[Qemu-devel] [PATCH v5 19/30] target-ppc: Refactor class init for POWER7/8

[Alexey Kardashevskiy <aik@ozlabs.ru>]

This extends init_proc_book3s_64 to support POWER7 and POWER8.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>

---
Changes:
v4:
* added g_assert_not_reached() to default path to catch errors earlier
---
 target-ppc/translate_init.c | 100 +++++++++++++++++++++++++++-----------------
 1 file changed, 61 insertions(+), 39 deletions(-)

diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index df90439..7eb02ac 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7276,6 +7276,9 @@ POWERPC_FAMILY(e600)(ObjectClass *oc, void *data)
 enum BOOK3S_CPU_TYPE {
     BOOK3S_CPU_970,
     BOOK3S_CPU_POWER5PLUS,
+    BOOK3S_CPU_POWER6,
+    BOOK3S_CPU_POWER7,
+    BOOK3S_CPU_POWER8
 };
 
 static int check_pow_970 (CPUPPCState *env)
@@ -7582,30 +7585,74 @@ static void init_proc_book3s_64(CPUPPCState *env, int version)
     gen_spr_book3s_pmu_sup(env);
     gen_spr_book3s_pmu_user(env);
     gen_spr_book3s_dbg(env);
-
-    gen_spr_970_hid(env);
-    gen_spr_970_hior(env);
-    gen_low_BATs(env);
     gen_spr_book3s_common(env);
-    gen_spr_970_pmu_sup(env);
-    gen_spr_970_pmu_user(env);
 
+    switch (version) {
+    case BOOK3S_CPU_970:
+    case BOOK3S_CPU_POWER5PLUS:
+        gen_spr_970_hid(env);
+        gen_spr_970_hior(env);
+        gen_low_BATs(env);
+        gen_spr_970_pmu_sup(env);
+        gen_spr_970_pmu_user(env);
+        break;
+    case BOOK3S_CPU_POWER7:
+    case BOOK3S_CPU_POWER8:
+        gen_spr_book3s_ids(env);
+        gen_spr_amr(env);
+        gen_spr_book3s_purr(env);
+        break;
+    default:
+        g_assert_not_reached();
+    }
     if (version >= BOOK3S_CPU_POWER5PLUS) {
+        gen_spr_power5p_common(env);
         gen_spr_power5p_lpar(env);
         gen_spr_power5p_ear(env);
     } else {
         gen_spr_970_lpar(env);
     }
-
-    gen_spr_970_dbg(env);
+    if (version == BOOK3S_CPU_970) {
+        gen_spr_970_dbg(env);
+    }
+    if (version >= BOOK3S_CPU_POWER6) {
+        gen_spr_power6_common(env);
+        gen_spr_power6_dbg(env);
+    }
+    if (version >= BOOK3S_CPU_POWER8) {
+        gen_spr_power8_tce_address_control(env);
+    }
 #if !defined(CONFIG_USER_ONLY)
-    env->slb_nr = 64;
+    switch (version) {
+    case BOOK3S_CPU_970:
+    case BOOK3S_CPU_POWER5PLUS:
+        env->slb_nr = 64;
+        break;
+    case BOOK3S_CPU_POWER7:
+    case BOOK3S_CPU_POWER8:
+    default:
+        env->slb_nr = 32;
+        break;
+    }
 #endif
-    init_excp_970(env);
+    /* Allocate hardware IRQ controller */
+    switch (version) {
+    case BOOK3S_CPU_970:
+    case BOOK3S_CPU_POWER5PLUS:
+        init_excp_970(env);
+        ppc970_irq_init(env);
+        break;
+    case BOOK3S_CPU_POWER7:
+    case BOOK3S_CPU_POWER8:
+        init_excp_POWER7(env);
+        ppcPOWER7_irq_init(env);
+        break;
+    default:
+        g_assert_not_reached();
+    }
+
     env->dcache_line_size = 128;
     env->icache_line_size = 128;
-    /* Allocate hardware IRQ controller */
-    ppc970_irq_init(env);
 }
 
 static void init_proc_970(CPUPPCState *env)
@@ -7783,29 +7830,7 @@ static Property powerpc_servercpu_properties[] = {
 
 static void init_proc_POWER7 (CPUPPCState *env)
 {
-    gen_spr_ne_601(env);
-    gen_spr_book3s_altivec(env);
-    /* Time base */
-    gen_tbl(env);
-    gen_spr_book3s_ids(env);
-    gen_spr_book3s_purr(env);
-    gen_spr_book3s_common(env);
-    gen_spr_book3s_pmu_sup(env);
-    gen_spr_book3s_pmu_user(env);
-    gen_spr_power5p_common(env);
-    gen_spr_power5p_lpar(env);
-    gen_spr_power6_common(env);
-    gen_spr_power6_dbg(env);
-    gen_spr_amr(env);
-#if !defined(CONFIG_USER_ONLY)
-    env->slb_nr = 32;
-#endif
-    init_excp_POWER7(env);
-    env->dcache_line_size = 128;
-    env->icache_line_size = 128;
-
-    /* Allocate hardware IRQ controller */
-    ppcPOWER7_irq_init(env);
+    init_proc_book3s_64(env, BOOK3S_CPU_POWER7);
 }
 
 POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
@@ -7932,10 +7957,7 @@ POWERPC_FAMILY(POWER7P)(ObjectClass *oc, void *data)
 
 static void init_proc_POWER8(CPUPPCState *env)
 {
-    /* inherit P7 */
-    init_proc_POWER7(env);
-
-    gen_spr_power8_tce_address_control(env);
+    init_proc_book3s_64(env, BOOK3S_CPU_POWER8);
 }
 
 POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
-- 
2.0.0