On Fri Aug 15, 2014 at 14:07:14 +0200, Christoffer Dall wrote:
> On Sun, Aug 03, 2014 at 10:53:46AM +0200, Adam Lackorzynski wrote:
> > Writes to SGIs for GICD_ICFGR register must be ignored.
> >
> > Signed-off-by: Adam Lackorzynski <[email protected]>
> > ---
> > hw/intc/arm_gic.c | 11 +++++++----
> > 1 file changed, 7 insertions(+), 4 deletions(-)
> >
> > diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c
> > index d2b1aaf..cd6e6ea 100644
> > --- a/hw/intc/arm_gic.c
> > +++ b/hw/intc/arm_gic.c
> > @@ -566,10 +566,13 @@ static void gic_dist_writeb(void *opaque, hwaddr
> > offset,
> > } else {
> > GIC_CLEAR_MODEL(irq + i);
> > }
> > - if (value & (2 << (i * 2))) {
> > - GIC_SET_EDGE_TRIGGER(irq + i);
> > - } else {
> > - GIC_CLEAR_EDGE_TRIGGER(irq + i);
> > + /* SGIs are WI */
>
> They're actually WI/RAO, so we should set them to edge-triggered
> somewhere or always return 1 for reads of these values as well as part
> of this fix.
SGIs are initialized to edge triggered in arm_gic_common_reset(), i.e.
this is already the case.
> > + if (irq >= 16) {
> > + if (value & (2 << (i * 2))) {
> > + GIC_SET_EDGE_TRIGGER(irq + i);
> > + } else {
> > + GIC_CLEAR_EDGE_TRIGGER(irq + i);
> > + }
> > }
> > }
> > } else if (offset < 0xf10) {
> > --
> > 2.0.1
> >
> >
Adam
--
Adam [email protected]
Lackorzynski http://os.inf.tu-dresden.de/~adam/
