void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr)
{
int local = mm_is_thread_local(mm);
unsigned long ap = mmu_get_ap(mmu_virtual_psize);
unsigned long pid, end;
pid = mm ? mm->context.id : 0;
if (unlikely(pid == MMU_NO_CONTEXT))
goto no_context;
/* 4k page size, just blow the world */
if (PAGE_SIZE == 0x1000) {
radix__flush_all_mm(mm);
return;
}
/* Otherwise first do the PWC */
if (local)
_tlbiel_pid(pid, RIC_FLUSH_PWC);
else
_tlbie_pid(pid, RIC_FLUSH_PWC);
/* Then iterate the pages */
end = addr + HPAGE_PMD_SIZE;
for (; addr < end; addr += PAGE_SIZE) {
if (local)
_tlbiel_va(addr, pid, ap, RIC_FLUSH_TLB);
else
_tlbie_va(addr, pid, ap, RIC_FLUSH_TLB);
}
no_context:
preempt_enable();
}
void radix__flush_tlb_range_psize(struct mm_struct *mm, unsigned long start,
unsigned long end, int psize)
{
unsigned long pid;
unsigned long addr;
int local = mm_is_thread_local(mm);
unsigned long ap = mmu_get_ap(psize);
unsigned long page_size = 1UL << mmu_psize_defs[psize].shift;
preempt_disable();
pid = mm ? mm->context.id : 0;
if (unlikely(pid == MMU_NO_CONTEXT))
goto err_out;
if (end == TLB_FLUSH_ALL ||
(end - start) > tlb_single_page_flush_ceiling * page_size) {
if (local)
_tlbiel_pid(pid, RIC_FLUSH_TLB);
else
_tlbie_pid(pid, RIC_FLUSH_TLB);
goto err_out;
}
for (addr = start; addr < end; addr += page_size) {
if (local)
_tlbiel_va(addr, pid, ap, RIC_FLUSH_TLB);
else
_tlbie_va(addr, pid, ap, RIC_FLUSH_TLB);
}
err_out:
preempt_enable();
}
void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize)
{
unsigned long pid;
preempt_disable();
pid = mm->context.id;
if (pid != MMU_NO_CONTEXT)
_tlbiel_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
preempt_enable();
}
void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize)
{
unsigned long pid;
pid = mm->context.id;
if (unlikely(pid == MMU_NO_CONTEXT))
return;
preempt_disable();
if (!mm_is_thread_local(mm))
_tlbie_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
else
_tlbiel_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
preempt_enable();
}
void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize)
{
unsigned long pid;
unsigned long ap = mmu_get_ap(psize);
preempt_disable();
pid = mm ? mm->context.id : 0;
if (unlikely(pid == MMU_NO_CONTEXT))
goto bail;
if (!mm_is_thread_local(mm))
_tlbie_va(vmaddr, pid, ap, RIC_FLUSH_TLB);
else
_tlbiel_va(vmaddr, pid, ap, RIC_FLUSH_TLB);
bail:
preempt_enable();
}
void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize)
{
unsigned long pid;
unsigned long ap = mmu_get_ap(psize);
preempt_disable();
pid = mm ? mm->context.id : 0;
if (unlikely(pid == MMU_NO_CONTEXT))
goto bail;
if (!mm_is_thread_local(mm)) {
int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE);
if (lock_tlbie)
raw_spin_lock(&native_tlbie_lock);
_tlbie_va(vmaddr, pid, ap, RIC_FLUSH_TLB);
if (lock_tlbie)
raw_spin_unlock(&native_tlbie_lock);
} else
_tlbiel_va(vmaddr, pid, ap, RIC_FLUSH_TLB);
bail:
preempt_enable();
}
void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize)
{
unsigned long pid;
pid = mm->context.id;
if (unlikely(pid == MMU_NO_CONTEXT))
return;
preempt_disable();
smp_mb(); /* see radix__flush_tlb_mm */
if (!mm_is_thread_local(mm)) {
if (unlikely(mm_is_singlethreaded(mm))) {
exit_flush_lazy_tlbs(mm);
goto local;
}
_tlbie_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
} else {
local:
_tlbiel_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
}
preempt_enable();
}