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* perf: Do the big rename: Performance Counters -> Performance EventsIngo Molnar2009-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Blackfin: update ftrace for latest toolchainYi Li2009-09-16
| | | | | | | | | | | | The mcount support that was finally added to the Blackfin gcc port isn't exactly the same as what ftrace was developed against. Now that the final gcc version is in place, update the ftrace code to match. While updating this, fix the swapped arguments to the tracer (signature is (ip, parent_ip) while we were passing (parent_ip, ip)). Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix elf_fpregset_t definitionMike Frysinger2009-09-16
| | | | | | | | | | The elf_fpregset_t type relied on an empty struct in the asm/user.h, but the transition to asm-generic/user.h dropped that empty struct. Rather than restore this useless struct, define the only user (elf_fpregset_t) as an empty struct itself. This fixes building when ELF dump support is enabled. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify cache init functionsMike Frysinger2009-09-16
| | | | | | | | The CPLB implementations (mpu/nompu) had exact copies of the cacheinit code. Even the i/d cache functions are largely the same. So unify them both in the common kernel cache code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: swap clocksource ratings for gptimer/cyclesGraf Yang2009-09-16
| | | | | | | | The cycles clocksource is a higher resolution than the gptimer one, so make sure the ratings field reflects this. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: update ftrace_push_return_trace() breakageMike Frysinger2009-09-16
| | | | | | | | Commit 71e308a239c updated ftrace_push_return_trace() prototype but didn't update the Blackfin ftrace code, so things broke. Since we don't support the new stuff yet, call it with stub values. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: update cm board resourcesHarald Krapfenbauer2009-09-16
| | | | | Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: cm-bf537u: split board from cm-bf537eHarald Krapfenbauer2009-09-16
| | | | | | | | The cm-bf537u module, while similar to the cm-bf537e, is different enough to warrant its own resources. It has a USB controller but no PHY. Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf538-ezkit: add SPI IRQ resourcesBarry Song2009-09-16
| | | | | Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: increase default async timings for parallel flashesSonic Zhang2009-09-16
| | | | | | | | | The default async timings are a little too fast for the parallel flash that is attached by default to the async banks. So slow things down a bit so accessing the hardware is stable. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: add ICPLB coverage for async banksBernd Schmidt2009-09-16
| | | | | | | | When doing XIP, we need to execute out of the async banks, so we need ICPLBs to allow this. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: use KERN_ALERT in all kgdb_test outputMingquan Pan2009-09-16
| | | | | | | | Most messages are already using KERN_ALERT, so be consistent to make things easier to check with test scripts. Signed-off-by: Mingquan Pan <grace.pan@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix BF54x SPI CS resourcesYi Li2009-09-16
| | | | | | | The BF54x has three slave select signals for SPI0/SPI1, not eight. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix typo in isram_write()Robin Getz2009-09-16
| | | | | | | | The DTEST write bit is 2, not 1. Improve comments in the related macro while we're here. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf537-stamp: add adp5588 gpio resourcesMichael Hennerich2009-09-16
| | | | | | | For the adp5588 GPIO daughter card. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: add some isram-driver self testsMike Frysinger2009-09-16
| | | | | | Make it easy to figure out if code changes here are correct. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: workaround anomaly 05000283Robin Getz2009-09-16
| | | | | | | | | Make sure our interrupt entry code with exact hardware errors handles anomaly 05000283 (infinite stall in system MMR kill) so we don't stall while under load. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix spelling in a few commentsMichael Hennerich2009-09-16
| | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: use raw_smp_processor_id() in exception codeYi Li2009-09-16
| | | | | | | | | | | When preempt debugging is enabled, smp_processor_id() may utilize the "current" structure. This may not be safe to access under all exceptions due to it being in dynamically allocated memory. So in exception code, make sure we use raw_smp_processor_id() instead to get at the real value directly. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: remove useless duplicated assignment in gpio codeMichael Hennerich2009-09-16
| | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: Fix link errors with binutils 2.19 and GCC 4.3Ingo Molnar2009-09-16
| | | | | | | | | | | | | | | | | | | | | Not sure whether this has been reported/fixed before. Today I built a Blackfin tool-chain from scratch for -tip testing, and it triggers: arch/blackfin/kernel/vmlinux.lds:1238: undefined section `.data_a_l1' referenced in expression and: arch/blackfin/kernel/vmlinux.lds:1238: undefined section `.text_data_l1' referenced in expression Now i dont have any way to test this linker script, but it now at least builds fine after fixing what appears to be typos in those assert statements. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: handle the core timer interrupt with handle_percpu_irq on SMPGraf Yang2009-09-16
| | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: optimize fixed code handling for the most common caseMike Frysinger2009-09-16
| | | | | | | | | | | The majority of the time we are returning to user space, it is not in the fixed atomic code region. So rather than branch to a function where we check the PC and return, do the check inline and branch only when needed. Also, tweak some of the fixed code handling based on assumptions we are aware of but cannot be expressed in C. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: delete '-spi' suffix in ad1836/ad1938 driver nameBarry Song2009-09-16
| | | | | | | | The ASoC drivers have dropped the redundant "-spi" suffix in the driver name, so update the board resources accordingly. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: punt dead cache locking codeMike Frysinger2009-09-16
| | | | | | | No one uses these functions, and some are duplicate of existing C code. So just punt the whole thing. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: drop board resources for dead devices (pbx/ad9960)Mike Frysinger2009-09-16
| | | | | | | These hardware devices are dead and the drivers never cleaned up/merged, so punt the useless board resource info. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: do not trace the exception handlerYi Li2009-09-16
| | | | | | | | Since the exception handler cannot cause exceptions, we cannot trace it without easily causing double faults and crashing the system. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix BF522/BF523 max VCO mixupMike Frysinger2009-09-16
| | | | | | The BF522 and BF523 had their real max VCO values swapped. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP port does not yet support cpu frequency scalingGraf Yang2009-09-16
| | | | | | | | We have an item to get this fixed, but in the mean time, disable selection via Kconfig dependencies. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: cleanup sync handling when enabling/disabling cplbsYi Li2009-09-16
| | | | | | | | | | | | | | The handling of updating the [DI]MEM_CONTROL MMRs does not follow proper sync procedures as laid out in the Blackfin programming manual. So rather than audit/fix every call location, create helper functions that do the right things in order to safely update these MMRs. Then convert all call sites to use these new helper functions. While we're fixing the code, drop the workaround for anomaly 05000125 as that anomaly applies to old versions of silicon that we do not support. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf537-stamp: update ad1836 resourcesBarry Song2009-09-16
| | | | | | | Update the ad1836 resources for the new ASoC driver. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: update anomaly listsYi Li2009-09-16
| | | | | Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf538-ezkit: add resources for parallel flashBarry Song2009-09-16
| | | | | | | | The board has some parallel flash hooked up to the async banks, so add appropriate physmap resources for it. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix read buffer overflowRoel Kluin2009-09-16
| | | | | | | Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf548-ezkit: fix incorrect LCD size parametersStefan Pledl2009-09-16
| | | | | | | | | | | | | | | I think we have to use the physical dimensions [mm] of the display for .width and .heigth in struct bfin_bf54xfb_mach_info bf54x_lq043_data which are copied to fbinfo->var.height/.width in bf54x-lq043fb.c. linux/fb.h describes this values as 'height/weight of picture in mm' Otherwise QT calcs the wrong dpi value and the displayed fonts are very small. Signed-off-by: Stefan Pledl <stefan.pledl@mesutronic.de> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: cm-bf527/bf537-stamp: fix dm9000 resourcesBarry Song2009-09-16
| | | | | | | | The dm9000 driver expects two IORESOURCE_MEM to get at the device, so make sure we declare things properly. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: drop unused MMR defines that only cause bad code to be writtenMike Frysinger2009-09-16
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert boards to use platform data with smc91xMichael Hennerich2009-09-16
| | | | | | | | Latest smc91x driver allows you to specify settings in board resources rather than needing CONFIG_BLACKFIN in the drivers/net/smc91x.h header. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf537-stamp: drop ATA interrupt probe workaroundBarry Song2009-09-16
| | | | | | | | | The interrupt probe workaround doesn't work without hacks to common code, and the add-on card only needs a simple resistor to fix the problem, so drop the board-specific hack. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: improve double fault debug handlingGraf Yang2009-09-16
| | | | | | | | | | | | | | Since the hardware only provides reporting for the last exception handled, and the values are valid only when executing the exception handler, we need to save the context for reporting at a later point. While we do this for one exception, it doesn't work properly when handling a second one as the original exception is clobbered by the double fault. So when double fault debugging is enabled, create a dedicated shadow of these values and save/restore out of there. Now the crash report properly displays the first exception as well as the second one. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf533-stamp: fix typo in SPI frequency for ad1836 codecCliff Cai2009-09-16
| | | | | | | One too many zeros means we run way faster than the codec can handle. Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix MPU handling of invalid memory accessesGraf Yang2009-09-16
| | | | | | | | | | | | The protect_page() function was incorrectly setting up the hardware tables based on possible access capabilities rather than the actual requested values. This means we would grant more access to mmap-ed pages than we should have. Once we fix this, we need to tweak the signal generated by such accesses to aline ourselves with other ports. This allows the LTP mmap0{5,6,7} cases to run properly. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: clean up duplicate I2C device type definitionsJean Delvare2009-09-16
| | | | | | | I2C_BOARD_INFO() already sets .type, no need to set it again. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf537-stamp: update AD714x resourcesBarry Song2009-09-16
| | | | | | | | Push the device table to the board resources as data interpretation can be changed on a per-board basis. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: do not try displaying the end of the stackSonic Zhang2009-09-16
| | | | | | | | | The end of the stack may not be valid (and that could be OK), so do not attempt to parse it. If we do, we might use a bad pointer in kernel space which makes things panic(). Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf533-stamp: add resources for mmc_spi cardYi Li2009-09-16
| | | | | Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf538: add bfin_clear_PPI_STATUS() helperBarry Song2009-09-16
| | | | | | | Add the bf538 version of bfin_clear_PPI_STATUS() to match all other ports. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix BF548 UART0 DMA IRQ translationStefan Pledl2009-09-16
| | | | | | | | | The initial BF54x port included some defines to keep code simple across different processors, but it just ended up causing the UART0 DMA IRQs to be set to the UART1 channels. Signed-off-by: Stefan Pledl <stefan.pledl@mesutronic.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: catch hardware errors earlier during bootingRobin Getz2009-09-16
| | | | | | | | | | | | | | | | | | Allow hardware errors to be caught during early portions of booting, and leave something in the shadow console that people can use to debug their system with (to be printed out by the bootloader on next reset). This enables the hardare error interrupts in head.S, allowing us to find hardware errors when they happen (well, as much as you can with a hardware error) and prints out the trace if it is enabled. This will catch errors (like booting the wrong image on a 533) which previously resulted in a infinite loop/hang, as well as random hardware errors before before setup_arch(). To disable this debug only feature - turn off EARLY_PRINTK. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: add an early shadow consoleRobin Getz2009-09-16
| | | | | | | | | Add a memory based shadow console to keep a copy of the printk buffer in a location which can be found externally. This allows bootloaders to locate and utilize the log buffer in case of silent (early/resume/etc...) crashes. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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