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MMU: Remove software-loaded dTLB mode

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This removes the hack where the tlbie instruction could be used to
load entries directly into the dTLB, because we don't report the
correct DSISR values for accesses that hit software-loaded dTLB
entries and have privilege or permission errors.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras 2020-05-07 10:17:08 +10:00
parent 3eb07dc637
commit dee3783d79
1 changed files with 0 additions and 2 deletions
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dcache.vhdl
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@ -586,8 +586,6 @@ begin
if r0_valid = '1' and r0.tlbie = '1' then
if r0.req.addr(11 downto 10) /= "00" then
tlbia := '1';
elsif r0.req.addr(9) = '1' then
tlbwe := '1';
else
tlbie := '1';
end if;