target/ppc: Add POWER10 DD1.0 model information

This includes in QEMU a new CPU model for the POWER10 processor with
the same capabilities of a POWER9 process. The model will be extended
when support is completed.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191205184454.10722-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

5 files changed, 237 insertions, 6 deletions

diff --git a/target/ppc/compat.c b/target/ppc/compat.c
index 7de4bf3..f48df25 100644
--- a/target/ppc/compat.c
+++ b/target/ppc/compat.c
@@ -51,36 +51,38 @@ static const CompatInfo compat_table[] = {
     { /* POWER6, ISA2.05 */
         .name = "power6",
         .pvr = CPU_POWERPC_LOGICAL_2_05,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 |
-               PCR_COMPAT_2_05 | PCR_TM_DIS | PCR_VSX_DIS,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+               PCR_COMPAT_2_06 | PCR_COMPAT_2_05 | PCR_TM_DIS | PCR_VSX_DIS,
         .pcr_level = PCR_COMPAT_2_05,
         .max_vthreads = 2,
     },
     { /* POWER7, ISA2.06 */
         .name = "power7",
         .pvr = CPU_POWERPC_LOGICAL_2_06,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+               PCR_COMPAT_2_06 | PCR_TM_DIS,
         .pcr_level = PCR_COMPAT_2_06,
         .max_vthreads = 4,
     },
     {
         .name = "power7+",
         .pvr = CPU_POWERPC_LOGICAL_2_06_PLUS,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+               PCR_COMPAT_2_06 | PCR_TM_DIS,
         .pcr_level = PCR_COMPAT_2_06,
         .max_vthreads = 4,
     },
     { /* POWER8, ISA2.07 */
         .name = "power8",
         .pvr = CPU_POWERPC_LOGICAL_2_07,
-        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07,
         .pcr_level = PCR_COMPAT_2_07,
         .max_vthreads = 8,
     },
     { /* POWER9, ISA3.00 */
         .name = "power9",
         .pvr = CPU_POWERPC_LOGICAL_3_00,
-        .pcr = PCR_COMPAT_3_00,
+        .pcr = PCR_COMPAT_3_10 | PCR_COMPAT_3_00,
         .pcr_level = PCR_COMPAT_3_00,
         /*
          * POWER9 hardware only supports 4 threads / core, but this
@@ -91,6 +93,13 @@ static const CompatInfo compat_table[] = {
          */
         .max_vthreads = 8,
     },
+    { /* POWER10, ISA3.10 */
+        .name = "power10",
+        .pvr = CPU_POWERPC_LOGICAL_3_10,
+        .pcr = PCR_COMPAT_3_10,
+        .pcr_level = PCR_COMPAT_3_10,
+        .max_vthreads = 8,
+    },
 };
 
 static const CompatInfo *compat_by_pvr(uint32_t pvr)
diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
index 086548e..4ad1686 100644
--- a/target/ppc/cpu-models.c
+++ b/target/ppc/cpu-models.c
@@ -774,6 +774,8 @@
                 "POWER9 v1.0")
     POWERPC_DEF("power9_v2.0",   CPU_POWERPC_POWER9_DD20,            POWER9,
                 "POWER9 v2.0")
+    POWERPC_DEF("power10_v1.0",  CPU_POWERPC_POWER10_DD1,            POWER10,
+                "POWER10 v1.0")
 #endif /* defined (TARGET_PPC64) */
 
 /***************************************************************************/
@@ -950,6 +952,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
     { "power8", "power8_v2.0" },
     { "power8nvl", "power8nvl_v1.0" },
     { "power9", "power9_v2.0" },
+    { "power10", "power10_v1.0" },
 #endif
 
     /* Generic PowerPCs */
diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
index 4fdb730..ce750b2 100644
--- a/target/ppc/cpu-models.h
+++ b/target/ppc/cpu-models.h
@@ -373,6 +373,8 @@ enum {
     CPU_POWERPC_POWER9_BASE        = 0x004E0000,
     CPU_POWERPC_POWER9_DD1         = 0x004E0100,
     CPU_POWERPC_POWER9_DD20        = 0x004E1200,
+    CPU_POWERPC_POWER10_BASE       = 0x00800000,
+    CPU_POWERPC_POWER10_DD1        = 0x00800100,
     CPU_POWERPC_970_v22            = 0x00390202,
     CPU_POWERPC_970FX_v10          = 0x00391100,
     CPU_POWERPC_970FX_v20          = 0x003C0200,
@@ -409,6 +411,7 @@ enum {
     CPU_POWERPC_LOGICAL_2_06_PLUS  = 0x0F100003,
     CPU_POWERPC_LOGICAL_2_07       = 0x0F000004,
     CPU_POWERPC_LOGICAL_3_00       = 0x0F000005,
+    CPU_POWERPC_LOGICAL_3_10       = 0x0F000006,
 };
 
 /* System version register (used on MPC 8xxx)                                */
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 60cf030..fbec1b0 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -2364,6 +2364,7 @@ enum {
     PCR_COMPAT_2_06     = PPC_BIT(61),
     PCR_COMPAT_2_07     = PPC_BIT(60),
     PCR_COMPAT_3_00     = PPC_BIT(59),
+    PCR_COMPAT_3_10     = PPC_BIT(58),
     PCR_VEC_DIS         = PPC_BIT(0), /* Vec. disable (bit NA since POWER8) */
     PCR_VSX_DIS         = PPC_BIT(1), /* VSX disable (bit NA since POWER8) */
     PCR_TM_DIS          = PPC_BIT(2), /* Trans. memory disable (POWER8) */
diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c
index 64a8380..7364d36 100644
--- a/target/ppc/translate_init.inc.c
+++ b/target/ppc/translate_init.inc.c
@@ -3354,6 +3354,11 @@ static void init_excp_POWER9(CPUPPCState *env)
 #endif
 }
 
+static void init_excp_POWER10(CPUPPCState *env)
+{
+    init_excp_POWER9(env);
+}
+
 #endif
 
 /*****************************************************************************/
@@ -8996,6 +9001,216 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
     pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
 }
 
+#ifdef CONFIG_SOFTMMU
+/*
+ * Radix pg sizes and AP encodings for dt node ibm,processor-radix-AP-encodings
+ * Encoded as array of int_32s in the form:
+ *  0bxxxyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
+ *  x -> AP encoding
+ *  y -> radix mode supported page size (encoded as a shift)
+ */
+static struct ppc_radix_page_info POWER10_radix_page_info = {
+    .count = 4,
+    .entries = {
+        0x0000000c, /*  4K - enc: 0x0 */
+        0xa0000010, /* 64K - enc: 0x5 */
+        0x20000015, /*  2M - enc: 0x1 */
+        0x4000001e  /*  1G - enc: 0x2 */
+    }
+};
+#endif /* CONFIG_SOFTMMU */
+
+static void init_proc_POWER10(CPUPPCState *env)
+{
+    /* Common Registers */
+    init_proc_book3s_common(env);
+    gen_spr_book3s_207_dbg(env);
+
+    /* POWER8 Specific Registers */
+    gen_spr_book3s_ids(env);
+    gen_spr_amr(env);
+    gen_spr_iamr(env);
+    gen_spr_book3s_purr(env);
+    gen_spr_power5p_common(env);
+    gen_spr_power5p_lpar(env);
+    gen_spr_power5p_ear(env);
+    gen_spr_power6_common(env);
+    gen_spr_power6_dbg(env);
+    gen_spr_power8_tce_address_control(env);
+    gen_spr_power8_ids(env);
+    gen_spr_power8_ebb(env);
+    gen_spr_power8_fscr(env);
+    gen_spr_power8_pmu_sup(env);
+    gen_spr_power8_pmu_user(env);
+    gen_spr_power8_tm(env);
+    gen_spr_power8_pspb(env);
+    gen_spr_vtb(env);
+    gen_spr_power8_ic(env);
+    gen_spr_power8_book4(env);
+    gen_spr_power8_rpr(env);
+    gen_spr_power9_mmu(env);
+
+    /* POWER9 Specific registers */
+    spr_register_kvm(env, SPR_TIDR, "TIDR", NULL, NULL,
+                     spr_read_generic, spr_write_generic,
+                     KVM_REG_PPC_TIDR, 0);
+
+    /* FIXME: Filter fields properly based on privilege level */
+    spr_register_kvm_hv(env, SPR_PSSCR, "PSSCR", NULL, NULL, NULL, NULL,
+                        spr_read_generic, spr_write_generic,
+                        KVM_REG_PPC_PSSCR, 0);
+
+    /* env variables */
+    env->dcache_line_size = 128;
+    env->icache_line_size = 128;
+
+    /* Allocate hardware IRQ controller */
+    init_excp_POWER10(env);
+    ppcPOWER9_irq_init(env_archcpu(env));
+}
+
+static bool ppc_pvr_match_power10(PowerPCCPUClass *pcc, uint32_t pvr)
+{
+    if ((pvr & CPU_POWERPC_POWER_SERVER_MASK) == CPU_POWERPC_POWER10_BASE) {
+        return true;
+    }
+    return false;
+}
+
+static bool cpu_has_work_POWER10(CPUState *cs)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
+    CPUPPCState *env = &cpu->env;
+
+    if (cs->halted) {
+        uint64_t psscr = env->spr[SPR_PSSCR];
+
+        if (!(cs->interrupt_request & CPU_INTERRUPT_HARD)) {
+            return false;
+        }
+
+        /* If EC is clear, just return true on any pending interrupt */
+        if (!(psscr & PSSCR_EC)) {
+            return true;
+        }
+        /* External Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_EXT)) &&
+            (env->spr[SPR_LPCR] & LPCR_EEE)) {
+            bool heic = !!(env->spr[SPR_LPCR] & LPCR_HEIC);
+            if (heic == 0 || !msr_hv || msr_pr) {
+                return true;
+            }
+        }
+        /* Decrementer Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_DECR)) &&
+            (env->spr[SPR_LPCR] & LPCR_DEE)) {
+            return true;
+        }
+        /* Machine Check or Hypervisor Maintenance Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_MCK |
+            1u << PPC_INTERRUPT_HMI)) && (env->spr[SPR_LPCR] & LPCR_OEE)) {
+            return true;
+        }
+        /* Privileged Doorbell Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_DOORBELL)) &&
+            (env->spr[SPR_LPCR] & LPCR_PDEE)) {
+            return true;
+        }
+        /* Hypervisor Doorbell Exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_HDOORBELL)) &&
+            (env->spr[SPR_LPCR] & LPCR_HDEE)) {
+            return true;
+        }
+        /* Hypervisor virtualization exception */
+        if ((env->pending_interrupts & (1u << PPC_INTERRUPT_HVIRT)) &&
+            (env->spr[SPR_LPCR] & LPCR_HVEE)) {
+            return true;
+        }
+        if (env->pending_interrupts & (1u << PPC_INTERRUPT_RESET)) {
+            return true;
+        }
+        return false;
+    } else {
+        return msr_ee && (cs->interrupt_request & CPU_INTERRUPT_HARD);
+    }
+}
+
+POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
+
+    dc->fw_name = "PowerPC,POWER10";
+    dc->desc = "POWER10";
+    dc->props = powerpc_servercpu_properties;
+    pcc->pvr_match = ppc_pvr_match_power10;
+    pcc->pcr_mask = PCR_COMPAT_2_05 | PCR_COMPAT_2_06 | PCR_COMPAT_2_07 |
+                    PCR_COMPAT_3_00;
+    pcc->pcr_supported = PCR_COMPAT_3_10 | PCR_COMPAT_3_00 | PCR_COMPAT_2_07 |
+                         PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
+    pcc->init_proc = init_proc_POWER10;
+    pcc->check_pow = check_pow_nocheck;
+    cc->has_work = cpu_has_work_POWER10;
+    pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
+                       PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
+                       PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
+                       PPC_FLOAT_FRSQRTES |
+                       PPC_FLOAT_STFIWX |
+                       PPC_FLOAT_EXT |
+                       PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ |
+                       PPC_MEM_SYNC | PPC_MEM_EIEIO |
+                       PPC_MEM_TLBSYNC |
+                       PPC_64B | PPC_64H | PPC_64BX | PPC_ALTIVEC |
+                       PPC_SEGMENT_64B | PPC_SLBI |
+                       PPC_POPCNTB | PPC_POPCNTWD |
+                       PPC_CILDST;
+    pcc->insns_flags2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX |
+                        PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 |
+                        PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206 |
+                        PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207 |
+                        PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
+                        PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 |
+                        PPC2_TM | PPC2_ISA300 | PPC2_PRCNTL;
+    pcc->msr_mask = (1ull << MSR_SF) |
+                    (1ull << MSR_SHV) |
+                    (1ull << MSR_TM) |
+                    (1ull << MSR_VR) |
+                    (1ull << MSR_VSX) |
+                    (1ull << MSR_EE) |
+                    (1ull << MSR_PR) |
+                    (1ull << MSR_FP) |
+                    (1ull << MSR_ME) |
+                    (1ull << MSR_FE0) |
+                    (1ull << MSR_SE) |
+                    (1ull << MSR_DE) |
+                    (1ull << MSR_FE1) |
+                    (1ull << MSR_IR) |
+                    (1ull << MSR_DR) |
+                    (1ull << MSR_PMM) |
+                    (1ull << MSR_RI) |
+                    (1ull << MSR_LE);
+    pcc->mmu_model = POWERPC_MMU_3_00;
+#if defined(CONFIG_SOFTMMU)
+    pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
+    /* segment page size remain the same */
+    pcc->hash64_opts = &ppc_hash64_opts_POWER7;
+    pcc->radix_page_info = &POWER10_radix_page_info;
+    pcc->lrg_decr_bits = 56;
+#endif
+    pcc->excp_model = POWERPC_EXCP_POWER9;
+    pcc->bus_model = PPC_FLAGS_INPUT_POWER9;
+    pcc->bfd_mach = bfd_mach_ppc64;
+    pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
+                 POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
+                 POWERPC_FLAG_BUS_CLK | POWERPC_FLAG_CFAR |
+                 POWERPC_FLAG_VSX | POWERPC_FLAG_TM;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x8000;
+    pcc->interrupts_big_endian = ppc_cpu_interrupts_big_endian_lpcr;
+    pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
+}
+
 #if !defined(CONFIG_USER_ONLY)
 void cpu_ppc_set_vhyp(PowerPCCPU *cpu, PPCVirtualHypervisor *vhyp)
 {