From 59879d542a8e880391863d82cddf38854e3807f4 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 16 Apr 2018 16:57:14 +0530
Subject: [PATCH] powerpc/mm/book3s64: Move book3s64 code to pgtable-book3s64

References: bsc#1055186
Patch-mainline: v4.18-rc1
Git-commit: 59879d542a8e880391863d82cddf38854e3807f4

Only code movement and avoid #ifdef.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
 arch/powerpc/mm/pgtable-book3s64.c | 54 ++++++++++++++++++++++++++++
 arch/powerpc/mm/pgtable_64.c       | 56 ------------------------------
 2 files changed, 54 insertions(+), 56 deletions(-)

--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -9,9 +9,12 @@
 
 #include <linux/sched.h>
 #include <linux/mm_types.h>
+#include <linux/memblock.h>
 
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
+#include <asm/trace.h>
+#include <asm/powernv.h>
 
 #include "mmu_decl.h"
 #include <trace/events/thp.h>
@@ -146,3 +149,54 @@ int remove_section_mapping(unsigned long
 	return hash__remove_section_mapping(start, end);
 }
 #endif /* CONFIG_MEMORY_HOTPLUG */
+
+void __init mmu_partition_table_init(void)
+{
+	unsigned long patb_size = 1UL << PATB_SIZE_SHIFT;
+	unsigned long ptcr;
+
+	BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 36), "Partition table size too large.");
+	partition_tb = __va(memblock_alloc_base(patb_size, patb_size,
+						MEMBLOCK_ALLOC_ANYWHERE));
+
+	/* Initialize the Partition Table with no entries */
+	memset((void *)partition_tb, 0, patb_size);
+
+	/*
+	 * update partition table control register,
+	 * 64 K size.
+	 */
+	ptcr = __pa(partition_tb) | (PATB_SIZE_SHIFT - 12);
+	mtspr(SPRN_PTCR, ptcr);
+	powernv_set_nmmu_ptcr(ptcr);
+}
+
+void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0,
+				   unsigned long dw1)
+{
+	unsigned long old = be64_to_cpu(partition_tb[lpid].patb0);
+
+	partition_tb[lpid].patb0 = cpu_to_be64(dw0);
+	partition_tb[lpid].patb1 = cpu_to_be64(dw1);
+
+	/*
+	 * Global flush of TLBs and partition table caches for this lpid.
+	 * The type of flush (hash or radix) depends on what the previous
+	 * use of this partition ID was, not the new use.
+	 */
+	asm volatile("ptesync" : : : "memory");
+	if (old & PATB_HR) {
+		asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : :
+			     "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
+		asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
+			     "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
+		trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1);
+	} else {
+		asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : :
+			     "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
+		trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 0);
+	}
+	/* do we need fixup here ?*/
+	asm volatile("eieio; tlbsync; ptesync" : : : "memory");
+}
+EXPORT_SYMBOL_GPL(mmu_partition_table_set_entry);
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -33,7 +33,6 @@
 #include <linux/swap.h>
 #include <linux/stddef.h>
 #include <linux/vmalloc.h>
-#include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/hugetlb.h>
 
@@ -47,13 +46,11 @@
 #include <asm/smp.h>
 #include <asm/machdep.h>
 #include <asm/tlb.h>
-#include <asm/trace.h>
 #include <asm/processor.h>
 #include <asm/cputable.h>
 #include <asm/sections.h>
 #include <asm/firmware.h>
 #include <asm/dma.h>
-#include <asm/powernv.h>
 
 #include "mmu_decl.h"
 
@@ -438,59 +435,6 @@ void pgtable_free_tlb(struct mmu_gather
 }
 #endif
 
-#ifdef CONFIG_PPC_BOOK3S_64
-void __init mmu_partition_table_init(void)
-{
-	unsigned long patb_size = 1UL << PATB_SIZE_SHIFT;
-	unsigned long ptcr;
-
-	BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 36), "Partition table size too large.");
-	partition_tb = __va(memblock_alloc_base(patb_size, patb_size,
-						MEMBLOCK_ALLOC_ANYWHERE));
-
-	/* Initialize the Partition Table with no entries */
-	memset((void *)partition_tb, 0, patb_size);
-
-	/*
-	 * update partition table control register,
-	 * 64 K size.
-	 */
-	ptcr = __pa(partition_tb) | (PATB_SIZE_SHIFT - 12);
-	mtspr(SPRN_PTCR, ptcr);
-	powernv_set_nmmu_ptcr(ptcr);
-}
-
-void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0,
-				   unsigned long dw1)
-{
-	unsigned long old = be64_to_cpu(partition_tb[lpid].patb0);
-
-	partition_tb[lpid].patb0 = cpu_to_be64(dw0);
-	partition_tb[lpid].patb1 = cpu_to_be64(dw1);
-
-	/*
-	 * Global flush of TLBs and partition table caches for this lpid.
-	 * The type of flush (hash or radix) depends on what the previous
-	 * use of this partition ID was, not the new use.
-	 */
-	asm volatile("ptesync" : : : "memory");
-	if (old & PATB_HR) {
-		asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : :
-			     "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
-		asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
-			     "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
-		trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1);
-	} else {
-		asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : :
-			     "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
-		trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 0);
-	}
-	/* do we need fixup here ?*/
-	asm volatile("eieio; tlbsync; ptesync" : : : "memory");
-}
-EXPORT_SYMBOL_GPL(mmu_partition_table_set_entry);
-#endif /* CONFIG_PPC_BOOK3S_64 */
-
 #ifdef CONFIG_STRICT_KERNEL_RWX
 void mark_rodata_ro(void)
 {