xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse Source 
Pull x86 fixes from Peter Anvin:
 "Two very small changes: one fix for the vSMP Foundation platform, and
  one to help LLVM not choke on options it doesn't understand (although
  it probably should)"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vsmp: Fix irq routing
  x86: LLVMLinux: Wrap -mno-80387 with cc-option
This commit is contained in:
Linus Torvalds
2014-05-02 14:04:52 -07:00
parent e7e6d2a4a1 39025ba382
commit 0845e11c2a
2 changed files with 13 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
arch/x86/kernel/vsmp_64.c
View File

@@ -26,6 +26,9 @@
#define TOPOLOGY_REGISTER_OFFSET 0x10
/* Flag below is initialized once during vSMP PCI initialization. */
static int irq_routing_comply = 1;
#if defined CONFIG_PCI && defined CONFIG_PARAVIRT
/*
* Interrupt control on vSMPowered systems:
@@ -101,6 +104,10 @@ static void __init set_vsmp_pv_ops(void)
#ifdef CONFIG_SMP
if (cap & ctl & BIT(8)) {
ctl &= ~BIT(8);
/* Interrupt routing set to ignore */
irq_routing_comply = 0;
#ifdef CONFIG_PROC_FS
/* Don't let users change irq affinity via procfs */
no_irq_affinity = 1;
@@ -218,7 +225,9 @@ static void vsmp_apic_post_init(void)
{
/* need to update phys_pkg_id */
apic->phys_pkg_id = apicid_phys_pkg_id;
apic->vector_allocation_domain = fill_vector_allocation_domain;
if (!irq_routing_comply)
apic->vector_allocation_domain = fill_vector_allocation_domain;
}
void __init vsmp_init(void)