d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[PPC64] Save FPU registers before enabling VSX

Browse Source 
Fixed trap handler logic, in order to make it save FPU registers,
if FPU is enabled, before enabling VSX. Without this change, FPU
register contents were being lost when set before VSX was enabled.
This commit is contained in:
Leandro Lupori 2019-08-12 12:51:47 +00:00
parent 4139761bb5
commit b501589d81
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/powerpc/powerpc/trap.c
View File

@ -295,7 +295,7 @@ trap(struct trapframe *frame)
("VSX already enabled for thread"));
if (!(td->td_pcb->pcb_flags & PCB_VEC))
enable_vec(td);
if (!(td->td_pcb->pcb_flags & PCB_FPU))
if (td->td_pcb->pcb_flags & PCB_FPU)
save_fpu(td);
td->td_pcb->pcb_flags |= PCB_VSX;
enable_fpu(td);