linux/tools/testing/selftests/powerpc/math, branch v4.9Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v4.92016-10-06T11:26:40Zselftests/powerpc: Add missing binaries to .gitignores2016-10-06T11:26:40ZMichael Ellermanmpe@ellerman.id.au2016-10-06T09:48:21Zurn:sha1:2ae342e64d987866cf44cded90891ffde89a93a9
Some of the recent new selftests were missing additions to .gitignore,
add them now.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Move VMX stack frame macros to header file2016-10-04T09:10:12ZCyril Burcyrilbur@gmail.com2016-09-23T06:18:15Zurn:sha1:2b4093790abdf0219f8ca192ecc4ecc63cdb5124
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Rework FPU stack placement macros and move to header file2016-10-04T09:10:11ZCyril Burcyrilbur@gmail.com2016-09-23T06:18:14Zurn:sha1:be4a9f56666af94eccf7993661c1a62db033bff9
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>
selftests/powerpc: Check for VSX preservation across userspace preemption2016-10-04T09:10:09ZCyril Burcyrilbur@gmail.com2016-09-23T06:18:13Zurn:sha1:65ca668f58a260e144621fd93a413da67635b999
Ensure the kernel correctly switches VSX registers correctly. VSX
registers are all volatile, and despite the kernel preserving VSX
across syscalls, it doesn't have to. Test that during interrupts and
timeslices ending the VSX regs remain the same.
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Test FPU and VMX regs in signal ucontext2016-03-02T12:34:47ZCyril Burcyrilbur@gmail.com2016-02-29T06:53:45Zurn: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 preemption2016-03-02T12:34:47ZCyril Burcyrilbur@gmail.com2016-02-29T06:53:44Zurn: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 syscall2016-03-02T12:34:46ZCyril Burcyrilbur@gmail.com2016-02-29T06:53:43Zurn: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>