tree 2b4ad6f282b1d949665ef4e433b0b077e293c3ca
parent 866ead9d171e4f1a6bec9a358a2e7bd906e150c5
author Ovidiu Panait <ovidiu.panait@windriver.com> 1644739761 +0200
committer Michal Simek <michal.simek@xilinx.com> 1644927103 +0100

microblaze: exception: fix delay slot exception handling

The switch statement in _hw_exception_handler() only covers the
rightmost 5 bits that encode the exception cause:
switch (state & 0x1f)
{
...
}

For this reason, the "0x1000" case will never be reached, because the 13th
bit was zeroed out. To fix this, move delay slot exception handling before
the switch statement (delay slot (DS) bit in Exception Status Register is
independent of the exception cause (EC)).

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Link: https://lore.kernel.org/r/20220213080925.1548411-3-ovidiu.panait@windriver.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>