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* [POWERPC] Rename get_property to of_get_property: arch/powerpcStephen Rothwell2007-04-131-7/+7
| | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] arch/powerpc/kernel/vio.c of_node_put cleanupMariusz Kozlowski2007-01-241-4/+2
| | | | | | | Remove redundant argument check for of_node_put(). Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Refactor 64 bits DMA operationsBenjamin Herrenschmidt2006-12-041-73/+21
| | | | | | | | | | | | | | | | | This patch completely refactors DMA operations for 64 bits powerpc. 32 bits is untouched for now. We use the new dev_archdata structure to add the dma operations pointer and associated data to struct device. While at it, we also add the OF node pointer and numa node. In the future, we might want to look into merging that with pci_dn as well. The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced by a set of generic iommu and direct DMA ops (non PCI specific) that can be used by bus types. The toplevel implementation is now inline. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Use 4kB iommu pages even on 64kB-page systemsLinas Vepstas2006-11-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 10Gigabit ethernet device drivers appear to be able to chew up all 256MB of TCE mappings on pSeries systems, as evidenced by numerous error messages: iommu_alloc failed, tbl c0000000010d5c48 vaddr c0000000d875eff0 npages 1 Some experimentation indicates that this is essentially because one 1500 byte ethernet MTU gets mapped as a 64K DMA region when the large 64K pages are enabled. Thus, it doesn't take much to exhaust all of the available DMA mappings for a high-speed card. This patch changes the iommu allocator to work with its own unique, distinct page size. Although the patch is long, its actually quite simple: it just #defines a distinct IOMMU_PAGE_SIZE and then uses this in all the places that matter. As a side effect, it also dramatically improves network performance on platforms with H-calls on iommu translation inserts/removes (since we no longer call it 16 times for a 1500 bytes packet when the iommu HW is still 4k). In the future, we might want to make the IOMMU_PAGE_SIZE a variable in the iommu_table instance, thus allowing support for different HW page sizes in the iommu itself. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Constify & voidify get_property()Jeremy Kerr2006-07-311-8/+8
| | | | | | | | | | | Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc core changes. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add new interrupt mapping core and change platforms to use itBenjamin Herrenschmidt2006-07-031-11/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] node local IOMMU tablesAnton Blanchard2006-06-151-3/+3
| | | | | | | | Allocate IOMMU tables local to the relevant node. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: node-aware dma allocationsChristoph Hellwig2006-06-091-1/+1
| | | | | | | | | | | | Make sure dma_alloc_coherent allocates memory from the local node. This is important on Cell where we avoid going through the slow cpu interconnect. Note: I could only test this patch on Cell, it should be verified on some pseries machine by those that have the hardware. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: the iSeries vio lan driver changed device typeStephen Rothwell2006-05-191-1/+1
| | | | | | | So the IOMMU table building code needs to match. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: pseries: Use generic dma-window parsing functionJeremy Kerr2006-05-191-22/+14
| | | | | | | | | | | | | | Change the pseries iommu init code to use the new of_parse_dma_window() to parse the ibm,dma-window and ibm,my-dma-window properties of pci and virtual device nodes. Also, clean up vio_build_iommu_table() a little. Tested on pseries, with both vio and pci devices. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: merge the rest of the vio codeStephen Rothwell2006-04-291-34/+164
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: use a common vio_match_device routineStephen Rothwell2006-04-291-1/+2
| | | | | | | | This requires the compatible properties having vaules that are empty strings instead of just being empty properties. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: use the device tree for the iSeries vio bus probeStephen Rothwell2006-04-291-28/+143
| | | | | | | | As an added bonus, since every vio_dev now has a device_node associated with it, hotplug now works. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: IOMMU support for honoring dma_maskOlof Johansson2006-04-211-3/+3
| | | | | | | | Some devices don't support full 32-bit DMA address space, which we currently assume. Add the required mask-passing to the IOMMU allocators. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] Add vio_bus_type probe and remove methodsRussell King2006-01-131-4/+4
| | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] driver core: replace "hotplug" by "uevent"Kay Sievers2006-01-041-1/+1
| | | | | | | | | Leave the overloaded "hotplug" word to susbsystems which are handling real devices. The driver core does not "plug" anything, it just exports the state to userspace and generates events. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] ppc64: add MODALIAS= for vio busOlaf Hering2005-11-091-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | A non-broken udev would autoload also the drivers for devices on the pseries vio bus, like ibmveth, ibmvscsic and hvsc. This is similar to pci, usb and ieee1394: /lib/modules/`uname -r`/modules.alias alias vio:TvscsiSIBM,v-scsi* ibmvscsic alias vio:TnetworkSIBM,l-lan* ibmveth alias vio:Tserial-serverShvterm2* hvcs /events/debug.00004.pci.add.1394:MODALIAS='pci:v00001014d00000188sv00000000sd00000000bc06sc04i0f' /events/debug.00005.pci.add.1509:MODALIAS='pci:v00008086d00001229sv00001014sd000001FFbc02sc00i00' /events/debug.00026.vio.add.1519:MODALIAS='vio:TserialShvterm1' /events/debug.00027.vio.add.1446:MODALIAS='vio:TvscsiSIBM,v-scsi' /events/debug.00028.vio.add.1451:MODALIAS='vio:TnetworkSIBM,l-lan' modprobe -v vio:TnetworkSIBM,l-lan insmod /lib/modules/2.6.14-20051030_vio-ppc64/kernel/drivers/net/ibmveth.ko Signed-off-by: Olaf Hering <olh@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* powerpc: Add a shutdown member to vio_driverStephen Rothwell2005-10-241-0/+11
| | | | | | | | | | | Add a shutdown member to struct vio_driver. We also need vio_bus_shutdown() which converts from struct device to struct vio_dev and knows how to extract the struct vio_driver. Original patch adjusted for different location of vio.c. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* powerpc: don't duplicate name between vio_driver and device_driverStephen Rothwell2005-10-241-2/+1
| | | | | | | Just set the name field directly in the device_driver structure contained in the vio_driver struct. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* powerpc: Merge arch/ppc64/kernel/vio.c into arch/powerpc/kernel/vio.cStephen Rothwell2005-10-241-0/+261
Merge arch/ppc64/kernel/vio.c into arch/powerpc/kernel/vio.c, update the Makefiles to make it work, and make ARCH=ppc64 still work. Michael's version put vio.c in arch/powerpc/sysedv but after consolting Paulus, this one puts it in arch/powerpc/kernel. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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