linux/tools/testing/selftests/powerpc/alignment/copy_unaligned.c, branch masterMirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=master2018-07-20T02:50:51Zselftests/powerpc: Remove Power9 copy_unaligned test2018-07-20T02:50:51ZMichael Ellermanmpe@ellerman.id.au2018-07-11T07:10:15Zurn:sha1:83039f22ba2f6aff935a2acbb6bf671374e8317d
This is a test of the ISA 3.0 "copy" instruction. That instruction has
an L field, which if set to 1 specifies that "the instruction
identifies the beginning of a move group" (pp 858). That's also
referred to as "copy first" vs "copy".
In ISA 3.0B the copy instruction does not have an L field, and the
corresponding bit in the instruction must be set to 1.
This test is generating a "copy" instruction, not a "copy first", and
so on Power9 (which implements 3.0B), this results in an illegal
instruction.
So just drop the test entirely. We still have copy_first_unaligned to
test the "copy first" behaviour.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Test unaligned copy and paste2016-07-05T13:49:51ZChris Smartchris@distroguy.com2016-06-16T23:34:47Zurn:sha1:4375088072295b09cc5d9bf7a8cd2333b608492a
Test that an ISA 3.0 compliant machine performing an unaligned copy,
copy_first, paste or paste_last is sent a SIGBUS.
Signed-off-by: Chris Smart <chris@distroguy.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>