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* [PATCH] sparc64 pt_regs fixesAl Viro2006-10-081-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SPARC64] Fix PSYCHO PCI controler init.Marc Zyngier2006-07-141-1/+2
| | | | | | | | | pbm->name should be initialized before calling pbm_register_toplevel_resources. Move the call a few lines down to avoid a nice Oops. Signed-off-by: Marc Zyngier <maz@misterjones.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64] psycho: Fix pbm->name handling in pbm_register_toplevel_resources()David S. Miller2006-07-141-3/+0
| | | | | | | | | We shouldn't overwrite it, it's the device node full name already and that's what we want. Based upon a report from Marc Zyngier. Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] irq-flags: SPARC64: Use the new IRQF_ constantsThomas Gleixner2006-07-021-4/+4
| | | | | | | | | | | Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SPARC64]: of_device layer IRQ resolutionDavid S. Miller2006-06-291-141/+20
| | | | | | | | | | | | | | | | | | Do IRQ determination generically by parsing the PROM properties, and using IRQ controller drivers for final resolution. One immediate positive effect is that all of the IRQ frobbing in the EBUS, ISA, and PCI controller layers has been eliminated. We just look up the of_device and use the properly computed value. The PCI controller irq_build() routines are gone and no longer used. Unfortunately sbus_build_irq() has to remain as there is a direct reference to this in the sunzilog driver. That can be killed off once the sparc32 side of this is written and the sunzilog driver is transformed into an "of" bus driver. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Kill starfire_cookie from SBUS/PCI.David S. Miller2006-06-291-3/+1
| | | | | | | | | Totally unused. We need to traverse the list of global IRQ translaters, so storing it in the per-bus structures was useless. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Convert sparc64 PCI layer to in-kernel device tree.David S. Miller2006-06-231-1/+1
| | | | | | | | One thing this change pointed out was that we really should pull the "get 'local-mac-address' property" logic into a helper function all the network drivers can call. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Use in-kernel OBP device tree for PCI controller probing.David S. Miller2006-06-231-58/+50
| | | | | | It can be pushed even further down, but this is a first step. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Move over to GENERIC_HARDIRQS.David S. Miller2006-06-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This is the long overdue conversion of sparc64 over to the generic IRQ layer. The kernel image is slightly larger, but the BSS is ~60K smaller due to the reduced size of struct ino_bucket. A lot of IRQ implementation details, including ino_bucket, were moved out of asm-sparc64/irq.h and are now private to arch/sparc64/kernel/irq.c, and most of the code in irq.c totally disappeared. One thing that's different at the moment is IRQ distribution, we do it at enable_irq() time. If the cpu mask is ALL then we round-robin using a global rotating cpu counter, else we pick the first cpu in the mask to support single cpu targetting. This is similar to what powerpc's XICS IRQ support code does. This works fine on my UP SB1000, and the SMP build goes fine and runs on that machine, but lots of testing on different setups is needed. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Virtualize IRQ numbers.David S. Miller2006-06-201-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Inspired by PowerPC XICS interrupt support code. All IRQs are virtualized in order to keep NR_IRQS from needing to be too large. Interrupts on sparc64 are arbitrary 11-bit values, but we don't need to define NR_IRQS to 2048 if we virtualize the IRQs. As PCI and SBUS controller drivers build device IRQs, we divy out virtual IRQ numbers incrementally starting at 1. Zero is a special virtual IRQ used for the timer interrupt. So device drivers all see virtual IRQs, and all the normal interfaces such as request_irq(), enable_irq(), etc. translate that into a real IRQ number in order to configure the IRQ. At this point knowledge of the struct ino_bucket is almost entirely contained within arch/sparc64/kernel/irq.c There are a few small bits in the PCI controller drivers that need to be swept away before we can remove ino_bucket's definition out of asm-sparc64/irq.h and privately into kernel/irq.c Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Kill ino_bucket->pilDavid S. Miller2006-06-201-75/+2
| | | | | | | | | | | And reuse that struct member for virt_irq, which will be used in future changesets for the implementation of mapping between real and virtual IRQ numbers. This nicely kills off a ton of SBUS and PCI controller PIL assignment code which is no longer necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Fix new context version SMP handling.David S. Miller2006-03-201-7/+7
| | | | | | | | | | | | | | | | 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]: kzalloc() conversionEric Sesterhenn2006-03-201-6/+3
| | | | | | | | 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]: Consolidate common PCI IOMMU init code.David S. Miller2005-10-131-39/+5
| | | | | | | All the PCI controller drivers were doing the same thing setting up the IOMMU software state, put it all in one spot. Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] Make sparc64 use setup-res.cDavid S. Miller2005-09-081-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There were three changes necessary in order to allow sparc64 to use setup-res.c: 1) Sparc64 roots the PCI I/O and MEM address space using parent resources contained in the PCI controller structure. I'm actually surprised no other platforms do this, especially ones like Alpha and PPC{,64}. These resources get linked into the iomem/ioport tree when PCI controllers are probed. So the hierarchy looks like this: iomem --| PCI controller 1 MEM space --| device 1 device 2 etc. PCI controller 2 MEM space --| ... ioport --| PCI controller 1 IO space --| ... PCI controller 2 IO space --| ... You get the idea. The drivers/pci/setup-res.c code allocates using plain iomem_space and ioport_space as the root, so that wouldn't work with the above setup. So I added a pcibios_select_root() that is used to handle this. It uses the PCI controller struct's io_space and mem_space on sparc64, and io{port,mem}_resource on every other platform to keep current behavior. 2) quirk_io_region() is buggy. It takes in raw BUS view addresses and tries to use them as a PCI resource. pci_claim_resource() expects the resource to be fully formed when it gets called. The sparc64 implementation would do the translation but that's absolutely wrong, because if the same resource gets released then re-claimed we'll adjust things twice. So I fixed up quirk_io_region() to do the proper pcibios_bus_to_resource() conversion before passing it on to pci_claim_resource(). 3) I was mistakedly __init'ing the function methods the PCI controller drivers provide on sparc64 to implement some parts of these routines. This was, of course, easy to fix. So we end up with the following, and that nasty SPARC64 makefile ifdef in drivers/pci/Makefile is finally zapped. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [SPARC64]: Fix IRQ retry interval timer value on sparc64 PCI controllers.David S. Miller2005-07-041-2/+1
| | | | | | Use '5' instead of 'infinity'. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Fix streaming buffer flushing on PCI and SBUS.David S. Miller2005-05-311-1/+1
| | | | | | | | | | | | | Firstly, if the direction is TODEVICE, then dirty data in the streaming cache is impossible so we can elide the flush-flag synchronization in that case. Next, the context allocator is broken. It is highly likely that contexts get used multiple times for different dma mappings, which confuses the strbuf flushing code and makes it run inefficiently. Signed-off-by: David S. Miller <davem@davemloft.net>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+1560
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!
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