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* sh: Support SCHED_MC for SH-X3 multi-cores.Paul Mundt2009-10-161-0/+8
| | | | | | | | | This enables SCHED_MC support for SH-X3 multi-cores. Presently this is just a simple wrapper around the possible map, but this allows for tying in support for some of the more exotic NUMA clusters where we can actually do something with the topology. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Idle loop chainsawing for SMP-based light sleep.Paul Mundt2009-10-161-0/+4
| | | | | | | | | | | | | | | | | | This does a bit of chainsawing of the idle loop code to get light sleep working on SMP. Previously this was forcing secondary CPUs in to sleep mode with them not coming back if they didn't have their own local timers. Given that we use clockevents broadcasting by default, the CPU managing the clockevents can't have IRQs disabled before entering its sleep state. This unfortunately leaves us with the age-old need_resched() race in between local_irq_enable() and cpu_sleep(), but at present this is unavoidable. After some more experimentation it may be possible to layer on SR.BL bit manipulation over top of this scheme to inhibit the race condition, but given the current potential for missing wakeups, this is left as a future exercise. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Count NMIs in irq_cpustat_t.Paul Mundt2009-10-141-3/+10
| | | | | | | This plugs in support for NMI counting per-CPU via irq_cpustat_t. Modelled after the x86 implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: TS_RESTORE_SIGMASK conversion.Paul Mundt2009-10-141-4/+22
| | | | | | | | | | | Replace TIF_RESTORE_SIGMASK with TS_RESTORE_SIGMASK and define our own set_restore_sigmask() function. This saves the costly SMP-safe set_bit operation, which we do not need for the sigmask flag since TIF_SIGPENDING always has to be set too. Based on the x86 and powerpc change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Provide CALLER_ADDRx definitions even when ftrace is disabled.Paul Mundt2009-10-141-1/+5
| | | | | | | | | Despite being located in the ftrace header, the CALLER_ADDRx definitions are used by generic code. As such, we have to provide it generically, and given that there is no real dependence on ftrace in the first place, the definitions can just be moved out. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Tidy up the dwarf module helpers.Paul Mundt2009-10-131-2/+9
| | | | | | | | | This enables us to build the dwarf unwinder both with modules enabled and disabled in addition to reducing code size in the latter case. The helpers are also consolidated, and modified to resemble the BUG module helpers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Generalize CALLER_ADDRx support.Paul Mundt2009-10-132-42/+13
| | | | | | | | | | | | | | | | | | This splits out the unwinder implementation and adds a new return_address() abstraction modelled after the ARM code. The DWARF unwinder is tied in to this, returning NULL otherwise in the case of being unable to support arbitrary depths. This enables us to get correct behaviour with the unwinder enabled, as well as disabling the arbitrary depth support when frame pointers are enabled, as arbitrary depths with __builtin_return_address() are not supported regardless. With this abstraction it's also possible to layer on a simplified implementation with frame pointers in the event that the unwinder isn't enabled, although this is left as a future exercise. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'sh/ftrace' of git://github.com/mfleming/linux-2.6Paul Mundt2009-10-131-0/+47
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| * sh: tracing: Use the DWARF unwinder for CALLER_ADDRxMatt Fleming2009-10-111-0/+47
| | | | | | | | | | | | | | | | The major reason for implementing the DWARF unwinder in the first place was so that we could stop using __builtin_return_address(n), which doesn't work on SH for n > 0. Signed-off-by: Matt Fleming <matt@console-pimps.org>
* | Merge branch 'sh/dwarf-unwinder'Paul Mundt2009-10-121-0/+16
|\ \ | | | | | | | | | | | | Conflicts: arch/sh/kernel/dwarf.c
| * \ Merge branch 'sh/dwarf-unwinder' of git://github.com/mfleming/linux-2.6 into ↵Paul Mundt2009-10-121-0/+16
| |\ \ | | | | | | | | | | | | sh/dwarf-unwinder
| | * | sh: Fix memory leak in dwarf_unwind_stack()Matt Fleming2009-10-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If we broke out of the while (1) loop because the return address of "frame" was zero, then "frame" needs to be free'd before we return. Signed-off-by: Matt Fleming <matt@console-pimps.org>
| | * | sh: Teach the DWARF unwinder about modulesMatt Fleming2009-10-111-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass a module's .eh_frame section to the DWARF unwinder at module load time so that the section's FDEs and CIEs can be registered with the DWARF unwinder. This allows us to unwind the stack through module code when generating backtraces. Signed-off-by: Matt Fleming <matt@console-pimps.org>
* | | | sh: Shut up CONFIG_32BIT=n compiler warnings.Paul Mundt2009-10-101-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | sh: Fold fixed-PMB support into dynamic PMB supportMatt Fleming2009-10-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The initialisation process differs for CONFIG_PMB and for CONFIG_PMB_FIXED. For CONFIG_PMB_FIXED we need to register the PMB entries that were allocated by the bootloader. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | sh: Remap physical memory into P1 and P2 in pmb_init()Matt Fleming2009-10-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eventually we'll have complete control over what physical memory gets mapped where and we can probably do other interesting things. For now though, when the MMU is in 32-bit mode, we map physical memory into the P1 and P2 virtual address ranges with the same semantics as they have in 29-bit mode. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | sh: Make most PMB functions staticMatt Fleming2009-10-101-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to export the internal PMB functions for allocating, freeing and modifying PMB entries, etc. This way we can restrict the interface for PMB. Also remove the static from pmb_init() so that we have more freedom in setting up the initial PMB entries and turning on MMU 32bit mode. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | sh: Prepare for dynamic PMB supportMatt Fleming2009-10-105-7/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To allow the MMU to be switched between 29bit and 32bit mode at runtime some constants need to swapped for functions that return a runtime value. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | sh: Obliterate the P1 area macrosMatt Fleming2009-10-101-3/+0
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the use of PHYSADDR() with __pa(). PHYSADDR() is based on the idea that all addresses in P1SEG are untranslated, so we can access an address's physical page as an offset from P1SEG. This doesn't work for CONFIG_PMB/CONFIG_PMB_FIXED because pages in P1SEG and P2SEG are used for PMB mappings and so can be translated to any physical address. Likewise, replace a P1SEGADDR() use with virt_to_phys(). Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | Merge branch 'sh/cachetlb'Paul Mundt2009-10-101-3/+3
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| * | | sh: Factor in cpu id for selection of cache colour fixmap.Paul Mundt2009-09-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the SMP VIPT case the page copy/clear ops still perform colouring, care needs to be taken that CPUs don't end up stepping on each other, so we give them a bit of room to work with. At the same time, we reduce the worst-case colouring given that these pages are always consumed. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds2009-09-241-0/+13
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://neil.brown.name/md: (97 commits) md: raid-1/10: fix RW bits manipulation md: remove unnecessary memset from multipath. md: report device as congested when suspended md: Improve name of threads created by md_register_thread md: remove sparse warnings about lock context. md: remove sparse waring "symbol xxx shadows an earlier one" async_tx/raid6: add missing dma_unmap calls to the async fail case ioat3: fix uninitialized var warnings drivers/dma/ioat/dma_v2.c: fix warnings raid6test: fix stack overflow ioat2: clarify ring size limits md/raid6: cleanup ops_run_compute6_2 md/raid6: eliminate BUG_ON with side effect dca: module load should not be an error message ioat: driver version 4.0 dca: registering requesters in multiple dca domains async_tx: remove HIGHMEM64G restriction dmaengine: sh: Add Support SuperH DMA Engine driver dmaengine: Move all map_sg/unmap_sg for slave channel to its client fsldma: Add DMA_SLAVE support ...
| * \ \ \ Merge branch 'next' of ↵NeilBrown2009-09-231-0/+13
| |\ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into for-linus
| | * | | | dmaengine: sh: Add Support SuperH DMA Engine driverNobuhiro Iwamatsu2009-09-081-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This supported all DMA channels, and it was tested in SH7722, SH7780, SH7785 and SH7763. This can not use with SH DMA API. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | | | | | cpumask: remove arch_send_call_function_ipiRusty Russell2009-09-241-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now everyone is converted to arch_send_call_function_ipi_mask, remove the shim and the #defines. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | | | | cpumask: remove obsolete node_to_cpumask now everyone uses cpumask_of_nodeRusty Russell2009-09-241-1/+0
|/ / / / / | | | | | | | | | | | | | | | Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | | | perf: Do the big rename: Performance Counters -> Performance EventsIngo Molnar2009-09-214-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2009-09-1859-423/+1629
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits) sh: mach-ecovec24: Add user debug switch support sh: Kill off unused se_skipped in alignment trap notification code. sh: Wire up HAVE_SYSCALL_TRACEPOINTS. video: sh_mobile_lcdcfb: use both register sets for display panning video: sh_mobile_lcdcfb: implement display panning sh: Fix up sh7705 flush_dcache_page() build. sh: kfr2r09: document the PLL/FLL <-> RF relationship. sh: mach-ecovec24: need asm/clock.h. sh: mach-ecovec24: deassert usb irq on boot. sh: Add KEYSC support for EcoVec24 sh: add kycr2_delay for sh_keysc sh: cpufreq: Include CPU id in info messages. sh: multi-evt support for SH-X3 proto CPU. sh: clkfwk: remove bogus set_bus_parent() from SH7709. sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300) sh: Add EcoVec24 romImage defconfig sh: USB disable process is needed if romImage boot for EcoVec24 sh: EcoVec24: add HIZA setting for LED sh: EcoVec24: write MAC address in boot sh: Add romImage support for EcoVec24 ...
| * | | | | sh: Wire up HAVE_SYSCALL_TRACEPOINTS.Paul Mundt2009-09-161-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | | | Merge branch 'master' of ↵Paul Mundt2009-09-161-0/+3
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/sh/kernel/vmlinux.lds.S
| * | | | | | sh: kfr2r09: document the PLL/FLL <-> RF relationship.Kuninori Morimoto2009-09-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Early clock initialization sets up PLL/FLL values for optimal RF behaviour. As this relationship is presently undocumented, we document this in the script so the rationale is apparent. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | sh: add kycr2_delay for sh_keyscKuninori Morimoto2009-09-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After KYCR2 is set, udelay might become necessary if there are only a small number of keys attached. This patch introduces an optional delay through the platform data to address this problem. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | sh: USB disable process is needed if romImage boot for EcoVec24Kuninori Morimoto2009-09-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when you use romImage on EcoVec24, 1st Linux will enable USB device. But no-one disable it. So re-started Linux will get interrupt before USB driver is attached. This patch disable USB device at first Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | sh: Add romImage support for EcoVec24Kuninori Morimoto2009-09-112-0/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | sh: add romimage-macros.hKuninori Morimoto2009-09-112-69/+74
| | |_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | romimage macros which are used in kfr2r09 is very useful for other board. This patch divides kfr2r09's romimage.h into romimage-macros and partner-jet-setup. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: Fix up and optimize the kmap_coherent() interface.Paul Mundt2009-09-033-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes up the kmap_coherent/kunmap_coherent() interface for recent changes both in the page fault path and the shared cache flushers, as well as adding in some optimizations. One of the key things to note here is that the TLB flush itself is deferred until the unmap, and the call in to update_mmu_cache() itself goes away, relying on the regular page fault path to handle the lazy dcache writeback if necessary. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: Kill off kgdb's magical NMI debouncing.Paul Mundt2009-09-011-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kgdb stub has traditionally tied in to the NMI slot, and manually handled debounce. Now that we have a generic way to do this instead, all of the stub-specific debounce silliness can be killed off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | sh: nmi_debug support.Paul Mundt2009-09-012-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements support for NMI debugging that was shamelessly copied from the avr32 port. A bit of special magic is needed in the interrupt exception path given that the NMI exception handler is stubbed in to the regular exception handling table despite being reported in INTEVT. So we mangle the lookup and kick off an EXPEVT-style exception dispatch from the INTEVT path for exceptions that do_IRQ() has no chance of handling. As a result, we also drop the evt2irq() conversion from the do_IRQ() path and just do it in assembly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | Merge branch 'master' into sh/smpPaul Mundt2009-09-0122-50/+411
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sh/mm/cache-sh4.c
| | * | | | | sh: unwinder: Fix up uninitialized variable warnings on sh2a build.Paul Mundt2009-08-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A couple of these popped up on the sh2a build, causing build failures. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: Only shout about fixing up unexpected unaligned accessesMatt Fleming2009-08-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some unaligned accesses are completely expected. For example, the trapped_io code uses the unaligned access fixup code path so there's no need to warn about having to fixup the unaligned access. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: sh7785lcr: fix prototype board on 32bit MMU mode.Yoshihiro Shimoda2009-08-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix up PCA9564 resources on 32bit MMU mode using prototype board. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Tested-by: Raul Porcel <armin76@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: Tidy up watchdog build for SH-2.Paul Mundt2009-08-281-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: Fix an off-by-1 in FTRACE_SYSCALL_MAX.Paul Mundt2009-08-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is supposed to be the equivalent of __NR_syscalls, not __NR_syscalls -1. The x86 code this was based on had simply fallen out of sync at the time this was implemented. Fix it up now. As a result, tracing of __NR_perf_counter_open works as advertised. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | Merge branch 'sh/st-integration'Paul Mundt2009-08-246-5/+38
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| | | * | | | | sh: fix sys_cacheflush error checkingGiuseppe Cavallaro2009-08-241-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sys_cacheflush should return with EINVAL if the cache parameter is not one of ICACHE, DCACHE or BCACHE. So, we need to include 0 in the first check. It also adds the three definitions above as wrapper of the existent macros. PS: ltp cacheflush01 test now passes. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: Add sys_cacheflush() call for SH CPUs.Stuart Menefy2009-08-244-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds a system call to allow user code to flush code from the cache. You can use instructions for the data side, but the iside can only be done by a flush ROM which really only works with a direct mapped cache. The later SH4's have 2 way Iside, so this call allows a portable way to flush the cache. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: Read from CCN_PVR instead of ROM for delay.Stuart Menefy2009-08-241-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reading from the ROM is not a good idea as it could disturb some flash operation that it is in progress. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: Remove implicit sign extension from assembler immediatesStuart Menefy2009-08-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SH instruction set has several instructions which accept an 8 bit immediate operand. For logical instructions this operand is zero extended, for arithmetic instructions the operand is sign extended. After adding an option to the assembler to check this, it was found that several pieces of assembly code were assuming this behaviour, and in one case getting it wrong. So this patch explicitly sign extends any immediate operands, which makes it obvious what is happening, and fixes the one case which got it wrong. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: Allow use of GENERIC_IOMAPDavid McKay2009-08-241-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The synopsys PCI cell used in the later STMicro chips requires code to be run in order to do IO cycles, rather than just memory mapping the IO space. Rather than extending the existing SH infrastructure to allow this, use the GENERIC_IOMAP implmentation to save re-inventing the wheel. This set of changes allows the SH to be built with GENERIC_IOMAP enabled, it just ifdef's out the functions provided by the GENERIC_IOMAP implementation, and provides a few required missing functions. Signed-off-by: David McKay <david.mckay@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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