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Commit 600715dc authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Ingo Molnar
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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: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 9dfed08e

arch/powerpc/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/include/asm/types.h

+0 −7
Original line number Diff line number Diff line
@@ -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

arch/x86/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -932,6 +932,9 @@ config X86_PAE 
	  has the cost of more pagetable lookup overhead, and also

	  consumes more pagetable space per process.



config ARCH_PHYS_ADDR_T_64BIT

       def_bool X86_64 || X86_PAE



# Common NUMA Features

config NUMA

	bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"

include/asm-x86/page_32.h

+0 −2
Original line number Diff line number Diff line
@@ -33,7 +33,6 @@ typedef u64 pmdval_t; 
typedef u64	pudval_t;

typedef u64	pgdval_t;

typedef u64	pgprotval_t;

typedef u64	phys_addr_t;



typedef union {

	struct {
@@ -54,7 +53,6 @@ typedef unsigned long pmdval_t; 
typedef unsigned long	pudval_t;

typedef unsigned long	pgdval_t;

typedef unsigned long	pgprotval_t;

typedef unsigned long	phys_addr_t;



typedef union {

	pteval_t pte;

include/asm-x86/page_64.h

+0 −1
Original line number Diff line number Diff line
@@ -79,7 +79,6 @@ typedef unsigned long pmdval_t; 
typedef unsigned long	pudval_t;

typedef unsigned long	pgdval_t;

typedef unsigned long	pgprotval_t;

typedef unsigned long	phys_addr_t;



typedef struct page *pgtable_t;