Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
new file mode 100644
index 0000000000..3037187482
--- /dev/null
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SPARC64_TLB_H
+#define _SPARC64_TLB_H
+
+#include <linux/swap.h>
+#include <linux/pagemap.h>
+#include <asm/tlbflush.h>
+#include <asm/mmu_context.h>
+
+#ifdef CONFIG_SMP
+void smp_flush_tlb_pending(struct mm_struct *,
+				  unsigned long, unsigned long *);
+#endif
+
+#ifdef CONFIG_SMP
+void smp_flush_tlb_mm(struct mm_struct *mm);
+#define do_flush_tlb_mm(mm) smp_flush_tlb_mm(mm)
+#else
+#define do_flush_tlb_mm(mm) __flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT)
+#endif
+
+void __flush_tlb_pending(unsigned long, unsigned long, unsigned long *);
+void flush_tlb_pending(void);
+
+#define tlb_flush(tlb)	flush_tlb_pending()
+
+/*
+ * SPARC64's hardware TLB fill does not use the Linux page-tables
+ * and therefore we don't need a TLBI when freeing page-table pages.
+ */
+
+#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
+#define tlb_needs_table_invalidate()	(false)
+#endif
+
+#include <asm-generic/tlb.h>
+
+#endif /* _SPARC64_TLB_H */