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 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 pmap_change_attr((vm_offset_t)rman_get_bushandle(sc->sc_rres[0]), 79 rle->count, VM_MEMATTR_CACHEABLE); 80 if (sc->sc_rres[0] == NULL) { 81 device_printf(dev, "Could not allocate memory.\n"); 82 return (ENXIO); 83 } 84 /* Cache inhibited area */ 85 rle = resource_list_find(res, SYS_RES_MEMORY, 1); 86 sc->sc_rrid[1] = 1; 87 sc->sc_rres[1] = bus_alloc_resource(dev, 88 SYS_RES_MEMORY, &sc->sc_rrid[1], rle->start + sc->sc_dp_pa, 89 rle->end + sc->sc_dp_pa, rle->count, RF_ACTIVE); 90 if (sc->sc_rres[1] == NULL) { 91 device_printf(dev, "Could not allocate memory.\n"); 92 bus_release_resource(dev, SYS_RES_MEMORY, 93 sc->sc_rrid[0], sc->sc_rres[0]); 94 return (ENXIO); 95 } 96 sc->sc_dp[PCPU_GET(cpuid)].dp_regs_mapped = 1; 97 } 98 /* Acquire portal's CE_PA and CI_PA */ 99 rle = resource_list_find(res, SYS_RES_MEMORY, 0); 100 sc->sc_dp[cpu].dp_ce_pa = rle->start + sc->sc_dp_pa; 101 sc->sc_dp[cpu].dp_ce_size = rle->count; 102 rle = resource_list_find(res, SYS_RES_MEMORY, 1); 103 sc->sc_dp[cpu].dp_ci_pa = rle->start + sc->sc_dp_pa; 104 sc->sc_dp[cpu].dp_ci_size = rle->count; 105 106 /* Allocate interrupts */ 107 rle = resource_list_find(res, SYS_RES_IRQ, 0); 108 sc->sc_dp[cpu].dp_irid = 0; 109 sc->sc_dp[cpu].dp_ires = bus_alloc_resource(dev, 110 SYS_RES_IRQ, &sc->sc_dp[cpu].dp_irid, rle->start, rle->end, 111 rle->count, RF_ACTIVE); 112 /* Save interrupt number for later use */ 113 sc->sc_dp[cpu].dp_intr_num = rle->start; 114 115 if (sc->sc_dp[cpu].dp_ires == NULL) { 116 device_printf(dev, "Could not allocate irq.\n"); 117 return (ENXIO); 118 } 119 120 err = XX_PreallocAndBindIntr((int)sc->sc_dp[cpu].dp_ires, cpu); 121 122 if (err != E_OK) { 123 device_printf(dev, "Could not prealloc and bind interrupt\n"); 124 bus_release_resource(dev, SYS_RES_IRQ, 125 sc->sc_dp[cpu].dp_irid, sc->sc_dp[cpu].dp_ires); 126 sc->sc_dp[cpu].dp_ires = NULL; 127 return (ENXIO); 128 } 129 130 #if 0 131 err = bus_generic_config_intr(dev, rle->start, di->di_intr_trig, 132 di->di_intr_pol); 133 if (err != 0) { 134 device_printf(dev, "Could not configure interrupt\n"); 135 bus_release_resource(dev, SYS_RES_IRQ, 136 sc->sc_dp[cpu].dp_irid, sc->sc_dp[cpu].dp_ires); 137 sc->sc_dp[cpu].dp_ires = NULL; 138 return (err); 139 } 140 #endif 141 142 return (0); 143 } 144 145 void 146 dpaa_portal_map_registers(struct dpaa_portals_softc *sc) 147 { 148 unsigned int cpu; 149 150 sched_pin(); 151 cpu = PCPU_GET(cpuid); 152 if (sc->sc_dp[cpu].dp_regs_mapped) 153 goto out; 154 155 tlb1_set_entry(rman_get_bushandle(sc->sc_rres[0]), 156 sc->sc_dp[cpu].dp_ce_pa, sc->sc_dp[cpu].dp_ce_size, 157 _TLB_ENTRY_MEM); 158 tlb1_set_entry(rman_get_bushandle(sc->sc_rres[1]), 159 sc->sc_dp[cpu].dp_ci_pa, sc->sc_dp[cpu].dp_ci_size, 160 _TLB_ENTRY_IO); 161 162 sc->sc_dp[cpu].dp_regs_mapped = 1; 163 164 out: 165 sched_unpin(); 166 } 167