cxgb4: use pgprot_writecombine() on powerpc
Commit fe3cc0d99de6a9bf99b6c279a8afb5833888c1f7 ("powerpc: Add
pgprot_writecombine") in benh's tree exposes the pgprot_writecombine()
API to drivers on powerpc. cxgb4 has an open-coded version of the same,
so use the common API now that it's available.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Anton Blanchard <anton@samba.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/drivers/infiniband/hw/cxgb4/t4.h b/drivers/infiniband/hw/cxgb4/t4.h
index 24af12f..c0221ee 100644
--- a/drivers/infiniband/hw/cxgb4/t4.h
+++ b/drivers/infiniband/hw/cxgb4/t4.h
@@ -269,11 +269,8 @@
static inline pgprot_t t4_pgprot_wc(pgprot_t prot)
{
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
return pgprot_writecombine(prot);
-#elif defined(CONFIG_PPC64)
- return __pgprot((pgprot_val(prot) | _PAGE_NO_CACHE) &
- ~(pgprot_t)_PAGE_GUARDED);
#else
return pgprot_noncached(prot);
#endif