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authorJeremy Fitzhardinge <jeremy@goop.org>2008-09-11 01:31:50 -0700
committerIngo Molnar <mingo@elte.hu>2008-09-14 17:24:27 +0200
commit8308c54d7e312f7a03e2ce2057d0837e6fe3843f (patch)
tree452b32a3d2182c4d150d632f243e31f16b2ac0ce
parent947d0496cf3e12ebfa70b3eaf561c25403247ce9 (diff)
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>
-rw-r--r--arch/powerpc/platforms/Kconfig.cputype1
-rw-r--r--arch/powerpc/sysdev/ppc4xx_pci.c16
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/kernel/e820.c4
-rw-r--r--drivers/pci/setup-bus.c9
-rw-r--r--include/linux/types.h8
6 files changed, 13 insertions, 26 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 7f651273386..be852fd407a 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -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
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index fb368dfde5d..e8a76d9539d 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -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;
}
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index a0ffb5188c8..b4e1875f986 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -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
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 66e48aa2dd1..477f4bb7e55 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -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;
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 1aad599816f..f250a90ee45 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -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)
diff --git a/include/linux/types.h b/include/linux/types.h
index 022c668496d..f24f7beb47d 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -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;