mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
32c74552b2
All updated automatically. Compile-tested on: lantiq/xrx200, armvirt/64 Runtime-tested on: lantiq/xrx200, armvirt/64 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
96 lines
3.1 KiB
Diff
96 lines
3.1 KiB
Diff
From e5bf75ca33946d81c82014168042a64db7c81551 Mon Sep 17 00:00:00 2001
|
|
From: Pan Jiafei <Jiafei.Pan@nxp.com>
|
|
Date: Thu, 17 Mar 2016 02:01:03 +0000
|
|
Subject: [PATCH] arm: add new non-shareable ioremap
|
|
|
|
Signed-off-by: Pan Jiafei <Jiafei.Pan@nxp.com>
|
|
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
|
|
---
|
|
arch/arm/include/asm/io.h | 3 +++
|
|
arch/arm/include/asm/mach/map.h | 4 ++--
|
|
arch/arm/mm/ioremap.c | 7 +++++++
|
|
arch/arm/mm/mmu.c | 9 +++++++++
|
|
4 files changed, 21 insertions(+), 2 deletions(-)
|
|
|
|
--- a/arch/arm/include/asm/io.h
|
|
+++ b/arch/arm/include/asm/io.h
|
|
@@ -123,6 +123,7 @@ 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
|
|
@@ -438,6 +439,8 @@ 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);
|
|
+
|
|
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
|
|
@@ -18,9 +18,9 @@ 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
|
|
@@ -401,6 +401,13 @@ 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
|
|
@@ -314,6 +314,13 @@ static struct mem_type mem_types[] __ro_
|
|
.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,
|
|
@@ -650,6 +657,7 @@ 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
|
|
@@ -678,6 +686,7 @@ 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;
|