- 28 Jul, 2004 27 commits
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Matt Porter authored
Exports some DMA API symbols so module clients work. Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Matt Porter authored
Fix a bug introduced in the PPC44x early uart setup from the last set of 44x fixes. Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Ryan S. Arnold authored
* include/asm-ppc64/hvcserver.h New file added to wrap ppc64 architecture specific firmware calls for use by HVCS. This file provides a struct hvcs_partner_info definition, headers for partner info gathering and vterm connection and termination interfaces. * arch/ppc64/kernel/Makefile Added build directive for hvcserver.o when HVCS is configured. * arch/ppc64/kernel/hvconsole.c Exported hvc_put_chars() and hvc_get_chars() for use by HVCS. * arch/ppc64/kernel/hvcserver.c Body of hvcserver module which accompanies the hvcs module and provides ppc64 architecture firmware calls for use by HVCS. This file provides function bodies for partner info gathering and vterm connection and termination interfaces. * drivers/char/Kconfig Added CONFIG_HVCS option for both built-in version and module version of hvcs. * drivers/char/Makefile Added build directive for hvcs.o when CONFIG_HVCS is configured. * drivers/char/hvcs.c This is the device driver for the IBM Hypervisor Virtual Console Server, "hvcs". The IBM hvcs provides a tty driver interface to allow Linux user space applications access to the system consoles of logically partitioned operating systems, e.g. Linux, running on the same partitioned Power5 ppc64 system. Physical hardware consoles per partition are not practical on this hardware so system consoles are accessed by this driver using inter-partition firmware interfaces to virtual terminal devices. * Documentation/powerpc/hvcs.txt HVCS installation and usage documentation. Thanks everyone for all the help with this driver [Andrew Morton, Paul Mackerras, Ben Herrenschmidt, Dave Hansen, Paul Mackerras, Dave Boutcher, Hollis Blanchard, Santiago Leon, Brian King, Randy Dunlap]. Signed-off-by: Ryan S. Arnold <rsa@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Joel Schopp authored
This patch is fairly straightforward. maxcpus should be per SMT thread and not per physical processor. SUSE picked this up back in May (was discussed on ppc64 mailing list) and has had no trouble with it. Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paul Mackerras authored
This patch, originally from Linas Vepstas, cleans up some wonky indentation and other formatting issues in arch/ppc64/kernel/prom.c. It does not change any actual code. Signed-off-by: Linas Vepstas <linas@linas.org> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Paul Mackerras authored
On pSeries systems, the firmware tells us a list of interrupt numbers that we should enable in order to detect various error conditions. When we get one of these interrupts we are supposed to call the firmware, which will work out and tell us what the error was and possibly also fix it. We were not correctly parsing the property values that tell us which interrupts need to be handled in this fashion. This patch fixes it. It exports prom_n_intr_cells from prom.c since that is needed to do the parsing properly. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Joel Schopp authored
On Power4 and earlier hardware there is no need to clear the CPPR (see RPAp 479 section 18.5.4.7.2 for what little info there is on the CPPR) when stopping a cpu. On hardware that uses Power5 an undocumented change has been made that requires the CPPR to be cleared if an isolate is to be done on the stopped cpu. So the following patch lets cpu hotplug work on the recent hardware. I sent this patch to the ppc64-dev list back in mid April and Suse picked it up then for SLES9 so it has been well tested for several months. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Anton Blanchard authored
ppc64 has an optimisation where it loops on get_irq until there are no more interrupts to be handled. Mark Hack notes that this optimisation hardly ever hits and costs us a potentially expensive extra read of an interrupt register every interrupt. Also make do_IRQ void, the callers never use the return value. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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David Gibson authored
The PPC64 ABI requires the stack to be 128 byte aligned (and that can become important if AltiVec registers are saved there). In the kernel, that's usually dealt with by the fact that the stack has a page more-or-less to itself. However, the emergency stacks (used in SMP bringup and when we detect a bad stack pointer) aren't necessarily page aligned, or anything aligned for that matter. This patch applies the necessary alignement constraint to them. Signed-off-by: David Gibson <dwg@au.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Johannes Stezenbach authored
Fix some breakage in dvb_usercopy() introduced by sparse cleanups in -rc2. Signed-off-by: Johannes Stezenbach <js@convergence.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Alan Cox authored
The DVB merge forgot an important change - DVB is currently using major 250, which is "local" while devices.txt (and thus FSSTND/LSB) require it uses the officially allocated 212 major. Fortunately most 2.6 users don't currently use DVB and vendors ship devfs or versions of makedev that do the right thing and generate 212 majors. Fix below, original author: Red Hat <alan@redhat.com>, OSDL certificate of authorship included by reference. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Hugh Dickins authored
Updating the mm lock ordering documentation drew attention to the fact that we were wrong to blithely add down_read(&mm->mmap_sem) to swapoff's unuse_process, while it holds swapcache page lock: not very likely, but it could deadlock against, say, mlock faulting a page back in from swap. But it looks like these days it's safe to drop and reacquire page lock if down_read_trylock fails: the page lock is held to stop try_to_unmap unmapping the page's ptes as fast as try_to_unuse is mapping them back in; but the recent fix for get_user_pages works to prevent that too. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Hugh Dickins authored
BK is still missing one piece for Oleg's install_page/vmtruncate races. Oleg didn't explicitly ACK this, but I think he did implicitly: Oleg? The previous patch to install_page, returning an error if !page_mapping once page_table_lock is held, is not enough to guard against vmtruncate. When unmap_mapping_range already did this vma, but truncate_inode_pages has not yet done this page, page->mapping will still be set, but we must now refrain from inserting the page into the page table. Could check truncate_count, but that would need caller to read and pass it down. Instead, recheck page->index against i_size, which is updated before unmap_mapping_range. Better check page->mapping too: not really necessary, but it's accidental that index is left when mapping is reset. Also, callers are expecting -EINVAL for beyond end of file, not -EAGAIN. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Stephen D. Smalley authored
This patch moves the clearing of the new personality bit from selinux_bprm_apply_creds (called from compute_creds) to selinux_bprm_set_security (called from prepare_binprm). This ensures that the bit is cleared at the same point in exec processing as for setuid/setgid binaries, prior to setting up the new image. Signed-off-by: Stephen Smalley <sds@epoch.ncsc.mil> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jens Axboe authored
Hopefully fixes the free-of-a-freed-page BUG caused during CDRW writing. This also fixes a problem in the bouncing for io errors (it needs to free the pages and clear the BIO_UPTODATE flag, not set it. it's already set. passing -EIO to bio_endio() takes care of that). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Arun Sharma authored
For clock_getres(clockid_t clock_id, struct timespec *res), the specification says "If res is NULL, the clock resolution is not returned." So this kind of call should succeed. The current implementation returns -EFAULT. The patch fixes the bug in compat_clock_getres(). Signed-off-by: Gordon Jin <gordon.jin@intel.com> Signed-off-by: Arun Sharma <arun.sharma@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jack Steiner authored
Here is a trivial patch that is required to boot the latest 2.6.7 tree on the SGI 512p system. Initialize the busy_factor in the sched_domain_init table. Otherwise, booting hangs doing excessive load balance operations. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Vladimir B. Savkin authored
I noticed that our PPPoE/PPtP access concentrator leaks pty devices. When all 4096 indices are leaked, there was need to reboot it. The following patch fixes this problem. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Nathan Lynch authored
rcu_offline_cpu and rcu_move_batch have been broken since the list_head's in struct rcu_head and struct rcu_data were replaced with singly-linked lists: CC kernel/rcupdate.o kernel/rcupdate.c: In function `rcu_move_batch': kernel/rcupdate.c:222: warning: passing arg 2 of `list_add_tail' from incompatible pointer type kernel/rcupdate.c: In function `rcu_offline_cpu': kernel/rcupdate.c:239: warning: passing arg 1 of `rcu_move_batch' from incompatible pointer type kernel/rcupdate.c:240: warning: passing arg 1 of `rcu_move_batch' from incompatible pointer type kernel/rcupdate.c:236: warning: label `unlock' defined but not used Kernel crashes when you try to offline a cpu, not surprisingly. It also looks like rcu_move_batch isn't preempt-safe so I touched that up, and got rid of an unused label in rcu_offline_cpu. Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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bk://ppc.bkbits.net/for-linus-ppcLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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bk://kernel.bkbits.net/jgarzik/libata-upstream-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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bk://gkernel.bkbits.net/misc-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Russell King authored
This patch fixes the error in the subject line.
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John W. Linville authored
Attached is a second patch to account for (most of) Herbert Xu's comments. I have left-out the part about changing state->card to a local variable where it is used a lot. Unfortunately, that usage is somewhat pervasive and I would prefer to make those changes in a separate patch -- after I have had a chance to do some testing. If you'd prefer one patch to account for the original plus these changes, let me know and I'll be happy to provide it.
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John W. Linville authored
Enclosed is a patch for the i810_audio OSS driver to support using memory-mapped I/O for those chipsets that support it. o Added a family of macros -- I810_IOREADx() and I810_IOWRITEx() -- that key off the existing card->use_mmio flag to select between using readx/writex or inx/outx for I/O operations. o Converted existing inx/outx invocations to use I810_IOREADx/I810_IOWRITEx instead. o Changed GET_CIV(), GET_LVI, and CIV_TO_LVI() not only to use I810_IOREADx/I810_IOWRITEx but also to take "card" (i.e. struct i810_card) paramter. o Removed check for "Pure MMIO interfaces" in i810_probe() -- replaced w/ (relocated) check for no I/O resources available.
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Andrew Chew authored
The macros ata_id_has_lba() and ata_id_has_dma() seem to have their bits reversed. LBA support is bit 9 of word 49 in the identify page, whereas DMA support is bit 8 of word 49 in the identify page.
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Pat LaVarre authored
I see we lost this source line in the changes since 2.6.7. But if I try SATAPI expecting no data without this source line, then my ata_piix.ko promptly dies with such complaints as: kernel: irq 18: nobody cared! With this source line, I find I can expect no data, though I still have to add auto sense to overcome: kernel: ata2: BUG: timeout without command
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- 27 Jul, 2004 6 commits
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Andi Kleen authored
This fixes several small but serious x86-64 bugs in 2.6.8rc2: - Fix array overflow in PCI bus checking (Travis Betak) - Fix broken pci_map_sg in swiotlb (Suresh B. Siddha) - Remove bogus bus check in IOMMU code Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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bk://gkernel.bkbits.net/net-drivers-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Margit Schubert-While authored
* prism54_get/set_debug_oid are missing checks for a null pointer. Reported in Bugzilla number 100.
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Margit Schubert-While authored
* In the card initialization routine, we try to set the output power. For firmware < 1.0.4.3, this leads to a worrying "mgt_commit has failed .." in the log although the device continues to react normally. Fix is simple, do not try to configure output power. (which I believe we should not be doing anyway as it is probably against local country regulations)
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Margit Schubert-While authored
* Reintroduce pushing 0 into the TRDY_TIMEOUT and RETRY_TIMEOUT registers. Make this configurable with module parameter init_pcitm. * We now have the ludicrous situation that some hardware setups require this (not even pushing 0xFF helps), whilst others don't care either way (the majority), and yet others bork if anything is pushed into these regs. If anybody can explain this (including Conexant :-) ), my ears are open.
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Margit Schubert-While authored
* oid_mgt.c is calling islpci_mgt_transaction passing the address of a pointer to the management frame. This is not being initialized by the caller. The callee only updates this pointer when successful. When not, boom. * Being ultracautious again, not only initialize in the caller, also null out the pointer unconditionally in the callee.
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- 26 Jul, 2004 7 commits
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David Mosberger authored
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David Mosberger authored
into tiger.hpl.hp.com:/data1/bk/lia64/to-linus-2.5
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David Mosberger authored
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Alexander Viro authored
Wrong ifdef around ppc nvram_read_byte() - it should be CONFIG_GENERIC_NVRAM. [that's it for today; there's more (fb stuff), but I'd rather make that a separate series] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Alexander Viro authored
compile fixes in open_pic.c - it missed cpumask conversion in several places. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Alexander Viro authored
usual "shift definition of inlines before their uses" in a couple of places in drivers/* Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Alexander Viro authored
a couple of "replace char with explicit s8 to make sure it's really signed" fixes. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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