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| * [PATCH] powerpc: Fix call to ibm,client-architecture-supportBenjamin Herrenschmidt2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | The code in prom_init.c calling the firmware ibm,client-architecture-support method on pSeries has a bug where it fails to properly pass the instance handle of the firmware object when trying to call a method. Result ranges from the call doing nothing to the firmware crashing. (Found by Segher, thanks !) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Fix machine check problem on 32-bit kernelsPaul Mackerras2006-06-09
| | | | | | | | | | | | | | | | | | This fixes a bug found by Dave Jones that means that it is possible for userspace to provoke a machine check on 32-bit kernels. This also fixes a couple of other places where I found similar problems by inspection. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Fix bug in iommu_alloc_coherent causing hang during bootPaul Mackerras2006-06-10
| | | | | | | | | | | | | | | | | | In commit 8eb6c6e3b9c8bfed3d75536ab142d7694627c2e5, Christoph Hellwig made iommu_alloc_coherent able to do node-local allocations, but unfortunately got the order of the arguments to alloc_pages_node wrong. This fixes it. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Implement PR_[GS]ET_UNALIGN prctls for powerpcPaul Mackerras2006-06-09
| | | | | | | | | | | | | | | | | | This gives the ability to control whether alignment exceptions get fixed up or reported to the process as a SIGBUS, using the existing PR_SET_UNALIGN and PR_GET_UNALIGN prctls. We do not implement the option of logging a message on alignment exceptions. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Implement support for setting little-endian mode via prctlPaul Mackerras2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the PowerPC part of the code to allow processes to change their endian mode via prctl. This also extends the alignment exception handler to be able to fix up alignment exceptions that occur in little-endian mode, both for "PowerPC" little-endian and true little-endian. We always enter signal handlers in big-endian mode -- the support for little-endian mode does not amount to the creation of a little-endian user/kernel ABI. If the signal handler returns, the endian mode is restored to what it was when the signal was delivered. We have two new kernel CPU feature bits, one for PPC little-endian and one for true little-endian. Most of the classic 32-bit processors support PPC little-endian, and this is reflected in the CPU feature table. There are two corresponding feature bits reported to userland in the AT_HWCAP aux vector entry. This is based on an earlier patch by Anton Blanchard. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Add udbg-immortal kernel optionBenjamin Herrenschmidt2006-06-09
| | | | | | | | | | | | | | | | | | | | | | When debugging early kernel crashes that happen after console_init() and before a proper console driver takes over, we often have to go hack into udbg.c to prevent it from unregistering so we can "see" what is happening. This patch adds a kernel command line option "udbg-immortal" instead to avoid having to modify the kernel. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: oprofile support for POWER6Michael Neuling2006-06-09
| | | | | | | | | | | | | | | | | | POWER6 moves some of the MMCRA bits and also requires some bits to be cleared each PMU interrupt. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: node-aware dma allocationsChristoph Hellwig2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | Make sure dma_alloc_coherent allocates memory from the local node. This is important on Cell where we avoid going through the slow cpu interconnect. Note: I could only test this patch on Cell, it should be verified on some pseries machine by those that have the hardware. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: reorg RTAS delay codeJohn Rose2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch attempts to handle RTAS "busy" return codes in a more simple and consistent manner. Typical callers of RTAS shouldn't have to manage wait times and delay calls. This patch also changes the kernel to use msleep() rather than udelay() when a runtime delay is necessary. This will avoid CPU soft lockups for extended delay conditions. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: add num_pmcs to 970MP cputable entryAnton Blanchard2006-06-09
| | | | | | | | | | | | | | The 970MP cputable entry needs a num_pmcs entry for oprofile to work. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: fix of_parse_dma_windowWill Schmidt2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My js20 appears to lack the ibm,#dma- properties, and boot fails with a "Kernel panic - not syncing: iommu_init_table: Can't allocate 0 bytes" message. This adds a fallback to the "#address-cells" property in case the "#ibm,dma-address-cells" property is missing. Tested on js20 and power5 lpar. Unless there is a more elegant solution... :-) Signed-off-by: Will Schmidt <willschm@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc vdso updatesBenjamin Herrenschmidt2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up some locking & error handling in the ppc vdso and moves the vdso base pointer from the thread struct to the mm context where it more logically belongs. It brings the powerpc implementation closer to Ingo's new x86 one and also adds an arch_vma_name() function allowing to print [vsdo] in /proc/<pid>/maps if Ingo's x86 vdso patch is also applied. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: enable PPC_PTRACE_[GS]ETREGS on ppc32Renzo Davoli2006-06-09
| | | | | | | | | | | | | | | | | | | | | | | | | | I have tested PPC_PTRACE_GETREGS and PPC_PTRACE_SETREGS on umview. I do not understand why historically these tags has been defined as PPC_PTRACE_GETREGS and PPC_PTRACE_SETREGS instead of simply PTRACE_[GS]ETREGS. The other "originality" is that the address must be put into the "addr" field instead of the "data" field as stated in the manual. Signed-off-by: renzo davoli <renzo@cs.unibo.it> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'merge'Paul Mackerras2006-06-01
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| * [PATCH] powerpc: fix RTC/NVRAM accesses on MapleHollis Blanchard2006-05-26
| | | | | | | | | | | | | | | | | | | | Due to a firmware device tree bug, RTC and NVRAM accesses (including halt/reboot) on Maple have been broken since January, when an untested build fix went in. This code patches the device tree in Linux. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: wire up sys_[gs]et_robust_listDavid Woodhouse2006-05-23
| | | | | | | | | | | | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] powerpc: make iSeries flattened device tree dynamicStephen Rothwell2006-05-24
| | | | | | | | | | | | | | | | | | | | | | | | First we capture all the strings from dt.c statically by noting that gcc puts them in a special section of their own. Idea from Michael Ellerman. Then we move the flattened device tree to klimit. Still to come, making the values blob grow as needed. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: clean up iSeries PCI probeStephen Rothwell2006-05-24
| | | | | | | | | | | | | | | | | | | | Only scan the host bridges and then use the existing pci_devs_phb_init() routine. Also fix typo in setup of reg property. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: iSeries PCI devices can now have a devpsec attributeStephen Rothwell2006-05-24
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge ../linux-2.6Paul Mackerras2006-05-19
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| * [PATCH] Fix pSeries identification in prom_init.cBenjamin Herrenschmidt2006-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OF trampoline code prom_init.c still needs to identify IBM pSeries (PAPR) machines in order to run some platform specific code on them like instanciating the TCE tables. The code doing that detection was changed recently in 2.6.17 early stages but was done slightly incorrectly. It should be testing for an exact match of "chrp" and it currently tests for anything that begins with "chrp". That means it will incorrectly match with platforms using Maple-like device-trees and have open firmware. This fixes it by using strcmp instead of strncmp to match what the actual platform detection code does. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Auto reserve of device tree blobJimi Xenidis2006-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A devtree compiler (dtc) generated devtree blob is "relocatable" and so does not contain a reserved_map entry for the blob itself. This means that if passed to Linux, Linux will not get lmb_reserve() the blob and it could be over. The following patch will explicitly reserve the "blob" as it was given to us and stops prom_init.c from creating a reserved mapping for the blob. NOTE: that the dtc/kexec should not generate the blob reservation entry. Although if they do, LMB reserver handles overlaps. Signed-off-by: <jimix@watson.ibm.com> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: the iSeries vio lan driver changed device typeStephen Rothwell2006-05-19
| | | | | | | | | | | | | | So the IOMMU table building code needs to match. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: pseries: Use generic dma-window parsing functionJeremy Kerr2006-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the pseries iommu init code to use the new of_parse_dma_window() to parse the ibm,dma-window and ibm,my-dma-window properties of pci and virtual device nodes. Also, clean up vio_build_iommu_table() a little. Tested on pseries, with both vio and pci devices. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Add of_parse_dma_window()Jeremy Kerr2006-05-19
| | | | | | | | | | | | | | | | | | | | | | Add a function for generic parsing of dma-window properties (ie, ibm,dma-window and ibm,my-dma-window) of pci and virtual device nodes. This function will also be used by cell. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: udbg_printf() formatting attributejimix@watson.ibm.com2006-05-19
| | | | | | | | | | | | | | | | | | | | This patch allows the compiler to catch any printf-like mismatches for udbg_printf(). After some brute force building I've only found issues with my own code and lparcfg.c It could break some developers, but IMHO that would be goodness. Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Move crashkernel= handling into the kernel.Michael Ellerman2006-05-19
| | | | | | | | | | | | This was missing a quilt ref. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Kdump header cleanupMichael Ellerman2006-05-19
| | | | | | | | | | | | | | | | | | | | | | | | We need to know the base address of the kdump kernel even when we're not a kdump kernel, so add a #define for it. Move the logic that sets the kdump kernelbase into kdump.h instead of page.h. Rename kdump_setup() to setup_kdump_trampoline() to make it clearer what it's doing, and add an empty definition for the !CRASH_DUMP case to avoid a Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Unify mem= handlingMichael Ellerman2006-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently do mem= handling in three seperate places. And as benh pointed out I wrote two of them. Now that we parse command line parameters earlier we can clean this mess up. Moving the parsing out of prom_init means the device tree might be allocated above the memory limit. If that happens we'd have to move it. As it happens we already have logic to do that for kdump, so just genericise it. This also means we might have reserved regions above the memory limit, if we do the bootmem allocator will blow up, so we have to modify lmb_enforce_memory_limit() to truncate the reserves as well. Tested on P5 LPAR, iSeries, F50, 44p. Tested moving device tree on P5 and 44p and F50. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Parse early parameters earlierMichael Ellerman2006-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we have call parse_early_param() earliyish, but not really very early. In particular, it's not early enough to do things like mem=x or crashkernel=blah, which is annoying. So do it earlier. I've checked all the early param handlers, and none of them look like they should have any trouble with this. I haven't tested the booke_wdt ones though. On 32-bit we were doing the CONFIG_CMDLINE logic twice, so don't. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Make early xmon logic immune to location of early parsingMichael Ellerman2006-05-19
| | | | | | | | | | | | | | | | | | | | | | Currently early_xmon() calls directly into debugger() if xmon=early is passed. This ties the invocation of early xmon to the location of parse_early_param(), which might change. Tested on P5 LPAR and F50. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: Create /proc/rtas, /proc/ppc64/rtas if RTAS exists.mostrows@watson.ibm.com2006-05-19
| | | | | | | | | | | | | | | | | | Use the existence of RTAS device tree node to determine if /proc/rtas. /proc/ppc64/rtas are to be created. Using machine type is not reliable (i.e. Maple-like machines may have RTAS). Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: remove do-nothing cpu setup routinesGeoff Levand2006-05-19
| | | | | | | | | | | | | | | | | | | | | | Removed the do-nothing routines __setup_cpu_power3 and __setup_cpu_power4 and replaced them with a null pointer check in the caller. Also removed the Cell processor specific routine __setup_cpu_be which improperly accessed the hypervisor page size configuration at SPR HID6. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'for_paulus' of ↵Paul Mackerras2006-05-19
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
| * | powerpc: provide ppc_md.panic() for both ppc32 & ppc64Kumar Gala2006-05-05
| | | | | | | | | | | | | | | | | | | | | | | | Allow boards to provide a panic callback on ppc32. Moved the code to sets this up into setup-common.c so its shared between ppc32 & ppc64. Also moved do_init_bootmem prototype into setup.h. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | Merge ../linux-2.6Paul Mackerras2006-05-05
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| * [PATCH] powerpc: Use the ibm,pa-features property if availablePaul Mackerras2006-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | Forthcoming IBM machines will have a "ibm,pa-features" property on CPU nodes, that contains bits indicating which optional architecture features are implemented by the CPU. This adds code to use the property, if present, to update our CPU feature bitmaps. Note that this means we can both set and clear feature bits based on what the firmware tells us. This is based on a patch by Will Schmidt <willschm@us.ibm.com>. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc/kprobes: fix singlestep out-of-lineAnanth N Mavinakayanahalli2006-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently single-step inline if the instruction on which a kprobe is inserted is a trap variant. - variants (such as tdnei, used by BUG()) typically evaluate a condition and cause a trap only if the condition is satisfied. - kprobes uses the unconditional "trap" (0x7fe00008) and single-stepping again on this instruction, resulting in another trap without evaluating the condition is obviously incorrect. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'audit.b10' of ↵Linus Torvalds2006-05-01
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * 'audit.b10' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] Audit Filter Performance [PATCH] Rework of IPC auditing [PATCH] More user space subject labels [PATCH] Reworked patch for labels on user space messages [PATCH] change lspp ipc auditing [PATCH] audit inode patch [PATCH] support for context based audit filtering, part 2 [PATCH] support for context based audit filtering [PATCH] no need to wank with task_lock() and pinning task down in audit_syscall_exit() [PATCH] drop task argument of audit_syscall_{entry,exit} [PATCH] drop gfp_mask in audit_log_exit() [PATCH] move call of audit_free() into do_exit() [PATCH] sockaddr patch [PATCH] deal with deadlocks in audit_free()
| | * [PATCH] drop task argument of audit_syscall_{entry,exit}Al Viro2006-05-01
| | | | | | | | | | | | | | | | | | ... it's always current, and that's a good thing - allows simpler locking. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] powerpc: Allow devices to register with numa topologyJeremy Kerr2006-05-01
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change of_node_to_nid() to traverse the device tree, looking for a numa id. Cell uses this to assign ids to SPUs, which are children of the CPU node. Existing users of of_node_to_nid() are altered to use of_node_to_nid_single(), which doesn't do the traversal. Export an attach_sysdev_to_node() function, allowing system devices (eg. SPUs) to link themselves into the numa topology in sysfs. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] nvram_print_partitions cosmetic fixupWill Schmidt2006-04-29
| | | | | | | | | | | | | | | | | | | | | | This is a cosmetic fixup. When printing the nvram partition table, the first couple entries have a shorter 'index' value than the others, so table is a bit askew. This change makes the table look pretty. Tested on pseries and g5. Footnote: yes, this table is normally hidden behind a DEBUG_NVRAM #define. Signed-off-by: Will Schmidt <willschm@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc iommu: minor cleanupOlof Johansson2006-04-29
| | | | | | | | | | | | | | | | | | | | | | A couple of minor renames: * The iommu_table is no longer a part of the device node structure, so devnode_table is misleading * Rename struct device *-variables to hwdev Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: merge the rest of the vio codeStephen Rothwell2006-04-29
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: use a common vio_match_device routineStephen Rothwell2006-04-29
| | | | | | | | | | | | | | | | This requires the compatible properties having vaules that are empty strings instead of just being empty properties. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] powerpc: use the device tree for the iSeries vio bus probeStephen Rothwell2006-04-29
| | | | | | | | | | | | | | | | As an added bonus, since every vio_dev now has a device_node associated with it, hotplug now works. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'merge'Paul Mackerras2006-04-29
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| * [PATCH] powerpc: Add cputable entry for POWER6Anton Blanchard2006-04-29
| | | | | | | | | | | | | | | | | | | | | | | | Add a cputable entry for the POWER6 processor. The SIHV and SIPR bits in the mmcra have moved in POWER6, so disable support for that until oprofile is fixed. Also tell firmware that we know about POWER6. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Wire up *at syscallsAndreas Schwab2006-04-28
| | | | | | | | | | | | | | | | | | | | | | Wire up *at syscalls. This patch has been tested on ppc64 (using glibc's testsuite, both 32bit and 64bit), and compile-tested for ppc32 (I have currently no ppc32 system available, but I expect no problems). Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Use check_legacy_ioport() on ppc32 too.David Woodhouse2006-04-28
| | | | | | | | | | | | | | | | | | | | | | | | | | Some people report that we die on some Macs when we are expecting to catch machine checks after poking at some random I/O address. I'd seen it happen on my dual G4 with serial ports until we fixed those to use OF, but now other users are reporting it with i8042. This expands the use of check_legacy_ioport() to avoid that situation even on 32-bit kernels. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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