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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accounting
arch	ARM:	2023-11-02 15:45:15 -10:00
bootconfig
bpf	bpftool: Extend net dump with netkit progs	2023-10-24 16:07:32 -07:00
build	perf tools fixes for v6.6: 2nd batch	2023-10-30 13:46:27 -07:00
certs
cgroup	iocost_monitor: improve it by adding iocg wait_ms	2023-08-08 15:43:03 -06:00
counter	tools/counter: Makefile: Replace rmdir by rm to avoid make,clean failure	2023-07-24 10:29:52 -04:00
crypto/ccp	crypto: ccp - Fix some unfused tests	2023-09-15 18:29:45 +08:00
debugging
edid
firewire
firmware
gpio
hv	hv/hv_kvp_daemon:Support for keyfile based connection profile	2023-10-10 03:42:29 +00:00
iio	tools: iio: iio_generic_buffer ensure alignment	2023-10-05 16:16:20 +01:00
include	perf tools changes for v6.7	2023-11-03 08:17:38 -10:00
kvm/kvm_stat
laptop
leds
lib	perf tools changes for v6.7	2023-11-03 08:17:38 -10:00
memory-model
mm	tools/mm: update the usage output to be more organized	2023-10-18 14:34:19 -07:00
net/ynl	nfsd: regenerate user space parsers after ynl-gen changes	2023-11-06 09:03:46 +00:00
objtool	* Refactor and clean up TDX hypercall/module call infrastructure	2023-11-01 10:28:32 -10:00
pci
pcmcia
perf	perf tools changes for v6.7	2023-11-03 08:17:38 -10:00
power	turbostat-2023.11.07	2023-11-18 09:09:17 -08:00
rcu
scripts	tools/build: Fix -s detection code in tools/scripts/Makefile.include	2023-10-18 15:29:47 -07:00
spi
testing	selftests/powerpc: Check all FPRs in fpu_syscall test	2023-12-13 13:29:09 +11:00
thermal	tools/thermal: Remove unused 'mds' and 'nrhandler' variables	2023-10-15 23:40:10 +02:00
time
tracing	rtla: Fix uninitialized variable found	2023-10-30 19:00:12 +01:00
usb
verification	verification/dot2k: Delete duplicate imports	2023-10-30 16:59:12 +01:00
virtio	tools/virtio: Add dma sync api for virtio test	2023-10-16 05:32:23 -04:00
wmi
workqueue	workqueue: Implement non-strict affinity scope for unbound workqueues	2023-08-07 15:57:25 -10:00
Makefile