Re: [PATCH master] RISC-V: interrupts: fix Zifencei emulation on rv64

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Dec 03, 2021 at 07:33:40AM +0100, Ahmad Fatoum wrote:
> Zifencei emulaton was added for bare bones 32-bit targets, but the code
> is there on 64-bit too. The instruction skip at the end of the function
> skips 4 bytes, the size of an instruction on both rv32 and rv64. The
> instruction decoder however assumes instructions are size(long) bytes,
> which is 8 > 4 on rv64. Fix this.
> 
> Signed-off-by: Ahmad Fatoum <ahmad@xxxxxx>
> ---
>  arch/riscv/cpu/interrupts.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks

Sascha

> 
> diff --git a/arch/riscv/cpu/interrupts.c b/arch/riscv/cpu/interrupts.c
> index 0e8951b61968..1f2d7b885737 100644
> --- a/arch/riscv/cpu/interrupts.c
> +++ b/arch/riscv/cpu/interrupts.c
> @@ -122,7 +122,7 @@ unsigned long handle_trap(struct pt_regs *regs)
>  		goto skip;
>  
>  	if (regs->cause == 2) { /* illegal instruction */
> -		switch(*(unsigned long *)regs->epc) {
> +		switch(*(u32 *)regs->epc) {
>  		case 0x0000100f: /* fence.i */
>  			goto skip;
>  		default:
> -- 
> 2.33.0
> 
> 
> _______________________________________________
> barebox mailing list
> barebox@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/barebox
> 

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox



[Index of Archives]     [Linux Embedded]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux