diff options
Diffstat (limited to 'include/linux/arm_ffa.h')
| -rw-r--r-- | include/linux/arm_ffa.h | 59 |
1 files changed, 52 insertions, 7 deletions
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h index 3d0fde57ba90..74169dd0f659 100644 --- a/include/linux/arm_ffa.h +++ b/include/linux/arm_ffa.h @@ -73,6 +73,11 @@ #define FFA_FN64_MEM_PERM_GET FFA_SMC_64(0x88) #define FFA_MEM_PERM_SET FFA_SMC_32(0x89) #define FFA_FN64_MEM_PERM_SET FFA_SMC_64(0x89) +#define FFA_CONSOLE_LOG FFA_SMC_32(0x8A) +#define FFA_PARTITION_INFO_GET_REGS FFA_SMC_64(0x8B) +#define FFA_EL3_INTR_HANDLE FFA_SMC_32(0x8C) +#define FFA_MSG_SEND_DIRECT_REQ2 FFA_SMC_64(0x8D) +#define FFA_MSG_SEND_DIRECT_RESP2 FFA_SMC_64(0x8E) /* * For some calls it is necessary to use SMC64 to pass or return 64-bit values. @@ -126,6 +131,7 @@ /* FFA Bus/Device/Driver related */ struct ffa_device { u32 id; + u32 properties; int vm_id; bool mode_32bit; uuid_t uuid; @@ -148,7 +154,7 @@ struct ffa_driver { struct device_driver driver; }; -#define to_ffa_driver(d) container_of(d, struct ffa_driver, driver) +#define to_ffa_driver(d) container_of_const(d, struct ffa_driver, driver) static inline void ffa_dev_set_drvdata(struct ffa_device *fdev, void *data) { @@ -160,9 +166,12 @@ static inline void *ffa_dev_get_drvdata(struct ffa_device *fdev) return dev_get_drvdata(&fdev->dev); } +struct ffa_partition_info; + #if IS_REACHABLE(CONFIG_ARM_FFA_TRANSPORT) -struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, - const struct ffa_ops *ops); +struct ffa_device * +ffa_device_register(const struct ffa_partition_info *part_info, + const struct ffa_ops *ops); void ffa_device_unregister(struct ffa_device *ffa_dev); int ffa_driver_register(struct ffa_driver *driver, struct module *owner, const char *mod_name); @@ -170,9 +179,9 @@ void ffa_driver_unregister(struct ffa_driver *driver); bool ffa_device_is_valid(struct ffa_device *ffa_dev); #else -static inline -struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, - const struct ffa_ops *ops) +static inline struct ffa_device * +ffa_device_register(const struct ffa_partition_info *part_info, + const struct ffa_ops *ops) { return NULL; } @@ -209,7 +218,10 @@ bool ffa_device_is_valid(struct ffa_device *ffa_dev) { return false; } #define module_ffa_driver(__ffa_driver) \ module_driver(__ffa_driver, ffa_register, ffa_unregister) -extern struct bus_type ffa_bus_type; +extern const struct bus_type ffa_bus_type; + +/* The FF-A 1.0 partition structure lacks the uuid[4] */ +#define FFA_1_0_PARTITON_INFO_SZ (8) /* FFA transport related */ struct ffa_partition_info { @@ -221,12 +233,29 @@ struct ffa_partition_info { #define FFA_PARTITION_DIRECT_SEND BIT(1) /* partition can send and receive indirect messages. */ #define FFA_PARTITION_INDIRECT_MSG BIT(2) +/* partition can receive notifications */ +#define FFA_PARTITION_NOTIFICATION_RECV BIT(3) /* partition runs in the AArch64 execution state. */ #define FFA_PARTITION_AARCH64_EXEC BIT(8) u32 properties; u32 uuid[4]; }; +static inline +bool ffa_partition_check_property(struct ffa_device *dev, u32 property) +{ + return dev->properties & property; +} + +#define ffa_partition_supports_notify_recv(dev) \ + ffa_partition_check_property(dev, FFA_PARTITION_NOTIFICATION_RECV) + +#define ffa_partition_supports_indirect_msg(dev) \ + ffa_partition_check_property(dev, FFA_PARTITION_INDIRECT_MSG) + +#define ffa_partition_supports_direct_recv(dev) \ + ffa_partition_check_property(dev, FFA_PARTITION_DIRECT_RECV) + /* For use with FFA_MSG_SEND_DIRECT_{REQ,RESP} which pass data via registers */ struct ffa_send_direct_data { unsigned long data0; /* w3/x3 */ @@ -236,6 +265,19 @@ struct ffa_send_direct_data { unsigned long data4; /* w7/x7 */ }; +struct ffa_indirect_msg_hdr { + u32 flags; + u32 res0; + u32 offset; + u32 send_recv_id; + u32 size; +}; + +/* For use with FFA_MSG_SEND_DIRECT_{REQ,RESP}2 which pass data via registers */ +struct ffa_send_direct_data2 { + unsigned long data[14]; /* x4-x17 */ +}; + struct ffa_mem_region_addr_range { /* The base IPA of the constituent memory region, aligned to 4 kiB */ u64 address; @@ -396,6 +438,9 @@ struct ffa_msg_ops { void (*mode_32bit_set)(struct ffa_device *dev); int (*sync_send_receive)(struct ffa_device *dev, struct ffa_send_direct_data *data); + int (*indirect_send)(struct ffa_device *dev, void *buf, size_t sz); + int (*sync_send_receive2)(struct ffa_device *dev, const uuid_t *uuid, + struct ffa_send_direct_data2 *data); }; struct ffa_mem_ops { |