Date: Sun, 9 Mar 2014 14:54:05 +0000 (UTC) From: Ian Lepore <ian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r262949 - head/sys/arm/arm Message-ID: <201403091454.s29Es5We000928@svn.freebsd.org>
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Author: ian Date: Sun Mar 9 14:54:05 2014 New Revision: 262949 URL: http://svnweb.freebsd.org/changeset/base/262949 Log: When a thread begins life it doesn't own the VFP hardware state on any cpu. Modified: head/sys/arm/arm/machdep.c head/sys/arm/arm/vm_machdep.c Modified: head/sys/arm/arm/machdep.c ============================================================================== --- head/sys/arm/arm/machdep.c Sun Mar 9 14:24:05 2014 (r262948) +++ head/sys/arm/arm/machdep.c Sun Mar 9 14:54:05 2014 (r262949) @@ -993,6 +993,7 @@ init_proc0(vm_offset_t kstack) thread0.td_pcb = (struct pcb *) (thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1; thread0.td_pcb->pcb_flags = 0; + thread0.td_pcb->pcb_vfpcpu = -1; thread0.td_frame = &proc0_tf; pcpup->pc_curpcb = thread0.td_pcb; } Modified: head/sys/arm/arm/vm_machdep.c ============================================================================== --- head/sys/arm/arm/vm_machdep.c Sun Mar 9 14:24:05 2014 (r262948) +++ head/sys/arm/arm/vm_machdep.c Sun Mar 9 14:54:05 2014 (r262949) @@ -146,6 +146,7 @@ cpu_fork(register struct thread *td1, re bcopy(&td1->td_proc->p_md, mdp2, sizeof(*mdp2)); pcb2->un_32.pcb32_sp = td2->td_kstack + USPACE_SVC_STACK_TOP - sizeof(*pcb2); + pcb2->pcb_vfpcpu = -1; pmap_activate(td2); td2->td_frame = tf = (struct trapframe *)STACKALIGN( pcb2->un_32.pcb32_sp - sizeof(struct trapframe));
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