Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 536 deletions

diff --git a/ANDROID_3.4.5/arch/um/kernel/tlb.c b/ANDROID_3.4.5/arch/um/kernel/tlb.c
deleted file mode 100644
index 7f3d4d86..00000000
--- a/ANDROID_3.4.5/arch/um/kernel/tlb.c
+++ /dev/null
@@ -1,536 +0,0 @@
-/*
- * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-#include "as-layout.h"
-#include "mem_user.h"
-#include "os.h"
-#include "skas.h"
-
-struct host_vm_change {
-	struct host_vm_op {
-		enum { NONE, MMAP, MUNMAP, MPROTECT } type;
-		union {
-			struct {
-				unsigned long addr;
-				unsigned long len;
-				unsigned int prot;
-				int fd;
-				__u64 offset;
-			} mmap;
-			struct {
-				unsigned long addr;
-				unsigned long len;
-			} munmap;
-			struct {
-				unsigned long addr;
-				unsigned long len;
-				unsigned int prot;
-			} mprotect;
-		} u;
-	} ops[1];
-	int index;
-	struct mm_id *id;
-	void *data;
-	int force;
-};
-
-#define INIT_HVC(mm, force) \
-	((struct host_vm_change) \
-	 { .ops		= { { .type = NONE } },	\
-	   .id		= &mm->context.id, \
-       	   .data	= NULL, \
-	   .index	= 0, \
-	   .force	= force })
-
-static int do_ops(struct host_vm_change *hvc, int end,
-		  int finished)
-{
-	struct host_vm_op *op;
-	int i, ret = 0;
-
-	for (i = 0; i < end && !ret; i++) {
-		op = &hvc->ops[i];
-		switch (op->type) {
-		case MMAP:
-			ret = map(hvc->id, op->u.mmap.addr, op->u.mmap.len,
-				  op->u.mmap.prot, op->u.mmap.fd,
-				  op->u.mmap.offset, finished, &hvc->data);
-			break;
-		case MUNMAP:
-			ret = unmap(hvc->id, op->u.munmap.addr,
-				    op->u.munmap.len, finished, &hvc->data);
-			break;
-		case MPROTECT:
-			ret = protect(hvc->id, op->u.mprotect.addr,
-				      op->u.mprotect.len, op->u.mprotect.prot,
-				      finished, &hvc->data);
-			break;
-		default:
-			printk(KERN_ERR "Unknown op type %d in do_ops\n",
-			       op->type);
-			break;
-		}
-	}
-
-	return ret;
-}
-
-static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len,
-		    unsigned int prot, struct host_vm_change *hvc)
-{
-	__u64 offset;
-	struct host_vm_op *last;
-	int fd, ret = 0;
-
-	fd = phys_mapping(phys, &offset);
-	if (hvc->index != 0) {
-		last = &hvc->ops[hvc->index - 1];
-		if ((last->type == MMAP) &&
-		   (last->u.mmap.addr + last->u.mmap.len == virt) &&
-		   (last->u.mmap.prot == prot) && (last->u.mmap.fd == fd) &&
-		   (last->u.mmap.offset + last->u.mmap.len == offset)) {
-			last->u.mmap.len += len;
-			return 0;
-		}
-	}
-
-	if (hvc->index == ARRAY_SIZE(hvc->ops)) {
-		ret = do_ops(hvc, ARRAY_SIZE(hvc->ops), 0);
-		hvc->index = 0;
-	}
-
-	hvc->ops[hvc->index++] = ((struct host_vm_op)
-				  { .type	= MMAP,
-				    .u = { .mmap = { .addr	= virt,
-						     .len	= len,
-						     .prot	= prot,
-						     .fd	= fd,
-						     .offset	= offset }
-			   } });
-	return ret;
-}
-
-static int add_munmap(unsigned long addr, unsigned long len,
-		      struct host_vm_change *hvc)
-{
-	struct host_vm_op *last;
-	int ret = 0;
-
-	if (hvc->index != 0) {
-		last = &hvc->ops[hvc->index - 1];
-		if ((last->type == MUNMAP) &&
-		   (last->u.munmap.addr + last->u.mmap.len == addr)) {
-			last->u.munmap.len += len;
-			return 0;
-		}
-	}
-
-	if (hvc->index == ARRAY_SIZE(hvc->ops)) {
-		ret = do_ops(hvc, ARRAY_SIZE(hvc->ops), 0);
-		hvc->index = 0;
-	}
-
-	hvc->ops[hvc->index++] = ((struct host_vm_op)
-				  { .type	= MUNMAP,
-			     	    .u = { .munmap = { .addr	= addr,
-						       .len	= len } } });
-	return ret;
-}
-
-static int add_mprotect(unsigned long addr, unsigned long len,
-			unsigned int prot, struct host_vm_change *hvc)
-{
-	struct host_vm_op *last;
-	int ret = 0;
-
-	if (hvc->index != 0) {
-		last = &hvc->ops[hvc->index - 1];
-		if ((last->type == MPROTECT) &&
-		   (last->u.mprotect.addr + last->u.mprotect.len == addr) &&
-		   (last->u.mprotect.prot == prot)) {
-			last->u.mprotect.len += len;
-			return 0;
-		}
-	}
-
-	if (hvc->index == ARRAY_SIZE(hvc->ops)) {
-		ret = do_ops(hvc, ARRAY_SIZE(hvc->ops), 0);
-		hvc->index = 0;
-	}
-
-	hvc->ops[hvc->index++] = ((struct host_vm_op)
-				  { .type	= MPROTECT,
-			     	    .u = { .mprotect = { .addr	= addr,
-							 .len	= len,
-							 .prot	= prot } } });
-	return ret;
-}
-
-#define ADD_ROUND(n, inc) (((n) + (inc)) & ~((inc) - 1))
-
-static inline int update_pte_range(pmd_t *pmd, unsigned long addr,
-				   unsigned long end,
-				   struct host_vm_change *hvc)
-{
-	pte_t *pte;
-	int r, w, x, prot, ret = 0;
-
-	pte = pte_offset_kernel(pmd, addr);
-	do {
-		if ((addr >= STUB_START) && (addr < STUB_END))
-			continue;
-
-		r = pte_read(*pte);
-		w = pte_write(*pte);
-		x = pte_exec(*pte);
-		if (!pte_young(*pte)) {
-			r = 0;
-			w = 0;
-		} else if (!pte_dirty(*pte))
-			w = 0;
-
-		prot = ((r ? UM_PROT_READ : 0) | (w ? UM_PROT_WRITE : 0) |
-			(x ? UM_PROT_EXEC : 0));
-		if (hvc->force || pte_newpage(*pte)) {
-			if (pte_present(*pte))
-				ret = add_mmap(addr, pte_val(*pte) & PAGE_MASK,
-					       PAGE_SIZE, prot, hvc);
-			else
-				ret = add_munmap(addr, PAGE_SIZE, hvc);
-		} else if (pte_newprot(*pte))
-			ret = add_mprotect(addr, PAGE_SIZE, prot, hvc);
-		*pte = pte_mkuptodate(*pte);
-	} while (pte++, addr += PAGE_SIZE, ((addr < end) && !ret));
-	return ret;
-}
-
-static inline int update_pmd_range(pud_t *pud, unsigned long addr,
-				   unsigned long end,
-				   struct host_vm_change *hvc)
-{
-	pmd_t *pmd;
-	unsigned long next;
-	int ret = 0;
-
-	pmd = pmd_offset(pud, addr);
-	do {
-		next = pmd_addr_end(addr, end);
-		if (!pmd_present(*pmd)) {
-			if (hvc->force || pmd_newpage(*pmd)) {
-				ret = add_munmap(addr, next - addr, hvc);
-				pmd_mkuptodate(*pmd);
-			}
-		}
-		else ret = update_pte_range(pmd, addr, next, hvc);
-	} while (pmd++, addr = next, ((addr < end) && !ret));
-	return ret;
-}
-
-static inline int update_pud_range(pgd_t *pgd, unsigned long addr,
-				   unsigned long end,
-				   struct host_vm_change *hvc)
-{
-	pud_t *pud;
-	unsigned long next;
-	int ret = 0;
-
-	pud = pud_offset(pgd, addr);
-	do {
-		next = pud_addr_end(addr, end);
-		if (!pud_present(*pud)) {
-			if (hvc->force || pud_newpage(*pud)) {
-				ret = add_munmap(addr, next - addr, hvc);
-				pud_mkuptodate(*pud);
-			}
-		}
-		else ret = update_pmd_range(pud, addr, next, hvc);
-	} while (pud++, addr = next, ((addr < end) && !ret));
-	return ret;
-}
-
-void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
-		      unsigned long end_addr, int force)
-{
-	pgd_t *pgd;
-	struct host_vm_change hvc;
-	unsigned long addr = start_addr, next;
-	int ret = 0;
-
-	hvc = INIT_HVC(mm, force);
-	pgd = pgd_offset(mm, addr);
-	do {
-		next = pgd_addr_end(addr, end_addr);
-		if (!pgd_present(*pgd)) {
-			if (force || pgd_newpage(*pgd)) {
-				ret = add_munmap(addr, next - addr, &hvc);
-				pgd_mkuptodate(*pgd);
-			}
-		}
-		else ret = update_pud_range(pgd, addr, next, &hvc);
-	} while (pgd++, addr = next, ((addr < end_addr) && !ret));
-
-	if (!ret)
-		ret = do_ops(&hvc, hvc.index, 1);
-
-	/* This is not an else because ret is modified above */
-	if (ret) {
-		printk(KERN_ERR "fix_range_common: failed, killing current "
-		       "process\n");
-		force_sig(SIGKILL, current);
-	}
-}
-
-static int flush_tlb_kernel_range_common(unsigned long start, unsigned long end)
-{
-	struct mm_struct *mm;
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-	unsigned long addr, last;
-	int updated = 0, err;
-
-	mm = &init_mm;
-	for (addr = start; addr < end;) {
-		pgd = pgd_offset(mm, addr);
-		if (!pgd_present(*pgd)) {
-			last = ADD_ROUND(addr, PGDIR_SIZE);
-			if (last > end)
-				last = end;
-			if (pgd_newpage(*pgd)) {
-				updated = 1;
-				err = os_unmap_memory((void *) addr,
-						      last - addr);
-				if (err < 0)
-					panic("munmap failed, errno = %d\n",
-					      -err);
-			}
-			addr = last;
-			continue;
-		}
-
-		pud = pud_offset(pgd, addr);
-		if (!pud_present(*pud)) {
-			last = ADD_ROUND(addr, PUD_SIZE);
-			if (last > end)
-				last = end;
-			if (pud_newpage(*pud)) {
-				updated = 1;
-				err = os_unmap_memory((void *) addr,
-						      last - addr);
-				if (err < 0)
-					panic("munmap failed, errno = %d\n",
-					      -err);
-			}
-			addr = last;
-			continue;
-		}
-
-		pmd = pmd_offset(pud, addr);
-		if (!pmd_present(*pmd)) {
-			last = ADD_ROUND(addr, PMD_SIZE);
-			if (last > end)
-				last = end;
-			if (pmd_newpage(*pmd)) {
-				updated = 1;
-				err = os_unmap_memory((void *) addr,
-						      last - addr);
-				if (err < 0)
-					panic("munmap failed, errno = %d\n",
-					      -err);
-			}
-			addr = last;
-			continue;
-		}
-
-		pte = pte_offset_kernel(pmd, addr);
-		if (!pte_present(*pte) || pte_newpage(*pte)) {
-			updated = 1;
-			err = os_unmap_memory((void *) addr,
-					      PAGE_SIZE);
-			if (err < 0)
-				panic("munmap failed, errno = %d\n",
-				      -err);
-			if (pte_present(*pte))
-				map_memory(addr,
-					   pte_val(*pte) & PAGE_MASK,
-					   PAGE_SIZE, 1, 1, 1);
-		}
-		else if (pte_newprot(*pte)) {
-			updated = 1;
-			os_protect_memory((void *) addr, PAGE_SIZE, 1, 1, 1);
-		}
-		addr += PAGE_SIZE;
-	}
-	return updated;
-}
-
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long address)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *pte;
-	struct mm_struct *mm = vma->vm_mm;
-	void *flush = NULL;
-	int r, w, x, prot, err = 0;
-	struct mm_id *mm_id;
-
-	address &= PAGE_MASK;
-	pgd = pgd_offset(mm, address);
-	if (!pgd_present(*pgd))
-		goto kill;
-
-	pud = pud_offset(pgd, address);
-	if (!pud_present(*pud))
-		goto kill;
-
-	pmd = pmd_offset(pud, address);
-	if (!pmd_present(*pmd))
-		goto kill;
-
-	pte = pte_offset_kernel(pmd, address);
-
-	r = pte_read(*pte);
-	w = pte_write(*pte);
-	x = pte_exec(*pte);
-	if (!pte_young(*pte)) {
-		r = 0;
-		w = 0;
-	} else if (!pte_dirty(*pte)) {
-		w = 0;
-	}
-
-	mm_id = &mm->context.id;
-	prot = ((r ? UM_PROT_READ : 0) | (w ? UM_PROT_WRITE : 0) |
-		(x ? UM_PROT_EXEC : 0));
-	if (pte_newpage(*pte)) {
-		if (pte_present(*pte)) {
-			unsigned long long offset;
-			int fd;
-
-			fd = phys_mapping(pte_val(*pte) & PAGE_MASK, &offset);
-			err = map(mm_id, address, PAGE_SIZE, prot, fd, offset,
-				  1, &flush);
-		}
-		else err = unmap(mm_id, address, PAGE_SIZE, 1, &flush);
-	}
-	else if (pte_newprot(*pte))
-		err = protect(mm_id, address, PAGE_SIZE, prot, 1, &flush);
-
-	if (err)
-		goto kill;
-
-	*pte = pte_mkuptodate(*pte);
-
-	return;
-
-kill:
-	printk(KERN_ERR "Failed to flush page for address 0x%lx\n", address);
-	force_sig(SIGKILL, current);
-}
-
-pgd_t *pgd_offset_proc(struct mm_struct *mm, unsigned long address)
-{
-	return pgd_offset(mm, address);
-}
-
-pud_t *pud_offset_proc(pgd_t *pgd, unsigned long address)
-{
-	return pud_offset(pgd, address);
-}
-
-pmd_t *pmd_offset_proc(pud_t *pud, unsigned long address)
-{
-	return pmd_offset(pud, address);
-}
-
-pte_t *pte_offset_proc(pmd_t *pmd, unsigned long address)
-{
-	return pte_offset_kernel(pmd, address);
-}
-
-pte_t *addr_pte(struct task_struct *task, unsigned long addr)
-{
-	pgd_t *pgd = pgd_offset(task->mm, addr);
-	pud_t *pud = pud_offset(pgd, addr);
-	pmd_t *pmd = pmd_offset(pud, addr);
-
-	return pte_offset_map(pmd, addr);
-}
-
-void flush_tlb_all(void)
-{
-	flush_tlb_mm(current->mm);
-}
-
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-	flush_tlb_kernel_range_common(start, end);
-}
-
-void flush_tlb_kernel_vm(void)
-{
-	flush_tlb_kernel_range_common(start_vm, end_vm);
-}
-
-void __flush_tlb_one(unsigned long addr)
-{
-	flush_tlb_kernel_range_common(addr, addr + PAGE_SIZE);
-}
-
-static void fix_range(struct mm_struct *mm, unsigned long start_addr,
-		      unsigned long end_addr, int force)
-{
-	fix_range_common(mm, start_addr, end_addr, force);
-}
-
-void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-		     unsigned long end)
-{
-	if (vma->vm_mm == NULL)
-		flush_tlb_kernel_range_common(start, end);
-	else fix_range(vma->vm_mm, start, end, 0);
-}
-EXPORT_SYMBOL(flush_tlb_range);
-
-void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
-			unsigned long end)
-{
-	/*
-	 * Don't bother flushing if this address space is about to be
-	 * destroyed.
-	 */
-	if (atomic_read(&mm->mm_users) == 0)
-		return;
-
-	fix_range(mm, start, end, 0);
-}
-
-void flush_tlb_mm(struct mm_struct *mm)
-{
-	struct vm_area_struct *vma = mm->mmap;
-
-	while (vma != NULL) {
-		fix_range(mm, vma->vm_start, vma->vm_end, 0);
-		vma = vma->vm_next;
-	}
-}
-
-void force_flush_all(void)
-{
-	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma = mm->mmap;
-
-	while (vma != NULL) {
-		fix_range(mm, vma->vm_start, vma->vm_end, 1);
-		vma = vma->vm_next;
-	}
-}