diff options
| author | Roman Kapl <rka@sysgo.com> | 2018-09-21 08:59:07 +0200 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2018-11-08 12:04:40 +1100 |
| commit | 50728199c549467b01609ddbb831237f72c8f3f6 (patch) | |
| tree | b34cccca349829897bdc60c7251e801e3bb38962 /target/ppc/helper.h | |
| parent | 4de6bb0c02ad3f0ec48f0f84ba1a65ab06e81b86 (diff) | |
target/ppc: add external PID support
External PID is a mechanism present on BookE 2.06 that enables application to
store/load data from different address spaces. There are special version of some
instructions, which operate on alternate address space, which is specified in
the EPLC/EPSC regiser.
This implementation uses two additional MMU modes (mmu_idx) to provide the
address space for the load and store instructions. The QEMU TLB fill code was
modified to recognize these MMU modes and use the values in EPLC/EPSC to find
the proper entry in he PPC TLB. These two QEMU TLBs are also flushed on each
write to EPLC/EPSC.
Following instructions are implemented: dcbfep dcbstep dcbtep dcbtstep dcbzep
dcbzlep icbiep lbepx ldepx lfdepx lhepx lwepx stbepx stdepx stfdepx sthepx
stwepx.
Following vector instructions are not: evlddepx evstddepx lvepx lvepxl stvepx
stvepxl.
Signed-off-by: Roman Kapl <rka@sysgo.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/helper.h')
| -rw-r--r-- | target/ppc/helper.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 7a1481fd0b..c7de04e068 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -29,7 +29,9 @@ DEF_HELPER_4(lsw, void, env, tl, i32, i32) DEF_HELPER_5(lswx, void, env, tl, i32, i32, i32) DEF_HELPER_FLAGS_4(stsw, TCG_CALL_NO_WG, void, env, tl, i32, i32) DEF_HELPER_FLAGS_3(dcbz, TCG_CALL_NO_WG, void, env, tl, i32) +DEF_HELPER_FLAGS_3(dcbzep, TCG_CALL_NO_WG, void, env, tl, i32) DEF_HELPER_FLAGS_2(icbi, TCG_CALL_NO_WG, void, env, tl) +DEF_HELPER_FLAGS_2(icbiep, TCG_CALL_NO_WG, void, env, tl) DEF_HELPER_5(lscbx, tl, env, tl, i32, i32, i32) #if defined(TARGET_PPC64) @@ -658,6 +660,8 @@ DEF_HELPER_2(booke206_tlbilx1, void, env, tl) DEF_HELPER_2(booke206_tlbilx3, void, env, tl) DEF_HELPER_2(booke206_tlbflush, void, env, tl) DEF_HELPER_3(booke_setpid, void, env, i32, tl) +DEF_HELPER_2(booke_set_eplc, void, env, tl) +DEF_HELPER_2(booke_set_epsc, void, env, tl) DEF_HELPER_2(6xx_tlbd, void, env, tl) DEF_HELPER_2(6xx_tlbi, void, env, tl) DEF_HELPER_2(74xx_tlbd, void, env, tl) |