| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
These were missed when the respective tests were added, add them now.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220616070705.1941829-1-mpe@ellerman.id.au
|
|
Add a testcase that tries to trigger the FPU denormal exception on
Power8 or earlier CPUs.
Prior to commit 4557ac6b344b ("powerpc/64s/exception: Fix 0x1500
interrupt handler crash") this would trigger a crash such as:
Oops: Exception in kernel mode, sig: 5 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA PowerNV
Modules linked in: iptable_mangle xt_MASQUERADE iptable_nat nf_nat xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipt_REJECT nf_reject_ipv4 xt_tcpudp tun bridge stp llc ip6table_filter ip6_tables iptable_filter fuse kvm_hv binfmt_misc squashfs mlx4_ib ib_uverbs dm_multipath scsi_dh_rdac scsi_dh_alua ib_core mlx4_en sr_mod cdrom bnx2x lpfc mlx4_core crc_t10dif scsi_transport_fc sg mdio vmx_crypto crct10dif_vpmsum leds_powernv powernv_rng rng_core led_class powernv_op_panel sunrpc ip_tables x_tables autofs4
CPU: 159 PID: 6854 Comm: fpu_denormal Not tainted 5.8.0-rc2-gcc-8.2.0-00092-g4ec7aaab0828 #192
NIP: c0000000000100ec LR: c00000000001b85c CTR: 0000000000000000
REGS: c000001dd818f770 TRAP: 1500 Not tainted (5.8.0-rc2-gcc-8.2.0-00092-g4ec7aaab0828)
MSR: 900000000290b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 24002884 XER: 20000000
CFAR: c00000000001005c IRQMASK: 1
GPR00: c00000000001c4c8 c000001dd818fa00 c00000000171c200 c000001dd8101570
GPR04: 0000000000000000 c000001dd818fe90 c000001dd8101590 000000000000001d
GPR08: 0000000000000010 0000000000002000 c000001dd818fe90 fffffffffc48ac60
GPR12: 0000000000002200 c000001ffff4f480 0000000000000000 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 00007fffab225b40 0000000000000001 c000000001757168
GPR24: c000001dd8101570 c0000018027b00f0 c000001dd8101570 c000000001496098
GPR28: c00000000174ad05 c000001dd8100000 c000001dd8100000 c000001dd8100000
NIP save_fpu+0xa8/0x2ac
LR __giveup_fpu+0x2c/0xd0
Call Trace:
0xc000001dd818fa80 (unreliable)
giveup_all+0x118/0x120
__switch_to+0x124/0x6c0
__schedule+0x390/0xaf0
do_task_dead+0x70/0x80
do_exit+0x8fc/0xe10
do_group_exit+0x64/0xd0
sys_exit_group+0x24/0x30
system_call_exception+0x164/0x270
system_call_common+0xf0/0x278
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Split out of fix patch, add oops log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200708074942.1713396-1-npiggin@gmail.com
|
|
Add SPDX License Identifier to all .gitignore files.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Some of the recent new selftests were missing additions to .gitignore,
add them now.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
|
|
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>
|
|
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>
|
|
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>
|
Michael Ellerman
Nicholas Piggin
Masahiro Yamada
Cyril Bur