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2007-12-20[POWERPC] iSeries: Fix unregistering HV event handlersStephen Rothwell
Commit fbd568a3e61a7decb8a754ad952aaa5b5c82e9e5 ("Change synchronize_kernel to _rcu and _sched") changed the deprecated synchronize_kernel() in HvLpEvent_unregisterHandler() to synchronize_rcu(). It turns out that it should have been synchronize_sched(). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-20Merge branch 'for-2.6.25' of ↵Paul Mackerras
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/cell-2.6 into for-2.6.25
2007-12-19[POWERPC] cell: catch errors from sysfs_create_group()Jeremy Kerr
We're currently getting a warning from not checking the result of sysfs_create_group, which is declared as __must_check. This change introduces appropriate error-handling for spu_add_sysdev_attr_group() Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: handle SPE kernel mappings that cross segment boundariesJeremy Kerr
Currently, we have a possibilty that the SLBs setup during context switch don't cover the entirety of the necessary lscsa and code regions, if these regions cross a segment boundary. This change checks the start and end of each region, and inserts a SLB entry for each, if unique. We also remove the assumption that the spu_save_code and spu_restore_code reside in the same segment, by using the specific code array for save and restore. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: add spu_64k_pages_available() checkJeremy Kerr
Add a function spu_64k_pages_available(), so that we can abstract the explicity use of mmu_psize_defs() in lssca_alloc.c Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: use spu_load_slb for SLB setupJeremy Kerr
Now that we have a helper function to setup a SPU SLB, use it for __spu_trap_data_seq. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: handle kernel SLB setup in spu_base.cJeremy Kerr
Currently, the SPU context switch code (spufs/switch.c) sets up the SPU's SLBs directly, which requires some low-level mm stuff. This change moves the kernel SLB setup to spu_base.c, by exposing a function spu_setup_kernel_slbs() to do this setup. This allows us to remove the low-level mm code from switch.c, making it possible to later move switch.c to the spufs module. Also, add a struct spu_slb for the cases where we need to deal with SLB entries. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: safer of_has_vicinity routineAndre Detsch
This patch changes the way we check for the existence of vicinity property in spe device nodes. The new implementation does not depend on having an initialized cbe_spu_info[0].spus, and checks for presence of vicinity in all nodes, not only in the first one. Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: export force_sig_info()Jeremy Kerr
Export force_sig_info to allow signals to be sent from a modular spufs. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: Convert #include of asm/of_{platform, device}.h into ↵Jon Loeliger
linux/of_{platform, device}.h. Signed-off-by: Jon Loeliger <jdl@freescale.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] cell: add missing '\n'Ishizaki Kou
Two printk() calls were missing the terminating '\n'. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19[POWERPC] perfmon2: make pm_interval register read/writeKevin Corry
The pm_interval register in the Cell PMU is read/write, but was implemented in the kernel as write-only. Previously, the written value was saved in a "shadow" copy so calls to cbe_read_pm() could return the value. Perfmon2 needs to be able to read the current values of pm_interval, so change cbe_read_pm() to read the actual register instead of the "shadow" copy. There is currently no code in the kernel that tries to read the pm_interval register with cbe_read_pm() (expecting to receive the "shadow" value), so this should not break any existing code. Signed-off-by: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-14[POWERPC] Make PS3_SYS_MANAGER default y, not mMichael Ellerman
Currently it's impossible to build a ps3_defconfig which will reboot without modules installed. This makes it all too easy to find yourself with a PS3 that won't reboot. This is because the system manager driver, which provides the reboot mechanism, is only selectable if PS3_ADVANCED is set, else it defaults to m. In ps3_defconfig PS3_ADVANCED is not set, therefore the system manager is built as a module. It would be desirable IMHO for the defconfig to produce a kernel that boots and reboots, without needing modules to be installed. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-14[POWERPC] 83xx: mpc8313erdb: Fix whitespace.Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-14[POWERPC] 83xx: mpc834x_mds: Fix whitespace and call of_platform_bus_probe().Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-14[POWERPC] iSeries: don't printk with HV spinlock heldStephen Rothwell
Printk was observed to hang during module unload due to a limited window of characters that may be sent to the hypervisor. The window only reexpands when we receive an ack from the HV and the spinlock here prevents us from ever processing that ack. This fixes it by dropping the lock before doing the printk, then looping back to the top to reacquire the lock. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-14[POWERPC] 8xx: Convert mpc866ads to the new device binding.Scott Wood
Verified on mpc866ads. This version has muram and brg nodes added to dts to get the things work. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-12-11[POWERPC] 83xx: Add platform support for MPC837x MDS boardLi Yang
The MPC837x MDS is a new member of Freescale MDS reference system. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11[POWERPC] 8xxx: Convert #include of asm/of_{platform, device}.h into ↵Jon Loeliger
linux/of_{platform, device}.h. Signed-off-by: Jon Loeliger <jdl@freescale.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11Merge branch 'linux-2.6' into for-2.6.25Paul Mackerras
2007-12-11[POWERPC] EEH: Avoid a possible NULL pointer dereferenceStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Merge vpdinfo.c into pci.cStephen Rothwell
There was only one global function in vpdinfo.c and it was only called from pci.c, so merge them and make the function static. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Clean up and simplify vdpinfo.cStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: DeCamelCase vpdinfo.cStephen Rothwell
This is a purely mechanical transformation. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] Use SLB size from the device treeMichael Neuling
Currently we hardwire the number of SLBs to 64, but PAPR says we should use the ibm,slb-size property to obtain the number of SLB entries. This uses this property instead of assuming 64. If no property is found, we assume 64 entries as before. This soft patches the SLB handler, so it shouldn't change performance at all. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] pci_controller->arch_data really is a struct device_node *Stephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] Don't special case pci_domain_nr() for iSeriesStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] Remove some iSeries platform checks from the PCI codeStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Call iSeries_pcibios_init from setup_archStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Make pcibios_final_fixup not depend on pci_dnStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Reduce dependence on pci_dn bussubnoStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: iseries_ds_addr is only used in pci.cStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Remove pci_dn dependency from iSeries_Device_InformationStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Remove one layer of IO routinesStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Consoldiate PCI IO error checkStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Unindent and clean iSeries_pci_final_fixupStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Remove some dead code from pci.cStephen Rothwell
and an unnecessary cast. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: DeCamelCase pci.cStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Cleanup PCI retry code a littleStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iSeries: Move find_Device_Node to avoid a forward declarationStephen Rothwell
Also remove another unnecessary forward declaration. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] pSeries: Remove dependency on pci_dn bussubnoStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] iommu_free_table doesn't need the device_nodeStephen Rothwell
It only needs the iommu_table address. It also makes use of the node name to print error messages. So just pass it the things it needs. This reduces the places that know about the pci_dn by one. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] celleb: Add support for native CBEIshizaki Kou
This adds support for native CBE on Celleb, that is, without the BEAT hypervisor. Many codes in platforms/cell/ are used in native CBE environment. Signed-off-by: Kou Ishizaki <Kou.Ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11[POWERPC] cell: Fix undefined reference to mmio_nvram_initIshizaki Kou
This fixes the following link error with CONFIG_PPC_CELL_NATIVE=y and CONFIG_PPC_CELL_BLADE=n: arch/powerpc/platforms/built-in.o: In function `.cell_setup_arch': setup.c:(.init.text+0xe80): undefined reference to `.mmio_nvram_init' Signed-off-by: Kou Ishizaki <Kou.Ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-10powerpc: Fix IDE legacy vs. native fixupsBenjamin Herrenschmidt
PowerMac and CHRP/BriQ platforms have quirks to switch some IDE controllers from legacy mode to fully native mode. Those quirks however will not work properly anymore due to a change to the generic code to better handle legacy IDE resources. This fixes it by moving those quirk to "early" quirks (so they run before resources are probed for the devices) and clearing all BARs after the conversion to force a reallocation of sane values. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-06[POWERPC] CELLEB: Fix possible NULL pointer dereferenceCyrill Gorcunov
This adds checking for NULL returned value from of_get_property to prevent possible NULL pointer dereference in the case when expected properties are not present. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-06[POWERPC] Clean out asm/of_{platform, device}.hJon Loeliger
Convert #include of asm/of_{platform, device}.h into linux/of_{platform,device}.h for a few scattered platforms. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-05Merge branch 'for-2.6.25' of ↵Paul Mackerras
git://git.kernel.org/pub/scm/linux/kernel/git/olof/pasemi into for-2.6.25
2007-12-04[POWERPC] pasemi: Fix module information for gpio-mdioOlof Johansson
Fix up the module information for gpio-mdio, it wouldn't load because of lacking license, and wouldn't auto-load because of missing MODULE_DEVICE_TABLE. Signed-off-by: Olof Johansson <olof@lixom.net>
2007-12-03[POWERPC] Add missing spaces in printk formatsjoe@perches.com
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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