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2008-09-21sh: Move lookup_exception_vector() out to asm/system_32.h.Paul Mundt1-12/+4
There are other places where we want to have access to the trap/exception number, so move out the lookup_exception_vector() helper. While we're at it, refactor it slightly to return the vector instead. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-17sh: Fix up fpu emu build.Paul Mundt1-5/+3
The addition of the kprobes code pushed down a variable declaration, clean it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: Add kprobes support.Chris Smith1-0/+5
Initial support for kprobes/kretprobes for 32-bit SH platforms. [ General cleanup and some rework for the kretprobe hash lock. -- PFM ] Signed-off-by: Chris Smith <chris.smith@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: fixup many sparse errors.Paul Mundt1-33/+35
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-28sh2(A) exception handler updateYoshinori Sato1-0/+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>
2008-04-16sh: arch/sh/kernel/traps_32.c needs asm/fpu.hAndrew Morton1-0/+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>
2008-02-14sh: trapped io support V2Magnus Damm1-25/+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>
2008-02-14sh: use opcode_t and enable unaligned code for sh2aMagnus Damm1-34/+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>
2008-02-14sh: add byte support to the sign extension codeMagnus Damm1-1/+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>
2008-02-14sh: break out unaligned sign extension codeMagnus Damm1-45/+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>
2008-01-28sh: SH-2A FPU support.Paul Mundt1-9/+4
Signed-off-by: Kieran Bingham <kbingham@mpc-data.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Share bug/debug traps across _32 and _64.Paul Mundt1-24/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move in the SH-5 traps.c impl.Paul Mundt1-0/+947
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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