[0/4] ppc: improve some memory ordering issues

Message

Nicholas Piggin May 19, 2022, 1:59 p.m. UTC

Since RFC[*], this fixes a compile issue noticed by Richard,
and has survived some basic stressing with mttcg.

Thanks,
Nick

[*] https://lists.nongnu.org/archive/html/qemu-ppc/2022-05/msg00046.html

Nicholas Piggin (4):
  target/ppc: Fix eieio memory ordering semantics
  tcg/ppc: ST_ST memory ordering is not provided with eieio
  tcg/ppc: Optimize memory ordering generation with lwsync
  target/ppc: Implement lwsync with weaker memory ordering

 target/ppc/cpu.h         |  4 +++-
 target/ppc/cpu_init.c    | 13 +++++++------
 target/ppc/machine.c     |  3 ++-
 target/ppc/translate.c   | 35 +++++++++++++++++++++++++++++++++--
 tcg/ppc/tcg-target.c.inc | 11 ++++++-----
 5 files changed, 51 insertions(+), 15 deletions(-)

Comments

Daniel Henrique Barboza May 23, 2022, 7:24 p.m. UTC | #1

Queued in gitlab.com/danielhb/qemu/tree/ppc-next. Thanks,


Daniel

On 5/19/22 10:59, Nicholas Piggin wrote:
> Since RFC[*], this fixes a compile issue noticed by Richard,
> and has survived some basic stressing with mttcg.
> 
> Thanks,
> Nick
> 
> [*] https://lists.nongnu.org/archive/html/qemu-ppc/2022-05/msg00046.html
> 
> Nicholas Piggin (4):
>    target/ppc: Fix eieio memory ordering semantics
>    tcg/ppc: ST_ST memory ordering is not provided with eieio
>    tcg/ppc: Optimize memory ordering generation with lwsync
>    target/ppc: Implement lwsync with weaker memory ordering
> 
>   target/ppc/cpu.h         |  4 +++-
>   target/ppc/cpu_init.c    | 13 +++++++------
>   target/ppc/machine.c     |  3 ++-
>   target/ppc/translate.c   | 35 +++++++++++++++++++++++++++++++++--
>   tcg/ppc/tcg-target.c.inc | 11 ++++++-----
>   5 files changed, 51 insertions(+), 15 deletions(-)
>