1 /*
2  *  arm VM parameters definitions
3  *
4  *  Copyright (c) 2013 Stacey D. Son
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef TARGET_ARCH_VMPARAM_H
21 #define TARGET_ARCH_VMPARAM_H
22 
23 #include "cpu.h"
24 
25 /* compare to sys/arm/include/vmparam.h */
26 #define TARGET_MAXTSIZ      (64 * MiB)           /* max text size */
27 #define TARGET_DFLDSIZ      (128 * MiB)          /* initial data size limit */
28 #define TARGET_MAXDSIZ      (512 * MiB)          /* max data size */
29 #define TARGET_DFLSSIZ      (4 * MiB)            /* initial stack size limit */
30 #define TARGET_MAXSSIZ      (64 * MiB)           /* max stack size */
31 #define TARGET_SGROWSIZ     (128 * KiB)          /* amount to grow stack */
32 
33 #define TARGET_RESERVED_VA  0xf7000000
34 
35                 /* KERNBASE - 512 MB */
36 #define TARGET_VM_MAXUSER_ADDRESS   (0xc0000000 - (512 * MiB))
37 #define TARGET_USRSTACK             TARGET_VM_MAXUSER_ADDRESS
38 
39 static inline abi_ulong get_sp_from_cpustate(CPUARMState *state)
40 {
41     return state->regs[13]; /* sp */
42 }
43 
44 static inline void set_second_rval(CPUARMState *state, abi_ulong retval2)
45 {
46     state->regs[1] = retval2;
47 }
48 
49 #endif /* TARGET_ARCH_VMPARAM_H */
50