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Remove pmap_pvo_allocf zone alloc function. It was a way of

Browse source 
using the direct-mapping of physmem to force PTE data structures
to be physically addressable so the interrupt-time real-mode
DSI trap handler could perform PTE spills. However, the memory
may have been > 256Mb, which would have caused a BAT spill and
double-interrupt.

The new trap code no longer handles PTE spills, so the requirement
that these pages be direct-mapped no longer applies. The irony is
UMA_MD_SMALL_ALLOC will return direct mappings for these structs :-)
This commit is contained in:
Peter Grehan 2004-02-04 13:16:21 +00:00
parent 112a8d7bdb
commit 0ee6dbd789
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125442
3 changed files with 12 additions and 81 deletions
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31
sys/powerpc/aim/mmu_oea.c
View file

@ -246,8 +246,6 @@ struct pvo_head pmap_pvo_unmanaged =
uma_zone_t pmap_upvo_zone; /* zone for pvo entries for unmanaged pages */
uma_zone_t pmap_mpvo_zone; /* zone for pvo entries for managed pages */
struct vm_object pmap_upvo_zone_obj;
struct vm_object pmap_mpvo_zone_obj;
#define BPVO_POOL_SIZE 32768
static struct pvo_entry *pmap_bpvo_pool;
@ -310,7 +308,6 @@ static struct pte *pmap_pvo_to_pte(const struct pvo_entry *, int);
/*
* Utility routines.
*/
static void * pmap_pvo_allocf(uma_zone_t, int, u_int8_t *, int);
static struct pvo_entry *pmap_rkva_alloc(void);
static void pmap_pa_map(struct pvo_entry *, vm_offset_t,
struct pte *, int *);
@ -1092,11 +1089,11 @@ pmap_init(vm_offset_t phys_start, vm_offset_t phys_end)
CTR0(KTR_PMAP, "pmap_init");
pmap_upvo_zone = uma_zcreate("UPVO entry", sizeof (struct pvo_entry),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_VM | UMA_ZONE_NOFREE);
uma_zone_set_allocf(pmap_upvo_zone, pmap_pvo_allocf);
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
UMA_ZONE_VM | UMA_ZONE_NOFREE);
pmap_mpvo_zone = uma_zcreate("MPVO entry", sizeof(struct pvo_entry),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_VM | UMA_ZONE_NOFREE);
uma_zone_set_allocf(pmap_mpvo_zone, pmap_pvo_allocf);
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
UMA_ZONE_VM | UMA_ZONE_NOFREE);
pmap_initialized = TRUE;
}
@ -2007,26 +2004,6 @@ pmap_pvo_to_pte(const struct pvo_entry *pvo, int pteidx)
return (NULL);
}
static void *
pmap_pvo_allocf(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
{
static vm_pindex_t color;
vm_page_t m;
if (bytes != PAGE_SIZE)
panic("pmap_pvo_allocf: benno was shortsighted. hit him.");
*flags = UMA_SLAB_PRIV;
/*
* The color is only a hint. Thus, a data race in the read-
* modify-write operation below isn't a catastrophe.
*/
m = vm_page_alloc(NULL, color++, VM_ALLOC_NOOBJ | VM_ALLOC_SYSTEM);
if (m == NULL)
return (NULL);
return ((void *)VM_PAGE_TO_PHYS(m));
}
/*
* XXX: THIS STUFF SHOULD BE IN pte.c?
*/

31
sys/powerpc/powerpc/mmu_oea.c
View file

@ -246,8 +246,6 @@ struct pvo_head pmap_pvo_unmanaged =
uma_zone_t pmap_upvo_zone; /* zone for pvo entries for unmanaged pages */
uma_zone_t pmap_mpvo_zone; /* zone for pvo entries for managed pages */
struct vm_object pmap_upvo_zone_obj;
struct vm_object pmap_mpvo_zone_obj;
#define BPVO_POOL_SIZE 32768
static struct pvo_entry *pmap_bpvo_pool;
@ -310,7 +308,6 @@ static struct pte *pmap_pvo_to_pte(const struct pvo_entry *, int);
/*
* Utility routines.
*/
static void * pmap_pvo_allocf(uma_zone_t, int, u_int8_t *, int);
static struct pvo_entry *pmap_rkva_alloc(void);
static void pmap_pa_map(struct pvo_entry *, vm_offset_t,
struct pte *, int *);
@ -1092,11 +1089,11 @@ pmap_init(vm_offset_t phys_start, vm_offset_t phys_end)
CTR0(KTR_PMAP, "pmap_init");
pmap_upvo_zone = uma_zcreate("UPVO entry", sizeof (struct pvo_entry),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_VM | UMA_ZONE_NOFREE);
uma_zone_set_allocf(pmap_upvo_zone, pmap_pvo_allocf);
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
UMA_ZONE_VM | UMA_ZONE_NOFREE);
pmap_mpvo_zone = uma_zcreate("MPVO entry", sizeof(struct pvo_entry),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_VM | UMA_ZONE_NOFREE);
uma_zone_set_allocf(pmap_mpvo_zone, pmap_pvo_allocf);
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
UMA_ZONE_VM | UMA_ZONE_NOFREE);
pmap_initialized = TRUE;
}
@ -2007,26 +2004,6 @@ pmap_pvo_to_pte(const struct pvo_entry *pvo, int pteidx)
return (NULL);
}
static void *
pmap_pvo_allocf(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
{
static vm_pindex_t color;
vm_page_t m;
if (bytes != PAGE_SIZE)
panic("pmap_pvo_allocf: benno was shortsighted. hit him.");
*flags = UMA_SLAB_PRIV;
/*
* The color is only a hint. Thus, a data race in the read-
* modify-write operation below isn't a catastrophe.
*/
m = vm_page_alloc(NULL, color++, VM_ALLOC_NOOBJ | VM_ALLOC_SYSTEM);
if (m == NULL)
return (NULL);
return ((void *)VM_PAGE_TO_PHYS(m));
}
/*
* XXX: THIS STUFF SHOULD BE IN pte.c?
*/

31
sys/powerpc/powerpc/pmap.c
View file

@ -246,8 +246,6 @@ struct pvo_head pmap_pvo_unmanaged =
uma_zone_t pmap_upvo_zone; /* zone for pvo entries for unmanaged pages */
uma_zone_t pmap_mpvo_zone; /* zone for pvo entries for managed pages */
struct vm_object pmap_upvo_zone_obj;
struct vm_object pmap_mpvo_zone_obj;
#define BPVO_POOL_SIZE 32768
static struct pvo_entry *pmap_bpvo_pool;
@ -310,7 +308,6 @@ static struct pte *pmap_pvo_to_pte(const struct pvo_entry *, int);
/*
* Utility routines.
*/
static void * pmap_pvo_allocf(uma_zone_t, int, u_int8_t *, int);
static struct pvo_entry *pmap_rkva_alloc(void);
static void pmap_pa_map(struct pvo_entry *, vm_offset_t,
struct pte *, int *);
@ -1092,11 +1089,11 @@ pmap_init(vm_offset_t phys_start, vm_offset_t phys_end)
CTR0(KTR_PMAP, "pmap_init");
pmap_upvo_zone = uma_zcreate("UPVO entry", sizeof (struct pvo_entry),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_VM | UMA_ZONE_NOFREE);
uma_zone_set_allocf(pmap_upvo_zone, pmap_pvo_allocf);
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
UMA_ZONE_VM | UMA_ZONE_NOFREE);
pmap_mpvo_zone = uma_zcreate("MPVO entry", sizeof(struct pvo_entry),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_VM | UMA_ZONE_NOFREE);
uma_zone_set_allocf(pmap_mpvo_zone, pmap_pvo_allocf);
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
UMA_ZONE_VM | UMA_ZONE_NOFREE);
pmap_initialized = TRUE;
}
@ -2007,26 +2004,6 @@ pmap_pvo_to_pte(const struct pvo_entry *pvo, int pteidx)
return (NULL);
}
static void *
pmap_pvo_allocf(uma_zone_t zone, int bytes, u_int8_t *flags, int wait)
{
static vm_pindex_t color;
vm_page_t m;
if (bytes != PAGE_SIZE)
panic("pmap_pvo_allocf: benno was shortsighted. hit him.");
*flags = UMA_SLAB_PRIV;
/*
* The color is only a hint. Thus, a data race in the read-
* modify-write operation below isn't a catastrophe.
*/
m = vm_page_alloc(NULL, color++, VM_ALLOC_NOOBJ | VM_ALLOC_SYSTEM);
if (m == NULL)
return (NULL);
return ((void *)VM_PAGE_TO_PHYS(m));
}
/*
* XXX: THIS STUFF SHOULD BE IN pte.c?
*/