MIPS: uasm: Add option to export uasm API.

A 'select EXPORT_UASM' in Kconfig will cause the uasm to be exported
for use in modules.  When it is exported, all the uasm data and code
cease to be __init and __initdata.

Also daddiu_bug cannot be __cpuinitdata if uasm is exported.  The
cleanest thing is to just make it normal data.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1500/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -915,6 +915,9 @@ config CPU_LITTLE_ENDIAN
 
 endchoice
 
+config EXPORT_UASM
+	bool
+
 config SYS_SUPPORTS_APM_EMULATION
 	bool
 

arch/mips/include/asm/uasm.h

@@ -10,44 +10,55 @@
 
 #include <linux/types.h>
 
+#ifdef CONFIG_EXPORT_UASM
+#include <linux/module.h>
+#define __uasminit
+#define __uasminitdata
+#define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym)
+#else
+#define __uasminit __cpuinit
+#define __uasminitdata __cpuinitdata
+#define UASM_EXPORT_SYMBOL(sym)
+#endif
+
 #define Ip_u1u2u3(op)							\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
 
 #define Ip_u2u1u3(op)							\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
 
 #define Ip_u3u1u2(op)							\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
 
 #define Ip_u1u2s3(op)							\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
 
 #define Ip_u2s3u1(op)							\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c)
 
 #define Ip_u2u1s3(op)							\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
 
 #define Ip_u2u1msbu3(op)						\
-void __cpuinit								\
+void __uasminit								\
 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c,	\
 	   unsigned int d)
 
 #define Ip_u1u2(op)							\
-void __cpuinit uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
+void __uasminit uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
 
 #define Ip_u1s2(op)							\
-void __cpuinit uasm_i##op(u32 **buf, unsigned int a, signed int b)
+void __uasminit uasm_i##op(u32 **buf, unsigned int a, signed int b)
 
-#define Ip_u1(op) void __cpuinit uasm_i##op(u32 **buf, unsigned int a)
+#define Ip_u1(op) void __uasminit uasm_i##op(u32 **buf, unsigned int a)
 
-#define Ip_0(op) void __cpuinit uasm_i##op(u32 **buf)
+#define Ip_0(op) void __uasminit uasm_i##op(u32 **buf)
 
 Ip_u2u1s3(_addiu);
 Ip_u3u1u2(_addu);
@@ -112,7 +123,7 @@ struct uasm_label {
 	int lab;
 };
 
-void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
+void __uasminit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
 #ifdef CONFIG_64BIT
 int uasm_in_compat_space_p(long addr);
 #endif
@@ -122,7 +133,7 @@ void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
 void UASM_i_LA(u32 **buf, unsigned int rs, long addr);
 
 #define UASM_L_LA(lb)							\
-static inline void __cpuinit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
+static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
 {									\
 	uasm_build_label(lab, addr, label##lb);				\
 }

arch/mips/kernel/cpu-bugs64.c

@@ -239,7 +239,7 @@ static inline void check_daddi(void)
 	panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
 }
 
-int daddiu_bug __cpuinitdata = -1;
+int daddiu_bug  = -1;
 
 static inline void check_daddiu(void)
 {