/* * IBM eServer eHCA Infiniband device driver for Linux on POWER * * load store abstraction for ehca register access with tracing * * Authors: Christoph Raisch <raisch@de.ibm.com> * Hoang-Nam Nguyen <hnguyen@de.ibm.com> * * Copyright (c) 2005 IBM Corporation * * All rights reserved. * * This source code is distributed under a dual license of GPL v2.0 and OpenIB * BSD. * * OpenIB BSD License * * 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. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "ehca_classes.h" #include "hipz_hw.h" u64 hcall_map_page(u64 physaddr) { return (u64)ioremap(physaddr, EHCA_PAGESIZE); } int hcall_unmap_page(u64 mapaddr) { iounmap((volatile void __iomem *) mapaddr); return 0; } int hcp_galpas_ctor(struct h_galpas *galpas, int is_user, u64 paddr_kernel, u64 paddr_user) { if (!is_user) { galpas->kernel.fw_handle = hcall_map_page(paddr_kernel); if (!galpas->kernel.fw_handle) return -ENOMEM; } else galpas->kernel.fw_handle = 0; galpas->user.fw_handle = paddr_user; return 0; } int hcp_galpas_dtor(struct h_galpas *galpas) { if (galpas->kernel.fw_handle) { int ret = hcall_unmap_page(galpas->kernel.fw_handle); if (ret) return ret; } galpas->user.fw_handle = galpas->kernel.fw_handle = 0; return 0; }