diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-03-12 10:21:25 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-03-13 12:22:02 +0530 |
| commit | 823345ecaed0deb7770d9bac1c881004a6410e91 (patch) | |
| tree | e3b71fb186be4bebd610e796cc12f2d3f33424e6 /lib/sbi/sbi_init.c | |
| parent | 16e7071f6ddd5ba69d416b5a68e4aa191fc19d3b (diff) | |
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_init.c')
| -rw-r--r-- | lib/sbi/sbi_init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c index e7afa1e..11882d6 100644 --- a/lib/sbi/sbi_init.c +++ b/lib/sbi/sbi_init.c @@ -273,7 +273,7 @@ static atomic_t coldboot_lottery = ATOMIC_INITIALIZER(0); void __noreturn sbi_init(struct sbi_scratch *scratch) { bool coldboot = FALSE; - u32 hartid = sbi_current_hartid(); + u32 hartid = current_hartid(); const struct sbi_platform *plat = sbi_platform_ptr(scratch); if ((SBI_HARTMASK_MAX_BITS <= hartid) || @@ -316,7 +316,7 @@ unsigned long sbi_init_count(u32 hartid) */ void __noreturn sbi_exit(struct sbi_scratch *scratch) { - u32 hartid = sbi_current_hartid(); + u32 hartid = current_hartid(); const struct sbi_platform *plat = sbi_platform_ptr(scratch); if (sbi_platform_hart_disabled(plat, hartid)) |