3 Commits

Author	SHA1	Message	Date
Cyril Bur	be4a9f5666	selftests/powerpc: Rework FPU stack placement macros and move to header file ... The FPU regs are placed at the top of the stack frame. Currently the position expected to be passed to the macro. The macros now should be passed the stack frame size and from there they can calculate where to put the regs, this makes the use simpler. Also move them to a header file to be used in an different area of the powerpc selftests Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>	2016-10-04 20:10:11 +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