| /* |
| * Copyright (c) 2011 The Chromium OS Authors. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #ifndef __SANDBOX_ASM_IO_H |
| #define __SANDBOX_ASM_IO_H |
| |
| /* |
| * Given a physical address and a length, return a virtual address |
| * that can be used to access the memory range with the caching |
| * properties specified by "flags". |
| */ |
| #define MAP_NOCACHE (0) |
| #define MAP_WRCOMBINE (0) |
| #define MAP_WRBACK (0) |
| #define MAP_WRTHROUGH (0) |
| |
| void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags); |
| |
| /* |
| * Take down a mapping set up by map_physmem(). |
| */ |
| static inline void unmap_physmem(void *vaddr, unsigned long flags) |
| { |
| |
| } |
| |
| /* For sandbox, we want addresses to point into our RAM buffer */ |
| static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) |
| { |
| return map_physmem(paddr, len, MAP_WRBACK); |
| } |
| |
| static inline void unmap_sysmem(const void *vaddr) |
| { |
| } |
| |
| /* Map from a pointer to our RAM buffer */ |
| phys_addr_t map_to_sysmem(const void *ptr); |
| |
| /* Define nops for sandbox I/O access */ |
| #define readb(addr) 0 |
| #define readw(addr) 0 |
| #define readl(addr) 0 |
| #define writeb(v, addr) |
| #define writew(v, addr) |
| #define writel(v, addr) |
| |
| #include <iotrace.h> |
| |
| #endif |
