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| author |   Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-10 11:16:48 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-07-12 08:44:57 +0200 |
| commit | 0c81c746f9bdbfaafe64322d540c8b7b59c27314 (patch) | |
| tree | 2f6a291a7b699b930e617909f3476dfafb5a38bb /arch/x86/kernel/genx2apic_uv_x.c | |
| parent | x64, x2apic/intr-remap: ioapic routines which deal with initial io-apic RTE setup (diff) | |
| download | linux-dev-0c81c746f9bdbfaafe64322d540c8b7b59c27314.tar.xz linux-dev-0c81c746f9bdbfaafe64322d540c8b7b59c27314.zip | |
x64, x2apic/intr-remap: introduce read_apic_id() to genapic routines
Move the read_apic_id() to genapic routines.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: akpm@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: andi@firstfloor.org
Cc: ebiederm@xmission.com
Cc: jbarnes@virtuousgeek.org
Cc: steiner@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/genx2apic_uv_x.c')
| -rw-r--r-- | arch/x86/kernel/genx2apic_uv_x.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 711f11c30b06..1ef99be18488 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -18,6 +18,7 @@ #include <linux/sched.h> #include <linux/bootmem.h> #include <linux/module.h> +#include <linux/hardirq.h> #include <asm/smp.h> #include <asm/ipi.h> #include <asm/genapic.h> @@ -134,9 +135,19 @@ static unsigned int uv_cpu_mask_to_apicid(cpumask_t cpumask) return BAD_APICID; } +static unsigned int uv_read_apic_id(void) +{ + unsigned int id; + + WARN_ON(preemptible() && num_online_cpus() > 1); + id = apic_read(APIC_ID) | __get_cpu_var(x2apic_extra_bits); + + return id; +} + static unsigned int phys_pkg_id(int index_msb) { - return GET_APIC_ID(read_apic_id()) >> index_msb; + return uv_read_apic_id() >> index_msb; } #ifdef ZZZ /* Needs x2apic patch */ @@ -159,6 +170,7 @@ struct genapic apic_x2apic_uv_x = { /* ZZZ.send_IPI_self = uv_send_IPI_self, */ .cpu_mask_to_apicid = uv_cpu_mask_to_apicid, .phys_pkg_id = phys_pkg_id, /* Fixme ZZZ */ + .read_apic_id = uv_read_apic_id, }; static __cpuinit void set_x2apic_extra_bits(int pnode) |