target/linux/layerscape/patches-5.4/301-arch-0004-arm64-add-ioremap-for-normal-cacheable-non-shareable.patch

   1 From 120c8f221cb18f6630d5cb954484bac88288cced Mon Sep 17 00:00:00 2001
   2 From: Haiying Wang <Haiying.Wang@freescale.com>
   3 Date: Wed, 22 Apr 2015 13:07:25 -0400
   4 Subject: [PATCH] arm64: add ioremap for normal cacheable non-shareable memory
   5
   6 Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
   7 Reviewed-by: Roy Pledge <roy.pledge@freescale.com>
   8 Reviewed-by: Stuart Yoder <stuart.yoder@freescale.com>
   9 ---
  10  arch/arm64/include/asm/io.h           | 1 +
  11  arch/arm64/include/asm/pgtable-prot.h | 1 +
  12  2 files changed, 2 insertions(+)
  13
  14 --- a/arch/arm64/include/asm/io.h
  15 +++ b/arch/arm64/include/asm/io.h
  16 @@ -170,6 +170,7 @@ extern void __iomem *ioremap_cache(phys_
  17  #define ioremap_nocache(addr, size)    __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
  18  #define ioremap_wc(addr, size)         __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
  19  #define ioremap_wt(addr, size)         __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
  20 +#define ioremap_cache_ns(addr, size)   __ioremap((addr), (size), __pgprot(PROT_NORMAL_NS))
  21
  22  /*
  23   * PCI configuration space mapping function.
  24 --- a/arch/arm64/include/asm/pgtable-prot.h
  25 +++ b/arch/arm64/include/asm/pgtable-prot.h
  26 @@ -37,6 +37,7 @@
  27  #define PROT_NORMAL_NC         (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_NC))
  28  #define PROT_NORMAL_WT         (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL_WT))
  29  #define PROT_NORMAL            (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL))
  30 +#define PROT_NORMAL_NS         (PTE_TYPE_PAGE | PTE_AF | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_NORMAL))
  31
  32  #define PROT_SECT_DEVICE_nGnRE (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_DEVICE_nGnRE))
  33  #define PROT_SECT_NORMAL       (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL))