sh: Initial vsyscall page support.

This implements initial support for the vsyscall page on SH.
At the moment we leave it configurable due to having nommu
to support from the same code base. We hook it up for the
signal trampoline return at present, with more to be added
later, once uClibc catches up.

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

1 files changed, 4 insertions, 4 deletions

diff --git a/include/asm-sh/mmu_context.h b/include/asm-sh/mmu_context.h
index 87678ba8d6b6..c7088efe579a 100644
--- a/include/asm-sh/mmu_context.h
+++ b/include/asm-sh/mmu_context.h
@@ -49,7 +49,7 @@ get_mmu_context(struct mm_struct *mm)
         unsigned long mc = mmu_context_cache;
 
         /* Check if we have old version of context. */
-        if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0)
+        if (((mm->context.id ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0)
                 /* It's up to date, do nothing */
                 return;
 
@@ -68,7 +68,7 @@ get_mmu_context(struct mm_struct *mm)
                 if (!mc)
                         mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION;
         }
-        mm->context = mc;
+        mm->context.id = mc;
 }
 
 /*
@@ -78,7 +78,7 @@ get_mmu_context(struct mm_struct *mm)
 static __inline__ int init_new_context(struct task_struct *tsk,
                                        struct mm_struct *mm)
 {
-        mm->context = NO_CONTEXT;
+        mm->context.id = NO_CONTEXT;
 
         return 0;
 }
@@ -123,7 +123,7 @@ static __inline__ unsigned long get_asid(void)
 static __inline__ void activate_context(struct mm_struct *mm)
 {
         get_mmu_context(mm);
-        set_asid(mm->context & MMU_CONTEXT_ASID_MASK);
+        set_asid(mm->context.id & MMU_CONTEXT_ASID_MASK);
 }
 
 /* MMU_TTB can be used for optimizing the fault handling.