memory.h File Reference

#include <asm/kvm_mmu.h>
#include <asm/page.h>
#include <linux/types.h>

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Classes
struct	hyp_page

Macros
#define	hyp_vmemmap   ((struct hyp_page *)__hyp_vmemmap)
#define	__hyp_va(phys)   ((void *)((phys_addr_t)(phys) - hyp_physvirt_offset))
#define	hyp_phys_to_pfn(phys)   ((phys) >> PAGE_SHIFT)
#define	hyp_pfn_to_phys(pfn)   ((phys_addr_t)((pfn) << PAGE_SHIFT))
#define	hyp_phys_to_page(phys)   (&hyp_vmemmap[hyp_phys_to_pfn(phys)])
#define	hyp_virt_to_page(virt)   hyp_phys_to_page(__hyp_pa(virt))
#define	hyp_virt_to_pfn(virt)   hyp_phys_to_pfn(__hyp_pa(virt))
#define	hyp_page_to_pfn(page)   ((struct hyp_page *)(page) - hyp_vmemmap)
#define	hyp_page_to_phys(page)   hyp_pfn_to_phys((hyp_page_to_pfn(page)))
#define	hyp_page_to_virt(page)   __hyp_va(hyp_page_to_phys(page))
#define	hyp_page_to_pool(page)   (((struct hyp_page *)page)->pool)

Functions
static void *	hyp_phys_to_virt (phys_addr_t phys)
static phys_addr_t	hyp_virt_to_phys (void *addr)
static int	hyp_page_count (void *addr)
static void	hyp_page_ref_inc (struct hyp_page *p)
static void	hyp_page_ref_dec (struct hyp_page *p)
static int	hyp_page_ref_dec_and_test (struct hyp_page *p)
static void	hyp_set_page_refcounted (struct hyp_page *p)

Variables
u64	__hyp_vmemmap

Macro Definition Documentation

__hyp_va

#define __hyp_va

(

phys

)

((void *)((phys_addr_t)(phys) - hyp_physvirt_offset))

Definition at line 18 of file memory.h.

hyp_page_to_pfn

#define hyp_page_to_pfn

(

page

)

((struct hyp_page *)(page) - hyp_vmemmap)

Definition at line 36 of file memory.h.

hyp_page_to_phys

#define hyp_page_to_phys

(

page

)

hyp_pfn_to_phys((hyp_page_to_pfn(page)))

Definition at line 37 of file memory.h.

hyp_page_to_pool

#define hyp_page_to_pool

(

page

)

(((struct hyp_page *)page)->pool)

Definition at line 39 of file memory.h.

hyp_page_to_virt

#define hyp_page_to_virt

(

page

)

__hyp_va(hyp_page_to_phys(page))

Definition at line 38 of file memory.h.

hyp_pfn_to_phys

#define hyp_pfn_to_phys

(

pfn

)

((phys_addr_t)((pfn) << PAGE_SHIFT))

Definition at line 31 of file memory.h.

hyp_phys_to_page

#define hyp_phys_to_page

(

phys

)

(&hyp_vmemmap[hyp_phys_to_pfn(phys)])

Definition at line 32 of file memory.h.

hyp_phys_to_pfn

#define hyp_phys_to_pfn

(

phys

)

((phys) >> PAGE_SHIFT)

Definition at line 30 of file memory.h.

hyp_virt_to_page

#define hyp_virt_to_page

(

virt

)

hyp_phys_to_page(__hyp_pa(virt))

Definition at line 33 of file memory.h.

hyp_virt_to_pfn

#define hyp_virt_to_pfn

(

virt

)

hyp_phys_to_pfn(__hyp_pa(virt))

Definition at line 34 of file memory.h.

hyp_vmemmap

#define hyp_vmemmap   ((struct hyp_page *)__hyp_vmemmap)

Definition at line 16 of file memory.h.

Function Documentation

hyp_page_count()

static int hyp_page_count ( void *  addr )

inlinestatic

Definition at line 45 of file memory.h.

{
    struct hyp_page *p = hyp_virt_to_page(addr);
 
    return p->refcount;
}

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hyp_page_ref_dec()

static void hyp_page_ref_dec ( struct hyp_page *  p )

inlinestatic

Definition at line 58 of file memory.h.

{
    BUG_ON(!p->refcount);
    p->refcount--;
}

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hyp_page_ref_dec_and_test()

static int hyp_page_ref_dec_and_test ( struct hyp_page *  p )

inlinestatic

Definition at line 64 of file memory.h.

{
    hyp_page_ref_dec(p);
    return (p->refcount == 0);
}

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hyp_page_ref_inc()

static void hyp_page_ref_inc ( struct hyp_page *  p )

inlinestatic

Definition at line 52 of file memory.h.

{
    BUG_ON(p->refcount == USHRT_MAX);
    p->refcount++;
}

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hyp_phys_to_virt()

static void* hyp_phys_to_virt ( phys_addr_t  phys )

inlinestatic

Definition at line 20 of file memory.h.

{
    return __hyp_va(phys);
}

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hyp_set_page_refcounted()

static void hyp_set_page_refcounted ( struct hyp_page *  p )

inlinestatic

Definition at line 70 of file memory.h.

{
    BUG_ON(p->refcount);
    p->refcount = 1;
}

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hyp_virt_to_phys()

static phys_addr_t hyp_virt_to_phys ( void *  addr )

inlinestatic

Definition at line 25 of file memory.h.

{
    return __hyp_pa(addr);
}

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Variable Documentation

__hyp_vmemmap

u64 __hyp_vmemmap

extern

Definition at line 10 of file page_alloc.c.