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Some preliminary ALTIVEC support.

This commit is contained in:
matt 2000-11-25 02:59:34 +00:00
parent 77b518b85d
commit 6b0877113f
1 changed files with 30 additions and 3 deletions
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33
sys/arch/powerpc/powerpc/vm_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: vm_machdep.c,v 1.21 2000/08/21 18:46:04 tsubai Exp $ */
/* $NetBSD: vm_machdep.c,v 1.22 2000/11/25 02:59:34 matt Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
@ -30,6 +30,7 @@
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "opt_altivec.h"
#include <sys/param.h>
#include <sys/core.h>
@ -87,6 +88,14 @@ cpu_fork(p1, p2, stack, stacksize, func, arg)
if (p1 == fpuproc)
save_fpu(p1);
*pcb = p1->p_addr->u_pcb;
#ifdef ALTIVEC
if (p1->p1_addr->u_pcb.pcb_vr != NULL) {
if (p1 == vecproc)
save_vec(p1);
pcb->pcb_vr = pool_get(vecpl, POOL_WAITOK);
*pcb->pcb_vr = *p1->p1_addr->u_ucb.pcb_vr;
}
#endif
pcb->pcb_pm = p2->p_vmspace->vm_map.pmap;
(void) pmap_extract(pmap_kernel(), (vaddr_t)pcb->pcb_pm,
@ -177,8 +186,17 @@ void
cpu_exit(p)
struct proc *p;
{
if (p == fpuproc) /* release the fpu */
fpuproc = 0;
#ifdef ALTIVEC
struct pcb *pcb = &p->p_addr->u_pcb;
#endif
if (p == fpuproc) /* release the FPU */
fpuproc = NULL;
#ifdef ALTIVEC
if (p == vecproc) /* release the AltiVEC */
vecproc = NULL;
if (pcb->pcb_vr != NULL)
pool_put(vecpl, pcb->pcb_vr);
#endif
splsched();
switchexit(p);
@ -214,6 +232,15 @@ cpu_coredump(p, vp, cred, chdr)
} else
bzero(&md_core.fpstate, sizeof(md_core.fpstate));
#ifdef ALTIVEC
if (pcb->pcb_flags & PCB_ALTIVEC) {
if (p == vecproc)
save_vec(p);
md_core.vstate = *pcb->pcb_vr;
} else
#endif
bzero(&md_core.vstate, sizeof(md_core.vstate));
CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
cseg.c_addr = 0;
cseg.c_size = chdr->c_cpusize;