[PULL 25/39] target/ppc: cpu_init: Deduplicate 745/755 SPR registration

[Cédric Le Goater]

From: Fabiano Rosas <farosas@linux.ibm.com>

The 745 and 755 can share the HID registration, so move it all into
register_755_sprs, which applies for both CPUs.

Also rename that function to register_745_sprs, since the 745 is the
earliest of the two. This will help with separating 755-specific
registers in a subsequent patch.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220216162426.1885923-14-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 target/ppc/cpu_init.c | 50 ++++++++++++++++---------------------------
 1 file changed, 19 insertions(+), 31 deletions(-)

diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 970dc4ed0d73..43289a429fa8 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -466,7 +466,7 @@ static void register_6xx_7xx_soft_tlb(CPUPPCState *env, int 
nb_tlbs, int nb_ways
 #endif
 }
 
-static void register_755_sprs(CPUPPCState *env)
+static void register_745_sprs(CPUPPCState *env)
 {
     /* SGPRs */
     spr_register(env, SPR_SPRG4, "SPRG4",
@@ -485,6 +485,22 @@ static void register_755_sprs(CPUPPCState *env)
                  SPR_NOACCESS, SPR_NOACCESS,
                  &spr_read_generic, &spr_write_generic,
                  0x00000000);
+
+    /* Hardware implementation registers */
+    spr_register(env, SPR_HID0, "HID0",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+
+    spr_register(env, SPR_HID1, "HID1",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+
+    spr_register(env, SPR_HID2, "HID2",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
 }
 
 /* SPR common to all 7xx PowerPC implementations */
@@ -4515,24 +4531,10 @@ static void init_proc_745(CPUPPCState *env)
     register_ne_601_sprs(env);
     register_sdr1_sprs(env);
     register_7xx_sprs(env);
-    register_755_sprs(env);
+    register_745_sprs(env);
     /* Thermal management */
     register_thrm_sprs(env);
-    /* Hardware implementation registers */
-    spr_register(env, SPR_HID0, "HID0",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_generic, &spr_write_generic,
-                 0x00000000);
-
-    spr_register(env, SPR_HID1, "HID1",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_generic, &spr_write_generic,
-                 0x00000000);
 
-    spr_register(env, SPR_HID2, "HID2",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_generic, &spr_write_generic,
-                 0x00000000);
     /* Memory management */
     register_low_BATs(env);
     register_high_BATs(env);
@@ -4588,7 +4590,7 @@ static void init_proc_755(CPUPPCState *env)
     register_ne_601_sprs(env);
     register_sdr1_sprs(env);
     register_7xx_sprs(env);
-    register_755_sprs(env);
+    register_745_sprs(env);
     /* L2 cache control */
     spr_register(env, SPR_L2CR, "L2CR",
                  SPR_NOACCESS, SPR_NOACCESS,
@@ -4601,21 +4603,7 @@ static void init_proc_755(CPUPPCState *env)
                  0x00000000);
     /* Thermal management */
     register_thrm_sprs(env);
-    /* Hardware implementation registers */
-    spr_register(env, SPR_HID0, "HID0",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_generic, &spr_write_generic,
-                 0x00000000);
 
-    spr_register(env, SPR_HID1, "HID1",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_generic, &spr_write_generic,
-                 0x00000000);
-
-    spr_register(env, SPR_HID2, "HID2",
-                 SPR_NOACCESS, SPR_NOACCESS,
-                 &spr_read_generic, &spr_write_generic,
-                 0x00000000);
     /* Memory management */
     register_low_BATs(env);
     register_high_BATs(env);
-- 
2.34.1