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2007-05-08pasemi_mac: Move the IRQ mapping from the PCI layer to the driverOlof Johansson
Fixes for ethernet IRQ mapping, to be done in the driver instead of in the platform setup code. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-08[POWERPC] Abolish powerpc_flash_init()David Gibson
powerpc_flash_init() implements a broken way of probing for flash devices supported by the physmap_of driver. It finds all nodes in the device tree with device_type=="rom" and instantiates of_platform devices for them. This is fundamentally incompatible with the normal and correct way of probing for of_platform_bus_probe(). Platforms which relied on powerpc_flash_init()s behaviour (none are in-tree) will have to update their platform probing code to correctly probe busses containing flash devices. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Early serial debug support for PPC44xDavid Gibson
This adds support for early serial debugging via the built in port on IBM/AMCC PowerPC 44x CPUs. It uses a bolted TLB entry in address space 1 for the UART's mapping, allowing robust debugging both before and after the initialization of the MMU. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Support for the Ebony 440GP reference board in arch/powerpcDavid Gibson
This adds platform support code for the Ebony (440GP) evaluation board. This includes both code in arch/powerpc/platforms/44x for board initialization, and zImage wrapper code to correctly tweak the flattened device tree based on information from the firmware. The zImage supports both IBM OpenBIOS (aka "treeboot") and old versions of uboot which don't support a flattened device tree. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add device tree for EbonyDavid Gibson
Add a device tree for the Ebony evaluation board (440GP based). This tree is not complete or finalized. This tree needs a version of dtc recent enough to include reference-to-labels to process. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for nowDavid Gibson
This prepares for Ebony/440 support by creating an arch/powerpc/platforms/44x directory. It is populated with a single misc_44x.S file, into which is moved the 44x specific reset code from head_44x.S (on the grounds that we should really stop clogging up the head_* files with random asm helper routines). At the same time, we disable the (empty save Kconfig and Makefile) arch/powerpc/platforms/4xx directory from the arch/powerpc/platforms Makefile. Contrary to the comment in arch/powerpc/platforms/4xx/Makefile, attempting to build such an empty Makefile will fail, thus breaking compile for the 44x platforms we're about to add. It can go back in once we start porting some of the 40x platforms (and thus it becomes non-empty). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] MPIC U3/U4 MSI backendMichael Ellerman
MPIC U3/U4 MSI backend. Based on code from Segher, heavily hacked by me. This only deals with MSI on U3/U4 MPICs, aka. CPC 9x5. If we find a U3/U4 then we enable this backend, ie. take over the ppc_md MSI hooks. We might need more elaborate logic in future to decide which backend is enabled. We need our own irq_chip so that we can do MSI masking/unmasking on the device itself. We also need to mask explicitly on shutdown to make sure we don't get bitten by lazy-disable semantics. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] MPIC MSI allocatorMichael Ellerman
To support MSI on MPIC we need a way to reserve and allocate hardware irq numbers, this patch implements an allocator for that purpose. New firmware platforms must define a "msi-available-ranges" property on their MPIC node for MSI to work. For U3/U4 we do a best-guess setup. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Enable MSI mappings for MPICMichael Ellerman
On some Apple machines the HT MSI mappings are not enabled by firmware, so we need to do it by hand. We can't use the pci routines as this code runs too early. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Tell Phyp we support MSIMichael Ellerman
Tell Phyp we support MSI via the client architecture support mechanism. Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] RTAS MSI implementationMichael Ellerman
Implement MSI support via RTAS (RTAS = run-time firmware on pSeries machines). For now we assumes that if the required RTAS tokens for MSI are present, then we want to use the RTAS MSI routines. When RTAS is managing MSIs for us, it will/may enable MSI on devices that support it by default. This is contrary to the Linux model where a device is in LSI mode until the driver requests MSIs. To remedy this we add a pci_irq_fixup call, which disables MSI if they've been assigned by firmware and the device also supports LSI. Devices that don't support LSI at all will be left as is, drivers are still expected to call pci_enable_msi() before using the device. At the moment there is no pci_irq_fixup on pSeries, so we can just set it unconditionally. If other platforms use the RTAS MSI backend they'll need to check that still holds. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] PowerPC MSI infrastructureMichael Ellerman
This provides the architecture specific hooks to support MSI on powerpc. We implement the newly added arch_setup_msi_irqs() and arch_teardown_msi_irqs(), and then delegate to ppc_md routines. Platforms that don't implement MSI will leave the ppc_md calls blank, arch_msi_check_device() will detect this and return ENOSYS. Drivers should detect this error and continue to use LSI. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Rip out the existing powerpc msi stubsMichael Ellerman
Rip out the existing powerpc msi stubs. These were the start of an implementation based on ppc_md calls, but were never used in mainline. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Remove use of 4level-fixup.h for ppc32David Gibson
For 32-bit systems, powerpc still relies on the 4level-fixup.h hack, to pretend that the generic pagetable handling stuff is 3-levels rather than 4. This patch removes this, instead using the newer pgtable-nopmd.h to handle the elision of both the pud and pmd pagetable levels (ppc32 pagetables are actually 2 levels). This removes a little extraneous code, and makes it more easily compared to the 64-bit pagetable code. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add powerpc PCI-E reset API implementationBrian King
Adds the pSeries platform implementation for a new PCI API which can be used to issue various types of PCI-E reset, including PCI-E warm reset and PCI-E hot reset. This is needed for an ipr PCI-E adapter which does not properly implement BIST. Running BIST on this adapter results in PCI-E errors. The only reliable reset mechanism that exists on this hardware is PCI Fundamental reset (warm reset). Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08Merge branch 'linux-2.6'Paul Mackerras
2007-05-08[POWERPC] Holly bootwrapperJosh Boyer
Add Holly/Hickory bootwrapper Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Holly DTSJosh Boyer
Add Holly DTS file Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Holly defconfigJosh Boyer
Holly/Hickory defconfig Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add support for 750CL Holly boardJosh Boyer
Add PowerPC 750 Holly/Hickory platform support Signed-off-by: Stephen Winiecki <stevewin@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Generalize tsi108 PCI setupJosh Boyer
Generalize tsi108_setup_pci to take the config space physical address and primary bus designator as a parameter. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Generalize tsi108 PHY typesJosh Boyer
Add a phy_type field to the tsi108 ethernet structures to indicate which PHY is used on a board. This is derived from the "compatible" property in the ethernet-phy node of the device tree. The default remains the MV88E PHY. Also, convert the setup code to use of_get_mac_address instead of hard coding a lookup for the "address" property in the ethernet node. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add tsi108_pci.h for common PCI functionsJosh Boyer
Add a header file for the common PCI routines used for the TSI bridge Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Export pcibios_remove_pci_devicesLinas Vepstas
The pseries PCI hotplug code cannot build as a module, unless the pcibios_remove_pci_devices function is exported. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/pci_dlpar.c | 1 + 1 file changed, 1 insertion(+) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Add __init annotations to reserve_mem() and stabs_alloc()Michael Ellerman
reserve_mem() and stabs_alloc() are both called only from other __init routines, so can be marked __init. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-08[POWERPC] Cope with PCI host bridge I/O window not starting at 0Paul Mackerras
Currently our code to set up the data structures for a PCI host bridge and create the mapping for its I/O window assumes that the window starts at I/O port 0 on the PCI side. If this is not true, we can end up with I/O port numbers in the resources for PCI devices which will cause an oops if a driver tries to access them via inb/outb etc., because there is no mapping for the corresponding addresses. Normally the I/O window starts at 0, but there are some situations on partitioned machines with a hypervisor where the window may not start at 0. This fixes the problem by allocating space for the range from 0 to the end of the I/O window. That is, hose->io_base_virt contains the virtual address for I/O port 0 on the PCI bus, and thus the assumption that hose->io_base_virt - pci_io_base is the offset between the "global" I/O port numbers (those in the PCI device resources) and the I/O port numbers on the PCI bus is maintained. For PCI host bridges that are present at boot, we only map the portion of that range that correspond to the bridge's I/O window. For bridges added after boot we ioremap the range from 0 to the end of the I/O window, for now; in fact hot-added bridges should be using reserve_phb_iospace() and __ioremap_explicit (so they get sensible global port numbers), but we don't have the infrastructure yet to do that (basically a free_phb_iospace() routine plus appropriate locking). Interestingly, this makes the two arms of the if statement in get_bus_io_range do almost exactly the same thing; that function could now be simplified in a further patch. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07slab allocators: Remove SLAB_DEBUG_INITIAL flagChristoph Lameter
I have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by SLAB. I think its purpose was to have a callback after an object has been freed to verify that the state is the constructor state again? The callback is performed before each freeing of an object. I would think that it is much easier to check the object state manually before the free. That also places the check near the code object manipulation of the object. Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was compiled with SLAB debugging on. If there would be code in a constructor handling SLAB_DEBUG_INITIAL then it would have to be conditional on SLAB_DEBUG otherwise it would just be dead code. But there is no such code in the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real use of, difficult to understand and there are easier ways to accomplish the same effect (i.e. add debug code before kfree). There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be clear in fs inode caches. Remove the pointless checks (they would even be pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors. This is the last slab flag that SLUB did not support. Remove the check for unimplemented flags from SLUB. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07get_unmapped_area handles MAP_FIXED on powerpcBenjamin Herrenschmidt
The current get_unmapped_area code calls the f_ops->get_unmapped_area or the arch one (via the mm) only when MAP_FIXED is not passed. That makes it impossible for archs to impose proper constraints on regions of the virtual address space. To work around that, get_unmapped_area() then calls some hugetlbfs specific hacks. This cause several problems, among others: - It makes it impossible for a driver or filesystem to do the same thing that hugetlbfs does (for example, to allow a driver to use larger page sizes to map external hardware) if that requires applying a constraint on the addresses (constraining that mapping in certain regions and other mappings out of those regions). - Some archs like arm, mips, sparc, sparc64, sh and sh64 already want MAP_FIXED to be passed down in order to deal with aliasing issues. The code is there to handle it... but is never called. This series of patches moves the logic to handle MAP_FIXED down to the various arch/driver get_unmapped_area() implementations, and then changes the generic code to always call them. The hugetlbfs hacks then disappear from the generic code. Since I need to do some special 64K pages mappings for SPEs on cell, I need to work around the first problem at least. I have further patches thus implementing a "slices" layer that handles multiple page sizes through slices of the address space for use by hugetlbfs, the SPE code, and possibly others, but it requires that serie of patches first/ There is still a potential (but not practical) issue due to the fact that filesystems/drivers implemeting g_u_a will effectively bypass all arch checks. This is not an issue in practice as the only filesystems/drivers using that hook are doing so for arch specific purposes in the first place. There is also a problem with mremap that will completely bypass all arch checks. I'll try to address that separately, I'm not 100% certain yet how, possibly by making it not work when the vma has a file whose f_ops has a get_unmapped_area callback, and by making it use is_hugepage_only_range() before expanding into a new area. Also, I want to turn is_hugepage_only_range() into a more generic is_normal_page_range() as that's really what it will end up meaning when used in stack grow, brk grow and mremap. None of the above "issues" however are introduced by this patch, they are already there, so I think the patch can go ini for 2.6.22. This patch: Handle MAP_FIXED in powerpc's arch_get_unmapped_area() in all 3 implementations of it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: William Irwin <bill.irwin@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Matthew Wilcox <willy@debian.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Adam Litke <agl@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slab allocators: remove multiple alignment specificationsChristoph Lameter
It is not necessary to tell the slab allocators to align to a cacheline if an explicit alignment was already specified. It is rather confusing to specify multiple alignments. Make sure that the call sites only use one form of alignment. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slab allocators: Remove obsolete SLAB_MUST_HWCACHE_ALIGNChristoph Lameter
This patch was recently posted to lkml and acked by Pekka. The flag SLAB_MUST_HWCACHE_ALIGN is 1. Never checked by SLAB at all. 2. A duplicate of SLAB_HWCACHE_ALIGN for SLUB 3. Fulfills the role of SLAB_HWCACHE_ALIGN for SLOB. The only remaining use is in sparc64 and ppc64 and their use there reflects some earlier role that the slab flag once may have had. If its specified then SLAB_HWCACHE_ALIGN is also specified. The flag is confusing, inconsistent and has no purpose. Remove it. Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07PowerPC: Disable SLUB for configurations in which slab page structs are modifiedChristoph Lameter
PowerPC uses the slab allocator to manage the lowest level of the page table. In high cpu configurations we also use the page struct to split the page table lock. Disallow the selection of SLUB for that case. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07serial: define FIXED_PORT flag for serial_coreDavid Gibson
At present, the serial core always allows setserial in userspace to change the port address, irq and base clock of any serial port. That makes sense for legacy ISA ports, but not for (say) embedded ns16550 compatible serial ports at peculiar addresses. In these cases, the kernel code configuring the ports must know exactly where they are, and their clocking arrangements (which can be unusual on embedded boards). It doesn't make sense for userspace to change these settings. Therefore, this patch defines a UPF_FIXED_PORT flag for the uart_port structure. If this flag is set when the serial port is configured, any attempts to alter the port's type, io address, irq or base clock with setserial are ignored. In addition this patch uses the new flag for on-chip serial ports probed in arch/powerpc/kernel/legacy_serial.c, and for other hard-wired serial ports probed by drivers/serial/of_serial.c. Signed-off-by: David Gibson <dwg@au1.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07[POWERPC] mpc52xx suspend to deep-sleepDomen Puncer
Implement deep-sleep on MPC52xx. SDRAM is put into self-refresh with help of SRAM code (alternatives would be code in FLASH, I-cache). Interrupt code must also not be in SDRAM, so put it in I-cache. MPC52xx core is static, so contents will remain intact even with clocks turned off. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] Set efika's device_type to "soc"Domen Puncer
Device type should be "soc" (as in lite5200.dts), compatible is already set to "mpc5200". Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] lite5200(b) support for i2cDomen Puncer
Add fsl-i2c to mpc5200 i2c node in device tree, and enable FSL_SOC. Tested to work with built-in eeprom on lite5200b. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] lite5200(b) DTS fixesDomen Puncer
Three trivial DTS fixes: -Mark Lite5200(b) boards as "mpc5200" compatible. On efika the firmware already does that. -Fix mscan interrupt. -Fix wakeup GPIO address. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] Export of_device_get_modaliasSylvain Munaut
Apparently other parts of the kernel need to know the modalias internally (like the sysfs code in macintosh driver). To avoid consistency issues, we export this code and use it everywhere it's needed rather than repeat it ... Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] Fix some missing build dependencies in arch/powerpc/bootDavid Gibson
This patch fixes a couple of missing dependencies in arch/powerpc/boot/Makefile. First, it ensures that the zlib.h header is linked in before attempting to build gunzip_util.o, as it is, building gunzip_util.o usually works, but not always depending on make order. Second, it makes the final images which are built using a dts dependent on that dts, so the image will be correctly rebuilt if the dts changes. This in turn requires fixing the definition of the dts variable. CONFIG_DEVICE_TREE from Kconfig will have quotes around it, which don't matter when passing the variable to a shell, but which need to be removed when incorporating it into a filename for make's use. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] pasemi: Update ppc_proc_freq from cpufreq driverOlof Johansson
Update the global cpu speed variable according to current cpufreq speed, /proc/cpuinfo reports the actual speed. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] powermac: Suspend to disk on G5Johannes Berg
Powermac G5 suspend to disk implementation. The code is platform agnostic but only tested on powermac, no other 64-bit powerpc machines. Because nvidiafb still breaks suspend I have marked it EXPERIMENTAL on powermac and because I can't test it and some lowlevel code will need changes it is BROKEN on all other 64-bit platforms. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] DART iommu suspendJohannes Berg
This implements save and restore hooks for IOMMUs and implements it the DART iommu. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell
for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] powermac: Support G5 CPU hotplugJohannes Berg
This allows "hotplugging" of CPUs on G5 machines. CPUs that are disabled are put into an idle loop with the decrementer frequency set to minimum. To wake them up again we kick them just like when bringing them up. To stop those CPUs from messing with any global state we stop them from entering the timer interrupt. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] bootwrapper: Only build cuImage if CONFIG_DEVICE_TREE is non-emptyScott Wood
This allows the zImage target to once again be used to build all supported image types, rather than requiring an explicit "make uImage" to avoid failing to create an unneeded cuImage. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] Add smp_call_function_map and smp_call_function_singlewill schmidt
Add a new function named smp_call_function_single(). This matches a generic prototype from include/linux/smp.h. Add a function smp_call_function_map(). This is, for the most part, a rename of smp_call_function, with some added cpumask support. smp_call_function and smp_call_function_single call into smp_call_function_map. Lightly tested on 970mp (blade), power4 and power5. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> cc: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] Change topology_init() to a subsys_initcallKevin Corry
Change the powerpc version of topology_init() from an __initcall to a subsys_initcall to match all other architectures. Signed-off-by: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] MPIC sys_device & suspend/resumeJohannes Berg
This adds mpic to the system devices and implements suspend and resume for them. This is necessary to get interrupts for modules back to where they were before a suspend to disk. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-07[POWERPC] 64K page support for kexecLuke Browning
This fixes a couple of kexec problems related to 64K page support in the kernel. kexec issues a tlbie for each pte. The parameters for the tlbie are the page size and the virtual address. Support was missing for the computation of these two parameters for 64K pages. This adds that support. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-05Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits) [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall [PATCH] i386: type may be unused [PATCH] i386: Some additional chipset register values validation. [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split. [PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff [PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu [PATCH] i386: white space fixes in i387.h [PATCH] i386: Drop noisy e820 debugging printks [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c [PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems [PATCH] x86-64: Share identical video.S between i386 and x86-64 [PATCH] x86-64: Remove CONFIG_REORDER [PATCH] x86-64: Print type and size correctly for unknown compat ioctls [PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0) [PATCH] i386: Little cleanups in smpboot.c [PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible [PATCH] i386: Add X86_FEATURE_RDTSCP [PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386 [PATCH] i386: Implement alternative_io for i386 ... Fix up trivial conflict in include/linux/highmem.h manually. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: remove "struct subsystem" as it is no longer needed sysfs: printk format warning DOC: Fix wrong identifier name in Documentation/driver-model/devres.txt platform: reorder platform_device_del Driver core: fix show_uevent from taking up way too much stack