diff options
| author | Anup Patel <Anup.Patel@wdc.com> | 2019-04-25 11:38:41 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2019-05-17 06:42:11 +0300 |
| commit | a3182c91ef4e7dda90ff080a4132efd3ecb8786a (patch) | |
| tree | 5309b2480f3c6bb9e6df4d7921c7a71ce18dcc4d /arch/riscv/include/asm/irqflags.h | |
| parent | 6dcaf00487ca10d87e53fc8decb2e30f113c955d (diff) | |
| download | linux-a3182c91ef4e7dda90ff080a4132efd3ecb8786a.tar.xz | |
RISC-V: Access CSRs using CSR numbers
We should prefer accessing CSRs using their CSR numbers because:
1. It compiles fine with older toolchains.
2. We can use latest CSR names in #define macro names of CSR numbers
as-per RISC-V spec.
3. We can access newly added CSRs even if toolchain does not recognize
newly addes CSRs by name.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'arch/riscv/include/asm/irqflags.h')
| -rw-r--r-- | arch/riscv/include/asm/irqflags.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/riscv/include/asm/irqflags.h b/arch/riscv/include/asm/irqflags.h index 07a3c6d5706f..1a69b3bcd371 100644 --- a/arch/riscv/include/asm/irqflags.h +++ b/arch/riscv/include/asm/irqflags.h @@ -21,25 +21,25 @@ /* read interrupt enabled status */ static inline unsigned long arch_local_save_flags(void) { - return csr_read(sstatus); + return csr_read(CSR_SSTATUS); } /* unconditionally enable interrupts */ static inline void arch_local_irq_enable(void) { - csr_set(sstatus, SR_SIE); + csr_set(CSR_SSTATUS, SR_SIE); } /* unconditionally disable interrupts */ static inline void arch_local_irq_disable(void) { - csr_clear(sstatus, SR_SIE); + csr_clear(CSR_SSTATUS, SR_SIE); } /* get status and disable interrupts */ static inline unsigned long arch_local_irq_save(void) { - return csr_read_clear(sstatus, SR_SIE); + return csr_read_clear(CSR_SSTATUS, SR_SIE); } /* test flags */ @@ -57,7 +57,7 @@ static inline int arch_irqs_disabled(void) /* set interrupt enabled status */ static inline void arch_local_irq_restore(unsigned long flags) { - csr_set(sstatus, flags & SR_SIE); + csr_set(CSR_SSTATUS, flags & SR_SIE); } #endif /* _ASM_RISCV_IRQFLAGS_H */ |