summaryrefslogtreecommitdiffstats
path: root/arch
AgeCommit message (Collapse)AuthorFilesLines
2009-05-26microblaze_mmu_v2: Context handling - mmu_context.c/hMichal Simek4-21/+238
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: Page fault handling high level - fault.cMichal Simek1-0/+304
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: mmu.h updateMichal Simek1-2/+102
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: MMU initializationMichal Simek1-4/+154
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: TLB low level codeMichal Simek1-0/+120
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: Alocate TLB for early consoleMichal Simek2-2/+11
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: MMU update for startup codeMichal Simek1-0/+190
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: Add mmu_defconfigMichal Simek1-0/+798
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze: Fix size of __kernel_mode_t to shortMichal Simek1-1/+1
This patches solve problem with inconsistency between kernel and glibc Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze: Add audit and seccomp thread flags.Edgar E. Iglesias1-0/+9
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-22microblaze: Kbuild updateMichal Simek1-24/+1
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Fix cast warning for __va in prom.cMichal Simek1-2/+3
__va expect 32bit value but of_read_ulong(of_read_number) returns 64bit value Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21Microblaze: Remove unused variable from paging initMichal Simek1-1/+0
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Cleanup compiled-in rootfs in BSS sectionMichal Simek1-21/+32
This patch is based on patch from Steve Magnani. There were bug for compiled-in rootfs. We have to move moving rootfs which is in BSS section to _ebss section which is at the end of kernel and then clear bss section not vice-versa. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Fix early cmdline for CMDLINE_FORCEMichal Simek2-8/+3
This patch fixed parsing early parameters because current implementation does that early parse DTS command line and then parse CMDLINE line which is compiled-in. For case that DTS doesn't contain command line is copied command line from kernel with is done in prom.c that's why I can remove it from machine_early_init. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Guard __HAVE_ARCH macros with __KERNEL__ in string.hSteve Magnani1-1/+1
A polarity reversal in the __KERNEL__ guard prevents the __HAVE_ARCH flags from being defined in kernel compilation. I noticed that there's now an option for assembly-optimized versions of memcpy and memmove. I believe this may be buggy; when I turn it on, all my printk output gets smashed together, as if the newlines aren't getting copied. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: clean LDFLAGS to build kernelThomas Chou1-0/+2
Extra LDFLAGS from user space building may cause kernel failed to compile. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Fix paging init-zone initializationSteve Magnani1-4/+3
This patch fix problem with bad zone initialization. This bug wasn't perform because Microblaze doesn't define CONFIG_ZONE_DMA and ZONE_NORMAL was 0 for this case that's why free_area_init works with correct values. Original message: I believe that the switch from ZONE_DMA (== 0) to ZONE_NORMAL broke the free area initialization. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: use generic dma-mapping-broken.hArnd Bergmann2-130/+2
Microblaze does not support the Linux DMA mapping API at this point, so disable CONFIG_NO_DMA. This lets us use the generic dma-mapping-broken.h implementation instead of providing a different copy. Any drivers that try to use DMA mapping now get omitted from Kconfig or produce a link error, rather than failing silently at run time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: prepare signal handling for generic unistd.hMichal Simek3-76/+17
We need to define set_restore_sigmask() in order to get pselect and ppoll. Also, the setup_frame function can not be used when __NR_sigreturn is not defined. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: clean up checksum.cArnd Bergmann2-17/+28
This changes the function prototypes in the checksum code to have the usual prototypes, typically by turning int arguments into __wsum. Also change csum_partial_copy_from_user() to operate on the right address space and export ip_fast_csum, which is used in modular networking code. The new version is now sparse-clean including endianess checks. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: remove bad_user_access_lengthArnd Bergmann1-4/+3
This function was actually causing harm, by hiding errors about invalid sized get_user/put_user accesses. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: do not include types.h in ptrace.hArnd Bergmann1-1/+0
linux/types.h breaks the uclibc build, so don't include it here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: add a dummy pgprot_noncachedArnd Bergmann1-0/+2
Some device drivers call this, so add a macro that pretends to do this. Since there is no MMU support, it won't actually result in an uncached mapping, though. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: add security initcallsArnd Bergmann1-0/+2
The security subsystem has its own initcalls, which need support in vmlinux.lds.S. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: remove cacheable_memcpyArnd Bergmann1-5/+0
This function is neither declared nor used anywhere outside of ppc32, so remove it from microblaze. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: kill incorrect __bad_xchg definitionArnd Bergmann1-8/+0
The whole point of the __bad_xchg declaration in system.h is to give a linker error when a variable of invalid size is passed to __xchg. The out of line definition in traps.c defeats this purpose and does not any value, so remove it here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: fix __user annotationsArnd Bergmann1-12/+10
The microblaze signal handling code gets some __user pointers wrong, as shown by sparse. This adds the annotations where appropriate and change sys_rt_sigreturn to correctly pass a user stack down to do_sigaltstack instead of a kernel structure. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: export some symbolsArnd Bergmann3-1/+5
Some device drivers require the symbols _ebss, kernel_thread, __page_offset or ___range_ok, so export them. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Kconfig: Enable drivers for MicroblazeMichal Simek1-3/+4
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-21microblaze: Remove POWERPC reference from Microblaze gpio.hMichal Simek1-3/+3
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-20Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds6-15/+10
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: 64-bit: Fix system lockup. MIPS: IP28: Change to build with -mr10k-cache-barrier=store MIPS: IP22: Fix hang in power button interrupt handler MIPS: IP32: Fix hang on shutdown in power button interrupt handler.
2009-05-20Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds31-131/+150
* master.kernel.org:/home/rmk/linux-2.6-arm: (25 commits) [ARM] 5519/1: amba probe: pass "struct amba_id *" instead of void * [ARM] 5517/1: integrator: don't put clock lookups in __initdata [ARM] 5518/1: versatile: don't put clock lookups in __initdata [ARM] mach-l7200: fix spelling of SYS_CLOCK_OFF [ARM] Double check memmap is actually valid with a memmap has unexpected holes V2 [ARM] realview: fix broadcast tick support [ARM] realview: remove useless smp_cross_call_done() [ARM] smp: fix cpumask usage in ARM SMP code [ARM] 5513/1: Eurotech VIPER SBC: fix compilation error [ARM] 5509/1: ep93xx: clkdev enable UARTS ARM: OMAP2/3: Change omapfb to use clkdev for dispc and rfbi, v2 ARM: OMAP3: Fix HW SAVEANDRESTORE shift define ARM: OMAP3: Fix number of GPIO lines for 34xx [ARM] S3C: Do not set clk->owner field if unset [ARM] S3C2410: mach-bast.c registering i2c data too early [ARM] S3C24XX: Fix unused code warning in arch/arm/plat-s3c24xx/dma.c [ARM] S3C64XX: fix GPIO debug [ARM] S3C64XX: GPIO include cleanup [ARM] nwfpe: fix 'floatx80_is_nan' sparse warning [ARM] nwfpe: Add decleration for ExtendedCPDO ...
2009-05-20MIPS: 64-bit: Fix system lockup.Greg Ungerer3-10/+5
The address range size calculation inside local_flush_tlb_kernel_range() is being truncated by a too small size variable holder on 64-bit systems. The truncated size can result in an erroneous tlbsize check that means we sit spinning inside a loop trying to flush a hige number of TLB entries. This is for all intents and purposes a system hang. Fix by using an appropriately sized valiable to hold the size. [Ralf: Greg's original patch submission identified the issue and fixed one instance in tlb-r4k.c but there there were several more. For consistency I also modified tlb-r3k.c even though that file is only used on 32-bit.] Signed-off-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-20MIPS: IP28: Change to build with -mr10k-cache-barrier=storepeter fuerst1-3/+3
Richard Sandiford's new code for inserting the cache-barriers, for GCC 4.3 and above and already incorporated in the current GCC-release, uses a slightly different option-syntax. Signed-off-by: peter fuerst <post@pfrst.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-20MIPS: IP22: Fix hang in power button interrupt handlerRalf Baechle1-1/+1
The hang was caused by the use of disable_irq() from the interrupt handler itself. Fixed by the use of disable_irq_nosync(). The issue was triggered by: commit 3aa551c9b4c40018f0e261a178e3d25478dc04a9 Author: Thomas Gleixner <tglx@linutronix.de> Date: Mon Mar 23 18:28:15 2009 +0100 genirq: add threaded interrupt handler support Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-20MIPS: IP32: Fix hang on shutdown in power button interrupt handler.Andrew Randrianasulu1-1/+1
The hang was caused by the use of disable_irq() from the interrupt handler itself. Fixed by the use of disable_irq_nosync(). The issue was triggered by: commit 3aa551c9b4c40018f0e261a178e3d25478dc04a9 Author: Thomas Gleixner <tglx@linutronix.de> Date: Mon Mar 23 18:28:15 2009 +0100 genirq: add threaded interrupt handler support Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-19Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2-20/+34
* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix kind-of-intr checking against number of interrupts microblaze: Update Microblaze defconfig
2009-05-18Merge branch 'merge' of ↵Linus Torvalds4-55/+76
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Explicit alignment for .data.cacheline_aligned powerpc/ps3: Update ps3_defconfig powerpc/ftrace: Fix constraint to be early clobber powerpc/ftrace: Use pr_devel() in ftrace.c powerpc: Do not assert pte_locked for hugepage PTE entries
2009-05-18[ARM] 5517/1: integrator: don't put clock lookups in __initdataRabin Vincent1-1/+1
Remove the __initdata annotation for the clock lookups, since they will be needed when loading modules which use clk_get(). Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-18[ARM] 5518/1: versatile: don't put clock lookups in __initdataRabin Vincent1-1/+1
Remove the __initdata annotation for the clock lookups, since they will be needed when loading modules which use clk_get(). Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-18Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds13-24/+58
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix performance regression caused by paravirt_ops on native kernels xen: use header for EXPORT_SYMBOL_GPL x86, 32-bit: fix kernel_trap_sp() x86: fix percpu_{to,from}_op() x86: mtrr: Fix high_width computation when phys-addr is >= 44bit x86: Fix false positive section mismatch warnings in the apic code
2009-05-18Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Append prompt in /debug/tracing/README file x86/function-graph: fix constraint for recording old return value
2009-05-18microblaze: Fix kind-of-intr checking against number of interruptsMichal Simek1-2/+2
+ Fix typographic fault. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-18microblaze: Update Microblaze defconfigMichal Simek1-18/+32
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-18[ARM] mach-l7200: fix spelling of SYS_CLOCK_OFFPavel Roskin1-1/+1
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-18[ARM] Double check memmap is actually valid with a memmap has unexpected ↵Mel Gorman1-3/+3
holes V2 pfn_valid() is meant to be able to tell if a given PFN has valid memmap associated with it or not. In FLATMEM, it is expected that holes always have valid memmap as long as there is valid PFNs either side of the hole. In SPARSEMEM, it is assumed that a valid section has a memmap for the entire section. However, ARM and maybe other embedded architectures in the future free memmap backing holes to save memory on the assumption the memmap is never used. The page_zone linkages are then broken even though pfn_valid() returns true. A walker of the full memmap must then do this additional check to ensure the memmap they are looking at is sane by making sure the zone and PFN linkages are still valid. This is expensive, but walkers of the full memmap are extremely rare. This was caught before for FLATMEM and hacked around but it hits again for SPARSEMEM because the page_zone linkages can look ok where the PFN linkages are totally screwed. This looks like a hatchet job but the reality is that any clean solution would end up consumning all the memory saved by punching these unexpected holes in the memmap. For example, we tried marking the memmap within the section invalid but the section size exceeds the size of the hole in most cases so pfn_valid() starts returning false where valid memmap exists. Shrinking the size of the section would increase memory consumption offsetting the gains. This patch identifies when an architecture is punching unexpected holes in the memmap that the memory model cannot automatically detect and sets ARCH_HAS_HOLES_MEMORYMODEL. At the moment, this is restricted to EP93xx which is the model sub-architecture this has been reported on but may expand later. When set, walkers of the full memmap must call memmap_valid_within() for each PFN and passing in what it expects the page and zone to be for that PFN. If it finds the linkages to be broken, it assumes the memmap is invalid for that PFN. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-18powerpc: Explicit alignment for .data.cacheline_alignedBenjamin Herrenschmidt1-0/+1
I don't think anything guarantees that the objects in data.page_aligned are a multiple of PAGE_SIZE, thus the section may end on any boundary. So the following section, .data.cacheline_aligned needs an explicit alignment. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-18powerpc/ps3: Update ps3_defconfigGeoff Levand1-43/+62
Refresh and set these options: CONFIG_SYSFS_DEPRECATED_V2: y -> n CONFIG_INPUT_JOYSTICK: y -> n CONFIG_HID_SONY: n -> m CONFIG_RTC_DRV_PS3: - -> m Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-18powerpc/ftrace: Fix constraint to be early clobberSteven Rostedt1-1/+1
After upgrading my distcc boxes from gcc 4.2.2 to 4.4.0, the function graph tracer broke. This was discovered on my x86 boxes. The issue is that gcc used the same register for an output as it did for an input in an asm statement. I first thought this was a bug in gcc and reported it. I was notified that gcc was correct and that the output had to be flagged as an "early clobber". I noticed that powerpc had the same issue and this patch fixes it. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-10 19:31:18 +0000