| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "zircon_platform_mmio.h" |
| #include "magma_util/dlog.h" |
| #include "magma_util/macros.h" |
| |
| #include <zircon/process.h> // for zx_vmar_root_self |
| #include <zircon/syscalls.h> |
| |
| namespace magma { |
| |
| static_assert(ZX_CACHE_POLICY_CACHED == static_cast<int>(PlatformMmio::CACHE_POLICY_CACHED), |
| "enum mismatch"); |
| static_assert(ZX_CACHE_POLICY_UNCACHED == static_cast<int>(PlatformMmio::CACHE_POLICY_UNCACHED), |
| "enum mismatch"); |
| static_assert(ZX_CACHE_POLICY_UNCACHED_DEVICE == |
| static_cast<int>(PlatformMmio::CACHE_POLICY_UNCACHED_DEVICE), |
| "enum mismatch"); |
| static_assert(ZX_CACHE_POLICY_WRITE_COMBINING == |
| static_cast<int>(PlatformMmio::CACHE_POLICY_WRITE_COMBINING), |
| "enum mismatch"); |
| |
| ZirconPlatformMmio::ZirconPlatformMmio(void* addr, uint64_t size, zx_handle_t handle) |
| : PlatformMmio(addr, size), handle_(handle) |
| { |
| } |
| |
| ZirconPlatformMmio::~ZirconPlatformMmio() |
| { |
| // Clean up the MMIO mapping that was made in the ctor. |
| DLOG("ZirconPlatformMmio dtor"); |
| zx_status_t status = |
| zx_vmar_unmap(zx_vmar_root_self(), reinterpret_cast<uintptr_t>(addr()), size()); |
| if (status != ZX_OK) |
| DLOG("error unmapping %p (len %zu): %d\n", addr(), size(), status); |
| zx_handle_close(handle_); |
| } |
| |
| } // namespace magma |
