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authorJeremy Fitzhardinge <jeremy@goop.org>2008-09-11 01:31:45 -0700
committerIngo Molnar <mingo@elte.hu>2008-09-14 17:24:25 +0200
commit600715dcdf567c86f8b2c6173fcfb4b873e25a19 (patch)
treec2f3ed1c928d3cc47af0573b56c8da2f1df880a0 /arch/powerpc
parent9dfed08eb4086584205717894177a9ee930c88c4 (diff)
generic: add phys_addr_t for holding physical addresses
Add a kernel-wide "phys_addr_t" which is guaranteed to be able to hold any physical address. By default it equals the word size of the architecture, but a 32-bit architecture can set ARCH_PHYS_ADDR_T_64BIT if it needs a 64-bit phys_addr_t. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Kconfig3
-rw-r--r--arch/powerpc/include/asm/types.h7
2 files changed, 3 insertions, 7 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 587da5e0990..f5f83ee6041 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -22,6 +22,9 @@ config WORD_SIZE
config PPC_MERGE
def_bool y
+config ARCH_PHYS_ADDR_T_64BIT
+ def_bool PPC64 || PHYS_64BIT
+
config MMU
bool
default y
diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h
index d3374bc865b..c646f34c4e8 100644
--- a/arch/powerpc/include/asm/types.h
+++ b/arch/powerpc/include/asm/types.h
@@ -48,13 +48,6 @@ typedef struct {
typedef __vector128 vector128;
-/* Physical address used by some IO functions */
-#if defined(CONFIG_PPC64) || defined(CONFIG_PHYS_64BIT)
-typedef u64 phys_addr_t;
-#else
-typedef u32 phys_addr_t;
-#endif
-
#ifdef __powerpc64__
typedef u64 dma_addr_t;
#else