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2008-07-01powerpc: Allow create_branch() to return errorsMichael Ellerman
Currently create_branch() creates a branch instruction for you, and patches it into the call site. In some circumstances it would be nice to be able to create the instruction and patch it later, and also some code might want to check for errors in the branch creation before doing the patching. A future commit will change create_branch() to check for errors. For callers that don't care, replace create_branch() with patch_branch(), which just creates the branch and patches it directly. While we're touching all the callers, change to using unsigned int *, as this seems to match usage better. That allows (and requires) us to remove the volatile in the definition of vector in powermac/smp.c and mpc86xx_smp.c, that's correct because now that we're passing vector as an unsigned int * the compiler knows that it's value might change across the patch_branch() call. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-01powerpc: Move code patching code into arch/powerpc/lib/code-patching.cMichael Ellerman
We currently have a few routines for patching code in asm/system.h, because they didn't fit anywhere else. I'd like to clean them up a little and add some more, so first move them into a dedicated C file - they don't need to be inlined. While we're moving the code, drop create_function_call(), it's intended caller never got merged and will be replaced in future with something different. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-01powerpc: Only demote individual slices rather than whole processPaul Mackerras
At present, if we have a kernel with a 64kB page size, and some process maps something that has to be mapped with 4kB pages (such as a cache-inhibited mapping on POWER5+, or the eHCA infiniband queue-pair pages), we change the process to use 4kB pages everywhere. This hurts the performance of HPC programs that access eHCA from userspace. With this patch, the kernel will only demote the slice(s) containing the eHCA or cache-inhibited mappings, leaving the remaining slices able to use 64kB hardware pages. This also changes the slice_get_unmapped_area code so that it is willing to place a 64k-page mapping into (or across) a 4k-page slice if there is no better alternative, i.e. if the program specified MAP_FIXED or if there is not sufficient space available in slices that are either empty or already have 64k-page mappings in them. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-06-30powerpc/cell: Disable ptcal in case of crash kdumpArnd Bergmann
We need to disable ptcal before starting a new kernel after a crash, in order to avoid overwriting data in the kdump kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-30powerpc/pseries: Call pseries_kexec_setup only on pseriesArnd Bergmann
The pseries_kexec_setup function overwrites some ppc_md pointers, so make sure it only gets called when running on the right architecture. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-30spufs: Convert nopfn to faultNick Piggin
Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-30Merge branch 'linux-2.6'Paul Mackerras
2008-06-30Merge branch 'next' of ↵Paul Mackerras
master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx
2008-06-26powerpc/85xx: Update pin setup for 8560adsVitaly Bordug
Ports B and C pins programming is changed to get SCC2 UART and FCC3 ethernet work. Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-18powerpc/booke: Add support for new e500mc coreKumar Gala
The new e500mc core from Freescale is based on the e500v2 but with the following changes: * Supports only the Enhanced Debug Architecture (DSRR0/1, etc) * Floating Point * No SPE * Supports lwsync * Doorbell Exceptions * Hypervisor * Cache line size is now 64-bytes (e500v1/v2 have a 32-byte cache line) Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-16[POWERPC] Fix warning in pseries/eeh_driver.cAndrew Morton
Fix this: /usr/src/devel/arch/powerpc/platforms/pseries/eeh_driver.c: In function 'print_device_node_tree': /usr/src/devel/arch/powerpc/platforms/pseries/eeh_driver.c:55: warning: ISO C90 forbids mixed declarations and code also make that function look like it's part of Linux. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-16[POWERPC] Add missing of_node_put in pseries/nvram.cJulia Lawall
of_node_put is needed before discarding a value received from of_find_node_by_type, eg in error handling code. The semantic patch that makes the change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ struct device_node *n; struct device_node *n1; struct device_node *n2; statement S; identifier f1,f2; expression E1,E2; constant C; @@ n = of_find_node_by_type(...) ... if (!n) S ... when != of_node_put(n) when != n1 = f1(n,...) when != E1 = n when any when strict ( + of_node_put(n); return -C; | of_node_put(n); | n2 = f2(n,...) | E2 = n | return ...; ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-16Merge branch 'merge' of ↵Paul Mackerras
git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufs into merge
2008-06-16powerpc/spufs: fix missed stop-and-signal eventLuke Browning
There is a delay in the transition to the stopped state for class 2 interrupts. In some cases, the controlling thread detects the state of the spu as running, and goes back to sleep resulting in a hung application as the event is missed. This change detects the stop condition and re-generates the wakeup event after a context save. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-06-16powerpc/spufs: synchronize interaction between spu exception handling and ↵Luke Browning
time slicing Time slicing can occur at the same time as spu exception handling resulting in the wakeup of the wrong thread. This change uses the the spu's register_lock to enforce synchronization between bind/unbind and spu exception handling so that they are mutually exclusive. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-06-16powerpc/spufs: remove class_0_dsisr from spu exception handlingLuke Browning
According to the CBEA, the SPU dsisr is not updated for class 0 exceptions. spu_stopped() is testing the dsisr that was passed to it from the class 0 exception handler, so we return a false positive here. This patch cleans up the interrupt handler and erroneous tests in spu_stopped. It also removes the fields from the csa since it is not needed to process class 0 events. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-06-16powerpc/spufs: wait for stable spu status in spu_stopped()Luke Browning
If the spu is stopping (ie, the SPU_STATUS_RUNNING bit is still set), re-read the register to get the final stopped value. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-06-11powerpc/4xx: Sam440ep supportGiuseppe Coviello
The Sam440ep is an high customizable general purpose mini-itx board, based on the AMCC 440EP and with a LatticeXP FPGA onboard. It's poduced by ACube Systems Srl (Bassano del Grappa, Italy), http://www.acube-systems.biz. Signed-off-by: Giuseppe Coviello <gicoviello@gmail.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-06-11powerpc/4xx: Fix resource issue in warp-nand.cValentine Barshak
The "ndfc-chip" device doesn't need any resources. All resources are handled by the "ndfc-nand" device. Registering the same memory resource twice causes "cat /proc/iomem" to go into an infinite loop displaying NDFC memory addresses. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: Stefan Roese <sr@denx.de> Acked-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-06-10powerpc/83xx: new board support: MPC8360E-RDKAnton Vorontsov
This is patch adds board file, device tree, and defconfig for the new board, made by Freescale Semiconductor Inc. and Logic Product Development. Currently supported: 1. UEC{1,2,7,4}; 2. I2C; 3. SPI; 4. NS16550 serial; 5. PCI and miniPCI; 6. Intel NOR StrataFlash X16 64Mbit PC28F640P30T85; 7. Graphics controller, Fujitsu MB86277. Not supported in this patch: 1. StMICRO NAND512W3A2BN6E, 512 Mbit (supported with FSL UPM NAND driver); 2. FHCI USB (supported with FHCI driver). 3. QE Serial UCCs (tested to not work with ucc_uart driver, reason unknown, yet); 4. ADC AD7843 (tested to work, but support via device tree depends on major SPI rework, GPIO API, etc); Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10powerpc/85xx: add board support for the TQM8548 modulesWolfgang Grandegger
This patch adds support for the TQM8548 modules from TQ-Components GmbH (http://www.tqc.de). Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10powerpc/85xx: correct vendor prefix in DTS files for TQM85xx modulesWolfgang Grandegger
Like for the TQM5200, the vendor prefix "tqc," is now used for all TQM85xx modules from TQ-Components GmbH (http://www.tqc.de) in the corresponding DTS files. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-09[POWERPC] 85xx: MPC85xx MDS - Unconditionally select PHYLIB for board fixupsKumar Gala
The MPC85xx MDS board requires some board level tweaks of the PHYs that either the eTSEC (gianfar) or UCC ethernet controllers are connected to. Its possible to build the phylib as a module, however this breaks the board level fix ups because phy_read and phy_write are not available if we build as a module. So we unconditionally select PHYLIB to ensure its built into the kernel if we are building in MPC85xx MDS support. This was determined to be the easiest soultion even though it prevents the user from removing PHYLIB support if they decide they don't want it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-09powerpc: Fix irq_alloc_host() reference counting and callersMichael Ellerman
When I changed irq_alloc_host() to take an of_node (52964f87c64e6c6ea671b5bf3030fb1494090a48: "Add an optional device_node pointer to the irq_host"), I botched the reference counting semantics. Stephen pointed out that it's irq_alloc_host()'s business if it needs to take an additional reference to the device_node, the caller shouldn't need to care. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09powerpc: Rework Axon MSI setup so we can avoid freeing the irq_hostMichael Ellerman
If we do the call to irq_of_parse_and_map() first, then we don't need to worry about freeing the irq_host. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09powerpc: Add C2K to configurationRemi Machet
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 5 of 5: add the Kconfig entry for the C2K board. Signed-off-by: Remi Machet <rmachet@slac.stanford.edu> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09powerpc: C2K board driverRemi Machet
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 3 of 5: driver for the board. At this time it is very generic and similar to its original, the driver for the prpmc2800. Signed-off-by: Remi Machet <rmachet@slac.stanford.edu> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09Merge branch 'merge'Paul Mackerras
Conflicts: arch/powerpc/sysdev/fsl_soc.c
2008-06-04celleb_scc_pciex endianness misannotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-04mpc52xx_gpio iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-02[POWERPC] 83xx: Add support for Analogue & Micro ASP837E boardBryan O'Donoghue
The following adds support for the Analogue & Micro ASP 8347E, running Redboot. http://www.analogue-micro.com/ASP8347.html Signed-off-by: Bryan O'Donoghue <bodonoghue@codehermit.ie> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-02[POWERPC] 85xx: Enable MSI support for 85xxds boardJason Jin
This patch enabled MSI on 8544ds and 8572ds board. So far only one MSI interrupt can generate on 8544 board. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-02[POWERPC] 86xx: Enable MSI support for MPC8610HPCD boardJason Jin
This patch enable the MSI on 8610hpcd board. Through the msi-available-ranges property, All the 256 msi interrupts can be tested on this board. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-29[POWERPC] PIKA Warp: Update platform code to support Rev B boardsSean MacLennan
* Switched from 64M NOR/64M NAND to 4M NOR/256M NAND. * Full DTM support including critical temperature. * Added POST information. * Removed LED function, moved to new LED driver. * Moved ad7414 to new style I2C initialization. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-05-23Merge branch 'merge' into powerpc-nextPaul Mackerras
2008-05-23[POWERPC] PS3: Fix memory hotplugGeoff Levand
A change was made to walk_memory_resource() in commit 4b119e21d0c66c22e8ca03df05d9de623d0eb50f that added a check of find_lmb(). Add the coresponding lmb_add() call to ps3_mm_add_memory() so that that check will succeed. This fixes the condition where the PS3 boots up with only the 128 MiB of boot memory, and doesn't see the other 128MiB that is available. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-23[POWERPC] Add debugging trigger to Axon MSI codeMichael Ellerman
This adds some debugging code to the Axon MSI driver. It creates a file per MSIC in /sys/kernel/debug/powerpc, which allows the user to trigger a fake MSI interrupt by writing to the file. This can be used to test some of the MSI generation path. In particular, that the MSIC recognises a write to the MSI address, generates an interrupt and writes the MSI packet into the ring buffer. All the code is inside #ifdef DEBUG so it causes no harm unless it's enabled. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-18i2c: Switch pasemi to the new device/driver matching schemeJean Delvare
The old device/driver matching scheme is going away so stop using it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Olof Johansson <olof@lixom.net>
2008-05-16Merge branch 'linux-2.6' into powerpc-nextPaul Mackerras
2008-05-15[POWERPC] cell: Fix section mismatches in io-workarounds codeIshizaki Kou
Fix following warnings: WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0x9c): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.iowa_register_bus() WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0xa4): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.io_workaround_init() Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15[POWERPC] spufs: Fix compile errorFUJITA Tomonori
With CONFIG_VIRT_CPU_ACCOUNTING disabled, I got the following error: linux-2.6/arch/powerpc/platforms/cell/spufs/file.c: In function 'spu_switch_log_notify': linux-2.6/arch/powerpc/platforms/cell/spufs/file.c:2542: error: implicit declaration of function 'get_tb' make[4]: *** [arch/powerpc/platforms/cell/spufs/file.o] Error 1 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15[POWERPC] spufs: Fix pointer reference in find_victimLuke Browning
If victim (not ctx) is in spu_run, add victim to rq. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-14[POWERPC] Fix sparse warnings in arch/powerpc/platforms/pseriesMichael Ellerman
Don't return void in pseries/iommu.c Make mce_data_buf static in pseries/ras.c Make things static in pseries/rtasd.c Make things static in pseries/setup.c vtermno may as well be static in platforms/pseries/lpar.c Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-14[POWERPC] pseries/firmware.c should include pseries/pseries.hMichael Ellerman
The declaration for fw_feature_init() is in pseries.h and implemented in firmware.c, so the latter should include the former. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-14[POWERPC] Fix sparse warnings in arch/powerpc/kernelMichael Ellerman
Make a few things static in lparcfg.c Make init and exit routines static in rtas_flash.c Make things static in rtas_pci.c Make some functions static in rtas.c Make fops static in rtas-proc.c Remove unneeded extern for do_gtod in smp.c Make clocksource_init() static in time.c Make last_tick_len and ticklen_to_xs static in time.c Move the declaration of the pvr per-cpu into smp.h Make kexec_smp_down() and kexec_stack static in machine_kexec_64.c Don't return void in arch_teardown_msi_irqs() in msi.c Move declaration of GregorianDay()into asm/time.h Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-14[POWERPC] Move xmon_irq() declaration into xmon.hMichael Ellerman
The typdef for irqreturn_t was moved into its own header a while back, so there's no reason we can't move xmon_irq() into xmon.h now. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-13[POWERPC] 85xx: SBC8548 - Add flash support and HW Rev reportingJeremy McNicoll
The following adds local bus, flash and MTD partition nodes for sbc8548. As well, a compatible field for the soc node, so that of_platform_bus_probe() will pick it up. Something that is provided through this newly added epld node is the Hardware Revision which is now being utilized. Signed-off-by: Jeremy McNicoll <jeremy.mcnicoll@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13[POWERPC] 85xx: Fix some sparse warnings for 85xx MDSAndy Fleming
Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13[POWERPC] 86xx: mpc8610_hpcd: fix second serial portAnton Vorontsov
DIU platform code should not just write to the PIXIS' BRDCFG0 register, it should set and clear its own bits only, otherwise it will break firmware setup (in fact it breaks second uart). Also get rid of magic numbers in the related code. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-13[POWERPC] 86xx: mpc8610_hpcd: add support for NOR and NAND flashesAnton Vorontsov
This patch adds device tree nodes for NOR and NAND flashes and places board-control node inside the localbus. defconfig and board file updated appropriately. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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