WSL2-Linux-Kernel/arch/powerpc
Milton Miller 199f45c45e powerpc/xics: Reduce and comment xics IPI use of memory barriers
A single full sync (mb()) is requrired to order the mmio to the qirr reg
with the set or clear of the message word.  However, test_and_clear_bit
has the effect of smp_mb() and we are not doing any other io from here,
so we don't need a mb per bit processed.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-13 16:24:19 +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 powerpc: Make ppc32 respect the boot cpu id for !CONFIG_SMP 2008-10-13 10:56:19 +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: Reduce and comment xics IPI use of memory barriers 2008-10-13 16:24:19 +11:00
sysdev powerpc: Remove old Makefile workaround for arch/ppc 2008-10-13 10:56:18 +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