RE: [PATCH][GCC] aarch64: enable cortex-a710 CPU

[Przemyslaw Wirkus via Gcc-patches]

> -Original Message-
> From: Kyrylo Tkachov 
> Sent: 01 October 2021 13:16
> To: Przemyslaw Wirkus ; gcc-
> patc...@gcc.gnu.org
> Cc: Richard Earnshaw ; Richard Sandiford
> ; Marcus Shawcroft
> 
> Subject: RE: [PATCH][GCC] aarch64: enable cortex-a710 CPU
> 
> 
> 
> > -Original Message-
> > From: Przemyslaw Wirkus 
> > Sent: Wednesday, September 22, 2021 9:37 AM
> > To: gcc-patches@gcc.gnu.org
> > Cc: Richard Earnshaw ; Richard Sandiford
> > ; Marcus Shawcroft
> > ; Kyrylo Tkachov
> 
> > Subject: [PATCH][GCC] aarch64: enable cortex-a710 CPU
> >
> > Patch is adding 'cortex-a710' to -mcpu command line option.
> >
> > gcc/ChangeLog:
> >
> > 2021-09-02  Przemyslaw Wirkus  
> >
> > * config/aarch64/aarch64-cores.def (AARCH64_CORE): New
> > Cortex-A710 core.
> > * config/aarch64/aarch64-tune.md: Regenerate.
> > * doc/invoke.texi: Update docs.
> 
> diff --git a/gcc/config/aarch64/aarch64-cores.def
> b/gcc/config/aarch64/aarch64-cores.def
> index
> 478f7e1c8145365f42f43ad94d90c633aae66ebd..a8027e92fa8f7554e2b19d00f
> 7c85c6ed48a92e5 100644
> --- a/gcc/config/aarch64/aarch64-cores.def
> +++ b/gcc/config/aarch64/aarch64-cores.def
> @@ -166,4 +166,6 @@ AARCH64_CORE("cortex-r82", cortexr82, cortexa53,
> 8R, AARCH64_FL_FOR_ARCH8_R, cor
>  /* Arm ('A') cores. */
>  AARCH64_CORE("cortex-a510",  cortexa510, cortexa55, 9A,
> AARCH64_FL_FOR_ARCH9 | AARCH64_FL_SVE2_BITPERM |
> AARCH64_FL_MEMTAG | AARCH64_FL_I8MM | AARCH64_FL_BF16,
> neoversen2, 0x41, 0xd46, -1)
> 
> +AARCH64_CORE("cortex-a710",  cortexa710, cortexa55, 9A,
> +AARCH64_FL_FOR_ARCH9 | AARCH64_FL_SVE2_BITPERM |
> AARCH64_FL_MEMTAG |
> +AARCH64_FL_I8MM | AARCH64_FL_BF16, neoversen2, 0x41, 0xd47, -1)
> +
> 
> Again, we'd need to revisit big-core scheduling properly at some point, but
> for now I think for the scheduling field (3rd) we should use cortexa57 rather
> than cortexa55.
> Ok with that change.

commit f3cb2114d8b892fed0b6a717dab0a71d3da604bc

> Thanks,
> Kyrill

RE: [PATCH][GCC] aarch64: enable cortex-a710 CPU

[Kyrylo Tkachov via Gcc-patches]

> -Original Message-
> From: Przemyslaw Wirkus 
> Sent: Wednesday, September 22, 2021 9:37 AM
> To: gcc-patches@gcc.gnu.org
> Cc: Richard Earnshaw ; Richard Sandiford
> ; Marcus Shawcroft
> ; Kyrylo Tkachov 
> Subject: [PATCH][GCC] aarch64: enable cortex-a710 CPU
> 
> Patch is adding 'cortex-a710' to -mcpu command line option.
> 
> gcc/ChangeLog:
> 
> 2021-09-02  Przemyslaw Wirkus  
> 
>   * config/aarch64/aarch64-cores.def (AARCH64_CORE): New
>   Cortex-A710 core.
>   * config/aarch64/aarch64-tune.md: Regenerate.
>   * doc/invoke.texi: Update docs.

diff --git a/gcc/config/aarch64/aarch64-cores.def 
b/gcc/config/aarch64/aarch64-cores.def
index 
478f7e1c8145365f42f43ad94d90c633aae66ebd..a8027e92fa8f7554e2b19d00f7c85c6ed48a92e5
 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -166,4 +166,6 @@ AARCH64_CORE("cortex-r82", cortexr82, cortexa53, 8R, 
AARCH64_FL_FOR_ARCH8_R, cor
 /* Arm ('A') cores. */
 AARCH64_CORE("cortex-a510",  cortexa510, cortexa55, 9A,  AARCH64_FL_FOR_ARCH9 
| AARCH64_FL_SVE2_BITPERM | AARCH64_FL_MEMTAG | AARCH64_FL_I8MM | 
AARCH64_FL_BF16, neoversen2, 0x41, 0xd46, -1)
 
+AARCH64_CORE("cortex-a710",  cortexa710, cortexa55, 9A,  AARCH64_FL_FOR_ARCH9 
| AARCH64_FL_SVE2_BITPERM | AARCH64_FL_MEMTAG | AARCH64_FL_I8MM | 
AARCH64_FL_BF16, neoversen2, 0x41, 0xd47, -1)
+

Again, we'd need to revisit big-core scheduling properly at some point, but for 
now I think for the scheduling field (3rd) we should use cortexa57 rather than 
cortexa55.
Ok with that change.
Thanks,
Kyrill