| Message ID | 20210124025306.3949-4-leif@nuviainc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | hw/intc: enable GICv4 memory layout for GICv3 driver | expand |
On Sun, 24 Jan 2021 at 02:53, Leif Lindholm <leif@nuviainc.com> wrote: > > The VLPI frames are what make the redistributor size change, so ensure > we state in GICD_TYPER that we have them. > > Signed-off-by: Leif Lindholm <leif@nuviainc.com> > --- > hw/intc/arm_gicv3_dist.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/hw/intc/arm_gicv3_dist.c b/hw/intc/arm_gicv3_dist.c > index b65f56f903..833deb0a74 100644 > --- a/hw/intc/arm_gicv3_dist.c > +++ b/hw/intc/arm_gicv3_dist.c > @@ -387,6 +387,9 @@ static MemTxResult gicd_readl(GICv3State *s, hwaddr offset, > > *data = (1 << 25) | (1 << 24) | (sec_extn << 10) | > (0xf << 19) | itlinesnumber; > + if (s->revision == 4) { > + *data |= (1 << 18);; > + } Double semicolon. > return MEMTX_OK; > } > case GICD_IIDR: I think I'd prefer not to take this patch in mainline for the moment: it would be "safe", in the sense that it doesn't affect anything, but it's not the only thing in this register that changes for GIC versions > 3, and it would make a lot more sense to go in as part of the general support for the feature the bit is advertising. thanks -- PMM
diff --git a/hw/intc/arm_gicv3_dist.c b/hw/intc/arm_gicv3_dist.c index b65f56f903..833deb0a74 100644 --- a/hw/intc/arm_gicv3_dist.c +++ b/hw/intc/arm_gicv3_dist.c @@ -387,6 +387,9 @@ static MemTxResult gicd_readl(GICv3State *s, hwaddr offset, *data = (1 << 25) | (1 << 24) | (sec_extn << 10) | (0xf << 19) | itlinesnumber; + if (s->revision == 4) { + *data |= (1 << 18);; + } return MEMTX_OK; } case GICD_IIDR:
The VLPI frames are what make the redistributor size change, so ensure we state in GICD_TYPER that we have them. Signed-off-by: Leif Lindholm <leif@nuviainc.com> --- hw/intc/arm_gicv3_dist.c | 3 +++ 1 file changed, 3 insertions(+)