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2008-01-28sh: Add SH-5 support to io.h.Paul Mundt1-16/+22
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Add in cacheflush and DMA headers for SH-5.Paul Mundt2-0/+40
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Correct SH-5 instruction size value.Paul Mundt1-1/+3
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Add cache definitions for SH-5.Paul Mundt1-0/+94
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Add addrspace.h segmentation stub for SH-5.Paul Mundt1-0/+6
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: BUGFLAG_WARNING needs GENERIC_BUG.Paul Mundt1-2/+2
Move the HAVE_ARCH_BUG/HAVE_ARCH_WARN_ON definitions underneath CONFIG_GENERIC_BUG. This is needed for BUGFLAG_WARNING usage. Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Fix up fixmap location for SH-5.Paul Mundt1-0/+4
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Add SH-5 support to asm/module.h.Paul Mundt1-0/+4
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Split out cache status bits per-CPU family.Paul Mundt5-5/+20
Signed-off-by: Paul Mundt <[email protected]>
2008-01-28sh: Split out PXSEG segmentation per-CPU family.Paul Mundt5-23/+39
The CPU family abstraction already exists, so move out the PXSEG definition for each one. SH-2A already has this special cased, and SH-5 will as well. Signed-off-by: Paul Mundt <[email protected]>
2008-01-11sh: Force __access_ok() to obey address space limit.Paul Mundt1-27/+15
When the thread_info->addr_limit changes were introduced, __access_ok() was missed in the conversion, allowing user processes to perform P1/P2 accesses under certain conditions. This has already been corrected with the nommu refactoring in later kernels. Signed-off-by: Paul Mundt <[email protected]>
2008-01-07sh: Fix argument page dcache flushing regression.Carmelo Amoroso1-0/+6
In the do_execve() path, argument page handling used to explicitly call flush_dcache_page() for each page, this has since been reworked and uses flush_kernel_dcache_page() instead, which is presently a nop. Doing a simple modprobe/rmmod in a loop under busybox consistently manages to crash without providing a sane flush_kernel_dcache_page() implementation, so, plug in a simple implementation. Signed-off-by: Carmelo Amoroso <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2007-11-19sh: Fix copy_{to,from}_user_page() with cache disabled.Heiko Schocher1-1/+1
Signed-off-by: Heiko Schocher <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2007-11-09sh: remove dead config symbols from SH codeJiri Olsa1-4/+2
Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2007-11-08Merge branch 'page_colouring_despair'Paul Mundt2-8/+21
2007-11-07sh: Add a dummy vga.h.Paul Mundt1-0/+6
We have nothing to do here, but there are continually drivers that fail to build without it. Stub it in. Signed-off-by: Paul Mundt <[email protected]>
2007-11-07sh: Fix up PAGE_KERNEL_PCC() for nommu.Paul Mundt1-1/+3
PAGE_KERNEL_PCC() takes two arguments, which weren't reflected in the nommu case. Fix it up. Signed-off-by: Paul Mundt <[email protected]>
2007-11-07sh: Kill off __{copy,clear}_user_page().Paul Mundt1-4/+1
Now that copy_to_user_page()/copy_from_user_page() are wired up, we can drop the old __copy_xxx() implementations. Now that the page colouring scheme has changed via kmap_coherent(), we can avoid the flush in these specific helpers. Signed-off-by: Paul Mundt <[email protected]>
2007-11-07sh: Optimized copy_{to,from}_user_page() for SH-4.Paul Mundt1-4/+14
This moves copy_{to,from}_user_page() out-of-line on SH-4 and converts for the kmap_coherent() API. Based on the MIPS implementation. Signed-off-by: Paul Mundt <[email protected]>
2007-11-07sh: Wire up clear_user_highpage().Paul Mundt1-0/+6
With the kmap_coherent() API in place, this is trivial to implement, and lets us avoid the cache flush in certain cases. Signed-off-by: Paul Mundt <[email protected]>
2007-11-07sh: Kill off the remaining ST40 cruft.Paul Mundt1-1/+1
The ST40 stuff in-tree hasn't built for some time, and hasn't been updated for over 3 years. ST maintains their own out-of-tree changes and rebases occasionally, and that's ultimately where all of the ST40 users go anyways. In order for the ST40 code to be brought up to date most of the stuff removed in this changeset would have to be rewritten anyways, so there's very little benefit in keeping the remnants around either. Signed-off-by: Paul Mundt <[email protected]>
2007-11-07sh: remove PTRACE_O_TRACESYSGOOD from asm/ptrace.hMike Frysinger1-3/+0
The common linux/ptrace.h already defines PTRACE_O_TRACESYSGOOD so there is no need to have arches do it. This also keeps glibc-2.7 from breaking since it has an enum for the PTRACE_O_* flags. Signed-off-by: Mike Frysinger <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2007-11-02sh: Decouple 4k and soft/hardirq stacks.Paul Mundt1-1/+1
While using separate IRQ stacks can cut down on stack consumption, many users can also use 4k stacks directly without the additional need of separate stacks for soft and hardirqs. With this split, we support the same rationale for 4KSTACKS as m68knommu, with the IRQSTACKS abstraction as per ppc64. Signed-off-by: Paul Mundt <[email protected]>
2007-10-30sh: Provide a __read_mostly section wrapper.Paul Mundt1-0/+2
Signed-off-by: Paul Mundt <[email protected]>
2007-10-30sh: Move zero page param defs somewhere sensible.Paul Mundt1-0/+14
Follows s390 and others. Signed-off-by: Paul Mundt <[email protected]>
2007-10-30sh: Use generic SMP_CACHE_BYTES/L1_CACHE_ALIGN.Paul Mundt2-4/+1
Signed-off-by: Paul Mundt <[email protected]>
2007-10-30sh: Correct pte_page() breakage.Paul Mundt2-2/+1
As noted by David: pte_page() is a macro defined as follows; include/asm-sh/pgtable.h #define pte_page(x) phys_to_page(pte_val(x)&PTE_PHYS_MASK) include/asm-sh/page.h #define phys_to_page(phys) (pfn_to_page(phys >> PAGE_SHIFT)) So as you can see the phys_to_page() macro doesn't wrap the 'phys' parameter in parentheses so we end up with; pte_val(x)&PTE_PHYS_MASK >> PAGE_SHIFT Which is not what we wanted as '>>' has a higher precedence than bitwise AND. I dug into the git repository and I believe this bug was added with this commit (104b8deaa5c0144cccfc7d914413ff80c7176af1); 2006-03-27 KAMEZAWA Hiroyuki [PATCH] unify pfn_to_page: sh pfn_to_page -#define phys_to_page(phys) (mem_map + (((phys)-__MEMORY_START) >> PAGE_SHIFT)) -#define page_to_phys(page) (((page - mem_map) << PAGE_SHIFT) + __MEMORY_START) +#define phys_to_page(phys) (pfn_to_page(phys >> PAGE_SHIFT)) +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) Reported-by: David ADDISON <[email protected]> Reported-by: KAMEZAWA Hiroyuki <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2007-10-23sh/sh64: fixup dma-mapping for new sg layoutJens Axboe1-7/+5
Signed-off-by: Jens Axboe <[email protected]>
2007-10-22Add CONFIG_DEBUG_SG sg validationJens Axboe1-0/+3
Add a Kconfig entry which will toggle some sanity checks on the sg entry and tables. Signed-off-by: Jens Axboe <[email protected]>
2007-10-22Change table chaining layoutJens Axboe1-1/+1
Change the page member of the scatterlist structure to be an unsigned long, and encode more stuff in the lower bits: - Bits 0 and 1 zero: this is a normal sg entry. Next sg entry is located at sg + 1. - Bit 0 set: this is a chain entry, the next real entry is at ->page_link with the two low bits masked off. - Bit 1 set: this is the final entry in the sg entry. sg_next() will return NULL when passed such an entry. It's thus important that sg table users use the proper accessors to get and set the page member. Signed-off-by: Jens Axboe <[email protected]>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day2-2/+2
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2007-10-19forbid asm/bitops.h direct inclusionJiri Slaby1-0/+5
forbid asm/bitops.h direct inclusion Because of compile errors that may occur after bit changes if asm/bitops.h is included directly without e.g. linux/kernel.h which includes linux/bitops.h, forbid direct inclusion of asm/bitops.h. Thanks to Adrian Bunk. Signed-off-by: Jiri Slaby <[email protected]> Cc: Adrian Bunk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-19remove unused flush_tlb_pgtablesBenjamin Herrenschmidt1-6/+0
Nobody uses flush_tlb_pgtables anymore, this patch removes all remaining traces of it from all archs. Signed-off-by: Benjamin Herrenschmidt <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-18bitops: introduce lock opsNick Piggin1-0/+1
Introduce test_and_set_bit_lock / clear_bit_unlock bitops with lock semantics. Convert all architectures to use the generic implementation. Signed-off-by: Nick Piggin <[email protected]> Acked-By: David Howells <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Russell King <[email protected]> Cc: Haavard Skinnemoen <[email protected]> Cc: Bryan Wu <[email protected]> Cc: Mikael Starvik <[email protected]> Cc: David Howells <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: Hirokazu Takata <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Roman Zippel <[email protected]> Cc: Greg Ungerer <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Kyle McMartin <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Kazumoto Kojima <[email protected]> Cc: Richard Curnow <[email protected]> Cc: William Lee Irwin III <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Miles Bader <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Chris Zankel <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-17increase AT_VECTOR_SIZE to terminate saved_auxv properlyOlaf Hering2-0/+2
include/asm-powerpc/elf.h has 6 entries in ARCH_DLINFO. fs/binfmt_elf.c has 14 unconditional NEW_AUX_ENT entries and 2 conditional NEW_AUX_ENT entries. So in the worst case, saved_auxv does not get an AT_NULL entry at the end. The saved_auxv array must be terminated with an AT_NULL entry. Make the size of mm_struct->saved_auxv arch dependend, based on the number of ARCH_DLINFO entries. Signed-off-by: Olaf Hering <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Jakub Jelinek <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Paul Mundt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-17Remove dma_cache_(wback|inv|wback_inv) functionsRalf Baechle2-26/+1
dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized cache managment API for I/O purposes. Originally it was basically the raw MIPS low level cache API exported to the entire world. The API has suffered from a lack of documentation, was not very widely used unlike it's more modern brothers and can easily be replaced by dma_cache_sync. So remove it rsp. turn the surviving bits back into an arch private API, as discussed on linux-arch. Signed-off-by: Ralf Baechle <[email protected]> Acked-by: Paul Mundt <[email protected]> Acked-by: Paul Mackerras <[email protected]> Acked-by: David S. Miller <[email protected]> Acked-by: Kyle McMartin <[email protected]> Acked-by: Haavard Skinnemoen <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-17remove include/asm-*/ipc.hAdrian Bunk1-1/+0
All asm/ipc.h files do only #include <asm-generic/ipc.h>. This patch therefore removes all include/asm-*/ipc.h files and moves the contents of include/asm-generic/ipc.h to include/linux/ipc.h. Signed-off-by: Adrian Bunk <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-17cleanup floppy.hJan Beulich1-4/+0
AUTO_DMA and FLOPPY_MOTOR_MASK in include/asm-*/floppy.h are dead symbols - remove them. Signed-off-by: Jan Beulich <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-17remove strict ansi check from __u64 in asm/types.hOlaf Hering1-3/+3
Remove the __STRICT_ANSI__ check from the __u64/__s64 declaration on 32bit targets. GCC can be made to warn about usage of long long types with ISO C90 (-ansi), but only with -pedantic. You can write this in a way that even then it doesn't cause warnings, namely by: #ifdef __GNUC__ __extension__ typedef __signed__ long long __s64; __extension__ typedef unsigned long long __u64; #endif The __extension__ keyword in front of this switches off any pedantic warnings for this expression. Signed-off-by: Olaf Hering <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-17kill DECLARE_MUTEX_LOCKEDChristoph Hellwig1-1/+0
DECLARE_MUTEX_LOCKED was used for semaphores used as completions and we've got rid of them. Well, except for one in libusual that the maintainer explicitly wants to keep as semaphore. So convert that useage to an explicit sema_init and kill of DECLARE_MUTEX_LOCKED so that new code is reminded to use a completion. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: "Satyam Sharma" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-16x86: optimize page faults like all other achitectures and kill notifier cruftChristoph Hellwig1-2/+0
x86(-64) are the last architectures still using the page fault notifier cruft for the kprobes page fault hook. This patch converts them to the proper direct calls, and removes the now unused pagefault notifier bits aswell as the cruft in kprobes.c that was related to this mess. I know Andi didn't really like this, but all other architecture maintainers agreed the direct calls are much better and besides the obvious cruft removal a common way of dealing with kprobes across architectures is important aswell. [[email protected]: build fix] [[email protected]: fix sparc64] Signed-off-by: Christoph Hellwig <[email protected]> Cc: Andi Kleen <[email protected]> Cc: <[email protected]> Cc: Prasanna S Panchamukhi <[email protected]> Cc: Ananth N Mavinakayanahalli <[email protected]> Cc: Anil S Keshavamurthy <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds33-270/+705
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (124 commits) sh: allow building for both r2d boards in same binary. sh: fix r2d board detection sh: Discard .exit.text/.exit.data at runtime. sh: Fix up some section alignments in linker script. sh: Fix SH-4 DMAC CHCR masking. sh: Rip out left-over nommu cond syscall cruft. sh: Make kgdb i-cache flushing less inept. sh: kgdb section mismatches and tidying. sh: cleanup struct irqaction initializers. sh: early_printk tidying. video: pvr2fb: Add TV (RGB) support to Dreamcast PVR driver. sh: Conditionalize gUSA support. sh: Follow gUSA preempt changes in __switch_to(). sh: Tidy up gUSA preempt handling. sh: __copy_user() optimizations for small copies. sh: clkfwk: Support multi-level clock propagation. sh: Fix URAM start address on SH7785. sh: Use boot_cpu_data for CPU probe. sh: Support extended mode TLB on SH-X3. sh: Bump MAX_ACTIVE_REGIONS for SH7785. ...
2007-10-11i386/x86_64: move headers to include/asm-x86Thomas Gleixner1-1/+1
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2007-10-08sh: Fix SH-4 DMAC CHCR masking.Adrian McMenamin1-1/+1
This patch fixes the DMA cascade by masking the correct bits. Tested and working with Dreamcast PVR2 DMA. With this patch applied the existing mainline code in arch/sh/drivers/dma/dma-sh.c works, whereas before I was patching that to get round this problem. Signed-off-by: Adrian McMenamin <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2007-10-03sh: Make kgdb i-cache flushing less inept.Paul Mundt1-12/+0
kgdb had its own ranged I-cache flushing routine that attempted to duplicate the flush_icache_range() functionality, but managed to do an explicit D-cache writeback & invalidate twice on SH-4. This is a no-op for SH-3, and the flush_icache_range() semantics already do what kgdb was feebly attempting to do already, so just move over to that and kill off the wrapper. Signed-off-by: Paul Mundt <[email protected]>
2007-10-03sh: kgdb section mismatches and tidying.Paul Mundt1-10/+2
The kgdb console setup was callable from a left-over deferred initialization path, which in turn depends on __init symbols. Since the deferred initialization was removed some time ago, kill off the rest of those remnants and move kgdb_init() and friends to __init. Signed-off-by: Paul Mundt <[email protected]>
2007-09-27sh: Use boot_cpu_data for CPU probe.Paul Mundt1-1/+0
This moves off of smp_processor_id() and only sets the probe information for the boot CPU directly. This will be copied out for the secondaries, so there's no reason to do this each time. This also allows for some header tidying. Signed-off-by: Paul Mundt <[email protected]>
2007-09-27sh: processor.h needs smp.hPaul Mundt1-0/+1
Trivial build fix for SH-2. Signed-off-by: Paul Mundt <[email protected]>
2007-09-24sh: Define _ebss for uClinux MTD map driver.Paul Mundt1-0/+1
The uClinux MTD device uses _ebss, add the symbol and corresponding export. Signed-off-by: Paul Mundt <[email protected]>
2007-10-03Binfmt_flat: Add minimum support for the Blackfin relocationsBernd Schmidt1-1/+2
Add minimum support for the Blackfin relocations, since we don't have enough space in each reloc. The idea is to store a value with one relocation so that subsequent ones can access it. Actually, this patch is required for Blackfin. Currently if BINFMT_FLAT is enabled, git-tree kernel will fail to compile. Signed-off-by: Bernd Schmidt <[email protected]> Signed-off-by: Bryan Wu <[email protected]> Cc: David McCullough <[email protected]> Cc: Greg Ungerer <[email protected]> Cc: Miles Bader <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
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