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authorMichael S. Tsirkin <mst@mellanox.co.il>2005-04-16 15:26:27 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:26:27 -0700
commitef416a33acbd2d68a58ea1ffdc13c674e53bc78f (patch)
tree4029b8cd92b9e8a24a313f07230aa5bda51a746c /drivers
parent9095e208d84c349193fa19245cd5a8bc1a9774b8 (diff)
downloadop-kernel-dev-ef416a33acbd2d68a58ea1ffdc13c674e53bc78f.zip
op-kernel-dev-ef416a33acbd2d68a58ea1ffdc13c674e53bc78f.tar.gz
[PATCH] IB/mthca: add mthca_write64_raw() for writing to MTT table directly
Add mthca_write64_raw() function, which will be used to write FMR entries that are in ioremapped PCI memory. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_doorbell.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_doorbell.h b/drivers/infiniband/hw/mthca/mthca_doorbell.h
index 78b183c..821039a 100644
--- a/drivers/infiniband/hw/mthca/mthca_doorbell.h
+++ b/drivers/infiniband/hw/mthca/mthca_doorbell.h
@@ -51,6 +51,11 @@
#define MTHCA_INIT_DOORBELL_LOCK(ptr) do { } while (0)
#define MTHCA_GET_DOORBELL_LOCK(ptr) (NULL)
+static inline void mthca_write64_raw(__be64 val, void __iomem *dest)
+{
+ __raw_writeq((__force u64) val, dest);
+}
+
static inline void mthca_write64(u32 val[2], void __iomem *dest,
spinlock_t *doorbell_lock)
{
@@ -74,6 +79,12 @@ static inline void mthca_write_db_rec(u32 val[2], u32 *db)
#define MTHCA_INIT_DOORBELL_LOCK(ptr) spin_lock_init(ptr)
#define MTHCA_GET_DOORBELL_LOCK(ptr) (ptr)
+static inline void mthca_write64_raw(__be64 val, void __iomem *dest)
+{
+ __raw_writel(((__force u32 *) &val)[0], dest);
+ __raw_writel(((__force u32 *) &val)[1], dest + 4);
+}
+
static inline void mthca_write64(u32 val[2], void __iomem *dest,
spinlock_t *doorbell_lock)
{
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