aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/include/linux/dmar.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/dmar.h')
-rw-r--r--include/linux/dmar.h153
1 files changed, 84 insertions, 69 deletions
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 65565820328a..692b2b445761 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -18,11 +18,7 @@
struct acpi_dmar_header;
-#ifdef CONFIG_X86
-# define DMAR_UNITS_SUPPORTED MAX_IO_APICS
-#else
-# define DMAR_UNITS_SUPPORTED 64
-#endif
+#define DMAR_UNITS_SUPPORTED 1024
/* DMAR Flags */
#define DMAR_INTR_REMAP 0x1
@@ -43,6 +39,7 @@ struct dmar_drhd_unit {
struct list_head list; /* list of drhd units */
struct acpi_dmar_header *hdr; /* ACPI header */
u64 reg_base_addr; /* register base address*/
+ unsigned long reg_size; /* size of register set */
struct dmar_dev_scope *devices;/* target device array */
int devices_cnt; /* target device count */
u16 segment; /* PCI domain */
@@ -109,8 +106,6 @@ static inline bool dmar_rcu_check(void)
extern int dmar_table_init(void);
extern int dmar_dev_scope_init(void);
extern void dmar_register_bus_notifier(void);
-extern int dmar_parse_dev_scope(void *start, void *end, int *cnt,
- struct dmar_dev_scope **devices, u16 segment);
extern void *dmar_alloc_dev_scope(void *start, void *end, int *cnt);
extern void dmar_free_dev_scope(struct dmar_dev_scope **devices, int *cnt);
extern int dmar_insert_dev_scope(struct dmar_pci_notify_info *info,
@@ -121,8 +116,8 @@ extern int dmar_remove_dev_scope(struct dmar_pci_notify_info *info,
u16 segment, struct dmar_dev_scope *devices,
int count);
/* Intel IOMMU detection */
-extern int detect_intel_iommu(void);
-extern int enable_drhd_fault_handling(void);
+void detect_intel_iommu(void);
+extern int enable_drhd_fault_handling(unsigned int cpu);
extern int dmar_device_add(acpi_handle handle);
extern int dmar_device_remove(acpi_handle handle);
@@ -131,6 +126,14 @@ static inline int dmar_res_noop(struct acpi_dmar_header *hdr, void *arg)
return 0;
}
+#ifdef CONFIG_DMAR_DEBUG
+void dmar_fault_dump_ptes(struct intel_iommu *iommu, u16 source_id,
+ unsigned long long addr, u32 pasid);
+#else
+static inline void dmar_fault_dump_ptes(struct intel_iommu *iommu, u16 source_id,
+ unsigned long long addr, u32 pasid) {}
+#endif
+
#ifdef CONFIG_INTEL_IOMMU
extern int iommu_detected, no_iommu;
extern int intel_iommu_init(void);
@@ -138,6 +141,7 @@ extern void intel_iommu_shutdown(void);
extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header, void *arg);
extern int dmar_parse_one_atsr(struct acpi_dmar_header *header, void *arg);
extern int dmar_check_one_atsr(struct acpi_dmar_header *hdr, void *arg);
+extern int dmar_parse_one_satc(struct acpi_dmar_header *hdr, void *arg);
extern int dmar_release_one_atsr(struct acpi_dmar_header *hdr, void *arg);
extern int dmar_iommu_hotplug(struct dmar_drhd_unit *dmaru, bool insert);
extern int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info);
@@ -149,6 +153,7 @@ static inline void intel_iommu_shutdown(void) { }
#define dmar_parse_one_atsr dmar_res_noop
#define dmar_check_one_atsr dmar_res_noop
#define dmar_release_one_atsr dmar_res_noop
+#define dmar_parse_one_satc dmar_res_noop
static inline int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info)
{
@@ -187,71 +192,82 @@ static inline bool dmar_platform_optin(void)
return false;
}
+static inline void detect_intel_iommu(void)
+{
+}
+
#endif /* CONFIG_DMAR_TABLE */
struct irte {
union {
- /* Shared between remapped and posted mode*/
- struct {
- __u64 present : 1, /* 0 */
- fpd : 1, /* 1 */
- __res0 : 6, /* 2 - 6 */
- avail : 4, /* 8 - 11 */
- __res1 : 3, /* 12 - 14 */
- pst : 1, /* 15 */
- vector : 8, /* 16 - 23 */
- __res2 : 40; /* 24 - 63 */
- };
-
- /* Remapped mode */
- struct {
- __u64 r_present : 1, /* 0 */
- r_fpd : 1, /* 1 */
- dst_mode : 1, /* 2 */
- redir_hint : 1, /* 3 */
- trigger_mode : 1, /* 4 */
- dlvry_mode : 3, /* 5 - 7 */
- r_avail : 4, /* 8 - 11 */
- r_res0 : 4, /* 12 - 15 */
- r_vector : 8, /* 16 - 23 */
- r_res1 : 8, /* 24 - 31 */
- dest_id : 32; /* 32 - 63 */
- };
-
- /* Posted mode */
- struct {
- __u64 p_present : 1, /* 0 */
- p_fpd : 1, /* 1 */
- p_res0 : 6, /* 2 - 7 */
- p_avail : 4, /* 8 - 11 */
- p_res1 : 2, /* 12 - 13 */
- p_urgent : 1, /* 14 */
- p_pst : 1, /* 15 */
- p_vector : 8, /* 16 - 23 */
- p_res2 : 14, /* 24 - 37 */
- pda_l : 26; /* 38 - 63 */
- };
- __u64 low;
- };
-
- union {
- /* Shared between remapped and posted mode*/
- struct {
- __u64 sid : 16, /* 64 - 79 */
- sq : 2, /* 80 - 81 */
- svt : 2, /* 82 - 83 */
- __res3 : 44; /* 84 - 127 */
- };
-
- /* Posted mode*/
struct {
- __u64 p_sid : 16, /* 64 - 79 */
- p_sq : 2, /* 80 - 81 */
- p_svt : 2, /* 82 - 83 */
- p_res3 : 12, /* 84 - 95 */
- pda_h : 32; /* 96 - 127 */
+ union {
+ /* Shared between remapped and posted mode*/
+ struct {
+ __u64 present : 1, /* 0 */
+ fpd : 1, /* 1 */
+ __res0 : 6, /* 2 - 6 */
+ avail : 4, /* 8 - 11 */
+ __res1 : 3, /* 12 - 14 */
+ pst : 1, /* 15 */
+ vector : 8, /* 16 - 23 */
+ __res2 : 40; /* 24 - 63 */
+ };
+
+ /* Remapped mode */
+ struct {
+ __u64 r_present : 1, /* 0 */
+ r_fpd : 1, /* 1 */
+ dst_mode : 1, /* 2 */
+ redir_hint : 1, /* 3 */
+ trigger_mode : 1, /* 4 */
+ dlvry_mode : 3, /* 5 - 7 */
+ r_avail : 4, /* 8 - 11 */
+ r_res0 : 4, /* 12 - 15 */
+ r_vector : 8, /* 16 - 23 */
+ r_res1 : 8, /* 24 - 31 */
+ dest_id : 32; /* 32 - 63 */
+ };
+
+ /* Posted mode */
+ struct {
+ __u64 p_present : 1, /* 0 */
+ p_fpd : 1, /* 1 */
+ p_res0 : 6, /* 2 - 7 */
+ p_avail : 4, /* 8 - 11 */
+ p_res1 : 2, /* 12 - 13 */
+ p_urgent : 1, /* 14 */
+ p_pst : 1, /* 15 */
+ p_vector : 8, /* 16 - 23 */
+ p_res2 : 14, /* 24 - 37 */
+ pda_l : 26; /* 38 - 63 */
+ };
+ __u64 low;
+ };
+
+ union {
+ /* Shared between remapped and posted mode*/
+ struct {
+ __u64 sid : 16, /* 64 - 79 */
+ sq : 2, /* 80 - 81 */
+ svt : 2, /* 82 - 83 */
+ __res3 : 44; /* 84 - 127 */
+ };
+
+ /* Posted mode*/
+ struct {
+ __u64 p_sid : 16, /* 64 - 79 */
+ p_sq : 2, /* 80 - 81 */
+ p_svt : 2, /* 82 - 83 */
+ p_res3 : 12, /* 84 - 95 */
+ pda_h : 32; /* 96 - 127 */
+ };
+ __u64 high;
+ };
};
- __u64 high;
+#ifdef CONFIG_IRQ_REMAP
+ __u128 irte;
+#endif
};
};
@@ -276,7 +292,6 @@ static inline void dmar_copy_shared_irte(struct irte *dst, struct irte *src)
struct irq_data;
extern void dmar_msi_unmask(struct irq_data *data);
extern void dmar_msi_mask(struct irq_data *data);
-extern void dmar_msi_read(int irq, struct msi_msg *msg);
extern void dmar_msi_write(int irq, struct msi_msg *msg);
extern int dmar_set_interrupt(struct intel_iommu *iommu);
extern irqreturn_t dmar_fault(int irq, void *dev_id);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.