diff options
| author | Samuel Holland <samuel@sholland.org> | 2023-10-31 00:35:41 -0500 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2023-11-02 15:15:46 +0800 |
| commit | 3b00fab616b1150da745bbb36f6644842a24624f (patch) | |
| tree | ec370646297026107f4d3d5865648546945e7e05 | |
| parent | a6a77e47343d0b511136b76da0c853304a3f1423 (diff) | |
riscv: Align the trap handler to 64 bytes
This is required on CPUs which always operate in CLIC mode, such as the
T-HEAD E906 and E907. Per the CLIC specification: "In this mode, the
trap vector base address held in mtvec is constrained to be aligned on a
64-byte or larger power-of-two boundary."
Reported-by: Madushan Nishantha <jlmadushan@gmail.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
| -rw-r--r-- | arch/riscv/cpu/mtrap.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/cpu/mtrap.S b/arch/riscv/cpu/mtrap.S index 6eb3ed1d5a..5cad7b41ff 100644 --- a/arch/riscv/cpu/mtrap.S +++ b/arch/riscv/cpu/mtrap.S @@ -26,7 +26,7 @@ .text /* trap entry */ - .align 2 + .align 6 .global trap_entry trap_entry: addi sp, sp, -32 * REGBYTES |