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 | |
73 | depends on NEED_SG_DMA_LENGTH | |
74 | select IOMMU_API | |
75 | select IOMMU_IOVA | |
76 | ||
695093e3 VS |
77 | config FSL_PAMU |
78 | bool "Freescale IOMMU support" | |
477ab7a1 JR |
79 | depends on PPC32 |
80 | depends on PPC_E500MC || COMPILE_TEST | |
695093e3 VS |
81 | select IOMMU_API |
82 | select GENERIC_ALLOCATOR | |
83 | help | |
84 | Freescale PAMU support. PAMU is the IOMMU present on Freescale QorIQ platforms. | |
85 | PAMU can authorize memory access, remap the memory address, and remap I/O | |
86 | transaction types. | |
87 | ||
b10f127e OBC |
88 | # MSM IOMMU support |
89 | config MSM_IOMMU | |
90 | bool "MSM IOMMU Support" | |
477ab7a1 JR |
91 | depends on ARM |
92 | depends on ARCH_MSM8X60 || ARCH_MSM8960 || COMPILE_TEST | |
a3f447a4 | 93 | depends on BROKEN |
b10f127e OBC |
94 | select IOMMU_API |
95 | help | |
96 | Support for the IOMMUs found on certain Qualcomm SOCs. | |
97 | These IOMMUs allow virtualization of the address space used by most | |
98 | cores within the multimedia subsystem. | |
99 | ||
100 | If unsure, say N here. | |
101 | ||
102 | config IOMMU_PGTABLES_L2 | |
103 | def_bool y | |
104 | depends on MSM_IOMMU && MMU && SMP && CPU_DCACHE_DISABLE=n | |
29b68415 OBC |
105 | |
106 | # AMD IOMMU support | |
107 | config AMD_IOMMU | |
108 | bool "AMD IOMMU support" | |
109 | select SWIOTLB | |
110 | select PCI_MSI | |
52815b75 JR |
111 | select PCI_ATS |
112 | select PCI_PRI | |
113 | select PCI_PASID | |
29b68415 | 114 | select IOMMU_API |
0dbc6078 | 115 | depends on X86_64 && PCI && ACPI |
29b68415 OBC |
116 | ---help--- |
117 | With this option you can enable support for AMD IOMMU hardware in | |
118 | your system. An IOMMU is a hardware component which provides | |
119 | remapping of DMA memory accesses from devices. With an AMD IOMMU you | |
59bf8964 | 120 | can isolate the DMA memory of different devices and protect the |
29b68415 OBC |
121 | system from misbehaving device drivers or hardware. |
122 | ||
123 | You can find out if your system has an AMD IOMMU if you look into | |
124 | your BIOS for an option to enable it or if you have an IVRS ACPI | |
125 | table. | |
126 | ||
127 | config AMD_IOMMU_STATS | |
128 | bool "Export AMD IOMMU statistics to debugfs" | |
129 | depends on AMD_IOMMU | |
130 | select DEBUG_FS | |
131 | ---help--- | |
132 | This option enables code in the AMD IOMMU driver to collect various | |
133 | statistics about whats happening in the driver and exports that | |
134 | information to userspace via debugfs. | |
135 | If unsure, say N. | |
166e9278 | 136 | |
e3c495c7 | 137 | config AMD_IOMMU_V2 |
a446e219 | 138 | tristate "AMD IOMMU Version 2 driver" |
e5cac32c | 139 | depends on AMD_IOMMU |
8736b2c3 | 140 | select MMU_NOTIFIER |
e3c495c7 JR |
141 | ---help--- |
142 | This option enables support for the AMD IOMMUv2 features of the IOMMU | |
143 | hardware. Select this option if you want to use devices that support | |
59bf8964 | 144 | the PCI PRI and PASID interface. |
e3c495c7 | 145 | |
166e9278 | 146 | # Intel IOMMU support |
d3f13810 SS |
147 | config DMAR_TABLE |
148 | bool | |
149 | ||
150 | config INTEL_IOMMU | |
151 | bool "Support for Intel IOMMU using DMA Remapping Devices" | |
166e9278 OBC |
152 | depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC) |
153 | select IOMMU_API | |
114150d8 | 154 | select IOMMU_IOVA |
d3f13810 | 155 | select DMAR_TABLE |
166e9278 OBC |
156 | help |
157 | DMA remapping (DMAR) devices support enables independent address | |
158 | translations for Direct Memory Access (DMA) from devices. | |
159 | These DMA remapping devices are reported via ACPI tables | |
160 | and include PCI device scope covered by these DMA | |
161 | remapping devices. | |
162 | ||
8a94ade4 DW |
163 | config INTEL_IOMMU_SVM |
164 | bool "Support for Shared Virtual Memory with Intel IOMMU" | |
165 | depends on INTEL_IOMMU && X86 | |
b16d0cb9 | 166 | select PCI_PASID |
2f26e0a9 | 167 | select MMU_NOTIFIER |
8a94ade4 DW |
168 | help |
169 | Shared Virtual Memory (SVM) provides a facility for devices | |
170 | to access DMA resources through process address space by | |
171 | means of a Process Address Space ID (PASID). | |
172 | ||
d3f13810 | 173 | config INTEL_IOMMU_DEFAULT_ON |
166e9278 | 174 | def_bool y |
d3f13810 SS |
175 | prompt "Enable Intel DMA Remapping Devices by default" |
176 | depends on INTEL_IOMMU | |
166e9278 OBC |
177 | help |
178 | Selecting this option will enable a DMAR device at boot time if | |
179 | one is found. If this option is not selected, DMAR support can | |
180 | be enabled by passing intel_iommu=on to the kernel. | |
181 | ||
d3f13810 | 182 | config INTEL_IOMMU_BROKEN_GFX_WA |
166e9278 | 183 | bool "Workaround broken graphics drivers (going away soon)" |
d3f13810 | 184 | depends on INTEL_IOMMU && BROKEN && X86 |
166e9278 OBC |
185 | ---help--- |
186 | Current Graphics drivers tend to use physical address | |
187 | for DMA and avoid using DMA APIs. Setting this config | |
188 | option permits the IOMMU driver to set a unity map for | |
189 | all the OS-visible memory. Hence the driver can continue | |
190 | to use physical addresses for DMA, at least until this | |
191 | option is removed in the 2.6.32 kernel. | |
192 | ||
d3f13810 | 193 | config INTEL_IOMMU_FLOPPY_WA |
166e9278 | 194 | def_bool y |
d3f13810 | 195 | depends on INTEL_IOMMU && X86 |
166e9278 OBC |
196 | ---help--- |
197 | Floppy disk drivers are known to bypass DMA API calls | |
198 | thereby failing to work when IOMMU is enabled. This | |
199 | workaround will setup a 1:1 mapping for the first | |
200 | 16MiB to make floppy (an ISA device) work. | |
201 | ||
d3f13810 | 202 | config IRQ_REMAP |
a446e219 KC |
203 | bool "Support for Interrupt Remapping" |
204 | depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI | |
d3f13810 | 205 | select DMAR_TABLE |
166e9278 OBC |
206 | ---help--- |
207 | Supports Interrupt remapping for IO-APIC and MSI devices. | |
208 | To use x2apic mode in the CPU's which support x2APIC enhancements or | |
209 | to support platforms with CPU's having > 8 bit APIC ID, say Y. | |
68255b62 | 210 | |
fcf3a6ef OBC |
211 | # OMAP IOMMU support |
212 | config OMAP_IOMMU | |
213 | bool "OMAP IOMMU Support" | |
477ab7a1 JR |
214 | depends on ARM && MMU |
215 | depends on ARCH_OMAP2PLUS || COMPILE_TEST | |
fcf3a6ef | 216 | select IOMMU_API |
06b718c0 GH |
217 | ---help--- |
218 | The OMAP3 media platform drivers depend on iommu support, | |
219 | if you need them say Y here. | |
fcf3a6ef | 220 | |
fcf3a6ef | 221 | config OMAP_IOMMU_DEBUG |
61c75352 SA |
222 | bool "Export OMAP IOMMU internals in DebugFS" |
223 | depends on OMAP_IOMMU && DEBUG_FS | |
224 | ---help--- | |
225 | Select this to see extensive information about | |
226 | the internal state of OMAP IOMMU in debugfs. | |
fcf3a6ef | 227 | |
61c75352 | 228 | Say N unless you know you need this. |
fcf3a6ef | 229 | |
c68a2921 DK |
230 | config ROCKCHIP_IOMMU |
231 | bool "Rockchip IOMMU Support" | |
11175886 JR |
232 | depends on ARM |
233 | depends on ARCH_ROCKCHIP || COMPILE_TEST | |
c68a2921 DK |
234 | select IOMMU_API |
235 | select ARM_DMA_USE_IOMMU | |
236 | help | |
237 | Support for IOMMUs found on Rockchip rk32xx SOCs. | |
238 | These IOMMUs allow virtualization of the address space used by most | |
239 | cores within the multimedia subsystem. | |
240 | Say Y here if you are using a Rockchip SoC that includes an IOMMU | |
241 | device. | |
fcf3a6ef | 242 | |
d53e54b4 HD |
243 | config TEGRA_IOMMU_GART |
244 | bool "Tegra GART IOMMU Support" | |
245 | depends on ARCH_TEGRA_2x_SOC | |
246 | select IOMMU_API | |
247 | help | |
248 | Enables support for remapping discontiguous physical memory | |
249 | shared with the operating system into contiguous I/O virtual | |
250 | space through the GART (Graphics Address Relocation Table) | |
251 | hardware included on Tegra SoCs. | |
252 | ||
7a31f6f4 | 253 | config TEGRA_IOMMU_SMMU |
89184651 TR |
254 | bool "NVIDIA Tegra SMMU Support" |
255 | depends on ARCH_TEGRA | |
256 | depends on TEGRA_AHB | |
257 | depends on TEGRA_MC | |
7a31f6f4 HD |
258 | select IOMMU_API |
259 | help | |
89184651 | 260 | This driver supports the IOMMU hardware (SMMU) found on NVIDIA Tegra |
588c43a7 | 261 | SoCs (Tegra30 up to Tegra210). |
7a31f6f4 | 262 | |
2a96536e KC |
263 | config EXYNOS_IOMMU |
264 | bool "Exynos IOMMU Support" | |
e5144c93 | 265 | depends on ARCH_EXYNOS && ARM && MMU |
2a96536e | 266 | select IOMMU_API |
4802c1d0 | 267 | select ARM_DMA_USE_IOMMU |
2a96536e | 268 | help |
5455d700 SK |
269 | Support for the IOMMU (System MMU) of Samsung Exynos application |
270 | processor family. This enables H/W multimedia accelerators to see | |
271 | non-linear physical memory chunks as linear memory in their | |
272 | address space. | |
2a96536e KC |
273 | |
274 | If unsure, say N here. | |
275 | ||
276 | config EXYNOS_IOMMU_DEBUG | |
277 | bool "Debugging log for Exynos IOMMU" | |
278 | depends on EXYNOS_IOMMU | |
279 | help | |
280 | Select this to see the detailed log message that shows what | |
5455d700 | 281 | happens in the IOMMU driver. |
2a96536e | 282 | |
5455d700 | 283 | Say N unless you need kernel log message for IOMMU debugging. |
2a96536e | 284 | |
d25a2a16 LP |
285 | config IPMMU_VMSA |
286 | bool "Renesas VMSA-compatible IPMMU" | |
287 | depends on ARM_LPAE | |
288 | depends on ARCH_SHMOBILE || COMPILE_TEST | |
289 | select IOMMU_API | |
f20ed39f | 290 | select IOMMU_IO_PGTABLE_LPAE |
d25a2a16 LP |
291 | select ARM_DMA_USE_IOMMU |
292 | help | |
293 | Support for the Renesas VMSA-compatible IPMMU Renesas found in the | |
294 | R-Mobile APE6 and R-Car H2/M2 SoCs. | |
295 | ||
296 | If unsure, say N. | |
297 | ||
4e13c1ac AK |
298 | config SPAPR_TCE_IOMMU |
299 | bool "sPAPR TCE IOMMU Support" | |
5b25199e | 300 | depends on PPC_POWERNV || PPC_PSERIES |
4e13c1ac AK |
301 | select IOMMU_API |
302 | help | |
303 | Enables bits of IOMMU API required by VFIO. The iommu_ops | |
304 | is not implemented as it is not necessary for VFIO. | |
305 | ||
48ec83bc | 306 | # ARM IOMMU support |
45ae7cff WD |
307 | config ARM_SMMU |
308 | bool "ARM Ltd. System MMU (SMMU) Support" | |
a20cc76b | 309 | depends on (ARM64 || ARM) && MMU |
45ae7cff | 310 | select IOMMU_API |
518f7136 | 311 | select IOMMU_IO_PGTABLE_LPAE |
45ae7cff WD |
312 | select ARM_DMA_USE_IOMMU if ARM |
313 | help | |
314 | Support for implementations of the ARM System MMU architecture | |
518f7136 | 315 | versions 1 and 2. |
45ae7cff WD |
316 | |
317 | Say Y here if your SoC includes an IOMMU device implementing | |
318 | the ARM SMMU architecture. | |
319 | ||
48ec83bc WD |
320 | config ARM_SMMU_V3 |
321 | bool "ARM Ltd. System MMU Version 3 (SMMUv3) Support" | |
322 | depends on ARM64 && PCI | |
323 | select IOMMU_API | |
324 | select IOMMU_IO_PGTABLE_LPAE | |
166bdbd2 | 325 | select GENERIC_MSI_IRQ_DOMAIN |
48ec83bc WD |
326 | help |
327 | Support for implementations of the ARM System MMU architecture | |
328 | version 3 providing translation support to a PCIe root complex. | |
329 | ||
330 | Say Y here if your system includes an IOMMU device implementing | |
331 | the ARM SMMUv3 architecture. | |
332 | ||
8128f23c GS |
333 | config S390_IOMMU |
334 | def_bool y if S390 && PCI | |
335 | depends on S390 && PCI | |
336 | select IOMMU_API | |
337 | help | |
338 | Support for the IOMMU API for s390 PCI devices. | |
339 | ||
68255b62 | 340 | endif # IOMMU_SUPPORT |