d49c428840
... so it could fall back to normal numa and we'd reduce the impact of the NUMAQ subarch. NUMAQ depends on GENERICARCH also decouple genericarch numa from acpi. also make it fall back to bigsmp if apicid > 8. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
#ifndef __ASM_MACH_APIC_H
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#define __ASM_MACH_APIC_H
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#include <asm/io.h>
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#include <linux/mmzone.h>
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#include <linux/nodemask.h>
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#define APIC_DFR_VALUE (APIC_DFR_CLUSTER)
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static inline cpumask_t target_cpus(void)
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{
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return CPU_MASK_ALL;
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}
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#define TARGET_CPUS (target_cpus())
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#define NO_BALANCE_IRQ (1)
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#define esr_disable (1)
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#define INT_DELIVERY_MODE dest_LowestPrio
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#define INT_DEST_MODE 0 /* physical delivery on LOCAL quad */
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static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
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{
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return physid_isset(apicid, bitmap);
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}
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static inline unsigned long check_apicid_present(int bit)
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{
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return physid_isset(bit, phys_cpu_present_map);
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}
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#define apicid_cluster(apicid) (apicid & 0xF0)
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static inline int apic_id_registered(void)
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{
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return 1;
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}
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static inline void init_apic_ldr(void)
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{
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/* Already done in NUMA-Q firmware */
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}
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static inline void setup_apic_routing(void)
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{
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printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
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"NUMA-Q", nr_ioapics);
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}
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/*
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* Skip adding the timer int on secondary nodes, which causes
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* a small but painful rift in the time-space continuum.
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*/
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static inline int multi_timer_check(int apic, int irq)
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{
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return apic != 0 && irq == 0;
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}
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static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
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{
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/* We don't have a good way to do this yet - hack */
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return physids_promote(0xFUL);
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}
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/* Mapping from cpu number to logical apicid */
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extern u8 cpu_2_logical_apicid[];
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static inline int cpu_to_logical_apicid(int cpu)
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{
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if (cpu >= NR_CPUS)
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return BAD_APICID;
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return (int)cpu_2_logical_apicid[cpu];
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}
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/*
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* Supporting over 60 cpus on NUMA-Q requires a locality-dependent
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* cpu to APIC ID relation to properly interact with the intelligent
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* mode of the cluster controller.
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*/
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static inline int cpu_present_to_apicid(int mps_cpu)
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{
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if (mps_cpu < 60)
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return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
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else
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return BAD_APICID;
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}
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static inline int apicid_to_node(int logical_apicid)
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{
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return logical_apicid >> 4;
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}
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static inline physid_mask_t apicid_to_cpu_present(int logical_apicid)
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{
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int node = apicid_to_node(logical_apicid);
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int cpu = __ffs(logical_apicid & 0xf);
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return physid_mask_of_physid(cpu + 4*node);
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}
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extern void *xquad_portio;
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static inline void setup_portio_remap(void)
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{
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int num_quads = num_online_nodes();
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if (num_quads <= 1)
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return;
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printk("Remapping cross-quad port I/O for %d quads\n", num_quads);
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xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
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printk("xquad_portio vaddr 0x%08lx, len %08lx\n",
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(u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
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}
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static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
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{
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return (1);
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}
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static inline void enable_apic_mode(void)
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{
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}
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/*
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* We use physical apicids here, not logical, so just return the default
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* physical broadcast to stop people from breaking us
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*/
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static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
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{
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return (int) 0xF;
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}
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/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
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static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
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{
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return cpuid_apic >> index_msb;
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}
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#endif /* __ASM_MACH_APIC_H */
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