # define MCAUSE_CAUSE MCAUSE32_CAUSE #endif + #define RISCV_PGSHIFT 12 #define RISCV_PGSIZE BIT(RISCV_PGSHIFT) -#ifndef __ASSEMBLER__ - -#ifdef __GNUC__ - -#define read_csr(reg) ({ unsigned long __tmp; \ - asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \ - __tmp; }) - -#define write_csr(reg, _val) ({ \ -typeof(_val) (val) = (_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) ({ unsigned long __tmp; \ -typeof(_val) (val) = (_val); \ -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; \ -typeof(_bit) (bit) = (_bit); \ -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; \ -typeof(_bit) (bit) = (_bit); \ -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)); \ - __tmp; }) - -#define rdtime() read_csr(time) -#define rdcycle() read_csr(cycle) -#define rdinstret() read_csr(instret) +#endif /* __riscv */ -#endif -#endif -#endif -#endif +#endif /* RISCV_CSR_ENCODING_H */ |