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ppc: Don't update NIP in lmw/stmw/icbi 

Instead, pass GETPC() result to the corresponding helpers.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-07-27 16:56:31 +10:00 committed by David Gibson
parent e41029b378
commit af6d376ea1
2 changed files with 6 additions and 11 deletions
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11
target-ppc/mem_helper.c
View File

@ -57,9 +57,9 @@ void helper_lmw(CPUPPCState *env, target_ulong addr, uint32_t reg)
{
for (; reg < 32; reg++) {
if (needs_byteswap(env)) {
env->gpr[reg] = bswap32(cpu_ldl_data(env, addr));
env->gpr[reg] = bswap32(cpu_ldl_data_ra(env, addr, GETPC()));
} else {
env->gpr[reg] = cpu_ldl_data(env, addr);
env->gpr[reg] = cpu_ldl_data_ra(env, addr, GETPC());
}
addr = addr_add(env, addr, 4);
}
@ -69,9 +69,10 @@ void helper_stmw(CPUPPCState *env, target_ulong addr, uint32_t reg)
{
for (; reg < 32; reg++) {
if (needs_byteswap(env)) {
cpu_stl_data(env, addr, bswap32((uint32_t)env->gpr[reg]));
cpu_stl_data_ra(env, addr, bswap32((uint32_t)env->gpr[reg]),
GETPC());
} else {
cpu_stl_data(env, addr, (uint32_t)env->gpr[reg]);
cpu_stl_data_ra(env, addr, (uint32_t)env->gpr[reg], GETPC());
}
addr = addr_add(env, addr, 4);
}
@ -178,7 +179,7 @@ void helper_icbi(CPUPPCState *env, target_ulong addr)
* (not a fetch) by the MMU. To be sure it will be so,
* do the load "by hand".
*/
cpu_ldl_data(env, addr);
cpu_ldl_data_ra(env, addr, GETPC());
}
/* XXX: to be tested */

6
target-ppc/translate.c
View File

@ -2869,8 +2869,6 @@ static void gen_lmw(DisasContext *ctx)
TCGv t0;
TCGv_i32 t1;
gen_set_access_type(ctx, ACCESS_INT);
/* NIP cannot be restored if the memory exception comes from an helper */
gen_update_nip(ctx, ctx->nip - 4);
t0 = tcg_temp_new();
t1 = tcg_const_i32(rD(ctx->opcode));
gen_addr_imm_index(ctx, t0, 0);
@ -2885,8 +2883,6 @@ static void gen_stmw(DisasContext *ctx)
TCGv t0;
TCGv_i32 t1;
gen_set_access_type(ctx, ACCESS_INT);
/* NIP cannot be restored if the memory exception comes from an helper */
gen_update_nip(ctx, ctx->nip - 4);
t0 = tcg_temp_new();
t1 = tcg_const_i32(rS(ctx->opcode));
gen_addr_imm_index(ctx, t0, 0);
@ -4109,8 +4105,6 @@ static void gen_icbi(DisasContext *ctx)
{
TCGv t0;
gen_set_access_type(ctx, ACCESS_CACHE);
/* NIP cannot be restored if the memory exception comes from an helper */
gen_update_nip(ctx, ctx->nip - 4);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_helper_icbi(cpu_env, t0);