diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-03-14 09:57:45 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-03-19 09:02:23 +0530 |
| commit | 87a7ef7659e27cdd5ef9a639cd68cf628be3d2d3 (patch) | |
| tree | ac6ddd1dad09a1521dc8c439a7b1a6eca966c9da /lib/sbi/sbi_init.c | |
| parent | 3f8d754c2c7f2937b10013ea2866d7e7ebfee60b (diff) | |
lib: sbi_scratch: Introduce HART id to scratch table
Instead of calling hartid_to_scratch() callback every time when
we want sbi_scratch pointer from HART id, we create a table of
sbi_scratch pointers and use that to get sbi_scratch pointer.
As a result of HART id to scratch table, the conversion of
HART id to sbi_scratch pointer is just 2-3 instructions which
was 9 instructions previously.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c index 11882d6..113987c 100644 --- a/lib/sbi/sbi_init.c +++ b/lib/sbi/sbi_init.c @@ -146,6 +146,11 @@ static void __noreturn init_coldboot(struct sbi_scratch *scratch, u32 hartid) unsigned long *init_count; const struct sbi_platform *plat = sbi_platform_ptr(scratch); + /* Note: This has to be first thing in coldboot init sequence */ + rc = sbi_scratch_init(scratch); + if (rc) + sbi_hart_hang(); + init_count_offset = sbi_scratch_alloc_offset(__SIZEOF_POINTER__, "INIT_COUNT"); if (!init_count_offset) |