- 02 Nov, 2005 24 commits
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
Manual fixups for some clashes due to re-indenting.
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Andrew Morton authored
drivers/char/tlclk.c: In function `tlclk_init': drivers/char/tlclk.c:775: warning: implicit declaration of function `platform_device_register_simple' Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Horms authored
This section of code calls .audit_syscal_exit, but is inside CONFIG_AUDIT, so it will fail to build if CONFIG_AUDITSYSCALL is not defined. After discussion with David Woodhouse, change the ifdef to CONFIG_AUDITSYSCALL Signed-off-by:
Horms <horms@verge.net.au> Acked-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Chris Wright authored
CC drivers/char/tpm/tpm_nsc.o drivers/char/tpm/tpm_nsc.c:277: error: `platform_bus_type' undeclared here (not in a function) ... CC drivers/char/tpm/tpm_atmel.o drivers/char/tpm/tpm_atmel.c:175: error: `platform_bus_type' undeclared here (not in a function) Make sure to include proper headers. Signed-off-by:
Chris Wright <chrisw@osdl.org> Signed-off-by:
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Greg Ungerer authored
Add reset/reboot code to support the ColdFire 5208 family. Patch originally from Matt Wadell (from code originally written by Mike Lavender). Signed-off-by:
Greg Ungerer <gerg@uclinux.com> Signed-off-by:
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Greg Ungerer authored
Add support for the UARTs on the ColdFire 5208 family. Patch originally from Matt Wadell (from code originally written by Mike Lavender). Signed-off-by:
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Greg Ungerer authored
The PIT timer in the 5208 ColdFire has slightly different interrupt bit definitions than the PIT timer used on other ColdFire parts. Define the commonly used bit and mask numbers here, and let part specific defines take precedence if they are defined. Patch originally from Matt Wadell (from code originally written by Mike Lavender). Signed-off-by:
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Greg Ungerer authored
Add support for the PIT timer used in the 5208 ColdFire fmaily. Patch originally from Matt Wadell (from code originally modified by Mike Lavender). Signed-off-by:
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Greg Ungerer authored
Use board name defines to distinguish boards, instead of combinations of more generic defines. Signed-off-by:
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Greg Ungerer authored
Add support for the cpu cache of the 5208 ColdFire fmaily. Patch originally from Matt Wadell (from code originally written by Mike Lavender). Signed-off-by:
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Greg Ungerer authored
Add support for the internal register map of the 5208 ColdFire fmaily. Patch originally from Matt Wadell (from code originally written by Mike Lavender). Signed-off-by:
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Greg Ungerer authored
Define the register space of the new 5208 ColdFire family (which includes to 5207). It is mostly similar to the other ColdFire parts. Signed-off-by:
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Greg Ungerer authored
Use board name define to differentiate boards, not combination of more generic defines. Signed-off-by:
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Greg Ungerer authored
Updated m68knommu defconfig. Part of changing the "Motorola" names to their new name "Freescale". Signed-off-by:
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Greg Ungerer authored
Remove unmaintained asm-m68knommu/ide.h. It is completely out of date - and there is no underlying support for it. Signed-off-by:
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Greg Ungerer authored
Remove auto-generated file from source base. Signed-off-by:
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Greg Ungerer authored
"extern inline" doesn't make much sense here. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Roland Dreier authored
I don't really understand why gcc gives the error it does, but without this patch, when building with CONFIG_HOTPLUG=n, I get errors like: CC arch/x86_64/pci/../../i386/pci/fixup.o arch/x86_64/pci/../../i386/pci/fixup.c: In function `pci_fixup_i450nx': arch/x86_64/pci/../../i386/pci/fixup.c:13: error: pci_fixup_i450nx causes a section type conflict The change is obviously correct: an array should be declared __devinitdata rather that __devinit. Signed-off-by:Roland Dreier <rolandd@cisco.com> Acked-by:
Martin J. Bligh <mbligh@mbligh.org> Signed-off-by:
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- 01 Nov, 2005 16 commits
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Deepak Saxena authored
Patch from Deepak Saxena CONFIG_MACH_GTWX5715 hardcodes the machine type in head-xscale.S so we can no longer boot on any other machine types. The proper fix would be to remove the hardcoding, but that machine is an off-the-shelf system and most users won't have access to the bootloader. :( Signed-off-by:
Deepak Saxena <dsaxena@plexity.net> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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Dan Williams authored
Patch from Dan Williams * If request_irq fails then a call to release_mem_region will be made with an invalid pointer. * Two formatting fixes Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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Lennert Buytenhek authored
Patch from Lennert Buytenhek This patch adds a microcode loader for the ixp2000 architecture. The ixp2000 is an xscale-based CPU with a number of additional small CPUs ('microengines') on die that can be programmed to do various things. Depending on the ixp2000 model, there are between 2 and 16 microengines. This code provides an API that allows configuring the microengines, loading code into them, and starting and stopping them and reading out a number of status registers, and is used by the microengine network driver that was recently announced to netdev. Signed-off-by:Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by:
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Nicolas Pitre authored
Patch from Nicolas Pitre This patch provides a preemption safe implementation of copy_to_user and copy_from_user based on the copy template also used for memcpy. It is enabled unconditionally when CONFIG_PREEMPT=y. Otherwise if the configured architecture is not ARMv3 then it is enabled as well as it gives better performances at least on StrongARM and XScale cores. If ARMv3 is not too affected or if it doesn't matter too much then uaccess.S could be removed altogether. Signed-off-by:
Nicolas Pitre <nico@cam.org> Signed-off-by:
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Nicolas Pitre authored
Patch from Nicolas Pitre This patch provides a new implementation for optimized memory copy functions on ARM. It is made of two levels: a template that consists of the core copy code and separate files that define macros to be used with the core code depending on the type of copy needed. This allows for best performances while sharing the same core for implementing memcpy(), copy_from_user() and copy_to_user() for instance. Two reasons for this work: 1) the current copy_to_user/copy_from_user implementation assumes no task switch will ever occur in the middle of each copied page making it completely unsafe with CONFIG_PREEMPT=y. 2) current copy implementations are measurably suboptimal and optimizing different implementations separately is a pain and more opportunities for bugs. The reason for (1) is the fact that copy inside user pages are performed with the ldm instruction which has no mean for testing user protections and could possibly race with process preemption bypassing the COW mechanism for example. This is a longstanding issue that we said ought to be fixed for about two years now. The solution is to substitute those ldm insns with a series of ldrt or strt insns to enforce user memory protection. At least on StrongARM and XScale cores the ldm is not faster than the equivalent ldr/str insns with a warm i-cache so there is no measurable performance degradation with that change. The fact that the copy code is a template makes it pretty easy to reuse the same core code as for memcpy and benefit from the same performance optimizations. Now (2) is best demonstrated with actual throughput measurements. First, here is a summary of memcopy tests performed on a StrongARM core: PTR alignment buffer size kernel version this version ------------------------------------------------------------ aligned 32 59.73 107.43 unaligned 32 61.31 74.72 aligned 100 132.47 136.15 unaligned 100 103.84 123.76 aligned 4096 130.67 130.80 unaligned 4096 130.68 130.64 aligned 1048576 68.03 68.18 unaligned 1048576 68.03 68.18 The buffer size is in bytes and the measured speed in MB/s. The copy was performed repeatedly with given buffer and throughput averaged over 3 seconds. Here we can see that the current kernel version has a higher entry cost that shows up with small buffers. As buffer size grows both implementation converge to the same throughput. Now here's the exact same test performed on an XScale core (PXA255): PTR alignment buffer size kernel version this version ------------------------------------------------------------ aligned 32 46.99 77.58 unaligned 32 53.61 59.59 aligned 100 107.19 136.59 unaligned 100 83.61 97.58 aligned 4096 129.13 129.98 unaligned 4096 128.36 128.53 aligned 1048576 53.76 59.41 unaligned 1048576 33.67 56.96 Again we can see the entry setup cost being higher for the current kernel before getting to the main copy loop. Then throughput results converge as long as the buffer remains in the cache. Then the 1MB case shows more differences probably due to better pld placement and/or less instruction interlocks in this proposed implementation. Disclaimer: The PXA system was running with slower clocks than the StrongARM system so trying to infer any conclusion by comparing those separate sets of results side by side would be completely inappropriate. So... What this patch does is to replace both memcpy and memmove with an implementation based on the provided copy code template. The memmove code is kept separate since it is used only if the memory areas involved do overlap in which case the code is a transposition of the template but with the copy occurring in the opposite direction (trying to fit that mode into the template turned it into a mess not worth it for memmove alone). And obviously both memcpy and memmove were tested with all kinds of pointer alignments and buffer sizes to exercise all code paths for correctness. The next patch will provide the now trivial replacement implementation copy_to_user and copy_from_user. Signed-off-by:
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Nicolas Pitre authored
Patch from Nicolas Pitre Required for future enhancement patches. Signed-off-by:
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David Brownell authored
Patch from David Brownell Lubbock updates: * Provide an address for the SMC91x chip that doesn't generate a boot-time warning (matching the EEPROM). * Update MMC support to (a) detect card insert/remove, and (b) report the readonly switch setting for SD cards. Previously, MMC/SD cards had to be present at boot time else they couldn't be detected. Signed-off-by:David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Ben Dooks authored
Patch from Ben Dooks Add definition for S3C2410_IISMOD_FS_MASK Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Ben Dooks authored
Patch from Ben Dooks Update the Documentation/arm/Samsung-S3C24XX to add example platform data initialisation, and add the linux-arm mailing list URL. Signed-off-by:
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Ben Dooks authored
Patch from Ben Dooks Platform data for the LCD/framebuffer driver for the RX3715 LCD panel. Signed-off-by:
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Lennert Buytenhek authored
Patch from Lennert Buytenhek Misc ixp2000 typo and whitespace fixes. Signed-off-by:
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Lennert Buytenhek authored
Patch from Lennert Buytenhek Switch the users of ixp2000_reg_write that depend on writes being flushed out of the write buffer by the time that function returns over to ixp2000_reg_wrb. When using XCB=101, writes to the same functional unit are still guaranteed to complete in order, so we only need to protect against: - reordering of writes to different functional units - masking an interrupt and then reenabling the IRQ bit in CPSR Signed-off-by:
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Lennert Buytenhek authored
Patch from Lennert Buytenhek On the ixdp2x00, the slave CPU is currently not allowed to reset itself for fear that it will do something 'funky' on the PCI bus. This fear is ungrounded -- the slave CPU is wired up such that a CPU reset will not cause a PCI bus reset to be done. This patch changes arch_reset() so that the slave CPU also executes the reset sequence, allowing it to reboot itself using /sbin/reboot. Signed-off-by:
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Lennert Buytenhek authored
Patch from Lennert Buytenhek The enp2611 version of the ixp2000 netdev driver needs to be able to access a number of on-board peripherals. ioremap() is not suitable for this, as that will cause XCB=000 mappings to be done, which will make the cpu susceptible to crashing on ixp2400 erratum #66. Properly aligned iotable mappings with MT_IXP2000_DEVICE will cause section mappings with XCB=101 to be done, which is safe. Signed-off-by:
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Wim Van Sebroeck authored
Initialise the .owner field of the device driver with the module that owns it, for easier tracking of device driver ownership. (probably also better for sysfs...) Signed-off-by:Wim Van Sebroeck <wim@iguana.be>
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Wim Van Sebroeck authored
update copyright + update bells and whistles driver for v2.6 Signed-off-by:
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