#include "linux/vmalloc.h"
#include "linux/bootmem.h"
#include "linux/module.h"
+#include "linux/pfn.h"
#include "asm/types.h"
#include "asm/pgtable.h"
#include "kern_util.h"
/* Changed during early boot */
unsigned long high_physmem;
-extern unsigned long physmem_size;
-
-void *to_virt(unsigned long phys)
-{
- return((void *) uml_physmem + phys);
-}
-
-unsigned long to_phys(void *virt)
-{
- return(((unsigned long) virt) - uml_physmem);
-}
+extern unsigned long long physmem_size;
int init_maps(unsigned long physmem, unsigned long iomem, unsigned long highmem)
{
highmem_len = highmem_pages * sizeof(struct page);
total_pages = phys_pages + iomem_pages + highmem_pages;
- total_len = phys_len + iomem_pages + highmem_len;
+ total_len = phys_len + iomem_len + highmem_len;
if(kmalloc_ok){
map = kmalloc(total_len, GFP_KERNEL);
for(i = 0; i < total_pages; i++){
p = &map[i];
- set_page_count(p, 0);
+ memset(p, 0, sizeof(struct page));
SetPageReserved(p);
INIT_LIST_HEAD(&p->lru);
}
return(0);
}
-struct page *phys_to_page(const unsigned long phys)
-{
- return(&mem_map[phys >> PAGE_SHIFT]);
-}
-
-struct page *__virt_to_page(const unsigned long virt)
-{
- return(&mem_map[__pa(virt) >> PAGE_SHIFT]);
-}
-
-phys_t page_to_phys(struct page *page)
-{
- return((page - mem_map) << PAGE_SHIFT);
-}
-
-pte_t mk_pte(struct page *page, pgprot_t pgprot)
-{
- pte_t pte;
-
- pte_set_val(pte, page_to_phys(page), pgprot);
- if(pte_present(pte))
- pte_mknewprot(pte_mknewpage(pte));
- return(pte);
-}
-
/* Changed during early boot */
static unsigned long kmem_top = 0;
}
}
-#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
+extern int __syscall_stub_start, __binary_start;
void setup_physmem(unsigned long start, unsigned long reserve_end,
- unsigned long len, unsigned long highmem)
+ unsigned long len, unsigned long long highmem)
{
unsigned long reserve = reserve_end - start;
int pfn = PFN_UP(__pa(reserve_end));
exit(1);
}
+ /* Special kludge - This page will be mapped in to userspace processes
+ * from physmem_fd, so it needs to be written out there.
+ */
+ os_seek_file(physmem_fd, __pa(&__syscall_stub_start));
+ os_write_file(physmem_fd, &__syscall_stub_start, PAGE_SIZE);
+
bootmap_size = init_bootmem(pfn, pfn + delta);
free_bootmem(__pa(reserve_end) + bootmap_size,
len - bootmap_size - reserve);
*len_out = region->size;
return(region->virt);
}
+
+ region = region->next;
}
return(0);