mirror of https://gitee.com/openkylin/linux.git
78 lines
1.1 KiB
C
78 lines
1.1 KiB
C
#ifndef _GUARDED_STORAGE_H
|
|
#define _GUARDED_STORAGE_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct gs_cb {
|
|
__u64 reserved;
|
|
__u64 gsd;
|
|
__u64 gssm;
|
|
__u64 gs_epl_a;
|
|
};
|
|
|
|
struct gs_epl {
|
|
__u8 pad1;
|
|
union {
|
|
__u8 gs_eam;
|
|
struct {
|
|
__u8 : 6;
|
|
__u8 e : 1;
|
|
__u8 b : 1;
|
|
};
|
|
};
|
|
union {
|
|
__u8 gs_eci;
|
|
struct {
|
|
__u8 tx : 1;
|
|
__u8 cx : 1;
|
|
__u8 : 5;
|
|
__u8 in : 1;
|
|
};
|
|
};
|
|
union {
|
|
__u8 gs_eai;
|
|
struct {
|
|
__u8 : 1;
|
|
__u8 t : 1;
|
|
__u8 as : 2;
|
|
__u8 ar : 4;
|
|
};
|
|
};
|
|
__u32 pad2;
|
|
__u64 gs_eha;
|
|
__u64 gs_eia;
|
|
__u64 gs_eoa;
|
|
__u64 gs_eir;
|
|
__u64 gs_era;
|
|
};
|
|
|
|
#define GS_ENABLE 0
|
|
#define GS_DISABLE 1
|
|
#define GS_SET_BC_CB 2
|
|
#define GS_CLEAR_BC_CB 3
|
|
#define GS_BROADCAST 4
|
|
|
|
static inline void load_gs_cb(struct gs_cb *gs_cb)
|
|
{
|
|
asm volatile(".insn rxy,0xe3000000004d,0,%0" : : "Q" (*gs_cb));
|
|
}
|
|
|
|
static inline void store_gs_cb(struct gs_cb *gs_cb)
|
|
{
|
|
asm volatile(".insn rxy,0xe30000000049,0,%0" : : "Q" (*gs_cb));
|
|
}
|
|
|
|
static inline void save_gs_cb(struct gs_cb *gs_cb)
|
|
{
|
|
if (gs_cb)
|
|
store_gs_cb(gs_cb);
|
|
}
|
|
|
|
static inline void restore_gs_cb(struct gs_cb *gs_cb)
|
|
{
|
|
if (gs_cb)
|
|
load_gs_cb(gs_cb);
|
|
}
|
|
|
|
#endif /* _GUARDED_STORAGE_H */
|