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* powerpc: use non-racy method for proc entries creationDenis V. Lunev2008-04-299-42/+17
| | | | | | | | | | | | | | | Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* celleb_scc_pciex __iomem annotationsAl Viro2008-04-281-9/+9
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* powerpc: Add DIU platform code for MPC8610HPCDYork Sun2008-04-281-9/+181
| | | | | | | | | | | | | Add platform code to support Freescale DIU. The platform code includes framebuffer memory allocation, pixel format, monitor port, etc. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Timur Tabi <timur@freescale.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [POWERPC] celleb: Add support for PCI ExpressIshizaki Kou2008-04-245-0/+639
| | | | | | | | | | This adds support for PCI Express port on Celleb. I/O space of this PCI Express port is not mapped in memory space. So we use the io-workaround mechanism to make accesses indirect. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Move miscellaneous files for BeatIshizaki Kou2008-04-2410-15/+11
| | | | | | | | | | This moves miscellaneous files for Beat into platforms/cell/. All files in this patch are used by celleb-beat only. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Move a file for SPU on BeatIshizaki Kou2008-04-243-2/+2
| | | | | | | | | This moves SPU support code on Beat into platforms/cell/. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Move files for Beat mmu and iommuIshizaki Kou2008-04-244-5/+6
| | | | | | | | | | This moves files for mmu and iommu on Beat into platforms/cell/. All files in this patch are used by celleb-beat only. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Move files for Beat hvcall interfacesIshizaki Kou2008-04-2411-8/+9
| | | | | | | | | | This moves files for Beat hvcall interfaces into platforms/cell/. All files in this patch are used by celleb-beat only. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Move the SCC related code for cellebIshizaki Kou2008-04-246-17/+12
| | | | | | | | | | | | This moves the SCC (Super Companion Chip) related code for celleb into platforms/cell/. All files in this patch are used by celleb-beat and celleb-native commonly. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Move the files for celleb base supportIshizaki Kou2008-04-249-29/+29
| | | | | | | | | | This moves the base code for celleb support into platforms/cell/. All files in this patch are used by celleb-beat and celleb-native commonly. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] celleb: Consolidate io-workarounds codeIshizaki Kou2008-04-247-357/+52
| | | | | | | | | | | Now, we can use generic io-workarounds mechanism and the workaround code for spider-pci. This changes Celleb PCI code to use spider-pci code. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] cell: Generalize io-workarounds codeIshizaki Kou2008-04-245-261/+376
| | | | | | | | | | This splits cell io-workaround code into spider-pci dependent code and a generic part, and also moves io-workarounds initialization into cell_setup_phb. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add CONFIG_PPC_PSERIES_DEBUG to enable debugging for platforms/pseriesMichael Ellerman2008-04-249-10/+10
| | | | | | | | | | | | | | | | | | | Add a DEBUG config setting which turns on all (most) of the debugging under platforms/pseries. To have this take effect we need to remove all the #undef DEBUG's, in various files. We leave the #undef DEBUG in platforms/pseries/lpar.c, as this enables debugging printks from the low-level hash table routines, and tends to make your system unusable. If you want those enabled you still have to turn them on by hand. Also some of the RAS code has a DEBUG block which causes a functional change, so I've keyed this off a different (non-existant) debug #define. This is only enabled if you have PPC_EARLY_DEBUG enabled also. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Convert from DBG() to pr_debug() in platforms/pseries/Michael Ellerman2008-04-247-88/+56
| | | | | | | | | | | | | | | In pseries/lpar.c, fix some printf specifier mismatches, and add a newline to one printk. In pseries/rtasd.c add "rtasd" to some messages to make it clear where they're coming from. In pseries/scanlog.c remove the hand-rolled runtime debugging support in there. This file has been largely unchanged for eons, if we need to debug it in future we can recompile. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Register udbg console early on pseries LPARMichael Ellerman2008-04-241-0/+2
| | | | | | | | | | | | | | On pseries LPAR we can call the udbg routines, and the udbg console very early. So mark the udbg console as safe to call early in boot, and register the udbg console as soon as the udbg routines are hooked up. This allows platforms/pseries code to use printk() and pr_debug() rather than needing to call udbg_printf() directly for early debugging. This is nice because a) it's standard, b) it goes via the printk buffer, and c) you can get printk time stamps. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Raise the upper limit of NR_CPUS and move the pacas into the BSSTony Breeds2008-04-241-2/+2
| | | | | | | | | | | | | | This adds the required functionality to fill in all pacas at runtime. With NR_CPUS=1024 text data bss dec hex filename 137 1704032 0 1704169 1a00e9 arch/powerpc/kernel/paca.o :Before 121 1179744 524288 1704153 1a00d9 arch/powerpc/kernel/paca.o :After Also remove unneeded #includes from arch/powerpc/kernel/paca.c Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Make iSeries spin on __secondary_hold_spinloop, like pSeriesTony Breeds2008-04-241-1/+26
| | | | | | | | | | | | | | Currently all iSeries secondary CPUs spin directly on the cpu_start field in their paca. Make them spin on the global __secondary_hold_spinloop until after the pacas have been initialised. As Stephen Rothwell points out, this works at the moment because __secondary_hold_spinloop is being set already, but iSeries isn't looking at it :) Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Use of_get_next_parent() in platforms/cell/axon_msi.cMichael Ellerman2008-04-241-3/+3
| | | | | | | Replace two open-coded occurences of the of_get_next_parent() logic. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add include of linux/of.h to os-area.cMichael Ellerman2008-04-241-0/+1
| | | | | | | os-area.c requires routines declared in linux/of.h, so should include it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2008-04-211-5/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (42 commits) PCI: Change PCI subsystem MAINTAINER PCI: pci-iommu-iotlb-flushing-speedup PCI: pci_setup_bridge() mustn't be __devinit PCI: pci_bus_size_cardbus() mustn't be __devinit PCI: pci_scan_device() mustn't be __devinit PCI: pci_alloc_child_bus() mustn't be __devinit PCI: replace remaining __FUNCTION__ occurrences PCI: Hotplug: fakephp: Return success, not ENODEV, when bus rescan is triggered PCI: Hotplug: Fix leaks in IBM Hot Plug Controller Driver - ibmphp_init_devno() PCI: clean up resource alignment management PCI: aerdrv_acpi.c: remove unneeded NULL check PCI: Update VIA CX700 quirk PCI: Expose PCI VPD through sysfs PCI: iommu: iotlb flushing PCI: simplify quirk debug output PCI: iova RB tree setup tweak PCI: parisc: use generic pci_enable_resources() PCI: ppc: use generic pci_enable_resources() PCI: powerpc: use generic pci_enable_resources() PCI: ia64: use generic pci_enable_resources() ...
| * PCI: add is_added flag to struct pci_devGreg Kroah-Hartman2008-04-201-5/+2
| | | | | | | | | | | | | | | | | | | | This lets us check if the device is really added to the driver core or not, which is what we need when walking some of the bus lists. The flag is there in anticipation of getting rid of the other PCI device list, which is what we used to check in this situation. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Merge branch 'master' of ↵Linus Torvalds2008-04-2190-441/+1738
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits) [POWERPC] Fix compile breakage for 64-bit UP configs [POWERPC] Define copy_siginfo_from_user32 [POWERPC] Add compat handler for PTRACE_GETSIGINFO [POWERPC] i2c: Fix build breakage introduced by OF helpers [POWERPC] Optimize fls64() on 64-bit processors [POWERPC] irqtrace support for 64-bit powerpc [POWERPC] Stacktrace support for lockdep [POWERPC] Move stackframe definitions to common header [POWERPC] Fix device-tree locking vs. interrupts [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const [POWERPC] Remove unused __max_memory variable [POWERPC] Simplify xics direct/lpar irq_host setup [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ() [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade() [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c [POWERPC] Use asm-generic/bitops/find.h in bitops.h [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup [POWERPC] 85xx: Fix the size of qe muram for MPC8568E [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier. [POWERPC] 86xx: mark functions static, other minor cleanups ...
| * | [POWERPC] Simplify xics direct/lpar irq_host setupMichael Ellerman2008-04-181-27/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The xics code currently has a direct and lpar variant of xics_host_map, the only difference being which irq_chip they use. If we remember which irq_chip we're using we can combine these two routines. That also allows us to have a single irq_host_ops instead of two. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()Michael Ellerman2008-04-181-41/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pseries_mpic_init_IRQ() implements the same logic as the xics code did to find the i8259 cascade irq. Now that we've pulled that logic out into pseries_setup_i8259_cascade() we can use it in the mpic code. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] Turn xics_setup_8259_cascade() into a generic ↵Michael Ellerman2008-04-181-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pseries_setup_i8259_cascade() Remove the xics references from xics_setup_8259_cascade(), and merge the good bits from the almost identical logic in pseries_mpic_init_IRQ(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.cMichael Ellerman2008-04-183-52/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code in xics.c to setup the i8259 cascaded irq handler is not really xics specific, so move it into setup.c - we will clean this up further in a subsequent patch. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | Merge branch 'powerpc-next' of ↵Paul Mackerras2008-04-1814-33/+211
| |\ \ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
| | * | [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setupAnton Vorontsov2008-04-172-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently USB Host isn't functional on the MPC8315E boards, for two reasons as described below. MPC8315 Reference Manual says: "The USB DR unit must have the same clock ratio as the encryption core unit, unless one of them has its clock disabled." The encryption core also drives I2C clock, so it is enabled and is equal to 01. That means USBDRCM should be 01 here. Plus, according to MPC8315E-RDB schematics, USB unit consumes CLK_IN clock from the 24.00MHz oscillator, which means we must adjust REFSEL bits as well. p.s. Idially we should rework whole 83xx/usb.c code, in two steps: 1. Move SCCR code to the U-Boot; 2. Implement fsl,usb-clock property in the device tree, so usb.c could decide what clock exactly to use on per-board basis. Though, today we're not in a hurry since there is just one 8315e board out there. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.Paul Gortmaker2008-04-171-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As suggested by Timur Tabi, we match on the old compat node ID for one version and warn accordingly. If we don't do this, we plunge people who try to use an old DTB into silent boot death with no clear indication of what the problem is. This patch should be removed at the beginning of the 2.6.27 dev cycle. It is only meant to ease the transition in the short term. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] 86xx: mark functions static, other minor cleanupsPaul Gortmaker2008-04-172-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanups as suggested by Stephen Rothwell and Dale Farnsworth, which incudes marking a bunch of functions static and add a vendor prefix to the compat node check for uniqueness. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] 85xx: Fix compile warningKumar Gala2008-04-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/powerpc/platforms/85xx/mpc85xx_ads.c: In function ‘init_ioports’: arch/powerpc/platforms/85xx/mpc85xx_ads.c:168: warning: initialization discards qualifiers from pointer target type Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] 86xx: Add support for Wind River SBC8641D boardPaul Gortmaker2008-04-173-1/+172
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for the Wind River SBC8641D board, based largely on the mpc86xx_hpcn support. The biggest difference is the lack of the Uli and the i8259 cascade, which simplifies things. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] 83xx: mpc837x_rdb: add simple-bus compatible matchingAnton Vorontsov2008-04-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is needed to probe nor and nand flashes on the localbus. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] CPM: Always use new binding.Scott Wood2008-04-174-22/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kconfig entry can go away once arch/ppc and references to the config in drivers are removed. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | [POWERPC] 85xx: Enable DMA engine on the MPC8544 DSSebastian Siewior2008-04-171-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the device tree node for the DMA engine on 8544, publish the device and enable the driver in the defconfig. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufsPaul Mackerras2008-04-184-5/+13
| |\ \ \ | | |/ / | |/| |
| | * | [POWERPC] spufs: fix incorrect file descriptors in SPU coredump note namesGerhard Stenzel2008-03-281-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At present, ppu-gdb can't trace spu infomation with coredump generated by the kernel. While the core dumps notes have correct contents, they have the wrong names, as the file descriptors used to generate the note names are off-by-one. An application that opens a SPE context as fd 3, the current core dump code will generate notes like: SPU/4/mem SPU/4/regs etc. This confuses GDB, which knows it is looking for SPE context 3 (from parsing the spu_context_run system call arguments), and cannot find any notes that match context 3. This change corrects the file descriptor counting, to only increment the fd until after we've written the note name. Signed-off-by: Gerhard Stenzel <stenzel@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
| | * | [POWERPC] spufs: save MFC command channel before purging MFC queueJeremy Kerr2008-03-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During the context save process, we currently save the MFC command channel after purging the MFC queues. This causes a systemsim warning, as the command channel may be in an unknown state after the purge. This change does the save before purging the MFC queues. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
| | * | [POWERPC] spufs: reacquire LS pointer in spu_process_callbackJeremy Kerr2008-03-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During spu_process callback, we release then acquire the SPU, but keep a pointer to the local store memory. Since the context may have been scheduled out during the callback, the ls pointer may become invalid. This change reacquires the pointer to the context local store after spu_acquire()-ing, so that it isn't invalidated by a context switch. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
| | * | [POWERPC] spufs: add newline to signal{1,2}_type filesJeremy Kerr2008-03-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All of the single-value files in spufs are terminated by a newline, except for signal1_type and signal2_type. This change adds a trailing newline to these two files. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
| * | | [POWERPC] Always add preferred consoles in platforms/pseries/lpar.cMichael Ellerman2008-04-171-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is logic in platforms/peries/lpars.c which checks if the user has specified a console on the command line, and refrains from adding a preferred console entry for the hvc/hvsi console if they have. This trips up if you use "netconsole=foo" on the command line, and has the result that you get _only_ the netconsole, because the hvc device is never added as a preferred console. Worse still if you get the netconsole configuration wrong somehow, you end up with no console at all. As it turns out we don't need to worry about checking the command line. If the user has specified "console=foo", then foo will be set as the preferred console when the command line is parsed in start_kernel(), much later than the pseries code, and so the latter setting will take effect. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | [POWERPC] Move prototype for find_udbg_vterm() into a header fileMichael Ellerman2008-04-173-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the prototype for find_udbg_vterm() into pseries.h, removing it from setup.c. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | [POWERPC] pseries/phyp dump: Reserve a variable amount of space at bootManish Ahuja2008-04-171-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the way we calculate how much space to reserve for the pHyp dump. Currently we reserve 256MB only. With this change, the code first checks to see if an amount has been specified on the boot command line with the "phyp_dump_reserve_size" option, and if so, uses that much. Otherwise it computes 5% of total ram and rounds it down to a multiple of 256MB, and uses the larger of that or 256MB. This is for large systems with a lot of memory (10GB or more). The aim is to have more space available for the kernel on reboot on machines with more resources. Although the dump will be collected pretty fast and the memory released really early on allowing the machine to have the full memory available, this alleviates any issues that can be caused by having way too little memory on very very large systems during those few minutes. Signed-off-by: Manish Ahuja <mahuja@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | [POWERPC] celleb: Coding style cleanupIshizaki Kou2008-04-179-38/+39
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | Merge branch 'for-2.6.26' of ↵Paul Mackerras2008-04-171-10/+9
| |\ \ \ | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/olof/pasemi
| | * | | [POWERPC] pasemi: Minor iommu cleanupOlof Johansson2008-04-071-10/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the pwrficient iommu code a bit. It was using u32 *-based offsets for registers, which can be a bit confusing when comparing to the manual. Generated binaries from the code is unchanged from before. Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | | [POWERPC] 4xx: Add idle wait support for 44x platformsJerone Young2008-04-162-1/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the cpu_idle loop for 44x platforms to utilize the Wait Enable feature of the CPU. This helps virtulization solutions know when the guest Linux kernel is in an idle state. A command line option called "idle" is also added to allow people to change the idle loop back to the original variation. This is done by setting "idle=spin" on the kernel command line. Signed-off-by: Jerone Young <jyoung5@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * | | | [POWERPC] iSeries: Localise and constify some iSeries dataStephen Rothwell2008-04-156-15/+11
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | [POWERPC] iSeries: Make iseries_reg_save private to iSeriesStephen Rothwell2008-04-151-8/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have the alpaca, the reg_save_ptr is no longer needed in the paca. Eradicate all global uses of it and make it static in the iSeries lpardata.c Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | [POWERPC] iSeries: Use alternate paca structure for bootingStephen Rothwell2008-04-152-4/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The iSeries HV only needs the first two fields of the paca statically initialised, so create an alternate paca that contains only those and switch to our real paca immediately after boot. This is in order to make the 1024 cpu patches easier since they will no longer have to statically initialise the pacas for iSeries. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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