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2006-02-10[PATCH] powerpc: Clean up pSeries firmware feature initialisationMichael Ellerman
Clean up fw_feature_init in platforms/pseries/setup.c. Clean up white space and replace the while loop with a for loop - which seems clearer to me. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10[PATCH] powerpc/ppc: Add missing isyncs in head_fsl_booke.SBecky Bruce
The e500 core reference manual indicates that isync is required after mtmsr(DE bit) and mtspr DBCR0. Add isyncs to make the code conform to the spec. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10[PATCH] powerpc: lindent 85xx platform codeBecky Bruce
Ran arch/powerpc/platforms/85xx through Lindent Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10[PATCH] powerpc: rename mpc85xx.c to misc.cBecky Bruce
Rename mpc85xx.c to misc.c to match the pattern established by the 8349 port - consistency is a good thing. Also run Lindent on the file to clean it up. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10[PATCH] powerpc: mpc85xx_ads.c include file cleanupBecky Bruce
Cut-and-paste from the old platform code in arch/ppc resulted in arch/powerpc/platforms/85xx/mpc85xx_ads.c having way too many header files included. Clean this up. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10[PATCH] powerpc: Fix Kernel FP unavail exception for BookEBecky Bruce
Updated FP unavailable exception to refer to the correct function in traps.c. head_booke.h was using the old name, KernelFP, instead of kernel_fp_unavailable_exception. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10Merge ../powerpc-mergePaul Mackerras
2006-02-10[PATCH] powerpc: unshare system call registrationJANAK DESAI
Registers system call for the powerpc architecture. Signed-off-by: Janak Desai <janak@us.ibm.com> Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-10ppc: Use the system call table from arch/powerpc/kernel/systbl.SPaul Mackerras
With this, new system calls only have to be wired up in one place for ARCH=ppc and ARCH=powerpc, rather than 2. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-08[PATCH] fix iomem annotations in dart_iommuAl Viro
it's int __iomem *, not int * __iomem... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-08[PATCH] powerpc signal __user annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-08[PATCH] powermac pci iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
2006-02-07[PATCH] bogus extern in low_i2c.cAl Viro
extern in function definition is an odd thing.. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-07[PATCH] eeh_driver NULL noise removalAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-07[PATCH] drive_info removal outside of arch/i386Al Viro
drive_info is used only by hd.c and that happens under #ifdef __i386__. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcPaul Mackerras
2006-02-07[PATCH] powerpc: Lindent platforms/83xxKumar Gala
Ran arch/powerpc/platforms/83xx through Lindent Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Cleanup MPC83xx platform supportKumar Gala
Moved some code around so its usable by more systems than just the MPC834x SYS. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Add platform support for MPC834x USB controllersKumar Gala
Setup the platform devices needed by the Freescale EHCI USB host controllers based on a flat device tree Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: remove check for ELF offset in powerpc bootimageOlaf Hering
Do not check for offset, it is always set. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Move LMB_ALLOC_ANYWHERE out of lmb.hMichael Ellerman
LMB_ALLOC_ANYWHERE doesn't need to be part of the API, it's only used in lmb.c - so move it out of the header file. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Always panic if lmb_alloc() failsMichael Ellerman
Currently most callers of lmb_alloc() don't check if it worked or not, if it ever does weird bad things will probably happen. The few callers who do check just panic or BUG_ON. So make lmb_alloc() panic internally, to catch bugs at the source. The few callers who did check the result no longer need to. The only caller that did anything interesting with the return result was careful_allocation(). For it we create __lmb_alloc_base() which _doesn't_ panic automatically, a little messy, but passable. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: cleaned up fsl_soc.cKumar Gala
Cleaned up fsl_soc.c based on comments from Olof Johansson. Ran through Lindent, and split gfar_mdio init into its own function. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: cleanup pmac_newworld variable usageOlaf Hering
remove extern declarations of pmac_newworld move pmac_newworld to bss if there is any "interrupt-controller" device, then it is newworld. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Add Virtex-4 FX to cpu tableGrant C. Likely
Signed-off-by: Grant C. Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: avoid timer interrupt replay effect when onlining cpuNathan Lynch
When a cpu is hotplug-onlined, if we don't set per_cpu(last_jiffy) to something sane, timer_interrupt will execute its while loop for every tick missed since the cpu was last online (or since the system was booted, if we're adding a new cpu). This can cause weird hangs, ssh sessions dropping, and we can even go xmon if we take a global IPI at the wrong time. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: hypervisor check in pseries_kexec_cpu_downMichael Neuling
We call unregister_vpa but we don't check to see if the hypervisor supports this. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Anton Blanchard <anton@samba.org> -- arch/powerpc/platforms/pseries/setup.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Don't use toc in decrementer_iSeries_maskedMichael Ellerman
Since 404849bbd2bfd62e05b36f4753f6e1af6050a824 we've been using LOAD_REG_ADDRBASE, which uses the toc pointer, in decrementer_iSeries_masked. This can explode if we take the decrementer interrupt while we're in a module, because the toc pointer in r2 will be the module's toc pointer. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Cleanup, consolidating icache dirtying logicDavid Gibson
The code to mark a page as icache dirty (so that it will later be icache-dcache flushed when we try to execute from it) is duplicated in three places: flush_dcache_page() does this marking and nothing else, but clear_user_page() and copy_user_page() duplicate it, since those functions make the page icache dirty themselves. This patch makes those other functions call flush_dcache_page() instead, so the logic's all in one place. This will make life less confusing if we ever need to tweak the details of the the lazy icache flush mechanism. arch/powerpc/mm/mem.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] Don't check pointer for NULL before passing it to kfree ↵Jesper Juhl
[arch/powerpc/kernel/rtas_flash.c] Checking a pointer for NULL before passing it to kfree is pointless, kfree does its own NULL checking of input. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: fix compile warning in udbg_init_maple_realmodeOlaf Hering
arch/powerpc/kernel/udbg_16550.c: In function `udbg_init_maple_realmode': arch/powerpc/kernel/udbg_16550.c:162: warning: assignment from incompatible pointer type Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: add refcounting to setup_peg2 and of_get_pci_addressOlaf Hering
setup_peg2 must do some refcounting. of_get_pci_address may need to drop the node Pegasos l2cr : L2 cache was not active, activating PCI bus 0 controlled by pci at 80000000 Badness in kref_get at /home/olaf/kernel/olh/ppc64/linux-2.6.16-rc2-olh/lib/kref.c:32 Call Trace: [C037BD00] [C0007934] show_stack+0x5c/0x184 (unreliable) [C037BD30] [C000E068] program_check_exception+0x184/0x584 [C037BD90] [C000F5F0] ret_from_except_full+0x0/0x4c --- Exception: 700 at kref_get+0xc/0x24 LR = of_node_get+0x24/0x3c [C037BE50] [C004FD94] __pte_alloc_kernel+0x64/0x80 (unreliable) [C037BE70] [C000CA18] of_get_parent+0x34/0x58 [C037BE90] [C0009B18] of_get_address+0x24/0x174 [C037BED0] [C000A108] of_address_to_resource+0x24/0x68 [C037BF00] [C038B128] chrp_find_bridges+0x114/0x470 [C037BF90] [C038AE48] chrp_setup_arch+0x1fc/0x32c [C037BFB0] [C03849B0] setup_arch+0x144/0x188 [C037BFD0] [C037C45C] start_kernel+0x34/0x1a8 [C037BFF0] [000037A0] 0x37a0 Badness in kref_get at /home/olaf/kernel/olh/ppc64/linux-2.6.16-rc2-olh/lib/kref.c:32 Call Trace: [C037BC90] [C0007934] show_stack+0x5c/0x184 (unreliable) [C037BCC0] [C000E068] program_check_exception+0x184/0x584 [C037BD20] [C000F5F0] ret_from_except_full+0x0/0x4c --- Exception: 700 at kref_get+0xc/0x24 LR = of_node_get+0x24/0x3c [C037BDE0] [00000000] 0x0 (unreliable) [C037BE00] [C000CA18] of_get_parent+0x34/0x58 [C037BE20] [C0009CE8] of_translate_address+0x2c/0x2fc [C037BEA0] [C0009FE8] __of_address_to_resource+0x30/0xc4 [C037BED0] [C000A130] of_address_to_resource+0x4c/0x68 [C037BF00] [C038B128] chrp_find_bridges+0x114/0x470 [C037BF90] [C038AE48] chrp_setup_arch+0x1fc/0x32c [C037BFB0] [C03849B0] setup_arch+0x144/0x188 [C037BFD0] [C037C45C] start_kernel+0x34/0x1a8 [C037BFF0] [000037A0] 0x37a0 PCI bus 0 controlled by pci at c0000000 Top of RAM: 0x10000000, Total RAM: 0x10000000 Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: remove pointer/integer confusion in of_find_node_by_nameOlaf Hering
remove pointer/integer confusion Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: restore clock speed in /proc/cpuinfoOlaf Hering
Use generic_calibrate_decr to restore missing clock: speed in /proc/cpuinfo Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: remove pointer/integer confusion in generic_calibrate_decrOlaf Hering
remove pointer/integer confusion Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Don't overwrite flat device tree with kdump kernelMichael Ellerman
It's possible for prom_init to allocate the flat device tree inside the kdump crash kernel region. If this happens, when we load the kdump kernel we overwrite the flattened device tree, which is bad. We could make prom_init try and avoid allocating inside the crash kernel region, but then we run into issues if the crash kernel region uses all the space inside the RMO. The easiest solution is to move the flat device tree once we're running in the kernel. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: remove useless call to touch_softlockup_watchdogDave C Boutcher
It turns out that we can't stop the watchdog from triggering here. If we touch the timer (which just uses the current jiffie value) before we enable interrupts, it does nothing because jiffies are not mass-updated until after we enable interrupts. If we touch the timer after we enable interrupts, its too late because the softlockup watchdog will already have triggered. The touch_softlockup_watchdog call removed below does nothing. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: prod all processors after ibm,suspend-meDave C Boutcher
We need to prod everyone here since this is the only CPU that is guaranteed to be running after the ibm,suspend-me RTAS call returns. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: return correct rtas status from ibm,suspend-meDave C Boutcher
Correctly return the status from the RTAS call. rtas_call expects to return the status as a return value. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Fix !SMP build of rtas.cMichael Ellerman
arch/powerpc/kernel/rtas.c is getting hvcall.h via spinlock.h, but when we're building for UP we don't include spinlock.h. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: IOMMU SG paranoiaJake Moilanen
This addresses two items, which are unlikely to be hit if we trust drivers. The first is moving a memory barrier below where the vmerged SG count is passed back, but before the list is set to end. If those instructions were reordered, there could be an issue in iommu_unmap_sg(). The second is making sure we terminate the list on the failure case of iommu_map_sg(). If a driver does not look at the failure return code, it could pass a ill-formed SG list to iommu_unmap_sg(). Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Refuse to boot a kdump kernel via OFMichael Ellerman
You can't boot a kdump kernel via OF, not reliably anyway, the kernel being at 32 MB conflicts with the zImage wrapper etc. and it blows up. It's trivial to check in prom_init though, and this is early enough that we can actually drop back to OF where a reset-all will get you going again, which is kinda nice. I think this should go in for 2.6.16. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Make sure we don't create empty lmb regionsMichael Ellerman
To prevent problems later in boot, make sure we don't create zero-size lmb regions. I've checked all the callers, and at the moment no one should ever hit this. All callers use a constant size, or they check the computed size before they call us. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Don't allocate zero bytes in finish_device_tree()Michael Ellerman
In prom.c we run finish_node() on allnodes twice. The first time we just calculate how much memory we'll need, the second time we do the actual work. If the calculation stage determines that we need 0 bytes, then we should skip the lmb allocation. Although an alloc of zero will work, it has been seen to lead to a BUG_ON() in reserve_bootmem() on at least one machine. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: Fix spufs initialization sequence.Geoff Levand
This is a small fix to get the spufs init sequence right. init_spu_base() in spu_base.c should be called (via module_init(init_spu_base)) before spufs_init() (via module_init(spufs_init)) in spufs/inode.c gets called. Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07powerpc/64: Fix bug in setting floating-point exception modePaul Mackerras
When loading up the FPU, we were using a 'ld' (load doubleword) instruction to get the FP exception mode from the thread_struct, but it's only an int field. This changes the ld to lwz (load word and zero-extend). Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-01[PATCH] PowerPC/PCI Hotplug build breakLinas Vepstas
Build break: Building PCI hotplug on PowerPC results in a build break, due to failure to export symbols. Reported today by Dave Jones <davej@redhat.com>: drivers/pci/hotplug/rpaphp.ko needs unknown symbol pcibios_add_pci_devices This patch fixes the break in the arch/powerpc tree. Next patch fixes same problem in drivers/pci tree Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01[PATCH] powerpc: Fix sigmask handling in sys_sigsuspend.Heiko Carstens
Better save the sigmask instead of throwing it away so it can be restored. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01[PATCH] powerpc: enable irq's for platform functions.Ben Collins
Make the platform function interrupt functions actually work. Calls irq_enable() for the first in the list, and irq_disable() for the last. Added *func to struct irq_client so the the user can pass just that to pmf_unregister_irq_client(). Signed-off-by: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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