diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/3011-arm-add-new-non-shareable-ioremap.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/3011-arm-add-new-non-shareable-ioremap.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/3011-arm-add-new-non-shareable-ioremap.patch b/target/linux/layerscape/patches-4.4/3011-arm-add-new-non-shareable-ioremap.patch new file mode 100644 index 0000000000..f3ef2b3ffa --- /dev/null +++ b/target/linux/layerscape/patches-4.4/3011-arm-add-new-non-shareable-ioremap.patch @@ -0,0 +1,99 @@ +From 707627a28924320a7a36bdb8b02c05651c0c384d Mon Sep 17 00:00:00 2001 +From: Pan Jiafei <Jiafei.Pan@nxp.com> +Date: Fri, 8 Jul 2016 11:16:13 +0800 +Subject: [PATCH 11/70] arm: add new non-shareable ioremap + +commit 17d7448eef0fa57a0899e6a864d875e7a9082561 +[modify ioremap_cache_ns according to Linux v4.4.7] + +Signed-off-by: Pan Jiafei <Jiafei.Pan@nxp.com> +Integrated-by: Zhao Qiang <qiang.zhao@nxp.com> +--- + arch/arm/include/asm/io.h | 4 ++++ + arch/arm/include/asm/mach/map.h | 4 ++-- + arch/arm/mm/ioremap.c | 7 +++++++ + arch/arm/mm/mmu.c | 9 +++++++++ + 4 files changed, 22 insertions(+), 2 deletions(-) + +--- a/arch/arm/include/asm/io.h ++++ b/arch/arm/include/asm/io.h +@@ -129,6 +129,7 @@ static inline u32 __raw_readl(const vola + #define MT_DEVICE_NONSHARED 1 + #define MT_DEVICE_CACHED 2 + #define MT_DEVICE_WC 3 ++#define MT_MEMORY_RW_NS 4 + /* + * types 4 onwards can be found in asm/mach/map.h and are undefined + * for ioremap +@@ -399,6 +400,9 @@ void __iomem *ioremap_wc(resource_size_t + #define ioremap_wc ioremap_wc + #define ioremap_wt ioremap_wc + ++void __iomem *ioremap_cache_ns(resource_size_t res_cookie, size_t size); ++#define ioremap_cache_ns ioremap_cache_ns ++ + void iounmap(volatile void __iomem *iomem_cookie); + #define iounmap iounmap + +--- a/arch/arm/include/asm/mach/map.h ++++ b/arch/arm/include/asm/mach/map.h +@@ -21,9 +21,9 @@ struct map_desc { + unsigned int type; + }; + +-/* types 0-3 are defined in asm/io.h */ ++/* types 0-4 are defined in asm/io.h */ + enum { +- MT_UNCACHED = 4, ++ MT_UNCACHED = 5, + MT_CACHECLEAN, + MT_MINICLEAN, + MT_LOW_VECTORS, +--- a/arch/arm/mm/ioremap.c ++++ b/arch/arm/mm/ioremap.c +@@ -394,6 +394,13 @@ void __iomem *ioremap_wc(resource_size_t + } + EXPORT_SYMBOL(ioremap_wc); + ++void __iomem *ioremap_cache_ns(resource_size_t res_cookie, size_t size) ++{ ++ return arch_ioremap_caller(res_cookie, size, MT_MEMORY_RW_NS, ++ __builtin_return_address(0)); ++} ++EXPORT_SYMBOL(ioremap_cache_ns); ++ + /* + * Remap an arbitrary physical address space into the kernel virtual + * address space as memory. Needed when the kernel wants to execute +--- a/arch/arm/mm/mmu.c ++++ b/arch/arm/mm/mmu.c +@@ -313,6 +313,13 @@ static struct mem_type mem_types[] = { + .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, + .domain = DOMAIN_KERNEL, + }, ++ [MT_MEMORY_RW_NS] = { ++ .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | ++ L_PTE_XN, ++ .prot_l1 = PMD_TYPE_TABLE, ++ .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_XN, ++ .domain = DOMAIN_KERNEL, ++ }, + [MT_ROM] = { + .prot_sect = PMD_TYPE_SECT, + .domain = DOMAIN_KERNEL, +@@ -644,6 +651,7 @@ static void __init build_mem_type_table( + } + kern_pgprot |= PTE_EXT_AF; + vecs_pgprot |= PTE_EXT_AF; ++ mem_types[MT_MEMORY_RW_NS].prot_pte |= PTE_EXT_AF | cp->pte; + + /* + * Set PXN for user mappings +@@ -672,6 +680,7 @@ static void __init build_mem_type_table( + mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot; + mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd; + mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot; ++ mem_types[MT_MEMORY_RW_NS].prot_sect |= ecc_mask | cp->pmd; + mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot; + mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= ecc_mask; + mem_types[MT_ROM].prot_sect |= cp->pmd; |