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* [PATCH] USB: kzalloc in sisusbvgaOliver Neukum2006-03-201-3/+2
| | | | | | | | | this does two things: - use kzalloc where appropriate - correct error return codes in ioctl Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in usbledOliver Neukum2006-03-201-2/+1
| | | | | | | another one for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in PhidgetServoOliver Neukum2006-03-201-2/+1
| | | | | | | another for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in PhidgetInterfaceKitOliver Neukum2006-03-201-6/+3
| | | | | | | another for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in ldusbOliver Neukum2006-03-201-2/+1
| | | | | | | another one for kzalloc Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in idmouseOliver Neukum2006-03-201-2/+1
| | | | | | | another for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in cythermOliver Neukum2006-03-201-2/+1
| | | | | | | another one for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in usbvideoOliver Neukum2006-03-201-2/+1
| | | | | | | another for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in w9968cfOliver Neukum2006-03-201-9/+4
| | | | | | | another one for kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in dabusbOliver Neukum2006-03-201-3/+2
| | | | | | | kzalloc in dabusb. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc for hidOliver Neukum2006-03-204-23/+10
| | | | | | | this uses kzalloc in hid. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc for storageOliver Neukum2006-03-205-13/+7
| | | | | | | another one for kzalloc. This covers the storage subdirectory. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: mdc800.c to kzallocOliver Neukum2006-03-201-3/+1
| | | | | | | one more conversion to kzalloc. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: optimise devio.c usbdev_read fixAndrew Morton2006-03-201-4/+4
| | | | | | | | | | | | | drivers/usb/core/devio.c: In function `usbdev_read': drivers/usb/core/devio.c:140: error: invalid type argument of `->' drivers/usb/core/devio.c:141: error: invalid type argument of `->' drivers/usb/core/devio.c:142: error: invalid type argument of `->' drivers/usb/core/devio.c:143: error: invalid type argument of `->' Cc: Oliver Neukum <oliver@neukum.org> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: optimise devio.c::usbdev_readOliver Neukum2006-03-201-13/+8
| | | | | | | | this is a small optimisation. It is ridiculous to do a kmalloc for 18 bytes. This puts it onto the stack. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: Add ZC0301 Video4Linux2 driverLuca Risolia2006-03-209-0/+2940
| | | | | | | | This patch adds a Video4Linux2 driver for ZC0301 Image Processor and Control Chip. Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-03-20125-4007/+14175
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (230 commits) [SPARC64]: Update defconfig. [SPARC64]: Fix 2 bugs in huge page support. [SPARC64]: CONFIG_BLK_DEV_RAM fix [SPARC64]: Optimized TSB table initialization. [SPARC64]: Allow CONFIG_MEMORY_HOTPLUG to build. [SPARC64]: Use SLAB caches for TSB tables. [SPARC64]: Don't kill the page allocator when growing a TSB. [SPARC64]: Randomize mm->mmap_base when PF_RANDOMIZE is set. [SPARC64]: Increase top of 32-bit process stack. [SPARC64]: Top-down address space allocation for 32-bit tasks. [SPARC64] bbc_i2c: Fix cpu check and add missing module license. [SPARC64]: Fix and re-enable dynamic TSB sizing. [SUNSU]: Fix missing spinlock initialization. [TG3]: Do not try to access NIC_SRAM_DATA_SIG on Sun parts. [SPARC64]: First cut at VIS simulator for Niagara. [SPARC64]: Fix system type in /proc/cpuinfo and remove bogus OBP check. [SPARC64]: Add SMT scheduling support for Niagara. [SPARC64]: Fix 32-bit truncation which broke sparsemem. [SPARC64]: Move over to sparsemem. [SPARC64]: Fix new context version SMP handling. ...
| * [SPARC64]: Update defconfig.David S. Miller2006-03-201-11/+14
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix 2 bugs in huge page support.David S. Miller2006-03-202-4/+176
| | | | | | | | | | | | | | | | | | | | 1) huge_pte_offset() did not check the page table hierarchy elements as being empty correctly, resulting in an OOPS 2) Need platform specific hugetlb_get_unmapped_area() to handle the top-down vs. bottom-up address space allocation strategies. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: CONFIG_BLK_DEV_RAM fixAndrew Morton2006-03-201-1/+1
| | | | | | | | | | | | | | init/do_mounts_rd.c depends upon CONFIG_BLK_DEV_RAM, not CONFIG_BLK_DEV_INITRD. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Optimized TSB table initialization.David S. Miller2006-03-204-1/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We only need to write an invalid tag every 16 bytes, so taking advantage of this can save many instructions compared to the simple memset() call we make now. A prefetching implementation is implemented for sun4u and a block-init store version if implemented for Niagara. The next trick is to be able to perform an init and a copy_tsb() in parallel when growing a TSB table. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Allow CONFIG_MEMORY_HOTPLUG to build.David S. Miller2006-03-201-0/+18
| | | | | | | | | | | | | | | | | | | | online_page() is straightforward, and then add a dummy remove_memory() that returns -EINVAL just like i386. There is no point in implementing remove_memory() since __remove_pages() has no implementation either. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Use SLAB caches for TSB tables.David S. Miller2006-03-203-25/+69
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Don't kill the page allocator when growing a TSB.David S. Miller2006-03-201-8/+35
| | | | | | | | | | | | | | | | | | | | | | | | Try only lightly on > 1 order allocations. If a grow fails, we are under memory pressure, so do not try to grow the TSB for this address space any more. If a > 0 order TSB allocation fails on a new fork, retry using a 0 order allocation. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Randomize mm->mmap_base when PF_RANDOMIZE is set.David S. Miller2006-03-201-2/+14
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Increase top of 32-bit process stack.David S. Miller2006-03-205-15/+21
| | | | | | | | | | | | | | Put it one page below the top of the 32-bit address space. This gives us ~16MB more address space to work with. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Top-down address space allocation for 32-bit tasks.David S. Miller2006-03-204-10/+189
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently allocations are very constrained for 32-bit processes. It grows down-up from 0x70000000 to 0xf0000000 which gives about 2GB of stack + dynamic mmap() space. So support the top-down method, and we need to override the generic helper function in order to deal with D-cache coloring. With these changes I was able to squeeze out a mmap() just over 3.6GB in size in a 32-bit process. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64] bbc_i2c: Fix cpu check and add missing module license.David S. Miller2006-03-201-1/+3
| | | | | | | | | | | | | | Should allow cheetah_plus cpu types and don't taint the kernel. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix and re-enable dynamic TSB sizing.David S. Miller2006-03-205-118/+203
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is good for up to %50 performance improvement of some test cases. The problem has been the race conditions, and hopefully I've plugged them all up here. 1) There was a serious race in switch_mm() wrt. lazy TLB switching to and from kernel threads. We could erroneously skip a tsb_context_switch() and thus use a stale TSB across a TSB grow event. There is a big comment now in that function describing exactly how it can happen. 2) All code paths that do something with the TSB need to be guarded with the mm->context.lock spinlock. This makes page table flushing paths properly synchronize with both TSB growing and TLB context changes. 3) TSB growing events are moved to the end of successful fault processing. Previously it was in update_mmu_cache() but that is deadlock prone. At the end of do_sparc64_fault() we hold no spinlocks that could deadlock the TSB grow sequence. We also have dropped the address space semaphore. While we're here, add prefetching to the copy_tsb() routine and put it in assembler into the tsb.S file. This piece of code is quite time critical. There are some small negative side effects to this code which can be improved upon. In particular we grab the mm->context.lock even for the tsb insert done by update_mmu_cache() now and that's a bit excessive. We can get rid of that locking, and the same lock taking in flush_tsb_user(), by disabling PSTATE_IE around the whole operation including the capturing of the tsb pointer and tsb_nentries value. That would work because anyone growing the TSB won't free up the old TSB until all cpus respond to the TSB change cross call. I'm not quite so confident in that optimization to put it in right now, but eventually we might be able to and the description is here for reference. This code seems very solid now. It passes several parallel GCC bootstrap builds, and our favorite "nut cruncher" stress test which is a full "make -j8192" build of a "make allmodconfig" kernel. That puts about 256 processes on each cpu's run queue, makes lots of process cpu migrations occur, causes lots of page table and TLB flushing activity, incurs many context version number changes, and it swaps the machine real far out to disk even though there is 16GB of ram on this test system. :-) Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SUNSU]: Fix missing spinlock initialization.David S. Miller2006-03-201-0/+2
| | | | | | | | | | | | Caught by CONFIG_DEBUG_SPINLOCK. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [TG3]: Do not try to access NIC_SRAM_DATA_SIG on Sun parts.David S. Miller2006-03-201-0/+4
| | | | | | | | | | | | | | Sun does't put an SEEPROM behind the tigon3 chip, among other things, so accesses to these areas just give bus timeouts. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: First cut at VIS simulator for Niagara.David S. Miller2006-03-203-1/+901
| | | | | | | | | | | | | | Niagara does not implement some of the VIS instructions in hardware, so we have to emulate them. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix system type in /proc/cpuinfo and remove bogus OBP check.David S. Miller2006-03-204-90/+12
| | | | | | | | | | | | | | | | | | | | Report 'sun4v' when appropriate in /proc/cpuinfo Remove all the verifications of the OBP version string. Just make sure it's there, and report it raw in the bootup logs and via /proc/cpuinfo. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Add SMT scheduling support for Niagara.David S. Miller2006-03-203-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | The mapping is a simple "(cpuid >> 2) == core" for now. Later we'll add more sophisticated code that will walk the sun4v machine description and figure this out from there. We should also add core mappings for jaguar and panther processors. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix 32-bit truncation which broke sparsemem.David S. Miller2006-03-201-10/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The page->flags manipulations done by the D-cache dirty state tracking was broken because the constants were not marked with "UL" to make them 64-bit, which means we were clobbering the upper 32-bits of page->flags all the time. This doesn't jive well with sparsemem which stores the section and indexing information in the top 32-bits of page->flags. This is yet another sparc64 bug which has been with us forever. While we're here, tidy up some things in bootmem_init() and paginig_init(): 1) Pass min_low_pfn to init_bootmem_node(), it's identical to (phys_base >> PAGE_SHIFT) but we should use consistent with the variable names we print in CONFIG_BOOTMEM_DEBUG 2) max_mapnr, although no longer used, was being set inaccurately, we shouldn't subtract pfn_base any more. 3) All the games with phys_base in the zones_*[] arrays we pass to free_area_init_node() are no longer necessary. Thanks to Josh Grebe and Fabbione for the bug reports and testing. Fix also verified locally on an SB2500 which had a memory layout that triggered the same problem. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Move over to sparsemem.David S. Miller2006-03-207-54/+123
| | | | | | | | | | | | | | | | This has been pending for a long time, and the fact that we waste a ton of ram on some configurations kind of pushed things over the edge. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix new context version SMP handling.David S. Miller2006-03-2010-46/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't piggy back the SMP receive signal code to do the context version change handling. Instead allocate another fixed PIL number for this asynchronous cross-call. We can't use smp_call_function() because this thing is invoked with interrupts disabled and a few spinlocks held. Also, fix smp_call_function_mask() to count "cpus" correctly. There is no guarentee that the local cpu is in the mask yet that is exactly what this code was assuming. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Bulletproof MMU context locking.David S. Miller2006-03-203-5/+7
| | | | | | | | | | | | | | | | | | | | | | 1) Always spin_lock_init() in init_context(). The caller essentially clears it out, or copies the mm info from the parent. In both cases we need to explicitly initialize the spinlock. 2) Always do explicit IRQ disabling while taking mm->context.lock and ctx_alloc_lock. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: kzalloc() conversionEric Sesterhenn2006-03-2011-58/+27
| | | | | | | | | | | | | | | | this patch converts arch/sparc64 to kzalloc usage. Crosscompile tested with allyesconfig. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix loop termination in mark_kpte_bitmap()David S. Miller2006-03-201-1/+4
| | | | | | | | | | | | | | | | | | If we were aligned, but didn't have at least 256MB left to process, we would loop forever. Thanks to fabbione for the report and testing the fix. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Simplify TSB insert checks.David S. Miller2006-03-202-23/+6
| | | | | | | | | | | | | | | | | | | | | | | | Don't try to avoid putting non-base page sized entries into the user TSB. It actually costs us more to check this than it helps. Eventually we'll have a multiple TSB scheme for user processes. Once a process starts using larger pages, we'll allocate and use such a TSB. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: More SUN4V cpu mondo bug fixing.David S. Miller2006-03-201-16/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cpu mondo sending interface isn't all that easy to use correctly... We were clearing out the wrong bits from the "mask" after getting something other than EOK from the hypervisor. It turns out the hypervisor can just be resent the same cpu_list[] array, with the 0xffff "done" entries still in there, and it will do the right thing. So don't update or try to rebuild the cpu_list[] array to condense it. This requires the "forward_progress" check to be done slightly differently, but this new scheme is less bug prone than what we were doing before. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix sun4v mna winfixup handling.David S. Miller2006-03-201-4/+4
| | | | | | | | | | | | | | We were clobbering a base register before we were done using it. Fix a comment typo while we're here. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix mini RTC driver reading.David S. Miller2006-03-201-0/+2
| | | | | | | | | | | | | | Need to subtract 1900 from year and 1 from month before giving it back to userspace. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Do not allow mapping pages within 4GB of 64-bit VA hole.David S. Miller2006-03-203-24/+73
| | | | | | | | | | | | | | | | | | | | The UltraSPARC T1 manual recommends this because the chip could instruction prefetch into the VA hole, and this would also make decoding certain kinds of memory access traps more difficult (because the chip sign extends certain pieces of trap state). Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix _PAGE_EXEC handling.David S. Miller2006-03-203-8/+15
| | | | | | | | | | | | | | | | | | | | | | First of all, use the known _PAGE_EXEC_{4U,4V} value instead of loading _PAGE_EXEC from memory. We either know which one to use by context, or we can code patch the test. Next, we need to check executability of a PTE in the generic TSB miss handler. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix typo in SUN4V D-TLB miss handler.David S. Miller2006-03-201-1/+1
| | | | | | | | | | | | Should put FAULT_CODE_DTLB into %g3 not FAULT_CODE_ITLB. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Kill bogus function externs in asm/pgtable.hDavid S. Miller2006-03-201-24/+0
| | | | | | | | | | | | These are all implemented inline earlier in the file. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Add mini-RTC driver for Starfire and SUN4V.David S. Miller2006-03-201-0/+279
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix bugs in SUN4V cpu mondo dispatch.David S. Miller2006-03-203-57/+161
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There were several bugs in the SUN4V cpu mondo dispatch code. In fact, if we ever got a EWOULDBLOCK or other error from the hypervisor call, we'd potentially send a cpu mondo multiple times to the same cpu and even worse we could loop until the timeout resending the same mondo over and over to such cpus. So let's bulletproof this thing as follows: 1) Implement cpu_mondo_send() and cpu_state() hypervisor calls in arch/sparc64/kernel/entry.S, add prototypes to asm/hypervisor.h 2) Don't build and update the cpulist using inline functions, this was causing the cpu mask to not get updated in the caller. 3) Disable interrupts during the entire mondo send, otherwise our cpu list and/or mondo block could get overwritten if we take an interrupt and do a cpu mondo send on the current cpu. 4) Check for all possible error return types from the cpu_mondo_send() hypervisor call. In particular: HV_EOK) Our work is done, all cpus have received the mondo. HV_CPUERROR) One or more of the cpus in the cpu list we passed to the hypervisor are in error state. Use cpu_state() calls over the entries in the cpu list to see which ones. Record them in "error_mask" and report this after we are done sending the mondo to cpus which are not in error state. HV_EWOULDBLOCK) We need to keep trying. Any other error we consider fatal, we report the event and exit immediately. 5) We only timeout if forward progress is not made. Forward progress is defined as having at least one cpu get the mondo successfully in a given cpu_mondo_send() call. Otherwise we bump a counter and delay a little. If the counter hits a limit, we signal an error and report the event. Also, smp_call_function_mask() error handling reports the number of cpus incorrectly. Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.1 at 2025-01-14 19:21:27 +0000