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
  ...

1 files changed, 45 insertions, 42 deletions

diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h
index ab8aa8f77cc4..dc1db6167927 100644
--- a/drivers/iommu/amd/amd_iommu_types.h
+++ b/drivers/iommu/amd/amd_iommu_types.h
@@ -84,21 +84,21 @@
 
 
 /* Extended Feature Bits */
-#define FEATURE_PREFETCH	(1ULL<<0)
-#define FEATURE_PPR		(1ULL<<1)
-#define FEATURE_X2APIC		(1ULL<<2)
-#define FEATURE_NX		(1ULL<<3)
-#define FEATURE_GT		(1ULL<<4)
-#define FEATURE_IA		(1ULL<<6)
-#define FEATURE_GA		(1ULL<<7)
-#define FEATURE_HE		(1ULL<<8)
-#define FEATURE_PC		(1ULL<<9)
+#define FEATURE_PREFETCH	BIT_ULL(0)
+#define FEATURE_PPR		BIT_ULL(1)
+#define FEATURE_X2APIC		BIT_ULL(2)
+#define FEATURE_NX		BIT_ULL(3)
+#define FEATURE_GT		BIT_ULL(4)
+#define FEATURE_IA		BIT_ULL(6)
+#define FEATURE_GA		BIT_ULL(7)
+#define FEATURE_HE		BIT_ULL(8)
+#define FEATURE_PC		BIT_ULL(9)
 #define FEATURE_GATS_SHIFT	(12)
 #define FEATURE_GATS_MASK	(3ULL)
-#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_IOTLB	(1ULL << 32)
-#define DTE_FLAG_GIOV	(1ULL << 54)
-#define DTE_FLAG_GV	(1ULL << 55)
+#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	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