From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Tue, 28 Jun 2005 12:40:39 +0000 (+0100)
Subject: [PATCH] ARM SMP: TLB implementations only affect local CPU
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=603fff54420a0ccc4c3b48bfef43896fb4e33161;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] ARM SMP: TLB implementations only affect local CPU

The existing TLB flush implementations only have an effect on
the local CPU.  Prefix them with local_.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

603fff54420a0ccc4c3b48bfef43896fb4e33161
diff --cc include/asm-arm/tlbflush.h
index 8a864b118569,8a864b118569..9387a5e1ffe0
--- a/include/asm-arm/tlbflush.h
+++ b/include/asm-arm/tlbflush.h
@@@ -235,7 -235,7 +235,7 @@@ extern struct cpu_tlb_fns cpu_tlb
  
  #define tlb_flag(f)	((always_tlb_flags & (f)) || (__tlb_flag & possible_tlb_flags & (f)))
  
--static inline void flush_tlb_all(void)
++static inline void local_flush_tlb_all(void)
  {
  	const int zero = 0;
  	const unsigned int __tlb_flag = __cpu_tlb_flags;
@@@ -253,7 -253,7 +253,7 @@@
  		asm("mcr%? p15, 0, %0, c8, c5, 0" : : "r" (zero));
  }
  
--static inline void flush_tlb_mm(struct mm_struct *mm)
++static inline void local_flush_tlb_mm(struct mm_struct *mm)
  {
  	const int zero = 0;
  	const int asid = ASID(mm);
@@@ -282,7 -282,7 +282,7 @@@
  }
  
  static inline void
--flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
++local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
  {
  	const int zero = 0;
  	const unsigned int __tlb_flag = __cpu_tlb_flags;
@@@ -313,7 -313,7 +313,7 @@@
  		asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (uaddr));
  }
  
--static inline void flush_tlb_kernel_page(unsigned long kaddr)
++static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
  {
  	const int zero = 0;
  	const unsigned int __tlb_flag = __cpu_tlb_flags;
@@@ -384,8 -384,8 +384,24 @@@ static inline void clean_pmd_entry(pmd_
  /*
   * Convert calls to our calling convention.
   */
--#define flush_tlb_range(vma,start,end)	__cpu_flush_user_tlb_range(start,end,vma)
--#define flush_tlb_kernel_range(s,e)	__cpu_flush_kern_tlb_range(s,e)
++#define local_flush_tlb_range(vma,start,end)	__cpu_flush_user_tlb_range(start,end,vma)
++#define local_flush_tlb_kernel_range(s,e)	__cpu_flush_kern_tlb_range(s,e)
++
++#ifndef CONFIG_SMP
++#define flush_tlb_all		local_flush_tlb_all
++#define flush_tlb_mm		local_flush_tlb_mm
++#define flush_tlb_page		local_flush_tlb_page
++#define flush_tlb_kernel_page	local_flush_tlb_kernel_page
++#define flush_tlb_range		local_flush_tlb_range
++#define flush_tlb_kernel_range	local_flush_tlb_kernel_range
++#else
++extern void flush_tlb_all(void);
++extern void flush_tlb_mm(struct mm_struct *mm);
++extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr);
++extern void flush_tlb_kernel_page(unsigned long kaddr);
++extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
++extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
++#endif
  
  /*
   * if PG_dcache_dirty is set for the page, we need to ensure that any