summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/tile/include/asm/cacheflush.h18
-rw-r--r--drivers/net/tile/tilepro.c8
2 files changed, 15 insertions, 11 deletions
diff --git a/arch/tile/include/asm/cacheflush.h b/arch/tile/include/asm/cacheflush.h
index 12fb0fb330ee..e925f4bb498f 100644
--- a/arch/tile/include/asm/cacheflush.h
+++ b/arch/tile/include/asm/cacheflush.h
@@ -116,22 +116,28 @@ static inline void __finv_buffer(void *buffer, size_t size)
}
-/* Invalidate a VA range, then memory fence. */
+/* Invalidate a VA range and wait for it to be complete. */
static inline void inv_buffer(void *buffer, size_t size)
{
__inv_buffer(buffer, size);
- mb_incoherent();
+ mb();
}
-/* Flush a VA range, then memory fence. */
-static inline void flush_buffer(void *buffer, size_t size)
+/*
+ * Flush a locally-homecached VA range and wait for the evicted
+ * cachelines to hit memory.
+ */
+static inline void flush_buffer_local(void *buffer, size_t size)
{
__flush_buffer(buffer, size);
mb_incoherent();
}
-/* Flush & invalidate a VA range, then memory fence. */
-static inline void finv_buffer(void *buffer, size_t size)
+/*
+ * Flush and invalidate a locally-homecached VA range and wait for the
+ * evicted cachelines to hit memory.
+ */
+static inline void finv_buffer_local(void *buffer, size_t size)
{
__finv_buffer(buffer, size);
mb_incoherent();
diff --git a/drivers/net/tile/tilepro.c b/drivers/net/tile/tilepro.c
index 0825db6d883f..314f7e79c640 100644
--- a/drivers/net/tile/tilepro.c
+++ b/drivers/net/tile/tilepro.c
@@ -1658,11 +1658,9 @@ static int tile_net_stop(struct net_device *dev)
while (tile_net_lepp_free_comps(dev, true))
/* loop */;
- /* Wipe the EPP queue. */
+ /* Wipe the EPP queue, and wait till the stores hit the EPP. */
memset(priv->eq, 0, sizeof(lepp_queue_t));
-
- /* Evict the EPP queue. */
- finv_buffer(priv->eq, EQ_SIZE);
+ mb();
return 0;
}
@@ -2398,7 +2396,7 @@ static void tile_net_cleanup(void)
struct net_device *dev = tile_net_devs[i];
struct tile_net_priv *priv = netdev_priv(dev);
unregister_netdev(dev);
- finv_buffer(priv->eq, EQ_SIZE);
+ finv_buffer_remote(priv->eq, EQ_SIZE, 0);
__free_pages(priv->eq_pages, EQ_ORDER);
free_netdev(dev);
}