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* [PATCH] i386: more vsyscall documentationChuck Ebbert2006-03-231-0/+3
| | | | | | | | | Document a limitation of vsyscall-sysenter, since patches to fix it have been rejected. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: fix singlestep through an int80 syscallChuck Ebbert2006-03-231-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using PTRACE_SINGLESTEP on a child that does an int80 syscall misses the SIGTRAP that should be delivered upon syscall exit. Fix that by setting TIF_SINGLESTEP when entering the kernel via int80 with TF set. /* Test whether singlestep through an int80 syscall works. */ #define _GNU_SOURCE #include <stdio.h> #include <unistd.h> #include <fcntl.h> #include <sys/ptrace.h> #include <sys/wait.h> #include <sys/mman.h> #include <asm/user.h> static int child, status; static struct user_regs_struct regs; static void do_child() { ptrace(PTRACE_TRACEME, 0, 0, 0); kill(getpid(), SIGUSR1); asm ("int $0x80" : : "a" (20)); /* getpid */ } static void do_parent() { unsigned long eip, expected = 0; again: waitpid(child, &status, 0); if (WIFEXITED(status) || WIFSIGNALED(status)) return; if (WIFSTOPPED(status)) { ptrace(PTRACE_GETREGS, child, 0, &regs); eip = regs.eip; if (expected) fprintf(stderr, "child stop @ %08x, expected %08x %s\n", eip, expected, eip == expected ? "" : " <== ERROR"); if (*(unsigned short *)eip == 0x80cd) { fprintf(stderr, "int 0x80 at %08x\n", (unsigned int)eip); expected = eip + 2; } else expected = 0; ptrace(PTRACE_SINGLESTEP, child, NULL, NULL); } goto again; } int main(int argc, char * const argv[]) { child = fork(); if (child) do_parent(); else do_child(); return 0; } Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: fix uses of user_mode() vs. user_mode_vm()Jan Beulich2006-03-236-7/+7
| | | | | | | | | | | | | | | | | | | | | | | >commit 76381fee7e8feb4c22be636aa5d4765dbe4fbf9e >Author: Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk> >Date: Thu Jun 23 00:08:46 2005 -0700 > > [PATCH] xen: x86_64: use more usermode macro > > Make use of the user_mode macro where it's possible. This is useful for Xen > because it will need only to redefine only the macro to a hypervisor call. I am of the opinion that the above changeset is incomplete, i.e. it missed converting some previous uses of user_mode to user_mode_vm. While most of them could be considered just cosmetical, at least the one in die_nmi doesn't appear to be. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk> Cc: Zachary Amsden <zach@vmware.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: actively synchronize vmalloc area when registering certain ↵Jan Beulich2006-03-234-57/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | callbacks Registering a callback handler through register_die_notifier() is obviously primarily intended for use by modules. However, the way these currently get called it is basically impossible for them to actually be used by modules, as there is, on non-PAE configurationes, a good chance (the larger the module, the better) for the system to crash as a result. This is because the callback gets invoked (a) in the page fault path before the top level page table propagation gets carried out (hence a fault to propagate the top level page table entry/entries mapping to module's code/data would nest infinitly) and (b) in the NMI path, where nested faults must absolutely not happen, since otherwise the IRET from the nested fault re-enables NMIs, potentially resulting in nested NMI occurences. Besides the modular aspect, similar problems would even arise for in- kernel consumers of the API if they touched ioremap()ed or vmalloc()ed memory inside their handlers. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Register the boot-cpu in the cpu maps earlierStas Sergeev2006-03-231-6/+11
| | | | | | | | | Register the boot-cpu in the cpu maps earlier to allow the early printk to work, and to fix an obscure deadlock at boot. Signed-off-by: Stas Sergeev <stsp@aknet.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: early_printk(): remove MAX_YPOS and MAX_XPOS macrosAndrew Morton2006-03-231-13/+10
| | | | | | | | | | Expand out these fairly pointless macros. Cc: Chuck Ebbert <76306.1226@compuserve.com> Cc: Stas Sergeev <stsp@aknet.ru> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: start early_printk at sensible screen rowChuck Ebbert2006-03-231-1/+1
| | | | | | | | | | | Use boot info to start early_printk() at the current row on VGA console, as left by the boot loader. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Cc: Stas Sergeev <stsp@aknet.ru> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: early printk handling fixesStas Sergeev2006-03-233-14/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The history is that -mm kernels do not work for me for a few months already. The things started from crashing somewhere after starting init, and for the last month - no boot at all, just "Uncompressing... OK, booting kernel", and silence. Early console didn't work too. With the latest releases this degraded into an infinite stream of the "Unknown interrupt or fault" messages. So today my patience ran out and I started to think how can I collect at least some info for the bug-report. Attached is the patch that allows to gather some valueable debug info on the problem by making an early console more useable. I can't properly test the patch, as the kernel still doesn't boot, so I'll explain it in details in a hope someone else can justify the intrusive changes. arch_hooks.h: added prototypes for setup_early_printk() and early_printk(). setup.c: killed wrong setup_early_printk() prototype. Moved setup_early_printk() a bit earlier, as it was not "early enough" to cover the bug I was fighting with. early_printk.c: made it to start printing from the bottom of the screen, otherwise the messages interfere with the ones of the boot-loader, so you can't read them. Signed-off-by: Stas Sergeev <stsp@aknet.ru> Cc: Andi Kleen <ak@muc.de> Cc: Zwane Mwaikambo <zwane@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: let signal handlers set the resume flagChuck Ebbert2006-03-231-1/+2
| | | | | | | | | Allow signal handlers to set the RF bit in EFLAGS. This lets a simple debugger using SIGTRAP skip one instruction after returning from a signal. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: Don't let ptrace set the nested task bitChuck Ebbert2006-03-231-2/+2
| | | | | | | | | There's no good reason for allowing ptrace to set the NT bit in EFLAGS, so mask it off. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386 traps: merge printk callsJean Delvare2006-03-231-6/+3
| | | | | | | | Merge a few printk calls in i386 traps. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: remove duplicate declaration of mp_bus_id_to_pci_busChris Wright2006-03-231-1/+0
| | | | | | | | mp_bus_id_to_pci_bus is declared identically twice. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Compilation fix for ES7000 when no ACPI is specified in config (i386)Natalie.Protasevich@unisys.com2006-03-234-9/+16
| | | | | | | | | | | | ES7000 platform code clean up for compilation errors and a warning. Ifdef'd the ACPI related parts in the ES7000 platform code. They were causing compile errors in certain configuration (without ACPI defined). I think this approach would be best (as opposed to Kconfig changes) since it only touches the subarch... Signed-off-by: <Natalie.Protasevich@unisys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: fall back to sensible CPU model nameChuck Ebbert2006-03-231-1/+1
| | | | | | | | | | | | | | | | | | | When vendor-specific i386 initialization code is unavailable the kernel falls back to a default CPU model name. Make that model name reflect the CPU family instead of an internal vendor index. Tested on Pentium II (family 6 model 5). /proc/cpuinfo before: model name : ff/05 after: model name : 06/05 Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Acked-by: "Seth, Rohit" <rohit.seth@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: Add a temporary to make put_user more type safeEric W. Biederman2006-03-231-5/+7
| | | | | | | | | | | | | | | | | In some code I am developing I had occasion to change the type of a variable. This made the value put_user was putting to user space wrong. But the code continued to build cleanly without errors. Introducing a temporary fixes this problem and at least with gcc-3.3.5 does not cause gcc any problems with optimizing out the temporary. gcc-4.x using SSA internally ought to be even better at optimizing out temporaries, so I don't expect a temporary to become a problem. Especially because in all correct cases the types on both sides of the assignment to the temporary are the same. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: allow disabling X86_FEATURE_SEP at bootChuck Ebbert2006-03-232-2/+19
| | | | | | | | | Allow the x86 "sep" feature to be disabled at bootup. This forces use of the int80 vsyscall. Mainly for testing or benchmarking the int80 vsyscall code. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: __devinit should be __cpuinitChuck Ebbert2006-03-233-23/+23
| | | | | | | | | | | | Several places in arch/i386/kernel/cpu and kernel/cpu were using __devinit when they should have been __cpuinit. Fixing that saves ~4K when CONFIG_HOTPLUG && !CONFIG_HOTPLUG_CPU. Noticed by Andrew Morton. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: SMP alternativesGerd Hoffmann2006-03-2320-259/+605
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement SMP alternatives, i.e. switching at runtime between different code versions for UP and SMP. The code can patch both SMP->UP and UP->SMP. The UP->SMP case is useful for CPU hotplug. With CONFIG_CPU_HOTPLUG enabled the code switches to UP at boot time and when the number of CPUs goes down to 1, and switches to SMP when the number of CPUs goes up to 2. Without CONFIG_CPU_HOTPLUG or on non-SMP-capable systems the code is patched once at boot time (if needed) and the tables are released afterwards. The changes in detail: * The current alternatives bits are moved to a separate file, the SMP alternatives code is added there. * The patch adds some new elf sections to the kernel: .smp_altinstructions like .altinstructions, also contains a list of alt_instr structs. .smp_altinstr_replacement like .altinstr_replacement, but also has some space to save original instruction before replaving it. .smp_locks list of pointers to lock prefixes which can be nop'ed out on UP. The first two are used to replace more complex instruction sequences such as spinlocks and semaphores. It would be possible to deal with the lock prefixes with that as well, but by handling them as special case the table sizes become much smaller. * The sections are page-aligned and padded up to page size, so they can be free if they are not needed. * Splitted the code to release init pages to a separate function and use it to release the elf sections if they are unused. Signed-off-by: Gerd Hoffmann <kraxel@suse.de> Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: multi-column stack backtracesChuck Ebbert2006-03-232-5/+36
| | | | | | | | | | | | | | | | | | | | Print stack backtraces in multiple columns, saving screen space. Number of columns is configurable and defaults to one so behavior is backwards-compatible. Also removes the brackets around addresses when printing more that one entry per line so they print as: <address> instead of: [<address>] This helps multiple entries fit better on one line. Original idea by Dave Jones, taken from x86_64. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make CONFIG_REGPARM enabled by defaultIngo Molnar2006-03-231-2/+10
| | | | | | | | | Make CONFIG_REGPARM enabled by default. It's a noticable win both for size and for performance, and gcc[34] handles it correctly. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: let REGPARM no longer depend on EXPERIMENTALAdrian Bunk2006-03-231-4/+1
| | | | | | | | | | | | | | | REGPARM has already gotten much testing, what about removing the dependency on EXPERIMENTAL? Additionally, this patch does: - remove the useless "default n" - remove note regarding binary only modules (nowadays, there are even some binary only modules compiled with REGPARM=y available) Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Bug fixes and cleanup for the BSD Secure Levels LSMDavi Arnaut2006-03-231-97/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch address several issues in the current BSD Secure Levels code: o plaintext_to_sha1: Missing check for a NULL return from __get_free_page o passwd_write_file: A page is leaked if the password is wrong. o fix securityfs registration order o seclvl_init is a mess and can't properly tolerate failures, failure path is upside down (deldif and delf should be switched) Cleanups: o plaintext_to_sha1: Use buffers passed in o passwd_write_file: Use kmalloc() instead of get_zeroed_page() o passwd_write_file: hashedPassword comparison is just memcmp o s/ENOSYS/EINVAL/ o misc (akpm: after some discussion it appears that the BSD secure levels feature should be scheduled for removal. But for now, let's fix these problems up). Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Stephen Smalley <sds@epoch.ncsc.mil> Cc: James Morris <jmorris@namei.org> Cc: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cciss: fix use-after-free in cciss_init_onePatrick McHardy2006-03-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | free_hba() sets hba[i] to NULL, the dereference afterwards results in this crash. Setting busy_initializing to 0 actually looks unnecessary, but I'm not entirely sure, which is why I left it in. cciss: controller appears to be disabled Unable to handle kernel NULL pointer dereference at virtual address 00000370 printing eip: c1114d53 *pde = 00000000 Oops: 0002 [#1] Modules linked in: CPU: 0 EIP: 0060:[<c1114d53>] Not tainted VLI EFLAGS: 00010286 (2.6.16 #1) EIP is at cciss_init_one+0x4e9/0x4fe eax: 00000000 ebx: c132cd60 ecx: c13154e4 edx: c27d3c00 esi: 00000000 edi: c2748800 ebp: c2536ee4 esp: c2536eb8 ds: 007b es: 007b ss: 0068 Process swapper (pid: 1, threadinfo=c2536000 task=c2535a30) Stack: <0>00000000 00000000 00000000 c13fdba0 c2536ee8 c13159c0 c2536f38 f7c74740 c132cd60 c132cd60 ffffffed c2536ef0 c10c1d51 c2748800 c2536f04 c10c1d85 c132cd60 c2748800 c132cd8c c2536f14 c10c1db8 c2748848 00000000 c2536f28 Call Trace: [<c10031d5>] show_stack_log_lvl+0xa8/0xb0 [<c1003305>] show_registers+0x102/0x16a [<c10034a2>] die+0xc1/0x13c [<c1288160>] do_page_fault+0x38a/0x525 [<c1002e9b>] error_code+0x4f/0x54 [<c10c1d51>] pci_call_probe+0xd/0x10 [<c10c1d85>] __pci_device_probe+0x31/0x43 [<c10c1db8>] pci_device_probe+0x21/0x34 [<c110a654>] driver_probe_device+0x44/0x99 [<c110a73f>] __driver_attach+0x39/0x5d [<c1109e1c>] bus_for_each_dev+0x35/0x5a [<c110a777>] driver_attach+0x14/0x16 [<c110a220>] bus_add_driver+0x5c/0x8f [<c110ab22>] driver_register+0x73/0x78 [<c10c1f6d>] __pci_register_driver+0x5f/0x71 [<c13bf935>] cciss_init+0x1a/0x1c [<c13aa718>] do_initcalls+0x4c/0x96 [<c13aa77e>] do_basic_setup+0x1c/0x1e [<c10002b1>] init+0x35/0x118 [<c1000cf5>] kernel_thread_helper+0x5/0xb Code: 04 b5 e0 de 40 c1 8d 50 04 8b 40 34 e8 3f b7 f9 ff 8b 04 b5 e0 de 40 c1 e8 aa f3 ff ff 89 f0 e8 e8 fa ff ff 8b 04 b5 e0 de 40 c1 <c7> 80 70 03 00 00 00 00 00 00 83 c8 ff 8d 65 f4 5b 5e 5f 5d c3 <0>Kernel panic - not syncing: Attempted to kill init! Signed-off-by: Patrick McHardy <kaber@trash.net> Cc: <mike.miller@hp.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] DM: Fix bug: BIO_RW_BARRIER requests to md/raid1 hang.NeilBrown2006-03-231-1/+1
| | | | | | | | | | | | Both R1BIO_Barrier and R1BIO_Returned are 4 !!!! This means that barrier requests don't get returned (i.e. b_endio called) because it looks like they already have been. Signed-off-by: Neil Brown <neilb@suse.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix scheduler deadlockAnton Blanchard2006-03-231-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have noticed lockups during boot when stress testing kexec on ppc64. Two cpus would deadlock in scheduler code trying to grab already taken spinlocks. The double_rq_lock code uses the address of the runqueue to order the taking of multiple locks. This address is a per cpu variable: if (rq1 < rq2) { spin_lock(&rq1->lock); spin_lock(&rq2->lock); } else { spin_lock(&rq2->lock); spin_lock(&rq1->lock); } On the other hand, the code in wake_sleeping_dependent uses the cpu id order to grab locks: for_each_cpu_mask(i, sibling_map) spin_lock(&cpu_rq(i)->lock); This means we rely on the address of per cpu data increasing as cpu ids increase. While this will be true for the generic percpu implementation it may not be true for arch specific implementations. One way to solve this is to always take runqueues in cpu id order. To do this we add a cpu variable to the runqueue and check it in the double runqueue locking functions. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] proc: fix duplicate line in /proc/devicesNeil Horman2006-03-231-1/+1
| | | | | | | | | | Fix a duplicate block device line printed after the "Block device" header in /proc/devices. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sparc64: fix set_page_count merge clashNick Piggin2006-03-231-2/+2
| | | | | | | | | Merge clash will have broken sparc64. Synch up its online_page implementation with powerpc, which was identical until the set_page_count removal. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds2006-03-22366-1472/+6577
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (78 commits) [PATCH] powerpc: Add FSL SEC node to documentation [PATCH] macintosh: tidy-up driver_register() return values [PATCH] powerpc: tidy-up of_register_driver()/driver_register() return values [PATCH] powerpc: via-pmu warning fix [PATCH] macintosh: cleanup the use of i2c headers [PATCH] powerpc: dont allow old RTC to be selected [PATCH] powerpc: make powerbook_sleep_grackle static [PATCH] powerpc: Fix warning in add_memory [PATCH] powerpc: update mailing list addresses [PATCH] powerpc: Remove calculation of io hole [PATCH] powerpc: iseries: Add bootargs to /chosen [PATCH] powerpc: iseries: Add /system-id, /model and /compatible [PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCII [PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.c [PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt) [PATCH] powerpc: iseries: mf related cleanups [PATCH] powerpc: Replace platform_is_lpar() with a firmware feature [PATCH] powerpc: trivial: Cleanup whitespace in cputable.h [PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early() [PATCH] powerpc: Unconfuse htab_bolt_mapping() callers ...
| * [PATCH] powerpc: Add FSL SEC node to documentationKim Phillips2006-03-231-0/+72
| | | | | | | | | | | | | | | | | | | | Documentation: Added FSL SOC SEC node definition Updated the documentation to include the definition of the SEC device node format for Freescale SOC devices. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] macintosh: tidy-up driver_register() return valuesBjorn Helgaas2006-03-231-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the assumption that driver_register() returns the number of devices bound to the driver. In fact, it returns zero for success or a negative error value. All callers of macio_register_driver() either ignore the return value or return it as the return value of a module_init() function. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: tidy-up of_register_driver()/driver_register() return valuesBjorn Helgaas2006-03-232-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Remove the assumption that driver_register() returns the number of devices bound to the driver. In fact, it returns zero for success or a negative error value. Nobody uses the return value of of_register_driver() anyway. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: via-pmu warning fixAndrew Morton2006-03-231-0/+2
| | | | | | | | | | | | | | | | drivers/macintosh/via-pmu.c:164: warning: `sleep_in_progress' defined but not used Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] macintosh: cleanup the use of i2c headersJean Delvare2006-03-234-5/+0
| | | | | | | | | | | | | | | | | | Cleanup the use of i2c headers in macintosh drivers. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: dont allow old RTC to be selectedAnton Blanchard2006-03-231-1/+1
| | | | | | | | | | | | | | | | | | Now powerpc uses the generic RTC stuff we should not enable the old RTC. Doing so will result in hangs at boot. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: make powerbook_sleep_grackle staticOlaf Hering2006-03-231-2/+1
| | | | | | | | | | | | | | | | powerbook_sleep_grackle is only called inside via-pmu, from pmu_ioctl() Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Fix warning in add_memoryAndrew Morton2006-03-231-1/+1
| | | | | | | | | | | | | | | | | | arch/powerpc/mm/mem.c: In function `add_memory': arch/powerpc/mm/mem.c:128: warning: assignment makes integer from pointer without a cast Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: update mailing list addressesStephen Rothwell2006-03-222-4/+4
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Remove calculation of io holeMichael Ellerman2006-03-224-53/+0
| | | | | | | | | | | | | | | | | | | | In mm_init_ppc64() we calculate the location of the "IO hole", but then no one ever looks at the value. So don't bother. That's actually all mm_init_ppc64() does, so get rid of it too. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Add bootargs to /chosenMichael Ellerman2006-03-221-0/+1
| | | | | | | | | | | | | | Add the command line args to the device tree as /chosen/bootargs. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Add /system-id, /model and /compatibleMichael Ellerman2006-03-221-0/+20
| | | | | | | | | | | | | | Add /system-id, /model and /compatible to the iSeries device tree. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCIIMichael Ellerman2006-03-222-0/+12
| | | | | | | | | | | | | | Add strne2a() which converts a string from EBCDIC to ASCII. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.cMichael Ellerman2006-03-222-43/+39
| | | | | | | | | | | | | | | | Make mf_get_rtc(), mf_get_boot_rtc() and mf_set_rtc() static, cause they can be. We need to move mf_set_rtc() to avoid a forward declaration. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt)Michael Ellerman2006-03-223-29/+5
| | | | | | | | | | | | | | | | | | These routines just call through to the mf routines, so point ppc_md straight at the mf routines. We need to pass the cmd through to mf_reboot to make it work, but that seems reasonable. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: iseries: mf related cleanupsMichael Ellerman2006-03-223-20/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some cleanups in the iSeries code. - Make mf_display_progress() check mf_initialized rather than the caller. - Set mf_initialized in mf_init() rather than in setup.c - Then move mf_initialized into mf.c, the only place it's used. - Move the mf related logic from iSeries_progress() to mf_display_progress() - Use a #define to size the pending_event_prealloc array - Use that define in the initialsation loop rather than sizeof jiggery pokery - Remove stupid comment(s) - Mark stuff static and/or __init Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Replace platform_is_lpar() with a firmware featureMichael Ellerman2006-03-229-17/+26
| | | | | | | | | | | | | | | | | | | | | | | | It has been decreed that platform numbers are evil, so as a step in that direction, replace platform_is_lpar() with a FW_FEATURE_LPAR bit. Currently FW_FEATURE_LPAR really means i/pSeries LPAR, in the future we might have to clean that up if we need to be more specific about what LPAR actually means. But that's another patch ... Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: trivial: Cleanup whitespace in cputable.hMichael Ellerman2006-03-221-17/+17
| | | | | | | | | | | | | | Remove redundant whitespace in include/asm-powerpc/cputable.h Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early()Michael Ellerman2006-03-221-6/+1
| | | | | | | | | | | | | | | | | | | | When iommu_init_early_pSeries() was added, ages ago, we forgot to remove the code that checks /chosen/linux,iommu-off in pSeries_init_early(). We do it now in iommu_init_early_pSeries(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Unconfuse htab_bolt_mapping() callersMichael Ellerman2006-03-221-13/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | htab_bolt_mapping() takes a vstart and pstart parameter, but all but one of its callers actually pass it vstart and vstart. Luckily before it passes paddr (calculated from paddr) to the hpte_insert routines it calls virt_to_abs() (aka. __pa()) on the address, so there isn't actually a bug. map_io_page() however does pass pstart properly, so currently it's broken AFAICT because we're calling __pa(paddr) which will get us something very large. Presumably no one's calling map_io_page() in the right context. Anyway, change htab_bolt_mapping() callers to properly pass pstart, and then use it properly in htab_bolt_mapping(), ie. don't call __pa() on it again. Booted on p5 LPAR, iSeries and Power3. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc numa: Consolidate assignment of cpus to nodesNathan Lynch2006-03-221-7/+3
| | | | | | | | | | | | | | | | | | | | We can plug the boot cpu into its node independently of whether numa topology is detected. And numa_setup_cpu does the right thing for all cases now, so remove special-casing for non-numa from the cpu hotplug callback. Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc numa: Support sparse online node mapNathan Lynch2006-03-221-52/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The powerpc numa code unconditionally onlines all nodes from 0 to the highest node id found, regardless of whether cpus or memory are present in the nodes. This wastes 8K per node and complicates some cpu and memory hotplug situations, such as adding a resource that doesn't map to one of the nodes discovered at boot. Set nodes online as resources are scanned. Fall back to node 0 only when we're sure this isn't a NUMA machine. Instead of defaulting to node 0 for cases of hot-adding a resource which doesn't belong to any initialized node, assign it to the first online node. Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
generated by cgit (git 2.34.1) at 2024-11-12 23:16:30 +0000