Commit Graph

215 Commits

Author SHA1 Message Date
Edgar E. Iglesias 3c50a71fc9 microblaze: MMU shows more respect to synthesis config.
The microblaze MMU can be synthesized in different configurations.
Have the MMU model show more respect to the chosen configuration.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 13:04:02 +02:00
Edgar E. Iglesias 968a40f6fa microblaze: Trap on unaligned data accesses.
Untested...

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 12:59:46 +02:00
Edgar E. Iglesias 821ebb33e4 microblaze: Trap on divizions by zero.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 12:52:01 +02:00
Edgar E. Iglesias ee7dbcf834 microblaze: Correct mfs into r0.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 11:18:55 +02:00
Edgar E. Iglesias 1567a00568 microblaze: Catch illegal insns and privilege violations.
Raise illegal instruction exceptions when executing instructions that
require units not available on the particulare microblaze configuration.

Also trap priviliege violations made by userspace.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 11:12:30 +02:00
Edgar E. Iglesias cedb936bfc microblaze: Add infrastructure for supporting hw exceptions.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 10:25:00 +02:00
Edgar E. Iglesias a75cf0c52d microblaze: Clear exception in dslot ESR bit if not in dslot.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 10:15:17 +02:00
Edgar E. Iglesias 21d2063605 microblaze: Correct MMU debug log.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03 10:13:08 +02:00
Nathan Froyd 0b5c1ce846 cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signal
handle_cpu_signal is very nearly copy-paste code for each target, with a
few minor variations.  This patch sets up appropriate defaults for a
generic handle_cpu_signal and provides overrides for particular targets
that did things differently.  Fixing things like the persistent (XXX:
use sigsetjmp) should now become somewhat easier.

Previous comments on this patch suggest that the "activate soft MMU for
this block" comments refer to defunct functionality.  I have removed
such blocks for the appropriate targets in this patch.

Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24 08:21:42 -05:00
Blue Swirl 8167ee8839 Update to a hopefully more future proof FSF address
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16 20:47:01 +00:00
Edgar E. Iglesias d0f3654f83 microblaze: Make writes to MMU_ZPR flush the TLB.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27 01:19:58 +02:00
Edgar E. Iglesias 6b2fce907d microblaze: Correct typo.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27 01:10:26 +02:00
Edgar E. Iglesias 6a8b1ae202 microblaze: Add petalogix s3a1800dsp MMU linux ref-design.
This setup was designed by petalogix and is supported by upstream linux.
The design targets a xilinx spartan-3a-1800 dsp board with MMU.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:56 +02:00
Edgar E. Iglesias afeeceb0d7 microblaze: Add MMU emulation.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:34 +02:00
Edgar E. Iglesias 4acb54baa6 microblaze: Add translation routines.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:10:11 +02:00