target/linux/layerscape/patches-4.4/7024-Add-APIs-to-setup-HugeTLB-mappings-for-USDPAA.patch

   1 From 2dcd28f7b4f5b92686da45f4ec46802026fb8573 Mon Sep 17 00:00:00 2001
   2 From: Roy Pledge <Roy.Pledge@freescale.com>
   3 Date: Mon, 11 Jul 2016 14:34:59 +0800
   4 Subject: [PATCH 24/70] Add APIs to setup HugeTLB mappings for USDPAA
   5
   6 commit 189653d40d5dc41b8bd4cfb61f766bd8a89b1e34
   7 [context adjustment]
   8
   9 Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
  10 ---
  11  arch/powerpc/mm/fsl_booke_mmu.c |   14 +++++++++++++-
  12  arch/powerpc/mm/mmu_decl.h      |    6 ++++++
  13  2 files changed, 19 insertions(+), 1 deletion(-)
  14
  15 --- a/arch/powerpc/mm/fsl_booke_mmu.c
  16 +++ b/arch/powerpc/mm/fsl_booke_mmu.c
  17 @@ -105,7 +105,7 @@ unsigned long p_mapped_by_tlbcam(phys_ad
  18   * an unsigned long (for example, 32-bit implementations cannot support a 4GB
  19   * size).
  20   */
  21 -static void settlbcam(int index, unsigned long virt, phys_addr_t phys,
  22 +void settlbcam(int index, unsigned long virt, phys_addr_t phys,
  23                 unsigned long size, unsigned long flags, unsigned int pid)
  24  {
  25         unsigned int tsize;
  26 @@ -143,6 +143,18 @@ static void settlbcam(int index, unsigne
  27         tlbcam_addrs[index].phys = phys;
  28  }
  29
  30 +void cleartlbcam(unsigned long virt, unsigned int pid)
  31 +{
  32 +        int i = 0;
  33 +        for (i = 0; i < NUM_TLBCAMS; i++) {
  34 +                if (tlbcam_addrs[i].start == virt) {
  35 +                        TLBCAM[i].MAS1 = 0;
  36 +                        loadcam_entry(i);
  37 +                        return;
  38 +                }
  39 +        }
  40 +}
  41 +
  42  unsigned long calc_cam_sz(unsigned long ram, unsigned long virt,
  43                           phys_addr_t phys)
  44  {
  45 --- a/arch/powerpc/mm/mmu_decl.h
  46 +++ b/arch/powerpc/mm/mmu_decl.h
  47 @@ -91,6 +91,12 @@ extern void _tlbia(void);
  48
  49  #endif /* CONFIG_PPC_MMU_NOHASH */
  50
  51 +void settlbcam(int index, unsigned long virt, phys_addr_t phys,
  52 +               unsigned long size, unsigned long flags, unsigned int pid);
  53 +
  54 +void cleartlbcam(unsigned long virt, unsigned int pid);
  55 +
  56 +
  57  #ifdef CONFIG_PPC32
  58
  59  extern void mapin_ram(void);