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2010-03-12pci-dma: sh: use include/linux/pci-dma.hFUJITA Tomonori
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-02sh: Disable generic IRQ probing.Paul Mundt
IRQ autoprobing hasn't actually worked for us at all since very early in 2.6, but no one seems to have noticed given that none of the drivers that use it see much testing. yenta_socket is the odd one out, and that depends on PCI IRQs which are fixed on all SH platforms anyways. Consequently, turning off autoprobing fixes up crashes triggered by yenta_socket and at least gets it working again on r7785rp. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-02sh: enable sparseirq for highlander and r2d.Paul Mundt
highlander and r2d are the only remaining ones that were blocking sparseirq being turned on by default, but it turns out that they already work fine with it by virtue of register_intc_controller(). As such, we can kill off the dependencies and turn it on by default. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-02sh: mach-dreamcast: Convert to sparseirq.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-02sh: hd6446x: Convert to sparseirq.Paul Mundt
Follows the se7724 change and converts the hd64461 IRQ handling to sparseirq. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-02sh: mach-se: Convert SH7724 solution engine FPGA to sparseirq.Paul Mundt
This uses the new create_irq_nr() to build up the FPGA's desired virtual IRQ mapping and permits us to finally flip on sparseirq for this board. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-29sh: support PCI domains.Paul Mundt
Newer SH parts are now commonly shipping with multiple controllers, so we wire up PCI domain support to deal with them. Shamelessly cloned from the MIPS implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-19sh: SH7786 clock framework rewrite.Paul Mundt
This rewrites the SH7786 clock framework support completely. It's reworked to provide all of the DIV4 and MSTP function clocks. This brings it in line with the current clock framework code and lets us drop SH7786 from the list of CPUs that require legacy CPG handling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-19sh: Limit ioremap_prot() to 32bit pgprot parts.Paul Mundt
Presently ioremap_prot() uses an unsigned long to pass the pgprot value around. This results in the upper half of the pgprot being chomped when using 64-bit pgprots on a 32-bit ABI (X2TLB and SH-5). As the only users of ioremap_prot() are presently legacy parts, this doesn't cause too much of an issue. In the future when the interface is converted to use pgprot_t directly this can be re-enabled for the other parts, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-13sh: Add support for LZO-compressed kernels.Paul Mundt
Plugs in LZO along with the others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-13Merge branches 'sh/xstate', 'sh/hw-breakpoints' and 'sh/stable-updates'Paul Mundt
2010-01-12sh: default to sparseirq.Paul Mundt
As SH has a very sparse IRQ map by default, all new CPUs and boards benefit from using sparseirq by default. Despite this, there are still a few stragglers (mostly due to using a fixed IRQ range for their FPGA IRQ mappings), and these still need to be converted over one by one. As these are now in the minority, and we do not want to encourage this sort of brain-damage in newer board ports, we force sparseirq on. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-06Merge branch 'master' into sh/hw-breakpointsPaul Mundt
2010-01-06sh: select HAVE_HW_BREAKPOINT for all SUPERH32 CPUs.Paul Mundt
All SH CPUs (with the exception of sh64) support the UBC, so select HW_BREAKPOINT support by default. This fixes up the build for non-SH4A targets. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-29sh: Only provide a PCLK definition for legacy CPG CPUs.Paul Mundt
As CPUs are migrated over to more fully-featured clock frameworks of their own and off of the legacy CPG code, they no longer have any real need for defining the PCLK value. The PCLK define in itself is already fairly misleading, as many boards get their input clocks from different sources, making this value fairly arbitrary anyways. Outside of the legacy CPG clock framework, the only place where this value is used is for deriving CLOCK_TICK_RATE, which we set back to the legacy PIT value that it was before the PCLK definitions were added in the first place. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-21sh: hw-breakpoint support requires perf events.Paul Mundt
This follows the x86 change to select perf events when hw_breakpoint support is enabled. This fixes up build issues where perf events can otherwise be disabled on their own. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-08Merge branch 'master' into sh/hw-breakpointsPaul Mundt
Conflict between FPU thread flag migration and debug thread flag addition. Conflicts: arch/sh/include/asm/thread_info.h arch/sh/include/asm/ubc.h arch/sh/kernel/process_32.c
2009-12-08sh: hw-breakpoints: Add preliminary support for SH-4A UBC.Paul Mundt
This adds preliminary support for the SH-4A UBC to the hw-breakpoints API. Presently only a single channel is implemented, and the ptrace interface still needs to be converted. This is the first step to cleaning up the long-standing UBC mess, making the UBC more generally accessible, and finally making it SMP safe. An additional abstraction will be layered on top of this as with the perf events code to permit the various CPU families to wire up support for their own specific UBCs, as many variations exist. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27Merge branch 'sh/stable-updates'Paul Mundt
2009-10-27sh: enable PERF_USE_VMALLOC across the board.Paul Mundt
The vast majority of SH platforms want this, and the few that don't aren't going to care one way or the other. Enable it across the board. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27sh: Kill off superfluous arch/sh/drivers/pci/Kconfig.Paul Mundt
Now that this contains a grand total of 1 Kconfig option, it's hardly worth keeping split out. Roll CONFIG_PCI back in to the top-level architecture Kconfig, along with the other bus types. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27sh: Revamp PCI DMA coherence Kconfig bits.Paul Mundt
Leaving this configurable caused more trouble than it was ever worth, so just make it explicit. Boards that are verified one way or the other can fix up their selects accordingly. We presently default to non-coherent for most platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27sh: Fix hugetlbfs dependencies for SH-3 && MMU configurations.Paul Mundt
The hugetlb dependencies presently depend on SUPERH && MMU while the hugetlb page size definitions depend on CPU_SH4 or CPU_SH5. This unfortunately allows SH-3 + MMU configurations to enable hugetlbfs without a corresponding HPAGE_SHIFT definition, resulting in the build blowing up. As SH-3 doesn't support variable page sizes, we tighten up the dependenies a bit to prevent hugetlbfs from being enabled. These days we also have a shiny new SYS_SUPPORTS_HUGETLBFS, so switch to using that rather than adding to the list of corner cases in fs/Kconfig. Reported-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-20sh: Convert to asm-generic/dma-mapping-common.hPaul Mundt
This converts the old DMA mapping support to the new generic dma-mapping-common.h abstraction. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-16sh: Kill off legacy UBC wakeup cruft.Paul Mundt
This code was added for some ancient SH-4 solution engines with peculiar boot ROMs that did silly things to the UBC MSTP bits. None of these have been in the wild for years, and these days the clock framework wraps up the MSTP bits, meaning that the UBC code is one of the few interfaces that is stomping MSTP bits underneath the clock framework. At this point the risks far outweigh any benefit this code provided, so just kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-16Merge branch 'sh/stable-updates'Paul Mundt
Conflicts: arch/sh/Kconfig
2009-10-16sh: Kill off stray HAVE_FTRACE_SYSCALLS reference.Paul Mundt
This seems to have popped back in via some merge damage. Kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-13sh: ftrace: Make code modification NMI safe.Paul Mundt
This cribs the x86 implementation of ftrace_nmi_enter() and friends to make ftrace_modify_code() NMI safe, particularly on SMP configurations. For additional notes on the problems involved, see the comment below ftrace_call_replace(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-09-21perf: Do the big rename: Performance Counters -> Performance EventsIngo Molnar
Bye-bye Performance Counters, welcome Performance Events! In the past few months the perfcounters subsystem has grown out its initial role of counting hardware events, and has become (and is becoming) a much broader generic event enumeration, reporting, logging, monitoring, analysis facility. Naming its core object 'perf_counter' and naming the subsystem 'perfcounters' has become more and more of a misnomer. With pending code like hw-breakpoints support the 'counter' name is less and less appropriate. All in one, we've decided to rename the subsystem to 'performance events' and to propagate this rename through all fields, variables and API names. (in an ABI compatible fashion) The word 'event' is also a bit shorter than 'counter' - which makes it slightly more convenient to write/handle as well. Thanks goes to Stephane Eranian who first observed this misnomer and suggested a rename. User-space tooling and ABI compatibility is not affected - this patch should be function-invariant. (Also, defconfigs were not touched to keep the size down.) This patch has been generated via the following script: FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/PERF_EVENT_/PERF_RECORD_/g' \ -e 's/PERF_COUNTER/PERF_EVENT/g' \ -e 's/perf_counter/perf_event/g' \ -e 's/nb_counters/nb_events/g' \ -e 's/swcounter/swevent/g' \ -e 's/tpcounter_event/tp_event/g' \ $FILES for N in $(find . -name perf_counter.[ch]); do M=$(echo $N | sed 's/perf_counter/perf_event/g') mv $N $M done FILES=$(find . -name perf_event.*) sed -i \ -e 's/COUNTER_MASK/REG_MASK/g' \ -e 's/COUNTER/EVENT/g' \ -e 's/\<event\>/event_id/g' \ -e 's/counter/event/g' \ -e 's/Counter/Event/g' \ $FILES ... to keep it as correct as possible. This script can also be used by anyone who has pending perfcounters patches - it converts a Linux kernel tree over to the new naming. We tried to time this change to the point in time where the amount of pending patches is the smallest: the end of the merge window. Namespace clashes were fixed up in a preparatory patch - and some stylistic fallout will be fixed up in a subsequent patch. ( NOTE: 'counters' are still the proper terminology when we deal with hardware registers - and these sed scripts are a bit over-eager in renaming them. I've undone some of that, but in case there's something left where 'counter' would be better than 'event' we can undo that on an individual basis instead of touching an otherwise nicely automated patch. ) Suggested-by: Stephane Eranian <eranian@google.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Paul Mackerras <paulus@samba.org> Reviewed-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <linux-arch@vger.kernel.org> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-16sh: Wire up HAVE_SYSCALL_TRACEPOINTS.Paul Mundt
This is necessary to get ftrace syscall tracing working again.. a fairly trivial and mechanical change. The one benefit is that this can also be enabled on sh64, despite not having its own ftrace port. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-24sh: Allow for kernel command line concatenation.Pawel Moll
So far kernel command line arguments could be passed in by a bootloader or defined as CONFIG_CMDLINE, which completely overwriting the first one. This change allows a developer to declare selected kernel parameters in a kernel configuration (eg. project-specific defconfig), retaining possibility of passing others by a bootloader. The obvious examples of the first type are MTD partition or bigphysarea-like region definitions, while "debug" option or network configuration should be given by a bootloader or a JTAG boot script. Signed-off-by: Pawel Moll <pawel.moll@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-23Merge branches 'sh/hwblk' and 'sh/pm-runtime'Paul Mundt
2009-08-23sh: let ARCH_SHMOBILE select PM and PM_RUNTIMEMagnus Damm
With the Runtime PM driver changes in place, we must have Runtime PM support in place. Otherwise there is no way to enable clocks to the Runtime PM enabled hardware blocks. This patch makes Runtime PM mandatory on SuperH Mobile. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-21sh: Add initial support for SH7757 CPU subtypeYoshihiro Shimoda
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11sh: bzip2/lzma zImage support.Paul Mundt
This plugs in bzip2 and lzma support for zImages. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-12sh: Tidy up gzip-based zImage decompression.Paul Mundt
This brings the zImage handling in to the current century, in preparation for handling the other compression types. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11Merge branches 'sh/ftrace' and 'sh/stable-updates'Paul Mundt
2009-07-11sh: Function graph tracer supportMatt Fleming
Add both dynamic and static function graph tracer support for sh. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-06Merge branches 'sh/ftrace' and 'sh/cachetlb'Paul Mundt
2009-07-06sh: Add ftrace syscall tracing supportMatt Fleming
Now that I've added TIF_SYSCALL_FTRACE the thread flags do not fit into a single byte any more. Code testing them now needs to be aware of the upper and lower bytes. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-06sh: Define HAVE_FUNCTION_TRACE_MCOUNT_TESTMatt Fleming
Enable HAVE_FUNCTION_TRACE_MCOUNT_TEST and test the value of function_trace_stop from our assembly code as opposed to using the generic C function. This should optimise our mcount/ftrace code path. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-03sh: Use bootmem ontop of lmbMatt Fleming
Rework the bootmem allocator to use the lmb framework. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-24sh: Fix up HAVE_PERF_COUNTERS typo.Paul Mundt
That's HAVE_PERF_COUNTERS not HAVE_PERF_COUNTER. This was right initially but I seem to have screwed it up while re-typing it out by hand on another machine when I checked it in. Hmph. Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-23sh: SH7786 SMP support.Paul Mundt
SH7786 is roughly identical to SH-X3 proto SMP, though there are only 2 CPUs. This just wraps in to the existing SH-X3 SMP code with some minor changes for SH7786, including wiring up the IPIs properly, enabling IRQ_PER_CPU, and so forth. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-23sh: Provide cpu_idle_wait() to fix up cpuidle/SMP build.Paul Mundt
Crib the x86 cpu_idle_wait() implementation and shove it in with the idle code, subsequently enabling ARCH_HAS_CPU_IDLE_WAIT. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-17Merge branches 'sh/pci-express-integration', 'sh/rsk-updates', ↵Paul Mundt
'sh/platform-updates' and 'sh/perf_counter'
2009-06-17sh: Generic HAVE_PERF_COUNTER support.Paul Mundt
This enables support for the generic software-based perf counters. Hardware counter support could be added in the future, but the lack of a performance counter IRQ makes this rather dubious. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-17sh: Use generic atomic64_t implementation.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-15sh: Convert sh64 to use the generic checksum code.Paul Mundt
This plugs in GENERIC_CSUM support on sh64, and kills off all of the old references. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11sh: Tie sparseirq in to Kconfig.Paul Mundt
Now that the dependent patches are merged, we are ready to enable sparseirq support. This simply adds the Kconfig option, and then converts from the _cpu to the _node allocation routines to follow the upstream sparseirq API changes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>