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2007-09-11Fix DAC960 driver on machines which don't support 64-bit DMAMatthew Wilcox1-7/+0
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8942 Use PCI_DMA_* constants instead of own private definitions Fall back to 32-bit DMA mask if a 64-bit one fails Signed-off-by: Matthew Wilcox <matthew@wil.cx> Acked-by: Jeff Garzik <jeff@garzik.org> Tested-by: Lars <polynomial-c@gmx.de> Cc: Alessandro Polverini <alex@nibbles.it> Cc: <dac@conglom-o.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] drivers/block/DAC960: convert 'boolean' to 'bool'Richard Knutsson1-251/+244
Converts 'boolean' to 'bool' and removes the 'boolean' typedef. Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se> Cc: Jens Axboe <axboe@suse.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-10-11[PATCH] DAC960: use memmove for overlapping areasAlexey Dobriyan1-2/+2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells1-7/+7
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-01[PATCH] Generic booleanRichard Knutsson1-1/+1
This patch defines: * a generic boolean-type, named 'bool' * aliases to 0 and 1, named 'false' and 'true' Removing colliding definitions of 'bool', 'false' and 'true'. Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] DAC960: add support for Mylex AcceleRAID 4/5/600Christoph Hellwig1-1/+316
This patch adds support for a new class of DAC960 controllers. It's based on the GPLed idac320 driver from IBM for Linux 2.4.18. That driver is a fork of the 2.4.18 version of DAC960 that adds support for this new type of controllers (internally called "GEM Series"), that differ from other DAC960 V2 firmware controllers only in the register offsets and removes support for all others. This patch instead integrates support for these controllers into the DAC960 driver. Thanks to Anders Norrbring for pointing me to the idac320 driver and testing this patch. No Signed-Off: line because all code is either copy & pasted from IBM's idac320 driver or support for other controllers in the 2.6 DAC960 driver. Note: the really odd formating matches the rest of the DAC960 driver. Cc: Dave Olien <dmo@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+4114
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!