X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fm68k%2Fmm%2Fmemory.c;h=d6d582a5abb001b49114a05a71e6204a37a9f39e;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=4af152355322367787ead67b34a5441f9fc84e8d;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index 4af152355..d6d582a5a 100644
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -54,7 +54,7 @@ void __init init_pointer_table(unsigned long ptable)
 
 	/* unreserve the page so it's possible to free that page */
 	PD_PAGE(dp)->flags &= ~(1 << PG_reserved);
-	atomic_set(&PD_PAGE(dp)->count, 1);
+	init_page_count(PD_PAGE(dp));
 
 	return;
 }
@@ -77,7 +77,7 @@ pmd_t *get_pointer_table (void)
 		ptable_desc *new;
 
 		if (!(page = (void *)get_zeroed_page(GFP_KERNEL)))
-			return 0;
+			return NULL;
 
 		flush_tlb_kernel_page(page);
 		nocache_page(page);
@@ -129,7 +129,7 @@ int free_pointer_table (pmd_t *ptable)
 	return 0;
 }
 
-#if DEBUG_INVALID_PTOV
+#ifdef DEBUG_INVALID_PTOV
 int mm_inv_cnt = 5;
 #endif
 
@@ -179,7 +179,7 @@ unsigned long mm_ptov (unsigned long paddr)
 		voff += m68k_memory[i].size;
 	} while (++i < m68k_num_memory);
 
-#if DEBUG_INVALID_PTOV
+#ifdef DEBUG_INVALID_PTOV
 	if (mm_inv_cnt > 0) {
 		mm_inv_cnt--;
 		printk("Invalid use of phys_to_virt(0x%lx) at 0x%p!\n",
@@ -298,7 +298,7 @@ void cache_clear (unsigned long paddr, int len)
 		      : "d0");
 #ifdef CONFIG_M68K_L2_CACHE
     if(mach_l2_flush)
-    	mach_l2_flush(0);
+	mach_l2_flush(0);
 #endif
 }
 
@@ -350,114 +350,10 @@ void cache_push (unsigned long paddr, int len)
 		      : "d0");
 #ifdef CONFIG_M68K_L2_CACHE
     if(mach_l2_flush)
-    	mach_l2_flush(1);
+	mach_l2_flush(1);
 #endif
 }
 
-static unsigned long virt_to_phys_slow(unsigned long vaddr)
-{
-	if (CPU_IS_060) {
-		mm_segment_t fs = get_fs();
-		unsigned long paddr;
-
-		set_fs(get_ds());
-
-		/* The PLPAR instruction causes an access error if the translation
-		 * is not possible. To catch this we use the same exception mechanism
-		 * as for user space accesses in <asm/uaccess.h>. */
-		asm volatile (".chip 68060\n"
-			      "1: plpar (%0)\n"
-			      ".chip 68k\n"
-			      "2:\n"
-			      ".section .fixup,\"ax\"\n"
-			      "   .even\n"
-			      "3: sub.l %0,%0\n"
-			      "   jra 2b\n"
-			      ".previous\n"
-			      ".section __ex_table,\"a\"\n"
-			      "   .align 4\n"
-			      "   .long 1b,3b\n"
-			      ".previous"
-			      : "=a" (paddr)
-			      : "0" (vaddr));
-		set_fs(fs);
-		return paddr;
-	} else if (CPU_IS_040) {
-		mm_segment_t fs = get_fs();
-		unsigned long mmusr;
-
-		set_fs(get_ds());
-		
-		asm volatile (".chip 68040\n\t"
-			      "ptestr (%1)\n\t"
-			      "movec %%mmusr, %0\n\t"
-			      ".chip 68k"
-			      : "=r" (mmusr)
-			      : "a" (vaddr));
-		set_fs(fs);
-
-		if (mmusr & MMU_R_040)
-			return (mmusr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
-	} else {
-		unsigned short mmusr;
-		unsigned long *descaddr;
-
-		asm volatile ("ptestr #5,%2@,#7,%0\n\t"
-			      "pmove %%psr,%1@"
-			      : "=a&" (descaddr)
-			      : "a" (&mmusr), "a" (vaddr));
-		if (mmusr & (MMU_I|MMU_B|MMU_L))
-			return 0;
-		descaddr = phys_to_virt((unsigned long)descaddr);
-		switch (mmusr & MMU_NUM) {
-		case 1:
-			return (*descaddr & 0xfe000000) | (vaddr & 0x01ffffff);
-		case 2:
-			return (*descaddr & 0xfffc0000) | (vaddr & 0x0003ffff);
-		case 3:
-			return (*descaddr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
-		}
-	}
-	return 0;
-}
-
-/* Push n pages at kernel virtual address and clear the icache */
-/* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
-void flush_icache_range(unsigned long address, unsigned long endaddr)
-{
-	if (CPU_IS_040_OR_060) {
-		address &= PAGE_MASK;
-
-		if (address >= PAGE_OFFSET && address < (unsigned long)high_memory) {
-			do {
-				asm volatile ("nop\n\t"
-					      ".chip 68040\n\t"
-					      "cpushp %%bc,(%0)\n\t"
-					      ".chip 68k"
-					      : : "a" (virt_to_phys((void *)address)));
-				address += PAGE_SIZE;
-			} while (address < endaddr);
-		} else {
-			do {
-				asm volatile ("nop\n\t"
-					      ".chip 68040\n\t"
-					      "cpushp %%bc,(%0)\n\t"
-					      ".chip 68k"
-					      : : "a" (virt_to_phys_slow(address)));
-				address += PAGE_SIZE;
-			} while (address < endaddr);
-		}
-	} else {
-		unsigned long tmp;
-		asm volatile ("movec %%cacr,%0\n\t"
-			      "orw %1,%0\n\t"
-			      "movec %0,%%cacr"
-			      : "=&d" (tmp)
-			      : "di" (FLUSH_I));
-	}
-}
-
-
 #ifndef CONFIG_SINGLE_MEMORY_CHUNK
 int mm_end_of_chunk (unsigned long addr, int len)
 {