From 9769c2468d423a1562dd59a5db250bd0a5533ec9 Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Fri, 28 Oct 2005 15:19:11 +0100 Subject: [PATCH] [ARM] 3016/1: Replace map_desc.physical with map_desc.pfn Patch from Deepak Saxena Convert map_desc.physical to map_desc.pfn. This allows us to add support for 36-bit addressed physical devices in the static maps without having to resort to u64 variables. Signed-off-by: Deepak Saxena Signed-off-by: Russell King --- arch/arm/mm/init.c | 12 ++++++------ arch/arm/mm/mm-armv.c | 8 ++++---- include/asm-arm/mach/map.h | 5 ++++- 3 files changed, 14 insertions(+), 11 deletions(-) diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index d1f1ec73500f..f4496813615a 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -262,8 +262,8 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi) if (end_pfn < end) end_pfn = end; - map.physical = mi->bank[i].start; - map.virtual = __phys_to_virt(map.physical); + map.pfn = __phys_to_pfn(mi->bank[i].start); + map.virtual = __phys_to_virt(mi->bank[i].start); map.length = mi->bank[i].size; map.type = MT_MEMORY; @@ -365,7 +365,7 @@ static void __init bootmem_init(struct meminfo *mi) #ifdef CONFIG_XIP_KERNEL #error needs fixing - p->physical = CONFIG_XIP_PHYS_ADDR & PMD_MASK; + p->pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & PMD_MASK); p->virtual = (unsigned long)&_stext & PMD_MASK; p->length = ((unsigned long)&_etext - p->virtual + ~PMD_MASK) & PMD_MASK; p->type = MT_ROM; @@ -439,14 +439,14 @@ static void __init devicemaps_init(struct machine_desc *mdesc) * Map the cache flushing regions. */ #ifdef FLUSH_BASE - map.physical = FLUSH_BASE_PHYS; + map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS); map.virtual = FLUSH_BASE; map.length = PGDIR_SIZE; map.type = MT_CACHECLEAN; create_mapping(&map); #endif #ifdef FLUSH_BASE_MINICACHE - map.physical = FLUSH_BASE_PHYS + PGDIR_SIZE; + map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS + PGDIR_SIZE); map.virtual = FLUSH_BASE_MINICACHE; map.length = PGDIR_SIZE; map.type = MT_MINICLEAN; @@ -464,7 +464,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc) * location (0xffff0000). If we aren't using high-vectors, also * create a mapping at the low-vectors virtual address. */ - map.physical = virt_to_phys(vectors); + map.pfn = __phys_to_pfn(virt_to_phys(vectors)); map.virtual = 0xffff0000; map.length = PAGE_SIZE; map.type = MT_HIGH_VECTORS; diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c index c626361c0f5e..64db10e806b3 100644 --- a/arch/arm/mm/mm-armv.c +++ b/arch/arm/mm/mm-armv.c @@ -483,7 +483,7 @@ void __init create_mapping(struct map_desc *md) if (md->virtual != vectors_base() && md->virtual < TASK_SIZE) { printk(KERN_WARNING "BUG: not creating mapping for " "0x%08lx at 0x%08lx in user region\n", - md->physical, md->virtual); + __pfn_to_phys(md->pfn), md->virtual); return; } @@ -491,7 +491,7 @@ void __init create_mapping(struct map_desc *md) md->virtual >= PAGE_OFFSET && md->virtual < VMALLOC_END) { printk(KERN_WARNING "BUG: mapping for 0x%08lx at 0x%08lx " "overlaps vmalloc space\n", - md->physical, md->virtual); + __pfn_to_phys(md->pfn), md->virtual); } domain = mem_types[md->type].domain; @@ -500,14 +500,14 @@ void __init create_mapping(struct map_desc *md) prot_sect = mem_types[md->type].prot_sect | PMD_DOMAIN(domain); virt = md->virtual; - off = md->physical - virt; + off = __pfn_to_phys(md->pfn) - virt; length = md->length; if (mem_types[md->type].prot_l1 == 0 && (virt & 0xfffff || (virt + off) & 0xfffff || (virt + length) & 0xfffff)) { printk(KERN_WARNING "BUG: map for 0x%08lx at 0x%08lx can not " "be mapped using pages, ignoring.\n", - md->physical, md->virtual); + __pfn_to_phys(md->pfn), md->virtual); return; } diff --git a/include/asm-arm/mach/map.h b/include/asm-arm/mach/map.h index 9ac47cf8d2e4..0619522bd926 100644 --- a/include/asm-arm/mach/map.h +++ b/include/asm-arm/mach/map.h @@ -11,7 +11,7 @@ */ struct map_desc { unsigned long virtual; - unsigned long physical; + unsigned long pfn; unsigned long length; unsigned int type; }; @@ -27,6 +27,9 @@ struct meminfo; #define MT_ROM 6 #define MT_IXP2000_DEVICE 7 +#define __phys_to_pfn(paddr) (paddr >> PAGE_SHIFT) +#define __pfn_to_phys(pfn) (pfn << PAGE_SHIFT) + extern void create_memmap_holes(struct meminfo *); extern void memtable_init(struct meminfo *); extern void iotable_init(struct map_desc *, int); -- 2.30.2