1 /* Blackfin Performance Monitor model.
3 Copyright (C) 2010-2016 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/>. */
25 #include "dv-bfin_pfmon.h"
27 /* XXX: This is mostly a stub. */
33 /* Order after here is important -- matches hardware MMR layout. */
38 #define mmr_base() offsetof(struct bfin_pfmon, ctl)
39 #define mmr_offset(mmr) (offsetof(struct bfin_pfmon, mmr) - mmr_base())
41 static const char * const mmr_names[] =
43 "PFCTL", [mmr_offset (cntr0)] = "PFCNTR0", "PFCNTR1",
45 #define mmr_name(off) (mmr_names[(off) / 4] ? : "<INV>")
48 bfin_pfmon_io_write_buffer (struct hw *me, const void *source, int space,
49 address_word addr, unsigned nr_bytes)
51 struct bfin_pfmon *pfmon = hw_data (me);
56 /* Invalid access mode is higher priority than missing register. */
57 if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, true))
60 value = dv_load_4 (source);
61 mmr_off = addr - pfmon->base;
62 valuep = (void *)((unsigned long)pfmon + mmr_base() + mmr_off);
69 case mmr_offset(cntr0):
70 case mmr_offset(cntr1):
74 dv_bfin_mmr_invalid (me, addr, nr_bytes, true);
82 bfin_pfmon_io_read_buffer (struct hw *me, void *dest, int space,
83 address_word addr, unsigned nr_bytes)
85 struct bfin_pfmon *pfmon = hw_data (me);
90 /* Invalid access mode is higher priority than missing register. */
91 if (!dv_bfin_mmr_require_32 (me, addr, nr_bytes, false))
94 mmr_off = addr - pfmon->base;
95 valuep = (void *)((unsigned long)pfmon + mmr_base() + mmr_off);
101 case mmr_offset(ctl):
102 case mmr_offset(cntr0):
103 case mmr_offset(cntr1):
107 dv_bfin_mmr_invalid (me, addr, nr_bytes, false);
111 dv_store_4 (dest, value);
117 attach_bfin_pfmon_regs (struct hw *me, struct bfin_pfmon *pfmon)
119 address_word attach_address;
121 unsigned attach_size;
122 reg_property_spec reg;
124 if (hw_find_property (me, "reg") == NULL)
125 hw_abort (me, "Missing \"reg\" property");
127 if (!hw_find_reg_array_property (me, "reg", 0, ®))
128 hw_abort (me, "\"reg\" property must contain three addr/size entries");
130 hw_unit_address_to_attach_address (hw_parent (me),
132 &attach_space, &attach_address, me);
133 hw_unit_size_to_attach_size (hw_parent (me), ®.size, &attach_size, me);
135 if (attach_size != BFIN_COREMMR_PFMON_SIZE)
136 hw_abort (me, "\"reg\" size must be %#x", BFIN_COREMMR_PFMON_SIZE);
138 hw_attach_address (hw_parent (me),
139 0, attach_space, attach_address, attach_size, me);
141 pfmon->base = attach_address;
145 bfin_pfmon_finish (struct hw *me)
147 struct bfin_pfmon *pfmon;
149 pfmon = HW_ZALLOC (me, struct bfin_pfmon);
151 set_hw_data (me, pfmon);
152 set_hw_io_read_buffer (me, bfin_pfmon_io_read_buffer);
153 set_hw_io_write_buffer (me, bfin_pfmon_io_write_buffer);
155 attach_bfin_pfmon_regs (me, pfmon);
158 const struct hw_descriptor dv_bfin_pfmon_descriptor[] =
160 {"bfin_pfmon", bfin_pfmon_finish,},