diff options
| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-05-02 15:29:04 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-19 11:38:28 -0700 |
| commit | ab08ba324788b122edc3e983d7b7083fa20d6bc4 (patch) | |
| tree | 5f1eada4e55aef8511d047432083c6f2a5ce595f /drivers | |
| parent | f4d497e4106c3d8461bec4d8b99e740f8e52f7f6 (diff) | |
tile: support new Tilera hypervisor
commit c539914dcd9a68c63305e055b14115a6a19578a8 upstream.
The Tilera hypervisor shipped in releases up through MDE 4.1 launches
the client operating system (i.e. Linux) at privilege level 1 (PL1).
Starting with MDE 4.2, as part of the work to enable KVM, the
Tilera hypervisor launches Linux at PL2 instead.
This commit makes the KERNEL_PL option default to 2 for tilegx, while
still saying at 1 for tilepro, which doesn't have an updated hypervisor.
It also explains how and when you might want to choose another value.
In addition, we change a small buglet in the on-chip Ethernet driver,
where we were failing to use the KERNEL_PL constant in an API call.
To make the transition cleaner, this change also provides the updated
hv_init() API for the new hypervisor that supports announcing Linux's
compiled-in PL, so the hypervisor can generate a suitable error in the
case of a mismatched hypervisor and Linux binary.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/tile/tilegx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c index 66e025ad5df1..f3c2d034b32c 100644 --- a/drivers/net/ethernet/tile/tilegx.c +++ b/drivers/net/ethernet/tile/tilegx.c @@ -930,7 +930,7 @@ static int tile_net_setup_interrupts(struct net_device *dev) if (info->has_iqueue) { gxio_mpipe_request_notif_ring_interrupt( &context, cpu_x(cpu), cpu_y(cpu), - 1, ingress_irq, info->iqueue.ring); + KERNEL_PL, ingress_irq, info->iqueue.ring); } } |