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[4/8] target/ppc/power8-pmu-insn-cnt: add pmu_inc_pmc2()

Message ID 20211222134520.587877-5-danielhb413@gmail.com
State Superseded
Headers show
Series Re-write PPC64 PMU instruction count using TCG Ops | expand

Commit Message

Daniel Henrique Barboza Dec. 22, 2021, 1:45 p.m. UTC 
Add PMC2 PM_INST_CMPL count with TCG Ops.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 target/ppc/power8-pmu-insn-cnt.c.inc | 32 ++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
diff mbox series

Patch

diff --git a/target/ppc/power8-pmu-insn-cnt.c.inc b/target/ppc/power8-pmu-insn-cnt.c.inc
index 3661fb0022..be0e2dc3b5 100644
--- a/target/ppc/power8-pmu-insn-cnt.c.inc
+++ b/target/ppc/power8-pmu-insn-cnt.c.inc
@@ -14,6 +14,7 @@ 
 
 #define MMCR1_PMC1_INS_CNT        0x02000000
 #define MMCR1_PMC1_INS_CNT2       0xFE000000
+#define MMCR1_PMC2_INS_CNT        0x00020000
 
 /*
  * Increments PMC1 checking if MMCR1_PMC1SEL has one of the following
@@ -61,6 +62,36 @@  static void pmu_inc_pmc1(DisasContext *ctx)
     tcg_temp_free(t2);
 }
 
+/*
+ * Increments PMC2 checking if MMCR1_PMC2SEL = 0x02
+ * (PM_INST_CMPL event).
+ *
+ * This function assumes that MMCR0_FC14 is cleared.
+ */
+static void pmu_inc_pmc2(DisasContext *ctx)
+{
+    TCGv t0, t1;
+    TCGLabel *l_skip_pmc;
+
+    /* PMC2 will be incremented if MMCR1_PMC2SEL is 0x2 */
+    l_skip_pmc = gen_new_label();
+
+    t0 = tcg_temp_new();
+    gen_load_spr(t0, SPR_POWER_MMCR1);
+    tcg_gen_andi_tl(t0, t0, MMCR1_PMC2_INS_CNT);
+    tcg_gen_brcondi_tl(TCG_COND_NE, t0, MMCR1_PMC2_INS_CNT, l_skip_pmc);
+
+    t1 = tcg_temp_new();
+    gen_load_spr(t1, SPR_POWER_PMC2);
+    tcg_gen_addi_tl(t1, t1, ctx->base.num_insns);
+    gen_store_spr(SPR_POWER_PMC2, t1);
+
+    gen_set_label(l_skip_pmc);
+
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
+}
+
 /*
  * Increments PMC5 if MMCR0_FC is cleared.
  */
@@ -127,6 +158,7 @@  static void pmu_count_insns(DisasContext *ctx)
     tcg_gen_brcondi_tl(TCG_COND_EQ, t_mmcr1, 0x0, l_skip_pmc14);
 
     pmu_inc_pmc1(ctx);
+    pmu_inc_pmc2(ctx);
 
     gen_set_label(l_skip_pmc14);