sh: More tidying for large base pages.

There were a few more things that needed fixing up, namely THREAD_SIZE
and the TLB miss handler where certain PTRS_PER_PGD == PTRS_PER_PTE
assumptions were being made.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 14 insertions, 6 deletions

diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 036ca2843866..eba14184baf3 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -47,13 +47,13 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 #define PGDIR_MASK      (~(PGDIR_SIZE-1))
 
 /* Entries per level */
-#define PTRS_PER_PTE    (PAGE_SIZE / 4)
+#define PTRS_PER_PTE    (PAGE_SIZE / (1 << PTE_MAGNITUDE))
 #define PTRS_PER_PGD    (PAGE_SIZE / 4)
 
 #define USER_PTRS_PER_PGD       (TASK_SIZE/PGDIR_SIZE)
 #define FIRST_USER_ADDRESS      0
 
-#define PTE_PHYS_MASK   0x1ffff000
+#define PTE_PHYS_MASK           (0x20000000 - PAGE_SIZE)
 
 /*
  * First 1MB map is used by fixed purpose.
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index 879f741105db..279e70a77c75 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -32,12 +32,20 @@ struct thread_info {
 
 #define PREEMPT_ACTIVE          0x10000000
 
-#ifdef CONFIG_4KSTACKS
-#define THREAD_SIZE             (PAGE_SIZE)
+#if defined(CONFIG_4KSTACKS)
+#define THREAD_SIZE_ORDER       (0)
+#elif defined(CONFIG_PAGE_SIZE_4KB)
+#define THREAD_SIZE_ORDER       (1)
+#elif defined(CONFIG_PAGE_SIZE_8KB)
+#define THREAD_SIZE_ORDER       (1)
+#elif defined(CONFIG_PAGE_SIZE_64KB)
+#define THREAD_SIZE_ORDER       (0)
 #else
-#define THREAD_SIZE             (PAGE_SIZE * 2)
+#error "Unknown thread size"
 #endif
-#define STACK_WARN              (THREAD_SIZE / 8)
+
+#define THREAD_SIZE     (PAGE_SIZE << THREAD_SIZE_ORDER)
+#define STACK_WARN      (THREAD_SIZE >> 3)
 
 /*
  * macros/functions for gaining access to the thread information structure