Merge tag 'csky-for-linus-5.12-rc1' of git://github.com/c-sky/csky-linux

Pull arch/csky updates from Guo Ren:
 "Features:
   - add new memory layout 2.5G(user):1.5G(kernel)
   - add kmemleak support
   - reconstruct VDSO framework: add VDSO with GENERIC_GETTIMEOFDAY,
     GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
   - add faulthandler_disabled() check
   - support (fix) swapon
   - add (fix) _PAGE_ACCESSED for default pgprot
   - abort uaccess retries upon fatal signal (from arm)

  Fixes and optimizations:
   - fix perf probe failure
   - fix show_regs doesn't contain regs->usp
   - remove custom asm/atomic.h implementation
   - fix barrier design
   - fix futex SMP implementation
   - fix asm/cmpxchg.h with correct ordering barrier
   - cleanup asm/spinlock.h
   - fix PTE global for 2.5:1.5 virtual memory
   - remove prologue of page fault handler in entry.S
   - fix TLB maintenance synchronization problem
   - add show_tlb for CPU_CK860 debug
   - fix FAULT_FLAG_XXX param for handle_mm_fault
   - fix update_mmu_cache called with user io mapping
   - fix do_page_fault parent irq status
   - fix a size determination in gpr_get()
   - pgtable.h: Coding convention
   - kprobe: Fix code in simulate without 'long'
   - fix pfn_valid error with wrong max_mapnr
   - use free_initmem_default() in free_initmem()
   - fix compile error"

* tag 'csky-for-linus-5.12-rc1' of git://github.com/c-sky/csky-linux: (30 commits)
  csky: Fixup compile error
  csky: use free_initmem_default() in free_initmem()
  csky: Fixup pfn_valid error with wrong max_mapnr
  csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
  csky: kprobe: Fixup code in simulate without 'long'
  csky: Fixup swapon
  csky: pgtable.h: Coding convention
  csky: Fixup _PAGE_ACCESSED for default pgprot
  csky: remove unused including <linux/version.h>
  csky: Fix a size determination in gpr_get()
  csky: Reconstruct VDSO framework
  csky: mm: abort uaccess retries upon fatal signal
  csky: Sync riscv mm/fault.c for easy maintenance
  csky: Fixup do_page_fault parent irq status
  csky: Add faulthandler_disabled() check
  csky: Fixup update_mmu_cache called with user io mapping
  csky: Fixup FAULT_FLAG_XXX param for handle_mm_fault
  csky: Add show_tlb for CPU_CK860 debug
  csky: Fix TLB maintenance synchronization problem
  csky: Add kmemleak support
  ...

1 files changed, 35 insertions, 7 deletions

diff --git a/arch/csky/mm/tlb.c b/arch/csky/mm/tlb.c
index ed1512381112..9234c5e5ceaf 100644
--- a/arch/csky/mm/tlb.c
+++ b/arch/csky/mm/tlb.c
@@ -24,7 +24,13 @@ void flush_tlb_all(void)
 void flush_tlb_mm(struct mm_struct *mm)
 {
 #ifdef CONFIG_CPU_HAS_TLBI
-	asm volatile("tlbi.asids %0"::"r"(cpu_asid(mm)));
+	sync_is();
+	asm volatile(
+		"tlbi.asids %0	\n"
+		"sync.i		\n"
+		:
+		: "r" (cpu_asid(mm))
+		: "memory");
 #else
 	tlb_invalid_all();
 #endif
@@ -53,11 +59,17 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 	end   &= TLB_ENTRY_SIZE_MASK;
 
 #ifdef CONFIG_CPU_HAS_TLBI
+	sync_is();
 	while (start < end) {
-		asm volatile("tlbi.vas %0"::"r"(start | newpid));
+		asm volatile(
+			"tlbi.vas %0	\n"
+			:
+			: "r" (start | newpid)
+			: "memory");
+
 		start += 2*PAGE_SIZE;
 	}
-	sync_is();
+	asm volatile("sync.i\n");
 #else
 	{
 	unsigned long flags, oldpid;
@@ -87,11 +99,17 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
 	end   &= TLB_ENTRY_SIZE_MASK;
 
 #ifdef CONFIG_CPU_HAS_TLBI
+	sync_is();
 	while (start < end) {
-		asm volatile("tlbi.vaas %0"::"r"(start));
+		asm volatile(
+			"tlbi.vaas %0	\n"
+			:
+			: "r" (start)
+			: "memory");
+
 		start += 2*PAGE_SIZE;
 	}
-	sync_is();
+	asm volatile("sync.i\n");
 #else
 	{
 	unsigned long flags, oldpid;
@@ -121,8 +139,13 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
 	addr &= TLB_ENTRY_SIZE_MASK;
 
 #ifdef CONFIG_CPU_HAS_TLBI
-	asm volatile("tlbi.vas %0"::"r"(addr | newpid));
 	sync_is();
+	asm volatile(
+		"tlbi.vas %0	\n"
+		"sync.i		\n"
+		:
+		: "r" (addr | newpid)
+		: "memory");
 #else
 	{
 	int oldpid, idx;
@@ -147,8 +170,13 @@ void flush_tlb_one(unsigned long addr)
 	addr &= TLB_ENTRY_SIZE_MASK;
 
 #ifdef CONFIG_CPU_HAS_TLBI
-	asm volatile("tlbi.vaas %0"::"r"(addr));
 	sync_is();
+	asm volatile(
+		"tlbi.vaas %0	\n"
+		"sync.i		\n"
+		:
+		: "r" (addr)
+		: "memory");
 #else
 	{
 	int oldpid, idx;