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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 17:50:34 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 17:50:34 +0200
commitf536b3cae84eb7c9f3495285ad048d13a397ed0b (patch)
treeb53eee1c45eb080168786e2f103e76d6706cbbb0 /arch/powerpc/kernel/setup_64.c
parentMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus (diff)
parentpowerpc/eeh: Export eeh_iommu_group_to_pe() (diff)
downloadlinux-f536b3cae84eb7c9f3495285ad048d13a397ed0b.tar.xz
linux-f536b3cae84eb7c9f3495285ad048d13a397ed0b.zip
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt: "This is the powerpc new goodies for 3.17. The short story: The biggest bit is Michael removing all of pre-POWER4 processor support from the 64-bit kernel. POWER3 and rs64. This gets rid of a ton of old cruft that has been bitrotting in a long while. It was broken for quite a few versions already and nobody noticed. Nobody uses those machines anymore. While at it, he cleaned up a bunch of old dusty cabinets, getting rid of a skeletton or two. Then, we have some base VFIO support for KVM, which allows assigning of PCI devices to KVM guests, support for large 64-bit BARs on "powernv" platforms, support for HMI (Hardware Management Interrupts) on those same platforms, some sparse-vmemmap improvements (for memory hotplug), There is the usual batch of Freescale embedded updates (summary in the merge commit) and fixes here or there, I think that's it for the highlights" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (102 commits) powerpc/eeh: Export eeh_iommu_group_to_pe() powerpc/eeh: Add missing #ifdef CONFIG_IOMMU_API powerpc: Reduce scariness of interrupt frames in stack traces powerpc: start loop at section start of start in vmemmap_populated() powerpc: implement vmemmap_free() powerpc: implement vmemmap_remove_mapping() for BOOK3S powerpc: implement vmemmap_list_free() powerpc: Fail remap_4k_pfn() if PFN doesn't fit inside PTE powerpc/book3s: Fix endianess issue for HMI handling on napping cpus. powerpc/book3s: handle HMIs for cpus in nap mode. powerpc/powernv: Invoke opal call to handle hmi. powerpc/book3s: Add basic infrastructure to handle HMI in Linux. powerpc/iommu: Fix comments with it_page_shift powerpc/powernv: Handle compound PE in config accessors powerpc/powernv: Handle compound PE for EEH powerpc/powernv: Handle compound PE powerpc/powernv: Split ioda_eeh_get_state() powerpc/powernv: Allow to freeze PE powerpc/powernv: Enable M64 aperatus for PHB3 powerpc/eeh: Aux PE data for error log ...
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
-rw-r--r--arch/powerpc/kernel/setup_64.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index ee082d771178..d0225572faa1 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -201,7 +201,11 @@ static void cpu_ready_for_interrupts(void)
/* Set IR and DR in PACA MSR */
get_paca()->kernel_msr = MSR_KERNEL;
- /* Enable AIL if supported */
+ /*
+ * Enable AIL if supported, and we are in hypervisor mode. If we are
+ * not in hypervisor mode, we enable relocation-on interrupts later
+ * in pSeries_setup_arch() using the H_SET_MODE hcall.
+ */
if (cpu_has_feature(CPU_FTR_HVMODE) &&
cpu_has_feature(CPU_FTR_ARCH_207S)) {
unsigned long lpcr = mfspr(SPRN_LPCR);
@@ -507,7 +511,11 @@ void __init setup_system(void)
check_smt_enabled();
setup_tlb_core_data();
-#ifdef CONFIG_SMP
+ /*
+ * Freescale Book3e parts spin in a loop provided by firmware,
+ * so smp_release_cpus() does nothing for them
+ */
+#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_FSL_BOOK3E)
/* Release secondary cpus out of their spinloops at 0x60 now that
* we can map physical -> logical CPU ids
*/
@@ -673,9 +681,6 @@ void __init setup_arch(char **cmdline_p)
exc_lvl_early_init();
emergency_stack_init();
-#ifdef CONFIG_PPC_STD_MMU_64
- stabs_alloc();
-#endif
/* set up the bootmem stuff with available memory */
do_init_bootmem();
sparse_init();