| /kernel/linux/linux-5.10/arch/sparc/kernel/ |
| D | iommu.c | 2 /* iommu.c: Generic sparc64 IOMMU support.
15 #include <linux/iommu-helper.h>
17 #include <asm/iommu-common.h>
23 #include <asm/iommu.h>
49 /* Must be invoked under the IOMMU lock. */
52 struct iommu *iommu = container_of(iommu_map_table, struct iommu, tbl); in iommu_flushall() local
53 if (iommu->iommu_flushinv) { in iommu_flushall()
54 iommu_write(iommu->iommu_flushinv, ~(u64)0); in iommu_flushall()
59 tag = iommu->iommu_tags; in iommu_flushall()
66 (void) iommu_read(iommu->write_complete_reg); in iommu_flushall()
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| D | iommu-common.c | 3 * IOMMU mmap management and range allocation functions.
4 * Based almost entirely upon the powerpc iommu allocator.
10 #include <linux/iommu-helper.h>
13 #include <asm/iommu-common.h>
19 static inline bool need_flush(struct iommu_map_table *iommu) in need_flush() argument
21 return ((iommu->flags & IOMMU_NEED_FLUSH) != 0); in need_flush()
24 static inline void set_flush(struct iommu_map_table *iommu) in set_flush() argument
26 iommu->flags |= IOMMU_NEED_FLUSH; in set_flush()
29 static inline void clear_flush(struct iommu_map_table *iommu) in clear_flush() argument
31 iommu->flags &= ~IOMMU_NEED_FLUSH; in clear_flush()
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| /kernel/linux/linux-6.6/arch/sparc/kernel/ |
| D | iommu.c | 2 /* iommu.c: Generic sparc64 IOMMU support.
15 #include <linux/iommu-helper.h>
17 #include <asm/iommu-common.h>
23 #include <asm/iommu.h>
49 /* Must be invoked under the IOMMU lock. */
52 struct iommu *iommu = container_of(iommu_map_table, struct iommu, tbl); in iommu_flushall() local
53 if (iommu->iommu_flushinv) { in iommu_flushall()
54 iommu_write(iommu->iommu_flushinv, ~(u64)0); in iommu_flushall()
59 tag = iommu->iommu_tags; in iommu_flushall()
66 (void) iommu_read(iommu->write_complete_reg); in iommu_flushall()
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| D | iommu-common.c | 3 * IOMMU mmap management and range allocation functions.
4 * Based almost entirely upon the powerpc iommu allocator.
10 #include <linux/iommu-helper.h>
13 #include <asm/iommu-common.h>
19 static inline bool need_flush(struct iommu_map_table *iommu) in need_flush() argument
21 return ((iommu->flags & IOMMU_NEED_FLUSH) != 0); in need_flush()
24 static inline void set_flush(struct iommu_map_table *iommu) in set_flush() argument
26 iommu->flags |= IOMMU_NEED_FLUSH; in set_flush()
29 static inline void clear_flush(struct iommu_map_table *iommu) in clear_flush() argument
31 iommu->flags &= ~IOMMU_NEED_FLUSH; in clear_flush()
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| /kernel/linux/linux-6.6/drivers/iommu/ |
| D | sun50i-iommu.c | 14 #include <linux/iommu.h>
99 struct iommu_device iommu; member
101 /* Lock to modify the IOMMU registers */
124 struct sun50i_iommu *iommu; member
137 static u32 iommu_read(struct sun50i_iommu *iommu, u32 offset) in iommu_read() argument
139 return readl(iommu->base + offset); in iommu_read()
142 static void iommu_write(struct sun50i_iommu *iommu, u32 offset, u32 value) in iommu_write() argument
144 writel(value, iommu->base + offset); in iommu_write()
148 * The Allwinner H6 IOMMU uses a 2-level page table.
157 * The IOMMU supports a single DT, pointed by the IOMMU_TTB_REG
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| D | msm_iommu.c | 18 #include <linux/iommu.h>
54 static int __enable_clocks(struct msm_iommu_dev *iommu) in __enable_clocks() argument
58 ret = clk_enable(iommu->pclk); in __enable_clocks()
62 if (iommu->clk) { in __enable_clocks()
63 ret = clk_enable(iommu->clk); in __enable_clocks()
65 clk_disable(iommu->pclk); in __enable_clocks()
71 static void __disable_clocks(struct msm_iommu_dev *iommu) in __disable_clocks() argument
73 if (iommu->clk) in __disable_clocks()
74 clk_disable(iommu->clk); in __disable_clocks()
75 clk_disable(iommu->pclk); in __disable_clocks()
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| D | rockchip-iommu.c | 3 * IOMMU API for Rockchip
17 #include <linux/iommu.h>
92 /* list of clocks required by IOMMU */
113 struct iommu_device iommu; member
115 struct iommu_domain *domain; /* domain to which iommu is attached */
120 struct device_link *link; /* runtime PM link from IOMMU to master */
121 struct rk_iommu *iommu; member
142 * The Rockchip rk3288 iommu uses a 2-level page table.
151 * Each iommu device has a MMU_DTE_ADDR register that contains the physical
304 * rk3288 iova (IOMMU Virtual Address) format
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| D | iommu-sysfs.c | 3 * IOMMU sysfs class support
10 #include <linux/iommu.h>
16 * As devices are added to the IOMMU, we'll add links to the group.
38 .name = "iommu",
50 * Init the struct device for the IOMMU. IOMMU specific attributes can
52 * IOMMU type.
54 int iommu_device_sysfs_add(struct iommu_device *iommu, in iommu_device_sysfs_add() argument
62 iommu->dev = kzalloc(sizeof(*iommu->dev), GFP_KERNEL); in iommu_device_sysfs_add()
63 if (!iommu->dev) in iommu_device_sysfs_add()
66 device_initialize(iommu->dev); in iommu_device_sysfs_add()
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| /kernel/linux/linux-5.10/drivers/iommu/ |
| D | sun50i-iommu.c | 10 #include <linux/dma-iommu.h>
15 #include <linux/iommu.h>
98 struct iommu_device iommu; member
100 /* Lock to modify the IOMMU registers */
123 struct sun50i_iommu *iommu; member
136 static u32 iommu_read(struct sun50i_iommu *iommu, u32 offset) in iommu_read() argument
138 return readl(iommu->base + offset); in iommu_read()
141 static void iommu_write(struct sun50i_iommu *iommu, u32 offset, u32 value) in iommu_write() argument
143 writel(value, iommu->base + offset); in iommu_write()
147 * The Allwinner H6 IOMMU uses a 2-level page table.
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| D | msm_iommu.c | 18 #include <linux/iommu.h>
55 static int __enable_clocks(struct msm_iommu_dev *iommu) in __enable_clocks() argument
59 ret = clk_enable(iommu->pclk); in __enable_clocks()
63 if (iommu->clk) { in __enable_clocks()
64 ret = clk_enable(iommu->clk); in __enable_clocks()
66 clk_disable(iommu->pclk); in __enable_clocks()
72 static void __disable_clocks(struct msm_iommu_dev *iommu) in __disable_clocks() argument
74 if (iommu->clk) in __disable_clocks()
75 clk_disable(iommu->clk); in __disable_clocks()
76 clk_disable(iommu->pclk); in __disable_clocks()
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| D | rockchip-iommu.c | 3 * IOMMU API for Rockchip
13 #include <linux/dma-iommu.h>
18 #include <linux/iommu.h>
94 /* list of clocks required by IOMMU */
107 struct iommu_device iommu; member
109 struct iommu_domain *domain; /* domain to which iommu is attached */
114 struct device_link *link; /* runtime PM link from IOMMU to master */
115 struct rk_iommu *iommu; member
134 * The Rockchip rk3288 iommu uses a 2-level page table.
143 * Each iommu device has a MMU_DTE_ADDR register that contains the physical
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| D | iommu-sysfs.c | 3 * IOMMU sysfs class support
10 #include <linux/iommu.h>
16 * As devices are added to the IOMMU, we'll add links to the group.
38 .name = "iommu",
50 * Init the struct device for the IOMMU. IOMMU specific attributes can
52 * IOMMU type.
54 int iommu_device_sysfs_add(struct iommu_device *iommu, in iommu_device_sysfs_add() argument
62 iommu->dev = kzalloc(sizeof(*iommu->dev), GFP_KERNEL); in iommu_device_sysfs_add()
63 if (!iommu->dev) in iommu_device_sysfs_add()
66 device_initialize(iommu->dev); in iommu_device_sysfs_add()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/pci/ |
| D | pci-iommu.txt | 2 relationship between PCI(e) devices and IOMMU(s).
17 Requester ID. While a given PCI device can only master through one IOMMU, a
18 root complex may split masters across a set of IOMMUs (e.g. with one IOMMU per
22 and a mechanism is required to map from a PCI device to its IOMMU and sideband
25 For generic IOMMU bindings, see
26 Documentation/devicetree/bindings/iommu/iommu.txt.
35 - iommu-map: Maps a Requester ID to an IOMMU and associated IOMMU specifier
39 (rid-base,iommu,iommu-base,length).
42 the listed IOMMU, with the IOMMU specifier (r - rid-base + iommu-base).
44 - iommu-map-mask: A mask to be applied to each Requester ID prior to being
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/pci/ |
| D | pci-iommu.txt | 2 relationship between PCI(e) devices and IOMMU(s).
17 Requester ID. While a given PCI device can only master through one IOMMU, a
18 root complex may split masters across a set of IOMMUs (e.g. with one IOMMU per
22 and a mechanism is required to map from a PCI device to its IOMMU and sideband
25 For generic IOMMU bindings, see
26 Documentation/devicetree/bindings/iommu/iommu.txt.
35 - iommu-map: Maps a Requester ID to an IOMMU and associated IOMMU specifier
39 (rid-base,iommu,iommu-base,length).
42 the listed IOMMU, with the IOMMU specifier (r - rid-base + iommu-base).
44 - iommu-map-mask: A mask to be applied to each Requester ID prior to being
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| /kernel/linux/linux-5.10/drivers/iommu/amd/ |
| D | init.c | 19 #include <linux/amd-iommu.h>
25 #include <asm/iommu.h>
102 * structure describing one IOMMU in the ACPI table. Typically followed by one
122 * A device entry describing which devices a specific IOMMU translates and
138 * An AMD IOMMU memory definition structure. It defines things like exclusion
203 * mappings of the PCI device ids to the actual requestor ids on the IOMMU.
209 * The rlookup table is used to find the IOMMU which is responsible
222 * AMD IOMMU allows up to 2^16 different protection domains. This is a bitmap
267 bool translation_pre_enabled(struct amd_iommu *iommu) in translation_pre_enabled() argument
269 return (iommu->flags & AMD_IOMMU_FLAG_TRANS_PRE_ENABLED); in translation_pre_enabled()
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| /kernel/linux/linux-6.6/drivers/iommu/amd/ |
| D | init.c | 20 #include <linux/amd-iommu.h>
26 #include <asm/iommu.h>
99 * structure describing one IOMMU in the ACPI table. Typically followed by one
119 * A device entry describing which devices a specific IOMMU translates and
137 * An AMD IOMMU memory definition structure. It defines things like exclusion
199 * AMD IOMMU allows up to 2^16 different protection domains. This is a bitmap
239 bool translation_pre_enabled(struct amd_iommu *iommu) in translation_pre_enabled() argument
241 return (iommu->flags & AMD_IOMMU_FLAG_TRANS_PRE_ENABLED); in translation_pre_enabled()
244 static void clear_translation_pre_enabled(struct amd_iommu *iommu) in clear_translation_pre_enabled() argument
246 iommu->flags &= ~AMD_IOMMU_FLAG_TRANS_PRE_ENABLED; in clear_translation_pre_enabled()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/iommu/ |
| D | iommu.txt | 5 IOMMU device node:
8 An IOMMU can provide the following services:
19 through the IOMMU and faulting when encountering accesses to unmapped
29 IOMMUs can be single-master or multiple-master. Single-master IOMMU devices
31 master IOMMU devices can translate accesses from more than one master.
33 The device tree node of the IOMMU device's parent bus must contain a valid
35 IOMMU maps to memory. An empty "dma-ranges" property means that there is a
36 1:1 mapping from IOMMU to memory.
40 - #iommu-cells: The number of cells in an IOMMU specifier needed to encode an
43 The meaning of the IOMMU specifier is defined by the device tree binding of
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| /kernel/linux/linux-6.6/drivers/iommu/intel/ |
| D | cap_audit.c | 3 * cap_audit.c - audit iommu capabilities for boot time and hot plug
13 #include "iommu.h"
74 static int cap_audit_hotplug(struct intel_iommu *iommu, enum cap_audit_type type) in cap_audit_hotplug() argument
81 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, pi_support, CAP_PI_MASK); in cap_audit_hotplug()
82 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, eim_support, ECAP_EIM_MASK); in cap_audit_hotplug()
86 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, fl5lp_support, CAP_FL5LP_MASK); in cap_audit_hotplug()
87 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, fl1gp_support, CAP_FL1GP_MASK); in cap_audit_hotplug()
88 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, read_drain, CAP_RD_MASK); in cap_audit_hotplug()
89 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, write_drain, CAP_WD_MASK); in cap_audit_hotplug()
90 CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, pgsel_inv, CAP_PSI_MASK); in cap_audit_hotplug()
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| D | irq_remapping.c | 23 #include "iommu.h"
33 struct intel_iommu *iommu; member
40 struct intel_iommu *iommu; member
47 struct intel_iommu *iommu; member
74 * ->iommu->register_lock
83 static void iommu_disable_irq_remapping(struct intel_iommu *iommu);
87 static bool ir_pre_enabled(struct intel_iommu *iommu) in ir_pre_enabled() argument
89 return (iommu->flags & VTD_FLAG_IRQ_REMAP_PRE_ENABLED); in ir_pre_enabled()
92 static void clear_ir_pre_enabled(struct intel_iommu *iommu) in clear_ir_pre_enabled() argument
94 iommu->flags &= ~VTD_FLAG_IRQ_REMAP_PRE_ENABLED; in clear_ir_pre_enabled()
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| D | svm.c | 22 #include "iommu.h"
25 #include "../iommu-sva.h"
64 int intel_svm_enable_prq(struct intel_iommu *iommu) in intel_svm_enable_prq() argument
72 pr_warn("IOMMU: %s: Failed to allocate page request queue\n", in intel_svm_enable_prq()
73 iommu->name); in intel_svm_enable_prq()
76 iommu->prq = page_address(pages); in intel_svm_enable_prq()
78 irq = dmar_alloc_hwirq(IOMMU_IRQ_ID_OFFSET_PRQ + iommu->seq_id, iommu->node, iommu); in intel_svm_enable_prq()
80 pr_err("IOMMU: %s: Failed to create IRQ vector for page request queue\n", in intel_svm_enable_prq()
81 iommu->name); in intel_svm_enable_prq()
85 iommu->pr_irq = irq; in intel_svm_enable_prq()
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| D | iommu.c | 27 #include "iommu.h"
28 #include "../dma-iommu.h"
30 #include "../iommu-sva.h"
223 static inline bool context_copied(struct intel_iommu *iommu, u8 bus, u8 devfn) in context_copied() argument
225 if (!iommu->copied_tables) in context_copied()
228 return test_bit(((long)bus << 8) | devfn, iommu->copied_tables); in context_copied()
232 set_context_copied(struct intel_iommu *iommu, u8 bus, u8 devfn) in set_context_copied() argument
234 set_bit(((long)bus << 8) | devfn, iommu->copied_tables); in set_context_copied()
238 clear_context_copied(struct intel_iommu *iommu, u8 bus, u8 devfn) in clear_context_copied() argument
240 clear_bit(((long)bus << 8) | devfn, iommu->copied_tables); in clear_context_copied()
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| /kernel/linux/linux-5.10/drivers/iommu/intel/ |
| D | irq_remapping.c | 13 #include <linux/intel-iommu.h>
33 struct intel_iommu *iommu; member
40 struct intel_iommu *iommu; member
47 struct intel_iommu *iommu; member
74 * ->iommu->register_lock
83 static void iommu_disable_irq_remapping(struct intel_iommu *iommu);
86 static bool ir_pre_enabled(struct intel_iommu *iommu) in ir_pre_enabled() argument
88 return (iommu->flags & VTD_FLAG_IRQ_REMAP_PRE_ENABLED); in ir_pre_enabled()
91 static void clear_ir_pre_enabled(struct intel_iommu *iommu) in clear_ir_pre_enabled() argument
93 iommu->flags &= ~VTD_FLAG_IRQ_REMAP_PRE_ENABLED; in clear_ir_pre_enabled()
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| D | iommu.c | 33 #include <linux/iommu.h>
34 #include <linux/intel-iommu.h>
47 #include <asm/iommu.h>
90 * to the IOMMU core, which will then use this information to split
94 * Traditionally the IOMMU core just handed us the mappings directly,
101 * If at some point we'd like to utilize the IOMMU core's new behavior,
171 /* global iommu list, set NULL for ignored DMAR units */
293 * 2. It maps to each iommu if successful.
294 * 3. Each iommu mapps to this domain if successful.
414 static bool translation_pre_enabled(struct intel_iommu *iommu) in translation_pre_enabled() argument
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/iommu/ |
| D | iommu.txt | 5 IOMMU device node:
8 An IOMMU can provide the following services:
19 through the IOMMU and faulting when encountering accesses to unmapped
29 IOMMUs can be single-master or multiple-master. Single-master IOMMU devices
31 master IOMMU devices can translate accesses from more than one master.
33 The device tree node of the IOMMU device's parent bus must contain a valid
35 IOMMU maps to memory. An empty "dma-ranges" property means that there is a
36 1:1 mapping from IOMMU to memory.
40 - #iommu-cells: The number of cells in an IOMMU specifier needed to encode an
43 The meaning of the IOMMU specifier is defined by the device tree binding of
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/virtio/ |
| D | iommu.txt | 1 * virtio IOMMU PCI device
3 When virtio-iommu uses the PCI transport, its programming interface is
5 device tree statically describes the relation between IOMMU and DMA
6 masters. Therefore, the PCI root complex that hosts the virtio-iommu
7 contains a child node representing the IOMMU device explicitly.
11 - compatible: Should be "virtio,pci-iommu"
12 - reg: PCI address of the IOMMU. As defined in the PCI Bus
18 - #iommu-cells: Each platform DMA master managed by the IOMMU is assigned
20 For virtio-iommu, #iommu-cells must be 1.
24 - DMA from the IOMMU device isn't managed by another IOMMU. Therefore the
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