From 506cb8be7e83d29b316e1708bcf05359be16cfb7 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@c-s.fr>
Date: Thu, 13 Jul 2017 15:10:04 +0200
Subject: [PATCH] powerpc, 8xx: move cache helper into C

Avoid unnecessary assembly functions when they can easily be written
in C.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/cpu/mpc8xx/start.S  | 32 --------------------------------
 arch/powerpc/include/asm/cache.h | 32 ++++++++++++++++++++++++++++++++
 arch/powerpc/include/asm/ppc.h   |  6 ------
 3 files changed, 32 insertions(+), 38 deletions(-)

diff --git a/arch/powerpc/cpu/mpc8xx/start.S b/arch/powerpc/cpu/mpc8xx/start.S
index fbdc82a079..4c25d3765b 100644
--- a/arch/powerpc/cpu/mpc8xx/start.S
+++ b/arch/powerpc/cpu/mpc8xx/start.S
@@ -310,38 +310,6 @@ get_pvr:
 	mfspr	r3, PVR
 	blr
 
-
-	.globl wr_ic_cst
-wr_ic_cst:
-	mtspr	IC_CST, r3
-	blr
-
-	.globl rd_ic_cst
-rd_ic_cst:
-	mfspr	r3, IC_CST
-	blr
-
-	.globl wr_ic_adr
-wr_ic_adr:
-	mtspr	IC_ADR, r3
-	blr
-
-
-	.globl wr_dc_cst
-wr_dc_cst:
-	mtspr	DC_CST, r3
-	blr
-
-	.globl rd_dc_cst
-rd_dc_cst:
-	mfspr	r3, DC_CST
-	blr
-
-	.globl wr_dc_adr
-wr_dc_adr:
-	mtspr	DC_ADR, r3
-	blr
-
 /*------------------------------------------------------------------------------*/
 
 /*
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index d3a83910b6..0801d2c367 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -107,6 +107,38 @@ void disable_cpc_sram(void);
 
 #define DC_DFWT		0x40000000	/* Data cache is forced write through */
 #define DC_LES		0x20000000	/* Caches are little endian mode */
+
+#if !defined(__ASSEMBLY__)
+static inline uint rd_ic_cst(void)
+{
+	return mfspr(IC_CST);
+}
+
+static inline void wr_ic_cst(uint val)
+{
+	mtspr(IC_CST, val);
+}
+
+static inline void wr_ic_adr(uint val)
+{
+	mtspr(IC_ADR, val);
+}
+
+static inline uint rd_dc_cst(void)
+{
+	return mfspr(DC_CST);
+}
+
+static inline void wr_dc_cst(uint val)
+{
+	mtspr(DC_CST, val);
+}
+
+static inline void wr_dc_adr(uint val)
+{
+	mtspr(DC_ADR, val);
+}
+#endif
 #endif /* CONFIG_8xx */
 
 #endif
diff --git a/arch/powerpc/include/asm/ppc.h b/arch/powerpc/include/asm/ppc.h
index e11f39801e..61838cb2d9 100644
--- a/arch/powerpc/include/asm/ppc.h
+++ b/arch/powerpc/include/asm/ppc.h
@@ -50,12 +50,6 @@ static inline uint get_immr(uint mask)
 #endif
 uint get_pvr(void);
 uint get_svr(void);
-uint rd_ic_cst(void);
-void wr_ic_cst(uint);
-void wr_ic_adr(uint);
-uint rd_dc_cst(void);
-void wr_dc_cst(uint);
-void wr_dc_adr(uint);
 
 #if defined(CONFIG_MPC85xx)	|| \
 	defined(CONFIG_MPC86xx)	|| \
-- 
2.39.5