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linux/arch/powerpc/sysdev
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Benjamin Herrenschmidt eeac5c142b [POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruption 
It seems that the occasional data corruption observed with the tg3
driver wasn't due to missing barriers after all, but rather seems to
be due to the DART (= IOMMU) in the U4 northbridge reading stale
IOMMU table entries from memory due to a race.  This fixes it by
making the CPU read the entry back from memory before using it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13 22:12:52 +10:00
..
dart_iommu.c [POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruption 2006-09-13 22:12:52 +10:00
dart.h [POWERPC] U4 DART improvements 2006-06-29 16:22:46 +10:00
dcr.S [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
fsl_soc.c [POWERPC] Rewrite the PPC 86xx IRQ handling to use Flat Device Tree 2006-08-23 15:51:18 +10:00
fsl_soc.h [PATCH] powerpc: Add FSL SOC library and setup code 2006-01-14 11:13:22 +11:00
grackle.c powerpc: Pull out MPC106 (grackle) initialization code into its own file 2005-10-26 17:16:38 +10:00
i8259.c [PATCH] powerpc: fix trigger handling in the new irq code 2006-07-10 13:24:20 -07:00
indirect_pci.c powerpc: Use arch/powerpc/mm and arch/powerpc/lib for 64-bit 2005-10-10 22:25:26 +10:00
ipic.c [POWERPC] Adapt ipic driver to new host_ops interface, add set_irq_type to set IRQ sense 2006-08-30 10:34:33 +10:00
ipic.h [POWERPC] Adapt ipic driver to new host_ops interface, add set_irq_type to set IRQ sense 2006-08-30 10:34:33 +10:00
Makefile [POWERPC] back up old school ipic.[hc] to arch/ppc 2006-08-30 10:34:33 +10:00
mmio_nvram.c [PATCH] spin/rwlock init cleanups 2006-06-27 17:32:39 -07:00
mpic.c [POWERPC] Support for "weird" MPICs and fixup mpc7448_hpc2 2006-08-30 14:29:42 +10:00
todc.c [POWERPC] todc: add support for Time-Of-Day-Clock 2006-06-29 16:22:46 +10:00
tsi108_dev.c [POWERPC] Update mpc7448hpc2 board irq support using device tree 2006-08-23 15:51:18 +10:00
tsi108_pci.c [POWERPC] Update mpc7448hpc2 board irq support using device tree 2006-08-23 15:51:18 +10:00