| // Copyright 2018 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. |
| |
| #ifndef ZIRCON_LIMITS_H_ |
| #define ZIRCON_LIMITS_H_ |
| |
| #include <stdint.h> |
| |
| #define ZX_PAGE_SHIFT ((uint32_t)12u) |
| #define ZX_PAGE_SIZE ((uintptr_t)(1u << ZX_PAGE_SHIFT)) |
| #define ZX_PAGE_MASK (ZX_PAGE_SIZE - 1u) |
| |
| #if defined(__x86_64__) || defined(__i386__) |
| |
| #define ZX_MIN_PAGE_SHIFT ((uint32_t)12u) |
| #define ZX_MAX_PAGE_SHIFT ((uint32_t)21u) |
| |
| #elif defined(__aarch64__) |
| |
| #define ZX_MIN_PAGE_SHIFT ((uint32_t)12u) |
| #define ZX_MAX_PAGE_SHIFT ((uint32_t)16u) |
| |
| #elif defined(__riscv) |
| |
| #define ZX_MIN_PAGE_SHIFT ((uint32_t)12u) |
| #define ZX_MAX_PAGE_SHIFT ((uint32_t)21u) |
| |
| #else |
| |
| #error what architecture? |
| |
| #endif |
| |
| #define ZX_MIN_PAGE_SIZE ((uintptr_t)(1u << ZX_MIN_PAGE_SHIFT)) |
| #define ZX_MAX_PAGE_SIZE ((uintptr_t)(1u << ZX_MAX_PAGE_SHIFT)) |
| |
| #endif // ZIRCON_LIMITS_H_ |
