target/ppc: cpu_init: Group registration of generic SPRs

The top level init_proc calls register_generic_sprs but also registers
some other SPRs outside of that function. Let's group everything into
a single place.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220216162426.1885923-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

target/ppc/cpu_init.c

@@ -150,8 +150,11 @@ static void _spr_register(CPUPPCState *env, int num, const char *name,
                      oea_read, oea_write, 0, ival)
 
 /* Generic PowerPC SPRs */
-static void register_generic_sprs(CPUPPCState *env)
+static void register_generic_sprs(PowerPCCPU *cpu)
 {
+    PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
+    CPUPPCState *env = &cpu->env;
+
     /* Integer processing */
     spr_register(env, SPR_XER, "XER",
                  &spr_read_xer, &spr_write_xer,
@@ -192,6 +195,32 @@ static void register_generic_sprs(CPUPPCState *env)
                  SPR_NOACCESS, SPR_NOACCESS,
                  &spr_read_generic, &spr_write_generic,
                  0x00000000);
+
+    spr_register(env, SPR_PVR, "PVR",
+                 /* Linux permits userspace to read PVR */
+#if defined(CONFIG_LINUX_USER)
+                 &spr_read_generic,
+#else
+                 SPR_NOACCESS,
+#endif
+                 SPR_NOACCESS,
+                 &spr_read_generic, SPR_NOACCESS,
+                 pcc->pvr);
+
+    /* Register SVR if it's defined to anything else than POWERPC_SVR_NONE */
+    if (pcc->svr != POWERPC_SVR_NONE) {
+        if (pcc->svr & POWERPC_SVR_E500) {
+            spr_register(env, SPR_E500_SVR, "SVR",
+                         SPR_NOACCESS, SPR_NOACCESS,
+                         &spr_read_generic, SPR_NOACCESS,
+                         pcc->svr & ~POWERPC_SVR_E500);
+        } else {
+            spr_register(env, SPR_SVR, "SVR",
+                         SPR_NOACCESS, SPR_NOACCESS,
+                         &spr_read_generic, SPR_NOACCESS,
+                         pcc->svr);
+        }
+    }
 }
 
 /* SPR common to all non-embedded PowerPC, including 601 */
@@ -7237,31 +7266,8 @@ static void init_ppc_proc(PowerPCCPU *cpu)
     env->tlb_type = TLB_NONE;
 #endif
     /* Register SPR common to all PowerPC implementations */
-    register_generic_sprs(env);
-    spr_register(env, SPR_PVR, "PVR",
-                 /* Linux permits userspace to read PVR */
-#if defined(CONFIG_LINUX_USER)
-                 &spr_read_generic,
-#else
-                 SPR_NOACCESS,
-#endif
-                 SPR_NOACCESS,
-                 &spr_read_generic, SPR_NOACCESS,
-                 pcc->pvr);
-    /* Register SVR if it's defined to anything else than POWERPC_SVR_NONE */
-    if (pcc->svr != POWERPC_SVR_NONE) {
-        if (pcc->svr & POWERPC_SVR_E500) {
-            spr_register(env, SPR_E500_SVR, "SVR",
-                         SPR_NOACCESS, SPR_NOACCESS,
-                         &spr_read_generic, SPR_NOACCESS,
-                         pcc->svr & ~POWERPC_SVR_E500);
-        } else {
-            spr_register(env, SPR_SVR, "SVR",
-                         SPR_NOACCESS, SPR_NOACCESS,
-                         &spr_read_generic, SPR_NOACCESS,
-                         pcc->svr);
-        }
-    }
+    register_generic_sprs(cpu);
+
     /* PowerPC implementation specific initialisations (SPRs, timers, ...) */
     (*pcc->init_proc)(env);