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3 Commits

Author SHA1 Message Date
Cyril Bur
48e8c571a4 selftests/powerpc: Test FPU and VMX regs in signal ucontext 
Load up the non volatile FPU and VMX regs and ensure that they are the
expected value in a signal handler

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2016-03-02 23:34:47 +11:00
Cyril Bur
e5ab8be68e selftests/powerpc: Test preservation of FPU and VMX regs across preemption 
Loop in assembly checking the registers with many threads.

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2016-03-02 23:34:47 +11:00
Cyril Bur
01127f1ead selftests/powerpc: Test the preservation of FPU and VMX regs across syscall 
Test that the non volatile floating point and Altivec registers get
correctly preserved across the fork() syscall.

fork() works nicely for this purpose, the registers should be the same for
both parent and child

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
[mpe: Add include guards to basic_asm.h, minor formatting]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2016-03-02 23:34:46 +11:00