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openblas: drop SSE_GENERIC target

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Fixes #10856

The SSE_GENERIC target fails to build with a "sgemm_kernel.o: No such file
or directory" error. Several upstream bug reports exist for this:

https://github.com/xianyi/OpenBLAS/issues/502
https://github.com/xianyi/OpenBLAS/issues/685

In both cases, upstream suggests using a different target definition
instead.  E.G.  from issue 685:

You may use NORTHWOOD on x86: make TARGET=NORTHWOOD that uses SSE2
instructions.  It's very hard to find non-SSE2 x86 CPUs today.  For x86-64
use the PRESCOTT target

So drop the SSE_GENERIC target.  The only x86_64 variant we support not
covered by a more specific openblas target is the default variant, nocona
and jaguar.

Nocona was a Xeon variant of the P4 "Prescott" architecture, so use the
PRESCOTT openblas target:

https://en.wikipedia.org/wiki/Xeon#Nocona_and_Irwindale

Jaguar is from the Bobcat family, so use the BOBCAT openblas target:

https://en.wikipedia.org/wiki/List_of_AMD_microprocessors#Bobcat_core_architecture_(APU)

[Peter: add Jaguar as pointed out by Arnout]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Peter Korsgaard 2018-04-01 10:46:41 +02:00
parent 8ba80282c3
commit 5e6fa93483
1 changed files with 2 additions and 2 deletions
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4
package/openblas/Config.in
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@ -3,7 +3,7 @@ config BR2_PACKAGE_OPENBLAS_DEFAULT_TARGET
default "P2" if BR2_x86_pentium2
default "KATMAI" if BR2_x86_pentium3
default "NORTHWOOD" if BR2_x86_pentium4
default "PRESCOTT" if BR2_x86_prescott
default "PRESCOTT" if BR2_x86_prescott || BR2_x86_nocona
default "BANIAS" if BR2_x86_pentium_m
default "CORE2" if BR2_x86_core2
default "NEHALEM" if BR2_x86_corei7 || BR2_x86_silvermont
@ -14,9 +14,9 @@ config BR2_PACKAGE_OPENBLAS_DEFAULT_TARGET
default "OPTERON" if BR2_x86_opteron
default "OPTERON_SSE3" if BR2_x86_opteron_sse3
default "BARCELONA" if BR2_x86_barcelona
default "JAGUAR" if BR2_x86_jaguar
default "STEAMROLLER" if BR2_x86_steamroller
default "VIAC3" if BR2_x86_c3 || BR2_x86_c32
default "SSE_GENERIC" if BR2_X86_CPU_HAS_SSE
default "POWER4" if BR2_powerpc_power4
default "POWER5" if BR2_powerpc_power5
default "POWER6" if BR2_powerpc_power6