Differential D25129 Diff 72752 sys/powerpc/booke/pmap.c

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sys/powerpc/booke/pmap.c

Show First 20 Lines • Show All 343 Lines • ▼ Show 20 Lines	static void mmu_booke_dumpsys_map(vm_paddr_t pa, size_t,
void **);		void **);
static void mmu_booke_dumpsys_unmap(vm_paddr_t pa, size_t,		static void mmu_booke_dumpsys_unmap(vm_paddr_t pa, size_t,
void *);		void *);
static void mmu_booke_scan_init(void);		static void mmu_booke_scan_init(void);
static vm_offset_t mmu_booke_quick_enter_page(vm_page_t m);		static vm_offset_t mmu_booke_quick_enter_page(vm_page_t m);
static void mmu_booke_quick_remove_page(vm_offset_t addr);		static void mmu_booke_quick_remove_page(vm_offset_t addr);
static int mmu_booke_change_attr(vm_offset_t addr,		static int mmu_booke_change_attr(vm_offset_t addr,
vm_size_t sz, vm_memattr_t mode);		vm_size_t sz, vm_memattr_t mode);
static int mmu_booke_map_user_ptr(pmap_t pm,
volatile const void uaddr, void kaddr, size_t ulen, size_t klen);
static int mmu_booke_decode_kernel_ptr(vm_offset_t addr,		static int mmu_booke_decode_kernel_ptr(vm_offset_t addr,
int is_user, vm_offset_t decoded_addr);		int is_user, vm_offset_t decoded_addr);
static void mmu_booke_page_array_startup(long);		static void mmu_booke_page_array_startup(long);
static boolean_t mmu_booke_page_is_mapped(vm_page_t m);		static boolean_t mmu_booke_page_is_mapped(vm_page_t m);


static struct pmap_funcs mmu_booke_methods = {		static struct pmap_funcs mmu_booke_methods = {
/* pmap dispatcher interface */		/* pmap dispatcher interface */
▲ Show 20 Lines • Show All 43 Lines • ▼ Show 20 Lines	static struct pmap_funcs mmu_booke_methods = {
.mapdev = mmu_booke_mapdev,		.mapdev = mmu_booke_mapdev,
.mapdev_attr = mmu_booke_mapdev_attr,		.mapdev_attr = mmu_booke_mapdev_attr,
.kenter = mmu_booke_kenter,		.kenter = mmu_booke_kenter,
.kenter_attr = mmu_booke_kenter_attr,		.kenter_attr = mmu_booke_kenter_attr,
.kextract = mmu_booke_kextract,		.kextract = mmu_booke_kextract,
.kremove = mmu_booke_kremove,		.kremove = mmu_booke_kremove,
.unmapdev = mmu_booke_unmapdev,		.unmapdev = mmu_booke_unmapdev,
.change_attr = mmu_booke_change_attr,		.change_attr = mmu_booke_change_attr,
.map_user_ptr = mmu_booke_map_user_ptr,
.decode_kernel_ptr = mmu_booke_decode_kernel_ptr,		.decode_kernel_ptr = mmu_booke_decode_kernel_ptr,

/* dumpsys() support */		/* dumpsys() support */
.dumpsys_map_chunk = mmu_booke_dumpsys_map,		.dumpsys_map_chunk = mmu_booke_dumpsys_map,
.dumpsys_unmap_chunk = mmu_booke_dumpsys_unmap,		.dumpsys_unmap_chunk = mmu_booke_dumpsys_unmap,
.dumpsys_pa_init = mmu_booke_scan_init,		.dumpsys_pa_init = mmu_booke_scan_init,
};		};

▲ Show 20 Lines • Show All 779 Lines • ▼ Show 20 Lines	mmu_booke_kremove(vm_offset_t va)
tlb_miss_lock();		tlb_miss_lock();

/* Invalidate entry in TLB0, update PTE. */		/* Invalidate entry in TLB0, update PTE. */
tlb0_flush_entry(va);		tlb0_flush_entry(va);
*pte = 0;		*pte = 0;

tlb_miss_unlock();		tlb_miss_unlock();
mtx_unlock_spin(&tlbivax_mutex);		mtx_unlock_spin(&tlbivax_mutex);
}

/*
* Provide a kernel pointer corresponding to a given userland pointer.
* The returned pointer is valid until the next time this function is
* called in this thread. This is used internally in copyin/copyout.
*/
int
mmu_booke_map_user_ptr(pmap_t pm, volatile const void *uaddr,
void *kaddr, size_t ulen, size_t klen)
{

if (trunc_page((uintptr_t)uaddr + ulen) > VM_MAXUSER_ADDRESS)
return (EFAULT);

kaddr = (void )(uintptr_t)uaddr;
if (klen)
*klen = ulen;

return (0);
}		}

/*		/*
* Figure out where a given kernel pointer (usually in a fault) points		* Figure out where a given kernel pointer (usually in a fault) points
* to from the VM's perspective, potentially remapping into userland's		* to from the VM's perspective, potentially remapping into userland's
* address space.		* address space.
*/		*/
static int		static int
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