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("$FreeBSD$");
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
52int
53dpaa_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	err = XX_PreallocAndBindIntr(dev, (uintptr_t)sc->sc_dp[cpu].dp_ires, cpu);
124
125	if (err != E_OK) {
126		device_printf(dev, "Could not prealloc and bind interrupt\n");
127		bus_release_resource(dev, SYS_RES_IRQ,
128		    sc->sc_dp[cpu].dp_irid, sc->sc_dp[cpu].dp_ires);
129		sc->sc_dp[cpu].dp_ires = NULL;
130		return (ENXIO);
131	}
132
133#if 0
134	err = bus_generic_config_intr(dev, rle->start, di->di_intr_trig,
135	    di->di_intr_pol);
136	if (err != 0) {
137		device_printf(dev, "Could not configure interrupt\n");
138		bus_release_resource(dev, SYS_RES_IRQ,
139		    sc->sc_dp[cpu].dp_irid, sc->sc_dp[cpu].dp_ires);
140		sc->sc_dp[cpu].dp_ires = NULL;
141		return (err);
142	}
143#endif
144
145	return (0);
146}
147
148void
149dpaa_portal_map_registers(struct dpaa_portals_softc *sc)
150{
151	unsigned int cpu;
152
153	sched_pin();
154	cpu = PCPU_GET(cpuid);
155	if (sc->sc_dp[cpu].dp_regs_mapped)
156		goto out;
157
158	tlb1_set_entry(rman_get_bushandle(sc->sc_rres[0]),
159	    sc->sc_dp[cpu].dp_ce_pa, sc->sc_dp[cpu].dp_ce_size,
160	    _TLB_ENTRY_MEM);
161	tlb1_set_entry(rman_get_bushandle(sc->sc_rres[1]),
162	    sc->sc_dp[cpu].dp_ci_pa, sc->sc_dp[cpu].dp_ci_size,
163	    _TLB_ENTRY_IO);
164
165	sc->sc_dp[cpu].dp_regs_mapped = 1;
166
167out:
168	sched_unpin();
169}
170