#include "mlx4_ib.h"
#include "user.h"
+#include "wc.h"
#define DRV_NAME MLX4_IB_DRV_NAME
#define DRV_VERSION "2.2-1"
PAGE_SIZE, vma->vm_page_prot))
return -EAGAIN;
} else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
- vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+ vma->vm_page_prot = pgprot_wc(vma->vm_page_prot);
if (io_remap_pfn_range(vma, vma->vm_start,
to_mucontext(context)->uar.pfn +
--- /dev/null
+/*
+ * Copyright (c) 2006-2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/pci.h>
+#include "wc.h"
+
+#if defined(__i386__) || defined(__x86_64__)
+
+pgprot_t pgprot_wc(pgprot_t _prot)
+{
+ return pgprot_writecombine(_prot);
+}
+
+int mlx4_wc_enabled(void)
+{
+ return 1;
+}
+
+#elif defined(CONFIG_PPC64)
+
+pgprot_t pgprot_wc(pgprot_t _prot)
+{
+ return __pgprot((pgprot_val(_prot) | _PAGE_NO_CACHE) &
+ ~(pgprot_t)_PAGE_GUARDED);
+}
+
+int mlx4_wc_enabled(void)
+{
+ return 1;
+}
+
+#else /* !(defined(__i386__) || defined(__x86_64__)) */
+
+pgprot_t pgprot_wc(pgprot_t _prot)
+{
+ return pgprot_noncached(_prot);
+}
+
+int mlx4_wc_enabled(void)
+{
+ return 0;
+}
+
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2006-2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef mlx4_WC_H
+#define mlx4_WC_H
+
+#include <asm/pgtable.h>
+
+int mlx4_wc_enabled(void);
+pgprot_t pgprot_wc(pgprot_t _prot);
+
+#endif