- 10 12月, 2005 2 次提交
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由 Bob Moore 提交于
Implemented support for the EM64T and other x86_64 processors. This essentially entails recognizing that these processors support non-aligned memory transfers. Previously, all 64-bit processors were assumed to lack hardware support for non-aligned transfers. Completed conversion of the Resource Manager to nearly full table-driven operation. Specifically, the resource conversion code (convert AML to internal format and the reverse) and the debug code to dump internal resource descriptors are fully table-driven, reducing code and data size and improving maintainability. The OSL interfaces for Acquire and Release Lock now use a 64-bit flag word on 64-bit processors instead of a fixed 32-bit word. (Alexey Starikovskiy) Implemented support within the resource conversion code for the Type-Specific byte within the various ACPI 3.0 *WordSpace macros. Fixed some issues within the resource conversion code for the type-specific flags for both Memory and I/O address resource descriptors. For Memory, implemented support for the MTP and TTP flags. For I/O, split the TRS and TTP flags into two separate fields. Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bob Moore 提交于
Completed a major overhaul of the Resource Manager code - specifically, optimizations in the area of the AML/internal resource conversion code. The code has been optimized to simplify and eliminate duplicated code, CPU stack use has been decreased by optimizing function parameters and local variables, and naming conventions across the manager have been standardized for clarity and ease of maintenance (this includes function, parameter, variable, and struct/typedef names.) All Resource Manager dispatch and information tables have been moved to a single location for clarity and ease of maintenance. One new file was created, named "rsinfo.c". The ACPI return macros (return_ACPI_STATUS, etc.) have been modified to guarantee that the argument is not evaluated twice, making them less prone to macro side-effects. However, since there exists the possibility of additional stack use if a particular compiler cannot optimize them (such as in the debug generation case), the original macros are optionally available. Note that some invocations of the return_VALUE macro may now cause size mismatch warnings; the return_UINT8 and return_UINT32 macros are provided to eliminate these. (From Randy Dunlap) Implemented a new mechanism to enable debug tracing for individual control methods. A new external interface, acpi_debug_trace(), is provided to enable this mechanism. The intent is to allow the host OS to easily enable and disable tracing for problematic control methods. This interface can be easily exposed to a user or debugger interface if desired. See the file psxface.c for details. acpi_ut_callocate() will now return a valid pointer if a length of zero is specified - a length of one is used and a warning is issued. This matches the behavior of acpi_ut_allocate(). Signed-off-by: NBob Moore <robert.moore@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 02 12月, 2005 2 次提交
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由 Eugene Surovegin 提交于
Correctly specify treeboot based image entrypoint. Currently makefile uses $(ENTRYPOINT) which isn't defined anywhere. Each board port sets entrypoint-$(CONFIG_BOARD_NAME) instead. Without this patch I cannot boot Ocotea (PPC440GX eval board) anymore. I was getting random "OS panic" errors from OpenBIOS for a while, but with current kernel I get them all the time (probably because image became bigger). Signed-off-by: NEugene Surovegin <ebs@ebshome.net> Acked-by: NTom Rini <trini@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Vitaly Bordug 提交于
The time to wait after deasserting PCI_RST has been counted with incorrect value - this patch fixes the issue. Signed-off-by: NVitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 01 12月, 2005 18 次提交
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由 Richard Purdie 提交于
Patch from Richard Purdie Akita requires inbuilt kernel i2c support for its GPIOs. Add this requirement to Kconfig and update the defconfig to match. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Jeff Hansen 提交于
There is a typo in the ARM IXDP425 setup definition that mistakenly tries to use UART1's IRQ for UART2's traffic. Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
From Sergei Shtylylov <sshtylyov@ru.mvista.com>. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Fixes BCSR accesses in the board setup/reset code. The registers are actually 16-bit, and their addresses are different between DBAu1550 and other DBAu1xx0 boards. From Sergei Shtylylov <sshtylyov@ru.mvista.com>. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
The way we were doing things does no longer work on 2.6. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
From Daniel Jacobowitz <dan@debian.org>. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Daniel Jacobowitz 提交于
The rdhwr emulation accidentally swallowed the SIGILL from most other illegal instructions. Make sure to return -EFAULT by default. Signed-off-by: NDaniel Jacobowitz <dan@codesourcery.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
... because they have R4000-style caches. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Sergei Shtylylov 提交于
o Check if IRQ is disabled or in progress before reenabling interrupts in jmr3927_irq_end.. o s/spinlock_irqsave/spin_lock_irqsave/ o s/spinlock_irqrestore/spin_unlock_irqrestore/ o Flush write buffer after setting IRQ mask o In 2.6 jmr3927_ioc_interrupt interrupt handlers return irqreturn_t Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Shaohua Li 提交于
Handle FADT 2.0 xpmtmr address 0 case. http://bugzilla.kernel.org/show_bug.cgi?id=5283 Signed-off-by: Shaohua Li<shaohua.li@intel.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 MAEDA Naoaki 提交于
arch/ia64/kernel/acpi-ext.c: In function `acpi_vendor_resource_match': arch/ia64/kernel/acpi-ext.c:38: error: structure has no member named `id' Signed-off-by: NMAEDA Naoaki <maeda.naoaki@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Russell King 提交于
Lazy flush_dcache_page() causes userspace instability on SMP platforms, so disable it for now. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 30 11月, 2005 9 次提交
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由 Shaohua Li 提交于
Setting irq affinity stops working when MSI is enabled. With MSI, move_irq is empty, so we can't change irq affinity. It appears a typo in Ashok's original commit for this issue. X86_64 actually is using move_native_irq. Signed-off-by: NShaohua Li <shaohua.li@intel.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Paolo Galtieri 提交于
I recently discovered a bug on PPC which causes the floating point registers to get corrupted when CONFIG_PREEMPT=y. The problem occurred while running a multi threaded Java application that does floating point. The problem could be reproduced in anywhere from 2 to 6 hours. With the patch I have included below it ran for over a week without failure. Signed-off-by: NPaolo Galtieri <pgaltieri@mvista.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Tom Rini <trini@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Thierry Vignaud 提交于
Anne NICOLAS <anne.nicolas@mandriva.com> and Andres Kaaber <andres.kaaber@rescue.ee> reported their HP laptop didn't reboot smoothly. Signed-off-by: NThierry Vignaud <tvignaud@mandriva.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Olaf Hering 提交于
Use the correct pointer to clear the memory of the return values, to prevent stack corruption in the callers stackframe. Signed-off-by: NOlaf Hering <olh@suse.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paul Mackerras 提交于
This fixes a bug noticed by Paolo Galtieri and fixed for ARCH=ppc in the previous commit (ppc: fix floating point register corruption). This fixes the arch/powerpc code by adding preempt_disable/enable, and also cleans it up a bit by pulling out the code that discards any lazily-switched CPU register state into a new function, rather than having that code repeated in three places. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paolo Galtieri 提交于
I recently discovered a bug on PPC which causes the floating point registers to get corrupted when CONFIG_PREEMPT=y. The problem occurred while running a multi threaded Java application that does floating point. The problem could be reproduced in anywhere from 2 to 6 hours. With the patch I have included below it ran for over a week without failure. Signed-off-by: NPaolo Galtieri <pgaltieri@mvista.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Tom Rini <trini@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 David S. Miller 提交于
Increment the PFN field of the PTE so that the tests on vm_pfn in mm/memory.c match up. The TLB ignores these lower bits for larger page sizes, so it's OK to set things like this. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Keshavamurthy Anil S 提交于
break.b always sets cr.iim to 0 and the current code tries to get the break_num by decoding instruction. However, their seems to be a race condition while reading the regs->cr_iip, as on other cpu the break.b at regs->cr_iip might have been replaced with the original instruction as a result of unregister_kprobe() and hence decoding instruction to obtain break_num will result in wrong value in this case. Also includes changes to kprobes.c which now has to handle break number zero. Signed-off-by: NAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Dean Roe 提交于
A single SGI Altix system can be divided into multiple partitions, each running their own instance of the Linux kernel. pfn_valid() is currently not optimal for any but the first partition, since it does not compare the pfn with min_low_pfn before calling the more costly ia64_pfn_valid(). Signed-off-by: NDean Roe <roe@sgi.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 29 11月, 2005 9 次提交
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由 Paul Mackerras 提交于
Both 32-bit and 64-bit use the same inline flush_icache_range definition now, so both need to export __flush_icache_range, not just 64-bit. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Otavio Salvador 提交于
Export symbol needed to allow MOL to run. This was changed to be inline in past and forgot to be change here. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Hirokazu Takata 提交于
This patch is for supporting IDE interface for M3A-2170(Mappi-III) board. Signed-off-by: NMamoru Sakugawa <sakugawa@linux-m32r.org> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Hirokazu Takata 提交于
This patch fixes a deadlock problem of the m32r SMP kernel. In the m32r kernel, sys_tas() system call is provided as a test-and-set function for userspace, for backward compatibility. In some multi-threading application program, deadlocks were rarely caused at sys_tas() funcion. Such a deadlock was caused due to a collision of __pthread_lock() and __pthread_unlock() operations. The "tas" syscall is repeatedly called by pthread_mutex_lock() to get a lock, while a lock variable's value is not 0. On the other hand, pthead_mutex_unlock() sets the lock variable to 0 for unlocking. In the previous implementation of sys_tas() routine, there was a possibility that a unlock operation was ignored in the following case: - Assume a lock variable (*addr) was equal to 1 before sys_tas() execution. - __pthread_unlock() operation is executed by the other processor and the lock variable (*addr) is set to 0, between a read operation ("oldval = *addr;") and the following write operation ("*addr = 1;") during a execution of sys_tas(). In this case, the following write operation ("*addr = 1;") overwrites the __pthread_unlock() result, and sys_tas() fails to get a lock in the next turn and after that. According to the attatched patch, sys_tas() returns 0 value in the next turn and deadlocks never happen. Signed-off-by: NHitoshi Yamamoto <Yamamoto.Hitoshi@ap.MitsubishiElectric.co.jp> Signed-off-by: NHirokazu Takata <takata@linux-m32r.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 David Howells 提交于
The attached patch implements a bunch of small changes to the FRV arch to make it work again. It deals with the following problems: (1) SEM_DEBUG should be SEMAPHORE_DEBUG. (2) The argument list to pcibios_penalize_isa_irq() has changed. (3) CONFIG_HIGHMEM can't be used directly in #if as it may not be defined. (4) page->private is no longer directly accessible. (5) linux/hardirq.h assumes asm/hardirq.h will include linux/irq.h (6) The IDE MMIO access functions are given pointers, not integers, and so get type casting errors. (7) __pa() is passed an explicit u64 type in drivers/char/mem.c, but that can't be cast directly to a pointer on a 32-bit platform. (8) SEMAPHORE_DEBUG should not be contingent on WAITQUEUE_DEBUG as that no longer exists. (9) PREEMPT_ACTIVE is too low a value. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 David S. Miller 提交于
Here are the Sparc bits. Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Linus Torvalds 提交于
This replaces the (in my opinion horrible) VM_UNMAPPED logic with very explicit support for a "remapped page range" aka VM_PFNMAP. It allows a VM area to contain an arbitrary range of page table entries that the VM never touches, and never considers to be normal pages. Any user of "remap_pfn_range()" automatically gets this new functionality, and doesn't even have to mark the pages reserved or indeed mark them any other way. It just works. As a side effect, doing mmap() on /dev/mem works for arbitrary ranges. Sparc update from David in the next commit. Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Richard Purdie 提交于
Patch from Richard Purdie This updates the Zaurus defconfigs. Poodle gets merged into corgi_defconfig and support for tosa and akita is enabled. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Richard Purdie 提交于
Patch from Richard Purdie Add iWMMX Extentions for the pxa27x based Zaurus models and fix a couple of minor mistakes in the PXA Kconfig file. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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