1 /* Blackfin Performance Monitor model.
3 Copyright (C) 2010-2021 Free Software Foundation, Inc.
4 Contributed by Analog Devices, Inc.
6 This file is part of simulators.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 /* This must come before any other includes. */
26 #include "dv-bfin_pfmon.h"
28 /* XXX: This is mostly a stub. */
34 /* Order after here is important -- matches hardware MMR layout. */
39 #define mmr_base() offsetof(struct bfin_pfmon, ctl)
40 #define mmr_offset(mmr) (offsetof(struct bfin_pfmon, mmr) - mmr_base())
42 static const char * const mmr_names
[] =
44 "PFCTL", [mmr_offset (cntr0
)] = "PFCNTR0", "PFCNTR1",
46 #define mmr_name(off) (mmr_names[(off) / 4] ? : "<INV>")
49 bfin_pfmon_io_write_buffer (struct hw
*me
, const void *source
, int space
,
50 address_word addr
, unsigned nr_bytes
)
52 struct bfin_pfmon
*pfmon
= hw_data (me
);
57 /* Invalid access mode is higher priority than missing register. */
58 if (!dv_bfin_mmr_require_32 (me
, addr
, nr_bytes
, true))
61 value
= dv_load_4 (source
);
62 mmr_off
= addr
- pfmon
->base
;
63 valuep
= (void *)((unsigned long)pfmon
+ mmr_base() + mmr_off
);
70 case mmr_offset(cntr0
):
71 case mmr_offset(cntr1
):
75 dv_bfin_mmr_invalid (me
, addr
, nr_bytes
, true);
83 bfin_pfmon_io_read_buffer (struct hw
*me
, void *dest
, int space
,
84 address_word addr
, unsigned nr_bytes
)
86 struct bfin_pfmon
*pfmon
= hw_data (me
);
91 /* Invalid access mode is higher priority than missing register. */
92 if (!dv_bfin_mmr_require_32 (me
, addr
, nr_bytes
, false))
95 mmr_off
= addr
- pfmon
->base
;
96 valuep
= (void *)((unsigned long)pfmon
+ mmr_base() + mmr_off
);
102 case mmr_offset(ctl
):
103 case mmr_offset(cntr0
):
104 case mmr_offset(cntr1
):
108 dv_bfin_mmr_invalid (me
, addr
, nr_bytes
, false);
112 dv_store_4 (dest
, value
);
118 attach_bfin_pfmon_regs (struct hw
*me
, struct bfin_pfmon
*pfmon
)
120 address_word attach_address
;
122 unsigned attach_size
;
123 reg_property_spec reg
;
125 if (hw_find_property (me
, "reg") == NULL
)
126 hw_abort (me
, "Missing \"reg\" property");
128 if (!hw_find_reg_array_property (me
, "reg", 0, ®
))
129 hw_abort (me
, "\"reg\" property must contain three addr/size entries");
131 hw_unit_address_to_attach_address (hw_parent (me
),
133 &attach_space
, &attach_address
, me
);
134 hw_unit_size_to_attach_size (hw_parent (me
), ®
.size
, &attach_size
, me
);
136 if (attach_size
!= BFIN_COREMMR_PFMON_SIZE
)
137 hw_abort (me
, "\"reg\" size must be %#x", BFIN_COREMMR_PFMON_SIZE
);
139 hw_attach_address (hw_parent (me
),
140 0, attach_space
, attach_address
, attach_size
, me
);
142 pfmon
->base
= attach_address
;
146 bfin_pfmon_finish (struct hw
*me
)
148 struct bfin_pfmon
*pfmon
;
150 pfmon
= HW_ZALLOC (me
, struct bfin_pfmon
);
152 set_hw_data (me
, pfmon
);
153 set_hw_io_read_buffer (me
, bfin_pfmon_io_read_buffer
);
154 set_hw_io_write_buffer (me
, bfin_pfmon_io_write_buffer
);
156 attach_bfin_pfmon_regs (me
, pfmon
);
159 const struct hw_descriptor dv_bfin_pfmon_descriptor
[] =
161 {"bfin_pfmon", bfin_pfmon_finish
,},