xref: /linux/arch/xtensa/variants/fsf/include/variant/tie.h (revision b8265621f4888af9494e1d685620871ec81bc33d)
1 /*
2  * This header file describes this specific Xtensa processor's TIE extensions
3  * that extend basic Xtensa core functionality.  It is customized to this
4  * Xtensa processor configuration.
5  *
6  * This file is subject to the terms and conditions of the GNU General Public
7  * License.  See the file "COPYING" in the main directory of this archive
8  * for more details.
9  *
10  * Copyright (C) 1999-2007 Tensilica Inc.
11  */
12 
13 #ifndef _XTENSA_CORE_TIE_H
14 #define _XTENSA_CORE_TIE_H
15 
16 #define XCHAL_CP_NUM			0	/* number of coprocessors */
17 #define XCHAL_CP_MAX			0	/* max CP ID + 1 (0 if none) */
18 #define XCHAL_CP_MASK			0x00	/* bitmask of all CPs by ID */
19 #define XCHAL_CP_PORT_MASK		0x00	/* bitmask of only port CPs */
20 
21 /*  Filler info for unassigned coprocessors, to simplify arrays etc:  */
22 #define XCHAL_NCP_SA_SIZE		0
23 #define XCHAL_NCP_SA_ALIGN		1
24 #define XCHAL_CP0_SA_SIZE		0
25 #define XCHAL_CP0_SA_ALIGN		1
26 #define XCHAL_CP1_SA_SIZE		0
27 #define XCHAL_CP1_SA_ALIGN		1
28 #define XCHAL_CP2_SA_SIZE		0
29 #define XCHAL_CP2_SA_ALIGN		1
30 #define XCHAL_CP3_SA_SIZE		0
31 #define XCHAL_CP3_SA_ALIGN		1
32 #define XCHAL_CP4_SA_SIZE		0
33 #define XCHAL_CP4_SA_ALIGN		1
34 #define XCHAL_CP5_SA_SIZE		0
35 #define XCHAL_CP5_SA_ALIGN		1
36 #define XCHAL_CP6_SA_SIZE		0
37 #define XCHAL_CP6_SA_ALIGN		1
38 #define XCHAL_CP7_SA_SIZE		0
39 #define XCHAL_CP7_SA_ALIGN		1
40 
41 /*  Save area for non-coprocessor optional and custom (TIE) state:  */
42 #define XCHAL_NCP_SA_SIZE		0
43 #define XCHAL_NCP_SA_ALIGN		1
44 
45 /*  Total save area for optional and custom state (NCP + CPn):  */
46 #define XCHAL_TOTAL_SA_SIZE		0	/* with 16-byte align padding */
47 #define XCHAL_TOTAL_SA_ALIGN		1	/* actual minimum alignment */
48 
49 #define XCHAL_NCP_SA_NUM	0
50 #define XCHAL_NCP_SA_LIST(s)
51 #define XCHAL_CP0_SA_NUM	0
52 #define XCHAL_CP0_SA_LIST(s)
53 #define XCHAL_CP1_SA_NUM	0
54 #define XCHAL_CP1_SA_LIST(s)
55 #define XCHAL_CP2_SA_NUM	0
56 #define XCHAL_CP2_SA_LIST(s)
57 #define XCHAL_CP3_SA_NUM	0
58 #define XCHAL_CP3_SA_LIST(s)
59 #define XCHAL_CP4_SA_NUM	0
60 #define XCHAL_CP4_SA_LIST(s)
61 #define XCHAL_CP5_SA_NUM	0
62 #define XCHAL_CP5_SA_LIST(s)
63 #define XCHAL_CP6_SA_NUM	0
64 #define XCHAL_CP6_SA_LIST(s)
65 #define XCHAL_CP7_SA_NUM	0
66 #define XCHAL_CP7_SA_LIST(s)
67 
68 /* Byte length of instruction from its first nibble (op0 field), per FLIX.  */
69 #define XCHAL_OP0_FORMAT_LENGTHS	3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3
70 
71 #endif /*_XTENSA_CORE_TIE_H*/
72 
73