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* byteorder: make swab.h include asm/swab.h like a regular headerHarvey Harrison2009-01-14
| | | | | | | | | Add swab.h to kbuild.asm and remove the individual entries from each arch, mark as unifdef as some arches have some kernel-only bits inside. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* NOMMU: Make VMAs per MM as for MMU-mode linuxDavid Howells2009-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make VMAs per mm_struct as for MMU-mode linux. This solves two problems: (1) In SYSV SHM where nattch for a segment does not reflect the number of shmat's (and forks) done. (2) In mmap() where the VMA's vm_mm is set to point to the parent mm by an exec'ing process when VM_EXECUTABLE is specified, regardless of the fact that a VMA might be shared and already have its vm_mm assigned to another process or a dead process. A new struct (vm_region) is introduced to track a mapped region and to remember the circumstances under which it may be shared and the vm_list_struct structure is discarded as it's no longer required. This patch makes the following additional changes: (1) Regions are now allocated with alloc_pages() rather than kmalloc() and with no recourse to __GFP_COMP, so the pages are not composite. Instead, each page has a reference on it held by the region. Anything else that is interested in such a page will have to get a reference on it to retain it. When the pages are released due to unmapping, each page is passed to put_page() and will be freed when the page usage count reaches zero. (2) Excess pages are trimmed after an allocation as the allocation must be made as a power-of-2 quantity of pages. (3) VMAs are added to the parent MM's R/B tree and mmap lists. As an MM may end up with overlapping VMAs within the tree, the VMA struct address is appended to the sort key. (4) Non-anonymous VMAs are now added to the backing inode's prio list. (5) Holes may be punched in anonymous VMAs with munmap(), releasing parts of the backing region. The VMA and region structs will be split if necessary. (6) sys_shmdt() only releases one attachment to a SYSV IPC shared memory segment instead of all the attachments at that addresss. Multiple shmat()'s return the same address under NOMMU-mode instead of different virtual addresses as under MMU-mode. (7) Core dumping for ELF-FDPIC requires fewer exceptions for NOMMU-mode. (8) /proc/maps is now the global list of mapped regions, and may list bits that aren't actually mapped anywhere. (9) /proc/meminfo gains a line (tagged "MmapCopy") that indicates the amount of RAM currently allocated by mmap to hold mappable regions that can't be mapped directly. These are copies of the backing device or file if not anonymous. These changes make NOMMU mode more similar to MMU mode. The downside is that NOMMU mode requires some extra memory to track things over NOMMU without this patch (VMAs are no longer shared, and there are now region structs). Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-01-07
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (171 commits) Blackfin arch: fix bug - BF527 0.2 silicon has different CPUID (DSPID) value Blackfin arch: Enlarge flash partition for kenel for bf533/bf537 boards Blackfin arch: fix bug: kernel crash when enable SDIO host driver Blackfin arch: Print FP at level KERN_NOTICE Blackfin arch: drop ad73311 test code Blackfin arch: update board default configs Blackfin arch: Set PB4 as the default irq for bf548 board v1.4+. Blackfin arch: fix typo in early printk bit size processing Blackfin arch: enable reprogram cclk and sclk for bf518f-ezbrd Blackfin arch: add SDIO host driver platform data Blackfin arch: fix bug - kernel stops at initial console Blackfin arch: fix bug - kernel crash after config IP for ethernet port Blackfin arch: add sdh support for bf518f-ezbrd Blackfin arch: fix bug - kernel detects BF532 incorrectly Blackfin arch: add () to avoid warnings from gcc Blackfin arch: change HWTRACE Kconfig and set it on default Blackfin arch: Clean oprofile build path for blackfin Blackfin arch: remove hardware PM code, oprofile not use it Blackfin arch: rewrite get_sclk()/get_vco() Blackfin arch: cleanup and unify the ins functions ...
| * Blackfin arch: fix bug - BF527 0.2 silicon has different CPUID (DSPID) valueRobin Getz2009-01-07
| | | | | | | | | | | | | | | | | | BF523/5/7 == 27e0 (all revs) BF522/4/6 == 27e4 (all revs) Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Enlarge flash partition for kenel for bf533/bf537 boardsGrace Pan2009-01-07
| | | | | | | | | | | | Signed-off-by: Grace Pan <grace.pan@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix bug: kernel crash when enable SDIO host driverMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | | | update bfin-sdh platform data to fix this issue. Pointed-out-by: Dominik Herwald <d.herwald@dsh-elektronik.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Print FP at level KERN_NOTICEJie Zhang2009-01-07
| | | | | | | | | | | | Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: drop ad73311 test codeMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | drop ad73311 test code, this can be done easily from userspace Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update board default configsSonic Zhang2009-01-07
| | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Set PB4 as the default irq for bf548 board v1.4+.Sonic Zhang2009-01-07
| | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix typo in early printk bit size processingMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: enable reprogram cclk and sclk for bf518f-ezbrdSonic Zhang2009-01-07
| | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add SDIO host driver platform dataCliff Cai2009-01-07
| | | | | | | | | | | | Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix bug - kernel stops at initial consoleSonic Zhang2009-01-07
| | | | | | | | | | | | | | | | | | | | | | Bug: Boot kernel in BF533-EZKIT without set ip during boot, it stops at initial console. Restore serial platform_device data to fix this issue. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix bug - kernel crash after config IP for ethernet portMichael Hennerich2009-01-07
| | | | | | | | | | | | | | | | Fix typo - kernel crash on bf533-stamp/bf533-ezkit after config IP for ethernet port Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add sdh support for bf518f-ezbrdCliff Cai2009-01-07
| | | | | | | | | | | | Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix bug - kernel detects BF532 incorrectlyRobin Getz2009-01-07
| | | | | | | | | | | | | | | | | | fix this typo in this patch Reported-by: Ben Matthews <mben12@gmail.com> Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add () to avoid warnings from gccMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: change HWTRACE Kconfig and set it on defaultMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | | | change the hwtrace description to be less confusing and default it to on (since there shouldnt be any crashes in the miss handler code itself) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Clean oprofile build path for blackfinGraf Yang2009-01-07
| | | | | | | | | | | | | | | | | | [Mike Frysinger <vapier.adi@gmail.com>: scrub comment header] Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: remove hardware PM code, oprofile not use itGraf Yang2009-01-07
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: rewrite get_sclk()/get_vco()Mike Frysinger2009-01-07
| | | | | | | | | | | | | | | | | | rewrite get_sclk()/get_vco() based on the assumption sclk/vco never changes (since today it cannot) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: cleanup and unify the ins functionsMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | this also fixes some errors in the ipipe merge Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Make bfin_mac built for bf51xSonic Zhang2009-01-07
| | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: merge adeos blackfin part to arch/blackfin/Yi Li2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [Mike Frysinger <vapier.adi@gmail.com>: - handle bf531/bf532/bf534/bf536 variants in ipipe.h - cleanup IPIPE logic for bfin_set_irq_handler() - cleanup ipipe asm code a bit and add missing ENDPROC() - simplify IPIPE code in trap_c - unify some of the IPIPE code and fix style - simplify DO_IRQ_L1 handling with ipipe code - revert IRQ_SW_INT# addition from ipipe merge - remove duplicate get_{c,s}clk() prototypes ] Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Add AD7879 defaults for the Blackfin Landscape LCD EZ-ExtenderMichael Hennerich2009-01-07
| | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: disable pthread stack check for SMP at runtimeSonic Zhang2009-01-07
| | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: merge kgdb test code using common CONFIG_KGDB_TESTSMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | | | [Grace Pan <grace.pan@analog.com>: Add case for kgdb test in l1 and l2] Signed-off-by: Grace Pan <grace.pan@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Faster C implementation of no-MPU CPLB handlerBernd Schmidt2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a mixture ofcMichael McTernan's patch and the existing cplb-mpu code. We ditch the old cplb-nompu implementation, which is a good example of why a good algorithm in a HLL is preferrable to a bad algorithm written in assembly. Rather than try to construct a table of all posible CPLBs and search it, we just create a (smaller) table of memory regions and their attributes. Some of the data structures are now unified for both the mpu and nompu cases. A lot of needless complexity in cplbinit.c is removed. Further optimizations: * compile cplbmgr.c with a lot of -ffixed-reg options, and omit saving these registers on the stack when entering a CPLB exception. * lose cli/nop/nop/sti sequences for some workarounds - these don't * make sense in an exception context Additional code unification should be possible after this. [Mike Frysinger <vapier.adi@gmail.com>: - convert CPP if statements to C if statements - remove redundant statements - use a do...while loop rather than a for loop to get slightly better optimization and to avoid gcc "may be used uninitialized" warnings ... we know that the [id]cplb_nr_bounds variables will never be 0, so this is OK - the no-mpu code was the last user of MAX_MEM_SIZE and with that rewritten, we can punt it - add some BUG_ON() checks to make sure we dont overflow the small cplb_bounds array - add i/d cplb entries for the bootrom because there is functions/data in there we want to access - we do not need a NULL trailing entry as any time we access the bounds arrays, we use the nr_bounds variable ] Signed-off-by: Michael McTernan <mmcternan@airvana.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update anomaly headers to match latest sheetsMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Fix bug - IrDA SIR build failed for BF533.Graf Yang2009-01-07
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: panic when running on a chip rev below what we are compiled forRobin Getz2009-01-07
| | | | | | | | | | | | | | | | | | | | | | If we are running on a chip revision below what we are compiled for, there will be missing anomaly workarounds, and a panic is inevitable. Do is sooner, rather than later, so people don't look for bugs that already have workarounds (that they turned off). Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Fix bug - wrong endpoint number and dma channels of USBBryan Wu2009-01-07
| | | | | | | | | | | | | | Blackfin MUSB has 8 endpoints including ep0 and 8 dma channels not 7 Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: do not allow people to pass in a diff clkin_hz valueMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | | | do not allow people to pass in a diff clkin_hz value when reprogramming clocks -- it is too late currently Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: allow clkin_hz to be specified on the command lineMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: show_cpuinfo - consolidate ugly castsMike Frysinger2009-01-07
| | | | | | | | | | | | | | | | | | rather than use *(unsigned int *)v everywhere, do this once with a local cpu_num variable Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add __init markings to Blackfin timer init functionsMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add get_dma_config() func to match set_dma_config()Mike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add volatile markings to DMA MMRsMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Make the interrupt edge and polarity type configurable based ↵Michael Hennerich2009-01-07
| | | | | | | | | | | | | | | | on IORESOURCE_BITS Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Remove wasted SIR header filesGraf Yang2009-01-07
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Modify bfin_sir device configuration to board fileGraf Yang2009-01-07
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update header to match new locationGraf Yang2009-01-07
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Fix typo (channel)Jean Delvare2009-01-07
| | | | | | | | | | | | | | | | Channnel -> Channel Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Replace C version of 64 bit multiply with hand optimized assemblyBernd Schmidt2009-01-07
| | | | | | | | | | | | Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: remove unused members of dma_channel structMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Update some inline assembly, tweak some register constraintsRobin Getz2009-01-07
| | | | | | | | | | | | Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: stub out pgprot_noncached() like other people seem to do on nommuMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Fix incorrect use of loose in cpufreq.cNick Andrew2009-01-07
| | | | | | | | | | | | | | | | | | It should be 'lose', not 'loose'. Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add __must_check markings to our user functions like other archesMike Frysinger2009-01-07
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
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