Commit | Line | Data |
---|---|---|
ab493a0f OBC |
1 | # IOMMU_API always gets selected by whoever wants it. |
2 | config IOMMU_API | |
3 | bool | |
b10f127e | 4 | |
68255b62 JR |
5 | menuconfig IOMMU_SUPPORT |
6 | bool "IOMMU Hardware Support" | |
e5144c93 | 7 | depends on MMU |
68255b62 JR |
8 | default y |
9 | ---help--- | |
10 | Say Y here if you want to compile device drivers for IO Memory | |
11 | Management Units into the kernel. These devices usually allow to | |
12 | remap DMA requests and/or remap interrupts from other devices on the | |
13 | system. | |
14 | ||
15 | if IOMMU_SUPPORT | |
16 | ||
fdb1d7be WD |
17 | menu "Generic IOMMU Pagetable Support" |
18 | ||
19 | # Selected by the actual pagetable implementations | |
20 | config IOMMU_IO_PGTABLE | |
21 | bool | |
22 | ||
e1d3c0fd WD |
23 | config IOMMU_IO_PGTABLE_LPAE |
24 | bool "ARMv7/v8 Long Descriptor Format" | |
25 | select IOMMU_IO_PGTABLE | |
ffcb6d16 | 26 | depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST) |
e1d3c0fd WD |
27 | help |
28 | Enable support for the ARM long descriptor pagetable format. | |
29 | This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page | |
30 | sizes at both stage-1 and stage-2, as well as address spaces | |
31 | up to 48-bits in size. | |
32 | ||
fe4b991d WD |
33 | config IOMMU_IO_PGTABLE_LPAE_SELFTEST |
34 | bool "LPAE selftests" | |
35 | depends on IOMMU_IO_PGTABLE_LPAE | |
36 | help | |
37 | Enable self-tests for LPAE page table allocator. This performs | |
38 | a series of page-table consistency checks during boot. | |
39 | ||
40 | If unsure, say N here. | |
41 | ||
e5fc9753 RM |
42 | config IOMMU_IO_PGTABLE_ARMV7S |
43 | bool "ARMv7/v8 Short Descriptor Format" | |
44 | select IOMMU_IO_PGTABLE | |
45 | depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST) | |
46 | help | |
47 | Enable support for the ARM Short-descriptor pagetable format. | |
48 | This supports 32-bit virtual and physical addresses mapped using | |
49 | 2-level tables with 4KB pages/1MB sections, and contiguous entries | |
50 | for 64KB pages/16MB supersections if indicated by the IOMMU driver. | |
51 | ||
52 | config IOMMU_IO_PGTABLE_ARMV7S_SELFTEST | |
53 | bool "ARMv7s selftests" | |
54 | depends on IOMMU_IO_PGTABLE_ARMV7S | |
55 | help | |
56 | Enable self-tests for ARMv7s page table allocator. This performs | |
57 | a series of page-table consistency checks during boot. | |
58 | ||
59 | If unsure, say N here. | |
60 | ||
fdb1d7be WD |
61 | endmenu |
62 | ||
114150d8 | 63 | config IOMMU_IOVA |
15bbdec3 | 64 | tristate |
114150d8 | 65 | |
4e0ee78f HD |
66 | config OF_IOMMU |
67 | def_bool y | |
7eba1d51 | 68 | depends on OF && IOMMU_API |
4e0ee78f | 69 | |
0db2e5d1 RM |
70 | # IOMMU-agnostic DMA-mapping layer |
71 | config IOMMU_DMA | |
72 | bool | |
0db2e5d1 RM |
73 | select IOMMU_API |
74 | select IOMMU_IOVA | |
59a68eb8 | 75 | select NEED_SG_DMA_LENGTH |
0db2e5d1 | 76 | |
695093e3 VS |
77 | config FSL_PAMU |
78 | bool "Freescale IOMMU support" | |
a0d284d2 | 79 | depends on PPC_E500MC || (COMPILE_TEST && PPC) |
695093e3 VS |
80 | select IOMMU_API |
81 | select GENERIC_ALLOCATOR | |
82 | help | |
83 | Freescale PAMU support. PAMU is the IOMMU present on Freescale QorIQ platforms. | |
84 | PAMU can authorize memory access, remap the memory address, and remap I/O | |
85 | transaction types. | |
86 | ||
b10f127e OBC |
87 | # MSM IOMMU support |
88 | config MSM_IOMMU | |
89 | bool "MSM IOMMU Support" | |
477ab7a1 JR |
90 | depends on ARM |
91 | depends on ARCH_MSM8X60 || ARCH_MSM8960 || COMPILE_TEST | |
a3f447a4 | 92 | depends on BROKEN |
b10f127e OBC |
93 | select IOMMU_API |
94 | help | |
95 | Support for the IOMMUs found on certain Qualcomm SOCs. | |
96 | These IOMMUs allow virtualization of the address space used by most | |
97 | cores within the multimedia subsystem. | |
98 | ||
99 | If unsure, say N here. | |
100 | ||
101 | config IOMMU_PGTABLES_L2 | |
102 | def_bool y | |
103 | depends on MSM_IOMMU && MMU && SMP && CPU_DCACHE_DISABLE=n | |
29b68415 OBC |
104 | |
105 | # AMD IOMMU support | |
106 | config AMD_IOMMU | |
107 | bool "AMD IOMMU support" | |
108 | select SWIOTLB | |
109 | select PCI_MSI | |
52815b75 JR |
110 | select PCI_ATS |
111 | select PCI_PRI | |
112 | select PCI_PASID | |
29b68415 | 113 | select IOMMU_API |
0dbc6078 | 114 | depends on X86_64 && PCI && ACPI |
29b68415 OBC |
115 | ---help--- |
116 | With this option you can enable support for AMD IOMMU hardware in | |
117 | your system. An IOMMU is a hardware component which provides | |
118 | remapping of DMA memory accesses from devices. With an AMD IOMMU you | |
59bf8964 | 119 | can isolate the DMA memory of different devices and protect the |
29b68415 OBC |
120 | system from misbehaving device drivers or hardware. |
121 | ||
122 | You can find out if your system has an AMD IOMMU if you look into | |
123 | your BIOS for an option to enable it or if you have an IVRS ACPI | |
124 | table. | |
125 | ||
e3c495c7 | 126 | config AMD_IOMMU_V2 |
a446e219 | 127 | tristate "AMD IOMMU Version 2 driver" |
e5cac32c | 128 | depends on AMD_IOMMU |
8736b2c3 | 129 | select MMU_NOTIFIER |
e3c495c7 JR |
130 | ---help--- |
131 | This option enables support for the AMD IOMMUv2 features of the IOMMU | |
132 | hardware. Select this option if you want to use devices that support | |
59bf8964 | 133 | the PCI PRI and PASID interface. |
e3c495c7 | 134 | |
166e9278 | 135 | # Intel IOMMU support |
d3f13810 SS |
136 | config DMAR_TABLE |
137 | bool | |
138 | ||
139 | config INTEL_IOMMU | |
140 | bool "Support for Intel IOMMU using DMA Remapping Devices" | |
166e9278 OBC |
141 | depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC) |
142 | select IOMMU_API | |
114150d8 | 143 | select IOMMU_IOVA |
d3f13810 | 144 | select DMAR_TABLE |
166e9278 OBC |
145 | help |
146 | DMA remapping (DMAR) devices support enables independent address | |
147 | translations for Direct Memory Access (DMA) from devices. | |
148 | These DMA remapping devices are reported via ACPI tables | |
149 | and include PCI device scope covered by these DMA | |
150 | remapping devices. | |
151 | ||
8a94ade4 DW |
152 | config INTEL_IOMMU_SVM |
153 | bool "Support for Shared Virtual Memory with Intel IOMMU" | |
154 | depends on INTEL_IOMMU && X86 | |
b16d0cb9 | 155 | select PCI_PASID |
2f26e0a9 | 156 | select MMU_NOTIFIER |
8a94ade4 DW |
157 | help |
158 | Shared Virtual Memory (SVM) provides a facility for devices | |
159 | to access DMA resources through process address space by | |
160 | means of a Process Address Space ID (PASID). | |
161 | ||
d3f13810 | 162 | config INTEL_IOMMU_DEFAULT_ON |
166e9278 | 163 | def_bool y |
d3f13810 SS |
164 | prompt "Enable Intel DMA Remapping Devices by default" |
165 | depends on INTEL_IOMMU | |
166e9278 OBC |
166 | help |
167 | Selecting this option will enable a DMAR device at boot time if | |
168 | one is found. If this option is not selected, DMAR support can | |
169 | be enabled by passing intel_iommu=on to the kernel. | |
170 | ||
d3f13810 | 171 | config INTEL_IOMMU_BROKEN_GFX_WA |
166e9278 | 172 | bool "Workaround broken graphics drivers (going away soon)" |
d3f13810 | 173 | depends on INTEL_IOMMU && BROKEN && X86 |
166e9278 OBC |
174 | ---help--- |
175 | Current Graphics drivers tend to use physical address | |
176 | for DMA and avoid using DMA APIs. Setting this config | |
177 | option permits the IOMMU driver to set a unity map for | |
178 | all the OS-visible memory. Hence the driver can continue | |
179 | to use physical addresses for DMA, at least until this | |
180 | option is removed in the 2.6.32 kernel. | |
181 | ||
d3f13810 | 182 | config INTEL_IOMMU_FLOPPY_WA |
166e9278 | 183 | def_bool y |
d3f13810 | 184 | depends on INTEL_IOMMU && X86 |
166e9278 OBC |
185 | ---help--- |
186 | Floppy disk drivers are known to bypass DMA API calls | |
187 | thereby failing to work when IOMMU is enabled. This | |
188 | workaround will setup a 1:1 mapping for the first | |
189 | 16MiB to make floppy (an ISA device) work. | |
190 | ||
d3f13810 | 191 | config IRQ_REMAP |
a446e219 KC |
192 | bool "Support for Interrupt Remapping" |
193 | depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI | |
d3f13810 | 194 | select DMAR_TABLE |
166e9278 OBC |
195 | ---help--- |
196 | Supports Interrupt remapping for IO-APIC and MSI devices. | |
197 | To use x2apic mode in the CPU's which support x2APIC enhancements or | |
198 | to support platforms with CPU's having > 8 bit APIC ID, say Y. | |
68255b62 | 199 | |
fcf3a6ef OBC |
200 | # OMAP IOMMU support |
201 | config OMAP_IOMMU | |
202 | bool "OMAP IOMMU Support" | |
477ab7a1 JR |
203 | depends on ARM && MMU |
204 | depends on ARCH_OMAP2PLUS || COMPILE_TEST | |
fcf3a6ef | 205 | select IOMMU_API |
06b718c0 GH |
206 | ---help--- |
207 | The OMAP3 media platform drivers depend on iommu support, | |
208 | if you need them say Y here. | |
fcf3a6ef | 209 | |
fcf3a6ef | 210 | config OMAP_IOMMU_DEBUG |
61c75352 SA |
211 | bool "Export OMAP IOMMU internals in DebugFS" |
212 | depends on OMAP_IOMMU && DEBUG_FS | |
213 | ---help--- | |
214 | Select this to see extensive information about | |
215 | the internal state of OMAP IOMMU in debugfs. | |
fcf3a6ef | 216 | |
61c75352 | 217 | Say N unless you know you need this. |
fcf3a6ef | 218 | |
c68a2921 DK |
219 | config ROCKCHIP_IOMMU |
220 | bool "Rockchip IOMMU Support" | |
11175886 JR |
221 | depends on ARM |
222 | depends on ARCH_ROCKCHIP || COMPILE_TEST | |
c68a2921 DK |
223 | select IOMMU_API |
224 | select ARM_DMA_USE_IOMMU | |
225 | help | |
226 | Support for IOMMUs found on Rockchip rk32xx SOCs. | |
227 | These IOMMUs allow virtualization of the address space used by most | |
228 | cores within the multimedia subsystem. | |
229 | Say Y here if you are using a Rockchip SoC that includes an IOMMU | |
230 | device. | |
fcf3a6ef | 231 | |
d53e54b4 HD |
232 | config TEGRA_IOMMU_GART |
233 | bool "Tegra GART IOMMU Support" | |
234 | depends on ARCH_TEGRA_2x_SOC | |
235 | select IOMMU_API | |
236 | help | |
237 | Enables support for remapping discontiguous physical memory | |
238 | shared with the operating system into contiguous I/O virtual | |
239 | space through the GART (Graphics Address Relocation Table) | |
240 | hardware included on Tegra SoCs. | |
241 | ||
7a31f6f4 | 242 | config TEGRA_IOMMU_SMMU |
89184651 TR |
243 | bool "NVIDIA Tegra SMMU Support" |
244 | depends on ARCH_TEGRA | |
245 | depends on TEGRA_AHB | |
246 | depends on TEGRA_MC | |
7a31f6f4 HD |
247 | select IOMMU_API |
248 | help | |
89184651 | 249 | This driver supports the IOMMU hardware (SMMU) found on NVIDIA Tegra |
588c43a7 | 250 | SoCs (Tegra30 up to Tegra210). |
7a31f6f4 | 251 | |
2a96536e KC |
252 | config EXYNOS_IOMMU |
253 | bool "Exynos IOMMU Support" | |
740a01ee | 254 | depends on ARCH_EXYNOS && MMU |
2a96536e | 255 | select IOMMU_API |
4802c1d0 | 256 | select ARM_DMA_USE_IOMMU |
2a96536e | 257 | help |
5455d700 SK |
258 | Support for the IOMMU (System MMU) of Samsung Exynos application |
259 | processor family. This enables H/W multimedia accelerators to see | |
260 | non-linear physical memory chunks as linear memory in their | |
261 | address space. | |
2a96536e KC |
262 | |
263 | If unsure, say N here. | |
264 | ||
265 | config EXYNOS_IOMMU_DEBUG | |
266 | bool "Debugging log for Exynos IOMMU" | |
267 | depends on EXYNOS_IOMMU | |
268 | help | |
269 | Select this to see the detailed log message that shows what | |
5455d700 | 270 | happens in the IOMMU driver. |
2a96536e | 271 | |
5455d700 | 272 | Say N unless you need kernel log message for IOMMU debugging. |
2a96536e | 273 | |
d25a2a16 LP |
274 | config IPMMU_VMSA |
275 | bool "Renesas VMSA-compatible IPMMU" | |
276 | depends on ARM_LPAE | |
9015ba45 | 277 | depends on ARCH_RENESAS || COMPILE_TEST |
d25a2a16 | 278 | select IOMMU_API |
f20ed39f | 279 | select IOMMU_IO_PGTABLE_LPAE |
d25a2a16 LP |
280 | select ARM_DMA_USE_IOMMU |
281 | help | |
282 | Support for the Renesas VMSA-compatible IPMMU Renesas found in the | |
283 | R-Mobile APE6 and R-Car H2/M2 SoCs. | |
284 | ||
285 | If unsure, say N. | |
286 | ||
4e13c1ac AK |
287 | config SPAPR_TCE_IOMMU |
288 | bool "sPAPR TCE IOMMU Support" | |
5b25199e | 289 | depends on PPC_POWERNV || PPC_PSERIES |
4e13c1ac AK |
290 | select IOMMU_API |
291 | help | |
292 | Enables bits of IOMMU API required by VFIO. The iommu_ops | |
293 | is not implemented as it is not necessary for VFIO. | |
294 | ||
48ec83bc | 295 | # ARM IOMMU support |
45ae7cff WD |
296 | config ARM_SMMU |
297 | bool "ARM Ltd. System MMU (SMMU) Support" | |
a20cc76b | 298 | depends on (ARM64 || ARM) && MMU |
45ae7cff | 299 | select IOMMU_API |
518f7136 | 300 | select IOMMU_IO_PGTABLE_LPAE |
45ae7cff WD |
301 | select ARM_DMA_USE_IOMMU if ARM |
302 | help | |
303 | Support for implementations of the ARM System MMU architecture | |
518f7136 | 304 | versions 1 and 2. |
45ae7cff WD |
305 | |
306 | Say Y here if your SoC includes an IOMMU device implementing | |
307 | the ARM SMMU architecture. | |
308 | ||
48ec83bc WD |
309 | config ARM_SMMU_V3 |
310 | bool "ARM Ltd. System MMU Version 3 (SMMUv3) Support" | |
311 | depends on ARM64 && PCI | |
312 | select IOMMU_API | |
313 | select IOMMU_IO_PGTABLE_LPAE | |
166bdbd2 | 314 | select GENERIC_MSI_IRQ_DOMAIN |
48ec83bc WD |
315 | help |
316 | Support for implementations of the ARM System MMU architecture | |
317 | version 3 providing translation support to a PCIe root complex. | |
318 | ||
319 | Say Y here if your system includes an IOMMU device implementing | |
320 | the ARM SMMUv3 architecture. | |
321 | ||
8128f23c GS |
322 | config S390_IOMMU |
323 | def_bool y if S390 && PCI | |
324 | depends on S390 && PCI | |
325 | select IOMMU_API | |
326 | help | |
327 | Support for the IOMMU API for s390 PCI devices. | |
328 | ||
0df4fabe YW |
329 | config MTK_IOMMU |
330 | bool "MTK IOMMU Support" | |
331 | depends on ARM || ARM64 | |
332 | depends on ARCH_MEDIATEK || COMPILE_TEST | |
1928832f | 333 | select ARM_DMA_USE_IOMMU |
0df4fabe YW |
334 | select IOMMU_API |
335 | select IOMMU_DMA | |
336 | select IOMMU_IO_PGTABLE_ARMV7S | |
337 | select MEMORY | |
338 | select MTK_SMI | |
339 | help | |
340 | Support for the M4U on certain Mediatek SOCs. M4U is MultiMedia | |
341 | Memory Management Unit. This option enables remapping of DMA memory | |
342 | accesses for the multimedia subsystem. | |
343 | ||
344 | If unsure, say N here. | |
345 | ||
68255b62 | 346 | endif # IOMMU_SUPPORT |