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* arch: c6x: mm: include "asm/uaccess.h" to pass compilingChen Gang2013-07-21
| | | | | | | | | | | | | | | | | | | commit fe74650166dd6905b0cf66594eb79222dc9d7109 upstream. Need include "asm/uaccess.h" to pass compiling. The related error (with allmodconfig): arch/c6x/mm/init.c: In function `paging_init': arch/c6x/mm/init.c:46:2: error: implicit declaration of function `set_fs' [-Werror=implicit-function-declaration] arch/c6x/mm/init.c:46:9: error: `KERNEL_DS' undeclared (first use in this function) arch/c6x/mm/init.c:46:9: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mm/c6x: use common help functions to free reserved pagesJiang Liu2013-04-29
| | | | | | | | | | Use common help functions to free reserved pages. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* C6X: memory management and DMA supportAurelien Jacquiot2011-10-06
| | | | | | | | | | | | | | Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter <msalter@redhat.com> The C6X architecture currently lacks an MMU so memory management is relatively simple. There is no bus snooping between L2 and main memory but coherent DMA memory is supported by making regions of main memory uncached. If such a region is desired, it can be specified on the commandline with a "memdma=" argument. Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* C6X: build infrastructureAurelien Jacquiot2011-10-06
Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter <msalter@redhat.com> Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>