IOMMU Updates for Linux v6.5
Including:
- Core changes:
- iova_magazine_alloc() optimization
- Make flush-queue an IOMMU driver capability
- Consolidate the error handling around device attachment
- AMD IOMMU changes:
- AVIC Interrupt Remapping Improvements
- Some minor fixes and cleanups
- Intel VT-d changes from Lu Baolu:
- Small and misc cleanups
- ARM-SMMU changes from Will Deacon:
- Device-tree binding updates:
* Add missing clocks for SC8280XP and SA8775 Adreno SMMUs
* Add two new Qualcomm SMMUs in SDX75 and SM6375
- Workarounds for Arm MMU-700 errata:
* 1076982: Avoid use of SEV-based cmdq wakeup
* 2812531: Terminate command batches with a CMD_SYNC
* Enforce single-stage translation to avoid nesting-related errata
- Set the correct level hint for range TLB invalidation on teardown
- Some other minor fixes and cleanups (including Freescale PAMU and
virtio-iommu changes)
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Merge tag 'iommu-updates-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"Core changes:
- iova_magazine_alloc() optimization
- Make flush-queue an IOMMU driver capability
- Consolidate the error handling around device attachment
AMD IOMMU changes:
- AVIC Interrupt Remapping Improvements
- Some minor fixes and cleanups
Intel VT-d changes from Lu Baolu:
- Small and misc cleanups
ARM-SMMU changes from Will Deacon:
- Device-tree binding updates:
- Add missing clocks for SC8280XP and SA8775 Adreno SMMUs
- Add two new Qualcomm SMMUs in SDX75 and SM6375
- Workarounds for Arm MMU-700 errata:
- 1076982: Avoid use of SEV-based cmdq wakeup
- 2812531: Terminate command batches with a CMD_SYNC
- Enforce single-stage translation to avoid nesting-related errata
- Set the correct level hint for range TLB invalidation on teardown
.. and some other minor fixes and cleanups (including Freescale PAMU
and virtio-iommu changes)"
* tag 'iommu-updates-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (50 commits)
iommu/vt-d: Remove commented-out code
iommu/vt-d: Remove two WARN_ON in domain_context_mapping_one()
iommu/vt-d: Handle the failure case of dmar_reenable_qi()
iommu/vt-d: Remove unnecessary (void*) conversions
iommu/amd: Remove extern from function prototypes
iommu/amd: Use BIT/BIT_ULL macro to define bit fields
iommu/amd: Fix DTE_IRQ_PHYS_ADDR_MASK macro
iommu/amd: Fix compile error for unused function
iommu/amd: Improving Interrupt Remapping Table Invalidation
iommu/amd: Do not Invalidate IRT when IRTE caching is disabled
iommu/amd: Introduce Disable IRTE Caching Support
iommu/amd: Remove the unused struct amd_ir_data.ref
iommu/amd: Switch amd_iommu_update_ga() to use modify_irte_ga()
iommu/arm-smmu-v3: Set TTL invalidation hint better
iommu/arm-smmu-v3: Document nesting-related errata
iommu/arm-smmu-v3: Add explicit feature for nesting
iommu/arm-smmu-v3: Document MMU-700 erratum 2812531
iommu/arm-smmu-v3: Work around MMU-600 erratum 1076982
dt-bindings: arm-smmu: Add SDX75 SMMU compatible
dt-bindings: arm-smmu: Add SM6375 GPU SMMU
...
This commit is contained in:
Linus Torvalds
commit
d35ac6ac0e
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@ -254,6 +254,7 @@ ForEachMacros:
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- 'for_each_free_mem_range'
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- 'for_each_free_mem_range_reverse'
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- 'for_each_func_rsrc'
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- 'for_each_group_device'
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- 'for_each_group_evsel'
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- 'for_each_group_member'
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- 'for_each_hstate'
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|
|
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@ -323,6 +323,7 @@
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option with care.
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pgtbl_v1 - Use v1 page table for DMA-API (Default).
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pgtbl_v2 - Use v2 page table for DMA-API.
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irtcachedis - Disable Interrupt Remapping Table (IRT) caching.
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amd_iommu_dump= [HW,X86-64]
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Enable AMD IOMMU driver option to dump the ACPI table
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@ -140,6 +140,10 @@ stable kernels.
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | MMU-500 | #841119,826419 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | MMU-600 | #1076982,1209401| N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | MMU-700 | #2268618,2812531| N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_845719 |
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+----------------+-----------------+-----------------+-----------------------------+
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@ -29,6 +29,7 @@ properties:
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- qcom,msm8996-smmu-v2
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- qcom,msm8998-smmu-v2
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- qcom,sdm630-smmu-v2
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- qcom,sm6375-smmu-v2
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- const: qcom,smmu-v2
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- description: Qcom SoCs implementing "qcom,smmu-500" and "arm,mmu-500"
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@ -45,6 +46,7 @@ properties:
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- qcom,sdm845-smmu-500
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- qcom,sdx55-smmu-500
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- qcom,sdx65-smmu-500
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- qcom,sdx75-smmu-500
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- qcom,sm6115-smmu-500
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- qcom,sm6125-smmu-500
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- qcom,sm6350-smmu-500
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@ -79,7 +81,9 @@ properties:
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- description: Qcom Adreno GPUs implementing "qcom,smmu-500" and "arm,mmu-500"
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items:
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- enum:
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- qcom,sa8775p-smmu-500
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- qcom,sc7280-smmu-500
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- qcom,sc8280xp-smmu-500
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- qcom,sm6115-smmu-500
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- qcom,sm6125-smmu-500
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- qcom,sm8150-smmu-500
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@ -267,6 +271,7 @@ allOf:
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enum:
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- qcom,msm8998-smmu-v2
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- qcom,sdm630-smmu-v2
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- qcom,sm6375-smmu-v2
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then:
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anyOf:
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- properties:
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@ -331,7 +336,10 @@ allOf:
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properties:
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compatible:
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contains:
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const: qcom,sc7280-smmu-500
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enum:
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- qcom,sa8775p-smmu-500
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- qcom,sc7280-smmu-500
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- qcom,sc8280xp-smmu-500
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then:
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properties:
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clock-names:
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@ -413,10 +421,8 @@ allOf:
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- nvidia,smmu-500
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- qcom,qcm2290-smmu-500
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- qcom,qdu1000-smmu-500
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- qcom,sa8775p-smmu-500
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- qcom,sc7180-smmu-500
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- qcom,sc8180x-smmu-500
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- qcom,sc8280xp-smmu-500
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- qcom,sdm670-smmu-500
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- qcom,sdm845-smmu-500
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- qcom,sdx55-smmu-500
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@ -1353,6 +1353,7 @@ static struct platform_driver fsl_pci_driver = {
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.of_match_table = pci_ids,
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},
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.probe = fsl_pci_probe,
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.driver_managed_dma = true,
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};
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static int __init fsl_pci_init(void)
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@ -11,12 +11,15 @@
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#include "amd_iommu_types.h"
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extern irqreturn_t amd_iommu_int_thread(int irq, void *data);
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extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
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extern void amd_iommu_apply_erratum_63(struct amd_iommu *iommu, u16 devid);
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extern void amd_iommu_restart_event_logging(struct amd_iommu *iommu);
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extern void amd_iommu_restart_ga_log(struct amd_iommu *iommu);
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extern void amd_iommu_set_rlookup_table(struct amd_iommu *iommu, u16 devid);
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irqreturn_t amd_iommu_int_thread(int irq, void *data);
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irqreturn_t amd_iommu_int_handler(int irq, void *data);
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void amd_iommu_apply_erratum_63(struct amd_iommu *iommu, u16 devid);
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void amd_iommu_restart_event_logging(struct amd_iommu *iommu);
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void amd_iommu_restart_ga_log(struct amd_iommu *iommu);
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int amd_iommu_init_devices(void);
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void amd_iommu_uninit_devices(void);
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void amd_iommu_init_notifier(void);
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void amd_iommu_set_rlookup_table(struct amd_iommu *iommu, u16 devid);
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#ifdef CONFIG_AMD_IOMMU_DEBUGFS
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void amd_iommu_debugfs_setup(struct amd_iommu *iommu);
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@ -25,11 +28,11 @@ static inline void amd_iommu_debugfs_setup(struct amd_iommu *iommu) {}
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#endif
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/* Needed for interrupt remapping */
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extern int amd_iommu_prepare(void);
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extern int amd_iommu_enable(void);
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extern void amd_iommu_disable(void);
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extern int amd_iommu_reenable(int);
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extern int amd_iommu_enable_faulting(void);
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int amd_iommu_prepare(void);
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int amd_iommu_enable(void);
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void amd_iommu_disable(void);
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int amd_iommu_reenable(int mode);
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int amd_iommu_enable_faulting(void);
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extern int amd_iommu_guest_ir;
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extern enum io_pgtable_fmt amd_iommu_pgtable;
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extern int amd_iommu_gpt_level;
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@ -37,33 +40,32 @@ extern int amd_iommu_gpt_level;
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/* IOMMUv2 specific functions */
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struct iommu_domain;
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extern bool amd_iommu_v2_supported(void);
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extern struct amd_iommu *get_amd_iommu(unsigned int idx);
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extern u8 amd_iommu_pc_get_max_banks(unsigned int idx);
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extern bool amd_iommu_pc_supported(void);
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extern u8 amd_iommu_pc_get_max_counters(unsigned int idx);
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extern int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
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u8 fxn, u64 *value);
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extern int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
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u8 fxn, u64 *value);
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bool amd_iommu_v2_supported(void);
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struct amd_iommu *get_amd_iommu(unsigned int idx);
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u8 amd_iommu_pc_get_max_banks(unsigned int idx);
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bool amd_iommu_pc_supported(void);
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u8 amd_iommu_pc_get_max_counters(unsigned int idx);
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int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
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u8 fxn, u64 *value);
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int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
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u8 fxn, u64 *value);
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extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb);
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extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb);
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extern void amd_iommu_domain_direct_map(struct iommu_domain *dom);
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extern int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids);
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extern int amd_iommu_flush_page(struct iommu_domain *dom, u32 pasid,
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u64 address);
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extern void amd_iommu_update_and_flush_device_table(struct protection_domain *domain);
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extern void amd_iommu_domain_update(struct protection_domain *domain);
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extern void amd_iommu_domain_flush_complete(struct protection_domain *domain);
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extern void amd_iommu_domain_flush_tlb_pde(struct protection_domain *domain);
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extern int amd_iommu_flush_tlb(struct iommu_domain *dom, u32 pasid);
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extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, u32 pasid,
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unsigned long cr3);
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extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, u32 pasid);
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int amd_iommu_register_ppr_notifier(struct notifier_block *nb);
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int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb);
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void amd_iommu_domain_direct_map(struct iommu_domain *dom);
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int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids);
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int amd_iommu_flush_page(struct iommu_domain *dom, u32 pasid, u64 address);
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void amd_iommu_update_and_flush_device_table(struct protection_domain *domain);
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void amd_iommu_domain_update(struct protection_domain *domain);
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void amd_iommu_domain_flush_complete(struct protection_domain *domain);
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void amd_iommu_domain_flush_tlb_pde(struct protection_domain *domain);
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int amd_iommu_flush_tlb(struct iommu_domain *dom, u32 pasid);
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int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, u32 pasid,
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unsigned long cr3);
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int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, u32 pasid);
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#ifdef CONFIG_IRQ_REMAP
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extern int amd_iommu_create_irq_domain(struct amd_iommu *iommu);
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int amd_iommu_create_irq_domain(struct amd_iommu *iommu);
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#else
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static inline int amd_iommu_create_irq_domain(struct amd_iommu *iommu)
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{
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@ -75,8 +77,8 @@ static inline int amd_iommu_create_irq_domain(struct amd_iommu *iommu)
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#define PPR_INVALID 0x1
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#define PPR_FAILURE 0xf
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extern int amd_iommu_complete_ppr(struct pci_dev *pdev, u32 pasid,
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int status, int tag);
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int amd_iommu_complete_ppr(struct pci_dev *pdev, u32 pasid,
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int status, int tag);
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static inline bool is_rd890_iommu(struct pci_dev *pdev)
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{
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|
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@ -129,10 +131,9 @@ static inline void *alloc_pgtable_page(int nid, gfp_t gfp)
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return page ? page_address(page) : NULL;
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}
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extern bool translation_pre_enabled(struct amd_iommu *iommu);
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extern bool amd_iommu_is_attach_deferred(struct device *dev);
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extern int __init add_special_device(u8 type, u8 id, u32 *devid,
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bool cmd_line);
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bool translation_pre_enabled(struct amd_iommu *iommu);
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bool amd_iommu_is_attach_deferred(struct device *dev);
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int __init add_special_device(u8 type, u8 id, u32 *devid, bool cmd_line);
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#ifdef CONFIG_DMI
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void amd_iommu_apply_ivrs_quirks(void);
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|
|
@ -140,9 +141,9 @@ void amd_iommu_apply_ivrs_quirks(void);
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static inline void amd_iommu_apply_ivrs_quirks(void) { }
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#endif
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extern void amd_iommu_domain_set_pgtable(struct protection_domain *domain,
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u64 *root, int mode);
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extern struct dev_table_entry *get_dev_table(struct amd_iommu *iommu);
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void amd_iommu_domain_set_pgtable(struct protection_domain *domain,
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u64 *root, int mode);
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struct dev_table_entry *get_dev_table(struct amd_iommu *iommu);
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extern u64 amd_iommu_efr;
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extern u64 amd_iommu_efr2;
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|
|
|
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|
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@ -84,21 +84,21 @@
|
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|
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|
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/* Extended Feature Bits */
|
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#define FEATURE_PREFETCH (1ULL<<0)
|
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#define FEATURE_PPR (1ULL<<1)
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#define FEATURE_X2APIC (1ULL<<2)
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#define FEATURE_NX (1ULL<<3)
|
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#define FEATURE_GT (1ULL<<4)
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#define FEATURE_IA (1ULL<<6)
|
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#define FEATURE_GA (1ULL<<7)
|
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#define FEATURE_HE (1ULL<<8)
|
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#define FEATURE_PC (1ULL<<9)
|
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#define FEATURE_PREFETCH BIT_ULL(0)
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#define FEATURE_PPR BIT_ULL(1)
|
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#define FEATURE_X2APIC BIT_ULL(2)
|
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#define FEATURE_NX BIT_ULL(3)
|
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#define FEATURE_GT BIT_ULL(4)
|
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#define FEATURE_IA BIT_ULL(6)
|
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#define FEATURE_GA BIT_ULL(7)
|
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#define FEATURE_HE BIT_ULL(8)
|
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#define FEATURE_PC BIT_ULL(9)
|
||||
#define FEATURE_GATS_SHIFT (12)
|
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#define FEATURE_GATS_MASK (3ULL)
|
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#define FEATURE_GAM_VAPIC (1ULL<<21)
|
||||
#define FEATURE_GIOSUP (1ULL<<48)
|
||||
#define FEATURE_EPHSUP (1ULL<<50)
|
||||
#define FEATURE_SNP (1ULL<<63)
|
||||
#define FEATURE_GAM_VAPIC BIT_ULL(21)
|
||||
#define FEATURE_GIOSUP BIT_ULL(48)
|
||||
#define FEATURE_EPHSUP BIT_ULL(50)
|
||||
#define FEATURE_SNP BIT_ULL(63)
|
||||
|
||||
#define FEATURE_PASID_SHIFT 32
|
||||
#define FEATURE_PASID_MASK (0x1fULL << FEATURE_PASID_SHIFT)
|
||||
|
|
@ -120,13 +120,13 @@
|
|||
#define PASID_MASK 0x0000ffff
|
||||
|
||||
/* MMIO status bits */
|
||||
#define MMIO_STATUS_EVT_OVERFLOW_INT_MASK (1 << 0)
|
||||
#define MMIO_STATUS_EVT_INT_MASK (1 << 1)
|
||||
#define MMIO_STATUS_COM_WAIT_INT_MASK (1 << 2)
|
||||
#define MMIO_STATUS_PPR_INT_MASK (1 << 6)
|
||||
#define MMIO_STATUS_GALOG_RUN_MASK (1 << 8)
|
||||
#define MMIO_STATUS_GALOG_OVERFLOW_MASK (1 << 9)
|
||||
#define MMIO_STATUS_GALOG_INT_MASK (1 << 10)
|
||||
#define MMIO_STATUS_EVT_OVERFLOW_INT_MASK BIT(0)
|
||||
#define MMIO_STATUS_EVT_INT_MASK BIT(1)
|
||||
#define MMIO_STATUS_COM_WAIT_INT_MASK BIT(2)
|
||||
#define MMIO_STATUS_PPR_INT_MASK BIT(6)
|
||||
#define MMIO_STATUS_GALOG_RUN_MASK BIT(8)
|
||||
#define MMIO_STATUS_GALOG_OVERFLOW_MASK BIT(9)
|
||||
#define MMIO_STATUS_GALOG_INT_MASK BIT(10)
|
||||
|
||||
/* event logging constants */
|
||||
#define EVENT_ENTRY_SIZE 0x10
|
||||
|
|
@ -174,6 +174,7 @@
|
|||
#define CONTROL_GAINT_EN 29
|
||||
#define CONTROL_XT_EN 50
|
||||
#define CONTROL_INTCAPXT_EN 51
|
||||
#define CONTROL_IRTCACHEDIS 59
|
||||
#define CONTROL_SNPAVIC_EN 61
|
||||
|
||||
#define CTRL_INV_TO_MASK (7 << CONTROL_INV_TIMEOUT)
|
||||
|
|
@ -283,7 +284,7 @@
|
|||
#define AMD_IOMMU_PGSIZES_V2 (PAGE_SIZE | (1ULL << 21) | (1ULL << 30))
|
||||
|
||||
/* Bit value definition for dte irq remapping fields*/
|
||||
#define DTE_IRQ_PHYS_ADDR_MASK (((1ULL << 45)-1) << 6)
|
||||
#define DTE_IRQ_PHYS_ADDR_MASK GENMASK_ULL(51, 6)
|
||||
#define DTE_IRQ_REMAP_INTCTL_MASK (0x3ULL << 60)
|
||||
#define DTE_IRQ_REMAP_INTCTL (2ULL << 60)
|
||||
#define DTE_IRQ_REMAP_ENABLE 1ULL
|
||||
|
|
@ -369,23 +370,23 @@
|
|||
/*
|
||||
* Bit value definition for I/O PTE fields
|
||||
*/
|
||||
#define IOMMU_PTE_PR (1ULL << 0)
|
||||
#define IOMMU_PTE_U (1ULL << 59)
|
||||
#define IOMMU_PTE_FC (1ULL << 60)
|
||||
#define IOMMU_PTE_IR (1ULL << 61)
|
||||
#define IOMMU_PTE_IW (1ULL << 62)
|
||||
#define IOMMU_PTE_PR BIT_ULL(0)
|
||||
#define IOMMU_PTE_U BIT_ULL(59)
|
||||
#define IOMMU_PTE_FC BIT_ULL(60)
|
||||
#define IOMMU_PTE_IR BIT_ULL(61)
|
||||
#define IOMMU_PTE_IW BIT_ULL(62)
|
||||
|
||||
/*
|
||||
* Bit value definition for DTE fields
|
||||
*/
|
||||
#define DTE_FLAG_V (1ULL << 0)
|
||||
#define DTE_FLAG_TV (1ULL << 1)
|
||||
#define DTE_FLAG_IR (1ULL << 61)
|
||||
#define DTE_FLAG_IW (1ULL << 62)
|
||||
#define DTE_FLAG_V BIT_ULL(0)
|
||||
#define DTE_FLAG_TV BIT_ULL(1)
|
||||
#define DTE_FLAG_IR BIT_ULL(61)
|
||||
#define DTE_FLAG_IW BIT_ULL(62)
|
||||
|
||||
#define DTE_FLAG_IOTLB (1ULL << 32)
|
||||
#define DTE_FLAG_GIOV (1ULL << 54)
|
||||
#define DTE_FLAG_GV (1ULL << 55)
|
||||
#define DTE_FLAG_IOTLB BIT_ULL(32)
|
||||
#define DTE_FLAG_GIOV BIT_ULL(54)
|
||||
#define DTE_FLAG_GV BIT_ULL(55)
|
||||
#define DTE_FLAG_MASK (0x3ffULL << 32)
|
||||
#define DTE_GLX_SHIFT (56)
|
||||
#define DTE_GLX_MASK (3)
|
||||
|
|
@ -439,13 +440,13 @@
|
|||
#define MAX_DOMAIN_ID 65536
|
||||
|
||||
/* Protection domain flags */
|
||||
#define PD_DMA_OPS_MASK (1UL << 0) /* domain used for dma_ops */
|
||||
#define PD_DEFAULT_MASK (1UL << 1) /* domain is a default dma_ops
|
||||
#define PD_DMA_OPS_MASK BIT(0) /* domain used for dma_ops */
|
||||
#define PD_DEFAULT_MASK BIT(1) /* domain is a default dma_ops
|
||||
domain for an IOMMU */
|
||||
#define PD_PASSTHROUGH_MASK (1UL << 2) /* domain has no page
|
||||
#define PD_PASSTHROUGH_MASK BIT(2) /* domain has no page
|
||||
translation */
|
||||
#define PD_IOMMUV2_MASK (1UL << 3) /* domain has gcr3 table */
|
||||
#define PD_GIOV_MASK (1UL << 4) /* domain enable GIOV support */
|
||||
#define PD_IOMMUV2_MASK BIT(3) /* domain has gcr3 table */
|
||||
#define PD_GIOV_MASK BIT(4) /* domain enable GIOV support */
|
||||
|
||||
extern bool amd_iommu_dump;
|
||||
#define DUMP_printk(format, arg...) \
|
||||
|
|
@ -716,6 +717,9 @@ struct amd_iommu {
|
|||
/* if one, we need to send a completion wait command */
|
||||
bool need_sync;
|
||||
|
||||
/* true if disable irte caching */
|
||||
bool irtcachedis_enabled;
|
||||
|
||||
/* Handle for IOMMU core code */
|
||||
struct iommu_device iommu;
|
||||
|
||||
|
|
@ -748,7 +752,7 @@ struct amd_iommu {
|
|||
|
||||
u32 flags;
|
||||
volatile u64 *cmd_sem;
|
||||
u64 cmd_sem_val;
|
||||
atomic64_t cmd_sem_val;
|
||||
|
||||
#ifdef CONFIG_AMD_IOMMU_DEBUGFS
|
||||
/* DebugFS Info */
|
||||
|
|
@ -882,7 +886,7 @@ extern int amd_iommu_max_glx_val;
|
|||
* This function flushes all internal caches of
|
||||
* the IOMMU used by this driver.
|
||||
*/
|
||||
extern void iommu_flush_all_caches(struct amd_iommu *iommu);
|
||||
void iommu_flush_all_caches(struct amd_iommu *iommu);
|
||||
|
||||
static inline int get_ioapic_devid(int id)
|
||||
{
|
||||
|
|
@ -1006,7 +1010,6 @@ struct amd_ir_data {
|
|||
struct irq_2_irte irq_2_irte;
|
||||
struct msi_msg msi_entry;
|
||||
void *entry; /* Pointer to union irte or struct irte_ga */
|
||||
void *ref; /* Pointer to the actual irte */
|
||||
|
||||
/**
|
||||
* Store information for activate/de-activate
|
||||
|
|
|
|||
|
|
@ -162,6 +162,7 @@ static int amd_iommu_xt_mode = IRQ_REMAP_XAPIC_MODE;
|
|||
static bool amd_iommu_detected;
|
||||
static bool amd_iommu_disabled __initdata;
|
||||
static bool amd_iommu_force_enable __initdata;
|
||||
static bool amd_iommu_irtcachedis;
|
||||
static int amd_iommu_target_ivhd_type;
|
||||
|
||||
/* Global EFR and EFR2 registers */
|
||||
|
|
@ -484,6 +485,9 @@ static void iommu_disable(struct amd_iommu *iommu)
|
|||
|
||||
/* Disable IOMMU hardware itself */
|
||||
iommu_feature_disable(iommu, CONTROL_IOMMU_EN);
|
||||
|
||||
/* Clear IRTE cache disabling bit */
|
||||
iommu_feature_disable(iommu, CONTROL_IRTCACHEDIS);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1753,7 +1757,7 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h,
|
|||
iommu->pci_seg = pci_seg;
|
||||
|
||||
raw_spin_lock_init(&iommu->lock);
|
||||
iommu->cmd_sem_val = 0;
|
||||
atomic64_set(&iommu->cmd_sem_val, 0);
|
||||
|
||||
/* Add IOMMU to internal data structures */
|
||||
list_add_tail(&iommu->list, &amd_iommu_list);
|
||||
|
|
@ -2710,6 +2714,33 @@ static void iommu_enable_ga(struct amd_iommu *iommu)
|
|||
#endif
|
||||
}
|
||||
|
||||
static void iommu_disable_irtcachedis(struct amd_iommu *iommu)
|
||||
{
|
||||
iommu_feature_disable(iommu, CONTROL_IRTCACHEDIS);
|
||||
}
|
||||
|
||||
static void iommu_enable_irtcachedis(struct amd_iommu *iommu)
|
||||
{
|
||||
u64 ctrl;
|
||||
|
||||
if (!amd_iommu_irtcachedis)
|
||||
return;
|
||||
|
||||
/*
|
||||
* Note:
|
||||
* The support for IRTCacheDis feature is dertermined by
|
||||
* checking if the bit is writable.
|
||||
*/
|
||||
iommu_feature_enable(iommu, CONTROL_IRTCACHEDIS);
|
||||
ctrl = readq(iommu->mmio_base + MMIO_CONTROL_OFFSET);
|
||||
ctrl &= (1ULL << CONTROL_IRTCACHEDIS);
|
||||
if (ctrl)
|
||||
iommu->irtcachedis_enabled = true;
|
||||
pr_info("iommu%d (%#06x) : IRT cache is %s\n",
|
||||
iommu->index, iommu->devid,
|
||||
iommu->irtcachedis_enabled ? "disabled" : "enabled");
|
||||
}
|
||||
|
||||
static void early_enable_iommu(struct amd_iommu *iommu)
|
||||
{
|
||||
iommu_disable(iommu);
|
||||
|
|
@ -2720,6 +2751,7 @@ static void early_enable_iommu(struct amd_iommu *iommu)
|
|||
iommu_set_exclusion_range(iommu);
|
||||
iommu_enable_ga(iommu);
|
||||
iommu_enable_xt(iommu);
|
||||
iommu_enable_irtcachedis(iommu);
|
||||
iommu_enable(iommu);
|
||||
iommu_flush_all_caches(iommu);
|
||||
}
|
||||
|
|
@ -2770,10 +2802,12 @@ static void early_enable_iommus(void)
|
|||
for_each_iommu(iommu) {
|
||||
iommu_disable_command_buffer(iommu);
|
||||
iommu_disable_event_buffer(iommu);
|
||||
iommu_disable_irtcachedis(iommu);
|
||||
iommu_enable_command_buffer(iommu);
|
||||
iommu_enable_event_buffer(iommu);
|
||||
iommu_enable_ga(iommu);
|
||||
iommu_enable_xt(iommu);
|
||||
iommu_enable_irtcachedis(iommu);
|
||||
iommu_set_device_table(iommu);
|
||||
iommu_flush_all_caches(iommu);
|
||||
}
|
||||
|
|
@ -3426,6 +3460,8 @@ static int __init parse_amd_iommu_options(char *str)
|
|||
amd_iommu_pgtable = AMD_IOMMU_V1;
|
||||
} else if (strncmp(str, "pgtbl_v2", 8) == 0) {
|
||||
amd_iommu_pgtable = AMD_IOMMU_V2;
|
||||
} else if (strncmp(str, "irtcachedis", 11) == 0) {
|
||||
amd_iommu_irtcachedis = true;
|
||||
} else {
|
||||
pr_notice("Unknown option - '%s'\n", str);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -310,8 +310,8 @@ static u64 *fetch_pte(struct amd_io_pgtable *pgtable,
|
|||
return NULL;
|
||||
|
||||
/* Large PTE */
|
||||
if (PM_PTE_LEVEL(*pte) == 7 ||
|
||||
PM_PTE_LEVEL(*pte) == 0)
|
||||
if (PM_PTE_LEVEL(*pte) == PAGE_MODE_7_LEVEL ||
|
||||
PM_PTE_LEVEL(*pte) == PAGE_MODE_NONE)
|
||||
break;
|
||||
|
||||
/* No level skipping support yet */
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@
|
|||
/*
|
||||
* CPU-agnostic AMD IO page table v2 allocator.
|
||||
*
|
||||
* Copyright (C) 2022 Advanced Micro Devices, Inc.
|
||||
* Copyright (C) 2022, 2023 Advanced Micro Devices, Inc.
|
||||
* Author: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
|
||||
* Author: Vasant Hegde <vasant.hegde@amd.com>
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -1182,11 +1182,11 @@ static int iommu_completion_wait(struct amd_iommu *iommu)
|
|||
if (!iommu->need_sync)
|
||||
return 0;
|
||||
|
||||
raw_spin_lock_irqsave(&iommu->lock, flags);
|
||||
|
||||
data = ++iommu->cmd_sem_val;
|
||||
data = atomic64_add_return(1, &iommu->cmd_sem_val);
|
||||
build_completion_wait(&cmd, iommu, data);
|
||||
|
||||
raw_spin_lock_irqsave(&iommu->lock, flags);
|
||||
|
||||
ret = __iommu_queue_command_sync(iommu, &cmd, false);
|
||||
if (ret)
|
||||
goto out_unlock;
|
||||
|
|
@ -1273,6 +1273,9 @@ static void amd_iommu_flush_irt_all(struct amd_iommu *iommu)
|
|||
u32 devid;
|
||||
u16 last_bdf = iommu->pci_seg->last_bdf;
|
||||
|
||||
if (iommu->irtcachedis_enabled)
|
||||
return;
|
||||
|
||||
for (devid = 0; devid <= last_bdf; devid++)
|
||||
iommu_flush_irt(iommu, devid);
|
||||
|
||||
|
|
@ -2313,6 +2316,8 @@ static bool amd_iommu_capable(struct device *dev, enum iommu_cap cap)
|
|||
return amdr_ivrs_remap_support;
|
||||
case IOMMU_CAP_ENFORCE_CACHE_COHERENCY:
|
||||
return true;
|
||||
case IOMMU_CAP_DEFERRED_FLUSH:
|
||||
return true;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
|
@ -2822,6 +2827,32 @@ EXPORT_SYMBOL(amd_iommu_device_info);
|
|||
static struct irq_chip amd_ir_chip;
|
||||
static DEFINE_SPINLOCK(iommu_table_lock);
|
||||
|
||||
static void iommu_flush_irt_and_complete(struct amd_iommu *iommu, u16 devid)
|
||||
{
|
||||
int ret;
|
||||
u64 data;
|
||||
unsigned long flags;
|
||||
struct iommu_cmd cmd, cmd2;
|
||||
|
||||
if (iommu->irtcachedis_enabled)
|
||||
return;
|
||||
|
||||
build_inv_irt(&cmd, devid);
|
||||
data = atomic64_add_return(1, &iommu->cmd_sem_val);
|
||||
build_completion_wait(&cmd2, iommu, data);
|
||||
|
||||
raw_spin_lock_irqsave(&iommu->lock, flags);
|
||||
ret = __iommu_queue_command_sync(iommu, &cmd, true);
|
||||
if (ret)
|
||||
goto out;
|
||||
ret = __iommu_queue_command_sync(iommu, &cmd2, false);
|
||||
if (ret)
|
||||
goto out;
|
||||
wait_on_sem(iommu, data);
|
||||
out:
|
||||
raw_spin_unlock_irqrestore(&iommu->lock, flags);
|
||||
}
|
||||
|
||||
static void set_dte_irq_entry(struct amd_iommu *iommu, u16 devid,
|
||||
struct irq_remap_table *table)
|
||||
{
|
||||
|
|
@ -3021,7 +3052,7 @@ out:
|
|||
}
|
||||
|
||||
static int modify_irte_ga(struct amd_iommu *iommu, u16 devid, int index,
|
||||
struct irte_ga *irte, struct amd_ir_data *data)
|
||||
struct irte_ga *irte)
|
||||
{
|
||||
struct irq_remap_table *table;
|
||||
struct irte_ga *entry;
|
||||
|
|
@ -3046,13 +3077,9 @@ static int modify_irte_ga(struct amd_iommu *iommu, u16 devid, int index,
|
|||
old = entry->irte;
|
||||
WARN_ON(!try_cmpxchg128(&entry->irte, &old, irte->irte));
|
||||
|
||||
if (data)
|
||||
data->ref = entry;
|
||||
|
||||
raw_spin_unlock_irqrestore(&table->lock, flags);
|
||||
|
||||
iommu_flush_irt(iommu, devid);
|
||||
iommu_completion_wait(iommu);
|
||||
iommu_flush_irt_and_complete(iommu, devid);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -3071,8 +3098,7 @@ static int modify_irte(struct amd_iommu *iommu,
|
|||
table->table[index] = irte->val;
|
||||
raw_spin_unlock_irqrestore(&table->lock, flags);
|
||||
|
||||
iommu_flush_irt(iommu, devid);
|
||||
iommu_completion_wait(iommu);
|
||||
iommu_flush_irt_and_complete(iommu, devid);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -3090,8 +3116,7 @@ static void free_irte(struct amd_iommu *iommu, u16 devid, int index)
|
|||
iommu->irte_ops->clear_allocated(table, index);
|
||||
raw_spin_unlock_irqrestore(&table->lock, flags);
|
||||
|
||||
iommu_flush_irt(iommu, devid);
|
||||
iommu_completion_wait(iommu);
|
||||
iommu_flush_irt_and_complete(iommu, devid);
|
||||
}
|
||||
|
||||
static void irte_prepare(void *entry,
|
||||
|
|
@ -3137,7 +3162,7 @@ static void irte_ga_activate(struct amd_iommu *iommu, void *entry, u16 devid, u1
|
|||
struct irte_ga *irte = (struct irte_ga *) entry;
|
||||
|
||||
irte->lo.fields_remap.valid = 1;
|
||||
modify_irte_ga(iommu, devid, index, irte, NULL);
|
||||
modify_irte_ga(iommu, devid, index, irte);
|
||||
}
|
||||
|
||||
static void irte_deactivate(struct amd_iommu *iommu, void *entry, u16 devid, u16 index)
|
||||
|
|
@ -3153,7 +3178,7 @@ static void irte_ga_deactivate(struct amd_iommu *iommu, void *entry, u16 devid,
|
|||
struct irte_ga *irte = (struct irte_ga *) entry;
|
||||
|
||||
irte->lo.fields_remap.valid = 0;
|
||||
modify_irte_ga(iommu, devid, index, irte, NULL);
|
||||
modify_irte_ga(iommu, devid, index, irte);
|
||||
}
|
||||
|
||||
static void irte_set_affinity(struct amd_iommu *iommu, void *entry, u16 devid, u16 index,
|
||||
|
|
@ -3177,7 +3202,7 @@ static void irte_ga_set_affinity(struct amd_iommu *iommu, void *entry, u16 devid
|
|||
APICID_TO_IRTE_DEST_LO(dest_apicid);
|
||||
irte->hi.fields.destination =
|
||||
APICID_TO_IRTE_DEST_HI(dest_apicid);
|
||||
modify_irte_ga(iommu, devid, index, irte, NULL);
|
||||
modify_irte_ga(iommu, devid, index, irte);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -3527,7 +3552,7 @@ int amd_iommu_activate_guest_mode(void *data)
|
|||
entry->lo.fields_vapic.ga_tag = ir_data->ga_tag;
|
||||
|
||||
return modify_irte_ga(ir_data->iommu, ir_data->irq_2_irte.devid,
|
||||
ir_data->irq_2_irte.index, entry, ir_data);
|
||||
ir_data->irq_2_irte.index, entry);
|
||||
}
|
||||
EXPORT_SYMBOL(amd_iommu_activate_guest_mode);
|
||||
|
||||
|
|
@ -3557,7 +3582,7 @@ int amd_iommu_deactivate_guest_mode(void *data)
|
|||
APICID_TO_IRTE_DEST_HI(cfg->dest_apicid);
|
||||
|
||||
return modify_irte_ga(ir_data->iommu, ir_data->irq_2_irte.devid,
|
||||
ir_data->irq_2_irte.index, entry, ir_data);
|
||||
ir_data->irq_2_irte.index, entry);
|
||||
}
|
||||
EXPORT_SYMBOL(amd_iommu_deactivate_guest_mode);
|
||||
|
||||
|
|
@ -3719,44 +3744,26 @@ int amd_iommu_create_irq_domain(struct amd_iommu *iommu)
|
|||
|
||||
int amd_iommu_update_ga(int cpu, bool is_run, void *data)
|
||||
{
|
||||
unsigned long flags;
|
||||
struct amd_iommu *iommu;
|
||||
struct irq_remap_table *table;
|
||||
struct amd_ir_data *ir_data = (struct amd_ir_data *)data;
|
||||
int devid = ir_data->irq_2_irte.devid;
|
||||
struct irte_ga *entry = (struct irte_ga *) ir_data->entry;
|
||||
struct irte_ga *ref = (struct irte_ga *) ir_data->ref;
|
||||
|
||||
if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) ||
|
||||
!ref || !entry || !entry->lo.fields_vapic.guest_mode)
|
||||
!entry || !entry->lo.fields_vapic.guest_mode)
|
||||
return 0;
|
||||
|
||||
iommu = ir_data->iommu;
|
||||
if (!iommu)
|
||||
if (!ir_data->iommu)
|
||||
return -ENODEV;
|
||||
|
||||
table = get_irq_table(iommu, devid);
|
||||
if (!table)
|
||||
return -ENODEV;
|
||||
|
||||
raw_spin_lock_irqsave(&table->lock, flags);
|
||||
|
||||
if (ref->lo.fields_vapic.guest_mode) {
|
||||
if (cpu >= 0) {
|
||||
ref->lo.fields_vapic.destination =
|
||||
APICID_TO_IRTE_DEST_LO(cpu);
|
||||
ref->hi.fields.destination =
|
||||
APICID_TO_IRTE_DEST_HI(cpu);
|
||||
}
|
||||
ref->lo.fields_vapic.is_run = is_run;
|
||||
barrier();
|
||||
if (cpu >= 0) {
|
||||
entry->lo.fields_vapic.destination =
|
||||
APICID_TO_IRTE_DEST_LO(cpu);
|
||||
entry->hi.fields.destination =
|
||||
APICID_TO_IRTE_DEST_HI(cpu);
|
||||
}
|
||||
entry->lo.fields_vapic.is_run = is_run;
|
||||
|
||||
raw_spin_unlock_irqrestore(&table->lock, flags);
|
||||
|
||||
iommu_flush_irt(iommu, devid);
|
||||
iommu_completion_wait(iommu);
|
||||
return 0;
|
||||
return modify_irte_ga(ir_data->iommu, ir_data->irq_2_irte.devid,
|
||||
ir_data->irq_2_irte.index, entry);
|
||||
}
|
||||
EXPORT_SYMBOL(amd_iommu_update_ga);
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -894,6 +894,12 @@ static void arm_smmu_cmdq_batch_add(struct arm_smmu_device *smmu,
|
|||
{
|
||||
int index;
|
||||
|
||||
if (cmds->num == CMDQ_BATCH_ENTRIES - 1 &&
|
||||
(smmu->options & ARM_SMMU_OPT_CMDQ_FORCE_SYNC)) {
|
||||
arm_smmu_cmdq_issue_cmdlist(smmu, cmds->cmds, cmds->num, true);
|
||||
cmds->num = 0;
|
||||
}
|
||||
|
||||
if (cmds->num == CMDQ_BATCH_ENTRIES) {
|
||||
arm_smmu_cmdq_issue_cmdlist(smmu, cmds->cmds, cmds->num, false);
|
||||
cmds->num = 0;
|
||||
|
|
@ -1892,8 +1898,13 @@ static void __arm_smmu_tlb_inv_range(struct arm_smmu_cmdq_ent *cmd,
|
|||
/* Convert page size of 12,14,16 (log2) to 1,2,3 */
|
||||
cmd->tlbi.tg = (tg - 10) / 2;
|
||||
|
||||
/* Determine what level the granule is at */
|
||||
cmd->tlbi.ttl = 4 - ((ilog2(granule) - 3) / (tg - 3));
|
||||
/*
|
||||
* Determine what level the granule is at. For non-leaf, io-pgtable
|
||||
* assumes .tlb_flush_walk can invalidate multiple levels at once,
|
||||
* so ignore the nominal last-level granule and leave TTL=0.
|
||||
*/
|
||||
if (cmd->tlbi.leaf)
|
||||
cmd->tlbi.ttl = 4 - ((ilog2(granule) - 3) / (tg - 3));
|
||||
|
||||
num_pages = size >> tg;
|
||||
}
|
||||
|
|
@ -2008,6 +2019,7 @@ static bool arm_smmu_capable(struct device *dev, enum iommu_cap cap)
|
|||
/* Assume that a coherent TCU implies coherent TBUs */
|
||||
return master->smmu->features & ARM_SMMU_FEAT_COHERENCY;
|
||||
case IOMMU_CAP_NOEXEC:
|
||||
case IOMMU_CAP_DEFERRED_FLUSH:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
|
|
@ -2023,7 +2035,6 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type)
|
|||
|
||||
if (type != IOMMU_DOMAIN_UNMANAGED &&
|
||||
type != IOMMU_DOMAIN_DMA &&
|
||||
type != IOMMU_DOMAIN_DMA_FQ &&
|
||||
type != IOMMU_DOMAIN_IDENTITY)
|
||||
return NULL;
|
||||
|
||||
|
|
@ -3429,6 +3440,44 @@ static int arm_smmu_device_reset(struct arm_smmu_device *smmu, bool bypass)
|
|||
return 0;
|
||||
}
|
||||
|
||||
#define IIDR_IMPLEMENTER_ARM 0x43b
|
||||
#define IIDR_PRODUCTID_ARM_MMU_600 0x483
|
||||
#define IIDR_PRODUCTID_ARM_MMU_700 0x487
|
||||
|
||||
static void arm_smmu_device_iidr_probe(struct arm_smmu_device *smmu)
|
||||
{
|
||||
u32 reg;
|
||||
unsigned int implementer, productid, variant, revision;
|
||||
|
||||
reg = readl_relaxed(smmu->base + ARM_SMMU_IIDR);
|
||||
implementer = FIELD_GET(IIDR_IMPLEMENTER, reg);
|
||||
productid = FIELD_GET(IIDR_PRODUCTID, reg);
|
||||
variant = FIELD_GET(IIDR_VARIANT, reg);
|
||||
revision = FIELD_GET(IIDR_REVISION, reg);
|
||||
|
||||
switch (implementer) {
|
||||
case IIDR_IMPLEMENTER_ARM:
|
||||
switch (productid) {
|
||||
case IIDR_PRODUCTID_ARM_MMU_600:
|
||||
/* Arm erratum 1076982 */
|
||||
if (variant == 0 && revision <= 2)
|
||||
smmu->features &= ~ARM_SMMU_FEAT_SEV;
|
||||
/* Arm erratum 1209401 */
|
||||
if (variant < 2)
|
||||
smmu->features &= ~ARM_SMMU_FEAT_NESTING;
|
||||
break;
|
||||
case IIDR_PRODUCTID_ARM_MMU_700:
|
||||
/* Arm erratum 2812531 */
|
||||
smmu->features &= ~ARM_SMMU_FEAT_BTM;
|
||||
smmu->options |= ARM_SMMU_OPT_CMDQ_FORCE_SYNC;
|
||||
/* Arm errata 2268618, 2812531 */
|
||||
smmu->features &= ~ARM_SMMU_FEAT_NESTING;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static int arm_smmu_device_hw_probe(struct arm_smmu_device *smmu)
|
||||
{
|
||||
u32 reg;
|
||||
|
|
@ -3635,6 +3684,12 @@ static int arm_smmu_device_hw_probe(struct arm_smmu_device *smmu)
|
|||
|
||||
smmu->ias = max(smmu->ias, smmu->oas);
|
||||
|
||||
if ((smmu->features & ARM_SMMU_FEAT_TRANS_S1) &&
|
||||
(smmu->features & ARM_SMMU_FEAT_TRANS_S2))
|
||||
smmu->features |= ARM_SMMU_FEAT_NESTING;
|
||||
|
||||
arm_smmu_device_iidr_probe(smmu);
|
||||
|
||||
if (arm_smmu_sva_supported(smmu))
|
||||
smmu->features |= ARM_SMMU_FEAT_SVA;
|
||||
|
||||
|
|
|
|||
|
|
@ -69,6 +69,12 @@
|
|||
#define IDR5_VAX GENMASK(11, 10)
|
||||
#define IDR5_VAX_52_BIT 1
|
||||
|
||||
#define ARM_SMMU_IIDR 0x18
|
||||
#define IIDR_PRODUCTID GENMASK(31, 20)
|
||||
#define IIDR_VARIANT GENMASK(19, 16)
|
||||
#define IIDR_REVISION GENMASK(15, 12)
|
||||
#define IIDR_IMPLEMENTER GENMASK(11, 0)
|
||||
|
||||
#define ARM_SMMU_CR0 0x20
|
||||
#define CR0_ATSCHK (1 << 4)
|
||||
#define CR0_CMDQEN (1 << 3)
|
||||
|
|
@ -639,11 +645,13 @@ struct arm_smmu_device {
|
|||
#define ARM_SMMU_FEAT_BTM (1 << 16)
|
||||
#define ARM_SMMU_FEAT_SVA (1 << 17)
|
||||
#define ARM_SMMU_FEAT_E2H (1 << 18)
|
||||
#define ARM_SMMU_FEAT_NESTING (1 << 19)
|
||||
u32 features;
|
||||
|
||||
#define ARM_SMMU_OPT_SKIP_PREFETCH (1 << 0)
|
||||
#define ARM_SMMU_OPT_PAGE0_REGS_ONLY (1 << 1)
|
||||
#define ARM_SMMU_OPT_MSIPOLL (1 << 2)
|
||||
#define ARM_SMMU_OPT_CMDQ_FORCE_SYNC (1 << 3)
|
||||
u32 options;
|
||||
|
||||
struct arm_smmu_cmdq cmdq;
|
||||
|
|
|
|||
|
|
@ -856,8 +856,7 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type)
|
|||
struct arm_smmu_domain *smmu_domain;
|
||||
|
||||
if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_IDENTITY) {
|
||||
if (using_legacy_binding ||
|
||||
(type != IOMMU_DOMAIN_DMA && type != IOMMU_DOMAIN_DMA_FQ))
|
||||
if (using_legacy_binding || type != IOMMU_DOMAIN_DMA)
|
||||
return NULL;
|
||||
}
|
||||
/*
|
||||
|
|
@ -1325,6 +1324,7 @@ static bool arm_smmu_capable(struct device *dev, enum iommu_cap cap)
|
|||
return cfg->smmu->features & ARM_SMMU_FEAT_COHERENT_WALK ||
|
||||
device_get_dma_attr(dev) == DEV_DMA_COHERENT;
|
||||
case IOMMU_CAP_NOEXEC:
|
||||
case IOMMU_CAP_DEFERRED_FLUSH:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
|
|
|
|||
|
|
@ -615,7 +615,8 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
|
|||
goto done_unlock;
|
||||
|
||||
/* If the FQ fails we can simply fall back to strict mode */
|
||||
if (domain->type == IOMMU_DOMAIN_DMA_FQ && iommu_dma_init_fq(domain))
|
||||
if (domain->type == IOMMU_DOMAIN_DMA_FQ &&
|
||||
(!device_iommu_capable(dev, IOMMU_CAP_DEFERRED_FLUSH) || iommu_dma_init_fq(domain)))
|
||||
domain->type = IOMMU_DOMAIN_DMA;
|
||||
|
||||
ret = iova_reserve_iommu_regions(dev, domain);
|
||||
|
|
|
|||
|
|
@ -334,17 +334,6 @@ int fsl_pamu_configure_l1_stash(struct iommu_domain *domain, u32 cpu)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static struct iommu_group *get_device_iommu_group(struct device *dev)
|
||||
{
|
||||
struct iommu_group *group;
|
||||
|
||||
group = iommu_group_get(dev);
|
||||
if (!group)
|
||||
group = iommu_group_alloc();
|
||||
|
||||
return group;
|
||||
}
|
||||
|
||||
static bool check_pci_ctl_endpt_part(struct pci_controller *pci_ctl)
|
||||
{
|
||||
u32 version;
|
||||
|
|
@ -356,94 +345,52 @@ static bool check_pci_ctl_endpt_part(struct pci_controller *pci_ctl)
|
|||
return version >= 0x204;
|
||||
}
|
||||
|
||||
/* Get iommu group information from peer devices or devices on the parent bus */
|
||||
static struct iommu_group *get_shared_pci_device_group(struct pci_dev *pdev)
|
||||
{
|
||||
struct pci_dev *tmp;
|
||||
struct iommu_group *group;
|
||||
struct pci_bus *bus = pdev->bus;
|
||||
|
||||
/*
|
||||
* Traverese the pci bus device list to get
|
||||
* the shared iommu group.
|
||||
*/
|
||||
while (bus) {
|
||||
list_for_each_entry(tmp, &bus->devices, bus_list) {
|
||||
if (tmp == pdev)
|
||||
continue;
|
||||
group = iommu_group_get(&tmp->dev);
|
||||
if (group)
|
||||
return group;
|
||||
}
|
||||
|
||||
bus = bus->parent;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct iommu_group *get_pci_device_group(struct pci_dev *pdev)
|
||||
{
|
||||
struct pci_controller *pci_ctl;
|
||||
bool pci_endpt_partitioning;
|
||||
struct iommu_group *group = NULL;
|
||||
|
||||
pci_ctl = pci_bus_to_host(pdev->bus);
|
||||
pci_endpt_partitioning = check_pci_ctl_endpt_part(pci_ctl);
|
||||
/* We can partition PCIe devices so assign device group to the device */
|
||||
if (pci_endpt_partitioning) {
|
||||
group = pci_device_group(&pdev->dev);
|
||||
|
||||
/*
|
||||
* PCIe controller is not a paritionable entity
|
||||
* free the controller device iommu_group.
|
||||
*/
|
||||
if (pci_ctl->parent->iommu_group)
|
||||
iommu_group_remove_device(pci_ctl->parent);
|
||||
} else {
|
||||
/*
|
||||
* All devices connected to the controller will share the
|
||||
* PCI controllers device group. If this is the first
|
||||
* device to be probed for the pci controller, copy the
|
||||
* device group information from the PCI controller device
|
||||
* node and remove the PCI controller iommu group.
|
||||
* For subsequent devices, the iommu group information can
|
||||
* be obtained from sibling devices (i.e. from the bus_devices
|
||||
* link list).
|
||||
*/
|
||||
if (pci_ctl->parent->iommu_group) {
|
||||
group = get_device_iommu_group(pci_ctl->parent);
|
||||
iommu_group_remove_device(pci_ctl->parent);
|
||||
} else {
|
||||
group = get_shared_pci_device_group(pdev);
|
||||
}
|
||||
}
|
||||
|
||||
if (!group)
|
||||
group = ERR_PTR(-ENODEV);
|
||||
|
||||
return group;
|
||||
}
|
||||
|
||||
static struct iommu_group *fsl_pamu_device_group(struct device *dev)
|
||||
{
|
||||
struct iommu_group *group = ERR_PTR(-ENODEV);
|
||||
int len;
|
||||
struct iommu_group *group;
|
||||
struct pci_dev *pdev;
|
||||
|
||||
/*
|
||||
* For platform devices we allocate a separate group for
|
||||
* each of the devices.
|
||||
* For platform devices we allocate a separate group for each of the
|
||||
* devices.
|
||||
*/
|
||||
if (dev_is_pci(dev))
|
||||
group = get_pci_device_group(to_pci_dev(dev));
|
||||
else if (of_get_property(dev->of_node, "fsl,liodn", &len))
|
||||
group = get_device_iommu_group(dev);
|
||||
if (!dev_is_pci(dev))
|
||||
return generic_device_group(dev);
|
||||
|
||||
/*
|
||||
* We can partition PCIe devices so assign device group to the device
|
||||
*/
|
||||
pdev = to_pci_dev(dev);
|
||||
if (check_pci_ctl_endpt_part(pci_bus_to_host(pdev->bus)))
|
||||
return pci_device_group(&pdev->dev);
|
||||
|
||||
/*
|
||||
* All devices connected to the controller will share the same device
|
||||
* group.
|
||||
*
|
||||
* Due to ordering between fsl_pamu_init() and fsl_pci_init() it is
|
||||
* guaranteed that the pci_ctl->parent platform_device will have the
|
||||
* iommu driver bound and will already have a group set. So we just
|
||||
* re-use this group as the group for every device in the hose.
|
||||
*/
|
||||
group = iommu_group_get(pci_bus_to_host(pdev->bus)->parent);
|
||||
if (WARN_ON(!group))
|
||||
return ERR_PTR(-EINVAL);
|
||||
return group;
|
||||
}
|
||||
|
||||
static struct iommu_device *fsl_pamu_probe_device(struct device *dev)
|
||||
{
|
||||
int len;
|
||||
|
||||
/*
|
||||
* uboot must fill the fsl,liodn for platform devices to be supported by
|
||||
* the iommu.
|
||||
*/
|
||||
if (!dev_is_pci(dev) &&
|
||||
!of_get_property(dev->of_node, "fsl,liodn", &len))
|
||||
return ERR_PTR(-ENODEV);
|
||||
|
||||
return &pamu_iommu;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1185,7 +1185,7 @@ static int iommu_alloc_root_entry(struct intel_iommu *iommu)
|
|||
{
|
||||
struct root_entry *root;
|
||||
|
||||
root = (struct root_entry *)alloc_pgtable_page(iommu->node, GFP_ATOMIC);
|
||||
root = alloc_pgtable_page(iommu->node, GFP_ATOMIC);
|
||||
if (!root) {
|
||||
pr_err("Allocating root entry for %s failed\n",
|
||||
iommu->name);
|
||||
|
|
@ -1312,15 +1312,7 @@ static void __iommu_flush_iotlb(struct intel_iommu *iommu, u16 did,
|
|||
iommu->name, type);
|
||||
return;
|
||||
}
|
||||
/* Note: set drain read/write */
|
||||
#if 0
|
||||
/*
|
||||
* This is probably to be super secure.. Looks like we can
|
||||
* ignore it without any impact.
|
||||
*/
|
||||
if (cap_read_drain(iommu->cap))
|
||||
val |= DMA_TLB_READ_DRAIN;
|
||||
#endif
|
||||
|
||||
if (cap_write_drain(iommu->cap))
|
||||
val |= DMA_TLB_WRITE_DRAIN;
|
||||
|
||||
|
|
@ -1897,8 +1889,6 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
|
|||
struct context_entry *context;
|
||||
int ret;
|
||||
|
||||
WARN_ON(did == 0);
|
||||
|
||||
if (hw_pass_through && domain_type_is_si(domain))
|
||||
translation = CONTEXT_TT_PASS_THROUGH;
|
||||
|
||||
|
|
@ -1944,8 +1934,6 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
|
|||
if (sm_supported(iommu)) {
|
||||
unsigned long pds;
|
||||
|
||||
WARN_ON(!table);
|
||||
|
||||
/* Setup the PASID DIR pointer: */
|
||||
pds = context_get_sm_pds(table);
|
||||
context->lo = (u64)virt_to_phys(table->table) |
|
||||
|
|
@ -2967,10 +2955,15 @@ static int init_iommu_hw(void)
|
|||
{
|
||||
struct dmar_drhd_unit *drhd;
|
||||
struct intel_iommu *iommu = NULL;
|
||||
int ret;
|
||||
|
||||
for_each_active_iommu(iommu, drhd)
|
||||
if (iommu->qi)
|
||||
dmar_reenable_qi(iommu);
|
||||
for_each_active_iommu(iommu, drhd) {
|
||||
if (iommu->qi) {
|
||||
ret = dmar_reenable_qi(iommu);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
for_each_iommu(iommu, drhd) {
|
||||
if (drhd->ignored) {
|
||||
|
|
@ -4064,7 +4057,6 @@ static struct iommu_domain *intel_iommu_domain_alloc(unsigned type)
|
|||
case IOMMU_DOMAIN_BLOCKED:
|
||||
return &blocking_domain;
|
||||
case IOMMU_DOMAIN_DMA:
|
||||
case IOMMU_DOMAIN_DMA_FQ:
|
||||
case IOMMU_DOMAIN_UNMANAGED:
|
||||
dmar_domain = alloc_domain(type);
|
||||
if (!dmar_domain) {
|
||||
|
|
@ -4369,6 +4361,7 @@ static bool intel_iommu_capable(struct device *dev, enum iommu_cap cap)
|
|||
|
||||
switch (cap) {
|
||||
case IOMMU_CAP_CACHE_COHERENCY:
|
||||
case IOMMU_CAP_DEFERRED_FLUSH:
|
||||
return true;
|
||||
case IOMMU_CAP_PRE_BOOT_PROTECTION:
|
||||
return dmar_platform_optin();
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -647,7 +647,13 @@ struct iova_rcache {
|
|||
|
||||
static struct iova_magazine *iova_magazine_alloc(gfp_t flags)
|
||||
{
|
||||
return kzalloc(sizeof(struct iova_magazine), flags);
|
||||
struct iova_magazine *mag;
|
||||
|
||||
mag = kmalloc(sizeof(*mag), flags);
|
||||
if (mag)
|
||||
mag->size = 0;
|
||||
|
||||
return mag;
|
||||
}
|
||||
|
||||
static void iova_magazine_free(struct iova_magazine *mag)
|
||||
|
|
|
|||
|
|
@ -788,6 +788,29 @@ static int viommu_attach_dev(struct iommu_domain *domain, struct device *dev)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static void viommu_detach_dev(struct viommu_endpoint *vdev)
|
||||
{
|
||||
int i;
|
||||
struct virtio_iommu_req_detach req;
|
||||
struct viommu_domain *vdomain = vdev->vdomain;
|
||||
struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(vdev->dev);
|
||||
|
||||
if (!vdomain)
|
||||
return;
|
||||
|
||||
req = (struct virtio_iommu_req_detach) {
|
||||
.head.type = VIRTIO_IOMMU_T_DETACH,
|
||||
.domain = cpu_to_le32(vdomain->id),
|
||||
};
|
||||
|
||||
for (i = 0; i < fwspec->num_ids; i++) {
|
||||
req.endpoint = cpu_to_le32(fwspec->ids[i]);
|
||||
WARN_ON(viommu_send_req_sync(vdev->viommu, &req, sizeof(req)));
|
||||
}
|
||||
vdomain->nr_endpoints--;
|
||||
vdev->vdomain = NULL;
|
||||
}
|
||||
|
||||
static int viommu_map_pages(struct iommu_domain *domain, unsigned long iova,
|
||||
phys_addr_t paddr, size_t pgsize, size_t pgcount,
|
||||
int prot, gfp_t gfp, size_t *mapped)
|
||||
|
|
@ -810,25 +833,26 @@ static int viommu_map_pages(struct iommu_domain *domain, unsigned long iova,
|
|||
if (ret)
|
||||
return ret;
|
||||
|
||||
map = (struct virtio_iommu_req_map) {
|
||||
.head.type = VIRTIO_IOMMU_T_MAP,
|
||||
.domain = cpu_to_le32(vdomain->id),
|
||||
.virt_start = cpu_to_le64(iova),
|
||||
.phys_start = cpu_to_le64(paddr),
|
||||
.virt_end = cpu_to_le64(end),
|
||||
.flags = cpu_to_le32(flags),
|
||||
};
|
||||
if (vdomain->nr_endpoints) {
|
||||
map = (struct virtio_iommu_req_map) {
|
||||
.head.type = VIRTIO_IOMMU_T_MAP,
|
||||
.domain = cpu_to_le32(vdomain->id),
|
||||
.virt_start = cpu_to_le64(iova),
|
||||
.phys_start = cpu_to_le64(paddr),
|
||||
.virt_end = cpu_to_le64(end),
|
||||
.flags = cpu_to_le32(flags),
|
||||
};
|
||||
|
||||
if (!vdomain->nr_endpoints)
|
||||
return 0;
|
||||
|
||||
ret = viommu_send_req_sync(vdomain->viommu, &map, sizeof(map));
|
||||
if (ret)
|
||||
viommu_del_mappings(vdomain, iova, end);
|
||||
else if (mapped)
|
||||
ret = viommu_send_req_sync(vdomain->viommu, &map, sizeof(map));
|
||||
if (ret) {
|
||||
viommu_del_mappings(vdomain, iova, end);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
if (mapped)
|
||||
*mapped = size;
|
||||
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static size_t viommu_unmap_pages(struct iommu_domain *domain, unsigned long iova,
|
||||
|
|
@ -990,6 +1014,7 @@ static void viommu_release_device(struct device *dev)
|
|||
{
|
||||
struct viommu_endpoint *vdev = dev_iommu_priv_get(dev);
|
||||
|
||||
viommu_detach_dev(vdev);
|
||||
iommu_put_resv_regions(dev, &vdev->resv_regions);
|
||||
kfree(vdev);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -65,6 +65,7 @@ struct iommu_domain_geometry {
|
|||
|
||||
#define __IOMMU_DOMAIN_SVA (1U << 4) /* Shared process address space */
|
||||
|
||||
#define IOMMU_DOMAIN_ALLOC_FLAGS ~__IOMMU_DOMAIN_DMA_FQ
|
||||
/*
|
||||
* This are the possible domain-types
|
||||
*
|
||||
|
|
@ -127,6 +128,11 @@ enum iommu_cap {
|
|||
* this device.
|
||||
*/
|
||||
IOMMU_CAP_ENFORCE_CACHE_COHERENCY,
|
||||
/*
|
||||
* IOMMU driver does not issue TLB maintenance during .unmap, so can
|
||||
* usefully support the non-strict DMA flush queue.
|
||||
*/
|
||||
IOMMU_CAP_DEFERRED_FLUSH,
|
||||
};
|
||||
|
||||
/* These are the possible reserved region types */
|
||||
|
|
|
|||
Loading…
Reference in New Issue