mirror of
https://github.com/qemu/qemu.git
synced 2024-12-05 17:53:36 +08:00
ec150c7e09
Back in 2016, we discussed[1] rules for headers, and these were generally liked: 1. Have a carefully curated header that's included everywhere first. We got that already thanks to Peter: osdep.h. 2. Headers should normally include everything they need beyond osdep.h. If exceptions are needed for some reason, they must be documented in the header. If all that's needed from a header is typedefs, put those into qemu/typedefs.h instead of including the header. 3. Cyclic inclusion is forbidden. This patch gets include/ closer to obeying 2. It's actually extracted from my "[RFC] Baby steps towards saner headers" series[2], which demonstrates a possible path towards checking 2 automatically. It passes the RFC test there. [1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org> https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html [2] Message-Id: <20190711122827.18970-1-armbru@redhat.com> https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-2-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2011 Citrix Ltd.
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
|
* the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef XEN_MAPCACHE_H
|
|
#define XEN_MAPCACHE_H
|
|
|
|
#include "exec/cpu-common.h"
|
|
|
|
typedef hwaddr (*phys_offset_to_gaddr_t)(hwaddr phys_offset,
|
|
ram_addr_t size);
|
|
#ifdef CONFIG_XEN
|
|
|
|
void xen_map_cache_init(phys_offset_to_gaddr_t f,
|
|
void *opaque);
|
|
uint8_t *xen_map_cache(hwaddr phys_addr, hwaddr size,
|
|
uint8_t lock, bool dma);
|
|
ram_addr_t xen_ram_addr_from_mapcache(void *ptr);
|
|
void xen_invalidate_map_cache_entry(uint8_t *buffer);
|
|
void xen_invalidate_map_cache(void);
|
|
uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr,
|
|
hwaddr new_phys_addr,
|
|
hwaddr size);
|
|
#else
|
|
|
|
static inline void xen_map_cache_init(phys_offset_to_gaddr_t f,
|
|
void *opaque)
|
|
{
|
|
}
|
|
|
|
static inline uint8_t *xen_map_cache(hwaddr phys_addr,
|
|
hwaddr size,
|
|
uint8_t lock,
|
|
bool dma)
|
|
{
|
|
abort();
|
|
}
|
|
|
|
static inline ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
|
|
{
|
|
abort();
|
|
}
|
|
|
|
static inline void xen_invalidate_map_cache_entry(uint8_t *buffer)
|
|
{
|
|
}
|
|
|
|
static inline void xen_invalidate_map_cache(void)
|
|
{
|
|
}
|
|
|
|
static inline uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr,
|
|
hwaddr new_phys_addr,
|
|
hwaddr size)
|
|
{
|
|
abort();
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* XEN_MAPCACHE_H */
|