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1 | 4040ab72 | David Gibson | /*
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2 | 4040ab72 | David Gibson | * QEMU sPAPR VIO code
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3 | 4040ab72 | David Gibson | *
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4 | 4040ab72 | David Gibson | * Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com>
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5 | 4040ab72 | David Gibson | * Based on the s390 virtio bus code:
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6 | 4040ab72 | David Gibson | * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
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7 | 4040ab72 | David Gibson | *
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8 | 4040ab72 | David Gibson | * This library is free software; you can redistribute it and/or
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9 | 4040ab72 | David Gibson | * modify it under the terms of the GNU Lesser General Public
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10 | 4040ab72 | David Gibson | * License as published by the Free Software Foundation; either
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11 | 4040ab72 | David Gibson | * version 2 of the License, or (at your option) any later version.
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12 | 4040ab72 | David Gibson | *
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13 | 4040ab72 | David Gibson | * This library is distributed in the hope that it will be useful,
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14 | 4040ab72 | David Gibson | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | 4040ab72 | David Gibson | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 | 4040ab72 | David Gibson | * Lesser General Public License for more details.
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17 | 4040ab72 | David Gibson | *
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18 | 4040ab72 | David Gibson | * You should have received a copy of the GNU Lesser General Public
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19 | 4040ab72 | David Gibson | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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20 | 4040ab72 | David Gibson | */
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21 | 4040ab72 | David Gibson | |
22 | 4040ab72 | David Gibson | #include "hw.h" |
23 | 4040ab72 | David Gibson | #include "sysemu.h" |
24 | 4040ab72 | David Gibson | #include "boards.h" |
25 | 4040ab72 | David Gibson | #include "monitor.h" |
26 | 4040ab72 | David Gibson | #include "loader.h" |
27 | 4040ab72 | David Gibson | #include "elf.h" |
28 | 4040ab72 | David Gibson | #include "hw/sysbus.h" |
29 | 4040ab72 | David Gibson | #include "kvm.h" |
30 | 4040ab72 | David Gibson | #include "device_tree.h" |
31 | b45d63b6 | Ben Herrenschmidt | #include "kvm_ppc.h" |
32 | 4040ab72 | David Gibson | |
33 | 4040ab72 | David Gibson | #include "hw/spapr.h" |
34 | 4040ab72 | David Gibson | #include "hw/spapr_vio.h" |
35 | 277f9acf | Paolo Bonzini | #include "hw/xics.h" |
36 | 4040ab72 | David Gibson | |
37 | 4040ab72 | David Gibson | #ifdef CONFIG_FDT
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38 | 4040ab72 | David Gibson | #include <libfdt.h> |
39 | 4040ab72 | David Gibson | #endif /* CONFIG_FDT */ |
40 | 4040ab72 | David Gibson | |
41 | 4040ab72 | David Gibson | /* #define DEBUG_SPAPR */
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42 | ee86dfee | David Gibson | /* #define DEBUG_TCE */
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43 | 4040ab72 | David Gibson | |
44 | 4040ab72 | David Gibson | #ifdef DEBUG_SPAPR
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45 | 4040ab72 | David Gibson | #define dprintf(fmt, ...) \
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46 | 4040ab72 | David Gibson | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
47 | 4040ab72 | David Gibson | #else
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48 | 4040ab72 | David Gibson | #define dprintf(fmt, ...) \
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49 | 4040ab72 | David Gibson | do { } while (0) |
50 | 4040ab72 | David Gibson | #endif
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51 | 4040ab72 | David Gibson | |
52 | 4040ab72 | David Gibson | static struct BusInfo spapr_vio_bus_info = { |
53 | 4040ab72 | David Gibson | .name = "spapr-vio",
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54 | 4040ab72 | David Gibson | .size = sizeof(VIOsPAPRBus),
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55 | 416343b1 | Paolo Bonzini | .props = (Property[]) { |
56 | 416343b1 | Paolo Bonzini | DEFINE_PROP_UINT32("irq", VIOsPAPRDevice, vio_irq_num, 0), \ |
57 | 416343b1 | Paolo Bonzini | DEFINE_PROP_END_OF_LIST(), |
58 | 416343b1 | Paolo Bonzini | }, |
59 | 4040ab72 | David Gibson | }; |
60 | 4040ab72 | David Gibson | |
61 | 4040ab72 | David Gibson | VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg) |
62 | 4040ab72 | David Gibson | { |
63 | 4040ab72 | David Gibson | DeviceState *qdev; |
64 | 4040ab72 | David Gibson | VIOsPAPRDevice *dev = NULL;
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65 | 4040ab72 | David Gibson | |
66 | 4040ab72 | David Gibson | QLIST_FOREACH(qdev, &bus->bus.children, sibling) { |
67 | 4040ab72 | David Gibson | dev = (VIOsPAPRDevice *)qdev; |
68 | 4040ab72 | David Gibson | if (dev->reg == reg) {
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69 | 4040ab72 | David Gibson | break;
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70 | 4040ab72 | David Gibson | } |
71 | 4040ab72 | David Gibson | } |
72 | 4040ab72 | David Gibson | |
73 | 4040ab72 | David Gibson | return dev;
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74 | 4040ab72 | David Gibson | } |
75 | 4040ab72 | David Gibson | |
76 | 4040ab72 | David Gibson | #ifdef CONFIG_FDT
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77 | 4040ab72 | David Gibson | static int vio_make_devnode(VIOsPAPRDevice *dev, |
78 | 4040ab72 | David Gibson | void *fdt)
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79 | 4040ab72 | David Gibson | { |
80 | 4040ab72 | David Gibson | VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)dev->qdev.info; |
81 | 4040ab72 | David Gibson | int vdevice_off, node_off;
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82 | 4040ab72 | David Gibson | int ret;
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83 | 4040ab72 | David Gibson | |
84 | 4040ab72 | David Gibson | vdevice_off = fdt_path_offset(fdt, "/vdevice");
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85 | 4040ab72 | David Gibson | if (vdevice_off < 0) { |
86 | 4040ab72 | David Gibson | return vdevice_off;
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87 | 4040ab72 | David Gibson | } |
88 | 4040ab72 | David Gibson | |
89 | 4040ab72 | David Gibson | node_off = fdt_add_subnode(fdt, vdevice_off, dev->qdev.id); |
90 | 4040ab72 | David Gibson | if (node_off < 0) { |
91 | 4040ab72 | David Gibson | return node_off;
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92 | 4040ab72 | David Gibson | } |
93 | 4040ab72 | David Gibson | |
94 | 4040ab72 | David Gibson | ret = fdt_setprop_cell(fdt, node_off, "reg", dev->reg);
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95 | 4040ab72 | David Gibson | if (ret < 0) { |
96 | 4040ab72 | David Gibson | return ret;
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97 | 4040ab72 | David Gibson | } |
98 | 4040ab72 | David Gibson | |
99 | 4040ab72 | David Gibson | if (info->dt_type) {
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100 | 4040ab72 | David Gibson | ret = fdt_setprop_string(fdt, node_off, "device_type",
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101 | 4040ab72 | David Gibson | info->dt_type); |
102 | 4040ab72 | David Gibson | if (ret < 0) { |
103 | 4040ab72 | David Gibson | return ret;
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104 | 4040ab72 | David Gibson | } |
105 | 4040ab72 | David Gibson | } |
106 | 4040ab72 | David Gibson | |
107 | 4040ab72 | David Gibson | if (info->dt_compatible) {
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108 | 4040ab72 | David Gibson | ret = fdt_setprop_string(fdt, node_off, "compatible",
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109 | 4040ab72 | David Gibson | info->dt_compatible); |
110 | 4040ab72 | David Gibson | if (ret < 0) { |
111 | 4040ab72 | David Gibson | return ret;
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112 | 4040ab72 | David Gibson | } |
113 | 4040ab72 | David Gibson | } |
114 | 4040ab72 | David Gibson | |
115 | 00dc738d | David Gibson | if (dev->qirq) {
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116 | 00dc738d | David Gibson | uint32_t ints_prop[] = {cpu_to_be32(dev->vio_irq_num), 0};
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117 | 00dc738d | David Gibson | |
118 | 00dc738d | David Gibson | ret = fdt_setprop(fdt, node_off, "interrupts", ints_prop,
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119 | 00dc738d | David Gibson | sizeof(ints_prop));
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120 | 00dc738d | David Gibson | if (ret < 0) { |
121 | 00dc738d | David Gibson | return ret;
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122 | 00dc738d | David Gibson | } |
123 | 00dc738d | David Gibson | } |
124 | 00dc738d | David Gibson | |
125 | ee86dfee | David Gibson | if (dev->rtce_window_size) {
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126 | ee86dfee | David Gibson | uint32_t dma_prop[] = {cpu_to_be32(dev->reg), |
127 | ee86dfee | David Gibson | 0, 0, |
128 | ee86dfee | David Gibson | 0, cpu_to_be32(dev->rtce_window_size)};
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129 | ee86dfee | David Gibson | |
130 | ee86dfee | David Gibson | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2); |
131 | ee86dfee | David Gibson | if (ret < 0) { |
132 | ee86dfee | David Gibson | return ret;
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133 | ee86dfee | David Gibson | } |
134 | ee86dfee | David Gibson | |
135 | ee86dfee | David Gibson | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2); |
136 | ee86dfee | David Gibson | if (ret < 0) { |
137 | ee86dfee | David Gibson | return ret;
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138 | ee86dfee | David Gibson | } |
139 | ee86dfee | David Gibson | |
140 | ee86dfee | David Gibson | ret = fdt_setprop(fdt, node_off, "ibm,my-dma-window", dma_prop,
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141 | ee86dfee | David Gibson | sizeof(dma_prop));
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142 | ee86dfee | David Gibson | if (ret < 0) { |
143 | ee86dfee | David Gibson | return ret;
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144 | ee86dfee | David Gibson | } |
145 | ee86dfee | David Gibson | } |
146 | ee86dfee | David Gibson | |
147 | 4040ab72 | David Gibson | if (info->devnode) {
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148 | 4040ab72 | David Gibson | ret = (info->devnode)(dev, fdt, node_off); |
149 | 4040ab72 | David Gibson | if (ret < 0) { |
150 | 4040ab72 | David Gibson | return ret;
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151 | 4040ab72 | David Gibson | } |
152 | 4040ab72 | David Gibson | } |
153 | 4040ab72 | David Gibson | |
154 | 4040ab72 | David Gibson | return node_off;
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155 | 4040ab72 | David Gibson | } |
156 | 4040ab72 | David Gibson | #endif /* CONFIG_FDT */ |
157 | 4040ab72 | David Gibson | |
158 | ee86dfee | David Gibson | /*
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159 | ee86dfee | David Gibson | * RTCE handling
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160 | ee86dfee | David Gibson | */
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161 | ee86dfee | David Gibson | |
162 | ee86dfee | David Gibson | static void rtce_init(VIOsPAPRDevice *dev) |
163 | ee86dfee | David Gibson | { |
164 | ee86dfee | David Gibson | size_t size = (dev->rtce_window_size >> SPAPR_VIO_TCE_PAGE_SHIFT) |
165 | ee86dfee | David Gibson | * sizeof(VIOsPAPR_RTCE);
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166 | ee86dfee | David Gibson | |
167 | ee86dfee | David Gibson | if (size) {
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168 | 7267c094 | Anthony Liguori | dev->rtce_table = g_malloc0(size); |
169 | ee86dfee | David Gibson | } |
170 | ee86dfee | David Gibson | } |
171 | ee86dfee | David Gibson | |
172 | ee86dfee | David Gibson | static target_ulong h_put_tce(CPUState *env, sPAPREnvironment *spapr,
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173 | ee86dfee | David Gibson | target_ulong opcode, target_ulong *args) |
174 | ee86dfee | David Gibson | { |
175 | ee86dfee | David Gibson | target_ulong liobn = args[0];
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176 | ee86dfee | David Gibson | target_ulong ioba = args[1];
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177 | ee86dfee | David Gibson | target_ulong tce = args[2];
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178 | ee86dfee | David Gibson | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, liobn); |
179 | ee86dfee | David Gibson | VIOsPAPR_RTCE *rtce; |
180 | ee86dfee | David Gibson | |
181 | ee86dfee | David Gibson | if (!dev) {
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182 | ee86dfee | David Gibson | hcall_dprintf("spapr_vio_put_tce on non-existent LIOBN "
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183 | ee86dfee | David Gibson | TARGET_FMT_lx "\n", liobn);
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184 | ee86dfee | David Gibson | return H_PARAMETER;
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185 | ee86dfee | David Gibson | } |
186 | ee86dfee | David Gibson | |
187 | ee86dfee | David Gibson | ioba &= ~(SPAPR_VIO_TCE_PAGE_SIZE - 1);
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188 | ee86dfee | David Gibson | |
189 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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190 | ee86dfee | David Gibson | fprintf(stderr, "spapr_vio_put_tce on %s ioba 0x" TARGET_FMT_lx
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191 | ee86dfee | David Gibson | " TCE 0x" TARGET_FMT_lx "\n", dev->qdev.id, ioba, tce); |
192 | ee86dfee | David Gibson | #endif
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193 | ee86dfee | David Gibson | |
194 | ee86dfee | David Gibson | if (ioba >= dev->rtce_window_size) {
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195 | ee86dfee | David Gibson | hcall_dprintf("spapr_vio_put_tce on out-of-boards IOBA 0x"
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196 | ee86dfee | David Gibson | TARGET_FMT_lx "\n", ioba);
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197 | ee86dfee | David Gibson | return H_PARAMETER;
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198 | ee86dfee | David Gibson | } |
199 | ee86dfee | David Gibson | |
200 | ee86dfee | David Gibson | rtce = dev->rtce_table + (ioba >> SPAPR_VIO_TCE_PAGE_SHIFT); |
201 | ee86dfee | David Gibson | rtce->tce = tce; |
202 | ee86dfee | David Gibson | |
203 | ee86dfee | David Gibson | return H_SUCCESS;
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204 | ee86dfee | David Gibson | } |
205 | ee86dfee | David Gibson | |
206 | ee86dfee | David Gibson | int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
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207 | ee86dfee | David Gibson | target_ulong len, enum VIOsPAPR_TCEAccess access)
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208 | ee86dfee | David Gibson | { |
209 | ee86dfee | David Gibson | int start, end, i;
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210 | ee86dfee | David Gibson | |
211 | ee86dfee | David Gibson | start = ioba >> SPAPR_VIO_TCE_PAGE_SHIFT; |
212 | ee86dfee | David Gibson | end = (ioba + len - 1) >> SPAPR_VIO_TCE_PAGE_SHIFT;
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213 | ee86dfee | David Gibson | |
214 | ee86dfee | David Gibson | for (i = start; i <= end; i++) {
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215 | ee86dfee | David Gibson | if ((dev->rtce_table[i].tce & access) != access) {
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216 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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217 | ee86dfee | David Gibson | fprintf(stderr, "FAIL on %d\n", i);
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218 | ee86dfee | David Gibson | #endif
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219 | ee86dfee | David Gibson | return -1; |
220 | ee86dfee | David Gibson | } |
221 | ee86dfee | David Gibson | } |
222 | ee86dfee | David Gibson | |
223 | ee86dfee | David Gibson | return 0; |
224 | ee86dfee | David Gibson | } |
225 | ee86dfee | David Gibson | |
226 | ee86dfee | David Gibson | int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr, const void *buf, |
227 | ee86dfee | David Gibson | uint32_t size) |
228 | ee86dfee | David Gibson | { |
229 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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230 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_write taddr=0x%llx size=0x%x\n",
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231 | ee86dfee | David Gibson | (unsigned long long)taddr, size); |
232 | ee86dfee | David Gibson | #endif
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233 | ee86dfee | David Gibson | |
234 | 08942ac1 | Ben Herrenschmidt | /* Check for bypass */
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235 | 08942ac1 | Ben Herrenschmidt | if (dev->flags & VIO_PAPR_FLAG_DMA_BYPASS) {
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236 | 08942ac1 | Ben Herrenschmidt | cpu_physical_memory_write(taddr, buf, size); |
237 | 08942ac1 | Ben Herrenschmidt | return 0; |
238 | 08942ac1 | Ben Herrenschmidt | } |
239 | 08942ac1 | Ben Herrenschmidt | |
240 | ee86dfee | David Gibson | while (size) {
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241 | ee86dfee | David Gibson | uint64_t tce; |
242 | ee86dfee | David Gibson | uint32_t lsize; |
243 | ee86dfee | David Gibson | uint64_t txaddr; |
244 | ee86dfee | David Gibson | |
245 | ee86dfee | David Gibson | /* Check if we are in bound */
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246 | ee86dfee | David Gibson | if (taddr >= dev->rtce_window_size) {
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247 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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248 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_write out of bounds\n");
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249 | ee86dfee | David Gibson | #endif
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250 | ee86dfee | David Gibson | return H_DEST_PARM;
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251 | ee86dfee | David Gibson | } |
252 | ee86dfee | David Gibson | tce = dev->rtce_table[taddr >> SPAPR_VIO_TCE_PAGE_SHIFT].tce; |
253 | ee86dfee | David Gibson | |
254 | ee86dfee | David Gibson | /* How much til end of page ? */
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255 | ee86dfee | David Gibson | lsize = MIN(size, ((~taddr) & SPAPR_VIO_TCE_PAGE_MASK) + 1);
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256 | ee86dfee | David Gibson | |
257 | ee86dfee | David Gibson | /* Check TCE */
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258 | ee86dfee | David Gibson | if (!(tce & 2)) { |
259 | ee86dfee | David Gibson | return H_DEST_PARM;
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260 | ee86dfee | David Gibson | } |
261 | ee86dfee | David Gibson | |
262 | ee86dfee | David Gibson | /* Translate */
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263 | ee86dfee | David Gibson | txaddr = (tce & ~SPAPR_VIO_TCE_PAGE_MASK) | |
264 | ee86dfee | David Gibson | (taddr & SPAPR_VIO_TCE_PAGE_MASK); |
265 | ee86dfee | David Gibson | |
266 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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267 | ee86dfee | David Gibson | fprintf(stderr, " -> write to txaddr=0x%llx, size=0x%x\n",
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268 | ee86dfee | David Gibson | (unsigned long long)txaddr, lsize); |
269 | ee86dfee | David Gibson | #endif
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270 | ee86dfee | David Gibson | |
271 | ee86dfee | David Gibson | /* Do it */
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272 | ee86dfee | David Gibson | cpu_physical_memory_write(txaddr, buf, lsize); |
273 | ee86dfee | David Gibson | buf += lsize; |
274 | ee86dfee | David Gibson | taddr += lsize; |
275 | ee86dfee | David Gibson | size -= lsize; |
276 | ee86dfee | David Gibson | } |
277 | ee86dfee | David Gibson | return 0; |
278 | ee86dfee | David Gibson | } |
279 | ee86dfee | David Gibson | |
280 | ee86dfee | David Gibson | int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size)
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281 | ee86dfee | David Gibson | { |
282 | ee86dfee | David Gibson | /* FIXME: allocating a temp buffer is nasty, but just stepping
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283 | ee86dfee | David Gibson | * through writing zeroes is awkward. This will do for now. */
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284 | ee86dfee | David Gibson | uint8_t zeroes[size]; |
285 | ee86dfee | David Gibson | |
286 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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287 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_zero taddr=0x%llx size=0x%x\n",
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288 | ee86dfee | David Gibson | (unsigned long long)taddr, size); |
289 | ee86dfee | David Gibson | #endif
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290 | ee86dfee | David Gibson | |
291 | ee86dfee | David Gibson | memset(zeroes, 0, size);
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292 | ee86dfee | David Gibson | return spapr_tce_dma_write(dev, taddr, zeroes, size);
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293 | ee86dfee | David Gibson | } |
294 | ee86dfee | David Gibson | |
295 | ee86dfee | David Gibson | void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val)
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296 | ee86dfee | David Gibson | { |
297 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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298 | ee86dfee | David Gibson | } |
299 | ee86dfee | David Gibson | |
300 | ee86dfee | David Gibson | void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val)
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301 | ee86dfee | David Gibson | { |
302 | ee86dfee | David Gibson | val = tswap16(val); |
303 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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304 | ee86dfee | David Gibson | } |
305 | ee86dfee | David Gibson | |
306 | ee86dfee | David Gibson | |
307 | ee86dfee | David Gibson | void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val)
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308 | ee86dfee | David Gibson | { |
309 | ee86dfee | David Gibson | val = tswap32(val); |
310 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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311 | ee86dfee | David Gibson | } |
312 | ee86dfee | David Gibson | |
313 | ee86dfee | David Gibson | void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val)
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314 | ee86dfee | David Gibson | { |
315 | ee86dfee | David Gibson | val = tswap64(val); |
316 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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317 | ee86dfee | David Gibson | } |
318 | ee86dfee | David Gibson | |
319 | ee86dfee | David Gibson | int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr, void *buf, |
320 | ee86dfee | David Gibson | uint32_t size) |
321 | ee86dfee | David Gibson | { |
322 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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323 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_write taddr=0x%llx size=0x%x\n",
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324 | ee86dfee | David Gibson | (unsigned long long)taddr, size); |
325 | ee86dfee | David Gibson | #endif
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326 | ee86dfee | David Gibson | |
327 | 08942ac1 | Ben Herrenschmidt | /* Check for bypass */
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328 | 08942ac1 | Ben Herrenschmidt | if (dev->flags & VIO_PAPR_FLAG_DMA_BYPASS) {
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329 | 08942ac1 | Ben Herrenschmidt | cpu_physical_memory_read(taddr, buf, size); |
330 | 08942ac1 | Ben Herrenschmidt | return 0; |
331 | 08942ac1 | Ben Herrenschmidt | } |
332 | 08942ac1 | Ben Herrenschmidt | |
333 | ee86dfee | David Gibson | while (size) {
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334 | ee86dfee | David Gibson | uint64_t tce; |
335 | ee86dfee | David Gibson | uint32_t lsize; |
336 | ee86dfee | David Gibson | uint64_t txaddr; |
337 | ee86dfee | David Gibson | |
338 | ee86dfee | David Gibson | /* Check if we are in bound */
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339 | ee86dfee | David Gibson | if (taddr >= dev->rtce_window_size) {
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340 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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341 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_read out of bounds\n");
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342 | ee86dfee | David Gibson | #endif
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343 | ee86dfee | David Gibson | return H_DEST_PARM;
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344 | ee86dfee | David Gibson | } |
345 | ee86dfee | David Gibson | tce = dev->rtce_table[taddr >> SPAPR_VIO_TCE_PAGE_SHIFT].tce; |
346 | ee86dfee | David Gibson | |
347 | ee86dfee | David Gibson | /* How much til end of page ? */
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348 | ee86dfee | David Gibson | lsize = MIN(size, ((~taddr) & SPAPR_VIO_TCE_PAGE_MASK) + 1);
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349 | ee86dfee | David Gibson | |
350 | ee86dfee | David Gibson | /* Check TCE */
|
351 | ee86dfee | David Gibson | if (!(tce & 1)) { |
352 | ee86dfee | David Gibson | return H_DEST_PARM;
|
353 | ee86dfee | David Gibson | } |
354 | ee86dfee | David Gibson | |
355 | ee86dfee | David Gibson | /* Translate */
|
356 | ee86dfee | David Gibson | txaddr = (tce & ~SPAPR_VIO_TCE_PAGE_MASK) | |
357 | ee86dfee | David Gibson | (taddr & SPAPR_VIO_TCE_PAGE_MASK); |
358 | ee86dfee | David Gibson | |
359 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
|
360 | ee86dfee | David Gibson | fprintf(stderr, " -> write to txaddr=0x%llx, size=0x%x\n",
|
361 | ee86dfee | David Gibson | (unsigned long long)txaddr, lsize); |
362 | ee86dfee | David Gibson | #endif
|
363 | ee86dfee | David Gibson | /* Do it */
|
364 | ee86dfee | David Gibson | cpu_physical_memory_read(txaddr, buf, lsize); |
365 | ee86dfee | David Gibson | buf += lsize; |
366 | ee86dfee | David Gibson | taddr += lsize; |
367 | ee86dfee | David Gibson | size -= lsize; |
368 | ee86dfee | David Gibson | } |
369 | ee86dfee | David Gibson | return H_SUCCESS;
|
370 | ee86dfee | David Gibson | } |
371 | ee86dfee | David Gibson | |
372 | ee86dfee | David Gibson | uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr) |
373 | ee86dfee | David Gibson | { |
374 | ee86dfee | David Gibson | uint64_t val; |
375 | ee86dfee | David Gibson | |
376 | ee86dfee | David Gibson | spapr_tce_dma_read(dev, taddr, &val, sizeof(val));
|
377 | ee86dfee | David Gibson | return tswap64(val);
|
378 | ee86dfee | David Gibson | } |
379 | ee86dfee | David Gibson | |
380 | b45d63b6 | Ben Herrenschmidt | /*
|
381 | b45d63b6 | Ben Herrenschmidt | * CRQ handling
|
382 | b45d63b6 | Ben Herrenschmidt | */
|
383 | b45d63b6 | Ben Herrenschmidt | static target_ulong h_reg_crq(CPUState *env, sPAPREnvironment *spapr,
|
384 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
385 | b45d63b6 | Ben Herrenschmidt | { |
386 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
387 | b45d63b6 | Ben Herrenschmidt | target_ulong queue_addr = args[1];
|
388 | b45d63b6 | Ben Herrenschmidt | target_ulong queue_len = args[2];
|
389 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
390 | b45d63b6 | Ben Herrenschmidt | |
391 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
392 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_reg_crq on non-existent unit 0x"
|
393 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
394 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
395 | b45d63b6 | Ben Herrenschmidt | } |
396 | b45d63b6 | Ben Herrenschmidt | |
397 | b45d63b6 | Ben Herrenschmidt | /* We can't grok a queue size bigger than 256M for now */
|
398 | b45d63b6 | Ben Herrenschmidt | if (queue_len < 0x1000 || queue_len > 0x10000000) { |
399 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_reg_crq, queue size too small or too big (0x%llx)\n",
|
400 | b45d63b6 | Ben Herrenschmidt | (unsigned long long)queue_len); |
401 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
402 | b45d63b6 | Ben Herrenschmidt | } |
403 | b45d63b6 | Ben Herrenschmidt | |
404 | b45d63b6 | Ben Herrenschmidt | /* Check queue alignment */
|
405 | b45d63b6 | Ben Herrenschmidt | if (queue_addr & 0xfff) { |
406 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_reg_crq, queue not aligned (0x%llx)\n",
|
407 | b45d63b6 | Ben Herrenschmidt | (unsigned long long)queue_addr); |
408 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
409 | b45d63b6 | Ben Herrenschmidt | } |
410 | b45d63b6 | Ben Herrenschmidt | |
411 | b45d63b6 | Ben Herrenschmidt | /* Check if device supports CRQs */
|
412 | b45d63b6 | Ben Herrenschmidt | if (!dev->crq.SendFunc) {
|
413 | b45d63b6 | Ben Herrenschmidt | return H_NOT_FOUND;
|
414 | b45d63b6 | Ben Herrenschmidt | } |
415 | b45d63b6 | Ben Herrenschmidt | |
416 | b45d63b6 | Ben Herrenschmidt | |
417 | b45d63b6 | Ben Herrenschmidt | /* Already a queue ? */
|
418 | b45d63b6 | Ben Herrenschmidt | if (dev->crq.qsize) {
|
419 | b45d63b6 | Ben Herrenschmidt | return H_RESOURCE;
|
420 | b45d63b6 | Ben Herrenschmidt | } |
421 | b45d63b6 | Ben Herrenschmidt | dev->crq.qladdr = queue_addr; |
422 | b45d63b6 | Ben Herrenschmidt | dev->crq.qsize = queue_len; |
423 | b45d63b6 | Ben Herrenschmidt | dev->crq.qnext = 0;
|
424 | b45d63b6 | Ben Herrenschmidt | |
425 | b45d63b6 | Ben Herrenschmidt | dprintf("CRQ for dev 0x" TARGET_FMT_lx " registered at 0x" |
426 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "/0x" TARGET_FMT_lx "\n", |
427 | b45d63b6 | Ben Herrenschmidt | reg, queue_addr, queue_len); |
428 | b45d63b6 | Ben Herrenschmidt | return H_SUCCESS;
|
429 | b45d63b6 | Ben Herrenschmidt | } |
430 | b45d63b6 | Ben Herrenschmidt | |
431 | b45d63b6 | Ben Herrenschmidt | static target_ulong h_free_crq(CPUState *env, sPAPREnvironment *spapr,
|
432 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
433 | b45d63b6 | Ben Herrenschmidt | { |
434 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
435 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
436 | b45d63b6 | Ben Herrenschmidt | |
437 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
438 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_free_crq on non-existent unit 0x"
|
439 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
440 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
441 | b45d63b6 | Ben Herrenschmidt | } |
442 | b45d63b6 | Ben Herrenschmidt | |
443 | b45d63b6 | Ben Herrenschmidt | dev->crq.qladdr = 0;
|
444 | b45d63b6 | Ben Herrenschmidt | dev->crq.qsize = 0;
|
445 | b45d63b6 | Ben Herrenschmidt | dev->crq.qnext = 0;
|
446 | b45d63b6 | Ben Herrenschmidt | |
447 | b45d63b6 | Ben Herrenschmidt | dprintf("CRQ for dev 0x" TARGET_FMT_lx " freed\n", reg); |
448 | b45d63b6 | Ben Herrenschmidt | |
449 | b45d63b6 | Ben Herrenschmidt | return H_SUCCESS;
|
450 | b45d63b6 | Ben Herrenschmidt | } |
451 | b45d63b6 | Ben Herrenschmidt | |
452 | b45d63b6 | Ben Herrenschmidt | static target_ulong h_send_crq(CPUState *env, sPAPREnvironment *spapr,
|
453 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
454 | b45d63b6 | Ben Herrenschmidt | { |
455 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
456 | b45d63b6 | Ben Herrenschmidt | target_ulong msg_hi = args[1];
|
457 | b45d63b6 | Ben Herrenschmidt | target_ulong msg_lo = args[2];
|
458 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
459 | b45d63b6 | Ben Herrenschmidt | uint64_t crq_mangle[2];
|
460 | b45d63b6 | Ben Herrenschmidt | |
461 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
462 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_send_crq on non-existent unit 0x"
|
463 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
464 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
465 | b45d63b6 | Ben Herrenschmidt | } |
466 | b45d63b6 | Ben Herrenschmidt | crq_mangle[0] = cpu_to_be64(msg_hi);
|
467 | b45d63b6 | Ben Herrenschmidt | crq_mangle[1] = cpu_to_be64(msg_lo);
|
468 | b45d63b6 | Ben Herrenschmidt | |
469 | b45d63b6 | Ben Herrenschmidt | if (dev->crq.SendFunc) {
|
470 | b45d63b6 | Ben Herrenschmidt | return dev->crq.SendFunc(dev, (uint8_t *)crq_mangle);
|
471 | b45d63b6 | Ben Herrenschmidt | } |
472 | b45d63b6 | Ben Herrenschmidt | |
473 | b45d63b6 | Ben Herrenschmidt | return H_HARDWARE;
|
474 | b45d63b6 | Ben Herrenschmidt | } |
475 | b45d63b6 | Ben Herrenschmidt | |
476 | b45d63b6 | Ben Herrenschmidt | static target_ulong h_enable_crq(CPUState *env, sPAPREnvironment *spapr,
|
477 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
478 | b45d63b6 | Ben Herrenschmidt | { |
479 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
480 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
481 | b45d63b6 | Ben Herrenschmidt | |
482 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
483 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_enable_crq on non-existent unit 0x"
|
484 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
485 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
486 | b45d63b6 | Ben Herrenschmidt | } |
487 | b45d63b6 | Ben Herrenschmidt | |
488 | b45d63b6 | Ben Herrenschmidt | return 0; |
489 | b45d63b6 | Ben Herrenschmidt | } |
490 | b45d63b6 | Ben Herrenschmidt | |
491 | b45d63b6 | Ben Herrenschmidt | /* Returns negative error, 0 success, or positive: queue full */
|
492 | b45d63b6 | Ben Herrenschmidt | int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq)
|
493 | b45d63b6 | Ben Herrenschmidt | { |
494 | b45d63b6 | Ben Herrenschmidt | int rc;
|
495 | b45d63b6 | Ben Herrenschmidt | uint8_t byte; |
496 | b45d63b6 | Ben Herrenschmidt | |
497 | b45d63b6 | Ben Herrenschmidt | if (!dev->crq.qsize) {
|
498 | b45d63b6 | Ben Herrenschmidt | fprintf(stderr, "spapr_vio_send_creq on uninitialized queue\n");
|
499 | b45d63b6 | Ben Herrenschmidt | return -1; |
500 | b45d63b6 | Ben Herrenschmidt | } |
501 | b45d63b6 | Ben Herrenschmidt | |
502 | b45d63b6 | Ben Herrenschmidt | /* Maybe do a fast path for KVM just writing to the pages */
|
503 | b45d63b6 | Ben Herrenschmidt | rc = spapr_tce_dma_read(dev, dev->crq.qladdr + dev->crq.qnext, &byte, 1);
|
504 | b45d63b6 | Ben Herrenschmidt | if (rc) {
|
505 | b45d63b6 | Ben Herrenschmidt | return rc;
|
506 | b45d63b6 | Ben Herrenschmidt | } |
507 | b45d63b6 | Ben Herrenschmidt | if (byte != 0) { |
508 | b45d63b6 | Ben Herrenschmidt | return 1; |
509 | b45d63b6 | Ben Herrenschmidt | } |
510 | b45d63b6 | Ben Herrenschmidt | |
511 | b45d63b6 | Ben Herrenschmidt | rc = spapr_tce_dma_write(dev, dev->crq.qladdr + dev->crq.qnext + 8,
|
512 | b45d63b6 | Ben Herrenschmidt | &crq[8], 8); |
513 | b45d63b6 | Ben Herrenschmidt | if (rc) {
|
514 | b45d63b6 | Ben Herrenschmidt | return rc;
|
515 | b45d63b6 | Ben Herrenschmidt | } |
516 | b45d63b6 | Ben Herrenschmidt | |
517 | b45d63b6 | Ben Herrenschmidt | kvmppc_eieio(); |
518 | b45d63b6 | Ben Herrenschmidt | |
519 | b45d63b6 | Ben Herrenschmidt | rc = spapr_tce_dma_write(dev, dev->crq.qladdr + dev->crq.qnext, crq, 8);
|
520 | b45d63b6 | Ben Herrenschmidt | if (rc) {
|
521 | b45d63b6 | Ben Herrenschmidt | return rc;
|
522 | b45d63b6 | Ben Herrenschmidt | } |
523 | b45d63b6 | Ben Herrenschmidt | |
524 | b45d63b6 | Ben Herrenschmidt | dev->crq.qnext = (dev->crq.qnext + 16) % dev->crq.qsize;
|
525 | b45d63b6 | Ben Herrenschmidt | |
526 | b45d63b6 | Ben Herrenschmidt | if (dev->signal_state & 1) { |
527 | b45d63b6 | Ben Herrenschmidt | qemu_irq_pulse(dev->qirq); |
528 | b45d63b6 | Ben Herrenschmidt | } |
529 | b45d63b6 | Ben Herrenschmidt | |
530 | b45d63b6 | Ben Herrenschmidt | return 0; |
531 | b45d63b6 | Ben Herrenschmidt | } |
532 | b45d63b6 | Ben Herrenschmidt | |
533 | 08942ac1 | Ben Herrenschmidt | /* "quiesce" handling */
|
534 | 08942ac1 | Ben Herrenschmidt | |
535 | 08942ac1 | Ben Herrenschmidt | static void spapr_vio_quiesce_one(VIOsPAPRDevice *dev) |
536 | 08942ac1 | Ben Herrenschmidt | { |
537 | 08942ac1 | Ben Herrenschmidt | dev->flags &= ~VIO_PAPR_FLAG_DMA_BYPASS; |
538 | 08942ac1 | Ben Herrenschmidt | |
539 | 08942ac1 | Ben Herrenschmidt | if (dev->rtce_table) {
|
540 | 08942ac1 | Ben Herrenschmidt | size_t size = (dev->rtce_window_size >> SPAPR_VIO_TCE_PAGE_SHIFT) |
541 | 08942ac1 | Ben Herrenschmidt | * sizeof(VIOsPAPR_RTCE);
|
542 | 08942ac1 | Ben Herrenschmidt | memset(dev->rtce_table, 0, size);
|
543 | 08942ac1 | Ben Herrenschmidt | } |
544 | 08942ac1 | Ben Herrenschmidt | |
545 | 08942ac1 | Ben Herrenschmidt | dev->crq.qladdr = 0;
|
546 | 08942ac1 | Ben Herrenschmidt | dev->crq.qsize = 0;
|
547 | 08942ac1 | Ben Herrenschmidt | dev->crq.qnext = 0;
|
548 | 08942ac1 | Ben Herrenschmidt | } |
549 | 08942ac1 | Ben Herrenschmidt | |
550 | 08942ac1 | Ben Herrenschmidt | static void rtas_set_tce_bypass(sPAPREnvironment *spapr, uint32_t token, |
551 | 08942ac1 | Ben Herrenschmidt | uint32_t nargs, target_ulong args, |
552 | 08942ac1 | Ben Herrenschmidt | uint32_t nret, target_ulong rets) |
553 | 08942ac1 | Ben Herrenschmidt | { |
554 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRBus *bus = spapr->vio_bus; |
555 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRDevice *dev; |
556 | 08942ac1 | Ben Herrenschmidt | uint32_t unit, enable; |
557 | 08942ac1 | Ben Herrenschmidt | |
558 | 08942ac1 | Ben Herrenschmidt | if (nargs != 2) { |
559 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, -3); |
560 | 08942ac1 | Ben Herrenschmidt | return;
|
561 | 08942ac1 | Ben Herrenschmidt | } |
562 | 08942ac1 | Ben Herrenschmidt | unit = rtas_ld(args, 0);
|
563 | 08942ac1 | Ben Herrenschmidt | enable = rtas_ld(args, 1);
|
564 | 08942ac1 | Ben Herrenschmidt | dev = spapr_vio_find_by_reg(bus, unit); |
565 | 08942ac1 | Ben Herrenschmidt | if (!dev) {
|
566 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, -3); |
567 | 08942ac1 | Ben Herrenschmidt | return;
|
568 | 08942ac1 | Ben Herrenschmidt | } |
569 | 08942ac1 | Ben Herrenschmidt | if (enable) {
|
570 | 08942ac1 | Ben Herrenschmidt | dev->flags |= VIO_PAPR_FLAG_DMA_BYPASS; |
571 | 08942ac1 | Ben Herrenschmidt | } else {
|
572 | 08942ac1 | Ben Herrenschmidt | dev->flags &= ~VIO_PAPR_FLAG_DMA_BYPASS; |
573 | 08942ac1 | Ben Herrenschmidt | } |
574 | 08942ac1 | Ben Herrenschmidt | |
575 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, 0); |
576 | 08942ac1 | Ben Herrenschmidt | } |
577 | 08942ac1 | Ben Herrenschmidt | |
578 | 08942ac1 | Ben Herrenschmidt | static void rtas_quiesce(sPAPREnvironment *spapr, uint32_t token, |
579 | 08942ac1 | Ben Herrenschmidt | uint32_t nargs, target_ulong args, |
580 | 08942ac1 | Ben Herrenschmidt | uint32_t nret, target_ulong rets) |
581 | 08942ac1 | Ben Herrenschmidt | { |
582 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRBus *bus = spapr->vio_bus; |
583 | 08942ac1 | Ben Herrenschmidt | DeviceState *qdev; |
584 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRDevice *dev = NULL;
|
585 | 08942ac1 | Ben Herrenschmidt | |
586 | 08942ac1 | Ben Herrenschmidt | if (nargs != 0) { |
587 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, -3); |
588 | 08942ac1 | Ben Herrenschmidt | return;
|
589 | 08942ac1 | Ben Herrenschmidt | } |
590 | 08942ac1 | Ben Herrenschmidt | |
591 | 08942ac1 | Ben Herrenschmidt | QLIST_FOREACH(qdev, &bus->bus.children, sibling) { |
592 | 08942ac1 | Ben Herrenschmidt | dev = (VIOsPAPRDevice *)qdev; |
593 | 08942ac1 | Ben Herrenschmidt | spapr_vio_quiesce_one(dev); |
594 | 08942ac1 | Ben Herrenschmidt | } |
595 | 08942ac1 | Ben Herrenschmidt | |
596 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, 0); |
597 | 08942ac1 | Ben Herrenschmidt | } |
598 | 08942ac1 | Ben Herrenschmidt | |
599 | 4040ab72 | David Gibson | static int spapr_vio_busdev_init(DeviceState *qdev, DeviceInfo *qinfo) |
600 | 4040ab72 | David Gibson | { |
601 | 4040ab72 | David Gibson | VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qinfo; |
602 | 4040ab72 | David Gibson | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; |
603 | 4040ab72 | David Gibson | char *id;
|
604 | 4040ab72 | David Gibson | |
605 | 4040ab72 | David Gibson | if (asprintf(&id, "%s@%x", info->dt_name, dev->reg) < 0) { |
606 | 4040ab72 | David Gibson | return -1; |
607 | 4040ab72 | David Gibson | } |
608 | 4040ab72 | David Gibson | |
609 | 4040ab72 | David Gibson | dev->qdev.id = id; |
610 | e6c866d4 | David Gibson | |
611 | e6c866d4 | David Gibson | dev->qirq = spapr_allocate_irq(dev->vio_irq_num, &dev->vio_irq_num); |
612 | e6c866d4 | David Gibson | if (!dev->qirq) {
|
613 | e6c866d4 | David Gibson | return -1; |
614 | 416343b1 | Paolo Bonzini | } |
615 | 4040ab72 | David Gibson | |
616 | ee86dfee | David Gibson | rtce_init(dev); |
617 | ee86dfee | David Gibson | |
618 | 4040ab72 | David Gibson | return info->init(dev);
|
619 | 4040ab72 | David Gibson | } |
620 | 4040ab72 | David Gibson | |
621 | 4040ab72 | David Gibson | void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info)
|
622 | 4040ab72 | David Gibson | { |
623 | 4040ab72 | David Gibson | info->qdev.init = spapr_vio_busdev_init; |
624 | 4040ab72 | David Gibson | info->qdev.bus_info = &spapr_vio_bus_info; |
625 | 4040ab72 | David Gibson | |
626 | 4040ab72 | David Gibson | assert(info->qdev.size >= sizeof(VIOsPAPRDevice));
|
627 | 4040ab72 | David Gibson | qdev_register(&info->qdev); |
628 | 4040ab72 | David Gibson | } |
629 | 4040ab72 | David Gibson | |
630 | 00dc738d | David Gibson | static target_ulong h_vio_signal(CPUState *env, sPAPREnvironment *spapr,
|
631 | 00dc738d | David Gibson | target_ulong opcode, |
632 | 00dc738d | David Gibson | target_ulong *args) |
633 | 00dc738d | David Gibson | { |
634 | 00dc738d | David Gibson | target_ulong reg = args[0];
|
635 | 00dc738d | David Gibson | target_ulong mode = args[1];
|
636 | 00dc738d | David Gibson | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
637 | 00dc738d | David Gibson | VIOsPAPRDeviceInfo *info; |
638 | 00dc738d | David Gibson | |
639 | 00dc738d | David Gibson | if (!dev) {
|
640 | 00dc738d | David Gibson | return H_PARAMETER;
|
641 | 00dc738d | David Gibson | } |
642 | 00dc738d | David Gibson | |
643 | 00dc738d | David Gibson | info = (VIOsPAPRDeviceInfo *)dev->qdev.info; |
644 | 00dc738d | David Gibson | |
645 | 00dc738d | David Gibson | if (mode & ~info->signal_mask) {
|
646 | 00dc738d | David Gibson | return H_PARAMETER;
|
647 | 00dc738d | David Gibson | } |
648 | 00dc738d | David Gibson | |
649 | 00dc738d | David Gibson | dev->signal_state = mode; |
650 | 00dc738d | David Gibson | |
651 | 00dc738d | David Gibson | return H_SUCCESS;
|
652 | 00dc738d | David Gibson | } |
653 | 00dc738d | David Gibson | |
654 | 4040ab72 | David Gibson | VIOsPAPRBus *spapr_vio_bus_init(void)
|
655 | 4040ab72 | David Gibson | { |
656 | 4040ab72 | David Gibson | VIOsPAPRBus *bus; |
657 | 4040ab72 | David Gibson | BusState *qbus; |
658 | 4040ab72 | David Gibson | DeviceState *dev; |
659 | 4040ab72 | David Gibson | DeviceInfo *qinfo; |
660 | 4040ab72 | David Gibson | |
661 | 4040ab72 | David Gibson | /* Create bridge device */
|
662 | 4040ab72 | David Gibson | dev = qdev_create(NULL, "spapr-vio-bridge"); |
663 | 4040ab72 | David Gibson | qdev_init_nofail(dev); |
664 | 4040ab72 | David Gibson | |
665 | 4040ab72 | David Gibson | /* Create bus on bridge device */
|
666 | 4040ab72 | David Gibson | |
667 | 4040ab72 | David Gibson | qbus = qbus_create(&spapr_vio_bus_info, dev, "spapr-vio");
|
668 | 4040ab72 | David Gibson | bus = DO_UPCAST(VIOsPAPRBus, bus, qbus); |
669 | 4040ab72 | David Gibson | |
670 | 00dc738d | David Gibson | /* hcall-vio */
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671 | 00dc738d | David Gibson | spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal); |
672 | 00dc738d | David Gibson | |
673 | ee86dfee | David Gibson | /* hcall-tce */
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674 | ee86dfee | David Gibson | spapr_register_hypercall(H_PUT_TCE, h_put_tce); |
675 | ee86dfee | David Gibson | |
676 | b45d63b6 | Ben Herrenschmidt | /* hcall-crq */
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677 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_REG_CRQ, h_reg_crq); |
678 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_FREE_CRQ, h_free_crq); |
679 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_SEND_CRQ, h_send_crq); |
680 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_ENABLE_CRQ, h_enable_crq); |
681 | b45d63b6 | Ben Herrenschmidt | |
682 | 08942ac1 | Ben Herrenschmidt | /* RTAS calls */
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683 | 08942ac1 | Ben Herrenschmidt | spapr_rtas_register("ibm,set-tce-bypass", rtas_set_tce_bypass);
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684 | 08942ac1 | Ben Herrenschmidt | spapr_rtas_register("quiesce", rtas_quiesce);
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685 | 08942ac1 | Ben Herrenschmidt | |
686 | 4040ab72 | David Gibson | for (qinfo = device_info_list; qinfo; qinfo = qinfo->next) {
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687 | 4040ab72 | David Gibson | VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qinfo; |
688 | 4040ab72 | David Gibson | |
689 | 4040ab72 | David Gibson | if (qinfo->bus_info != &spapr_vio_bus_info) {
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690 | 4040ab72 | David Gibson | continue;
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691 | 4040ab72 | David Gibson | } |
692 | 4040ab72 | David Gibson | |
693 | 4040ab72 | David Gibson | if (info->hcalls) {
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694 | 4040ab72 | David Gibson | info->hcalls(bus); |
695 | 4040ab72 | David Gibson | } |
696 | 4040ab72 | David Gibson | } |
697 | 4040ab72 | David Gibson | |
698 | 4040ab72 | David Gibson | return bus;
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699 | 4040ab72 | David Gibson | } |
700 | 4040ab72 | David Gibson | |
701 | 4040ab72 | David Gibson | /* Represents sPAPR hcall VIO devices */
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702 | 4040ab72 | David Gibson | |
703 | 4040ab72 | David Gibson | static int spapr_vio_bridge_init(SysBusDevice *dev) |
704 | 4040ab72 | David Gibson | { |
705 | 4040ab72 | David Gibson | /* nothing */
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706 | 4040ab72 | David Gibson | return 0; |
707 | 4040ab72 | David Gibson | } |
708 | 4040ab72 | David Gibson | |
709 | 4040ab72 | David Gibson | static SysBusDeviceInfo spapr_vio_bridge_info = {
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710 | 4040ab72 | David Gibson | .init = spapr_vio_bridge_init, |
711 | 4040ab72 | David Gibson | .qdev.name = "spapr-vio-bridge",
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712 | 4040ab72 | David Gibson | .qdev.size = sizeof(SysBusDevice),
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713 | 4040ab72 | David Gibson | .qdev.no_user = 1,
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714 | 4040ab72 | David Gibson | }; |
715 | 4040ab72 | David Gibson | |
716 | 4040ab72 | David Gibson | static void spapr_vio_register_devices(void) |
717 | 4040ab72 | David Gibson | { |
718 | 4040ab72 | David Gibson | sysbus_register_withprop(&spapr_vio_bridge_info); |
719 | 4040ab72 | David Gibson | } |
720 | 4040ab72 | David Gibson | |
721 | 4040ab72 | David Gibson | device_init(spapr_vio_register_devices) |
722 | 4040ab72 | David Gibson | |
723 | 4040ab72 | David Gibson | #ifdef CONFIG_FDT
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724 | 4040ab72 | David Gibson | int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt) |
725 | 4040ab72 | David Gibson | { |
726 | 4040ab72 | David Gibson | DeviceState *qdev; |
727 | 4040ab72 | David Gibson | int ret = 0; |
728 | 4040ab72 | David Gibson | |
729 | 4040ab72 | David Gibson | QLIST_FOREACH(qdev, &bus->bus.children, sibling) { |
730 | 4040ab72 | David Gibson | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; |
731 | 4040ab72 | David Gibson | |
732 | 4040ab72 | David Gibson | ret = vio_make_devnode(dev, fdt); |
733 | 4040ab72 | David Gibson | |
734 | 4040ab72 | David Gibson | if (ret < 0) { |
735 | 4040ab72 | David Gibson | return ret;
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736 | 4040ab72 | David Gibson | } |
737 | 4040ab72 | David Gibson | } |
738 | 4040ab72 | David Gibson | |
739 | 4040ab72 | David Gibson | return 0; |
740 | 4040ab72 | David Gibson | } |
741 | 4040ab72 | David Gibson | #endif /* CONFIG_FDT */ |