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authorDavid S. Miller <davem@davemloft.net>2015-03-20 18:51:09 -0400
committerDavid S. Miller <davem@davemloft.net>2015-03-20 18:51:09 -0400
commit0fa74a4be48e0f810d3dc6ddbc9d6ac7e86cbee8 (patch)
treeccfee93ede4e36d6d355e00e485d3d1c0fec0bdd /arch/x86/kernel/acpi/boot.c
parent6626af692692b52c8f9e20ad8201a3255e5ab25b (diff)
parent4de930efc23b92ddf88ce91c405ee645fe6e27ea (diff)
downloadblackbird-op-linux-0fa74a4be48e0f810d3dc6ddbc9d6ac7e86cbee8.tar.gz
blackbird-op-linux-0fa74a4be48e0f810d3dc6ddbc9d6ac7e86cbee8.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/emulex/benet/be_main.c net/core/sysctl_net_core.c net/ipv4/inet_diag.c The be_main.c conflict resolution was really tricky. The conflict hunks generated by GIT were very unhelpful, to say the least. It split functions in half and moved them around, when the real actual conflict only existed solely inside of one function, that being be_map_pci_bars(). So instead, to resolve this, I checked out be_main.c from the top of net-next, then I applied the be_main.c changes from 'net' since the last time I merged. And this worked beautifully. The inet_diag.c and sysctl_net_core.c conflicts were simple overlapping changes, and were easily to resolve. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/kernel/acpi/boot.c')
-rw-r--r--arch/x86/kernel/acpi/boot.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 3d525c6124f6..803b684676ff 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1338,6 +1338,26 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
}
/*
+ * ACPI offers an alternative platform interface model that removes
+ * ACPI hardware requirements for platforms that do not implement
+ * the PC Architecture.
+ *
+ * We initialize the Hardware-reduced ACPI model here:
+ */
+static void __init acpi_reduced_hw_init(void)
+{
+ if (acpi_gbl_reduced_hardware) {
+ /*
+ * Override x86_init functions and bypass legacy pic
+ * in Hardware-reduced ACPI mode
+ */
+ x86_init.timers.timer_init = x86_init_noop;
+ x86_init.irqs.pre_vector_init = x86_init_noop;
+ legacy_pic = &null_legacy_pic;
+ }
+}
+
+/*
* If your system is blacklisted here, but you find that acpi=force
* works for you, please contact linux-acpi@vger.kernel.org
*/
@@ -1536,6 +1556,11 @@ int __init early_acpi_boot_init(void)
*/
early_acpi_process_madt();
+ /*
+ * Hardware-reduced ACPI mode initialization:
+ */
+ acpi_reduced_hw_init();
+
return 0;
}
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