- 25 Aug, 2006 9 commits
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Stephen Rothwell authored
gcc 4.1 produces some warnings that say it is ignoring the packed attribute on some structure elements, so, since all the elements of these structs are packed, pack the structs instead. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Michael Ellerman authored
Several RTAS calls take a "config_addr" parameter, which is a particular way of specifying a PCI busno, devfn and register number into a 32-bit word. Currently these are open-coded, and I'll be adding another soon, replace them with a helper that encapsulates the logic. Be more strict about masking the busno too, just in case. Booted on P5 LPAR. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Stephen Rothwell authored
Just one bit of fallout from the constification of the get_property return value. Signed-off-by:
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Michael Neuling authored
The rtas console doesn't have to be Cell specific. If we get both RTAS tokens, we should just enabled the console then and there. Signed-off-by:
Michael Neuling <mikey@neuling.org> Signed-off-by:
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Jon Loeliger authored
Signed-off-by:
Jon Loeliger <jdl@freescale.com> Signed-off-by:
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Olof Johansson authored
Cleanup CPU inits a bit more, Geoff Levand already did some earlier. * Move CPU state save to cpu_setup, since cpu_setup is only ever done on cpu 0 on 64-bit and save is never done more than once. * Rename __restore_cpu_setup to __restore_cpu_ppc970 and add function pointers to the cputable to use instead. Powermac always has 970 so no need to check there. * Rename __970_cpu_preinit to __cpu_preinit_ppc970 and check PVR before calling it instead of in it, it's too early to use cputable. * Rename pSeries_secondary_smp_init to generic_secondary_smp_init since everyone but powermac and iSeries use it. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Olof Johansson authored
Rename cpu_setup_power4.S to cpu_setup_ppc970.S, since that's really what it is. No functional or other changes. Signed-off-by:
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Geoff Levand authored
Whitespace clean up for cell/interrupt.c. Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by:
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Michael Neuling authored
Cleanup some of the #define magic as suggested by Milton. Signed-off-by:
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- 08 Aug, 2006 12 commits
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Paul Mackerras authored
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Michael Neuling authored
Update offset comments. No functional change. Signed-off-by:
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Michael Neuling authored
This adds a shadow buffer for the SLBs and regsiters it with PHYP. Only the bolted SLB entries (top 3) are shadowed. The SLB shadow buffer tells the hypervisor what the kernel needs to have in the SLB for the kernel to be able to function. The hypervisor can use this information to speed up partition context switches. Signed-off-by:
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Matt Porter authored
The PIN_SIZE definition name changed, update 44x_mmu.c accordingly. Signed-off-by:
Matt Porter <mporter@embeddedalley.com> Signed-off-by:
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Matt Porter authored
Removes the flush_dcache_all export for non coherent platforms. We removed the last in-kernel user of this years ago in arch/ppc so it no longer serves a purpose. Plus, it breaks the build at the moment. Signed-off-by:
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Jon Loeliger authored
As per list discussion, let's add device tree source files under powerpc/boot/dts. If nothing else, it is a starting point. Signed-off-by:
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Michael Ellerman authored
We don't have much in the way of doc comments, but some of those we do have don't work because they start with "/***" or "/*", not "/**" which is what kernel-doc requires. Signed-off-by:
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Amos Waterland authored
I think that most people who use maple_defconfig are doing so for a JS21, so it might make sense to turn Tigon3 support on by default. Built and booted on a JS21. Signed-off-by:
Amos Waterland <apw@us.ibm.com> Signed-off-by:
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Jake Moilanen authored
Forgot to export symbols for MSI. Signed-off-by:
Jake Moilanen <moilanen@austin.ibm.com> Acked-by:
Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by:
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Jon Loeliger authored
IRQ setup now comes from the Flat Device Tree and use the new generic IRQ code. Fixed the fsl_soc.c IRQ OF interrupt node parsing. Removed some unused MPC86xx macro definition. Signed-off-by:
Zhang Wei <wei.zhang@freescale.com> Signed-off-by:
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Haren Myneni authored
Noticing the following might_sleep warning (dump_stack()) during kdump testing when CONFIG_DEBUG_SPINLOCK_SLEEP is enabled. All secondary CPUs will be calling rtas_set_indicator with interrupts disabled to remove them from global interrupt queue. BUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:463 in_atomic():1, irqs_disabled():1 Call Trace: [C00000000FFFB970] [C000000000010234] .show_stack+0x68/0x1b0 (unreliable) [C00000000FFFBA10] [C000000000059354] .__might_sleep+0xd8/0xf4 [C00000000FFFBA90] [C00000000001D1BC] .rtas_busy_delay+0x20/0x5c [C00000000FFFBB20] [C00000000001D8A8] .rtas_set_indicator+0x6c/0xcc [C00000000FFFBBC0] [C000000000048BF4] .xics_teardown_cpu+0x118/0x134 [C00000000FFFBC40] [C00000000004539C] .pseries_kexec_cpu_down_xics+0x74/0x8c [C00000000FFFBCC0] [C00000000002DF08] .crash_ipi_callback+0x15c/0x188 [C00000000FFFBD50] [C0000000000296EC] .smp_message_recv+0x84/0xdc [C00000000FFFBDC0] [C000000000048E08] .xics_ipi_dispatch+0xf0/0x130 [C00000000FFFBE50] [C00000000009EF10] .handle_IRQ_event+0x7c/0xf8 [C00000000FFFBF00] [C0000000000A0A14] .handle_percpu_irq+0x90/0x10c [C00000000FFFBF90] [C00000000002659C] .call_handle_irq+0x1c/0x2c [C00000000058B9C0] [C00000000000CA10] .do_IRQ+0xf4/0x1a4 [C00000000058BA50] [C0000000000044EC] hardware_interrupt_entry+0xc/0x10 --- Exception: 501 at .plpar_hcall_norets+0x14/0x1c LR = .pseries_dedicated_idle_sleep+0x190/0x1d4 [C00000000058BD40] [C00000000058BDE0] 0xc00000000058bde0 (unreliable) [C00000000058BDF0] [C00000000001270C] .cpu_idle+0x10c/0x1e0 [C00000000058BE70] [C000000000009274] .rest_init+0x44/0x5c To fix this issue, rtas_set_indicator_fast() is added so that will not wait for RTAS 'busy' delay and this new function is used for kdump (in xics_teardown_cpu()) and for CPU hotplug ( xics_migrate_irqs_away() and xics_setup_cpu()). Note that the platform architecture spec says that set-indicator on the indicator we're using here is not permitted to return the busy or extended busy status codes. Signed-off-by:
Haren Myneni <haren@us.ibm.com> Signed-off-by:
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Sonny Rao authored
We should not be calling power4_enable_pmcs() in pseries_lpar_enable_pmcs(); just doing the hypercall is sufficient. Prior to 2.6.15 we did not call power4_enable_pmcs() for an lpar. power4_enable_pmcs() tries to read the hid0 register which is no longer legal for an lpar in newer Power processors. Signed-off-by:
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- 07 Aug, 2006 1 commit
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Michael Neuling authored
We have CPU_FTR_PURR now, so let's use it. Signed-off-by:
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- 06 Aug, 2006 18 commits
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Linus Torvalds authored
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Linus Torvalds authored
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (24 commits) Input: ati_remote - use msec instead of jiffies Input: ati_remote - add missing input_sync() Input: ati_remote - relax permissions sysfs module parameters Input: ati_remote - make filter time a module parameter Input: atkbd - restore repeat rate when resuming Input: trackpoint - activate protocol when resuming Input: logips2pp - fix button mapping for MX300 Input: keyboard - change to use kzalloc Input: serio/gameport - check whether driver core calls succeeded Input: spaceball - make 4000FLX Lefty work Input: keyboard - simplify emulate_raw() implementation Input: keyboard - remove static variable and clean up initialization Input: hiddev - use standard list implementation Input: add missing handler->start() call Input: HID - fix potential out-of-bound array access Input: fix list iteration in input_release_device() Input: iforce - add Trust Force Feedback Race Master support Input: iforce - check array bounds before accessing elements Input: libps2 - warn instead of oopsing when passed bad arguments Input: fm801-gp - fix use after free ...
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa: [ALSA] Don't reject O_RDWR at opening PCM OSS with read/write-only device [ALSA] snd-emu10k1: Implement support for Audigy 2 ZS [SB0353] [ALSA] add MAINTAINERS entry for snd-aoa [ALSA] aoa: platform function gpio: ignore errors from functions that don't exist [ALSA] make snd-powermac load even when it can't bind the device [ALSA] aoa: fix toonie codec [ALSA] aoa: feature gpio layer: fix IRQ access [ALSA] Conversions from kmalloc+memset to k(z|c)alloc [ALSA] snd-emu10k1: Fixes ALSA bug#2190
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [LAPB]: Fix windowsize check [TCP]: Fixes IW > 2 cases when TCP is application limited [PKT_SCHED] RED: Fix overflow in calculation of queue average [LLX]: SOCK_DGRAM interface fixes [PKT_SCHED]: Return ENOENT if qdisc module is unavailable [BRIDGE]: netlink status fix
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David Woodhouse authored
While busy-waiting for completion, check the hardware after scheduling; don't schedule and then immediately check the _timeout_. If the yield() took a long time (as it does on my OLPC prototype board when it's busy), we'd report a timeout even though the hardware was now ready. This fixes it, and also switches the yield() for a cond_resched() because we don't actually want to be _that_ nice about it. I see nice tightly-packed SMBus transactions now, rather than waiting for milliseconds between successive phases. Actually, we shouldn't be busy-waiting here at all. We should be using interrupts. That's an exercise for another day though. Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Cc: Christer Weinigel <wingel@nano-system.com> Cc: <Jordan.Crouse@amd.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Eric Sandeen authored
I saw an oops down this path when trying to create a new file on a UDF filesystem which was internally marked as readonly, but mounted rw: udf_create udf_new_inode new_inode alloc_inode udf_alloc_inode udf_new_block returns EIO due to readonlyness iput (on error) udf_put_inode udf_discard_prealloc udf_next_aext udf_current_aext udf_get_fileshortad OOPS the udf_discard_prealloc() path was examining uninitialized fields of the udf inode. udf_discard_prealloc() already has this code to short-circuit the discard path if no extents are preallocated: if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB || inode->i_size == UDF_I_LENEXTENTS(inode)) { return; } so if we initialize UDF_I_LENEXTENTS(inode) = 0 earlier in udf_new_inode, we won't try to free the (not) preallocated blocks, since this will match the i_size = 0 set when the inode was initialized. Signed-off-by:Eric Sandeen <sandeen@sandeen.net> Signed-off-by:
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Thomas Gleixner authored
The recent fixups in futex.c need to be applied to futex_compat.c too. Fixes a hang reported by Olaf. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Olaf Hering <olh@suse.de> Signed-off-by:
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matthieu castet authored
A patch in -mm kernel correct the parsing of "address resources" of pnpacpi. Before we assumed it was memory only, but it could be also IO. But this change show an hidden bug : some resources could be producer type that are not handled by pnp layer. So we should ignore the producer resources. This patch fixes bug 6292 (http://bugzilla.kernel.org/show_bug.cgi?id=6292). Some devices like PNP0A03 have 0xd00-0xffff and 0x0-0xcf7 as IO producer resources. Before correcting "address resources" parsing, it was seen as memory and was harmless, because nobody tried to reserve this memory range as it should be IO. With the correction it become IO resources, and make failed all others device that want to register IO in this range and use pnp layer (like a ISA sound card). The solution is to ignore producer resources Signed-off-by:
Matthieu CASTET <castet.matthieu@free.fr> Signed-off-by:
Uwe Bugla <uwe.bugla@gmx.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: "Brown, Len" <len.brown@intel.com> Acked-by:
Shaohua Li <shaohua.li@intel.com> Signed-off-by:
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Chris Mason authored
reiserfs_write_full_page does zero bytes in the file past eof, but it may call get_block on those buffers as well. On machines where the page size is larger than the blocksize, this can result in mmaped files incorrectly growing up to a block boundary during writepage. The fix is to avoid calling get_block for any blocks that are entirely past eof Signed-off-by:
Chris Mason <mason@suse.com> Signed-off-by:
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Chris Mason authored
The correct lock ordering is inode lock -> BKL Signed-off-by:
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KAMEZAWA Hiroyuki authored
This patch is for collision check enhancement for memory hot add. It's better to do resouce collision check before doing memory hot add, which will touch memory management structures. And add_section() should check section exists or not before calling sparse_add_one_section(). (sparse_add_one_section() will do another check anyway. but checking in memory_hotplug.c will be easy to understand.) Signed-off-by:
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: keith mannthey <kmannth@us.ibm.com> Signed-off-by:
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KAMEZAWA Hiroyuki authored
both of acpi_memory_enable_device() and acpi_memory_add_device() may evaluate _CRS method. We should avoid evaluate device's resource twice if we could get it successfully in past. Signed-off-by:
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KAMEZAWA Hiroyuki authored
add_memory() does all necessary check to avoid collision. then, acpi layer doesn't have to check region by itself. (*) pfn_valid() just returns page struct is valid or not. It returns 0 if a section has been already added even is ioresource is not added. ioresource collision check in mm/memory_hotplug.c can do more precise collistion check. added enabled bit check just for sanity check.. Signed-off-by: -
KAMEZAWA Hiroyuki authored
find_next_system_ram() is used to find available memory resource at onlining newly added memory. This patch fixes following problem. find_next_system_ram() cannot catch this case. Resource: (start)-------------(end) Section : (start)-------------(end) Signed-off-by:
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KAMEZAWA Hiroyuki authored
find_next_system_ram() returns valid memory range which meets requested area, only used by memory-hot-add. This function always rewrite requested resource even if returned area is not fully fit in requested one. And sometimes the returnd resource is larger than requested area. This annoyes the caller. This patch changes the returned value to fit in requested area. Signed-off-by:
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KAMEZAWA Hiroyuki authored
ioresouce handling code in memory hotplug allows not-aligned memory hot add. But when memmap and other memory structures are initialized, parameters should be aligned. (if not aligned, initialization of mem_map will do wrong, it assumes parameters are aligned.) This patch fix it. And this patch allows ioresource collision check to handle -EEXIST. Signed-off-by:
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Diego Calleja authored
In bugzilla #6941, Jens Kilian reported: "The function befs_utf2nls (in fs/befs/linuxvfs.c) writes a 0 byte past the end of a block of memory allocated via kmalloc(), leading to memory corruption. This happens only for filenames which are pure ASCII and a multiple of 4 bytes in length. [...] Without DEBUG_SLAB, this leads to further corruption and hard lockups; I believe this is the bug which has made kernels later than 2.6.8 unusable for me. (This must be due to changes in memory management, the bug has been in the BeFS driver since the time it was introduced (AFAICT).) Steps to reproduce: Create a directory (in BeOS, naturally :-) with files named, e.g., "1", "22", "333", "4444", ... Mount it in Linux and do an "ls" or "find"" This patch implements the suggested fix. Credits to Jens Kilian for debugging the problem and finding the right fix. Signed-off-by:
Diego Calleja <diegocg@gmail.com> Cc: Jens Kilian <jjk@acm.org> Cc: <stable@kernel.org> Signed-off-by:
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Stefan Richter authored
At least Maxtor OneTouch III require a "start stop unit" command after auto spin-down before the next access can proceed. This patch activates the responsible code in scsi_mod for all Maxtor SBP-2 disks. https://bugzilla.novell.com/show_bug.cgi?id=183011 Maybe that should be done for all SBP-2 disks, but better be cautious. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Jody McIntyre <scjody@modernduck.com> Cc: Ben Collins <bcollins@ubuntu.com> Signed-off-by:
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