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2006-12-06sh: gcc4 support.Stuart Menefy1-8/+10
This fixes up the kernel for gcc4. The existing exception handlers needed some wrapping for pt_regs access, acessing the registers via a RELOC_HIDE() pointer. The strcpy() issues popped up here too, so add -ffreestanding and kill off the symbol export. Signed-off-by: Stuart Menefy <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2006-12-06sh: Drop CPU subtype IRQ headers.Paul Mundt3-31/+36
This drops the various IRQ headers that were floating around and primarily providing hardcoded IRQ definitions for the various CPU subtypes. This quickly got to be an unmaintainable mess, made even more evident by the subtle breakage introduced by the SH-2 and SH-2A changes. Now that subtypes are able to register IRQ maps directly, just rip all of the headers out. Signed-off-by: Paul Mundt <[email protected]>
2006-12-06sh: Configurable timer IRQ.Paul Mundt1-1/+1
All of the various CPU subtypes currently hardcode TIMER_IRQ, switch this to a config option in the few places we need this. This allows further removal of hardcoded IRQ headers.. Signed-off-by: Paul Mundt <[email protected]>
2006-12-06sh: Fixup entry-common path breakage for SH-3.Paul Mundt1-1/+1
The nommu patches broke the path for the common bits, get it building for the SH-3/4 case again. Signed-off-by: Paul Mundt <[email protected]>
2006-12-06sh: Exception vector rework and SH-2/SH-2A support.Yoshinori Sato5-2/+900
This splits out common bits from the existing exception handler for use between SH-2/SH-2A and SH-3/4, and adds support for the SH-2/2A exceptions. Signed-off-by: Yoshinori Sato <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2006-12-06sh: Add support for SH7206 and SH7619 CPU subtypes.Yoshinori Sato12-12/+367
This implements initial support for the SH7206 (SH-2A) and SH7619 (SH-2) MMU-less CPUs. Signed-off-by: Yoshinori Sato <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2006-10-31sh: Fix IPR-IRQ's for IRQ-chip change breakage.Jamie Lenehan2-60/+54
The conversion from IPR-IRQ to IRQ-chip resulted in the ipr data being allocated in a local variable in make_ipr_irq - breaking anything using IPR interrupts. This changes all of the callers of make_ipr_irq to allocate a static structure containing the IPR data which is then passed to make_ipr_irq. This removes the need for make_ipr_irq to allocate any additional space for the IPR information. Signed-off-by: Jamie Lenehan <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2006-10-20sh: Convert INTC2 to IRQ table registration.Paul Mundt3-140/+114
Currently the INTC2 code contains a fixed IRQ table that it iterates through to set the handler type, we move this in to the CPU subtype setup code instead and allow for submitting the table that way. This drops the ST40 tables, as nothing has been happening with those processors, while converting the only existing users to use the new table directly (SH7760 and SH7780). Signed-off-by: Paul Mundt <[email protected]>
2006-10-19sh: Updates for irq-flow-type naming changes.Paul Mundt2-4/+6
handle_irq_name() and set_irq_chip_and_handler() disappeared, update for desc->name and set_irq_chip_and_handler_name() use. Signed-off-by: Paul Mundt <[email protected]>
2006-10-19sh: Fix exception_handling_table alignment.Paul Mundt2-2/+16
With the recent change ripping out interrupt_table, explicit padding of the table was missing, causing bad things to happen when manually inserting handlers in to the table. This problem particularly showed up in relation to do_fpu_state_restore() which was inserted quite deeply in to the table and ended up scribbling over a slab object. Signed-off-by: Paul Mundt <[email protected]>
2006-10-12sh: interrupt exception handling reworkPaul Mundt2-695/+0
Kill off interrupt_table for all of the CPU subtypes, we now default in to stepping in to do_IRQ() for _all_ IRQ exceptions and counting the spurious ones, rather than simply flipping on the ones we cared about. This and enabling the IRQ by default automatically has already uncovered a couple of bugs and IRQs that weren't being caught, as well as some that are being generated far too often (SCI Tx Data Empty, for example). The general rationale is to use a marker for interrupt exceptions, test for it in the handle_exception() path, and skip out to do_IRQ() if it's found. Everything else follows the same behaviour of finding the cached EXPEVT value in r2/r2_bank, we just rip out the INTEVT read from entry.S entirely (except for in the kGDB NMI case, which is another matter). Note that while this changes the do_IRQ() semantics regarding r4 handling, they were fundamentally broken anyways (relying entirely on r2_bank for the cached code). With this, we do the INTEVT read from do_IRQ() itself (in the CONFIG_CPU_HAS_INTEVT case), or fall back on r4 for the muxed IRQ number, which should also be closer to what SH-2 and SH-2A want anyways. Signed-off-by: Paul Mundt <[email protected]>
2006-10-06sh: Convert IPR-IRQ to IRQ chip.Paul Mundt1-75/+27
One more initial conversion.. Signed-off-by: Paul Mundt <[email protected]>
2006-10-06sh: Convert INTC2 IRQ handler to irq_chip.Paul Mundt1-114/+24
More struct irq_chip conversions, this time the INTC2 handlers. Signed-off-by: Paul Mundt <[email protected]>
2006-10-03fix file specification in commentsUwe Zeisberger1-1/+1
Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2006-09-27sh: Calculate shm alignment at runtime.Paul Mundt1-0/+5
Set the SHM alignment at runtime, based off of probed cache desc. Optimize get_unmapped_area() to only colour align shared mappings. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: More intelligent entry_mask/way_size calculation.Paul Mundt1-7/+13
Figure out the cache desc entry_mask at runtime, and remove hard-coded assumption about the cacheline size. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Support for L2 cache on newer SH-4A CPUs.Paul Mundt1-1/+46
This implements preliminary support for the L2 caches found on newer SH-4A CPUs. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: CPU flags in AT_HWCAP in ELF auxvt.Paul Mundt1-3/+5
Encode processor flags in AT_HWCAP in the ELF auxiliary vector. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Add support for 4K stacks.Paul Mundt1-0/+2
This enables support for 4K stacks on SH. Currently this depends on DEBUG_KERNEL, but likely all boards will switch to this as the default in the future. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Cleanup IRQ disabling for hardirq handlers.Paul Mundt3-18/+4
The generic hardirq layer already takes care of a lot of the appropriate locking and disabling for us, no need to duplicate it in the handlers.. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: maskreg IRQ support.Paul Mundt2-2/+102
Formerly implemented by ADX, we can use this generically, so move it over. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Kill off the rest of the legacy rtc mess.Paul Mundt3-130/+1
With the new RTC class driver, we can get rid of most of the old left over cruft. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Add support for SH7706/SH7710/SH7343 CPUs.Paul Mundt10-15/+252
This adds support for the aforementioned CPU subtypes, and cleans up some build issues encountered as a result. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Add setup code for various CPU subtypes.Paul Mundt11-0/+441
This adds some simple setup code for most of the CPU subtypes, primarily simple platform device registration. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: sem2mutex conversion for clock framework.Paul Mundt1-8/+9
Simple sem2mutex conversion. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Consolidated SH7751/SH7780 PCI support.Paul Mundt2-0/+82
This cleans up quite a lot of the PCI mess that we currently have, and attempts to consolidate the duplication in the SH7780 and SH7751 PCI controllers. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Add support for R7780RP and R7780MP boards.Paul Mundt1-3/+3
This adds support for the Renesas SH7780 development boards, R7780RP and R7780MP. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Store Queue API rework.Paul Mundt1-296/+246
Rewrite the store queue API for a per-cpu interface in the driver model. The old miscdevice is dropped, due to TASK_SIZE limitations, and no one was using it anyways. Carve up and allocate store queue space with a bitmap, back sq mapping objects with a slab cache, and let userspace worry about its own prefetching. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Add flag for MMU PTEA capability.Paul Mundt2-13/+27
Add CPU_HAS_PTEA, refactor some of the cpu flag settings. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Support for SH7770/SH7780 CPU subtypes.Paul Mundt3-0/+181
Merge support for SH7770 and SH7780 SH-4A subtypes. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Refactor PRR masking to catch newer SH7760 cuts.Paul Mundt1-3/+9
Newer SH7760 cuts have a range of acceptable PRR values.. Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Optimized cache handling for SH-4/SH-4A caches.Richard Curnow2-1/+26
This reworks some of the SH-4 cache handling code to more easily accomodate newer-style caches (particularly for the > direct-mapped case), as well as optimizing some of the old code. Signed-off-by: Richard Curnow <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2006-09-27sh: Various cosmetic cleanups.Paul Mundt2-2/+3
We had quite a bit of whitespace damage, clean most of it up.. Signed-off-by: Stuart Menefy <[email protected]> Signed-off-by: Arthur Othieno <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2006-08-06[PATCH] sh: fix proc file removal for superh store queue moduleNeil Horman1-3/+7
Clean up proc file removal in sq module for superh arch. currently on a failed module load or on module unload a proc file is left registered which can cause a random memory execution or oopses if read after unload. This patch cleans up that deregistration. Signed-off-by: Neil Horman <[email protected]> Acked-by: Paul Mundt <[email protected]> Cc: Kazumoto Kojima <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel5-5/+0
Signed-off-by: Jörn Engel <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2006-06-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6Linus Torvalds1-1/+0
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits) [PATCH] devfs: Remove it from the feature_removal.txt file [PATCH] devfs: Last little devfs cleanups throughout the kernel tree. [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree [PATCH] devfs: Remove devfs_remove() function from the kernel tree [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree [PATCH] devfs: Remove devfs support from the sound subsystem [PATCH] devfs: Remove devfs support from the ide subsystem. [PATCH] devfs: Remove devfs support from the serial subsystem [PATCH] devfs: Remove devfs from the init code [PATCH] devfs: Remove devfs from the partition code ...
2006-06-29[PATCH] genirq: rename desc->handler to desc->chipIngo Molnar4-4/+4
This patch-queue improves the generic IRQ layer to be truly generic, by adding various abstractions and features to it, without impacting existing functionality. While the queue can be best described as "fix and improve everything in the generic IRQ layer that we could think of", and thus it consists of many smaller features and lots of cleanups, the one feature that stands out most is the new 'irq chip' abstraction. The irq-chip abstraction is about describing and coding and IRQ controller driver by mapping its raw hardware capabilities [and quirks, if needed] in a straightforward way, without having to think about "IRQ flow" (level/edge/etc.) type of details. This stands in contrast with the current 'irq-type' model of genirq architectures, which 'mixes' raw hardware capabilities with 'flow' details. The patchset supports both types of irq controller designs at once, and converts i386 and x86_64 to the new irq-chip design. As a bonus side-effect of the irq-chip approach, chained interrupt controllers (master/slave PIC constructs, etc.) are now supported by design as well. The end result of this patchset intends to be simpler architecture-level code and more consolidation between architectures. We reused many bits of code and many concepts from Russell King's ARM IRQ layer, the merging of which was one of the motivations for this patchset. This patch: rename desc->handler to desc->chip. Originally i did not want to do this, because it's a big patch. But having both "desc->handler", "desc->handle_irq" and "action->handler" caused a large degree of confusion and made the code appear alot less clean than it truly is. I have also attempted a dual approach as well by introducing a desc->chip alias - but that just wasnt robust enough and broke frequently. So lets get over with this quickly. The conversion was done automatically via scripts and converts all the code in the kernel. This renaming patch is the first one amongst the patches, so that the remaining patches can stay flexible and can be merged and split up without having some big monolithic patch act as a merge barrier. [[email protected]: build fix] [[email protected]: another build fix] Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-26[PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer neededGreg Kroah-Hartman1-1/+0
Also fixes all drivers that set this field. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2006-03-31[PATCH] Don't pass boot parameters to argv_init[]OGAWA Hirofumi1-1/+1
The boot cmdline is parsed in parse_early_param() and parse_args(,unknown_bootoption). And __setup() is used in obsolete_checksetup(). start_kernel() -> parse_args() -> unknown_bootoption() -> obsolete_checksetup() If __setup()'s callback (->setup_func()) returns 1 in obsolete_checksetup(), obsolete_checksetup() thinks a parameter was handled. If ->setup_func() returns 0, obsolete_checksetup() tries other ->setup_func(). If all ->setup_func() that matched a parameter returns 0, a parameter is seted to argv_init[]. Then, when runing /sbin/init or init=app, argv_init[] is passed to the app. If the app doesn't ignore those arguments, it will warning and exit. This patch fixes a wrong usage of it, however fixes obvious one only. Signed-off-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-28[PATCH] RTC: Remove some duplicate BCD definitionsMatt Mackall1-9/+1
Remove some duplicate BCD definitions Signed-off-by: Matt Mackall <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-02-01[PATCH] sh: convert voyagergx to platform device, drop sh-busPaul Mundt2-198/+1
Trivial patch updating the voyagergx cchip code to reference a platform device instead, now that the dma mask is taken care of. Given this, there's no longer any reason to drag around the SH-bus code, so kill that off entirely. Signed-off-by: Manuel Lauss <[email protected]> Signed-off-by: Paul Mundt <[email protected]> Cc: Greg KH <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-02-01[PATCH] sh: drop maskpos from make_ipr_irq(), remove duplicate irq definitionsPaul Mundt1-30/+29
Clean up some of the subtype IRQ definitions for IPR IRQ, and consolidate the make_ipr_irq() definitions by dropping maskpos. SH-4A was the only thing interested in the maskpos, and this should be handled through INTC2 rather than IPR. Signed-off-by: Paul Mundt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-02-01[PATCH] sh: Make peripheral clock frequency setting mandatoryPaul Mundt1-12/+1
Pretty much every subtype does this now anyways, and as we depend on it in a few places being set to something sensible quite early on, it's better for a new subtype to simply set a sensible default. Signed-off-by: Paul Mundt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-16[PATCH] sh: Simplistic clock frameworkPaul Mundt12-1/+1190
This adds a relatively simplistic clock framework for sh. The initial goal behind this is to clean up the arch/sh/kernel/time.c mess and to get the CPU subtype-specific frequency setting and calculation code moved somewhere more sensible. This only deals with the core clocks at the moment, though it's trivial for other drivers to define their own clocks as desired. Signed-off-by: Paul Mundt <[email protected]> Cc: john stultz <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-16[PATCH] sh: IRQ handler updatesPaul Mundt7-414/+510
This moves the various IRQ controller drivers into a new subdirectory, and also extends the INTC2 IRQ handler to also deal with SH7760 and SH7780 interrupts, rather than just ST-40. The old CONFIG_SH_GENERIC has also been removed from the IRQ definitions, as new ports are expected to be based off of CONFIG_SH_UNKNOWN. Since there are plenty of incompatible machvecs, CONFIG_SH_GENERIC doesn't make sense anymore. Signed-off-by: Paul Mundt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-16[PATCH] sh: DMA updatesPaul Mundt1-0/+2
This extends the current SH DMA API somewhat to support a proper virtual channel abstraction, and also works to represent this through the driver model by giving each DMAC its own platform device. There's also a few other minor changes to support a few new CPU subtypes, and make TEI generation for the SH DMAC configurable. Signed-off-by: Paul Mundt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-13[PATCH] Add sh_bus_type probe and remove methodsRussell King1-17/+17
Signed-off-by: Russell King <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2005-09-10[PATCH] SH: C99 initializers for hw_interrupt_type structuresThomas Gleixner3-28/+28
Convert the initializers of hw_interrupt_type structures to C99 initializers. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2005-04-16[PATCH] fix u32 vs. pm_message_t in rest of the treePavel Machek1-1/+1
This fixes u32 vs. pm_message_t confusion in remaining places. Fortunately there's few of them. Signed-off-by: Pavel Machek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2005-04-16Linux-2.6.12-rc2Linus Torvalds19-0/+3008
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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