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path: root/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
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Diffstat (limited to 'drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h')
-rw-r--r--drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h63
1 files changed, 40 insertions, 23 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
index 1242a086c9f9..14bca41a981b 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
@@ -33,6 +33,9 @@
#define IDR0_ASID16 (1 << 12)
#define IDR0_ATS (1 << 10)
#define IDR0_HYP (1 << 9)
+#define IDR0_HTTU GENMASK(7, 6)
+#define IDR0_HTTU_ACCESS 1
+#define IDR0_HTTU_ACCESS_DIRTY 2
#define IDR0_COHACC (1 << 4)
#define IDR0_TTF GENMASK(3, 2)
#define IDR0_TTF_AARCH64 2
@@ -301,6 +304,9 @@ struct arm_smmu_cd {
#define CTXDESC_CD_0_TCR_IPS GENMASK_ULL(34, 32)
#define CTXDESC_CD_0_TCR_TBI0 (1ULL << 38)
+#define CTXDESC_CD_0_TCR_HA (1UL << 43)
+#define CTXDESC_CD_0_TCR_HD (1UL << 42)
+
#define CTXDESC_CD_0_AA64 (1UL << 41)
#define CTXDESC_CD_0_S (1UL << 44)
#define CTXDESC_CD_0_R (1UL << 45)
@@ -579,17 +585,11 @@ struct arm_smmu_priq {
/* High-level stream table and context descriptor structures */
struct arm_smmu_strtab_l1_desc {
- u8 span;
-
struct arm_smmu_ste *l2ptr;
- dma_addr_t l2ptr_dma;
};
struct arm_smmu_ctx_desc {
u16 asid;
-
- refcount_t refs;
- struct mm_struct *mm;
};
struct arm_smmu_l1_ctx_desc {
@@ -602,11 +602,19 @@ struct arm_smmu_ctx_desc_cfg {
dma_addr_t cdtab_dma;
struct arm_smmu_l1_ctx_desc *l1_desc;
unsigned int num_l1_ents;
+ unsigned int used_ssids;
+ u8 in_ste;
u8 s1fmt;
/* log2 of the maximum number of CDs supported by this table */
u8 s1cdmax;
};
+/* True if the cd table has SSIDS > 0 in use. */
+static inline bool arm_smmu_ssids_in_use(struct arm_smmu_ctx_desc_cfg *cd_table)
+{
+ return cd_table->used_ssids;
+}
+
struct arm_smmu_s2_cfg {
u16 vmid;
};
@@ -648,6 +656,8 @@ struct arm_smmu_device {
#define ARM_SMMU_FEAT_E2H (1 << 18)
#define ARM_SMMU_FEAT_NESTING (1 << 19)
#define ARM_SMMU_FEAT_ATTR_TYPES_OVR (1 << 20)
+#define ARM_SMMU_FEAT_HA (1 << 21)
+#define ARM_SMMU_FEAT_HD (1 << 22)
u32 features;
#define ARM_SMMU_OPT_SKIP_PREFETCH (1 << 0)
@@ -696,16 +706,15 @@ struct arm_smmu_stream {
struct arm_smmu_master {
struct arm_smmu_device *smmu;
struct device *dev;
- struct list_head domain_head;
struct arm_smmu_stream *streams;
/* Locked by the iommu core using the group mutex */
struct arm_smmu_ctx_desc_cfg cd_table;
unsigned int num_streams;
- bool ats_enabled;
+ bool ats_enabled : 1;
+ bool ste_ats_enabled : 1;
bool stall_enabled;
bool sva_enabled;
bool iopf_enabled;
- struct list_head bonds;
unsigned int ssid_bits;
};
@@ -730,10 +739,11 @@ struct arm_smmu_domain {
struct iommu_domain domain;
+ /* List of struct arm_smmu_master_domain */
struct list_head devices;
spinlock_t devices_lock;
- struct list_head mmu_notifiers;
+ struct mmu_notifier mmu_notifier;
};
/* The following are exposed for testing purposes. */
@@ -757,15 +767,23 @@ void arm_smmu_make_abort_ste(struct arm_smmu_ste *target);
void arm_smmu_make_bypass_ste(struct arm_smmu_device *smmu,
struct arm_smmu_ste *target);
void arm_smmu_make_cdtable_ste(struct arm_smmu_ste *target,
- struct arm_smmu_master *master);
+ struct arm_smmu_master *master, bool ats_enabled,
+ unsigned int s1dss);
void arm_smmu_make_s2_domain_ste(struct arm_smmu_ste *target,
struct arm_smmu_master *master,
- struct arm_smmu_domain *smmu_domain);
+ struct arm_smmu_domain *smmu_domain,
+ bool ats_enabled);
void arm_smmu_make_sva_cd(struct arm_smmu_cd *target,
struct arm_smmu_master *master, struct mm_struct *mm,
u16 asid);
#endif
+struct arm_smmu_master_domain {
+ struct list_head devices_elm;
+ struct arm_smmu_master *master;
+ ioasid_t ssid;
+};
+
static inline struct arm_smmu_domain *to_smmu_domain(struct iommu_domain *dom)
{
return container_of(dom, struct arm_smmu_domain, domain);
@@ -774,11 +792,11 @@ static inline struct arm_smmu_domain *to_smmu_domain(struct iommu_domain *dom)
extern struct xarray arm_smmu_asid_xa;
extern struct mutex arm_smmu_asid_lock;
+struct arm_smmu_domain *arm_smmu_domain_alloc(void);
+
void arm_smmu_clear_cd(struct arm_smmu_master *master, ioasid_t ssid);
struct arm_smmu_cd *arm_smmu_get_cd_ptr(struct arm_smmu_master *master,
u32 ssid);
-struct arm_smmu_cd *arm_smmu_alloc_cd_ptr(struct arm_smmu_master *master,
- u32 ssid);
void arm_smmu_make_s1_cd(struct arm_smmu_cd *target,
struct arm_smmu_master *master,
struct arm_smmu_domain *smmu_domain);
@@ -786,12 +804,15 @@ void arm_smmu_write_cd_entry(struct arm_smmu_master *master, int ssid,
struct arm_smmu_cd *cdptr,
const struct arm_smmu_cd *target);
+int arm_smmu_set_pasid(struct arm_smmu_master *master,
+ struct arm_smmu_domain *smmu_domain, ioasid_t pasid,
+ struct arm_smmu_cd *cd);
+
void arm_smmu_tlb_inv_asid(struct arm_smmu_device *smmu, u16 asid);
void arm_smmu_tlb_inv_range_asid(unsigned long iova, size_t size, int asid,
size_t granule, bool leaf,
struct arm_smmu_domain *smmu_domain);
-bool arm_smmu_free_asid(struct arm_smmu_ctx_desc *cd);
-int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain, int ssid,
+int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain,
unsigned long iova, size_t size);
#ifdef CONFIG_ARM_SMMU_V3_SVA
@@ -802,9 +823,8 @@ int arm_smmu_master_enable_sva(struct arm_smmu_master *master);
int arm_smmu_master_disable_sva(struct arm_smmu_master *master);
bool arm_smmu_master_iopf_supported(struct arm_smmu_master *master);
void arm_smmu_sva_notifier_synchronize(void);
-struct iommu_domain *arm_smmu_sva_domain_alloc(void);
-void arm_smmu_sva_remove_dev_pasid(struct iommu_domain *domain,
- struct device *dev, ioasid_t id);
+struct iommu_domain *arm_smmu_sva_domain_alloc(struct device *dev,
+ struct mm_struct *mm);
#else /* CONFIG_ARM_SMMU_V3_SVA */
static inline bool arm_smmu_sva_supported(struct arm_smmu_device *smmu)
{
@@ -838,10 +858,7 @@ static inline bool arm_smmu_master_iopf_supported(struct arm_smmu_master *master
static inline void arm_smmu_sva_notifier_synchronize(void) {}
-static inline struct iommu_domain *arm_smmu_sva_domain_alloc(void)
-{
- return NULL;
-}
+#define arm_smmu_sva_domain_alloc NULL
static inline void arm_smmu_sva_remove_dev_pasid(struct iommu_domain *domain,
struct device *dev,
generated by cgit (git 2.34.1) at 2025-05-15 23:40:52 +0000