Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block

[powerpc.git] / arch / sparc64 / kernel / traps.c

diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 1aa1599..8d44ae5 100644 (file)
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -757,26 +757,12 @@ void __init cheetah_ecache_flush_init(void)
        ecache_flush_size = (2 * largest_size);
        ecache_flush_linesize = smallest_linesize;
 
-       /* Discover a physically contiguous chunk of physical
-        * memory in 'sp_banks' of size ecache_flush_size calculated
-        * above.  Store the physical base of this area at
-        * ecache_flush_physbase.
-        */
-       for (node = 0; ; node++) {
-               if (sp_banks[node].num_bytes == 0)
-                       break;
-               if (sp_banks[node].num_bytes >= ecache_flush_size) {
-                       ecache_flush_physbase = sp_banks[node].base_addr;
-                       break;
-               }
-       }
+       ecache_flush_physbase = find_ecache_flush_span(ecache_flush_size);
 
-       /* Note: Zero would be a valid value of ecache_flush_physbase so
-        * don't use that as the success test. :-)
-        */
-       if (sp_banks[node].num_bytes == 0) {
+       if (ecache_flush_physbase == ~0UL) {
                prom_printf("cheetah_ecache_flush_init: Cannot find %d byte "
-                           "contiguous physical memory.\n", ecache_flush_size);
+                           "contiguous physical memory.\n",
+                           ecache_flush_size);
                prom_halt();
        }
 
@@ -1345,16 +1331,12 @@ static int cheetah_fix_ce(unsigned long physaddr)
 /* Return non-zero if PADDR is a valid physical memory address. */
 static int cheetah_check_main_memory(unsigned long paddr)
 {
-       int i;
+       unsigned long vaddr = PAGE_OFFSET + paddr;
 
-       for (i = 0; ; i++) {
-               if (sp_banks[i].num_bytes == 0)
-                       break;
-               if (paddr >= sp_banks[i].base_addr &&
-                   paddr < (sp_banks[i].base_addr + sp_banks[i].num_bytes))
-                       return 1;
-       }
-       return 0;
+       if (vaddr > (unsigned long) high_memory)
+               return 0;
+
+       return kern_addr_valid(vaddr);
 }
 
 void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar)
@@ -1826,7 +1808,7 @@ static void user_instruction_dump (unsigned int __user *pc)
 void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 {
        unsigned long pc, fp, thread_base, ksp;
-       struct thread_info *tp = tsk->thread_info;
+       void *tp = task_stack_page(tsk);
        struct reg_window *rw;
        int count = 0;
 
@@ -1880,7 +1862,7 @@ static inline int is_kernel_stack(struct task_struct *task,
                        return 0;
        }
 
-       thread_base = (unsigned long) task->thread_info;
+       thread_base = (unsigned long) task_stack_page(task);
        thread_end = thread_base + sizeof(union thread_union);
        if (rw_addr >= thread_base &&
            rw_addr < thread_end &&