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| author | Anup Patel <anup.patel@wdc.com> | 2020-03-12 07:51:25 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-03-13 09:52:02 +0300 |
| commit | 823345ecaed0deb7770d9bac1c881004a6410e91 (patch) | |
| tree | e3b71fb186be4bebd610e796cc12f2d3f33424e6 /lib/sbi/sbi_trap.c | |
| parent | 16e7071f6ddd5ba69d416b5a68e4aa191fc19d3b (diff) | |
| download | opensbi-823345ecaed0deb7770d9bac1c881004a6410e91.tar.xz | |
include: Make sbi_current_hartid() as macro in riscv_asm.h
The sbi_current_hartid() being a regular function is quite
expensive because for callers it is a function call instead
of a direct CSR read. This patch converts sbi_current_hartid()
into a macro in riscv_asm.h.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'lib/sbi/sbi_trap.c')
| -rw-r--r-- | lib/sbi/sbi_trap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sbi/sbi_trap.c b/lib/sbi/sbi_trap.c index b5fbc5e..b4ba2ac 100644 --- a/lib/sbi/sbi_trap.c +++ b/lib/sbi/sbi_trap.c @@ -217,7 +217,7 @@ void sbi_trap_handler(struct sbi_trap_regs *regs, { int rc = SBI_ENOTSUPP; const char *msg = "trap handler failed"; - u32 hartid = sbi_current_hartid(); + u32 hartid = current_hartid(); ulong mcause = csr_read(CSR_MCAUSE); ulong mtval = csr_read(CSR_MTVAL), mtval2 = 0, mtinst = 0; struct sbi_trap_info trap, *uptrap; |