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path: root/drivers/pnp/resource.c
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2009-11-05vsprintf: use %pR, %pr instead of %pRt, %pRfBjorn Helgaas1-4/+4
Jesse accidentally applied v1 [1] of the patchset instead of v2 [2]. This is the diff between v1 and v2. The changes in this patch are: - tidied vsprintf stack buffer to shrink and compute size more accurately - use %pR for decoding and %pr for "raw" (with type and flags) instead of adding %pRt and %pRf [1] http://lkml.org/lkml/2009/10/6/491 [2] http://lkml.org/lkml/2009/10/13/441 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-11-04PNP: print resources consistently with %pRtBjorn Helgaas1-6/+4
This uses %pRt and %pRf to print additional resource information (type, size, prefetchability, etc.) consistently. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-05pnp: add PNP resource range checking functionBjorn Helgaas1-0/+18
Add a PNP resource range check function, indicating whether a resource has been assigned to any device. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> [apw@canonical.com: fixed up exports et al] Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2008-10-23Merge branch 'linus' into testLen Brown1-2/+2
Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16pnp: make the resource type an unsigned longRene Herman1-2/+2
PnP encodes the resource type directly as its struct resource->flags value which is an unsigned long. Make it so... Signed-off-by: Rene Herman <rene.herman@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-11PNP: convert to using pnp_dbg()Bjorn Helgaas1-6/+6
pnp_dbg() is equivalent to dev_dbg() except that we can turn it on at boot-time with the "pnp.debug" kernel parameter, so we don't have to build a new kernel image. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11PNP: fix debug formatting (cosmetic)Bjorn Helgaas1-2/+2
This patch just fixes indentation of a couple debug messages. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: avoid legacy IDE IRQsBjorn Helgaas1-11/+57
If an IDE controller is in compatibility mode, it expects to use IRQs 14 and 15, so PNP should avoid them. This patch should resolve this problem report: parallel driver grabs IRQ14 preventing legacy SFF ATA controller from working https://bugzilla.novell.com/show_bug.cgi?id=375836 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-17PNP: convert resource options to single linked listBjorn Helgaas1-203/+65
ISAPNP, PNPBIOS, and ACPI describe the "possible resource settings" of a device, i.e., the possibilities an OS bus driver has when it assigns I/O port, MMIO, and other resources to the device. PNP used to maintain this "possible resource setting" information in one independent option structure and a list of dependent option structures for each device. Each of these option structures had lists of I/O, memory, IRQ, and DMA resources, for example: dev independent options ind-io0 -> ind-io1 ... ind-mem0 -> ind-mem1 ... ... dependent option set 0 dep0-io0 -> dep0-io1 ... dep0-mem0 -> dep0-mem1 ... ... dependent option set 1 dep1-io0 -> dep1-io1 ... dep1-mem0 -> dep1-mem1 ... ... ... This data structure was designed for ISAPNP, where the OS configures device resource settings by writing directly to configuration registers. The OS can write the registers in arbitrary order much like it writes PCI BARs. However, for PNPBIOS and ACPI devices, the OS uses firmware interfaces that perform device configuration, and it is important to pass the desired settings to those interfaces in the correct order. The OS learns the correct order by using firmware interfaces that return the "current resource settings" and "possible resource settings," but the option structures above doesn't store the ordering information. This patch replaces the independent and dependent lists with a single list of options. For example, a device might have possible resource settings like this: dev options ind-io0 -> dep0-io0 -> dep1->io0 -> ind-io1 ... All the possible settings are in the same list, in the order they come from the firmware "possible resource settings" list. Each entry is tagged with an independent/dependent flag. Dependent entries also have a "set number" and an optional priority value. All dependent entries must be assigned from the same set. For example, the OS can use all the entries from dependent set 0, or all the entries from dependent set 1, but it cannot mix entries from set 0 with entries from set 1. Prior to this patch PNP didn't keep track of the order of this list, and it assigned all independent options first, then all dependent ones. Using the example above, that resulted in a "desired configuration" list like this: ind->io0 -> ind->io1 -> depN-io0 ... instead of the list the firmware expects, which looks like this: ind->io0 -> depN-io0 -> ind-io1 ... Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: rename pnp_register_*_resource() local variablesBjorn Helgaas1-47/+47
No functional change; just rename "data" to something more descriptive. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: centralize resource option allocationsBjorn Helgaas1-8/+46
This patch moves all the option allocations (pnp_mem, pnp_port, etc) into the pnp_register_{mem,port,irq,dma}_resource() functions. This will make it easier to rework the option data structures. The non-trivial part of this patch is the IRQ handling. The backends have to allocate a local pnp_irq_mask_t bitmap, populate it, and pass a pointer to pnp_register_irq_resource(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: increase I/O port & memory option address sizesBjorn Helgaas1-4/+10
ACPI Address Space Descriptors can be up to 64 bits wide. We should keep track of the whole thing when parsing resource options, so this patch changes PNP port and mem option fields from "unsigned short" and "unsigned int" to "resource_size_t". Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: introduce pnp_irq_mask_t typedefBjorn Helgaas1-3/+3
This adds a typedef for the IRQ bitmap, which should cause no functional change, but will make it easier to pass a pointer to a bitmap to pnp_register_irq_resource(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: add pnp_possible_config() -- can a device could be configured this way?Bjorn Helgaas1-0/+62
As part of a heuristic to identify modem devices, 8250_pnp.c checks to see whether a device can be configured at any of the legacy COM port addresses. This patch moves the code that traverses the PNP "possible resource options" from 8250_pnp.c to the PNP subsystem. This encapsulation is important because a future patch will change the implementation of those resource options. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-17PNP: remove ratelimit on add resource failuresBjorn Helgaas1-26/+8
We used to have a fixed-size resource table. If a device had twenty resources when the table only had space for ten, we didn't need ten warnings, so we added the ratelimit. Now that we can dynamically allocate new resources, we should only get failures if the allocation fails. That should be rare enough that we don't need to ratelimit the messages. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-17PNP: replace pnp_resource_table with dynamically allocated resourcesBjorn Helgaas1-68/+18
PNP used to have a fixed-size pnp_resource_table for tracking the resources used by a device. This table often overflowed, so we've had to increase the table size, which wastes memory because most devices have very few resources. This patch replaces the table with a linked list of resources where the entries are allocated on demand. This removes messages like these: pnpacpi: exceeded the max number of IO resources 00:01: too many I/O port resources References: http://bugzilla.kernel.org/show_bug.cgi?id=9535 http://bugzilla.kernel.org/show_bug.cgi?id=9740 http://lkml.org/lkml/2007/11/30/110 This patch also changes the way PNP uses the IORESOURCE_UNSET, IORESOURCE_AUTO, and IORESOURCE_DISABLED flags. Prior to this patch, the pnp_resource_table entries used the flags like this: IORESOURCE_UNSET This table entry is unused and available for use. When this flag is set, we shouldn't look at anything else in the resource structure. This flag is set when a resource table entry is initialized. IORESOURCE_AUTO This resource was assigned automatically by pnp_assign_{io,mem,etc}(). This flag is set when a resource table entry is initialized and cleared whenever we discover a resource setting by reading an ISAPNP config register, parsing a PNPBIOS resource data stream, parsing an ACPI _CRS list, or interpreting a sysfs "set" command. Resources marked IORESOURCE_AUTO are reinitialized and marked as IORESOURCE_UNSET by pnp_clean_resource_table() in these cases: - before we attempt to assign resources automatically, - if we fail to assign resources automatically, - after disabling a device IORESOURCE_DISABLED Set by pnp_assign_{io,mem,etc}() when automatic assignment fails. Also set by PNPBIOS and PNPACPI for: - invalid IRQs or GSI registration failures - invalid DMA channels - I/O ports above 0x10000 - mem ranges with negative length After this patch, there is no pnp_resource_table, and the resource list entries use the flags like this: IORESOURCE_UNSET This flag is no longer used in PNP. Instead of keeping IORESOURCE_UNSET entries in the resource list, we remove entries from the list and free them. IORESOURCE_AUTO No change in meaning: it still means the resource was assigned automatically by pnp_assign_{port,mem,etc}(), but these functions now set the bit explicitly. We still "clean" a device's resource list in the same places, but rather than reinitializing IORESOURCE_AUTO entries, we just remove them from the list. Note that IORESOURCE_AUTO entries are always at the end of the list, so removing them doesn't reorder other list entries. This is because non-IORESOURCE_AUTO entries are added by the ISAPNP, PNPBIOS, or PNPACPI "get resources" methods and by the sysfs "set" command. In each of these cases, we completely free the resource list first. IORESOURCE_DISABLED In addition to the cases where we used to set this flag, ISAPNP now adds an IORESOURCE_DISABLED resource when it reads a configuration register with a "disabled" value. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-17PNP: add pnp_resource_type() internal interfaceBjorn Helgaas1-0/+6
Given a struct resource, this returns the type (IO, MEM, IRQ, DMA). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-05-15pnp: add pnp_build_option() to the APIRene Herman1-1/+1
The subsequent AD181x quirk patch would like this as part of the API. pnp_register_dependent_option() adds to the same dependent chain the quirk is walking which is fairly unclean. This enables a private option chain build which it can then just add onto the end when done. Signed-off-by: Rene Herman <rene.herman@gmail.com> Tested-by: Uwe Bugla <uwe.bugla@gmx.de> Acked-by: Uwe Bugla <uwe.bugla@gmx.de> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Len Brown <len.brown@intel.com Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29PNP: make generic pnp_add_mem_resource()Bjorn Helgaas1-0/+29
Add a pnp_add_mem_resource() that can be used by all the PNP backends. This consolidates a little more pnp_resource_table knowledge into one place. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: make generic pnp_add_io_resource()Bjorn Helgaas1-0/+29
Add a pnp_add_io_resource() that can be used by all the PNP backends. This consolidates a little more pnp_resource_table knowledge into one place. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: make generic pnp_add_dma_resource()Bjorn Helgaas1-0/+26
Add a pnp_add_dma_resource() that can be used by all the PNP backends. This consolidates a little more pnp_resource_table knowledge into one place. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: make generic pnp_add_irq_resource()Bjorn Helgaas1-0/+26
Add a pnp_add_irq_resource() that can be used by all the PNP backends. This consolidates a little more pnp_resource_table knowledge into one place. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: add pnp_new_resource() to find a new unset pnp_resourceBjorn Helgaas1-0/+38
This encapsulates the code to locate a new pnp_resource of the desired type. Currently this uses the pnp_resource_table, but it will soon change to find a resource in a linked list. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: add pnp_get_pnp_resource()Bjorn Helgaas1-6/+18
In some places, we need to get the struct pnp_resource, not just the struct resource, because ISAPNP needs to store the register index in the pnp_resource. I don't like pnp_get_pnp_resource() and hope that it is temporary, but we need it for a little while. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: add struct pnp_resourceBjorn Helgaas1-4/+4
This patch adds a "struct pnp_resource". This currently contains only a struct resource, but we will soon need additional PNP-specific information. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: make pnp_resource_table private to PNP coreBjorn Helgaas1-1/+1
There are no remaining references to the PNP_MAX_* constants or the pnp_resource_table structure outside of the PNP core. Make them private to the PNP core. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: remove PNP_MAX_* usesBjorn Helgaas1-24/+24
Remove some PNP_MAX_* uses. The pnp_resource_table isn't dynamic yet, but with pnp_get_resource(), we can start moving away from the table size constants. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: convert resource checks to use pnp_get_resource(), not pnp_resource_tableBjorn Helgaas1-16/+16
This removes more direct references to pnp_resource_table. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: pass resources, not indexes, to pnp_check_port(), et alBjorn Helgaas1-12/+8
The caller already has the struct resource pointer, so no need for pnp_check_port(), pnp_check_mem(), etc., to look it up again. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: check for conflicts with all resources, not just earlier onesBjorn Helgaas1-8/+8
This patch removes a use of "idx" in pnp_check_port() and similar functions, in preparation for replacing idx with a pointer to the resource itself. I split this out because it changes the behavior slightly: we used to check for conflicts only with earlier resources, e.g., we checked resource 2 against resources 0 and 1 but not against 3, 4, etc. Now we will check against all resources except 2. Since resources are assigned in ascending order, the old behavior was probably safe, but I don't like to depend on that ordering. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: reduce redundancy in pnp_check_port() and othersBjorn Helgaas1-38/+54
Use a temporary "res" pointer to replace repeated lookups in the pnp resource tables. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: use conventional "i" for loop indicesBjorn Helgaas1-46/+46
Cosmetic only: just use "i" instead of "tmp". Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: add pnp_get_resource() interfaceBjorn Helgaas1-0/+27
This adds a pnp_get_resource() that works the same way as platform_get_resource(). This will enable us to consolidate many pnp_resource_table references in one place, which will make it easier to make the table dynamic. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-29PNP: add debug output to option registrationBjorn Helgaas1-4/+30
Add debug output to resource option registration functions (enabled by CONFIG_PNP_DEBUG). This uses dev_printk, so I had to add pnp_dev arguments at the same time. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-29drivers/pnp/resource.c: Add missing pci_dev_putJulia Lawall1-1/+3
There should be a pci_dev_put when breaking out of a loop that iterates over calls to pci_get_device and similar functions. This was fixed using the following semantic patch. // <smpl> @@ identifier d; type T; expression e; iterator for_each_pci_dev; @@ T *d; ... for_each_pci_dev(d) {... when != pci_dev_put(d) when != e = d ( return d; | + pci_dev_put(d); ? return ...; ) ...} // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Greg KH <greg@kroah.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17PNP: use dev_info(), dev_err(), etc in coreBjorn Helgaas1-1/+1
If we have the struct pnp_dev available, we can use dev_info(), dev_err(), etc., to give a little more information and consistency. [akpm@linux-foundation.org: fix warning] Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela1-1/+1
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-08-24PNP: remove null pointer checksBjorn Helgaas1-26/+0
Remove some null pointer checks. Null pointers in these areas indicate programming errors, and I think it's better to oops immediately rather than return an error that is easily ignored. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-07-26PNP: fix up after LindentBjorn Helgaas1-20/+13
These are manual fixups after running Lindent. No functional change. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26PNP: Lindent all source filesBjorn Helgaas1-39/+40
Run Lindent on all PNP source files. Produced by: $ quilt new pnp-lindent $ find drivers/pnp -name \*.[ch] | xargs quilt add $ quilt add include/linux/{pnp.h,pnpbios.h} $ scripts/Lindent drivers/pnp/*.c drivers/pnp/*/*.c include/linux/pnp*.h $ quilt refresh --sort Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells1-1/+1
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)
2006-07-03[PATCH] irq-flags: misc drivers: Use the new IRQF_ constantsThomas Gleixner1-1/+1
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>
2006-07-01[PATCH] pnp: suppress request_irq() warningAndrew Morton1-1/+2
Suppress the "setup_irq: irq handler mismatch" coming out of pnp_check_irq(): failures are expected here. Cc: <stable@kernel.org> Cc: Santiago Garcia Mantinan <manty@manty.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-27[PATCH] 64bit resource: change pnp core to use resource_size_tGreg Kroah-Hartman1-4/+4
Based on a patch series originally from Vivek Goyal <vgoyal@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-07[PATCH] drivers/pnp/: cleanupsAdrian Bunk1-0/+2
This patch contains the following possible cleanups: - make needlessly global code static - #if 0 the following unused global function: - core.c: pnp_remove_device - #if 0 the following unneeded EXPORT_SYMBOL's: - card.c: pnp_add_card - card.c: pnp_remove_card - card.c: pnp_add_card_device - card.c: pnp_remove_card_device - card.c: pnp_add_card_id - core.c: pnp_register_protocol - core.c: pnp_unregister_protocol - core.c: pnp_add_device - core.c: pnp_remove_device - pnpacpi/core.c: pnpacpi_protocol - driver.c: pnp_add_id - isapnp/core.c: isapnp_read_byte - manager.c: pnp_auto_config_dev - resource.c: pnp_register_dependent_option - resource.c: pnp_register_independent_option - resource.c: pnp_register_irq_resource - resource.c: pnp_register_dma_resource - resource.c: pnp_register_port_resource - resource.c: pnp_register_mem_resource Note that this patch #if 0's exactly one functions and removes no functions. Most it does is the #if 0 of EXPORT_SYMBOL's, so if any modular code will use any of them, re-adding will be trivial. Modular ISAPnP might be interesting in some cases, but this is more legacy code. If someone would work on it to sort all the issues out (starting with the point that most users of __ISAPNP__ will have to be fixed) re-enabling the required EXPORT_SYMBOL's won't be hard for him. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12[ACPI] PNPACPI vs sound IRQDavid Shaohua Li1-1/+1
http://bugme.osdl.org/show_bug.cgi?id=4016 Written-by: David Shaohua Li <shaohua.li@intel.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+542
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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