Kumar Gala 96ea3b4a70 powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address ... There is an issue on FSL-BookE 64-bit devices (P5020) in which PCIe devices that are capable of doing 64-bit DMAs (like an Intel e1000) do not function and crash the kernel if we have >4G of memory in the system. The reason is that the existing code only sets up one inbound window for access to system memory across PCIe. That window is limited to a 32-bit address space. So on systems we'll end up utilizing SWIOTLB for dma mappings. However SWIOTLB dma ops implement dma_alloc_coherent() as dma_direct_alloc_coherent(). Thus we can end up with dma addresses that are not accessible because of the inbound window limitation. We could possibly set the SWIOTLB alloc_coherent op to swiotlb_alloc_coherent() however that does not address the issue since the swiotlb_alloc_coherent() will behave almost identical to dma_direct_alloc_coherent() since the devices coherent_dma_mask will be greater than any address allocated by swiotlb_alloc_coherent() and thus we'll never bounce buffer it into a range that would be dma-able. The easiest and best solution is to just make it so that a 64-bit capable device is able to DMA to any internal system address. We accomplish this by opening up a second inbound window that maps all of memory above the internal SoC address width so we can set it up to access all of the internal SoC address space if needed. We than fixup the dma_ops and dma_offset for PCIe devices with a dma mask greater than the maximum internal SoC address. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>		2012-01-04 15:27:58 -06:00
..
bestcomm	powerpc: various straight conversions from module.h --> export.h	2011-10-31 19:30:44 -04:00
qe_lib	powerpc/qe: Fixup QE_General4 errata	2011-11-24 01:28:42 -06:00
xics	powerpc/xics: Reset the CPPR if H_EOI fails	2011-12-08 14:02:23 +11:00
6xx-suspend.S	[POWERPC] Add 6xx-style HID0_SLEEP support.	2008-05-16 23:22:28 +10:00
axonram.c	block: remove support for bio remapping from ->make_request	2011-09-12 12:12:01 +02:00
cpm1.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
cpm2_pic.c	powerpc/irq: Stop exporting irq_map	2011-05-04 15:02:15 +10:00
cpm2_pic.h	powerpc/cpm2: Checkpatch cleanup	2010-03-04 10:43:58 -06:00
cpm2.c	powerpc/fsl-cpm: Configure clock correctly for SCC	2010-04-19 23:13:03 -05:00
cpm_common.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
dart_iommu.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
dart.h	[POWERPC] Use 4kB iommu pages even on 64kB-page systems	2006-11-01 14:52:48 +11:00
dcr-low.S	powerpc/4xx: Extended DCR support v2	2008-12-21 14:21:15 +11:00
dcr.c	powerpc: add export.h to files making use of EXPORT_SYMBOL	2011-10-31 19:30:37 -04:00
ehv_pic.c	arch/powerpc/sysdev/ehv_pic.c: add missing kfree	2011-11-24 02:01:24 -06:00
fsl_85xx_cache_ctlr.h	powerpc/85xx: add cache-sram support	2010-10-14 00:54:38 -05:00
fsl_85xx_cache_sram.c	powerpc: Remove ioremap_flags	2011-05-19 14:30:43 +10:00
fsl_85xx_l2ctlr.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2011-03-18 06:31:43 -07:00
fsl_gtm.c	powerpc: add export.h to files making use of EXPORT_SYMBOL	2011-10-31 19:30:37 -04:00
fsl_lbc.c	powerpc/85xx: Add lbc suspend support for PM	2011-11-24 02:01:40 -06:00
fsl_msi.c	powerpc/fsl_msi: add support for the fsl, msi property in PCI nodes	2011-11-24 02:01:41 -06:00
fsl_msi.h	powerpc/fsl_msi: add support for the fsl, msi property in PCI nodes	2011-11-24 02:01:41 -06:00
fsl_pci.c	powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address	2012-01-04 15:27:58 -06:00
fsl_pci.h	powerpc/fsl_pci: Add support for FSL PCIe controllers v2.x	2011-03-15 09:29:56 -05:00
fsl_pmc.c	powerpc: add export.h to files making use of EXPORT_SYMBOL	2011-10-31 19:30:37 -04:00
fsl_rio.c	fsl-rio: Add two ports and rapidio message units support	2011-11-24 02:01:34 -06:00
fsl_rio.h	fsl-rio: Add two ports and rapidio message units support	2011-11-24 02:01:34 -06:00
fsl_rmu.c	fsl-rio: Add two ports and rapidio message units support	2011-11-24 02:01:34 -06:00
fsl_soc.c	powerpc: various straight conversions from module.h --> export.h	2011-10-31 19:30:44 -04:00
fsl_soc.h	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x into fbdev-next	2011-08-29 09:14:30 +00:00
grackle.c	powerpc: rename ppc_pci_*_flags to pci_*_flags	2011-07-12 09:28:04 -05:00
i8259.c	powerpc: Remove i8259 irq_host_ops->unmap	2011-05-19 15:31:41 +10:00
indirect_pci.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
ipic.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
ipic.h	[POWERPC] ipic: ack only for edge interrupts	2007-12-12 01:53:07 -06:00
Kconfig	powerpc/4xx: Adding PCIe MSI support	2011-05-26 15:00:37 +10:00
Makefile	fsl-rio: Split rio driver into two parts, RapidIO endpoint and message unit	2011-11-24 02:01:34 -06:00
micropatch.c	powerpc/cpm1: Mark micropatch code/data static and __init	2010-07-11 11:04:06 -05:00
mmio_nvram.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
mpc5xxx_clocks.c	powerpc: add export.h to files making use of EXPORT_SYMBOL	2011-10-31 19:30:37 -04:00
mpc8xx_pic.c	powerpc: remove non-required uses of include <linux/module.h>	2011-10-31 19:30:44 -04:00
mpc8xx_pic.h	[POWERPC] 8xx: mpc885ads pcmcia support	2007-07-10 00:33:51 -05:00
mpic_msi.c	powerpc: Fix MSI support on U4 bridge PCIe slot	2009-12-18 14:55:43 +11:00
mpic_pasemi_msi.c	powerpc: Convert to new irq_* function names	2011-03-29 14:48:12 +02:00
mpic_u3msi.c	powerpc: Convert to new irq_* function names	2011-03-29 14:48:12 +02:00
mpic.c	powerpc/mpic: Add in-core support for cascaded MPICs	2011-12-07 13:43:09 +11:00
mpic.h	powerpc: mpic irq_data conversion.	2011-03-10 11:03:56 +11:00
msi_bitmap.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
mv64x60_dev.c	powerpc/mv64x60: Suspected typo in assignment	2011-03-02 16:50:05 +11:00
mv64x60_pci.c	powerpc: Fix up implicit stat.h users	2011-10-31 19:30:39 -04:00
mv64x60_pic.c	powerpc/irq: Stop exporting irq_map	2011-05-04 15:02:15 +10:00
mv64x60_udbg.c	treewide: Convert uses of struct resource to resource_size(ptr)	2011-06-10 14:55:36 +02:00
mv64x60.h	[POWERPC] Add Marvell mv64x60 udbg putc/getc functions	2007-09-22 14:49:21 +10:00
of_rtc.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
pmi.c	powerpc: Fix up modules that should be including module.h	2011-10-31 19:30:38 -04:00
ppc4xx_cpm.c	powerpc/4xx: Add suspend and idle support	2010-11-29 10:05:06 -05:00
ppc4xx_gpio.c	of/gpio: add default of_xlate function if device has a node pointer	2010-07-05 16:14:30 -06:00
ppc4xx_msi.c	powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE	2011-10-31 19:30:38 -04:00
ppc4xx_pci.c	powerpc/476fpe: Add 476fpe SoC code	2011-12-09 07:51:02 -05:00
ppc4xx_pci.h	powerpc/476fpe: Add 476fpe SoC code	2011-12-09 07:51:02 -05:00
ppc4xx_soc.c	powerpc/irq: Remove IRQF_DISABLED	2011-11-08 14:51:46 +11:00
rtc_cmos_setup.c	powerpc: Fix up modules that should be including module.h	2011-10-31 19:30:38 -04:00
scom.c	powerpc: add export.h to files making use of EXPORT_SYMBOL	2011-10-31 19:30:37 -04:00
simple_gpio.c	powerpc: remove non-required uses of include <linux/module.h>	2011-10-31 19:30:44 -04:00
simple_gpio.h	powerpc: Implement GPIO driver for simple memory-mapped banks	2008-12-30 11:13:45 -06:00
tsi108_dev.c	powerpc: various straight conversions from module.h --> export.h	2011-10-31 19:30:44 -04:00
tsi108_pci.c	powerpc: Convert to new irq_* function names	2011-03-29 14:48:12 +02:00
uic.c	locking, powerpc: Annotate uic->lock as raw	2011-09-13 11:12:10 +02:00
xilinx_intc.c	powerpc/irq: Stop exporting irq_map	2011-05-04 15:02:15 +10:00
xilinx_pci.c	powerpc/virtex: Add support for Xilinx PCI host bridge	2009-06-06 10:14:22 -06:00