summaryrefslogtreecommitdiffstats
path: root/arch/sh/kernel/traps_32.c
Commit message (Collapse)AuthorAgeFilesLines
* sh2(A) exception handler updateYoshinori Sato2008-07-281-0/+4
| | | | | | | | | | | | | | | | This patch is By sh2 - Remove duplicate code - Reduce stack usage - Cleanup and little optimize By sh2a - Add missing handler(256 to 511) - Use sh2a instructions handler Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: arch/sh/kernel/traps_32.c needs asm/fpu.hAndrew Morton2008-04-161-0/+1
| | | | | | | | arch/sh/kernel/traps_32.c: In function `do_reserved_inst': arch/sh/kernel/traps_32.c:667: error: implicit declaration of function `do_fpu_inst' Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: trapped io support V2Magnus Damm2008-02-141-25/+34
| | | | | | | | | | | | | | | | | | | The idea is that we want to get rid of the in/out/readb/writeb callbacks from the machvec and replace that with simple inline read and write operations to memory. Fast and simple for most hardware devices (think pci). Some devices require special treatment though - like 16-bit only CF devices - so we need to have some method to hook in callbacks. This patch makes it possible to add a per-device trap generating filter. This way we can get maximum performance of sane hardware - which doesn't need this filter - and crappy hardware works but gets punished by a performance hit. V2 changes things around a bit and replaces io access callbacks with a simple minimum_bus_width value. In the future we can add stride as well. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: use opcode_t and enable unaligned code for sh2aMagnus Damm2008-02-141-34/+25
| | | | | | | | This patch converts the unaligned access handling code to use opcode_t instead of u16. While at it, enable unaligned access handling for sh2a. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: add byte support to the sign extension codeMagnus Damm2008-02-141-1/+11
| | | | | | | | | This patch adds byte support to the sign extension code. Unaligned access traps should never be generated on 8-bit io operations, but we will use this code for trapped io and we do need byte support there. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: break out unaligned sign extension codeMagnus Damm2008-02-141-45/+23
| | | | | | | Break out the sign extension code since it's used in multiple places. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SH-2A FPU support.Paul Mundt2008-01-281-9/+4
| | | | | Signed-off-by: Kieran Bingham <kbingham@mpc-data.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Share bug/debug traps across _32 and _64.Paul Mundt2008-01-281-24/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Move in the SH-5 traps.c impl.Paul Mundt2008-01-281-0/+947
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 09:58:54 +0000