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linux/arch/powerpc
Milton Miller 302905a347 powerpc/xics: Update default_server during migrate_irqs_away
Currently, every time we determine which irq server to use, we check if
default_server, which is the id of the bootcpu, is still online.  But
default_server is a hardware cpu, not the logical cpu id needed to index
cpu_online_map.

Since the default server can only go offline during a cpu hotplug event,
explicitly check the default server and choose the new one when we move
irqs away from the cpu being offlined.

This has the added benefit of only needing the boot_cpuid to be updated
and not relying on the cpu being marked offline during migrate_irqs_away.

Also, since xics_update_irq_servers only reads device tree information, we
can call it before xics_init_host in xics_init_IRQ and then default_server
will always be valid when we can reach get_irq_server via the host ops.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-13 10:55:47 +11:00
..
boot powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
configs powerpc: Remove CHRP and PMAC support from FSL defconfigs 2008-10-07 14:26:20 +11:00
include/asm Merge commit 'jwb/jwb-next' 2008-10-07 11:15:07 +11:00
kernel powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
kvm KVM: ppc: fix invalidation of large guest pages 2008-07-27 12:02:05 +03:00
lib powerpc: New copy_4K_page() 2008-09-15 11:07:42 -07:00
math-emu powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
mm powerpc: Reserve in bootmem lmb reserved regions that cross NUMA nodes 2008-10-10 15:55:19 +11:00
oprofile powerpc/cell/oprofile: Fix test on overlay_tbl_offset in vma_map 2008-10-10 15:55:18 +11:00
platforms powerpc/xics: Update default_server during migrate_irqs_away 2008-10-13 10:55:47 +11:00
sysdev Merge commit 'jwb/jwb-next' 2008-10-07 11:15:07 +11:00
xmon Merge branch 'linux-2.6' 2008-06-30 10:16:50 +10:00
Kconfig powerpc: Enforce sane MAX_ORDER 2008-10-07 14:26:20 +11:00
Kconfig.debug powerpc: Split-out common MSI bitmap logic into msi_bitmap.c 2008-08-20 16:34:57 +10:00
Makefile powerpc: Enforce a non-spe kernel build even on broken compilers 2008-09-15 11:08:41 -07:00