- 25 Sep, 2006 16 commits
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Ben Dooks authored
The s3c24xx_va_gpio2 variable is only used when the S3C2412 and another cpu-type is being used in the kernel. This patch ensures it is not set when it is not being used. Fixes bug report by Thomas Gleixner. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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Ben Dooks authored
Remove the S3C2410 specific items out of the core PM code. Add sysdev driver for all the S3C24XX series that used the S3C2410 PM code. Signed-off-by:
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Ben Dooks authored
DMA channel mappings for the S3C2312 Signed-off-by:
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Lennert Buytenhek authored
On stepping A0/A1 of the 80200, invalidating D-cache by line doesn't clear the dirty bits, which means that if we invalidate a dirty line, the dirty data can still be written back to memory later on. To work around this, dma_inv_range() on these two processors is implemented as dma_flush_range() (i.e. do a clean D-cache line before doing the invalidate D-cache line.) For this, we currently have a processor ID check in xscale_dma_inv_range(), but a better solution is to add a separate cache_fns and proc_info for A0/A1 80200. Signed-off-by:
Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by:
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Lennert Buytenhek authored
Prevent userland from mapping in physical address regions >= 4G by checking for that in valid_mmap_phys_addr_range(). Unfortunately, we cannot override valid_mmap_phys_addr_range() without also overriding valid_phys_addr_range(), so copy drivers/char/mem.c's version of valid_phys_addr_range() over to arch/arm/mm/mmap.c as well. Signed-off-by:
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Lennert Buytenhek authored
Add Cirrus Logic EDB9312 support. Signed-off-by:
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Lennert Buytenhek authored
Now that we have raw_* variants of local_irq_$FOO(), switch the atomic helpers over to use those raw_* variants. This is necessary when using lockdep on pre-ARMv6 hardware, as lockdep uses atomic_t counters in the trace_hardirqs_off() path. Signed-off-by:
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Ben Dooks authored
Add LCD register definitions for the S3C2412. Signed-off-by:
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Ben Dooks authored
Add LCD register definitions for the S3C2442. Signed-off-by:
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Ben Dooks authored
Change to using flush_cache_all() in pm.c and also remove the need to flush the cache in the PM code. This changes the sleep.S code to have an entry to store the registers for resume, and then a second entry (after the caches are cleaned) to do the suspend and resume. Signed-off-by:
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Ben Dooks authored
Seperate the IRQ power management code out of the pm.c file, and add it to the relevant system class devices. Also make the suspend and resume code take notice of the fact these registers can be moved by compile time code. Add fix from Ilya Yanok to also save the INTSUBMSK over sleep. Signed-off-by:
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Ben Dooks authored
DMA channel mappings for the S3C2442 Signed-off-by:
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Ben Dooks authored
S3C2440 DMA channel mappings Signed-off-by:
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Ben Dooks authored
DMA channel mappings for the S3C2410 Signed-off-by:
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Ben Dooks authored
Allow each CPU type in the S3C24XX range to select the DMA channel mapping it supports. We change the DMA registration to use an virtual channel number that the DMA system will allocate to a hardware channel at request time. Signed-off-by:
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Ben Dooks authored
Add base definitions for the AC97 register definitions. Signed-off-by:
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- 20 Sep, 2006 9 commits
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Greg Ungerer authored
Create header with uClinux flat format binary support macros for ARM platforms. Derived from the m68knommu flat.h. Signed-off-by:
Greg Ungerer <gerg@uclinux.org> Signed-off-by:
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Daniel Jacobowitz authored
Patch from Daniel Jacobowitz The ARM kernel has several uses of asm("foo%?"). %? is a GCC internal modifier used to output conditional execution predicates. However, no version of GCC supports conditionalizing asm statements. GCC 4.2 will correctly expand %? to the empty string in user asms. Earlier versions may reuse the condition from the previous instruction. In 'if (foo) asm ("bar%?");' this is somewhat likely to be right... but not reliable. So, the only safe thing to do is to remove the uses of %?. I believe the tlbflush.h occurances were supposed to be removed before, based on the comment about %? not working at the top of that file. Old versions of GCC could omit branches around user asms if the asm didn't mark the condition codes as clobbered. This problem hasn't been seen on any recent (3.x or 4.x) GCC, but it could theoretically happen. So, where %? was removed a cc clobber was added. Signed-off-by:Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by:
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Russell King authored
The common case for the thread notifier is a context switch. Tell gcc that this is the most likely condition so it can optimise the function for this case. Signed-off-by: -
Russell King authored
ARM has interrupts enabled over context switches (iow, has __ARCH_WANT_INTERRUPTS_ON_CTXSW defined.) The lockdep code in fork.c assumes that interrupts are always disabled. Fix this wrong assumption by making the initialisation of 'p->hardirqs_enabled' depend on __ARCH_WANT_INTERRUPTS_ON_CTXSW. Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Russell King authored
This adds support for irqtrace for lockdep on ARM. Signed-off-by: -
Russell King authored
Rename mmu.c to context.c - it's the ARMv6 ASID context handling code rather than generic "mmu" handling code. Signed-off-by: -
Russell King authored
Move top_pmd into arch/arm/mm/mm.h - nothing outside arch/arm/mm references it. Move the repeated definition of TOP_PTE into mm/mm.h, as well as a few function prototypes. Signed-off-by: -
Linus Torvalds authored
Ahoy, all land-lubbers, test me out right smartly! Signed-off-by:Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IPV4] fib_trie: missing ntohl() when calling fib_semantic_match() [NETFILTER]: xt_quota: add missing module aliases [ATM]: [he] don't hold the device lock when upcalling
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- 19 Sep, 2006 14 commits
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Al Viro authored
fib_trie.c::check_leaf() passes host-endian where fib_semantic_match() expects (and stores into) net-endian. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Patrick McHardy authored
Add missing aliases for ipt_quota and ip6t_quota to make autoload work. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Chas Williams authored
This can create a deadlock/lock ordering problem with other layers that want to use the transmit (or other) path of the card at that time. Signed-off-by:
Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by:
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git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds authored
* 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6: NFS: Fix nfs_page use after free issues in fs/nfs/write.c NFSv4: Fix incorrect semaphore release in _nfs4_do_open() NFS: Fix Oopsable condition in nfs_readpage_sync()
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Trond Myklebust authored
Signed-off-by:Trond Myklebust <Trond.Myklebust@netapp.com>
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Trond Myklebust authored
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Trond Myklebust authored
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Linus Torvalds authored
This reverts commits 11012d41 and 40dd2d20, which allowed us to use the MMIO accesses for PCI config cycles even without the area being marked reserved in the e820 memory tables. Those changes were needed for EFI-environment Intel macs, but broke some newer Intel 965 boards, so for now it's better to revert to our old 2.6.17 behaviour and at least avoid introducing any new breakage. Andi Kleen has a set of patches that work with both EFI and the broken Intel 965 boards, which will be applied once they get wider testing. Cc: Arjan van de Ven <arjan@infradead.org> Cc: Edgar Hucek <hostmaster@ed-soft.at> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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git://git.infradead.org/mtd-2.6Linus Torvalds authored
* git://git.infradead.org/mtd-2.6: [MTD] Use SEEK_{SET,CUR,END} instead of hardcoded values in mtdchar lseek() MTD: Fix bug in fixup_convert_atmel_pri [JFFS2][SUMMARY] Fix a summary collecting bug. [PATCH] [MTD] DEVICES: Fill more device IDs in the structure of m25p80 MTD: Add lock/unlock operations for Atmel AT49BV6416 MTD: Convert Atmel PRI information to AMD format fs/jffs2/xattr.c: remove dead code [PATCH] [MTD] Maps: Add dependency on alternate probe methods to physmap [PATCH] MTD: Add Macronix MX29F040 to JEDEC [MTD] Fixes of performance and stability issues in CFI driver. block2mtd.c: Make kernel boot command line arguments work (try 4) [MTD NAND] Fix lookup error in nand_get_flash_type() remove #error on !PCI from pmc551.c MTD: [NAND] Fix the sharpsl driver after breakage from a core conversion [MTD] NAND: OOB buffer offset fixups make fs/jffs2/nodelist.c:jffs2_obsolete_node_frag() static [PATCH] [MTD] NAND: fix dead URL in Kconfig
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Dave Kleikamp authored
Fix a performance degradation introduced in 2.6.17. (30% degradation running dbench with 16 threads) Commit 21730eed, which claims to make EXT2_DEBUG work again, moves the taking of the kernel lock out of debug-only code in ext2_count_free_inodes and ext2_count_free_blocks and into ext2_statfs. The same problem was fixed in ext3 by removing the lock completely (commit 5b116879) Signed-off-by:
Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Matthew Wilcox authored
Remove definitions of PAGE_* from the user view Delete unnecessary comments referring to the size of pages Only include <asm-generic> if we're in __KERNEL__ Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
Matthew Wilcox <matthew@wil.cx> Signed-off-by:
Kyle McMartin <kyle@parisc-linux.org> Signed-off-by:
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Geert Uytterhoeven authored
Fix 'make headers_check' on m68k Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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David Woodhouse authored
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Ingo Molnar authored
while porting the -rt tree to 2.6.18-rc7 i noticed the following screaming-IRQ scenario on an SMP system: 2274 0Dn.:1 0.001ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.010ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.020ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.029ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.039ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.048ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.058ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.068ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.077ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.087ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) 2274 0Dn.:1 0.097ms: do_IRQ+0xc/0x103 <= (ret_from_intr+0x0/0xf) as it turns out, the bug is caused by handle_level_irq(), which if it races with another CPU already handling this IRQ, it _unmasks_ the IRQ line on the way out. This is not how 2.6.17 works, and we introduced this bug in one of the early genirq cleanups right before it went into -mm. (the bug was not in the genirq patchset for a long time, and we didnt notice the bug due to the lack of -rt rebase to the new genirq code. -rt, and hardirq-preemption in particular opens up such races much wider than anything else.) Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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- 18 Sep, 2006 1 commit
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Linus Torvalds authored
(And reset it on new thread creation) It turns out that eflags is important to save and restore not just because of iopl, but due to the magic bits like the NT bit, which we don't want leaking between different threads. Tested-by:
Mike Galbraith <efault@gmx.de> Signed-off-by:
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