arch/mips/include/asm/tlb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_TLB_H
   3 #define __ASM_TLB_H
   4
   5 #include <asm/cpu-features.h>
   6 #include <asm/mipsregs.h>
   7
   8 #define _UNIQUE_ENTRYHI(base, idx)                                      \
   9                 (((base) + ((idx) << (PAGE_SHIFT + 1))) |               \
  10                  (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
  11 #define UNIQUE_ENTRYHI(idx)             _UNIQUE_ENTRYHI(CKSEG0, idx)
  12 #define UNIQUE_GUEST_ENTRYHI(idx)       _UNIQUE_ENTRYHI(CKSEG1, idx)
  13
  14 static inline unsigned int num_wired_entries(void)
  15 {
  16         unsigned int wired = read_c0_wired();
  17
  18         if (cpu_has_mips_r6)
  19                 wired &= MIPSR6_WIRED_WIRED;
  20
  21         return wired;
  22 }
  23
  24 #include <asm-generic/tlb.h>
  25
  26 #endif /* __ASM_TLB_H */