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| author | Stefan Roese <sr@denx.de> | 2008-07-10 01:09:23 +1000 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2008-07-09 14:13:01 -0400 |
| commit | 2bf3016f89344d4cd8b2c96bbec2b642a2bde413 (patch) | |
| tree | dd472d2d20ae41bc93c189ca141ea61ddae9826a /arch/powerpc | |
| parent | 3fa69dd57759cb45fa48bb70a055025d25a7e4e8 (diff) | |
| download | linux-stable-2bf3016f89344d4cd8b2c96bbec2b642a2bde413.tar.gz linux-stable-2bf3016f89344d4cd8b2c96bbec2b642a2bde413.tar.bz2 linux-stable-2bf3016f89344d4cd8b2c96bbec2b642a2bde413.zip | |
powerpc: Fix problems with 32bit PPC's running with >= 4GB of RAM
This patch enables 32bit PPC's (with 36bit physical address space, e.g.
IBM/AMCC PPC44x) to run with >= 4GB of RAM. Mostly its just replacing types
(unsigned long -> phys_addr_t).
Tested on an AMCC Katmai with 4GB of DDR2.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/mm/init_32.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 4 |
3 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index 45418590b6a9..388ceda632f3 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -57,8 +57,8 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -unsigned long total_memory; -unsigned long total_lowmem; +phys_addr_t total_memory; +phys_addr_t total_lowmem; phys_addr_t memstart_addr = (phys_addr_t)~0ull; EXPORT_SYMBOL(memstart_addr); diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 776ba6ad5e1e..1ca2235f0965 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -330,7 +330,7 @@ static int __init mark_nonram_nosave(void) void __init paging_init(void) { unsigned long total_ram = lmb_phys_mem_size(); - unsigned long top_of_ram = lmb_end_of_DRAM(); + phys_addr_t top_of_ram = lmb_end_of_DRAM(); unsigned long max_zone_pfns[MAX_NR_ZONES]; #ifdef CONFIG_PPC32 @@ -349,10 +349,10 @@ void __init paging_init(void) kmap_prot = PAGE_KERNEL; #endif /* CONFIG_HIGHMEM */ - printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n", - top_of_ram, total_ram); + printk(KERN_DEBUG "Top of RAM: 0x%llx, Total RAM: 0x%lx\n", + (u64)top_of_ram, total_ram); printk(KERN_DEBUG "Memory hole size: %ldMB\n", - (top_of_ram - total_ram) >> 20); + (long int)((top_of_ram - total_ram) >> 20)); memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); #ifdef CONFIG_HIGHMEM max_zone_pfns[ZONE_DMA] = lowmem_end_addr >> PAGE_SHIFT; diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index 46585b7bb194..fab3cfad4099 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -49,8 +49,8 @@ extern unsigned int num_tlbcam_entries; extern unsigned long ioremap_bot; extern unsigned long __max_low_memory; extern phys_addr_t __initial_memory_limit_addr; -extern unsigned long total_memory; -extern unsigned long total_lowmem; +extern phys_addr_t total_memory; +extern phys_addr_t total_lowmem; extern phys_addr_t memstart_addr; extern phys_addr_t lowmem_end_addr; |