diff options
| -rw-r--r-- | Documentation/kernel-parameters.txt | 2 | ||||
| -rw-r--r-- | arch/x86/Makefile | 6 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 14 | ||||
| -rw-r--r-- | arch/x86/mm/numa_32.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/srat_64.c | 6 |
5 files changed, 27 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 600cdd72900..90b3924071b 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1620,6 +1620,8 @@ and is between 256 and 4096 characters. It is defined in the file nowb [ARM] + nox2apic [X86-64,APIC] Do not enable x2APIC mode. + nptcg= [IA64] Override max number of concurrent global TLB purges which is reported from either PAL_VM_SUMMARY or SAL PALO. diff --git a/arch/x86/Makefile b/arch/x86/Makefile index f05d8c91d9e..8c86b72afdc 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -153,7 +153,7 @@ endif boot := arch/x86/boot -BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage install +BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage PHONY += bzImage $(BOOT_TARGETS) @@ -171,6 +171,10 @@ bzImage: vmlinux $(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) $@ +PHONY += install +install: + $(Q)$(MAKE) $(build)=$(boot) $@ + PHONY += vdso_install vdso_install: $(Q)$(MAKE) $(build)=arch/x86/vdso $@ diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index de1a50af807..d6712334ce4 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -19,6 +19,7 @@ #include <linux/timer.h> #include <linux/cpu.h> #include <linux/init.h> +#include <linux/io.h> #include <asm/uv/uv_mmrs.h> #include <asm/uv/uv_hub.h> @@ -34,6 +35,17 @@ DEFINE_PER_CPU(int, x2apic_extra_bits); static enum uv_system_type uv_system_type; +static int early_get_nodeid(void) +{ + union uvh_node_id_u node_id; + unsigned long *mmr; + + mmr = early_ioremap(UV_LOCAL_MMR_BASE | UVH_NODE_ID, sizeof(*mmr)); + node_id.v = *mmr; + early_iounmap(mmr, sizeof(*mmr)); + return node_id.s.node_id; +} + static int uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (!strcmp(oem_id, "SGI")) { @@ -42,6 +54,8 @@ static int uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) else if (!strcmp(oem_table_id, "UVX")) uv_system_type = UV_X2APIC; else if (!strcmp(oem_table_id, "UVH")) { + __get_cpu_var(x2apic_extra_bits) = + early_get_nodeid() << (UV_APIC_PNODE_SHIFT - 1); uv_system_type = UV_NON_UNIQUE_APIC; return 1; } diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c index 3daefa04ace..d2530062fe0 100644 --- a/arch/x86/mm/numa_32.c +++ b/arch/x86/mm/numa_32.c @@ -257,7 +257,7 @@ void resume_map_numa_kva(pgd_t *pgd_base) } #endif -static unsigned long calculate_numa_remap_pages(void) +static __init unsigned long calculate_numa_remap_pages(void) { int nid; unsigned long size, reserve_pages = 0; diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index c7d272b8574..33c5fa57e43 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -28,6 +28,7 @@ int acpi_numa __initdata; static struct acpi_table_slit *acpi_slit; static nodemask_t nodes_parsed __initdata; +static nodemask_t cpu_nodes_parsed __initdata; static struct bootnode nodes[MAX_NUMNODES] __initdata; static struct bootnode nodes_add[MAX_NUMNODES]; static int found_add_area __initdata; @@ -141,6 +142,7 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa) apic_id = pa->apic_id; apicid_to_node[apic_id] = node; + node_set(node, cpu_nodes_parsed); acpi_numa = 1; printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n", pxm, apic_id, node); @@ -174,6 +176,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) else apic_id = pa->apic_id; apicid_to_node[apic_id] = node; + node_set(node, cpu_nodes_parsed); acpi_numa = 1; printk(KERN_INFO "SRAT: PXM %u -> APIC %u -> Node %u\n", pxm, apic_id, node); @@ -402,7 +405,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end) return -1; } - node_possible_map = nodes_parsed; + /* Account for nodes with cpus and no memory */ + nodes_or(node_possible_map, nodes_parsed, cpu_nodes_parsed); /* Finally register nodes */ for_each_node_mask(i, node_possible_map) |