3 * \brief UTCB definitions for PPC32.
7 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
8 * economic rights: Technische Universität Dresden (Germany)
10 * This file is part of TUD:OS and distributed under the terms of the
11 * GNU General Public License 2.
12 * Please see the COPYING-GPL-2 file for details.
14 * As a special exception, you may use this file as part of a free software
15 * library without restriction. Specifically, if other files instantiate
16 * templates or use macros or inline functions from this file, or you compile
17 * this file and link it with other files to produce an executable, this
18 * file does not by itself cause the resulting executable to be covered by
19 * the GNU General Public License. This exception does not however
20 * invalidate any other reasons why the executable file might be covered by
21 * the GNU General Public License.
23 #ifndef __L4_SYS__INCLUDE__ARCH_PPC32__UTCB_H__
24 #define __L4_SYS__INCLUDE__ARCH_PPC32__UTCB_H__
26 #include <l4/sys/types.h>
29 * \defgroup l4_utcb_api_arm PPC32 Virtual Registers (UTCB)
30 * \ingroup l4_utcb_api
34 * \brief UTCB constants for PPC32
35 * \ingroup l4_utcb_api_arm
38 enum L4_utcb_consts_ppc32
40 L4_UTCB_EXCEPTION_REGS_SIZE = 39,
41 L4_UTCB_GENERIC_DATA_SIZE = 63,
42 L4_UTCB_GENERIC_BUFFERS_SIZE = 58,
44 L4_UTCB_MSG_REGS_OFFSET = 0,
45 L4_UTCB_BUF_REGS_OFFSET = 64 * sizeof(l4_umword_t),
46 L4_UTCB_THREAD_REGS_OFFSET = 123 * sizeof(l4_umword_t),
48 L4_UTCB_INHERIT_FPU = 1UL << 24,
54 * \brief UTCB structure for exceptions.
55 * \ingroup l4_utcb_api_arm
57 typedef struct l4_exc_regs_t
59 l4_umword_t pfa; /**< page fault address */
60 l4_umword_t err; /**< error code */
62 l4_umword_t r[28]; /** GPR 0,3 .. 10, 13 .. 31 */
63 l4_umword_t xer; /**< fixed point exception register */
64 l4_umword_t ctr; /**< count register */
65 l4_umword_t cr; /**< condition register */
66 l4_umword_t dummy; /**< dummy */
67 l4_umword_t srr0; /**< IP */
68 l4_umword_t lr; /**< ulr */
69 l4_umword_t sp; /**< stack pointer */
70 l4_umword_t r12; /**< GPR 12 */
71 l4_umword_t r11; /**< GPR 11 */
74 #include_next <l4/sys/utcb.h>
77 * ==================================================================
82 L4_INLINE l4_utcb_t *l4_utcb_direct(void) L4_NOTHROW
95 L4_INLINE l4_umword_t l4_utcb_exc_pc(l4_exc_regs_t *u) L4_NOTHROW
100 L4_INLINE void l4_utcb_exc_pc_set(l4_exc_regs_t *u, l4_addr_t pc) L4_NOTHROW
105 L4_INLINE l4_umword_t l4_utcb_exc_typeval(l4_exc_regs_t *u) L4_NOTHROW
110 //TODO: cbass check pfa values
111 L4_INLINE int l4_utcb_exc_is_pf(l4_exc_regs_t *u) L4_NOTHROW
113 return u->err & 0x00010000;
116 L4_INLINE l4_addr_t l4_utcb_exc_pfa(l4_exc_regs_t *u) L4_NOTHROW
118 return (u->pfa & ~3) | (!(u->err & 0x00020000) << 1);
121 #endif /* ! __L4_SYS__INCLUDE__ARCH_PPC32__UTCB_H__ */