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generic: redefine resource_size_t as phys_addr_t 

There's no good reason why a resource_size_t shouldn't just be a
physical address, so simply redefine it in terms of phys_addr_t.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jeremy Fitzhardinge 2008-09-11 01:31:50 -07:00 committed by Ingo Molnar
parent 947d0496cf
commit 8308c54d7e
6 changed files with 13 additions and 26 deletions
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1
arch/powerpc/platforms/Kconfig.cputype
View File

@ -135,7 +135,6 @@ config PTE_64BIT
config PHYS_64BIT
bool 'Large physical address support' if E500
depends on 44x || E500
select RESOURCES_64BIT
default y if 44x
---help---
This option enables kernel support for larger than 32-bit physical

16
arch/powerpc/sysdev/ppc4xx_pci.c
View File

@ -41,13 +41,10 @@ extern unsigned long total_memory;
#define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL))
#define U64_TO_U32_HIGH(val) ((u32)((val) >> 32))
#ifdef CONFIG_RESOURCES_64BIT
#define RES_TO_U32_LOW(val) U64_TO_U32_LOW(val)
#define RES_TO_U32_HIGH(val) U64_TO_U32_HIGH(val)
#else
#define RES_TO_U32_LOW(val) (val)
#define RES_TO_U32_HIGH(val) (0)
#endif
#define RES_TO_U32_LOW(val) \
((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_LOW(val) : (val))
#define RES_TO_U32_HIGH(val) \
((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_HIGH(val) : (0))
static inline int ppc440spe_revA(void)
{
@ -145,12 +142,11 @@ static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose,
/* Use that */
res->start = pci_addr;
#ifndef CONFIG_RESOURCES_64BIT
/* Beware of 32 bits resources */
if ((pci_addr + size) > 0x100000000ull)
if (sizeof(resource_size_t) == sizeof(u32) &&
(pci_addr + size) > 0x100000000ull)
res->end = 0xffffffff;
else
#endif
res->end = res->start + size - 1;
break;
}

1
arch/x86/Kconfig
View File

@ -925,7 +925,6 @@ config X86_PAE
def_bool n
prompt "PAE (Physical Address Extension) Support"
depends on X86_32 && !HIGHMEM4G
select RESOURCES_64BIT
help
PAE is required for NX support, and furthermore enables
larger swapspace support for non-overcommit purposes. It

4
arch/x86/kernel/e820.c
View File

@ -1276,12 +1276,10 @@ void __init e820_reserve_resources(void)
res = alloc_bootmem_low(sizeof(struct resource) * e820.nr_map);
for (i = 0; i < e820.nr_map; i++) {
end = e820.map[i].addr + e820.map[i].size - 1;
#ifndef CONFIG_RESOURCES_64BIT
if (end > 0x100000000ULL) {
if (end != (resource_size_t)end) {
res++;
continue;
}
#endif
res->name = e820_type_to_string(e820.map[i].type);
res->start = e820.map[i].addr;
res->end = end;

9
drivers/pci/setup-bus.c
View File

@ -378,11 +378,10 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long
align = 0;
min_align = 0;
for (order = 0; order <= max_order; order++) {
#ifdef CONFIG_RESOURCES_64BIT
resource_size_t align1 = 1ULL << (order + 20);
#else
resource_size_t align1 = 1U << (order + 20);
#endif
resource_size_t align1 = 1;
align1 <<= (order + 20);
if (!align)
min_align = align1;
else if (ALIGN(align + min_align, min_align) < align1)

8
include/linux/types.h
View File

@ -191,18 +191,14 @@ typedef __u32 __bitwise __wsum;
#ifdef __KERNEL__
typedef unsigned __bitwise__ gfp_t;
#ifdef CONFIG_RESOURCES_64BIT
typedef u64 resource_size_t;
#else
typedef u32 resource_size_t;
#endif
#ifdef CONFIG_PHYS_ADDR_T_64BIT
typedef u64 phys_addr_t;
#else
typedef u32 phys_addr_t;
#endif
typedef phys_addr_t resource_size_t;
struct ustat {
__kernel_daddr_t f_tfree;
__kernel_ino_t f_tinode;