Michael Ellerman 1bdf22580b selftests/powerpc: Check all FPRs in fpu_syscall test ... There is a selftest that checks if FPRs are corrupted across a fork, aka clone. It was added as part of the series that optimised the clone path to save the parent's FP state without "giving up" (turning off FP). See commit 8792468da5 ("powerpc: Add the ability to save FPU without giving it up"). The test encodes the assumption that FPRs 0-13 are volatile across the syscall, by only checking the volatile FPRs are not changed by the fork. There was also a comment in the fpu_preempt test alluding to that: The check_fpu function in asm only checks the non volatile registers as it is reused from the syscall test It is true that the function call ABI treats f0-f13 as volatile, however the syscall ABI has since been documented as *not* treating those registers as volatile. See commit 7b8845a2a2 ("powerpc/64: Document the syscall ABI"). So change the test to check all FPRs are not corrupted by the syscall. Note that this currently fails, because save_fpu() etc. do not restore f0/vsr0. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231128132748.1990179-5-mpe@ellerman.id.au		2023-12-13 13:29:09 +11:00
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crypto/chacha20-s390
cxl	Merge branch 'for-6.7/cxl-rch-eh' into cxl/next	2023-10-31 10:59:00 -07:00
fault-injection
ktest
kunit	sound updates for 6.6-rc1	2023-08-30 13:45:05 -07:00
memblock	memblock tests: fix warning ‘struct seq_file’ declared inside parameter list	2023-09-14 10:51:28 +03:00
nvdimm	testing: nvdimm: make struct class structures constant	2023-10-11 09:04:28 -07:00
radix-tree	radix tree test suite: fix allocation calculation in kmem_cache_alloc_bulk()	2023-10-18 14:34:13 -07:00
scatterlist
selftests	selftests/powerpc: Check all FPRs in fpu_syscall test	2023-12-13 13:29:09 +11:00
vsock	test/vsock: add dobule bind connect test	2023-11-07 22:27:07 +00:00