kernel-fxtec-pro1x/arch/powerpc/platforms
Nishanth Aravamudan 25ebc45b93 powerpc/pseries/iommu: remove default window before attempting DDW manipulation
An upcoming release of firmware will add DDW extensions, in particular
an API to "reset" the DMA window to the original configuration (32-bit,
2GB in size). With that API available, we can safely remove the default
window, increasing the resources available to firmware for creation of
larger windows for the slot in question -- if we encounter an error, we
can use the new API to reset the state of the slot.

Further, this same release of firmware will make it a hard requirement
for OSes to release the existing window before any other windows will be
shown as available, to avoid conflicts in addressing between the two
windows.

In anticipation of these changes, always remove the default window
before we do any DDW manipulations.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-03 14:14:39 +10:00
..
8xx Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
40x Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00
44x powerpc/44x: Fix PCI MSI support for Maui APM821xx SoC and Bluestone board 2012-05-03 08:49:31 -04:00
52xx powerpc: Mark const init data with __initconst instead of __initdata 2012-04-02 14:00:03 +10:00
82xx Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
83xx Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
85xx powerpc/85xx: don't call of_platform_bus_probe() twice 2012-04-19 14:43:27 -05:00
86xx Merge remote-tracking branch 'kumar/next' into merge 2012-04-02 13:57:46 +10:00
512x irq_domain/powerpc: constify irq_domain_ops 2012-02-16 06:11:24 -07:00
amigaone pcspkr: Cleanup Kconfig dependencies 2011-06-09 15:01:41 +02:00
cell avoid iput() from flusher thread 2012-05-28 09:54:45 -07:00
chrp powerpc/mpic: Remove duplicate MPIC_WANTS_RESET flag 2012-02-23 10:50:00 +11:00
embedded6xx Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
maple Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
pasemi Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
powermac Merge branch 'merge' into next 2012-05-09 10:57:57 +10:00
powernv Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
prep powerpc: drop unused Kconfig symbols 2011-10-31 23:39:52 +01:00
ps3 powerpc/ps3: Minor Kconfig cleanup 2012-04-24 15:34:19 -07:00
pseries powerpc/pseries/iommu: remove default window before attempting DDW manipulation 2012-07-03 14:14:39 +10:00
wsp Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
fsl_uli1575.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
Kconfig powerpc: add support for MPIC message register API 2012-03-16 16:15:28 -05:00
Kconfig.cputype Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-05-23 09:02:42 -07:00
Makefile powerpc: Remove the main legacy iSerie platform code 2012-03-09 10:35:11 +11:00