Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle...

[pandora-kernel.git] / arch / tile / lib / memcpy_tile64.c

diff --git a/arch/tile/lib/memcpy_tile64.c b/arch/tile/lib/memcpy_tile64.c
index dfedea7..f7d4a6a 100644 (file)
--- a/arch/tile/lib/memcpy_tile64.c
+++ b/arch/tile/lib/memcpy_tile64.c
@@ -54,7 +54,7 @@ typedef unsigned long (*memcpy_t)(void *, const void *, unsigned long);
  * we must run with interrupts disabled to avoid the risk of some
  * other code seeing the incoherent data in our cache.  (Recall that
  * our cache is indexed by PA, so even if the other code doesn't use
- * our KM_MEMCPY virtual addresses, they'll still hit in cache using
+ * our kmap_atomic virtual addresses, they'll still hit in cache using
  * the normal VAs that aren't supposed to hit in cache.)
  */
 static void memcpy_multicache(void *dest, const void *source,
@@ -64,6 +64,7 @@ static void memcpy_multicache(void *dest, const void *source,
        unsigned long flags, newsrc, newdst;
        pmd_t *pmdp;
        pte_t *ptep;
+       int type0, type1;
        int cpu = get_cpu();
 
        /*
@@ -77,7 +78,8 @@ static void memcpy_multicache(void *dest, const void *source,
        sim_allow_multiple_caching(1);
 
        /* Set up the new dest mapping */
-       idx = FIX_KMAP_BEGIN + (KM_TYPE_NR * cpu) + KM_MEMCPY0;
+       type0 = kmap_atomic_idx_push();
+       idx = FIX_KMAP_BEGIN + (KM_TYPE_NR * cpu) + type0;
        newdst = __fix_to_virt(idx) + ((unsigned long)dest & (PAGE_SIZE-1));
        pmdp = pmd_offset(pud_offset(pgd_offset_k(newdst), newdst), newdst);
        ptep = pte_offset_kernel(pmdp, newdst);
@@ -87,7 +89,8 @@ static void memcpy_multicache(void *dest, const void *source,
        }
 
        /* Set up the new source mapping */
-       idx += (KM_MEMCPY0 - KM_MEMCPY1);
+       type1 = kmap_atomic_idx_push();
+       idx += (type0 - type1);
        src_pte = hv_pte_set_nc(src_pte);
        src_pte = hv_pte_clear_writable(src_pte);  /* be paranoid */
        newsrc = __fix_to_virt(idx) + ((unsigned long)source & (PAGE_SIZE-1));
@@ -119,6 +122,8 @@ static void memcpy_multicache(void *dest, const void *source,
         * We're done: notify the simulator that all is back to normal,
         * and re-enable interrupts and pre-emption.
         */
+       kmap_atomic_idx_pop();
+       kmap_atomic_idx_pop();
        sim_allow_multiple_caching(0);
        local_irq_restore(flags);
        put_cpu();