From 8b3d1c49a9f0f315d2b292c1791430c0f382afa4 Mon Sep 17 00:00:00 2001 From: Leandro Lupori Date: Tue, 25 Oct 2022 17:24:23 -0300 Subject: [PATCH] target/ppc: Add new PMC HFLAGS Add 2 new PMC related HFLAGS: - HFLAGS_PMCJCE - value of MMCR0 PMCjCE bit - HFLAGS_PMC_OTHER - set if a PMC other than PMC5-6 is enabled These flags allow further optimization of PMC5 update code, by allowing frequently tested conditions to be performed at translation time. Signed-off-by: Leandro Lupori Reviewed-by: Daniel Henrique Barboza Message-Id: <20221025202424.195984-3-leandro.lupori@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza --- target/ppc/cpu.h | 4 +++- target/ppc/helper_regs.c | 6 ++++++ target/ppc/translate.c | 4 ++++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index cc2d0305ff..81d4263a07 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -696,7 +696,9 @@ enum { HFLAGS_PR = 14, /* MSR_PR */ HFLAGS_PMCC0 = 15, /* MMCR0 PMCC bit 0 */ HFLAGS_PMCC1 = 16, /* MMCR0 PMCC bit 1 */ - HFLAGS_INSN_CNT = 17, /* PMU instruction count enabled */ + HFLAGS_PMCJCE = 17, /* MMCR0 PMCjCE bit */ + HFLAGS_PMC_OTHER = 18, /* PMC other than PMC5-6 is enabled */ + HFLAGS_INSN_CNT = 19, /* PMU instruction count enabled */ HFLAGS_VSX = 23, /* MSR_VSX if cpu has VSX */ HFLAGS_VR = 25, /* MSR_VR if cpu has VRE */ diff --git a/target/ppc/helper_regs.c b/target/ppc/helper_regs.c index 2e85e124ab..c0aee5855b 100644 --- a/target/ppc/helper_regs.c +++ b/target/ppc/helper_regs.c @@ -109,6 +109,9 @@ static uint32_t hreg_compute_hflags_value(CPUPPCState *env) if (env->spr[SPR_POWER_MMCR0] & MMCR0_PMCC1) { hflags |= 1 << HFLAGS_PMCC1; } + if (env->spr[SPR_POWER_MMCR0] & MMCR0_PMCjCE) { + hflags |= 1 << HFLAGS_PMCJCE; + } #ifndef CONFIG_USER_ONLY if (!env->has_hv_mode || (msr & (1ull << MSR_HV))) { @@ -119,6 +122,9 @@ static uint32_t hreg_compute_hflags_value(CPUPPCState *env) if (env->pmc_ins_cnt) { hflags |= 1 << HFLAGS_INSN_CNT; } + if (env->pmc_ins_cnt & 0x1e) { + hflags |= 1 << HFLAGS_PMC_OTHER; + } #endif /* diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 29e4b728e2..8d79522f98 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -177,6 +177,8 @@ struct DisasContext { bool hr; bool mmcr0_pmcc0; bool mmcr0_pmcc1; + bool mmcr0_pmcjce; + bool pmc_other; bool pmu_insn_cnt; ppc_spr_t *spr_cb; /* Needed to check rights for mfspr/mtspr */ int singlestep_enabled; @@ -7512,6 +7514,8 @@ static void ppc_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) ctx->hr = (hflags >> HFLAGS_HR) & 1; ctx->mmcr0_pmcc0 = (hflags >> HFLAGS_PMCC0) & 1; ctx->mmcr0_pmcc1 = (hflags >> HFLAGS_PMCC1) & 1; + ctx->mmcr0_pmcjce = (hflags >> HFLAGS_PMCJCE) & 1; + ctx->pmc_other = (hflags >> HFLAGS_PMC_OTHER) & 1; ctx->pmu_insn_cnt = (hflags >> HFLAGS_INSN_CNT) & 1; ctx->singlestep_enabled = 0;