forked from Minki/linux
edb181ac4b
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_NUMAQ_APIC_H
|
|
#define __ASM_NUMAQ_APIC_H
|
|
|
|
#include <asm/io.h>
|
|
#include <linux/mmzone.h>
|
|
#include <linux/nodemask.h>
|
|
|
|
#define APIC_DFR_VALUE (APIC_DFR_CLUSTER)
|
|
|
|
static inline cpumask_t target_cpus(void)
|
|
{
|
|
return CPU_MASK_ALL;
|
|
}
|
|
|
|
#define TARGET_CPUS (target_cpus())
|
|
|
|
#define NO_BALANCE_IRQ (1)
|
|
#define esr_disable (1)
|
|
|
|
#define INT_DELIVERY_MODE dest_LowestPrio
|
|
#define INT_DEST_MODE 0 /* physical delivery on LOCAL quad */
|
|
|
|
static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
|
|
{
|
|
return physid_isset(apicid, bitmap);
|
|
}
|
|
static inline unsigned long check_apicid_present(int bit)
|
|
{
|
|
return physid_isset(bit, phys_cpu_present_map);
|
|
}
|
|
#define apicid_cluster(apicid) (apicid & 0xF0)
|
|
|
|
static inline int apic_id_registered(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static inline void init_apic_ldr(void)
|
|
{
|
|
/* Already done in NUMA-Q firmware */
|
|
}
|
|
|
|
static inline void 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 multi_timer_check(int apic, int irq)
|
|
{
|
|
return apic != 0 && irq == 0;
|
|
}
|
|
|
|
static inline physid_mask_t 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 cpu_to_logical_apicid(int cpu)
|
|
{
|
|
if (cpu >= NR_CPUS)
|
|
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 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 apicid_to_node(int logical_apicid)
|
|
{
|
|
return logical_apicid >> 4;
|
|
}
|
|
|
|
static inline physid_mask_t apicid_to_cpu_present(int logical_apicid)
|
|
{
|
|
int node = 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 void 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);
|
|
}
|
|
|
|
static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
|
|
{
|
|
return (1);
|
|
}
|
|
|
|
static inline void enable_apic_mode(void)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* We use physical apicids here, not logical, so just return the default
|
|
* physical broadcast to stop people from breaking us
|
|
*/
|
|
static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
|
|
{
|
|
return (int) 0xF;
|
|
}
|
|
|
|
/* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
|
|
static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
|
|
{
|
|
return cpuid_apic >> index_msb;
|
|
}
|
|
|
|
#endif /* __ASM_NUMAQ_APIC_H */
|