[PATCH v4 13/17] powerpc/64e: remove mmu_linear_psize

[Nicholas Piggin]

mmu_linear_psize is only set at boot once on 64e, is not necessarily
the correct size of the linear map pages, and is never used anywhere.
Remove it.

Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
 arch/powerpc/include/asm/nohash/mmu-book3e.h | 1 -
 arch/powerpc/mm/nohash/tlb.c                 | 9 ---------
 2 files changed, 10 deletions(-)

diff --git a/arch/powerpc/include/asm/nohash/mmu-book3e.h b/arch/powerpc/include/asm/nohash/mmu-book3e.h
index e43a418d3ccd..787e6482e299 100644
--- a/arch/powerpc/include/asm/nohash/mmu-book3e.h
+++ b/arch/powerpc/include/asm/nohash/mmu-book3e.h
@@ -284,7 +284,6 @@ static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
 #error Unsupported page size
 #endif
 
-extern int mmu_linear_psize;
 extern int mmu_vmemmap_psize;
 
 struct tlb_core_data {
diff --git a/arch/powerpc/mm/nohash/tlb.c b/arch/powerpc/mm/nohash/tlb.c
index 647bf454a0fa..311281063d48 100644
--- a/arch/powerpc/mm/nohash/tlb.c
+++ b/arch/powerpc/mm/nohash/tlb.c
@@ -150,7 +150,6 @@ static inline int mmu_get_tsize(int psize)
  */
 #ifdef CONFIG_PPC64
 
-int mmu_linear_psize;		/* Page size used for the linear mapping */
 int mmu_pte_psize;		/* Page size used for PTE pages */
 int mmu_vmemmap_psize;		/* Page size used for the virtual mem map */
 int book3e_htw_mode;		/* HW tablewalk?  Value is PPC_HTW_* */
@@ -657,14 +656,6 @@ static void early_init_this_mmu(void)
 
 static void __init early_init_mmu_global(void)
 {
-	/* XXX This will have to be decided at runtime, but right
-	 * now our boot and TLB miss code hard wires it. Ideally
-	 * we should find out a suitable page size and patch the
-	 * TLB miss code (either that or use the PACA to store
-	 * the value we want)
-	 */
-	mmu_linear_psize = MMU_PAGE_1G;
-
 	/* XXX This should be decided at runtime based on supported
 	 * page sizes in the TLB, but for now let's assume 16M is
 	 * always there and a good fit (which it probably is)
-- 
2.23.0