qemu-e2k/linux-user/tilegx/syscall.h
Chen Gang 2cb154bc19 linux-user: tilegx: Add architecture related features
They are based on Linux kernel tilegx architecture for 64 bit binary,
and also based on tilegx ABI reference document, and also reference from
other targets implementations.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <BLU436-SMTP2508945F92945BB525605A3B9660@phx.gbl>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 07:17:51 -07:00

41 lines
1.2 KiB
C

#ifndef TILEGX_SYSCALLS_H
#define TILEGX_SYSCALLS_H
#define UNAME_MACHINE "tilegx"
#define UNAME_MINIMUM_RELEASE "3.19"
#define MMAP_SHIFT TARGET_PAGE_BITS
#define TILEGX_IS_ERRNO(ret) \
((ret) > 0xfffffffffffff000ULL) /* errno is 0 -- 4096 */
typedef uint64_t tilegx_reg_t;
struct target_pt_regs {
union {
/* Saved main processor registers; 56..63 are special. */
tilegx_reg_t regs[56];
struct {
tilegx_reg_t __regs[53];
tilegx_reg_t tp; /* aliases regs[TREG_TP] */
tilegx_reg_t sp; /* aliases regs[TREG_SP] */
tilegx_reg_t lr; /* aliases regs[TREG_LR] */
};
};
/* Saved special registers. */
tilegx_reg_t pc; /* stored in EX_CONTEXT_K_0 */
tilegx_reg_t ex1; /* stored in EX_CONTEXT_K_1 (PL and ICS bit) */
tilegx_reg_t faultnum; /* fault number (INT_SWINT_1 for syscall) */
tilegx_reg_t orig_r0; /* r0 at syscall entry, else zero */
tilegx_reg_t flags; /* flags (see below) */
tilegx_reg_t cmpexch; /* value of CMPEXCH_VALUE SPR at interrupt */
tilegx_reg_t pad[2];
};
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2
#endif