s390/fpu: add static FPU save area for init_task

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Previously, the init task did not have an allocated FPU save area and
saving an FPU state was not possible.  Now if the vector extension is
always enabled, provide a static FPU save area to save FPU states of
vector instructions that can be executed quite early.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Hendrik Brueckner 2015-09-29 17:53:22 +02:00 • committed by Martin Schwidefsky

parent b5510d9b68

commit 0ac277790e

3 changed files with 6 additions and 4 deletions

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2

arch/s390/include/asm/processor.h

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4

arch/s390/kernel/entry.S

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4

arch/s390/kernel/process.c

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