diff options
| author | Xiang W <[email protected]> | 2024-09-23 09:37:53 +0800 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2024-09-27 13:09:51 +0530 |
| commit | 2ffa0a153d804910c20b82974bfe2dedcf35a777 (patch) | |
| tree | fe26c4d7334a5eb83cc8d4ad93bd5cff2df7232e /lib | |
| parent | 3e141a6950a276632439b202b220e49f3ae6969b (diff) | |
lib: sbi: fix missing high 32bits when sbi_cppc_write on rv32
sbi_cppc_write was writing to the a1 register only, which under rv32
would cause the high 32 bits to always be 0. This patch fixes that.
Closes: https://github.com/riscv-software-src/opensbi/issues/334
Signed-off-by: Xiang W <[email protected]>
Reported-by: Wesley Norris <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sbi/sbi_ecall_cppc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/sbi/sbi_ecall_cppc.c b/lib/sbi/sbi_ecall_cppc.c index c26bb401..dab78299 100644 --- a/lib/sbi/sbi_ecall_cppc.c +++ b/lib/sbi/sbi_ecall_cppc.c @@ -32,7 +32,13 @@ static int sbi_ecall_cppc_handler(unsigned long extid, unsigned long funcid, #endif break; case SBI_EXT_CPPC_WRITE: - ret = sbi_cppc_write(regs->a0, regs->a1); +#if __riscv_xlen == 32 + temp = regs->a2; + temp = (temp << 32) | regs->a1; +#else + temp = regs->a1; +#endif + ret = sbi_cppc_write(regs->a0, temp); break; case SBI_EXT_CPPC_PROBE: ret = sbi_cppc_probe(regs->a0); |