On Mon, May 17, 2021 at 05:19:06PM +1000, Nicholas Piggin wrote:
> Excerpts from David Gibson's message of May 17, 2021 3:39 pm:
> > On Mon, May 17, 2021 at 12:46:51PM +1000, Nicholas Piggin wrote:
> >> ISA v3.1 adds new variations of wait, specified by the WC field. These
> >> are not compatible w
Excerpts from David Gibson's message of May 17, 2021 3:39 pm:
> On Mon, May 17, 2021 at 12:46:51PM +1000, Nicholas Piggin wrote:
>> ISA v3.1 adds new variations of wait, specified by the WC field. These
>> are not compatible with the wait 0 implementation, because they add
>> additional conditions
On Mon, May 17, 2021 at 12:46:51PM +1000, Nicholas Piggin wrote:
> ISA v3.1 adds new variations of wait, specified by the WC field. These
> are not compatible with the wait 0 implementation, because they add
> additional conditions that cause the processor to resume, which can
> cause software to h
ISA v3.1 adds new variations of wait, specified by the WC field. These
are not compatible with the wait 0 implementation, because they add
additional conditions that cause the processor to resume, which can
cause software to hang or run very slowly.
Add the new wait variants with a trivial no-op i
