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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_ecall_legacy.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_ecall_legacy.c')
| -rw-r--r-- | lib/sbi/sbi_ecall_legacy.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sbi/sbi_ecall_legacy.c b/lib/sbi/sbi_ecall_legacy.c index 9099ee3..cffef23 100644 --- a/lib/sbi/sbi_ecall_legacy.c +++ b/lib/sbi/sbi_ecall_legacy.c @@ -8,6 +8,7 @@ * Atish Patra <atish.patra@wdc.com> */ +#include <sbi/riscv_asm.h> #include <sbi/sbi_console.h> #include <sbi/sbi_ecall.h> #include <sbi/sbi_ecall_interface.h> @@ -46,7 +47,7 @@ static int sbi_ecall_legacy_handler(struct sbi_scratch *scratch, { int ret = 0; struct sbi_tlb_info tlb_info; - u32 source_hart = sbi_current_hartid(); + u32 source_hart = current_hartid(); ulong hmask = 0; switch (extid) { |