Commit 3e494c80481653bbc810b4e67651097595ea0294
Committed by
Paul Mackerras
1 parent
6020164499
Exists in
master
and in
4 other branches
[PATCH] ppc64: split iSeries specific parts out of vio.c
This patch splits the iSeries specific parts out of vio.c. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Showing 4 changed files with 166 additions and 125 deletions Side-by-side Diff
arch/ppc64/kernel/Makefile
| ... | ... | @@ -50,7 +50,9 @@ |
| 50 | 50 | obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o |
| 51 | 51 | obj-$(CONFIG_BOOTX_TEXT) += btext.o |
| 52 | 52 | obj-$(CONFIG_HVCS) += hvcserver.o |
| 53 | -obj-$(CONFIG_IBMVIO) += vio.o | |
| 53 | + | |
| 54 | +vio-obj-$(CONFIG_PPC_ISERIES) += iSeries_vio.o | |
| 55 | +obj-$(CONFIG_IBMVIO) += vio.o $(vio-obj-y) | |
| 54 | 56 | obj-$(CONFIG_XICS) += xics.o |
| 55 | 57 | obj-$(CONFIG_MPIC) += mpic.o |
| 56 | 58 |
arch/ppc64/kernel/iSeries_vio.c
| 1 | +/* | |
| 2 | + * IBM PowerPC iSeries Virtual I/O Infrastructure Support. | |
| 3 | + * | |
| 4 | + * Copyright (c) 2005 Stephen Rothwell, IBM Corp. | |
| 5 | + * | |
| 6 | + * This program is free software; you can redistribute it and/or | |
| 7 | + * modify it under the terms of the GNU General Public License | |
| 8 | + * as published by the Free Software Foundation; either version | |
| 9 | + * 2 of the License, or (at your option) any later version. | |
| 10 | + */ | |
| 11 | +#include <linux/types.h> | |
| 12 | +#include <linux/device.h> | |
| 13 | +#include <linux/init.h> | |
| 14 | + | |
| 15 | +#include <asm/vio.h> | |
| 16 | +#include <asm/iommu.h> | |
| 17 | +#include <asm/abs_addr.h> | |
| 18 | +#include <asm/page.h> | |
| 19 | +#include <asm/iSeries/vio.h> | |
| 20 | +#include <asm/iSeries/HvTypes.h> | |
| 21 | +#include <asm/iSeries/HvLpConfig.h> | |
| 22 | +#include <asm/iSeries/HvCallXm.h> | |
| 23 | + | |
| 24 | +struct device *iSeries_vio_dev = &vio_bus_device.dev; | |
| 25 | +EXPORT_SYMBOL(iSeries_vio_dev); | |
| 26 | + | |
| 27 | +static struct iommu_table veth_iommu_table; | |
| 28 | +static struct iommu_table vio_iommu_table; | |
| 29 | + | |
| 30 | +void __init iommu_vio_init(void) | |
| 31 | +{ | |
| 32 | + struct iommu_table *t; | |
| 33 | + struct iommu_table_cb cb; | |
| 34 | + unsigned long cbp; | |
| 35 | + unsigned long itc_entries; | |
| 36 | + | |
| 37 | + cb.itc_busno = 255; /* Bus 255 is the virtual bus */ | |
| 38 | + cb.itc_virtbus = 0xff; /* Ask for virtual bus */ | |
| 39 | + | |
| 40 | + cbp = virt_to_abs(&cb); | |
| 41 | + HvCallXm_getTceTableParms(cbp); | |
| 42 | + | |
| 43 | + itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry); | |
| 44 | + veth_iommu_table.it_size = itc_entries / 2; | |
| 45 | + veth_iommu_table.it_busno = cb.itc_busno; | |
| 46 | + veth_iommu_table.it_offset = cb.itc_offset; | |
| 47 | + veth_iommu_table.it_index = cb.itc_index; | |
| 48 | + veth_iommu_table.it_type = TCE_VB; | |
| 49 | + veth_iommu_table.it_blocksize = 1; | |
| 50 | + | |
| 51 | + t = iommu_init_table(&veth_iommu_table); | |
| 52 | + | |
| 53 | + if (!t) | |
| 54 | + printk("Virtual Bus VETH TCE table failed.\n"); | |
| 55 | + | |
| 56 | + vio_iommu_table.it_size = itc_entries - veth_iommu_table.it_size; | |
| 57 | + vio_iommu_table.it_busno = cb.itc_busno; | |
| 58 | + vio_iommu_table.it_offset = cb.itc_offset + | |
| 59 | + veth_iommu_table.it_size; | |
| 60 | + vio_iommu_table.it_index = cb.itc_index; | |
| 61 | + vio_iommu_table.it_type = TCE_VB; | |
| 62 | + vio_iommu_table.it_blocksize = 1; | |
| 63 | + | |
| 64 | + t = iommu_init_table(&vio_iommu_table); | |
| 65 | + | |
| 66 | + if (!t) | |
| 67 | + printk("Virtual Bus VIO TCE table failed.\n"); | |
| 68 | +} | |
| 69 | + | |
| 70 | +/** | |
| 71 | + * vio_register_device: - Register a new vio device. | |
| 72 | + * @voidev: The device to register. | |
| 73 | + */ | |
| 74 | +static struct vio_dev *__init vio_register_device_iseries(char *type, | |
| 75 | + uint32_t unit_num) | |
| 76 | +{ | |
| 77 | + struct vio_dev *viodev; | |
| 78 | + | |
| 79 | + /* allocate a vio_dev for this node */ | |
| 80 | + viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL); | |
| 81 | + if (!viodev) | |
| 82 | + return NULL; | |
| 83 | + memset(viodev, 0, sizeof(struct vio_dev)); | |
| 84 | + | |
| 85 | + snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num); | |
| 86 | + | |
| 87 | + return vio_register_device_common(viodev, viodev->dev.bus_id, type, | |
| 88 | + unit_num, &vio_iommu_table); | |
| 89 | +} | |
| 90 | + | |
| 91 | +void __init probe_bus_iseries(void) | |
| 92 | +{ | |
| 93 | + HvLpIndexMap vlan_map; | |
| 94 | + struct vio_dev *viodev; | |
| 95 | + int i; | |
| 96 | + | |
| 97 | + /* there is only one of each of these */ | |
| 98 | + vio_register_device_iseries("viocons", 0); | |
| 99 | + vio_register_device_iseries("vscsi", 0); | |
| 100 | + | |
| 101 | + vlan_map = HvLpConfig_getVirtualLanIndexMap(); | |
| 102 | + for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) { | |
| 103 | + if ((vlan_map & (0x8000 >> i)) == 0) | |
| 104 | + continue; | |
| 105 | + viodev = vio_register_device_iseries("vlan", i); | |
| 106 | + /* veth is special and has it own iommu_table */ | |
| 107 | + viodev->iommu_table = &veth_iommu_table; | |
| 108 | + } | |
| 109 | + for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) | |
| 110 | + vio_register_device_iseries("viodasd", i); | |
| 111 | + for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) | |
| 112 | + vio_register_device_iseries("viocd", i); | |
| 113 | + for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) | |
| 114 | + vio_register_device_iseries("viotape", i); | |
| 115 | +} | |
| 116 | + | |
| 117 | +/** | |
| 118 | + * vio_bus_init_iseries: - Initialize the iSeries virtual IO bus | |
| 119 | + */ | |
| 120 | +static int __init vio_bus_init_iseries(void) | |
| 121 | +{ | |
| 122 | + int err; | |
| 123 | + | |
| 124 | + err = vio_bus_init(); | |
| 125 | + if (err == 0) { | |
| 126 | + vio_bus_device.iommu_table = &vio_iommu_table; | |
| 127 | + iSeries_vio_dev = &vio_bus_device.dev; | |
| 128 | + probe_bus_iseries(); | |
| 129 | + } | |
| 130 | + return err; | |
| 131 | +} | |
| 132 | + | |
| 133 | +__initcall(vio_bus_init_iseries); |
arch/ppc64/kernel/vio.c
| ... | ... | @@ -25,10 +25,6 @@ |
| 25 | 25 | #include <asm/ppcdebug.h> |
| 26 | 26 | #include <asm/vio.h> |
| 27 | 27 | #include <asm/hvcall.h> |
| 28 | -#include <asm/iSeries/vio.h> | |
| 29 | -#include <asm/iSeries/HvTypes.h> | |
| 30 | -#include <asm/iSeries/HvCallXm.h> | |
| 31 | -#include <asm/iSeries/HvLpConfig.h> | |
| 32 | 28 | |
| 33 | 29 | #define DBGENTER() pr_debug("%s entered\n", __FUNCTION__) |
| 34 | 30 | |
| 35 | 31 | |
| 36 | 32 | |
| 37 | 33 | |
| ... | ... | @@ -41,27 +37,15 @@ |
| 41 | 37 | static struct iommu_table *vio_build_iommu_table(struct vio_dev *); |
| 42 | 38 | static int vio_num_address_cells; |
| 43 | 39 | #endif |
| 44 | -#ifdef CONFIG_PPC_ISERIES | |
| 45 | -static struct iommu_table veth_iommu_table; | |
| 46 | -static struct iommu_table vio_iommu_table; | |
| 47 | -#endif | |
| 48 | -static struct vio_dev vio_bus_device = { /* fake "parent" device */ | |
| 40 | +struct vio_dev vio_bus_device = { /* fake "parent" device */ | |
| 49 | 41 | .name = vio_bus_device.dev.bus_id, |
| 50 | 42 | .type = "", |
| 51 | -#ifdef CONFIG_PPC_ISERIES | |
| 52 | - .iommu_table = &vio_iommu_table, | |
| 53 | -#endif | |
| 54 | 43 | .dev.bus_id = "vio", |
| 55 | 44 | .dev.bus = &vio_bus_type, |
| 56 | 45 | }; |
| 57 | 46 | |
| 58 | 47 | #ifdef CONFIG_PPC_ISERIES |
| 59 | -static struct vio_dev *__init vio_register_device_iseries(char *type, | |
| 60 | - uint32_t unit_num); | |
| 61 | 48 | |
| 62 | -struct device *iSeries_vio_dev = &vio_bus_device.dev; | |
| 63 | -EXPORT_SYMBOL(iSeries_vio_dev); | |
| 64 | - | |
| 65 | 49 | #define device_is_compatible(a, b) 1 |
| 66 | 50 | |
| 67 | 51 | #endif |
| ... | ... | @@ -157,48 +141,6 @@ |
| 157 | 141 | return NULL; |
| 158 | 142 | } |
| 159 | 143 | |
| 160 | -#ifdef CONFIG_PPC_ISERIES | |
| 161 | -void __init iommu_vio_init(void) | |
| 162 | -{ | |
| 163 | - struct iommu_table *t; | |
| 164 | - struct iommu_table_cb cb; | |
| 165 | - unsigned long cbp; | |
| 166 | - unsigned long itc_entries; | |
| 167 | - | |
| 168 | - cb.itc_busno = 255; /* Bus 255 is the virtual bus */ | |
| 169 | - cb.itc_virtbus = 0xff; /* Ask for virtual bus */ | |
| 170 | - | |
| 171 | - cbp = virt_to_abs(&cb); | |
| 172 | - HvCallXm_getTceTableParms(cbp); | |
| 173 | - | |
| 174 | - itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry); | |
| 175 | - veth_iommu_table.it_size = itc_entries / 2; | |
| 176 | - veth_iommu_table.it_busno = cb.itc_busno; | |
| 177 | - veth_iommu_table.it_offset = cb.itc_offset; | |
| 178 | - veth_iommu_table.it_index = cb.itc_index; | |
| 179 | - veth_iommu_table.it_type = TCE_VB; | |
| 180 | - veth_iommu_table.it_blocksize = 1; | |
| 181 | - | |
| 182 | - t = iommu_init_table(&veth_iommu_table); | |
| 183 | - | |
| 184 | - if (!t) | |
| 185 | - printk("Virtual Bus VETH TCE table failed.\n"); | |
| 186 | - | |
| 187 | - vio_iommu_table.it_size = itc_entries - veth_iommu_table.it_size; | |
| 188 | - vio_iommu_table.it_busno = cb.itc_busno; | |
| 189 | - vio_iommu_table.it_offset = cb.itc_offset + | |
| 190 | - veth_iommu_table.it_size; | |
| 191 | - vio_iommu_table.it_index = cb.itc_index; | |
| 192 | - vio_iommu_table.it_type = TCE_VB; | |
| 193 | - vio_iommu_table.it_blocksize = 1; | |
| 194 | - | |
| 195 | - t = iommu_init_table(&vio_iommu_table); | |
| 196 | - | |
| 197 | - if (!t) | |
| 198 | - printk("Virtual Bus VIO TCE table failed.\n"); | |
| 199 | -} | |
| 200 | -#endif | |
| 201 | - | |
| 202 | 144 | #ifdef CONFIG_PPC_PSERIES |
| 203 | 145 | static void probe_bus_pseries(void) |
| 204 | 146 | { |
| 205 | 147 | |
| ... | ... | @@ -223,38 +165,10 @@ |
| 223 | 165 | } |
| 224 | 166 | #endif |
| 225 | 167 | |
| 226 | -#ifdef CONFIG_PPC_ISERIES | |
| 227 | -static void probe_bus_iseries(void) | |
| 228 | -{ | |
| 229 | - HvLpIndexMap vlan_map = HvLpConfig_getVirtualLanIndexMap(); | |
| 230 | - struct vio_dev *viodev; | |
| 231 | - int i; | |
| 232 | - | |
| 233 | - /* there is only one of each of these */ | |
| 234 | - vio_register_device_iseries("viocons", 0); | |
| 235 | - vio_register_device_iseries("vscsi", 0); | |
| 236 | - | |
| 237 | - vlan_map = HvLpConfig_getVirtualLanIndexMap(); | |
| 238 | - for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) { | |
| 239 | - if ((vlan_map & (0x8000 >> i)) == 0) | |
| 240 | - continue; | |
| 241 | - viodev = vio_register_device_iseries("vlan", i); | |
| 242 | - /* veth is special and has it own iommu_table */ | |
| 243 | - viodev->iommu_table = &veth_iommu_table; | |
| 244 | - } | |
| 245 | - for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) | |
| 246 | - vio_register_device_iseries("viodasd", i); | |
| 247 | - for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) | |
| 248 | - vio_register_device_iseries("viocd", i); | |
| 249 | - for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) | |
| 250 | - vio_register_device_iseries("viotape", i); | |
| 251 | -} | |
| 252 | -#endif | |
| 253 | - | |
| 254 | 168 | /** |
| 255 | 169 | * vio_bus_init: - Initialize the virtual IO bus |
| 256 | 170 | */ |
| 257 | -static int __init vio_bus_init(void) | |
| 171 | +int __init vio_bus_init(void) | |
| 258 | 172 | { |
| 259 | 173 | int err; |
| 260 | 174 | |
| 261 | 175 | |
| 262 | 176 | |
| 263 | 177 | |
| 264 | 178 | |
| 265 | 179 | |
| ... | ... | @@ -264,25 +178,35 @@ |
| 264 | 178 | return err; |
| 265 | 179 | } |
| 266 | 180 | |
| 267 | - /* the fake parent of all vio devices, just to give us a nice directory */ | |
| 181 | + /* the fake parent of all vio devices, just to give us | |
| 182 | + * a nice directory | |
| 183 | + */ | |
| 268 | 184 | err = device_register(&vio_bus_device.dev); |
| 269 | 185 | if (err) { |
| 270 | - printk(KERN_WARNING "%s: device_register returned %i\n", __FUNCTION__, | |
| 271 | - err); | |
| 186 | + printk(KERN_WARNING "%s: device_register returned %i\n", | |
| 187 | + __FUNCTION__, err); | |
| 272 | 188 | return err; |
| 273 | 189 | } |
| 274 | 190 | |
| 191 | + return 0; | |
| 192 | +} | |
| 193 | + | |
| 275 | 194 | #ifdef CONFIG_PPC_PSERIES |
| 276 | - probe_bus_pseries(); | |
| 277 | -#endif | |
| 278 | -#ifdef CONFIG_PPC_ISERIES | |
| 279 | - probe_bus_iseries(); | |
| 280 | -#endif | |
| 195 | +/** | |
| 196 | + * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus | |
| 197 | + */ | |
| 198 | +static int __init vio_bus_init_pseries(void) | |
| 199 | +{ | |
| 200 | + int err; | |
| 281 | 201 | |
| 282 | - return 0; | |
| 202 | + err = vio_bus_init(); | |
| 203 | + if (err == 0) | |
| 204 | + probe_bus_pseries(); | |
| 205 | + return err; | |
| 283 | 206 | } |
| 284 | 207 | |
| 285 | -__initcall(vio_bus_init); | |
| 208 | +__initcall(vio_bus_init_pseries); | |
| 209 | +#endif | |
| 286 | 210 | |
| 287 | 211 | /* vio_dev refcount hit 0 */ |
| 288 | 212 | static void __devinit vio_dev_release(struct device *dev) |
| ... | ... | @@ -312,7 +236,7 @@ |
| 312 | 236 | } |
| 313 | 237 | DEVICE_ATTR(name, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_name, NULL); |
| 314 | 238 | |
| 315 | -static struct vio_dev * __devinit vio_register_device_common( | |
| 239 | +struct vio_dev * __devinit vio_register_device_common( | |
| 316 | 240 | struct vio_dev *viodev, char *name, char *type, |
| 317 | 241 | uint32_t unit_address, struct iommu_table *iommu_table) |
| 318 | 242 | { |
| ... | ... | @@ -406,31 +330,6 @@ |
| 406 | 330 | return viodev; |
| 407 | 331 | } |
| 408 | 332 | EXPORT_SYMBOL(vio_register_device_node); |
| 409 | -#endif | |
| 410 | - | |
| 411 | -#ifdef CONFIG_PPC_ISERIES | |
| 412 | -/** | |
| 413 | - * vio_register_device: - Register a new vio device. | |
| 414 | - * @voidev: The device to register. | |
| 415 | - */ | |
| 416 | -static struct vio_dev *__init vio_register_device_iseries(char *type, | |
| 417 | - uint32_t unit_num) | |
| 418 | -{ | |
| 419 | - struct vio_dev *viodev; | |
| 420 | - | |
| 421 | - DBGENTER(); | |
| 422 | - | |
| 423 | - /* allocate a vio_dev for this node */ | |
| 424 | - viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL); | |
| 425 | - if (!viodev) | |
| 426 | - return NULL; | |
| 427 | - memset(viodev, 0, sizeof(struct vio_dev)); | |
| 428 | - | |
| 429 | - snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num); | |
| 430 | - | |
| 431 | - return vio_register_device_common(viodev, viodev->dev.bus_id, type, | |
| 432 | - unit_num, &vio_iommu_table); | |
| 433 | -} | |
| 434 | 333 | #endif |
| 435 | 334 | |
| 436 | 335 | void __devinit vio_unregister_device(struct vio_dev *viodev) |
include/asm-ppc64/vio.h
| ... | ... | @@ -56,6 +56,9 @@ |
| 56 | 56 | int vio_get_irq(struct vio_dev *dev); |
| 57 | 57 | int vio_enable_interrupts(struct vio_dev *dev); |
| 58 | 58 | int vio_disable_interrupts(struct vio_dev *dev); |
| 59 | +extern struct vio_dev * __devinit vio_register_device_common( | |
| 60 | + struct vio_dev *viodev, char *name, char *type, | |
| 61 | + uint32_t unit_address, struct iommu_table *iommu_table); | |
| 59 | 62 | |
| 60 | 63 | extern struct dma_mapping_ops vio_dma_ops; |
| 61 | 64 | |
| 62 | 65 | |
| ... | ... | @@ -95,10 +98,14 @@ |
| 95 | 98 | struct device dev; |
| 96 | 99 | }; |
| 97 | 100 | |
| 101 | +extern struct vio_dev vio_bus_device; | |
| 102 | + | |
| 98 | 103 | static inline struct vio_dev *to_vio_dev(struct device *dev) |
| 99 | 104 | { |
| 100 | 105 | return container_of(dev, struct vio_dev, dev); |
| 101 | 106 | } |
| 107 | + | |
| 108 | +extern int vio_bus_init(void); | |
| 102 | 109 | |
| 103 | 110 | #endif /* _ASM_VIO_H */ |