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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-14 06:57:52 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-14 06:57:52 +0200
commit1622d35453132a1acd6d650175f9f45e4bcf553e (patch)
tree063a2dfa220452590d068418c2b16b90690dae5a /arch/powerpc/kernel/process.c
parentstaging: regulator: hi6421v600-regulator: Remove unused including <linux/vers... (diff)
parentLinux 5.9-rc5 (diff)
downloadlinux-1622d35453132a1acd6d650175f9f45e4bcf553e.tar.xz
linux-1622d35453132a1acd6d650175f9f45e4bcf553e.zip
Merge 5.9-rc5 into staging-next
We want the staging/iio changes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
-rw-r--r--arch/powerpc/kernel/process.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 016bd831908e..73a57043ee66 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -548,7 +548,7 @@ void notrace restore_math(struct pt_regs *regs)
* are live for the user thread).
*/
if ((!(msr & MSR_FP)) && should_restore_fp())
- new_msr |= MSR_FP | current->thread.fpexc_mode;
+ new_msr |= MSR_FP;
if ((!(msr & MSR_VEC)) && should_restore_altivec())
new_msr |= MSR_VEC;
@@ -559,11 +559,17 @@ void notrace restore_math(struct pt_regs *regs)
}
if (new_msr) {
+ unsigned long fpexc_mode = 0;
+
msr_check_and_set(new_msr);
- if (new_msr & MSR_FP)
+ if (new_msr & MSR_FP) {
do_restore_fp();
+ // This also covers VSX, because VSX implies FP
+ fpexc_mode = current->thread.fpexc_mode;
+ }
+
if (new_msr & MSR_VEC)
do_restore_altivec();
@@ -572,7 +578,7 @@ void notrace restore_math(struct pt_regs *regs)
msr_check_and_clear(new_msr);
- regs->msr |= new_msr;
+ regs->msr |= new_msr | fpexc_mode;
}
}
#endif