From: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Date: Wed, 17 Apr 2019 13:03:49 +0000 (+0530)
Subject: powerpc/mm: Move slb_addr_linit to early_init_mmu
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=67fda38f0d688580a916a8f829afd8edaffadfcf;p=openwrt%2Fstaging%2Fblogic.git

powerpc/mm: Move slb_addr_linit to early_init_mmu

Avoid #ifdef in generic code. Also enables us to do this specific to
MMU translation mode on book3s64

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

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 2e5dfb6e0823..a07de8608484 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -947,17 +947,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data = (unsigned long) _edata;
 	init_mm.brk = klimit;
 
-#ifdef CONFIG_PPC_MM_SLICES
-#ifdef CONFIG_PPC64
-	if (!radix_enabled())
-		init_mm.context.slb_addr_limit = DEFAULT_MAP_WINDOW_USER64;
-#elif defined(CONFIG_PPC_8xx)
-	init_mm.context.slb_addr_limit = DEFAULT_MAP_WINDOW;
-#else
-#error	"context.addr_limit not initialized."
-#endif
-#endif
-
 #ifdef CONFIG_SPAPR_TCE_IOMMU
 	mm_iommu_init(&init_mm);
 #endif
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index fee0270618ac..fe2fc43a8664 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1036,6 +1036,8 @@ void __init hash__early_init_mmu(void)
 	 */
 	htab_initialize();
 
+	init_mm.context.slb_addr_limit = DEFAULT_MAP_WINDOW_USER64;
+
 	pr_info("Initializing hash mmu with SLB\n");
 	/* Initialize SLB management */
 	slb_initialize();
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index ac23dc1c6535..088e0a6b5ade 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -800,5 +800,11 @@ void __init early_init_mmu(void)
 #ifdef CONFIG_PPC_47x
 	early_init_mmu_47x();
 #endif
+
+#ifdef CONFIG_PPC_MM_SLICES
+#if defined(CONFIG_PPC_8xx)
+	init_mm.context.slb_addr_limit = DEFAULT_MAP_WINDOW;
+#endif
+#endif
 }
 #endif /* CONFIG_PPC64 */