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- fix zero-sized stack alloc from previous commit. a default is now

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selected ala sparc64
- KSEIII routines implemented (taken from i386/sparc64)

Approved by: Benno
This commit is contained in:
grehan 2002-10-04 01:13:34 +00:00
parent 8fd35a03b5
commit 40bdd697c2
3 changed files with 294 additions and 30 deletions
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108
sys/powerpc/aim/mmu_oea.c
View File

@ -1544,11 +1544,18 @@ pmap_remove_pages(pmap_t pm, vm_offset_t sva, vm_offset_t eva)
void
pmap_new_thread(struct thread *td, int pages)
{
vm_page_t ma[KSTACK_MAX_PAGES];
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
u_int i;
/* Bounds check */
if (pages <= 1)
pages = KSTACK_PAGES;
else if (pages > KSTACK_MAX_PAGES)
pages = KSTACK_MAX_PAGES;
/*
* Allocate object for the kstack.
*/
@ -1578,46 +1585,127 @@ pmap_new_thread(struct thread *td, int pages)
*/
m = vm_page_grab(ksobj, i,
VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
/*
* Enter the page into the kernel address space.
*/
pmap_kenter(ks + i * PAGE_SIZE, VM_PAGE_TO_PHYS(m));
ma[i] = m;
vm_page_wakeup(m);
vm_page_flag_clear(m, PG_ZERO);
m->valid = VM_PAGE_BITS_ALL;
}
/*
* Enter the page into the kernel address space
*/
pmap_qenter(ks, ma, pages);
}
void
pmap_dispose_thread(struct thread *td)
{
TODO;
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = td->td_kstack;
for (i = 0; i < pages ; i++) {
m = vm_page_lookup(ksobj, i);
if (m == NULL)
panic("pmap_dispose_thread: kstack already missing?");
vm_page_lock_queues();
vm_page_busy(m);
vm_page_unwire(m, 0);
vm_page_free(m);
vm_page_unlock_queues();
}
pmap_qremove(ks, pages);
kmem_free(kernel_map, ks - (KSTACK_GUARD_PAGES * PAGE_SIZE),
(pages + KSTACK_GUARD_PAGES) * PAGE_SIZE);
vm_object_deallocate(ksobj);
}
void
pmap_new_altkstack(struct thread *td, int pages)
{
TODO;
/* shuffle the original stack */
td->td_altkstack_obj = td->td_kstack_obj;
td->td_altkstack = td->td_kstack;
td->td_altkstack_pages = td->td_kstack_pages;
pmap_new_thread(td, pages);
}
void
pmap_dispose_altkstack(struct thread *td)
{
TODO;
pmap_dispose_thread(td);
/* restore the original kstack */
td->td_kstack = td->td_altkstack;
td->td_kstack_obj = td->td_altkstack_obj;
td->td_kstack_pages = td->td_altkstack_pages;
td->td_altkstack = 0;
td->td_altkstack_obj = NULL;
td->td_altkstack_pages = 0;
}
void
pmap_swapin_thread(struct thread *td)
{
TODO;
vm_page_t ma[KSTACK_MAX_PAGES];
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int rv;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = td->td_kstack;
for (i = 0; i < pages; i++) {
m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
if (m->valid != VM_PAGE_BITS_ALL) {
rv = vm_pager_get_pages(ksobj, &m, 1, 0);
if (rv != VM_PAGER_OK)
panic("pmap_swapin_thread: cannot get kstack");
m = vm_page_lookup(ksobj, i);
m->valid = VM_PAGE_BITS_ALL;
}
ma[i] = m;
vm_page_lock_queues();
vm_page_wire(m);
vm_page_wakeup(m);
vm_page_unlock_queues();
}
pmap_qenter(ks, ma, pages);
}
void
pmap_swapout_thread(struct thread *td)
{
TODO;
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = (vm_offset_t)td->td_kstack;
for (i = 0; i < pages; i++) {
m = vm_page_lookup(ksobj, i);
if (m == NULL)
panic("pmap_swapout_thread: kstack already missing?");
vm_page_lock_queues();
vm_page_dirty(m);
vm_page_unwire(m, 0);
vm_page_unlock_queues();
}
pmap_qremove(ks, pages);
}
/*

108
sys/powerpc/powerpc/mmu_oea.c
View File

@ -1544,11 +1544,18 @@ pmap_remove_pages(pmap_t pm, vm_offset_t sva, vm_offset_t eva)
void
pmap_new_thread(struct thread *td, int pages)
{
vm_page_t ma[KSTACK_MAX_PAGES];
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
u_int i;
/* Bounds check */
if (pages <= 1)
pages = KSTACK_PAGES;
else if (pages > KSTACK_MAX_PAGES)
pages = KSTACK_MAX_PAGES;
/*
* Allocate object for the kstack.
*/
@ -1578,46 +1585,127 @@ pmap_new_thread(struct thread *td, int pages)
*/
m = vm_page_grab(ksobj, i,
VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
/*
* Enter the page into the kernel address space.
*/
pmap_kenter(ks + i * PAGE_SIZE, VM_PAGE_TO_PHYS(m));
ma[i] = m;
vm_page_wakeup(m);
vm_page_flag_clear(m, PG_ZERO);
m->valid = VM_PAGE_BITS_ALL;
}
/*
* Enter the page into the kernel address space
*/
pmap_qenter(ks, ma, pages);
}
void
pmap_dispose_thread(struct thread *td)
{
TODO;
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = td->td_kstack;
for (i = 0; i < pages ; i++) {
m = vm_page_lookup(ksobj, i);
if (m == NULL)
panic("pmap_dispose_thread: kstack already missing?");
vm_page_lock_queues();
vm_page_busy(m);
vm_page_unwire(m, 0);
vm_page_free(m);
vm_page_unlock_queues();
}
pmap_qremove(ks, pages);
kmem_free(kernel_map, ks - (KSTACK_GUARD_PAGES * PAGE_SIZE),
(pages + KSTACK_GUARD_PAGES) * PAGE_SIZE);
vm_object_deallocate(ksobj);
}
void
pmap_new_altkstack(struct thread *td, int pages)
{
TODO;
/* shuffle the original stack */
td->td_altkstack_obj = td->td_kstack_obj;
td->td_altkstack = td->td_kstack;
td->td_altkstack_pages = td->td_kstack_pages;
pmap_new_thread(td, pages);
}
void
pmap_dispose_altkstack(struct thread *td)
{
TODO;
pmap_dispose_thread(td);
/* restore the original kstack */
td->td_kstack = td->td_altkstack;
td->td_kstack_obj = td->td_altkstack_obj;
td->td_kstack_pages = td->td_altkstack_pages;
td->td_altkstack = 0;
td->td_altkstack_obj = NULL;
td->td_altkstack_pages = 0;
}
void
pmap_swapin_thread(struct thread *td)
{
TODO;
vm_page_t ma[KSTACK_MAX_PAGES];
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int rv;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = td->td_kstack;
for (i = 0; i < pages; i++) {
m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
if (m->valid != VM_PAGE_BITS_ALL) {
rv = vm_pager_get_pages(ksobj, &m, 1, 0);
if (rv != VM_PAGER_OK)
panic("pmap_swapin_thread: cannot get kstack");
m = vm_page_lookup(ksobj, i);
m->valid = VM_PAGE_BITS_ALL;
}
ma[i] = m;
vm_page_lock_queues();
vm_page_wire(m);
vm_page_wakeup(m);
vm_page_unlock_queues();
}
pmap_qenter(ks, ma, pages);
}
void
pmap_swapout_thread(struct thread *td)
{
TODO;
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = (vm_offset_t)td->td_kstack;
for (i = 0; i < pages; i++) {
m = vm_page_lookup(ksobj, i);
if (m == NULL)
panic("pmap_swapout_thread: kstack already missing?");
vm_page_lock_queues();
vm_page_dirty(m);
vm_page_unwire(m, 0);
vm_page_unlock_queues();
}
pmap_qremove(ks, pages);
}
/*

108
sys/powerpc/powerpc/pmap.c
View File

@ -1544,11 +1544,18 @@ pmap_remove_pages(pmap_t pm, vm_offset_t sva, vm_offset_t eva)
void
pmap_new_thread(struct thread *td, int pages)
{
vm_page_t ma[KSTACK_MAX_PAGES];
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
u_int i;
/* Bounds check */
if (pages <= 1)
pages = KSTACK_PAGES;
else if (pages > KSTACK_MAX_PAGES)
pages = KSTACK_MAX_PAGES;
/*
* Allocate object for the kstack.
*/
@ -1578,46 +1585,127 @@ pmap_new_thread(struct thread *td, int pages)
*/
m = vm_page_grab(ksobj, i,
VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
/*
* Enter the page into the kernel address space.
*/
pmap_kenter(ks + i * PAGE_SIZE, VM_PAGE_TO_PHYS(m));
ma[i] = m;
vm_page_wakeup(m);
vm_page_flag_clear(m, PG_ZERO);
m->valid = VM_PAGE_BITS_ALL;
}
/*
* Enter the page into the kernel address space
*/
pmap_qenter(ks, ma, pages);
}
void
pmap_dispose_thread(struct thread *td)
{
TODO;
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = td->td_kstack;
for (i = 0; i < pages ; i++) {
m = vm_page_lookup(ksobj, i);
if (m == NULL)
panic("pmap_dispose_thread: kstack already missing?");
vm_page_lock_queues();
vm_page_busy(m);
vm_page_unwire(m, 0);
vm_page_free(m);
vm_page_unlock_queues();
}
pmap_qremove(ks, pages);
kmem_free(kernel_map, ks - (KSTACK_GUARD_PAGES * PAGE_SIZE),
(pages + KSTACK_GUARD_PAGES) * PAGE_SIZE);
vm_object_deallocate(ksobj);
}
void
pmap_new_altkstack(struct thread *td, int pages)
{
TODO;
/* shuffle the original stack */
td->td_altkstack_obj = td->td_kstack_obj;
td->td_altkstack = td->td_kstack;
td->td_altkstack_pages = td->td_kstack_pages;
pmap_new_thread(td, pages);
}
void
pmap_dispose_altkstack(struct thread *td)
{
TODO;
pmap_dispose_thread(td);
/* restore the original kstack */
td->td_kstack = td->td_altkstack;
td->td_kstack_obj = td->td_altkstack_obj;
td->td_kstack_pages = td->td_altkstack_pages;
td->td_altkstack = 0;
td->td_altkstack_obj = NULL;
td->td_altkstack_pages = 0;
}
void
pmap_swapin_thread(struct thread *td)
{
TODO;
vm_page_t ma[KSTACK_MAX_PAGES];
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int rv;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = td->td_kstack;
for (i = 0; i < pages; i++) {
m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
if (m->valid != VM_PAGE_BITS_ALL) {
rv = vm_pager_get_pages(ksobj, &m, 1, 0);
if (rv != VM_PAGER_OK)
panic("pmap_swapin_thread: cannot get kstack");
m = vm_page_lookup(ksobj, i);
m->valid = VM_PAGE_BITS_ALL;
}
ma[i] = m;
vm_page_lock_queues();
vm_page_wire(m);
vm_page_wakeup(m);
vm_page_unlock_queues();
}
pmap_qenter(ks, ma, pages);
}
void
pmap_swapout_thread(struct thread *td)
{
TODO;
vm_object_t ksobj;
vm_offset_t ks;
vm_page_t m;
int i;
int pages;
pages = td->td_kstack_pages;
ksobj = td->td_kstack_obj;
ks = (vm_offset_t)td->td_kstack;
for (i = 0; i < pages; i++) {
m = vm_page_lookup(ksobj, i);
if (m == NULL)
panic("pmap_swapout_thread: kstack already missing?");
vm_page_lock_queues();
vm_page_dirty(m);
vm_page_unwire(m, 0);
vm_page_unlock_queues();
}
pmap_qremove(ks, pages);
}
/*