kernel/linux.git/tools/testing/selftests/powerpc/math, branch v4.6.4Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v4.6.42016-03-02T12:34:47+00:00selftests/powerpc: Test FPU and VMX regs in signal ucontext2016-03-02T12:34:47+00:00Cyril Burcyrilbur@gmail.com2016-02-29T06:53:45+00:00urn:sha1:48e8c571a4f86978c72c2aa799dc7436d1c38c77
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>
selftests/powerpc: Test preservation of FPU and VMX regs across preemption2016-03-02T12:34:47+00:00Cyril Burcyrilbur@gmail.com2016-02-29T06:53:44+00:00urn:sha1:e5ab8be68e4421d7f8d4e69e2a8ddb3d69508d2a
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>
selftests/powerpc: Test the preservation of FPU and VMX regs across syscall2016-03-02T12:34:46+00:00Cyril Burcyrilbur@gmail.com2016-02-29T06:53:43+00:00urn:sha1:01127f1ead4cef75e2b9b309e0ea95418ccd53bd
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>