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* xtensa: remove platform rtc hooksJohannes Weiner2009-04-021-11/+0
| | | | | | | | | | | | | | platform_get/set_rtc_time() is not implemented by any of the supported xtensa platforms. Remove the facility completely. The initial seconds for xtime come from read_persistent_clock() which returns just 0 in the generic implementation. Platforms that sport a persistent clock can implement this function. This is needed to implement the ccount as a clock source. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: s6000 variantJohannes Weiner2009-04-021-0/+56
| | | | | | | | Support for the Stretch S6000 Xtensa core variant. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: variant irq set callbacksJohannes Weiner2009-04-021-0/+7
| | | | | | | Allow the core variant code to provide irq enable/disable callbacks. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: nommu supportJohannes Weiner2009-04-0210-11/+77
| | | | | | | Add support for !CONFIG_MMU setups. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: add flat supportOskar Schirmer2009-04-021-0/+12
| | | | | | | | | Add the arch-specific header for flat support on xtensa in preparation for the Xtensa S6000 nommu port. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: enforce slab alignment to maximum register widthOskar Schirmer2009-04-021-0/+2
| | | | | | | | | | | | XCHAL_DATA_WIDTH is the maximum register width, slab caches should be aligned to this. Theoretical fix as all variants have had an XCHAL_DATA_WIDTH of 4 (wordsize) for now. But the S6000 variant will raise this to 16. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: cope with ram beginning at higher addressesJohannes Weiner2009-04-021-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current assumption of the memory code is that the first RAM PFN in the system is 0. Adjust the relevant code to play well with setups where memory starts at higher addresses, indicated by PLATFORM_DEFAULT_MEM_START. The new memory model looks like this: +----------+--+----------------------+----------------+ | | | | | | | | RAM | | | | | | | +----------+--+----------------------+----------------+ | | | | | +- PFN 0 | +- min_low_pfn +- max_low_pfn +- max_pfn | +- ARCH_PFN_OFFSET +- PLATFORM_DEFAULT_MEM_START >> PAGE_SIZE The memory map contains pages starting from pfn ARCH_PFN_OFFSET up to max_low_pfn. The only zone used right now will span exactly the same region. Usually, ARCH_PFN_OFFSET and min_low_pfn are the same value. Handle them separately for robustness. Gapping pages will be in the memory map but marked as reserved and won't be touched. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: remove redefinition of XCHAL_MMU_ASID_BITSJohannes Weiner2009-04-021-2/+2
| | | | | | | | | This constant is defined in all core headers. Remove the redundant definition which might error out if other includes lead to inclusion of <variant/core.h>. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* Merge branch 'header-fixes-for-linus' of ↵Linus Torvalds2009-03-261-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits) x86: headers cleanup - setup.h emu101k1.h: fix duplicate include of <linux/types.h> compiler-gcc4: conditionalize #error on __KERNEL__ remove __KERNEL_STRICT_NAMES make netfilter use strict integer types make drm headers use strict integer types make MTD headers use strict integer types make most exported headers use strict integer types make exported headers use strict posix types unconditionally include asm/types.h from linux/types.h make linux/types.h as assembly safe Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h headers_check fix cleanup: linux/reiserfs_fs.h headers_check fix cleanup: linux/nubus.h headers_check fix cleanup: linux/coda_psdev.h headers_check fix: x86, setup.h headers_check fix: x86, prctl.h headers_check fix: linux/reinserfs_fs.h headers_check fix: linux/socket.h headers_check fix: linux/nubus.h ... Manually fix trivial conflicts in: include/linux/netfilter/xt_limit.h include/linux/netfilter/xt_statistic.h
| * headers_check fix: xtensa, swab.hJaswinder Singh Rajput2009-02-011-1/+1
| | | | | | | | | | | | | | | | | | fix the following 'make headers_check' warnings: usr/include/asm-xtensa/swab.h:14: include of <linux/types.h> is preferred over <asm/types.h> usr/include/asm-xtensa/swab.h:19: found __[us]{8,16,32,64} type without #include <linux/types.h> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
* | net: new user space API for time stamping of incoming and outgoing packetsPatrick Ohly2009-02-151-0/+3
|/ | | | | | | | | | | | | | | | | | | | | | | User space can request hardware and/or software time stamping. Reporting of the result(s) via a new control message is enabled separately for each field in the message because some of the fields may require additional computation and thus cause overhead. User space can tell the different kinds of time stamps apart and choose what suits its needs. When a TX timestamp operation is requested, the TX skb will be cloned and the clone will be time stamped (in hardware or software) and added to the socket error queue of the skb, if the skb has a socket associated with it. The actual TX timestamp will reach userspace as a RX timestamp on the cloned packet. If timestamping is requested and no timestamping is done in the device driver (potentially this may use hardware timestamping), it will be done in software after the device's start_hard_xmit routine. Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* byteorder: make swab.h include asm/swab.h like a regular headerHarvey Harrison2009-01-142-4/+0
| | | | | | | | | 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>
* xtensa: introduce swab.hHarvey Harrison2009-01-073-69/+75
| | | | | | | Fixes compile breakage as linux/byteorder.h was removed. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6Linus Torvalds2009-01-072-2/+12
| | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6: xtensa: Update platform files to reflect new location of the header files. xtensa: switch to packed struct unaligned access implementation xtensa: Add xt2000 support files. xtensa: move headers files to arch/xtensa/include xtensa: use the new byteorder headers
* xtensa: switch to packed struct unaligned access implementationHarvey Harrison2008-11-111-6/+6
| | | | | | | Rely on byteorder.h checking for endianness. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: move headers files to arch/xtensa/includeChris Zankel2008-11-0698-0/+8054
Move all header files for xtensa to arch/xtensa/include and platform and variant header files to the appropriate arch/xtensa/platforms/ and arch/xtensa/variants/ directories. Moving the files gets also rid of all uses of symlinks in the Makefile. This has been completed already for the majority of the architectures and xtensa is one out of six missing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
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