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

Pull powerpc updates from Michael Ellerman:
 "Here's a first pull request for powerpc updates for 3.18.

  The bulk of the additions are for the "cxl" driver, for IBM's Coherent
  Accelerator Processor Interface (CAPI).  Most of it's in drivers/misc,
  which Greg & Arnd maintain, Greg said he was happy for us to take it
  through our tree.

  There's the usual minor cleanups and fixes, including a bit of noise
  in drivers from some of those.  A bunch of updates to our EEH code,
  which has been getting more testing.  Several nice speedups from
  Anton, including 20% in clear_page().

  And a bunch of updates for freescale from Scott"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits)
  cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking
  cxl: Add documentation for userspace APIs
  cxl: Add driver to Kbuild and Makefiles
  cxl: Add userspace header file
  cxl: Driver code for powernv PCIe based cards for userspace access
  cxl: Add base builtin support
  powerpc/mm: Add hooks for cxl
  powerpc/opal: Add PHB to cxl mode call
  powerpc/mm: Add new hash_page_mm()
  powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
  cxl: Add new header for call backs and structs
  powerpc/powernv: Split out set MSI IRQ chip code
  powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
  powerpc/msi: Improve IRQ bitmap allocator
  powerpc/cell: Make spu_flush_all_slbs() generic
  powerpc/cell: Move data segment faulting code out of cell platform
  powerpc/cell: Move spu_handle_mm_fault() out of cell platform
  powerpc/pseries: Use new defines when calling H_SET_MODE
  powerpc: Update contact info in Documentation files
  powerpc/perf/hv-24x7: Simplify catalog_read()
  ...

1 files changed, 10 insertions, 17 deletions

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index d7737a542fd7..649666d5d1c2 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -538,7 +538,7 @@ static int of_drconf_to_nid_single(struct of_drconf_cell *drmem,
  */
 static int numa_setup_cpu(unsigned long lcpu)
 {
-	int nid;
+	int nid = -1;
 	struct device_node *cpu;
 
 	/*
@@ -555,19 +555,21 @@ static int numa_setup_cpu(unsigned long lcpu)
 
 	if (!cpu) {
 		WARN_ON(1);
-		nid = 0;
-		goto out;
+		if (cpu_present(lcpu))
+			goto out_present;
+		else
+			goto out;
 	}
 
 	nid = of_node_to_nid_single(cpu);
 
+out_present:
 	if (nid < 0 || !node_online(nid))
 		nid = first_online_node;
-out:
-	map_cpu_to_node(lcpu, nid);
 
+	map_cpu_to_node(lcpu, nid);
 	of_node_put(cpu);
-
+out:
 	return nid;
 }
 
@@ -1127,20 +1129,11 @@ void __init do_init_bootmem(void)
 	 * even before we online them, so that we can use cpu_to_{node,mem}
 	 * early in boot, cf. smp_prepare_cpus().
 	 */
-	for_each_possible_cpu(cpu) {
-		cpu_numa_callback(&ppc64_numa_nb, CPU_UP_PREPARE,
-				  (void *)(unsigned long)cpu);
+	for_each_present_cpu(cpu) {
+		numa_setup_cpu((unsigned long)cpu);
 	}
 }
 
-void __init paging_init(void)
-{
-	unsigned long max_zone_pfns[MAX_NR_ZONES];
-	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-	max_zone_pfns[ZONE_DMA] = memblock_end_of_DRAM() >> PAGE_SHIFT;
-	free_area_init_nodes(max_zone_pfns);
-}
-
 static int __init early_numa(char *p)
 {
 	if (!p)