1 files changed, 8 insertions, 39 deletions

diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 8c840f0904f3..163ccbbe8c47 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -2,11 +2,11 @@
 #ifndef _S390_TLBFLUSH_H
 #define _S390_TLBFLUSH_H
 
+#include <linux/cpufeature.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <asm/processor.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
+#include <asm/machine.h>
 
 /*
  * Flush all TLB entries on the local CPU.
@@ -24,25 +24,20 @@ static inline void __tlb_flush_idte(unsigned long asce)
 	unsigned long opt;
 
 	opt = IDTE_PTOA;
-	if (MACHINE_HAS_TLB_GUEST)
+	if (machine_has_tlb_guest())
 		opt |= IDTE_GUEST_ASCE;
 	/* Global TLB flush for the mm */
-	asm volatile(
-		"	.insn	rrf,0xb98e0000,0,%0,%1,0"
-		: : "a" (opt), "a" (asce) : "cc");
+	asm volatile("idte 0,%1,%0" : : "a" (opt), "a" (asce) : "cc");
 }
 
-#ifdef CONFIG_SMP
-void smp_ptlb_all(void);
-
 /*
  * Flush all TLB entries on all CPUs.
  */
 static inline void __tlb_flush_global(void)
 {
-	unsigned int dummy = 0;
+	unsigned long dummy = 0;
 
-	csp(&dummy, 0, 0);
+	cspg(&dummy, 0, 0);
 }
 
 /*
@@ -53,18 +48,13 @@ static inline void __tlb_flush_mm(struct mm_struct *mm)
 {
 	unsigned long gmap_asce;
 
-	/*
-	 * If the machine has IDTE we prefer to do a per mm flush
-	 * on all cpus instead of doing a local flush if the mm
-	 * only ran on the local cpu.
-	 */
 	preempt_disable();
 	atomic_inc(&mm->context.flush_count);
 	/* Reset TLB flush mask */
 	cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
 	barrier();
 	gmap_asce = READ_ONCE(mm->context.gmap_asce);
-	if (MACHINE_HAS_IDTE && gmap_asce != -1UL) {
+	if (gmap_asce != -1UL) {
 		if (gmap_asce)
 			__tlb_flush_idte(gmap_asce);
 		__tlb_flush_idte(mm->context.asce);
@@ -78,27 +68,8 @@ static inline void __tlb_flush_mm(struct mm_struct *mm)
 
 static inline void __tlb_flush_kernel(void)
 {
-	if (MACHINE_HAS_IDTE)
-		__tlb_flush_idte(init_mm.context.asce);
-	else
-		__tlb_flush_global();
-}
-#else
-#define __tlb_flush_global()	__tlb_flush_local()
-
-/*
- * Flush TLB entries for a specific ASCE on all CPUs.
- */
-static inline void __tlb_flush_mm(struct mm_struct *mm)
-{
-	__tlb_flush_local();
-}
-
-static inline void __tlb_flush_kernel(void)
-{
-	__tlb_flush_local();
+	__tlb_flush_idte(init_mm.context.asce);
 }
-#endif
 
 static inline void __tlb_flush_mm_lazy(struct mm_struct * mm)
 {
@@ -112,7 +83,6 @@ static inline void __tlb_flush_mm_lazy(struct mm_struct * mm)
 
 /*
  * TLB flushing:
- *  flush_tlb() - flushes the current mm struct TLBs
  *  flush_tlb_all() - flushes all processes TLBs
  *  flush_tlb_mm(mm) - flushes the specified mm context TLB's
  *  flush_tlb_page(vma, vmaddr) - flushes one page
@@ -128,7 +98,6 @@ static inline void __tlb_flush_mm_lazy(struct mm_struct * mm)
  * only one user. At the end of the update the flush_tlb_mm and
  * flush_tlb_range functions need to do the flush.
  */
-#define flush_tlb()				do { } while (0)
 #define flush_tlb_all()				do { } while (0)
 #define flush_tlb_page(vma, addr)		do { } while (0)