Several registers have names that don't match the ISA (or convention
with other QEMU PPC registers), making them unintuitive to use with
GDB.

Fortunately most of these registers are obscure and/or have not been
correctly implemented in the gdb server (e.g., DEC, TB, CFAR), so risk
of breaking users should be low.

QEMU should follow the ISA for register name convention (where there is
no established GDB name).

Acked-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 target/ppc/cpu_init.c    | 20 ++++++++++----------
 target/ppc/helper_regs.c |  2 +-
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 9931372a08..9bccddb350 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -5062,7 +5062,7 @@ static void register_970_hid_sprs(CPUPPCState *env)
 
 static void register_970_hior_sprs(CPUPPCState *env)
 {
-    spr_register(env, SPR_HIOR, "SPR_HIOR",
+    spr_register(env, SPR_HIOR, "HIOR",
                  SPR_NOACCESS, SPR_NOACCESS,
                  &spr_read_hior, &spr_write_hior,
                  0x00000000);
@@ -5070,11 +5070,11 @@ static void register_970_hior_sprs(CPUPPCState *env)
 
 static void register_book3s_ctrl_sprs(CPUPPCState *env)
 {
-    spr_register(env, SPR_CTRL, "SPR_CTRL",
+    spr_register(env, SPR_CTRL, "CTRL",
                  SPR_NOACCESS, SPR_NOACCESS,
                  SPR_NOACCESS, &spr_write_CTRL,
                  0x00000000);
-    spr_register(env, SPR_UCTRL, "SPR_UCTRL",
+    spr_register(env, SPR_UCTRL, "UCTRL",
                  &spr_read_ureg, SPR_NOACCESS,
                  &spr_read_ureg, SPR_NOACCESS,
                  0x00000000);
@@ -5465,7 +5465,7 @@ static void register_book3s_purr_sprs(CPUPPCState *env)
 static void register_power6_dbg_sprs(CPUPPCState *env)
 {
 #if !defined(CONFIG_USER_ONLY)
-    spr_register(env, SPR_CFAR, "SPR_CFAR",
+    spr_register(env, SPR_CFAR, "CFAR",
                  SPR_NOACCESS, SPR_NOACCESS,
                  &spr_read_cfar, &spr_write_cfar,
                  0x00000000);
@@ -5483,7 +5483,7 @@ static void register_power5p_common_sprs(CPUPPCState *env)
 static void register_power6_common_sprs(CPUPPCState *env)
 {
 #if !defined(CONFIG_USER_ONLY)
-    spr_register_kvm(env, SPR_DSCR, "SPR_DSCR",
+    spr_register_kvm(env, SPR_DSCR, "DSCR",
                      SPR_NOACCESS, SPR_NOACCESS,
                      &spr_read_generic, &spr_write_generic,
                      KVM_REG_PPC_DSCR, 0x00000000);
@@ -5695,7 +5695,7 @@ static void register_power8_book4_sprs(CPUPPCState *env)
                      &spr_read_generic, &spr_write_generic,
                      KVM_REG_PPC_ACOP, 0);
     /* PID is only in BookE in ISA v2.07 */
-    spr_register_kvm(env, SPR_BOOKS_PID, "PID",
+    spr_register_kvm(env, SPR_BOOKS_PID, "PIDR",
                      SPR_NOACCESS, SPR_NOACCESS,
                      &spr_read_generic, &spr_write_pidr,
                      KVM_REG_PPC_PID, 0);
@@ -5716,7 +5716,7 @@ static void register_power7_book4_sprs(CPUPPCState *env)
                      &spr_read_generic, &spr_write_generic,
                      KVM_REG_PPC_ACOP, 0);
     /* PID is only in BookE in ISA v2.06 */
-    spr_register_kvm(env, SPR_BOOKS_PID, "PID",
+    spr_register_kvm(env, SPR_BOOKS_PID, "PIDR",
                      SPR_NOACCESS, SPR_NOACCESS,
                      &spr_read_generic, &spr_write_generic32,
                      KVM_REG_PPC_PID, 0);
@@ -5750,7 +5750,7 @@ static void register_power9_mmu_sprs(CPUPPCState *env)
                     &spr_read_generic, &spr_write_generic,
                     0x0000000000000000);
     /* PID is part of the BookS ISA from v3.0 */
-    spr_register_kvm(env, SPR_BOOKS_PID, "PID",
+    spr_register_kvm(env, SPR_BOOKS_PID, "PIDR",
                      SPR_NOACCESS, SPR_NOACCESS,
                      &spr_read_generic, &spr_write_pidr,
                      KVM_REG_PPC_PID, 0);
@@ -5791,7 +5791,7 @@ static void register_power10_dexcr_sprs(CPUPPCState *env)
             &spr_read_generic, &spr_write_generic32,
             0);
 
-    spr_register(env, SPR_UDEXCR, "DEXCR",
+    spr_register(env, SPR_UDEXCR, "UDEXCR",
             &spr_read_dexcr_ureg, SPR_NOACCESS,
             &spr_read_dexcr_ureg, SPR_NOACCESS,
             0);
@@ -5802,7 +5802,7 @@ static void register_power10_dexcr_sprs(CPUPPCState *env)
             &spr_read_generic, &spr_write_generic32,
             0);
 
-    spr_register(env, SPR_UHDEXCR, "HDEXCR",
+    spr_register(env, SPR_UHDEXCR, "UHDEXCR",
             &spr_read_dexcr_ureg, SPR_NOACCESS,
             &spr_read_dexcr_ureg, SPR_NOACCESS,
             0);
diff --git a/target/ppc/helper_regs.c b/target/ppc/helper_regs.c
index e0b2dcd02e..8324ff22db 100644
--- a/target/ppc/helper_regs.c
+++ b/target/ppc/helper_regs.c
@@ -490,7 +490,7 @@ void register_non_embedded_sprs(CPUPPCState *env)
                      &spr_read_generic, &spr_write_generic,
                      KVM_REG_PPC_DAR, 0x00000000);
     /* Timer */
-    spr_register(env, SPR_DECR, "DECR",
+    spr_register(env, SPR_DECR, "DEC",
                  SPR_NOACCESS, SPR_NOACCESS,
                  &spr_read_decr, &spr_write_decr,
                  0x00000000);
-- 
2.42.0