On 1/26/24 02:28, Brian Cain wrote:
static void do_hwlock(CPUHexagonState *env, bool *lock)
{
bql_lock();
if (*lock) {
env->hwlock_pending = true;
cs->halted = true;
cs->exception_index = EXCP_HALTED;
bql_unlock();
cpu_loop_exit(cs);
> -Original Message-
> From: Richard Henderson
> Sent: Wednesday, January 24, 2024 6:22 PM
> To: Brian Cain ; Philippe Mathieu-Daudé
>
> Cc: qemu-devel@nongnu.org; Sid Manning ; Marco
> Liebel ; Matheus Bernardino
>
> Subject: Re: hexagon: modeling a sha
On 1/25/24 01:07, Brian Cain wrote:
Philippe,
For hexagon sysemu, while internally reviewing patches to be upstreamed we noticed that
our design for a lock instruction is not quite suitable. The k0lock instruction will halt
if some other hexagon hardware CPU has already claimed the kernel
Philippe,
For hexagon sysemu, while internally reviewing patches to be upstreamed we
noticed that our design for a lock instruction is not quite suitable. The
k0lock instruction will halt if some other hexagon hardware CPU has already
claimed the kernel lock, only to continue executing once
