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* IXP4xx: Remove time limit for PCI TRDY to enable use of slow devices.Krzysztof Hałasa2012-11-221-0/+1
| | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* ARM: PCI: provide a default bus scan implementationRussell King2012-05-131-6/+0
| | | | | | | | | | Most PCI implementations perform simple root bus scanning. Rather than having each group of platforms provide a duplicated bus scan function, provide the PCI configuration ops structure via the hw_pci structure, and call the root bus scanning function from core ARM PCI code. Acked-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge tag 'split-asm_system_h-for-linus-20120328' of ↵Linus Torvalds2012-03-281-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ...
| * Disintegrate asm/system.h for ARMDavid Howells2012-03-281-1/+0
| | | | | | | | | | | | | | | | Disintegrate asm/system.h for ARM. Signed-off-by: David Howells <dhowells@redhat.com> cc: Russell King <linux@arm.linux.org.uk> cc: linux-arm-kernel@lists.infradead.org
* | arm/PCI: get rid of device resource fixupsBjorn Helgaas2012-02-231-2/+2
|/ | | | | | | | Tell the PCI core about host bridge address translation so it can take care of bus-to-resource conversion for us. CC: Russell King <linux@arm.linux.org.uk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* arm/PCI: convert to pci_scan_root_bus() for correct root bus resourcesBjorn Helgaas2012-01-061-4/+4
| | | | | | | | | | Convert from pci_scan_bus() to pci_scan_root_bus() and remove root bus resource fixups. This fixes the problem of "early" and "header" quirks seeing incorrect root bus resources. CC: Russell King <linux@arm.linux.org.uk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* arm: Add export.h to ARM specific files as required.Paul Gortmaker2011-10-311-0/+1
| | | | | | | These files all make use of one of the EXPORT_SYMBOL variants or the THIS_MODULE macro. So they will need <linux/export.h> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* Merge branch 'core-locking-for-linus' of ↵Linus Torvalds2011-10-261-11/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock() lockdep: Comment all warnings lib: atomic64: Change the type of local lock to raw_spinlock_t locking, lib/atomic64: Annotate atomic64_lock::lock as raw locking, x86, iommu: Annotate qi->q_lock as raw locking, x86, iommu: Annotate irq_2_ir_lock as raw locking, x86, iommu: Annotate iommu->register_lock as raw locking, dma, ipu: Annotate bank_lock as raw locking, ARM: Annotate low level hw locks as raw locking, drivers/dca: Annotate dca_lock as raw locking, powerpc: Annotate uic->lock as raw locking, x86: mce: Annotate cmci_discover_lock as raw locking, ACPI: Annotate c3_lock as raw locking, oprofile: Annotate oprofilefs lock as raw locking, video: Annotate vga console lock as raw locking, latencytop: Annotate latency_lock as raw locking, timer_stats: Annotate table_lock as raw locking, rwsem: Annotate inner lock as raw locking, semaphores: Annotate inner lock as raw locking, sched: Annotate thread_group_cputimer as raw ... Fix up conflicts in kernel/posix-cpu-timers.c manually: making cputimer->cputime a raw lock conflicted with the ABBA fix in commit bcd5cff7216f ("cputimer: Cure lock inversion").
| * locking, ARM: Annotate low level hw locks as rawThomas Gleixner2011-09-131-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | Annotate the low level hardware locks which must not be preempted. In mainline this change documents the low level nature of the lock - otherwise there's no functional difference. Lockdep and Sparse checking will work as usual. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | ARM: 7006/1: Migrate to asm-generic wrapper supportStephen Boyd2011-10-171-1/+2
|/ | | | | | | | | | | | | With d8ecc5c (kbuild: asm-generic support, 2011-04-27) we can remove a handful of asm-generic wrappers in ARM code. Since the generic version of sizes.h doesn't contain SZ_48M, we replace the 4 users of SZ_48M with the equivalent SZ_32M + SZ_16M. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Imre Kaloz <kaloz@openwrt.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Cc: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'next/cross-platform' of ↵Linus Torvalds2011-07-261-0/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: ARM: Consolidate the clkdev header files ARM: set vga memory base at run-time ARM: convert PCI defines to variables ARM: pci: make pcibios_assign_all_busses use pci_has_flag ARM: remove unnecessary mach/hardware.h includes pci: move microblaze and powerpc pci flag functions into asm-generic powerpc: rename ppc_pci_*_flags to pci_*_flags Fix up conflicts in arch/microblaze/include/asm/pci-bridge.h
| * ARM: convert PCI defines to variablesRob Herring2011-07-121-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert PCIBIOS_MIN_IO and PCIBIOS_MIN_MEM to variables to allow multi-platform builds. This also removes the requirement for a platform to have a mach/hardware.h. The default values for i/o and mem are 0x1000 and 0x01000000, respectively. Per Arnd Bergmann, other values are likely to be incorrect, but this commit does not try to address that issue. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* | ARM: dmabounce: no need to check dev->bus type in needs_bounce functionRussell King2011-07-041-1/+1
| | | | | | | | | | | | | | | | As the needs_bounce function is passed at DMA bounce register time, we already know what the device bus type is, so we don't need to check it each time the needs_bounce function is called. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: dmabounce: get rid of dma_needs_bounce global functionRussell King2011-07-041-6/+6
|/ | | | | | | | Pass the device type specific needs_bounce function in at dmabounce register time, avoiding the need for a platform specific global function to do this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizesRussell King2011-05-121-23/+0
| | | | | | | | | | | | Rather than each platform providing its own function to adjust the zone sizes, use the new ARM_DMA_ZONE_SIZE definition to perform this adjustment. This ensures that the actual DMA zone size and the ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS definitions are consistent with each other, and moves this complexity out of the platform code. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: fix IXP4xx build failureImre Kaloz2010-12-281-1/+1
| | | | | | | | | | | | | arm: export dma_set_coherent_mask While a regression was fixed with commit 710224fa2750cf (arm: fix "arm: fix pci_set_consistent_dma_mask for dmabounce devices"), a new one was introduced as dma_set_coherent_mask wasn't exported for modules. This patch takes care for this issue. Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arm: fix "arm: fix pci_set_consistent_dma_mask for dmabounce devices"FUJITA Tomonori2010-09-221-0/+8
| | | | | | | | | | | | | | | | | | | This fixes the regression caused by the commit 6fee48cd330c68 ("dma-mapping: arm: use generic pci_set_dma_mask and pci_set_consistent_dma_mask"). ARM needs to clip the dma coherent mask for dmabounce devices. This restores the old trick. Note that strictly speaking, the DMA API doesn't allow architectures to do such but I'm not sure it's worth adding the new API to set the dma mask that allows architectures to clip it. Reported-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'misc' into develRussell King2010-07-311-1/+2
|\ | | | | | | | | Conflicts: arch/arm/mm/init.c
| * ARM: 6269/1: Add 'code' parameter for hook_fault_code()Kirill A. Shutemov2010-07-271-1/+2
| | | | | | | | | | | | | | | | Add one more parameter to hook_fault_code() to be able to set 'code' field of struct fsr_info. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: Remove 'node' argument form arch_adjust_zones()Russell King2010-07-161-2/+2
|/ | | | | | | Since we no longer support discontigmem, node is always zero, so remove this argument. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* dma-mapping: arm: use generic pci_set_dma_mask and pci_set_consistent_dma_maskFUJITA Tomonori2010-03-121-26/+0
| | | | | | | | | | | | | | This converts arm to the generic pci_set_dma_mask and pci_set_consistent_dma_mask (removes HAVE_ARCH_PCI_SET_DMA_MASK for dmabounce). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Looked-over-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Greg KH <greg@kroah.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* IXP4xx: Extend PCI MMIO indirect address space to 1 GB.Krzysztof Hałasa2009-12-051-5/+1
| | | | | | | | | IXP4xx CPUs can indirectly access the whole 4 GB PCI MMIO address space (using the non-prefetch registers). Previously the available space depended on the CPU variant, since one of the IXP43x platforms needed more than the usual 128 MB. 1 GB should be enough for everyone, and if not, we can trivially increase it. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* IXP4xx: PCI ixp4xx_scan_bus() is __devinit.Krzysztof Hałasa2009-03-171-1/+1
| | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* IXP4xx: workaround for PCI prefetch problems near 64 MB boundary.Krzysztof Hałasa2009-03-171-11/+12
| | | | | | | Map unused registers at the end of DMA region at 64 MB to allow PCI masters to cross the boundary when prefetching data from SDRAM. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* [ARM] Convert asm/io.h to linux/io.hRussell King2008-09-061-1/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] cputype: separate definitions, use themRussell King2008-09-011-4/+3
| | | | | | | | Add asm/cputype.h, moving functions and definitions from asm/system.h there. Convert all users of 'processor_id' to the more efficient read_cpuid_id() function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King2008-08-071-1/+1
| | | | | | This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King2008-08-071-1/+1
| | | | | | | | | Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-03-061-1/+1
| | | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4311/1: ixp4xx: add KIXRP435 platformRuslan V. Sushko2007-04-211-2/+2
| | | | | | | | | | Add Intel KIXRP435 Reference Platform based on IXP43x processor. Fixed after review : access to cp15 removed in identification functions, used access to global processor_id instead Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com> Signed-off-by: Ruslan Sushko <rsushko@ru.mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix pci export warningsRussell King2006-08-061-2/+0
| | | | | | Remove duplicate PCI exports from ixp4xx machine class. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Convert kmalloc+memset to kzallocRussell King2006-03-211-2/+1
| | | | | | Convert all uses of kmalloc followed by memset to use kzalloc instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3218/1: PAGE_SHIFT undeclared in arch-ixp4xx/memory.h (adjust_zones ↵Rod Whitby2006-01-041-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | moved out of line) Patch from Rod Whitby PAGE_SHIFT is undeclared in include/asm-arm/arch-ixp4xx/memory.h, identified by the following kernel compilation error: CC [M] sound/core/memory.o In file included from include/asm/memory.h:27, from include/asm/io.h:28, from sound/core/memory.c:24: include/asm/arch/memory.h: In function `__arch_adjust_zones': include/asm/arch/memory.h:28: error: `PAGE_SHIFT' undeclared (first use in this function) This patch replaces my previous attempt at fixing this problem (Patch 3214/1) and is based on the following feedback: Russell King wrote: > The error you see came up on SA1100. The best solution was to move > the __arch_adjust_zones() function out of line. I suggest ixp4xx > does the same. I have moved the function out of line into arch/arm/mach-ixp4xx/common-pci.c as suggested. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3089/1: ixp4xx AHB/PCI endianness fixAlessandro Zummo2005-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Alessandro Zummo This patch fixes AHB/PCI endianness problems when the processor is in little-endian mode. The patch configures the CSR register closely following the directives in [1], paragraph 4.1, page 19. According to the considerations in [1], page 11, while the AHB bus supports both endian modes, on the IXP4XX it always uses big-endian. The PCI bus is connected to the South AHB. A wrong setting in the CSR register will thus cause a malfunctional PCI bus. A schematic diagram of the bus interconnections on the IXP4XX can be found in [1], page 18. The patch has been verified to work on the NSLU2 in both LE and BE modes. The author is Peter Korsgaard. [1] Intel® IXP4XX Product Line of Network Processors and IXC1100 Control Plane Processor: Understanding Big Endian and Little Endian Modes http://www.intel.com/design/network/applnots/25423701.pdf Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2792/1: IXP4xx iomap API implementationDeepak Saxena2005-07-061-2/+2
| | | | | | | | | | | | | | | | Patch from Deepak Saxena This patch implements the iomap API for Intel IXP4xx NPU systems. We need to implement our own version of the API functions b/c of the PCI hostbridge does not provide the capability to map PCI I/O space into the CPU's physical memory space. In addition, if a system has more than 64M of PCI memory mapped BARs, PCI memory must also be accessed indirectly. This patch changes the assignment of PCI I/O resources to fall into to 0x0000:0xffff range so that we can trap I/O areas in our ioread/iowrite macros. Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] PCI: drivers/pci/pci.c: remove pci_dac_set_dma_maskAdrian Bunk2005-05-031-10/+0
| | | | | | | pci_dac_set_dma_mask is currently completely unused. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+527
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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