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target/ppc: Fix embedded memory barriers

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Memory barriers are supposed to do something on BookE systems, these
were probably just missed during MTTCG enablement, maybe no targets
support SMP. Either way, add proper BookE implementations.

Reviewed-by: Chinmay Rath <rathc@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Nicholas Piggin 2024-05-01 23:04:33 +10:00
parent 13f5086783
commit ab4f174bae
1 changed files with 2 additions and 2 deletions
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4
target/ppc/translate/misc-impl.c.inc
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@ -34,8 +34,7 @@ static bool trans_SYNC(DisasContext *ctx, arg_X_sync *a)
*/
if (!(ctx->insns_flags & PPC_MEM_SYNC)) {
if (ctx->insns_flags & PPC_BOOKE) {
/* msync replaces sync on 440, interpreted as nop */
/* XXX: this also catches e200 */
tcg_gen_mb(bar | TCG_BAR_SC);
return true;
}
@ -75,6 +74,7 @@ static bool trans_EIEIO(DisasContext *ctx, arg_EIEIO *a)
if (!(ctx->insns_flags & PPC_MEM_EIEIO)) {
if ((ctx->insns_flags & PPC_BOOKE) ||
(ctx->insns_flags2 & PPC2_BOOKE206)) {
tcg_gen_mb(bar | TCG_BAR_SC);
return true;
}
return false;