1 /*-
2 * Copyright (c) 2012 Semihalf.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include "opt_platform.h"
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD: releng/12.0/sys/dev/dpaa/portals_common.c 307542 2016-10-18 00:55:15Z jhibbits $");
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/bus.h>
35 #include <sys/proc.h>
36 #include <sys/pcpu.h>
37 #include <sys/rman.h>
38 #include <sys/sched.h>
39
40 #include <vm/vm.h>
41 #include <vm/pmap.h>
42
43 #include <machine/resource.h>
44 #include <machine/tlb.h>
45
46 #include <contrib/ncsw/inc/error_ext.h>
47 #include <contrib/ncsw/inc/xx_ext.h>
48
49 #include "portals.h"
50
51
52 int
53 dpaa_portal_alloc_res(device_t dev, struct dpaa_portals_devinfo *di, int cpu)
54 {
55 struct dpaa_portals_softc *sc = device_get_softc(dev);
56 struct resource_list_entry *rle;
57 int err;
58 struct resource_list *res;
59
60 /* Check if MallocSmart allocator is ready */
61 if (XX_MallocSmartInit() != E_OK)
62 return (ENXIO);
63
64 res = &di->di_res;
65
66 /*
67 * Allocate memory.
68 * Reserve only one pair of CE/CI virtual memory regions
69 * for all CPUs, in order to save the space.
70 */
71 if (sc->sc_rres[0] == NULL) {
72 /* Cache enabled area */
73 rle = resource_list_find(res, SYS_RES_MEMORY, 0);
74 sc->sc_rrid[0] = 0;
75 sc->sc_rres[0] = bus_alloc_resource(dev,
76 SYS_RES_MEMORY, &sc->sc_rrid[0], rle->start + sc->sc_dp_pa,
77 rle->end + sc->sc_dp_pa, rle->count, RF_ACTIVE);
78 if (sc->sc_rres[0] == NULL) {
79 device_printf(dev,
80 "Could not allocate cache enabled memory.\n");
81 return (ENXIO);
82 }
83 tlb1_set_entry(rman_get_bushandle(sc->sc_rres[0]),
84 rle->start + sc->sc_dp_pa, rle->count, _TLB_ENTRY_MEM);
85 /* Cache inhibited area */
86 rle = resource_list_find(res, SYS_RES_MEMORY, 1);
87 sc->sc_rrid[1] = 1;
88 sc->sc_rres[1] = bus_alloc_resource(dev,
89 SYS_RES_MEMORY, &sc->sc_rrid[1], rle->start + sc->sc_dp_pa,
90 rle->end + sc->sc_dp_pa, rle->count, RF_ACTIVE);
91 if (sc->sc_rres[1] == NULL) {
92 device_printf(dev,
93 "Could not allocate cache inhibited memory.\n");
94 bus_release_resource(dev, SYS_RES_MEMORY,
95 sc->sc_rrid[0], sc->sc_rres[0]);
96 return (ENXIO);
97 }
98 tlb1_set_entry(rman_get_bushandle(sc->sc_rres[1]),
99 rle->start + sc->sc_dp_pa, rle->count, _TLB_ENTRY_IO);
100 sc->sc_dp[cpu].dp_regs_mapped = 1;
101 }
102 /* Acquire portal's CE_PA and CI_PA */
103 rle = resource_list_find(res, SYS_RES_MEMORY, 0);
104 sc->sc_dp[cpu].dp_ce_pa = rle->start + sc->sc_dp_pa;
105 sc->sc_dp[cpu].dp_ce_size = rle->count;
106 rle = resource_list_find(res, SYS_RES_MEMORY, 1);
107 sc->sc_dp[cpu].dp_ci_pa = rle->start + sc->sc_dp_pa;
108 sc->sc_dp[cpu].dp_ci_size = rle->count;
109
110 /* Allocate interrupts */
111 rle = resource_list_find(res, SYS_RES_IRQ, 0);
112 sc->sc_dp[cpu].dp_irid = 0;
113 sc->sc_dp[cpu].dp_ires = bus_alloc_resource(dev,
114 SYS_RES_IRQ, &sc->sc_dp[cpu].dp_irid, rle->start, rle->end,
115 rle->count, RF_ACTIVE);
116 /* Save interrupt number for later use */
117 sc->sc_dp[cpu].dp_intr_num = rle->start;
118
119 if (sc->sc_dp[cpu].dp_ires == NULL) {
120 device_printf(dev, "Could not allocate irq.\n");
121 return (ENXIO);
122 }
123
124 err = XX_PreallocAndBindIntr((uintptr_t)sc->sc_dp[cpu].dp_ires, cpu);
125
126 if (err != E_OK) {
127 device_printf(dev, "Could not prealloc and bind interrupt\n");
128 bus_release_resource(dev, SYS_RES_IRQ,
129 sc->sc_dp[cpu].dp_irid, sc->sc_dp[cpu].dp_ires);
130 sc->sc_dp[cpu].dp_ires = NULL;
131 return (ENXIO);
132 }
133
134 #if 0
135 err = bus_generic_config_intr(dev, rle->start, di->di_intr_trig,
136 di->di_intr_pol);
137 if (err != 0) {
138 device_printf(dev, "Could not configure interrupt\n");
139 bus_release_resource(dev, SYS_RES_IRQ,
140 sc->sc_dp[cpu].dp_irid, sc->sc_dp[cpu].dp_ires);
141 sc->sc_dp[cpu].dp_ires = NULL;
142 return (err);
143 }
144 #endif
145
146 return (0);
147 }
148
149 void
150 dpaa_portal_map_registers(struct dpaa_portals_softc *sc)
151 {
152 unsigned int cpu;
153
154 sched_pin();
155 cpu = PCPU_GET(cpuid);
156 if (sc->sc_dp[cpu].dp_regs_mapped)
157 goto out;
158
159 tlb1_set_entry(rman_get_bushandle(sc->sc_rres[0]),
160 sc->sc_dp[cpu].dp_ce_pa, sc->sc_dp[cpu].dp_ce_size,
161 _TLB_ENTRY_MEM);
162 tlb1_set_entry(rman_get_bushandle(sc->sc_rres[1]),
163 sc->sc_dp[cpu].dp_ci_pa, sc->sc_dp[cpu].dp_ci_size,
164 _TLB_ENTRY_IO);
165
166 sc->sc_dp[cpu].dp_regs_mapped = 1;
167
168 out:
169 sched_unpin();
170 }
Cache object: c1515926314cf4611c430327cf850698
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