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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 | d8bb00d6 | Paolo Bonzini | QTAILQ_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 | 5435352c | David Gibson | return dev;
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70 | 4040ab72 | David Gibson | } |
71 | 4040ab72 | David Gibson | } |
72 | 4040ab72 | David Gibson | |
73 | 5435352c | David Gibson | return NULL; |
74 | 4040ab72 | David Gibson | } |
75 | 4040ab72 | David Gibson | |
76 | 1e34d859 | Michael Ellerman | static char *vio_format_dev_name(VIOsPAPRDevice *dev) |
77 | 1e34d859 | Michael Ellerman | { |
78 | 3954d33a | Anthony Liguori | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
79 | 1e34d859 | Michael Ellerman | char *name;
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80 | 1e34d859 | Michael Ellerman | |
81 | 1e34d859 | Michael Ellerman | /* Device tree style name device@reg */
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82 | 3954d33a | Anthony Liguori | if (asprintf(&name, "%s@%x", pc->dt_name, dev->reg) < 0) { |
83 | 1e34d859 | Michael Ellerman | return NULL; |
84 | 1e34d859 | Michael Ellerman | } |
85 | 1e34d859 | Michael Ellerman | |
86 | 1e34d859 | Michael Ellerman | return name;
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87 | 1e34d859 | Michael Ellerman | } |
88 | 1e34d859 | Michael Ellerman | |
89 | 4040ab72 | David Gibson | #ifdef CONFIG_FDT
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90 | 4040ab72 | David Gibson | static int vio_make_devnode(VIOsPAPRDevice *dev, |
91 | 4040ab72 | David Gibson | void *fdt)
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92 | 4040ab72 | David Gibson | { |
93 | 3954d33a | Anthony Liguori | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
94 | 1e34d859 | Michael Ellerman | int vdevice_off, node_off, ret;
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95 | 1e34d859 | Michael Ellerman | char *dt_name;
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96 | 4040ab72 | David Gibson | |
97 | 4040ab72 | David Gibson | vdevice_off = fdt_path_offset(fdt, "/vdevice");
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98 | 4040ab72 | David Gibson | if (vdevice_off < 0) { |
99 | 4040ab72 | David Gibson | return vdevice_off;
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100 | 4040ab72 | David Gibson | } |
101 | 4040ab72 | David Gibson | |
102 | 1e34d859 | Michael Ellerman | dt_name = vio_format_dev_name(dev); |
103 | 1e34d859 | Michael Ellerman | if (!dt_name) {
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104 | 1e34d859 | Michael Ellerman | return -ENOMEM;
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105 | 1e34d859 | Michael Ellerman | } |
106 | 1e34d859 | Michael Ellerman | |
107 | 1e34d859 | Michael Ellerman | node_off = fdt_add_subnode(fdt, vdevice_off, dt_name); |
108 | 1e34d859 | Michael Ellerman | free(dt_name); |
109 | 4040ab72 | David Gibson | if (node_off < 0) { |
110 | 4040ab72 | David Gibson | return node_off;
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111 | 4040ab72 | David Gibson | } |
112 | 4040ab72 | David Gibson | |
113 | 4040ab72 | David Gibson | ret = fdt_setprop_cell(fdt, node_off, "reg", dev->reg);
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114 | 4040ab72 | David Gibson | if (ret < 0) { |
115 | 4040ab72 | David Gibson | return ret;
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116 | 4040ab72 | David Gibson | } |
117 | 4040ab72 | David Gibson | |
118 | 3954d33a | Anthony Liguori | if (pc->dt_type) {
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119 | 4040ab72 | David Gibson | ret = fdt_setprop_string(fdt, node_off, "device_type",
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120 | 3954d33a | Anthony Liguori | pc->dt_type); |
121 | 4040ab72 | David Gibson | if (ret < 0) { |
122 | 4040ab72 | David Gibson | return ret;
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123 | 4040ab72 | David Gibson | } |
124 | 4040ab72 | David Gibson | } |
125 | 4040ab72 | David Gibson | |
126 | 3954d33a | Anthony Liguori | if (pc->dt_compatible) {
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127 | 4040ab72 | David Gibson | ret = fdt_setprop_string(fdt, node_off, "compatible",
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128 | 3954d33a | Anthony Liguori | pc->dt_compatible); |
129 | 4040ab72 | David Gibson | if (ret < 0) { |
130 | 4040ab72 | David Gibson | return ret;
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131 | 4040ab72 | David Gibson | } |
132 | 4040ab72 | David Gibson | } |
133 | 4040ab72 | David Gibson | |
134 | 00dc738d | David Gibson | if (dev->qirq) {
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135 | 00dc738d | David Gibson | uint32_t ints_prop[] = {cpu_to_be32(dev->vio_irq_num), 0};
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136 | 00dc738d | David Gibson | |
137 | 00dc738d | David Gibson | ret = fdt_setprop(fdt, node_off, "interrupts", ints_prop,
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138 | 00dc738d | David Gibson | sizeof(ints_prop));
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139 | 00dc738d | David Gibson | if (ret < 0) { |
140 | 00dc738d | David Gibson | return ret;
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141 | 00dc738d | David Gibson | } |
142 | 00dc738d | David Gibson | } |
143 | 00dc738d | David Gibson | |
144 | ee86dfee | David Gibson | if (dev->rtce_window_size) {
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145 | ee86dfee | David Gibson | uint32_t dma_prop[] = {cpu_to_be32(dev->reg), |
146 | ee86dfee | David Gibson | 0, 0, |
147 | ee86dfee | David Gibson | 0, cpu_to_be32(dev->rtce_window_size)};
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148 | ee86dfee | David Gibson | |
149 | ee86dfee | David Gibson | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2); |
150 | ee86dfee | David Gibson | if (ret < 0) { |
151 | ee86dfee | David Gibson | return ret;
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152 | ee86dfee | David Gibson | } |
153 | ee86dfee | David Gibson | |
154 | ee86dfee | David Gibson | ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2); |
155 | ee86dfee | David Gibson | if (ret < 0) { |
156 | ee86dfee | David Gibson | return ret;
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157 | ee86dfee | David Gibson | } |
158 | ee86dfee | David Gibson | |
159 | ee86dfee | David Gibson | ret = fdt_setprop(fdt, node_off, "ibm,my-dma-window", dma_prop,
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160 | ee86dfee | David Gibson | sizeof(dma_prop));
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161 | ee86dfee | David Gibson | if (ret < 0) { |
162 | ee86dfee | David Gibson | return ret;
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163 | ee86dfee | David Gibson | } |
164 | ee86dfee | David Gibson | } |
165 | ee86dfee | David Gibson | |
166 | 3954d33a | Anthony Liguori | if (pc->devnode) {
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167 | 3954d33a | Anthony Liguori | ret = (pc->devnode)(dev, fdt, node_off); |
168 | 4040ab72 | David Gibson | if (ret < 0) { |
169 | 4040ab72 | David Gibson | return ret;
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170 | 4040ab72 | David Gibson | } |
171 | 4040ab72 | David Gibson | } |
172 | 4040ab72 | David Gibson | |
173 | 4040ab72 | David Gibson | return node_off;
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174 | 4040ab72 | David Gibson | } |
175 | 4040ab72 | David Gibson | #endif /* CONFIG_FDT */ |
176 | 4040ab72 | David Gibson | |
177 | ee86dfee | David Gibson | /*
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178 | ee86dfee | David Gibson | * RTCE handling
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179 | ee86dfee | David Gibson | */
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180 | ee86dfee | David Gibson | |
181 | ee86dfee | David Gibson | static void rtce_init(VIOsPAPRDevice *dev) |
182 | ee86dfee | David Gibson | { |
183 | ee86dfee | David Gibson | size_t size = (dev->rtce_window_size >> SPAPR_VIO_TCE_PAGE_SHIFT) |
184 | ee86dfee | David Gibson | * sizeof(VIOsPAPR_RTCE);
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185 | ee86dfee | David Gibson | |
186 | ee86dfee | David Gibson | if (size) {
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187 | 0f5cb298 | David Gibson | dev->rtce_table = kvmppc_create_spapr_tce(dev->reg, |
188 | 0f5cb298 | David Gibson | dev->rtce_window_size, |
189 | 0f5cb298 | David Gibson | &dev->kvmtce_fd); |
190 | 0f5cb298 | David Gibson | |
191 | 0f5cb298 | David Gibson | if (!dev->rtce_table) {
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192 | 0f5cb298 | David Gibson | dev->rtce_table = g_malloc0(size); |
193 | 0f5cb298 | David Gibson | } |
194 | ee86dfee | David Gibson | } |
195 | ee86dfee | David Gibson | } |
196 | ee86dfee | David Gibson | |
197 | e2684c0b | Andreas Färber | static target_ulong h_put_tce(CPUPPCState *env, sPAPREnvironment *spapr,
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198 | ee86dfee | David Gibson | target_ulong opcode, target_ulong *args) |
199 | ee86dfee | David Gibson | { |
200 | ee86dfee | David Gibson | target_ulong liobn = args[0];
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201 | ee86dfee | David Gibson | target_ulong ioba = args[1];
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202 | ee86dfee | David Gibson | target_ulong tce = args[2];
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203 | ee86dfee | David Gibson | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, liobn); |
204 | ee86dfee | David Gibson | VIOsPAPR_RTCE *rtce; |
205 | ee86dfee | David Gibson | |
206 | ee86dfee | David Gibson | if (!dev) {
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207 | ee86dfee | David Gibson | hcall_dprintf("spapr_vio_put_tce on non-existent LIOBN "
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208 | ee86dfee | David Gibson | TARGET_FMT_lx "\n", liobn);
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209 | ee86dfee | David Gibson | return H_PARAMETER;
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210 | ee86dfee | David Gibson | } |
211 | ee86dfee | David Gibson | |
212 | ee86dfee | David Gibson | ioba &= ~(SPAPR_VIO_TCE_PAGE_SIZE - 1);
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213 | ee86dfee | David Gibson | |
214 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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215 | ee86dfee | David Gibson | fprintf(stderr, "spapr_vio_put_tce on %s ioba 0x" TARGET_FMT_lx
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216 | ee86dfee | David Gibson | " TCE 0x" TARGET_FMT_lx "\n", dev->qdev.id, ioba, tce); |
217 | ee86dfee | David Gibson | #endif
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218 | ee86dfee | David Gibson | |
219 | ee86dfee | David Gibson | if (ioba >= dev->rtce_window_size) {
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220 | ee86dfee | David Gibson | hcall_dprintf("spapr_vio_put_tce on out-of-boards IOBA 0x"
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221 | ee86dfee | David Gibson | TARGET_FMT_lx "\n", ioba);
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222 | ee86dfee | David Gibson | return H_PARAMETER;
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223 | ee86dfee | David Gibson | } |
224 | ee86dfee | David Gibson | |
225 | ee86dfee | David Gibson | rtce = dev->rtce_table + (ioba >> SPAPR_VIO_TCE_PAGE_SHIFT); |
226 | ee86dfee | David Gibson | rtce->tce = tce; |
227 | ee86dfee | David Gibson | |
228 | ee86dfee | David Gibson | return H_SUCCESS;
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229 | ee86dfee | David Gibson | } |
230 | ee86dfee | David Gibson | |
231 | ee86dfee | David Gibson | int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
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232 | ee86dfee | David Gibson | target_ulong len, enum VIOsPAPR_TCEAccess access)
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233 | ee86dfee | David Gibson | { |
234 | ee86dfee | David Gibson | int start, end, i;
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235 | ee86dfee | David Gibson | |
236 | ee86dfee | David Gibson | start = ioba >> SPAPR_VIO_TCE_PAGE_SHIFT; |
237 | ee86dfee | David Gibson | end = (ioba + len - 1) >> SPAPR_VIO_TCE_PAGE_SHIFT;
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238 | ee86dfee | David Gibson | |
239 | ee86dfee | David Gibson | for (i = start; i <= end; i++) {
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240 | ee86dfee | David Gibson | if ((dev->rtce_table[i].tce & access) != access) {
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241 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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242 | ee86dfee | David Gibson | fprintf(stderr, "FAIL on %d\n", i);
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243 | ee86dfee | David Gibson | #endif
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244 | ee86dfee | David Gibson | return -1; |
245 | ee86dfee | David Gibson | } |
246 | ee86dfee | David Gibson | } |
247 | ee86dfee | David Gibson | |
248 | ee86dfee | David Gibson | return 0; |
249 | ee86dfee | David Gibson | } |
250 | ee86dfee | David Gibson | |
251 | ee86dfee | David Gibson | int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr, const void *buf, |
252 | ee86dfee | David Gibson | uint32_t size) |
253 | ee86dfee | David Gibson | { |
254 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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255 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_write taddr=0x%llx size=0x%x\n",
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256 | ee86dfee | David Gibson | (unsigned long long)taddr, size); |
257 | ee86dfee | David Gibson | #endif
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258 | ee86dfee | David Gibson | |
259 | 08942ac1 | Ben Herrenschmidt | /* Check for bypass */
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260 | 08942ac1 | Ben Herrenschmidt | if (dev->flags & VIO_PAPR_FLAG_DMA_BYPASS) {
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261 | 08942ac1 | Ben Herrenschmidt | cpu_physical_memory_write(taddr, buf, size); |
262 | 08942ac1 | Ben Herrenschmidt | return 0; |
263 | 08942ac1 | Ben Herrenschmidt | } |
264 | 08942ac1 | Ben Herrenschmidt | |
265 | ee86dfee | David Gibson | while (size) {
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266 | ee86dfee | David Gibson | uint64_t tce; |
267 | ee86dfee | David Gibson | uint32_t lsize; |
268 | ee86dfee | David Gibson | uint64_t txaddr; |
269 | ee86dfee | David Gibson | |
270 | ee86dfee | David Gibson | /* Check if we are in bound */
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271 | ee86dfee | David Gibson | if (taddr >= dev->rtce_window_size) {
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272 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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273 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_write out of bounds\n");
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274 | ee86dfee | David Gibson | #endif
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275 | ee86dfee | David Gibson | return H_DEST_PARM;
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276 | ee86dfee | David Gibson | } |
277 | ee86dfee | David Gibson | tce = dev->rtce_table[taddr >> SPAPR_VIO_TCE_PAGE_SHIFT].tce; |
278 | ee86dfee | David Gibson | |
279 | ee86dfee | David Gibson | /* How much til end of page ? */
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280 | ee86dfee | David Gibson | lsize = MIN(size, ((~taddr) & SPAPR_VIO_TCE_PAGE_MASK) + 1);
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281 | ee86dfee | David Gibson | |
282 | ee86dfee | David Gibson | /* Check TCE */
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283 | ee86dfee | David Gibson | if (!(tce & 2)) { |
284 | ee86dfee | David Gibson | return H_DEST_PARM;
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285 | ee86dfee | David Gibson | } |
286 | ee86dfee | David Gibson | |
287 | ee86dfee | David Gibson | /* Translate */
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288 | ee86dfee | David Gibson | txaddr = (tce & ~SPAPR_VIO_TCE_PAGE_MASK) | |
289 | ee86dfee | David Gibson | (taddr & SPAPR_VIO_TCE_PAGE_MASK); |
290 | ee86dfee | David Gibson | |
291 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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292 | ee86dfee | David Gibson | fprintf(stderr, " -> write to txaddr=0x%llx, size=0x%x\n",
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293 | ee86dfee | David Gibson | (unsigned long long)txaddr, lsize); |
294 | ee86dfee | David Gibson | #endif
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295 | ee86dfee | David Gibson | |
296 | ee86dfee | David Gibson | /* Do it */
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297 | ee86dfee | David Gibson | cpu_physical_memory_write(txaddr, buf, lsize); |
298 | ee86dfee | David Gibson | buf += lsize; |
299 | ee86dfee | David Gibson | taddr += lsize; |
300 | ee86dfee | David Gibson | size -= lsize; |
301 | ee86dfee | David Gibson | } |
302 | ee86dfee | David Gibson | return 0; |
303 | ee86dfee | David Gibson | } |
304 | ee86dfee | David Gibson | |
305 | ee86dfee | David Gibson | int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size)
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306 | ee86dfee | David Gibson | { |
307 | ee86dfee | David Gibson | /* FIXME: allocating a temp buffer is nasty, but just stepping
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308 | ee86dfee | David Gibson | * through writing zeroes is awkward. This will do for now. */
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309 | ee86dfee | David Gibson | uint8_t zeroes[size]; |
310 | ee86dfee | David Gibson | |
311 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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312 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_zero taddr=0x%llx size=0x%x\n",
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313 | ee86dfee | David Gibson | (unsigned long long)taddr, size); |
314 | ee86dfee | David Gibson | #endif
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315 | ee86dfee | David Gibson | |
316 | ee86dfee | David Gibson | memset(zeroes, 0, size);
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317 | ee86dfee | David Gibson | return spapr_tce_dma_write(dev, taddr, zeroes, size);
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318 | ee86dfee | David Gibson | } |
319 | ee86dfee | David Gibson | |
320 | ee86dfee | David Gibson | void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val)
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321 | ee86dfee | David Gibson | { |
322 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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323 | ee86dfee | David Gibson | } |
324 | ee86dfee | David Gibson | |
325 | ee86dfee | David Gibson | void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val)
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326 | ee86dfee | David Gibson | { |
327 | ee86dfee | David Gibson | val = tswap16(val); |
328 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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329 | ee86dfee | David Gibson | } |
330 | ee86dfee | David Gibson | |
331 | ee86dfee | David Gibson | |
332 | ee86dfee | David Gibson | void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val)
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333 | ee86dfee | David Gibson | { |
334 | ee86dfee | David Gibson | val = tswap32(val); |
335 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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336 | ee86dfee | David Gibson | } |
337 | ee86dfee | David Gibson | |
338 | ee86dfee | David Gibson | void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val)
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339 | ee86dfee | David Gibson | { |
340 | ee86dfee | David Gibson | val = tswap64(val); |
341 | ee86dfee | David Gibson | spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
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342 | ee86dfee | David Gibson | } |
343 | ee86dfee | David Gibson | |
344 | ee86dfee | David Gibson | int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr, void *buf, |
345 | ee86dfee | David Gibson | uint32_t size) |
346 | ee86dfee | David Gibson | { |
347 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
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348 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_write taddr=0x%llx size=0x%x\n",
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349 | ee86dfee | David Gibson | (unsigned long long)taddr, size); |
350 | ee86dfee | David Gibson | #endif
|
351 | ee86dfee | David Gibson | |
352 | 08942ac1 | Ben Herrenschmidt | /* Check for bypass */
|
353 | 08942ac1 | Ben Herrenschmidt | if (dev->flags & VIO_PAPR_FLAG_DMA_BYPASS) {
|
354 | 08942ac1 | Ben Herrenschmidt | cpu_physical_memory_read(taddr, buf, size); |
355 | 08942ac1 | Ben Herrenschmidt | return 0; |
356 | 08942ac1 | Ben Herrenschmidt | } |
357 | 08942ac1 | Ben Herrenschmidt | |
358 | ee86dfee | David Gibson | while (size) {
|
359 | ee86dfee | David Gibson | uint64_t tce; |
360 | ee86dfee | David Gibson | uint32_t lsize; |
361 | ee86dfee | David Gibson | uint64_t txaddr; |
362 | ee86dfee | David Gibson | |
363 | ee86dfee | David Gibson | /* Check if we are in bound */
|
364 | ee86dfee | David Gibson | if (taddr >= dev->rtce_window_size) {
|
365 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
|
366 | ee86dfee | David Gibson | fprintf(stderr, "spapr_tce_dma_read out of bounds\n");
|
367 | ee86dfee | David Gibson | #endif
|
368 | ee86dfee | David Gibson | return H_DEST_PARM;
|
369 | ee86dfee | David Gibson | } |
370 | ee86dfee | David Gibson | tce = dev->rtce_table[taddr >> SPAPR_VIO_TCE_PAGE_SHIFT].tce; |
371 | ee86dfee | David Gibson | |
372 | ee86dfee | David Gibson | /* How much til end of page ? */
|
373 | ee86dfee | David Gibson | lsize = MIN(size, ((~taddr) & SPAPR_VIO_TCE_PAGE_MASK) + 1);
|
374 | ee86dfee | David Gibson | |
375 | ee86dfee | David Gibson | /* Check TCE */
|
376 | ee86dfee | David Gibson | if (!(tce & 1)) { |
377 | ee86dfee | David Gibson | return H_DEST_PARM;
|
378 | ee86dfee | David Gibson | } |
379 | ee86dfee | David Gibson | |
380 | ee86dfee | David Gibson | /* Translate */
|
381 | ee86dfee | David Gibson | txaddr = (tce & ~SPAPR_VIO_TCE_PAGE_MASK) | |
382 | ee86dfee | David Gibson | (taddr & SPAPR_VIO_TCE_PAGE_MASK); |
383 | ee86dfee | David Gibson | |
384 | ee86dfee | David Gibson | #ifdef DEBUG_TCE
|
385 | ee86dfee | David Gibson | fprintf(stderr, " -> write to txaddr=0x%llx, size=0x%x\n",
|
386 | ee86dfee | David Gibson | (unsigned long long)txaddr, lsize); |
387 | ee86dfee | David Gibson | #endif
|
388 | ee86dfee | David Gibson | /* Do it */
|
389 | ee86dfee | David Gibson | cpu_physical_memory_read(txaddr, buf, lsize); |
390 | ee86dfee | David Gibson | buf += lsize; |
391 | ee86dfee | David Gibson | taddr += lsize; |
392 | ee86dfee | David Gibson | size -= lsize; |
393 | ee86dfee | David Gibson | } |
394 | ee86dfee | David Gibson | return H_SUCCESS;
|
395 | ee86dfee | David Gibson | } |
396 | ee86dfee | David Gibson | |
397 | ee86dfee | David Gibson | uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr) |
398 | ee86dfee | David Gibson | { |
399 | ee86dfee | David Gibson | uint64_t val; |
400 | ee86dfee | David Gibson | |
401 | ee86dfee | David Gibson | spapr_tce_dma_read(dev, taddr, &val, sizeof(val));
|
402 | ee86dfee | David Gibson | return tswap64(val);
|
403 | ee86dfee | David Gibson | } |
404 | ee86dfee | David Gibson | |
405 | b45d63b6 | Ben Herrenschmidt | /*
|
406 | b45d63b6 | Ben Herrenschmidt | * CRQ handling
|
407 | b45d63b6 | Ben Herrenschmidt | */
|
408 | e2684c0b | Andreas Färber | static target_ulong h_reg_crq(CPUPPCState *env, sPAPREnvironment *spapr,
|
409 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
410 | b45d63b6 | Ben Herrenschmidt | { |
411 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
412 | b45d63b6 | Ben Herrenschmidt | target_ulong queue_addr = args[1];
|
413 | b45d63b6 | Ben Herrenschmidt | target_ulong queue_len = args[2];
|
414 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
415 | b45d63b6 | Ben Herrenschmidt | |
416 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
417 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_reg_crq on non-existent unit 0x"
|
418 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
419 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
420 | b45d63b6 | Ben Herrenschmidt | } |
421 | b45d63b6 | Ben Herrenschmidt | |
422 | b45d63b6 | Ben Herrenschmidt | /* We can't grok a queue size bigger than 256M for now */
|
423 | b45d63b6 | Ben Herrenschmidt | if (queue_len < 0x1000 || queue_len > 0x10000000) { |
424 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_reg_crq, queue size too small or too big (0x%llx)\n",
|
425 | b45d63b6 | Ben Herrenschmidt | (unsigned long long)queue_len); |
426 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
427 | b45d63b6 | Ben Herrenschmidt | } |
428 | b45d63b6 | Ben Herrenschmidt | |
429 | b45d63b6 | Ben Herrenschmidt | /* Check queue alignment */
|
430 | b45d63b6 | Ben Herrenschmidt | if (queue_addr & 0xfff) { |
431 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_reg_crq, queue not aligned (0x%llx)\n",
|
432 | b45d63b6 | Ben Herrenschmidt | (unsigned long long)queue_addr); |
433 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
434 | b45d63b6 | Ben Herrenschmidt | } |
435 | b45d63b6 | Ben Herrenschmidt | |
436 | b45d63b6 | Ben Herrenschmidt | /* Check if device supports CRQs */
|
437 | b45d63b6 | Ben Herrenschmidt | if (!dev->crq.SendFunc) {
|
438 | b45d63b6 | Ben Herrenschmidt | return H_NOT_FOUND;
|
439 | b45d63b6 | Ben Herrenschmidt | } |
440 | b45d63b6 | Ben Herrenschmidt | |
441 | b45d63b6 | Ben Herrenschmidt | |
442 | b45d63b6 | Ben Herrenschmidt | /* Already a queue ? */
|
443 | b45d63b6 | Ben Herrenschmidt | if (dev->crq.qsize) {
|
444 | b45d63b6 | Ben Herrenschmidt | return H_RESOURCE;
|
445 | b45d63b6 | Ben Herrenschmidt | } |
446 | b45d63b6 | Ben Herrenschmidt | dev->crq.qladdr = queue_addr; |
447 | b45d63b6 | Ben Herrenschmidt | dev->crq.qsize = queue_len; |
448 | b45d63b6 | Ben Herrenschmidt | dev->crq.qnext = 0;
|
449 | b45d63b6 | Ben Herrenschmidt | |
450 | b45d63b6 | Ben Herrenschmidt | dprintf("CRQ for dev 0x" TARGET_FMT_lx " registered at 0x" |
451 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "/0x" TARGET_FMT_lx "\n", |
452 | b45d63b6 | Ben Herrenschmidt | reg, queue_addr, queue_len); |
453 | b45d63b6 | Ben Herrenschmidt | return H_SUCCESS;
|
454 | b45d63b6 | Ben Herrenschmidt | } |
455 | b45d63b6 | Ben Herrenschmidt | |
456 | e2684c0b | Andreas Färber | static target_ulong h_free_crq(CPUPPCState *env, sPAPREnvironment *spapr,
|
457 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
458 | b45d63b6 | Ben Herrenschmidt | { |
459 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
460 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
461 | b45d63b6 | Ben Herrenschmidt | |
462 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
463 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_free_crq on non-existent unit 0x"
|
464 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
465 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
466 | b45d63b6 | Ben Herrenschmidt | } |
467 | b45d63b6 | Ben Herrenschmidt | |
468 | b45d63b6 | Ben Herrenschmidt | dev->crq.qladdr = 0;
|
469 | b45d63b6 | Ben Herrenschmidt | dev->crq.qsize = 0;
|
470 | b45d63b6 | Ben Herrenschmidt | dev->crq.qnext = 0;
|
471 | b45d63b6 | Ben Herrenschmidt | |
472 | b45d63b6 | Ben Herrenschmidt | dprintf("CRQ for dev 0x" TARGET_FMT_lx " freed\n", reg); |
473 | b45d63b6 | Ben Herrenschmidt | |
474 | b45d63b6 | Ben Herrenschmidt | return H_SUCCESS;
|
475 | b45d63b6 | Ben Herrenschmidt | } |
476 | b45d63b6 | Ben Herrenschmidt | |
477 | e2684c0b | Andreas Färber | static target_ulong h_send_crq(CPUPPCState *env, sPAPREnvironment *spapr,
|
478 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
479 | b45d63b6 | Ben Herrenschmidt | { |
480 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
481 | b45d63b6 | Ben Herrenschmidt | target_ulong msg_hi = args[1];
|
482 | b45d63b6 | Ben Herrenschmidt | target_ulong msg_lo = args[2];
|
483 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
484 | b45d63b6 | Ben Herrenschmidt | uint64_t crq_mangle[2];
|
485 | b45d63b6 | Ben Herrenschmidt | |
486 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
487 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_send_crq on non-existent unit 0x"
|
488 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
489 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
490 | b45d63b6 | Ben Herrenschmidt | } |
491 | b45d63b6 | Ben Herrenschmidt | crq_mangle[0] = cpu_to_be64(msg_hi);
|
492 | b45d63b6 | Ben Herrenschmidt | crq_mangle[1] = cpu_to_be64(msg_lo);
|
493 | b45d63b6 | Ben Herrenschmidt | |
494 | b45d63b6 | Ben Herrenschmidt | if (dev->crq.SendFunc) {
|
495 | b45d63b6 | Ben Herrenschmidt | return dev->crq.SendFunc(dev, (uint8_t *)crq_mangle);
|
496 | b45d63b6 | Ben Herrenschmidt | } |
497 | b45d63b6 | Ben Herrenschmidt | |
498 | b45d63b6 | Ben Herrenschmidt | return H_HARDWARE;
|
499 | b45d63b6 | Ben Herrenschmidt | } |
500 | b45d63b6 | Ben Herrenschmidt | |
501 | e2684c0b | Andreas Färber | static target_ulong h_enable_crq(CPUPPCState *env, sPAPREnvironment *spapr,
|
502 | b45d63b6 | Ben Herrenschmidt | target_ulong opcode, target_ulong *args) |
503 | b45d63b6 | Ben Herrenschmidt | { |
504 | b45d63b6 | Ben Herrenschmidt | target_ulong reg = args[0];
|
505 | b45d63b6 | Ben Herrenschmidt | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
506 | b45d63b6 | Ben Herrenschmidt | |
507 | b45d63b6 | Ben Herrenschmidt | if (!dev) {
|
508 | b45d63b6 | Ben Herrenschmidt | hcall_dprintf("h_enable_crq on non-existent unit 0x"
|
509 | b45d63b6 | Ben Herrenschmidt | TARGET_FMT_lx "\n", reg);
|
510 | b45d63b6 | Ben Herrenschmidt | return H_PARAMETER;
|
511 | b45d63b6 | Ben Herrenschmidt | } |
512 | b45d63b6 | Ben Herrenschmidt | |
513 | b45d63b6 | Ben Herrenschmidt | return 0; |
514 | b45d63b6 | Ben Herrenschmidt | } |
515 | b45d63b6 | Ben Herrenschmidt | |
516 | b45d63b6 | Ben Herrenschmidt | /* Returns negative error, 0 success, or positive: queue full */
|
517 | b45d63b6 | Ben Herrenschmidt | int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq)
|
518 | b45d63b6 | Ben Herrenschmidt | { |
519 | b45d63b6 | Ben Herrenschmidt | int rc;
|
520 | b45d63b6 | Ben Herrenschmidt | uint8_t byte; |
521 | b45d63b6 | Ben Herrenschmidt | |
522 | b45d63b6 | Ben Herrenschmidt | if (!dev->crq.qsize) {
|
523 | b45d63b6 | Ben Herrenschmidt | fprintf(stderr, "spapr_vio_send_creq on uninitialized queue\n");
|
524 | b45d63b6 | Ben Herrenschmidt | return -1; |
525 | b45d63b6 | Ben Herrenschmidt | } |
526 | b45d63b6 | Ben Herrenschmidt | |
527 | b45d63b6 | Ben Herrenschmidt | /* Maybe do a fast path for KVM just writing to the pages */
|
528 | b45d63b6 | Ben Herrenschmidt | rc = spapr_tce_dma_read(dev, dev->crq.qladdr + dev->crq.qnext, &byte, 1);
|
529 | b45d63b6 | Ben Herrenschmidt | if (rc) {
|
530 | b45d63b6 | Ben Herrenschmidt | return rc;
|
531 | b45d63b6 | Ben Herrenschmidt | } |
532 | b45d63b6 | Ben Herrenschmidt | if (byte != 0) { |
533 | b45d63b6 | Ben Herrenschmidt | return 1; |
534 | b45d63b6 | Ben Herrenschmidt | } |
535 | b45d63b6 | Ben Herrenschmidt | |
536 | b45d63b6 | Ben Herrenschmidt | rc = spapr_tce_dma_write(dev, dev->crq.qladdr + dev->crq.qnext + 8,
|
537 | b45d63b6 | Ben Herrenschmidt | &crq[8], 8); |
538 | b45d63b6 | Ben Herrenschmidt | if (rc) {
|
539 | b45d63b6 | Ben Herrenschmidt | return rc;
|
540 | b45d63b6 | Ben Herrenschmidt | } |
541 | b45d63b6 | Ben Herrenschmidt | |
542 | b45d63b6 | Ben Herrenschmidt | kvmppc_eieio(); |
543 | b45d63b6 | Ben Herrenschmidt | |
544 | b45d63b6 | Ben Herrenschmidt | rc = spapr_tce_dma_write(dev, dev->crq.qladdr + dev->crq.qnext, crq, 8);
|
545 | b45d63b6 | Ben Herrenschmidt | if (rc) {
|
546 | b45d63b6 | Ben Herrenschmidt | return rc;
|
547 | b45d63b6 | Ben Herrenschmidt | } |
548 | b45d63b6 | Ben Herrenschmidt | |
549 | b45d63b6 | Ben Herrenschmidt | dev->crq.qnext = (dev->crq.qnext + 16) % dev->crq.qsize;
|
550 | b45d63b6 | Ben Herrenschmidt | |
551 | b45d63b6 | Ben Herrenschmidt | if (dev->signal_state & 1) { |
552 | b45d63b6 | Ben Herrenschmidt | qemu_irq_pulse(dev->qirq); |
553 | b45d63b6 | Ben Herrenschmidt | } |
554 | b45d63b6 | Ben Herrenschmidt | |
555 | b45d63b6 | Ben Herrenschmidt | return 0; |
556 | b45d63b6 | Ben Herrenschmidt | } |
557 | b45d63b6 | Ben Herrenschmidt | |
558 | 08942ac1 | Ben Herrenschmidt | /* "quiesce" handling */
|
559 | 08942ac1 | Ben Herrenschmidt | |
560 | 08942ac1 | Ben Herrenschmidt | static void spapr_vio_quiesce_one(VIOsPAPRDevice *dev) |
561 | 08942ac1 | Ben Herrenschmidt | { |
562 | 08942ac1 | Ben Herrenschmidt | dev->flags &= ~VIO_PAPR_FLAG_DMA_BYPASS; |
563 | 08942ac1 | Ben Herrenschmidt | |
564 | 08942ac1 | Ben Herrenschmidt | if (dev->rtce_table) {
|
565 | 08942ac1 | Ben Herrenschmidt | size_t size = (dev->rtce_window_size >> SPAPR_VIO_TCE_PAGE_SHIFT) |
566 | 08942ac1 | Ben Herrenschmidt | * sizeof(VIOsPAPR_RTCE);
|
567 | 08942ac1 | Ben Herrenschmidt | memset(dev->rtce_table, 0, size);
|
568 | 08942ac1 | Ben Herrenschmidt | } |
569 | 08942ac1 | Ben Herrenschmidt | |
570 | 08942ac1 | Ben Herrenschmidt | dev->crq.qladdr = 0;
|
571 | 08942ac1 | Ben Herrenschmidt | dev->crq.qsize = 0;
|
572 | 08942ac1 | Ben Herrenschmidt | dev->crq.qnext = 0;
|
573 | 08942ac1 | Ben Herrenschmidt | } |
574 | 08942ac1 | Ben Herrenschmidt | |
575 | 08942ac1 | Ben Herrenschmidt | static void rtas_set_tce_bypass(sPAPREnvironment *spapr, uint32_t token, |
576 | 08942ac1 | Ben Herrenschmidt | uint32_t nargs, target_ulong args, |
577 | 08942ac1 | Ben Herrenschmidt | uint32_t nret, target_ulong rets) |
578 | 08942ac1 | Ben Herrenschmidt | { |
579 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRBus *bus = spapr->vio_bus; |
580 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRDevice *dev; |
581 | 08942ac1 | Ben Herrenschmidt | uint32_t unit, enable; |
582 | 08942ac1 | Ben Herrenschmidt | |
583 | 08942ac1 | Ben Herrenschmidt | if (nargs != 2) { |
584 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, -3); |
585 | 08942ac1 | Ben Herrenschmidt | return;
|
586 | 08942ac1 | Ben Herrenschmidt | } |
587 | 08942ac1 | Ben Herrenschmidt | unit = rtas_ld(args, 0);
|
588 | 08942ac1 | Ben Herrenschmidt | enable = rtas_ld(args, 1);
|
589 | 08942ac1 | Ben Herrenschmidt | dev = spapr_vio_find_by_reg(bus, unit); |
590 | 08942ac1 | Ben Herrenschmidt | if (!dev) {
|
591 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, -3); |
592 | 08942ac1 | Ben Herrenschmidt | return;
|
593 | 08942ac1 | Ben Herrenschmidt | } |
594 | 08942ac1 | Ben Herrenschmidt | if (enable) {
|
595 | 08942ac1 | Ben Herrenschmidt | dev->flags |= VIO_PAPR_FLAG_DMA_BYPASS; |
596 | 08942ac1 | Ben Herrenschmidt | } else {
|
597 | 08942ac1 | Ben Herrenschmidt | dev->flags &= ~VIO_PAPR_FLAG_DMA_BYPASS; |
598 | 08942ac1 | Ben Herrenschmidt | } |
599 | 08942ac1 | Ben Herrenschmidt | |
600 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, 0); |
601 | 08942ac1 | Ben Herrenschmidt | } |
602 | 08942ac1 | Ben Herrenschmidt | |
603 | 08942ac1 | Ben Herrenschmidt | static void rtas_quiesce(sPAPREnvironment *spapr, uint32_t token, |
604 | 08942ac1 | Ben Herrenschmidt | uint32_t nargs, target_ulong args, |
605 | 08942ac1 | Ben Herrenschmidt | uint32_t nret, target_ulong rets) |
606 | 08942ac1 | Ben Herrenschmidt | { |
607 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRBus *bus = spapr->vio_bus; |
608 | 08942ac1 | Ben Herrenschmidt | DeviceState *qdev; |
609 | 08942ac1 | Ben Herrenschmidt | VIOsPAPRDevice *dev = NULL;
|
610 | 08942ac1 | Ben Herrenschmidt | |
611 | 08942ac1 | Ben Herrenschmidt | if (nargs != 0) { |
612 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, -3); |
613 | 08942ac1 | Ben Herrenschmidt | return;
|
614 | 08942ac1 | Ben Herrenschmidt | } |
615 | 08942ac1 | Ben Herrenschmidt | |
616 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) { |
617 | 08942ac1 | Ben Herrenschmidt | dev = (VIOsPAPRDevice *)qdev; |
618 | 08942ac1 | Ben Herrenschmidt | spapr_vio_quiesce_one(dev); |
619 | 08942ac1 | Ben Herrenschmidt | } |
620 | 08942ac1 | Ben Herrenschmidt | |
621 | 08942ac1 | Ben Herrenschmidt | rtas_st(rets, 0, 0); |
622 | 08942ac1 | Ben Herrenschmidt | } |
623 | 08942ac1 | Ben Herrenschmidt | |
624 | 3954d33a | Anthony Liguori | static int spapr_vio_check_reg(VIOsPAPRDevice *sdev) |
625 | 9fc380d3 | Michael Ellerman | { |
626 | 9fc380d3 | Michael Ellerman | VIOsPAPRDevice *other_sdev; |
627 | 9fc380d3 | Michael Ellerman | DeviceState *qdev; |
628 | 9fc380d3 | Michael Ellerman | VIOsPAPRBus *sbus; |
629 | 9fc380d3 | Michael Ellerman | |
630 | 9fc380d3 | Michael Ellerman | sbus = DO_UPCAST(VIOsPAPRBus, bus, sdev->qdev.parent_bus); |
631 | 9fc380d3 | Michael Ellerman | |
632 | 9fc380d3 | Michael Ellerman | /*
|
633 | 9fc380d3 | Michael Ellerman | * Check two device aren't given clashing addresses by the user (or some
|
634 | 9fc380d3 | Michael Ellerman | * other mechanism). We have to open code this because we have to check
|
635 | 9fc380d3 | Michael Ellerman | * for matches with devices other than us.
|
636 | 9fc380d3 | Michael Ellerman | */
|
637 | 9fc380d3 | Michael Ellerman | QTAILQ_FOREACH(qdev, &sbus->bus.children, sibling) { |
638 | 9fc380d3 | Michael Ellerman | other_sdev = DO_UPCAST(VIOsPAPRDevice, qdev, qdev); |
639 | 9fc380d3 | Michael Ellerman | |
640 | 9fc380d3 | Michael Ellerman | if (other_sdev != sdev && other_sdev->reg == sdev->reg) {
|
641 | 9fc380d3 | Michael Ellerman | fprintf(stderr, "vio: %s and %s devices conflict at address %#x\n",
|
642 | 3954d33a | Anthony Liguori | object_get_typename(OBJECT(sdev)), |
643 | 3954d33a | Anthony Liguori | object_get_typename(OBJECT(qdev)), |
644 | 3954d33a | Anthony Liguori | sdev->reg); |
645 | 9fc380d3 | Michael Ellerman | return -EEXIST;
|
646 | 9fc380d3 | Michael Ellerman | } |
647 | 9fc380d3 | Michael Ellerman | } |
648 | 9fc380d3 | Michael Ellerman | |
649 | 9fc380d3 | Michael Ellerman | return 0; |
650 | 9fc380d3 | Michael Ellerman | } |
651 | 9fc380d3 | Michael Ellerman | |
652 | d307af79 | Anthony Liguori | static int spapr_vio_busdev_init(DeviceState *qdev) |
653 | 4040ab72 | David Gibson | { |
654 | 4040ab72 | David Gibson | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev; |
655 | 3954d33a | Anthony Liguori | VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
656 | 4040ab72 | David Gibson | char *id;
|
657 | 9fc380d3 | Michael Ellerman | int ret;
|
658 | 9fc380d3 | Michael Ellerman | |
659 | 3954d33a | Anthony Liguori | ret = spapr_vio_check_reg(dev); |
660 | 9fc380d3 | Michael Ellerman | if (ret) {
|
661 | 9fc380d3 | Michael Ellerman | return ret;
|
662 | 9fc380d3 | Michael Ellerman | } |
663 | 4040ab72 | David Gibson | |
664 | 1e34d859 | Michael Ellerman | /* Don't overwrite ids assigned on the command line */
|
665 | 1e34d859 | Michael Ellerman | if (!dev->qdev.id) {
|
666 | 1e34d859 | Michael Ellerman | id = vio_format_dev_name(dev); |
667 | 1e34d859 | Michael Ellerman | if (!id) {
|
668 | 1e34d859 | Michael Ellerman | return -1; |
669 | 1e34d859 | Michael Ellerman | } |
670 | 1e34d859 | Michael Ellerman | dev->qdev.id = id; |
671 | 4040ab72 | David Gibson | } |
672 | 4040ab72 | David Gibson | |
673 | d07fee7e | David Gibson | dev->qirq = spapr_allocate_msi(dev->vio_irq_num, &dev->vio_irq_num); |
674 | e6c866d4 | David Gibson | if (!dev->qirq) {
|
675 | e6c866d4 | David Gibson | return -1; |
676 | 416343b1 | Paolo Bonzini | } |
677 | 4040ab72 | David Gibson | |
678 | ee86dfee | David Gibson | rtce_init(dev); |
679 | ee86dfee | David Gibson | |
680 | 3954d33a | Anthony Liguori | return pc->init(dev);
|
681 | 4040ab72 | David Gibson | } |
682 | 4040ab72 | David Gibson | |
683 | e2684c0b | Andreas Färber | static target_ulong h_vio_signal(CPUPPCState *env, sPAPREnvironment *spapr,
|
684 | 00dc738d | David Gibson | target_ulong opcode, |
685 | 00dc738d | David Gibson | target_ulong *args) |
686 | 00dc738d | David Gibson | { |
687 | 00dc738d | David Gibson | target_ulong reg = args[0];
|
688 | 00dc738d | David Gibson | target_ulong mode = args[1];
|
689 | 00dc738d | David Gibson | VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg); |
690 | 3954d33a | Anthony Liguori | VIOsPAPRDeviceClass *pc; |
691 | 00dc738d | David Gibson | |
692 | 00dc738d | David Gibson | if (!dev) {
|
693 | 00dc738d | David Gibson | return H_PARAMETER;
|
694 | 00dc738d | David Gibson | } |
695 | 00dc738d | David Gibson | |
696 | 3954d33a | Anthony Liguori | pc = VIO_SPAPR_DEVICE_GET_CLASS(dev); |
697 | 00dc738d | David Gibson | |
698 | 3954d33a | Anthony Liguori | if (mode & ~pc->signal_mask) {
|
699 | 00dc738d | David Gibson | return H_PARAMETER;
|
700 | 00dc738d | David Gibson | } |
701 | 00dc738d | David Gibson | |
702 | 00dc738d | David Gibson | dev->signal_state = mode; |
703 | 00dc738d | David Gibson | |
704 | 00dc738d | David Gibson | return H_SUCCESS;
|
705 | 00dc738d | David Gibson | } |
706 | 00dc738d | David Gibson | |
707 | 4040ab72 | David Gibson | VIOsPAPRBus *spapr_vio_bus_init(void)
|
708 | 4040ab72 | David Gibson | { |
709 | 4040ab72 | David Gibson | VIOsPAPRBus *bus; |
710 | 4040ab72 | David Gibson | BusState *qbus; |
711 | 4040ab72 | David Gibson | DeviceState *dev; |
712 | 4040ab72 | David Gibson | |
713 | 4040ab72 | David Gibson | /* Create bridge device */
|
714 | 4040ab72 | David Gibson | dev = qdev_create(NULL, "spapr-vio-bridge"); |
715 | 4040ab72 | David Gibson | qdev_init_nofail(dev); |
716 | 4040ab72 | David Gibson | |
717 | 4040ab72 | David Gibson | /* Create bus on bridge device */
|
718 | 4040ab72 | David Gibson | |
719 | 4040ab72 | David Gibson | qbus = qbus_create(&spapr_vio_bus_info, dev, "spapr-vio");
|
720 | 4040ab72 | David Gibson | bus = DO_UPCAST(VIOsPAPRBus, bus, qbus); |
721 | 4040ab72 | David Gibson | |
722 | 00dc738d | David Gibson | /* hcall-vio */
|
723 | 00dc738d | David Gibson | spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal); |
724 | 00dc738d | David Gibson | |
725 | ee86dfee | David Gibson | /* hcall-tce */
|
726 | ee86dfee | David Gibson | spapr_register_hypercall(H_PUT_TCE, h_put_tce); |
727 | ee86dfee | David Gibson | |
728 | b45d63b6 | Ben Herrenschmidt | /* hcall-crq */
|
729 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_REG_CRQ, h_reg_crq); |
730 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_FREE_CRQ, h_free_crq); |
731 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_SEND_CRQ, h_send_crq); |
732 | b45d63b6 | Ben Herrenschmidt | spapr_register_hypercall(H_ENABLE_CRQ, h_enable_crq); |
733 | b45d63b6 | Ben Herrenschmidt | |
734 | 08942ac1 | Ben Herrenschmidt | /* RTAS calls */
|
735 | 08942ac1 | Ben Herrenschmidt | spapr_rtas_register("ibm,set-tce-bypass", rtas_set_tce_bypass);
|
736 | 08942ac1 | Ben Herrenschmidt | spapr_rtas_register("quiesce", rtas_quiesce);
|
737 | 08942ac1 | Ben Herrenschmidt | |
738 | 4040ab72 | David Gibson | return bus;
|
739 | 4040ab72 | David Gibson | } |
740 | 4040ab72 | David Gibson | |
741 | 4040ab72 | David Gibson | /* Represents sPAPR hcall VIO devices */
|
742 | 4040ab72 | David Gibson | |
743 | 4040ab72 | David Gibson | static int spapr_vio_bridge_init(SysBusDevice *dev) |
744 | 4040ab72 | David Gibson | { |
745 | 4040ab72 | David Gibson | /* nothing */
|
746 | 4040ab72 | David Gibson | return 0; |
747 | 4040ab72 | David Gibson | } |
748 | 4040ab72 | David Gibson | |
749 | 999e12bb | Anthony Liguori | static void spapr_vio_bridge_class_init(ObjectClass *klass, void *data) |
750 | 999e12bb | Anthony Liguori | { |
751 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
752 | 39bffca2 | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
753 | 999e12bb | Anthony Liguori | |
754 | 39bffca2 | Anthony Liguori | k->init = spapr_vio_bridge_init; |
755 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
756 | 999e12bb | Anthony Liguori | } |
757 | 999e12bb | Anthony Liguori | |
758 | 39bffca2 | Anthony Liguori | static TypeInfo spapr_vio_bridge_info = {
|
759 | 39bffca2 | Anthony Liguori | .name = "spapr-vio-bridge",
|
760 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
761 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(SysBusDevice),
|
762 | 39bffca2 | Anthony Liguori | .class_init = spapr_vio_bridge_class_init, |
763 | 4040ab72 | David Gibson | }; |
764 | 4040ab72 | David Gibson | |
765 | 39bffca2 | Anthony Liguori | static void vio_spapr_device_class_init(ObjectClass *klass, void *data) |
766 | 39bffca2 | Anthony Liguori | { |
767 | 39bffca2 | Anthony Liguori | DeviceClass *k = DEVICE_CLASS(klass); |
768 | 39bffca2 | Anthony Liguori | k->init = spapr_vio_busdev_init; |
769 | 39bffca2 | Anthony Liguori | k->bus_info = &spapr_vio_bus_info; |
770 | 39bffca2 | Anthony Liguori | } |
771 | 39bffca2 | Anthony Liguori | |
772 | 3954d33a | Anthony Liguori | static TypeInfo spapr_vio_type_info = {
|
773 | 3954d33a | Anthony Liguori | .name = TYPE_VIO_SPAPR_DEVICE, |
774 | 3954d33a | Anthony Liguori | .parent = TYPE_DEVICE, |
775 | 3954d33a | Anthony Liguori | .instance_size = sizeof(VIOsPAPRDevice),
|
776 | 3954d33a | Anthony Liguori | .abstract = true,
|
777 | 3954d33a | Anthony Liguori | .class_size = sizeof(VIOsPAPRDeviceClass),
|
778 | 39bffca2 | Anthony Liguori | .class_init = vio_spapr_device_class_init, |
779 | 3954d33a | Anthony Liguori | }; |
780 | 3954d33a | Anthony Liguori | |
781 | 83f7d43a | Andreas Färber | static void spapr_vio_register_types(void) |
782 | 4040ab72 | David Gibson | { |
783 | 39bffca2 | Anthony Liguori | type_register_static(&spapr_vio_bridge_info); |
784 | 3954d33a | Anthony Liguori | type_register_static(&spapr_vio_type_info); |
785 | 4040ab72 | David Gibson | } |
786 | 4040ab72 | David Gibson | |
787 | 83f7d43a | Andreas Färber | type_init(spapr_vio_register_types) |
788 | 4040ab72 | David Gibson | |
789 | 4040ab72 | David Gibson | #ifdef CONFIG_FDT
|
790 | 05c19438 | David Gibson | static int compare_reg(const void *p1, const void *p2) |
791 | 05c19438 | David Gibson | { |
792 | 05c19438 | David Gibson | VIOsPAPRDevice const *dev1, *dev2;
|
793 | 05c19438 | David Gibson | |
794 | 05c19438 | David Gibson | dev1 = (VIOsPAPRDevice *)*(DeviceState **)p1; |
795 | 05c19438 | David Gibson | dev2 = (VIOsPAPRDevice *)*(DeviceState **)p2; |
796 | 05c19438 | David Gibson | |
797 | 05c19438 | David Gibson | if (dev1->reg < dev2->reg) {
|
798 | 05c19438 | David Gibson | return -1; |
799 | 05c19438 | David Gibson | } |
800 | 05c19438 | David Gibson | if (dev1->reg == dev2->reg) {
|
801 | 05c19438 | David Gibson | return 0; |
802 | 05c19438 | David Gibson | } |
803 | 05c19438 | David Gibson | |
804 | 05c19438 | David Gibson | /* dev1->reg > dev2->reg */
|
805 | 05c19438 | David Gibson | return 1; |
806 | 05c19438 | David Gibson | } |
807 | 05c19438 | David Gibson | |
808 | 4040ab72 | David Gibson | int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt) |
809 | 4040ab72 | David Gibson | { |
810 | 05c19438 | David Gibson | DeviceState *qdev, **qdevs; |
811 | 05c19438 | David Gibson | int i, num, ret = 0; |
812 | 4040ab72 | David Gibson | |
813 | 05c19438 | David Gibson | /* Count qdevs on the bus list */
|
814 | 05c19438 | David Gibson | num = 0;
|
815 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) { |
816 | 05c19438 | David Gibson | num++; |
817 | 05c19438 | David Gibson | } |
818 | 05c19438 | David Gibson | |
819 | 05c19438 | David Gibson | /* Copy out into an array of pointers */
|
820 | 05c19438 | David Gibson | qdevs = g_malloc(sizeof(qdev) * num);
|
821 | 05c19438 | David Gibson | num = 0;
|
822 | 05c19438 | David Gibson | QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) { |
823 | 05c19438 | David Gibson | qdevs[num++] = qdev; |
824 | 05c19438 | David Gibson | } |
825 | 05c19438 | David Gibson | |
826 | 05c19438 | David Gibson | /* Sort the array */
|
827 | 05c19438 | David Gibson | qsort(qdevs, num, sizeof(qdev), compare_reg);
|
828 | 05c19438 | David Gibson | |
829 | 05c19438 | David Gibson | /* Hack alert. Give the devices to libfdt in reverse order, we happen
|
830 | 05c19438 | David Gibson | * to know that will mean they are in forward order in the tree. */
|
831 | 05c19438 | David Gibson | for (i = num - 1; i >= 0; i--) { |
832 | 05c19438 | David Gibson | VIOsPAPRDevice *dev = (VIOsPAPRDevice *)(qdevs[i]); |
833 | 4040ab72 | David Gibson | |
834 | 4040ab72 | David Gibson | ret = vio_make_devnode(dev, fdt); |
835 | 4040ab72 | David Gibson | |
836 | 4040ab72 | David Gibson | if (ret < 0) { |
837 | 05c19438 | David Gibson | goto out;
|
838 | 4040ab72 | David Gibson | } |
839 | 4040ab72 | David Gibson | } |
840 | 4040ab72 | David Gibson | |
841 | 05c19438 | David Gibson | ret = 0;
|
842 | 05c19438 | David Gibson | out:
|
843 | 05c19438 | David Gibson | free(qdevs); |
844 | 05c19438 | David Gibson | |
845 | 05c19438 | David Gibson | return ret;
|
846 | 4040ab72 | David Gibson | } |
847 | 68f3a94c | David Gibson | |
848 | 68f3a94c | David Gibson | int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus) |
849 | 68f3a94c | David Gibson | { |
850 | 68f3a94c | David Gibson | VIOsPAPRDevice *dev; |
851 | 68f3a94c | David Gibson | char *name, *path;
|
852 | 68f3a94c | David Gibson | int ret, offset;
|
853 | 68f3a94c | David Gibson | |
854 | 68f3a94c | David Gibson | dev = spapr_vty_get_default(bus); |
855 | 68f3a94c | David Gibson | if (!dev)
|
856 | 68f3a94c | David Gibson | return 0; |
857 | 68f3a94c | David Gibson | |
858 | 68f3a94c | David Gibson | offset = fdt_path_offset(fdt, "/chosen");
|
859 | 68f3a94c | David Gibson | if (offset < 0) { |
860 | 68f3a94c | David Gibson | return offset;
|
861 | 68f3a94c | David Gibson | } |
862 | 68f3a94c | David Gibson | |
863 | 68f3a94c | David Gibson | name = vio_format_dev_name(dev); |
864 | 68f3a94c | David Gibson | if (!name) {
|
865 | 68f3a94c | David Gibson | return -ENOMEM;
|
866 | 68f3a94c | David Gibson | } |
867 | 68f3a94c | David Gibson | |
868 | 68f3a94c | David Gibson | if (asprintf(&path, "/vdevice/%s", name) < 0) { |
869 | 68f3a94c | David Gibson | path = NULL;
|
870 | 68f3a94c | David Gibson | ret = -ENOMEM; |
871 | 68f3a94c | David Gibson | goto out;
|
872 | 68f3a94c | David Gibson | } |
873 | 68f3a94c | David Gibson | |
874 | 68f3a94c | David Gibson | ret = fdt_setprop_string(fdt, offset, "linux,stdout-path", path);
|
875 | 68f3a94c | David Gibson | out:
|
876 | 68f3a94c | David Gibson | free(name); |
877 | 68f3a94c | David Gibson | free(path); |
878 | 68f3a94c | David Gibson | |
879 | 68f3a94c | David Gibson | return ret;
|
880 | 68f3a94c | David Gibson | } |
881 | 4040ab72 | David Gibson | #endif /* CONFIG_FDT */ |