- 27 Jun, 2005 40 commits
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Ananth N Mavinakayanahalli authored
Now that PPC64 has no-execute support, here is a second try to fix the single step out of line during kprobe execution. Kprobes on x86_64 already solved this problem by allocating an executable page and using it as the scratch area for stepping out of line. Reuse that. Signed-off-by:
Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
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Mike Miller authored
This patch fulfills a promise I made to Christoph sometime back. I am removing the partition info from the CCISS_GETLUNINFO ioctl as I was informed my "driver had no damn business reading that structure." ;) The application folks are to use /proc or /sys for partition info from now on. I am only aware of a few apps that use this ioctl and I'm not sure they ever used the partition info. Signed-off-by:
Mike Miller <mike.miller@hp.com> Acked-by:
Jeff Garzik <jgarzik@pobox.com> Signed-off-by:
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Mike Miller authored
This is pass 2 of my patch to add pci domain info to an existing ioctl. This time I insert the domain between dev_fn and board_id as Willy suggested and change the var to unsigned short to ease Christoph's concerns. Although I thought unsigned int was the correct var type for this. I also thought it didn't matter where I inserted it in the structure. Signed-off-by:
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Mike Miller authored
This patch fixes a PCI ID I got wrong before. It also adds support for another new SAS controller due out this summer. I didn't have a marketing name prior to my last submission. Also modifies the copyright date range. Signed-off-by:
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Roland Dreier authored
Cisco bought Topspin, so I'm now a shiny happy Cisco employee. Update my entry in MAINTAINERS. Signed-off-by:
Roland Dreier <rolandd@cisco.com> Signed-off-by:
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Roland Dreier authored
Fix handling of fields with size_bits == 64. Pointed out by Hal Rosenstock. Signed-off-by:
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Roland Dreier authored
Use a copy of the id we'll return to the consumer so that we don't dereference query->sa_query after calling send_mad(). A completion may occur very quickly and end up freeing the query before we get to do anything after send_mad(). Signed-off-by:
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Roland Dreier authored
It's about time for a version bump. Signed-off-by:
Roland Dreier <roland@topspin.com> Signed-off-by:
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Roland Dreier authored
Future versions of Mellanox HCA firmware will require command mailboxes to be aligned to 4K. Support this by using a pci_pool to allocate all mailboxes. This has the added benefit of shrinking the source and text of mthca. Signed-off-by:
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Roland Dreier authored
Encapsulate mthca command interface initialization/cleanup. Signed-off-by:
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Roland Dreier authored
Free page_list buffer on error path of mthca_reg_phys_mr(). Signed-off-by:
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Roland Dreier authored
Split allocation of MTT range from creation of MR. This will be useful for implementing shared memory regions and userspace verbs. Signed-off-by:
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Roland Dreier authored
Make mthca_table_put() and mthca_table_put_range() NOPs if the device is not mem-free, so that we don't have to have "if (mthca_is_memfree())" tests in the callers of these functions. This makes our code more readable and maintainable, and saves a couple dozen bytes of text in ib_mthca.ko as well. Signed-off-by:
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Roland Dreier authored
Fix memset to use sizeof *props instead of just sizeof props. Signed-off-by:
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Roland Dreier authored
Add support for unreliable connected (UC) transport to mthca driver: - Add attributes for UC to modify QP table. - Add support for posting UC work requests. Signed-off-by:
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Roland Dreier authored
mthca apparently had the meanings of the max_rd_atomic and max_dest_rd_atomic QP attributes backwards. max_rd_atomic limits the maximum number of outstanding RDMA/atomic requests as an initiator (on a send queue), and max_dest_rd_atomic specifies the resources allocated to handle RMDA/atomic requests from the remote end of the connection. We were programming our QP context with these values swapped. Signed-off-by:
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Roland Dreier authored
Fix offset of static_rate in QP context. Pointed out by Dror Goldenberg. Signed-off-by:
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Roland Dreier authored
Switch all allocations of coherent memory from pci_alloc_consistent() to dma_alloc_coherent(), so that we can pass GFP_KERNEL. This should help when the system is low on memory. Signed-off-by:
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Roland Dreier authored
Clean up CQ debugging code: make dump_cqe print on one line, and only dump error CQ entries for local operation errors. Signed-off-by:
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Bernhard Fischer authored
- Fix incorrect cut-n-paste in error messages. - Add missing newlines in error messages. - Use DRV_NAME instead of "ib_mthca" in a couple of places. Signed-off-by:
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Tom Duffy authored
Add Sun copyright to files modified by Tom Duffy. Signed-off-by:
Tom Duffy <tduffy@sun.com> Signed-off-by:
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Andrea Arcangeli authored
I believe at least for seccomp it's worth to turn off the tsc, not just for HT but for the L2 cache too. So it's up to you, either you turn it off completely (which isn't very nice IMHO) or I recommend to apply this below patch. This has been tested successfully on x86-64 against current cogito repository (i686 compiles so I didn't bother testing ;). People selling the cpu through cpushare may appreciate this bit for a peace of mind. There's no way to get any timing info anymore with this applied (gettimeofday is forbidden of course). The seccomp environment is completely deterministic so it can't be allowed to get timing info, it has to be deterministic so in the future I can enable a computing mode that does a parallel computing for each task with server side transparent checkpointing and verification that the output is the same from all the 2/3 seller computers for each task, without the buyer even noticing (for now the verification is left to the buyer client side and there's no checkpointing, since that would require more kernel changes to track the dirty bits but it'll be easy to extend once the basic mode is finished). Eliminating a cold-cache read of the cr4 global variable will save one cacheline during the tlb flush while making the code per-cpu-safe at the same time. Thanks to Mikael Pettersson for noticing the tlb flush wasn't per-cpu-safe. The global tlb flush can run from irq (IPI calling do_flush_tlb_all) but it'll be transparent to the switch_to code since the IPI won't make any change to the cr4 contents from the point of view of the interrupted code and since it's now all per-cpu stuff, it will not race. So no need to disable irqs in switch_to slow path. Signed-off-by:
Andrea Arcangeli <andrea@cpushare.com> Signed-off-by:
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Benjamin Herrenschmidt authored
This patch adds a couple of missing symbol exports. flush_dcache_page is used by the AGP driver and rtc_lock by the RTC driver. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by:
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Benjamin Herrenschmidt authored
This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some powerbooks have, CONFIG_PM for power management related code, and just left out of any CONFIG_* option for some generally useful stuff that can be used on non-laptops as well. Signed-off-by:
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Benjamin Herrenschmidt authored
The macserial driver has been obsoleted by the new pmac_zilog driver for a while now and probably doesn't even work anymore on recent kernels. This patch removes it. Signed-off-by:
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Benjamin Herrenschmidt authored
The Power Management Unit on PowerMacs is very sensitive to timeouts during async message exchanges. It uses rather crude protocol based on a shift register with an interrupt and is almost continuously exchanging messages with the host CPU on laptops. This patch adds a routine to the open_pic driver to be able to select a PMU driver so that it bumps it's interrupt priority to above the normal level. This will allow PMU interrupts to occur while another interrupt is pending, and thus reduce the risk of machine beeing abruptly shutdown by the PMU due to a timeout in PMU communication caused by excessive interrupt latency. The problem is very rare, and usually just doesn't happen, but it is still useful to make things even more robust. Signed-off-by:
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Marcelo Tosatti authored
The proposed _tlbie call at update_mmu_cache() is safe because: Addresses for which update_mmu_cache() gets invocated are never inside the static kernel virtual mapping, meaning that there is no risk for the _tlbie() here to be thrashing the pinned entry, as Dan suspected. The intermediate TLB state in which this bug can be triggered is not visible by userspace or any other contexts, except the page fault handling path. So there is no need to worry about userspace dcbxxx users. The other solution to this is to avoid dcbst misbehaviour in the first place, which involves changing in-kernel "dcbst" callers to use 8xx specific SPR's. Summary: On 8xx, cache control instructions (particularly "dcbst" from flush_dcache_icache) fault as write operation if there is an unpopulated TLB entry for the address in question. To workaround that, we invalidate the TLB here, thus avoiding dcbst misbehaviour. Signed-off-by:
Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by:
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Yoichi Yuasa authored
arch/mips/kernel/signal.c: In function 'do_signal': arch/mips/kernel/signal.c:460: error: too many arguments to function 'try_to_freeze' Signed-off-by:
Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by:
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Bob Picco authored
I spotted this issue while in memmap_init last week. I can't say the change has any test coverage by me. start_pfn was formerly used in main "for" loop. The fix is replace start_pfn with pfn. Signed-off-by:
Bob Picco <bob.picco@hp.com> Signed-off-by:
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Kumar Gala authored
Lost a curly brace in translation. Everything is better now. Signed-off-by:
Matt McClintock <msm@freescale.com> Signed-off-by:
Kumar Gala <kumar.gala@freescale.com> Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
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rsync://rsync.kernel.org/pub/scm/linux/kernel/git/dtor/input.gitLinus Torvalds authored
Some manual fixups required due to clashes with the PF_FREEZE cleanups.
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Alan Stern authored
This one-liner fixes a test for interfaces that are already resumed. It would be nice if this could get into 2.6.12, but it's not critical since it only affects people doing selective (runtime) suspend/resume. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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David Brownell authored
This fixes a build error on pxa25x processes with pxa2xx_udc and CONFIG_USB_ETH=m # CONFIG_USB_ETH_RNDIS is not set The error is because on that CPU there's no status transfer support except with RNDIS. Workaround, enable the RNDIS support too. Signed-off-by:Ian Campbell <icampbell@arcom.com> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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David Brownell authored
One debug message won't print the right value; OSDL bugid 4545. Signed-off-by:
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