diff --git a/dlls/ntdll/server.c b/dlls/ntdll/server.c
index dd0d83e0aff..46494e2e8f2 100644
--- a/dlls/ntdll/server.c
+++ b/dlls/ntdll/server.c
@@ -98,8 +98,6 @@ static const enum cpu_type client_cpu = CPU_x86;
 static const enum cpu_type client_cpu = CPU_x86_64;
 #elif defined(__powerpc__)
 static const enum cpu_type client_cpu = CPU_POWERPC;
-#elif defined(__sparc__)
-static const enum cpu_type client_cpu = CPU_SPARC;
 #elif defined(__arm__)
 static const enum cpu_type client_cpu = CPU_ARM;
 #elif defined(__aarch64__)
diff --git a/include/wine/server_protocol.h b/include/wine/server_protocol.h
index 8a8a0edb987..6f3a5d642f2 100644
--- a/include/wine/server_protocol.h
+++ b/include/wine/server_protocol.h
@@ -129,7 +129,7 @@ typedef union
 
 enum cpu_type
 {
-    CPU_x86, CPU_x86_64, CPU_POWERPC, CPU_ARM, CPU_ARM64, CPU_SPARC
+    CPU_x86, CPU_x86_64, CPU_POWERPC, CPU_ARM, CPU_ARM64
 };
 typedef int cpu_type_t;
 
@@ -146,7 +146,6 @@ typedef struct
         struct { unsigned int iar, msr, ctr, lr, dar, dsisr, trap, __pad; } powerpc_regs;
         struct { unsigned int sp, lr, pc, cpsr; } arm_regs;
         struct { unsigned __int64 sp, pc, pstate; } arm64_regs;
-        struct { unsigned int psr, pc, npc, y, wim, tbr; } sparc_regs;
     } ctl;
     union
     {
@@ -156,7 +155,6 @@ typedef struct
         struct { unsigned int gpr[32], cr, xer; } powerpc_regs;
         struct { unsigned int r[13]; } arm_regs;
         struct { unsigned __int64 x[31]; } arm64_regs;
-        struct { unsigned int g[8], o[8], l[8], i[8]; } sparc_regs;
     } integer;
     union
     {
@@ -5717,6 +5715,6 @@ union generic_reply
     struct set_suspend_context_reply set_suspend_context_reply;
 };
 
-#define SERVER_PROTOCOL_VERSION 439
+#define SERVER_PROTOCOL_VERSION 440
 
 #endif /* __WINE_WINE_SERVER_PROTOCOL_H */
diff --git a/server/protocol.def b/server/protocol.def
index 7bb679a836e..234c41e6d01 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -145,7 +145,7 @@ typedef union
 /* supported CPU types */
 enum cpu_type
 {
-    CPU_x86, CPU_x86_64, CPU_POWERPC, CPU_ARM, CPU_ARM64, CPU_SPARC
+    CPU_x86, CPU_x86_64, CPU_POWERPC, CPU_ARM, CPU_ARM64
 };
 typedef int cpu_type_t;
 
@@ -162,7 +162,6 @@ typedef struct
         struct { unsigned int iar, msr, ctr, lr, dar, dsisr, trap, __pad; } powerpc_regs;
         struct { unsigned int sp, lr, pc, cpsr; } arm_regs;
         struct { unsigned __int64 sp, pc, pstate; } arm64_regs;
-        struct { unsigned int psr, pc, npc, y, wim, tbr; } sparc_regs;
     } ctl;  /* selected by SERVER_CTX_CONTROL */
     union
     {
@@ -172,7 +171,6 @@ typedef struct
         struct { unsigned int gpr[32], cr, xer; } powerpc_regs;
         struct { unsigned int r[13]; } arm_regs;
         struct { unsigned __int64 x[31]; } arm64_regs;
-        struct { unsigned int g[8], o[8], l[8], i[8]; } sparc_regs;
     } integer;  /* selected by SERVER_CTX_INTEGER */
     union
     {
diff --git a/server/thread.c b/server/thread.c
index fdbc144b36b..69d547c1c56 100644
--- a/server/thread.c
+++ b/server/thread.c
@@ -59,8 +59,6 @@ static const unsigned int supported_cpus = CPU_FLAG(CPU_x86);
 static const unsigned int supported_cpus = CPU_FLAG(CPU_x86_64) | CPU_FLAG(CPU_x86);
 #elif defined(__powerpc__)
 static const unsigned int supported_cpus = CPU_FLAG(CPU_POWERPC);
-#elif defined(__sparc__)
-static const unsigned int supported_cpus = CPU_FLAG(CPU_SPARC);
 #elif defined(__arm__)
 static const unsigned int supported_cpus = CPU_FLAG(CPU_ARM);
 #elif defined(__aarch64__)
@@ -1026,7 +1024,6 @@ static unsigned int get_context_system_regs( enum cpu_type cpu )
     case CPU_POWERPC: return 0;
     case CPU_ARM:     return 0;
     case CPU_ARM64:   return 0;
-    case CPU_SPARC:   return 0;
     }
     return 0;
 }
@@ -1053,9 +1050,6 @@ void break_thread( struct thread *thread )
     case CPU_POWERPC:
         data.exception.address = thread->context->ctl.powerpc_regs.iar;
         break;
-    case CPU_SPARC:
-        data.exception.address = thread->context->ctl.sparc_regs.pc;
-        break;
     case CPU_ARM:
         data.exception.address = thread->context->ctl.arm_regs.pc;
         break;
diff --git a/server/trace.c b/server/trace.c
index c7a13d85630..a183fdedb59 100644
--- a/server/trace.c
+++ b/server/trace.c
@@ -114,7 +114,6 @@ static void dump_cpu_type( const char *prefix, const cpu_type_t *code )
         CASE(x86);
         CASE(x86_64);
         CASE(POWERPC);
-        CASE(SPARC);
         default: fprintf( stderr, "%s%u", prefix, *code ); break;
 #undef CASE
     }
@@ -599,19 +598,6 @@ static void dump_varargs_context( const char *prefix, data_size_t size )
             dump_uint64( ",x30=", &ctx.integer.arm64_regs.x[30] );
         }
         break;
-    case CPU_SPARC:
-        if (ctx.flags & SERVER_CTX_CONTROL)
-            fprintf( stderr, ",psr=%08x,pc=%08x,npc=%08x,y=%08x,wim=%08x,tbr=%08x",
-                     ctx.ctl.sparc_regs.psr, ctx.ctl.sparc_regs.pc, ctx.ctl.sparc_regs.npc,
-                     ctx.ctl.sparc_regs.y, ctx.ctl.sparc_regs.wim, ctx.ctl.sparc_regs.tbr );
-        if (ctx.flags & SERVER_CTX_INTEGER)
-        {
-            for (i = 0; i < 8; i++) fprintf( stderr, ",g%u=%08x", i, ctx.integer.sparc_regs.g[i] );
-            for (i = 0; i < 8; i++) fprintf( stderr, ",o%u=%08x", i, ctx.integer.sparc_regs.o[i] );
-            for (i = 0; i < 8; i++) fprintf( stderr, ",l%u=%08x", i, ctx.integer.sparc_regs.l[i] );
-            for (i = 0; i < 8; i++) fprintf( stderr, ",i%u=%08x", i, ctx.integer.sparc_regs.i[i] );
-        }
-        break;
     }
     fputc( '}', stderr );
     remove_data( size );