diff options
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 30 | ||||
| -rw-r--r-- | arch/powerpc/mm/numa.c | 24 |
3 files changed, 48 insertions, 7 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 5964371303a..8558b572e55 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -15,6 +15,7 @@ #include <linux/of_fdt.h> #include <linux/memblock.h> #include <linux/bootmem.h> +#include <linux/moduleparam.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/tlb.h> diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 16da595ff40..2dd6bdd31fe 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -34,6 +34,7 @@ #include <linux/suspend.h> #include <linux/memblock.h> #include <linux/hugetlb.h> +#include <linux/slab.h> #include <asm/pgalloc.h> #include <asm/prom.h> @@ -555,3 +556,32 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, book3e_hugetlb_preload(vma->vm_mm, address, *ptep); #endif } + +/* + * System memory should not be in /proc/iomem but various tools expect it + * (eg kdump). + */ +static int add_system_ram_resources(void) +{ + struct memblock_region *reg; + + for_each_memblock(memory, reg) { + struct resource *res; + unsigned long base = reg->base; + unsigned long size = reg->size; + + res = kzalloc(sizeof(struct resource), GFP_KERNEL); + WARN_ON(!res); + + if (res) { + res->name = "System RAM"; + res->start = base; + res->end = base + size - 1; + res->flags = IORESOURCE_MEM; + WARN_ON(request_resource(&iomem_resource, res) < 0); + } + } + + return 0; +} +subsys_initcall(add_system_ram_resources); diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index f2b03a86343..b088e985bee 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -315,7 +315,10 @@ static int __init find_min_common_depth(void) struct device_node *root; const char *vec5; - root = of_find_node_by_path("/rtas"); + if (firmware_has_feature(FW_FEATURE_OPAL)) + root = of_find_node_by_path("/ibm,opal"); + else + root = of_find_node_by_path("/rtas"); if (!root) root = of_find_node_by_path("/"); @@ -344,12 +347,19 @@ static int __init find_min_common_depth(void) #define VEC5_AFFINITY_BYTE 5 #define VEC5_AFFINITY 0x80 - chosen = of_find_node_by_path("/chosen"); - if (chosen) { - vec5 = of_get_property(chosen, "ibm,architecture-vec-5", NULL); - if (vec5 && (vec5[VEC5_AFFINITY_BYTE] & VEC5_AFFINITY)) { - dbg("Using form 1 affinity\n"); - form1_affinity = 1; + + if (firmware_has_feature(FW_FEATURE_OPAL)) + form1_affinity = 1; + else { + chosen = of_find_node_by_path("/chosen"); + if (chosen) { + vec5 = of_get_property(chosen, + "ibm,architecture-vec-5", NULL); + if (vec5 && (vec5[VEC5_AFFINITY_BYTE] & + VEC5_AFFINITY)) { + dbg("Using form 1 affinity\n"); + form1_affinity = 1; + } } } |