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Anton Blanchard 859aefc5af powerpc: Increase NR_IRQS Kconfig maximum to 32768 
With dynamic irq descriptors the overhead of a large NR_IRQS is much lower
than it used to be. With more MSI-X capable adapters and drivers exploiting
multiple vectors we may as well allow the user to increase it beyond the
current maximum of 512.

32768 seems large enough that we'd never have to bump it again (although I bet
my prediction is horribly wrong). It boot tests OK and the vmlinux footprint
increase is only around 500kB due to:

struct irq_map_entry irq_map[NR_IRQS];

We format /proc/interrupts correctly with the previous changes:

             CPU0       CPU1       CPU2       CPU3       CPU4       CPU5
  286:          0          0          0          0          0          0
  516:          0          0          0          0          0          0
16689:       1833          0          0          0          0          0
17157:          0          0          0          0          0          0
17158:        319          0          0          0          0          0
25092:          0          0          0          0          0          0

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-02-03 17:39:50 +11:00
..
alpha alpha: cpumask_of_node() should handle -1 as a node 2010-01-14 13:21:35 -05:00
arm [ARM] Update mach-types 2010-01-28 22:17:45 +00:00
avr32 Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
blackfin blackfin,kgdb: Do not put PC in gdb_regs into retx. 2010-01-07 11:58:37 -06:00
cris Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
frv FDPIC: Respect PT_GNU_STACK exec protection markings when creating NOMMU stack 2010-01-06 18:16:02 -08:00
h8300 Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
ia64 [IA64] move fnptr definition inside #ifdef __KERNEL__ 2010-01-08 10:53:28 -08:00
m32r elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
m68k m68knommu: fix definitions of __pa() and __va() 2010-01-12 20:51:45 -08:00
m68knommu m68knommu: fix invalid flags on coldfire pit clocksource 2010-01-16 12:15:38 -08:00
microblaze microblaze: pci_controller->arch_data really is a struct device_node * 2010-01-18 16:36:07 +01:00
mips Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2010-02-02 12:45:33 -08:00
mn10300 mn10300: update the ASB2303 defconfig 2010-01-11 09:34:10 -08:00
parisc Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
powerpc powerpc: Increase NR_IRQS Kconfig maximum to 32768 2010-02-03 17:39:50 +11:00
s390 [S390] fix single stepped svcs with TRACE_IRQFLAGS=y 2010-01-27 10:12:49 +01:00
score mm: make totalhigh_pages unsigned long 2010-01-11 09:34:03 -08:00
sh sh: Fix access to released memory in clk_debugfs_register_one() 2010-02-02 11:32:23 +09:00
sparc sparc: TIF_ABI_PENDING bit removal 2010-01-29 08:22:01 -08:00
um Unrot uml mconsole a bit 2010-01-14 09:05:26 -05:00
x86 Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-01 10:45:00 -08:00
xtensa Merge branch 'for-33' of git://repo.or.cz/linux-kbuild 2009-12-17 07:23:42 -08:00
.gitignore
Kconfig hw-breakpoints: Fix hardware breakpoints -> perf events dependency 2009-12-18 13:11:51 +01:00