diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-01-28 19:01:05 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-29 14:16:46 +0100 |
commit | 61b90b7ca10cc65d8b850ab542859dc593e5a381 (patch) | |
tree | 0d6d56b2810fa42165b4a97155e770cf49ce119f /arch/x86/mach-generic/numaq.c | |
parent | 2e096df8edefad78155bb406a5a86c182b17786e (diff) |
x86, NUMAQ: Consolidate code
Move all NUMAQ code into arch/x86/kernel/numaq.c.
With this it ceases to rely on any build-time subarch features.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mach-generic/numaq.c')
-rw-r--r-- | arch/x86/mach-generic/numaq.c | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/arch/x86/mach-generic/numaq.c b/arch/x86/mach-generic/numaq.c deleted file mode 100644 index c221cfb2c2d..00000000000 --- a/arch/x86/mach-generic/numaq.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - * APIC driver for the IBM NUMAQ chipset. - */ -#define APIC_DEFINITION 1 -#include <linux/threads.h> -#include <linux/cpumask.h> -#include <asm/mpspec.h> -#include <asm/genapic.h> -#include <asm/fixmap.h> -#include <asm/apicdef.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/numa.h> -#include <linux/smp.h> -#include <asm/numaq.h> -#include <asm/io.h> -#include <linux/mmzone.h> -#include <linux/nodemask.h> - -#define NUMAQ_APIC_DFR_VALUE (APIC_DFR_CLUSTER) - -static inline unsigned int numaq_get_apic_id(unsigned long x) -{ - return (x >> 24) & 0x0F; -} - -void default_send_IPI_mask_sequence(const struct cpumask *mask, int vector); -void default_send_IPI_mask_allbutself(const struct cpumask *mask, int vector); - -static inline void numaq_send_IPI_mask(const struct cpumask *mask, int vector) -{ - default_send_IPI_mask_sequence(mask, vector); -} - -static inline void numaq_send_IPI_allbutself(int vector) -{ - default_send_IPI_mask_allbutself(cpu_online_mask, vector); -} - -static inline void numaq_send_IPI_all(int vector) -{ - numaq_send_IPI_mask(cpu_online_mask, vector); -} - -extern void numaq_mps_oem_check(struct mpc_table *, char *, char *); - -#define NUMAQ_TRAMPOLINE_PHYS_LOW (0x8) -#define NUMAQ_TRAMPOLINE_PHYS_HIGH (0xa) - -/* - * Because we use NMIs rather than the INIT-STARTUP sequence to - * bootstrap the CPUs, the APIC may be in a weird state. Kick it: - */ -static inline void numaq_smp_callin_clear_local_apic(void) -{ - clear_local_APIC(); -} - -static inline void -numaq_store_NMI_vector(unsigned short *high, unsigned short *low) -{ - printk("Storing NMI vector\n"); - *high = - *((volatile unsigned short *)phys_to_virt(NUMAQ_TRAMPOLINE_PHYS_HIGH)); - *low = - *((volatile unsigned short *)phys_to_virt(NUMAQ_TRAMPOLINE_PHYS_LOW)); -} - -static inline const cpumask_t *numaq_target_cpus(void) -{ - return &CPU_MASK_ALL; -} - -static inline unsigned long -numaq_check_apicid_used(physid_mask_t bitmap, int apicid) -{ - return physid_isset(apicid, bitmap); -} - -static inline unsigned long numaq_check_apicid_present(int bit) -{ - return physid_isset(bit, phys_cpu_present_map); -} - -#define apicid_cluster(apicid) (apicid & 0xF0) - -static inline int numaq_apic_id_registered(void) -{ - return 1; -} - -static inline void numaq_init_apic_ldr(void) -{ - /* Already done in NUMA-Q firmware */ -} - -static inline void numaq_setup_apic_routing(void) -{ - printk("Enabling APIC mode: %s. Using %d I/O APICs\n", - "NUMA-Q", nr_ioapics); -} - -/* - * Skip adding the timer int on secondary nodes, which causes - * a small but painful rift in the time-space continuum. - */ -static inline int numaq_multi_timer_check(int apic, int irq) -{ - return apic != 0 && irq == 0; -} - -static inline physid_mask_t numaq_ioapic_phys_id_map(physid_mask_t phys_map) -{ - /* We don't have a good way to do this yet - hack */ - return physids_promote(0xFUL); -} - -/* Mapping from cpu number to logical apicid */ -extern u8 cpu_2_logical_apicid[]; - -static inline int numaq_cpu_to_logical_apicid(int cpu) -{ - if (cpu >= nr_cpu_ids) - return BAD_APICID; - return (int)cpu_2_logical_apicid[cpu]; -} - -/* - * Supporting over 60 cpus on NUMA-Q requires a locality-dependent - * cpu to APIC ID relation to properly interact with the intelligent - * mode of the cluster controller. - */ -static inline int numaq_cpu_present_to_apicid(int mps_cpu) -{ - if (mps_cpu < 60) - return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3)); - else - return BAD_APICID; -} - -static inline int numaq_apicid_to_node(int logical_apicid) -{ - return logical_apicid >> 4; -} - -static inline physid_mask_t numaq_apicid_to_cpu_present(int logical_apicid) -{ - int node = numaq_apicid_to_node(logical_apicid); - int cpu = __ffs(logical_apicid & 0xf); - - return physid_mask_of_physid(cpu + 4*node); -} - -extern void *xquad_portio; - -static inline int numaq_check_phys_apicid_present(int boot_cpu_physical_apicid) -{ - return 1; -} - -/* - * We use physical apicids here, not logical, so just return the default - * physical broadcast to stop people from breaking us - */ -static inline unsigned int numaq_cpu_mask_to_apicid(const cpumask_t *cpumask) -{ - return 0x0F; -} - -static inline unsigned int -numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask, - const struct cpumask *andmask) -{ - return 0x0F; -} - -/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */ -static inline int numaq_phys_pkg_id(int cpuid_apic, int index_msb) -{ - return cpuid_apic >> index_msb; -} -static int __numaq_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid) -{ - numaq_mps_oem_check(mpc, oem, productid); - return found_numaq; -} - -static int probe_numaq(void) -{ - /* already know from get_memcfg_numaq() */ - return found_numaq; -} - -static void numaq_vector_allocation_domain(int cpu, cpumask_t *retmask) -{ - /* Careful. Some cpus do not strictly honor the set of cpus - * specified in the interrupt destination when using lowest - * priority interrupt delivery mode. - * - * In particular there was a hyperthreading cpu observed to - * deliver interrupts to the wrong hyperthread when only one - * hyperthread was specified in the interrupt desitination. - */ - *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } }; -} - -static void numaq_setup_portio_remap(void) -{ - int num_quads = num_online_nodes(); - - if (num_quads <= 1) - return; - - printk("Remapping cross-quad port I/O for %d quads\n", num_quads); - xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD); - printk("xquad_portio vaddr 0x%08lx, len %08lx\n", - (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD); -} - -struct genapic apic_numaq = { - - .name = "NUMAQ", - .probe = probe_numaq, - .acpi_madt_oem_check = NULL, - .apic_id_registered = numaq_apic_id_registered, - - .irq_delivery_mode = dest_LowestPrio, - /* physical delivery on LOCAL quad: */ - .irq_dest_mode = 0, - - .target_cpus = numaq_target_cpus, - .disable_esr = 1, - .dest_logical = APIC_DEST_LOGICAL, - .check_apicid_used = numaq_check_apicid_used, - .check_apicid_present = numaq_check_apicid_present, - - .vector_allocation_domain = numaq_vector_allocation_domain, - .init_apic_ldr = numaq_init_apic_ldr, - - .ioapic_phys_id_map = numaq_ioapic_phys_id_map, - .setup_apic_routing = numaq_setup_apic_routing, - .multi_timer_check = numaq_multi_timer_check, - .apicid_to_node = numaq_apicid_to_node, - .cpu_to_logical_apicid = numaq_cpu_to_logical_apicid, - .cpu_present_to_apicid = numaq_cpu_present_to_apicid, - .apicid_to_cpu_present = numaq_apicid_to_cpu_present, - .setup_portio_remap = numaq_setup_portio_remap, - .check_phys_apicid_present = numaq_check_phys_apicid_present, - .enable_apic_mode = NULL, - .phys_pkg_id = numaq_phys_pkg_id, - .mps_oem_check = __numaq_mps_oem_check, - - .get_apic_id = numaq_get_apic_id, - .set_apic_id = NULL, - .apic_id_mask = 0x0F << 24, - - .cpu_mask_to_apicid = numaq_cpu_mask_to_apicid, - .cpu_mask_to_apicid_and = numaq_cpu_mask_to_apicid_and, - - .send_IPI_mask = numaq_send_IPI_mask, - .send_IPI_mask_allbutself = NULL, - .send_IPI_allbutself = numaq_send_IPI_allbutself, - .send_IPI_all = numaq_send_IPI_all, - .send_IPI_self = NULL, - - .wakeup_cpu = NULL, - .trampoline_phys_low = NUMAQ_TRAMPOLINE_PHYS_LOW, - .trampoline_phys_high = NUMAQ_TRAMPOLINE_PHYS_HIGH, - - /* We don't do anything here because we use NMI's to boot instead */ - .wait_for_init_deassert = NULL, - - .smp_callin_clear_local_apic = numaq_smp_callin_clear_local_apic, - .store_NMI_vector = numaq_store_NMI_vector, - .inquire_remote_apic = NULL, -}; |