From: Balbir Singh <bsingharora@gmail.com>
Date: Wed, 13 Jul 2016 09:35:20 +0000 (+0530)
Subject: powerpc/mm: Fix .long's in tlb-radix.c to more meaningful
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8cd6d3c23e226ec6cb8825e1aa6a391ebda71c72;p=linux-beck.git

powerpc/mm: Fix .long's in tlb-radix.c to more meaningful

The .longs with the shifts are harder to read, use more meaningful names
for the opcodes. PPC_TLBIE_5 is introduced for the 5 opcode variation of
the instruction due to an existing op-code for the 2 opcode variant.

Signed-off-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 81657a1e03fe..1c18a43e0d65 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -190,6 +190,7 @@
 #define PPC_INST_STSWX			0x7c00052a
 #define PPC_INST_STXVD2X		0x7c000798
 #define PPC_INST_TLBIE			0x7c000264
+#define PPC_INST_TLBIEL			0x7c000224
 #define PPC_INST_TLBILX			0x7c000024
 #define PPC_INST_WAIT			0x7c00007c
 #define PPC_INST_TLBIVAX		0x7c000624
@@ -281,6 +282,9 @@
 #define ___PPC_RB(b)	(((b) & 0x1f) << 11)
 #define ___PPC_RS(s)	(((s) & 0x1f) << 21)
 #define ___PPC_RT(t)	___PPC_RS(t)
+#define ___PPC_R(r)	(((r) & 0x1) << 16)
+#define ___PPC_PRS(prs)	(((prs) & 0x1) << 17)
+#define ___PPC_RIC(ric)	(((ric) & 0x3) << 18)
 #define __PPC_RA(a)	___PPC_RA(__REG_##a)
 #define __PPC_RA0(a)	___PPC_RA(__REGA0_##a)
 #define __PPC_RB(b)	___PPC_RB(__REG_##b)
@@ -347,6 +351,16 @@
 					__PPC_WC(w))
 #define PPC_TLBIE(lp,a) 	stringify_in_c(.long PPC_INST_TLBIE | \
 					       ___PPC_RB(a) | ___PPC_RS(lp))
+#define	PPC_TLBIE_5(rb,rs,ric,prs,r) \
+				stringify_in_c(.long PPC_INST_TLBIE | \
+					___PPC_RB(rb) | ___PPC_RS(rs) | \
+					___PPC_RIC(ric) | ___PPC_PRS(prs) | \
+					___PPC_R(r))
+#define	PPC_TLBIEL(rb,rs,ric,prs,r) \
+				stringify_in_c(.long PPC_INST_TLBIEL | \
+					___PPC_RB(rb) | ___PPC_RS(rs) | \
+					___PPC_RIC(ric) | ___PPC_PRS(prs) | \
+					___PPC_R(r))
 #define PPC_TLBSRX_DOT(a,b)	stringify_in_c(.long PPC_INST_TLBSRX_DOT | \
 					__PPC_RA0(a) | __PPC_RB(b))
 #define PPC_TLBIVAX(a,b)	stringify_in_c(.long PPC_INST_TLBIVAX | \
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index ab2f60e812e2..35690c41f85d 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -12,6 +12,7 @@
 #include <linux/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/memblock.h>
+#include <asm/ppc-opcode.h>
 
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
@@ -34,8 +35,7 @@ static inline void __tlbiel_pid(unsigned long pid, int set,
 	r = 1;   /* raidx format */
 
 	asm volatile("ptesync": : :"memory");
-	asm volatile(".long 0x7c000224 | (%0 << 11) | (%1 << 16) |"
-		     "(%2 << 17) | (%3 << 18) | (%4 << 21)"
+	asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
 		     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
 	asm volatile("ptesync": : :"memory");
 }
@@ -63,8 +63,7 @@ static inline void _tlbie_pid(unsigned long pid, unsigned long ric)
 	r = 1;   /* raidx format */
 
 	asm volatile("ptesync": : :"memory");
-	asm volatile(".long 0x7c000264 | (%0 << 11) | (%1 << 16) |"
-		     "(%2 << 17) | (%3 << 18) | (%4 << 21)"
+	asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
 		     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
 	asm volatile("eieio; tlbsync; ptesync": : :"memory");
 }
@@ -81,8 +80,7 @@ static inline void _tlbiel_va(unsigned long va, unsigned long pid,
 	r = 1;   /* raidx format */
 
 	asm volatile("ptesync": : :"memory");
-	asm volatile(".long 0x7c000224 | (%0 << 11) | (%1 << 16) |"
-		     "(%2 << 17) | (%3 << 18) | (%4 << 21)"
+	asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
 		     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
 	asm volatile("ptesync": : :"memory");
 }
@@ -99,8 +97,7 @@ static inline void _tlbie_va(unsigned long va, unsigned long pid,
 	r = 1;   /* raidx format */
 
 	asm volatile("ptesync": : :"memory");
-	asm volatile(".long 0x7c000264 | (%0 << 11) | (%1 << 16) |"
-		     "(%2 << 17) | (%3 << 18) | (%4 << 21)"
+	asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
 		     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
 	asm volatile("eieio; tlbsync; ptesync": : :"memory");
 }