diff options
Diffstat (limited to 'external/i915_drm.h')
| -rw-r--r-- | external/i915_drm.h | 235 |
1 files changed, 101 insertions, 134 deletions
diff --git a/external/i915_drm.h b/external/i915_drm.h index f5991a8..e301c5f 100644 --- a/external/i915_drm.h +++ b/external/i915_drm.h @@ -359,7 +359,7 @@ typedef struct _drm_i915_sarea { #define DRM_I915_QUERY 0x39 #define DRM_I915_GEM_VM_CREATE 0x3a #define DRM_I915_GEM_VM_DESTROY 0x3b -#define DRM_I915_PXP_OPS 0x3c +#define DRM_I915_GEM_CREATE_EXT 0x3c /* Must be kept compact -- no holes */ #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) @@ -392,7 +392,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_GEM_ENTERVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT) #define DRM_IOCTL_I915_GEM_LEAVEVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT) #define DRM_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create) -#define DRM_IOCTL_I915_GEM_CREATE_EXT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create_ext) +#define DRM_IOCTL_I915_GEM_CREATE_EXT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE_EXT, struct drm_i915_gem_create_ext) #define DRM_IOCTL_I915_GEM_PREAD DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread) #define DRM_IOCTL_I915_GEM_PWRITE DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite) #define DRM_IOCTL_I915_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap) @@ -424,7 +424,6 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_QUERY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_QUERY, struct drm_i915_query) #define DRM_IOCTL_I915_GEM_VM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_VM_CREATE, struct drm_i915_gem_vm_control) #define DRM_IOCTL_I915_GEM_VM_DESTROY DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_VM_DESTROY, struct drm_i915_gem_vm_control) -#define DRM_IOCTL_I915_PXP_OPS DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_PXP_OPS, struct drm_i915_pxp_ops) /* Allow drivers to submit batchbuffers directly to hardware, relying * on the security mechanisms provided by hardware. @@ -725,27 +724,6 @@ struct drm_i915_gem_create { __u32 pad; }; -struct drm_i915_gem_create_ext { - /** - * Requested size for the object. - * - * The (page-aligned) allocated size for the object will be returned. - */ - __u64 size; - /** - * Returned handle for the object. - * - * Object handles are nonzero. - */ - __u32 handle; - __u32 pad; -#define I915_GEM_CREATE_EXT_SETPARAM (1u << 0) -#define I915_GEM_CREATE_EXT_FLAGS_UNKNOWN \ - (-(I915_GEM_CREATE_EXT_SETPARAM << 1)) - __u64 extensions; - -}; - struct drm_i915_gem_pread { /** Handle for the object being read. */ __u32 handle; @@ -1645,51 +1623,28 @@ struct drm_i915_gem_context_param { #define I915_CONTEXT_PARAM_PERSISTENCE 0xb /* - * I915_CONTEXT_PARAM_PROTECTED_CONTENT: + * I915_CONTEXT_PARAM_RINGSIZE: * - * If set to true (1) PAVP content protection is enabled. - * When enabled, the context is marked unrecoverable and may - * become invalid due to PAVP teardown event or other error. - */ -#define I915_CONTEXT_PARAM_PROTECTED_CONTENT 0xd -/* Must be kept compact -- no holes and well documented */ - - __u64 value; -}; - -struct drm_i915_gem_object_param { - /* Object handle (0 for I915_GEM_CREATE_EXT_SETPARAM) */ - __u32 handle; - - /* Data pointer size */ - __u32 size; - -/* - * I915_OBJECT_PARAM: + * Sets the size of the CS ringbuffer to use for logical ring contexts. This + * applies a limit of how many batches can be queued to HW before the caller + * is blocked due to lack of space for more commands. * - * Select object namespace for the param. - */ -#define I915_OBJECT_PARAM (1ull<<32) - -/* - * I915_PARAM_PROTECTED_CONTENT: + * Only reliably possible to be set prior to first use, i.e. during + * construction. At any later point, the current execution must be flushed as + * the ring can only be changed while the context is idle. Note, the ringsize + * can be specified as a constructor property, see + * I915_CONTEXT_CREATE_EXT_SETPARAM, but can also be set later if required. + * + * Only applies to the current set of engine and lost when those engines + * are replaced by a new mapping (see I915_CONTEXT_PARAM_ENGINES). * - * If set to true (1) buffer contents is expected to be protected by - * PAVP encryption and requires decryption for scan out and processing. - * Protected buffers can only be used in PAVP protected contexts. - * A protected buffer may become invalid as a result of PAVP teardown. + * Must be between 4 - 512 KiB, in intervals of page size [4 KiB]. + * Default is 16 KiB. */ -#define I915_PARAM_PROTECTED_CONTENT 0x1 - - __u64 param; - - /* Data value or pointer */ - __u64 data; -}; +#define I915_CONTEXT_PARAM_RINGSIZE 0xc +/* Must be kept compact -- no holes and well documented */ -struct drm_i915_gem_create_ext_setparam { - struct i915_user_extension base; - struct drm_i915_gem_object_param param; + __u64 value; }; /** @@ -1892,76 +1847,6 @@ struct drm_i915_gem_vm_control { __u32 vm_id; }; -/* - * struct pxp_sm_query_pxp_tag - Params to query the PXP tag of specified - * session id and whether the session is alive from PXP state machine. - */ -struct pxp_sm_query_pxp_tag { - __u32 session_is_alive; - __u32 pxp_tag; /* in - Session ID, out pxp tag */ -}; - -/* - * struct pxp_set_session_status_params - Params to reserved, set or destroy - * the session from the PXP state machine. - */ -struct pxp_set_session_status_params { - __u32 pxp_tag; /* in [optional], for Arbitrator session, out pxp tag */ - __u32 session_type; /* in, session type */ - __u32 session_mode; /* in, session mode */ - __u32 req_session_state; /* in, new session state */ -}; - -/* - * struct pxp_tee_io_message_params - Params to send/receive message to/from TEE. - */ -struct pxp_tee_io_message_params { - __u8 *msg_in; /* in - message input */ - __u32 msg_in_size; /* in - message input size */ - __u8 *msg_out; /* in - message output buffer */ - __u32 msg_out_size; /* out- message output size from TEE */ - __u32 msg_out_buf_size; /* in - message output buffer size */ -}; - -/* - * struct pxp_info - Params for PXP operation. - */ -struct pxp_info { - __u32 action; /* in - specified action of this operation */ - __u32 sm_status; /* out - status output for this operation */ - - union { - /* in - action params to query PXP tag */ - struct pxp_sm_query_pxp_tag query_pxp_tag; - /* in - action params to set the PXP session state */ - struct pxp_set_session_status_params set_session_status; - /* in - action params to send TEE commands */ - struct pxp_tee_io_message_params tee_io_message; - - /* in - action params to set user space context */ - __u32 set_user_ctx; - }; -} __attribute__((packed)); - -/* - * DRM_I915_PXP_OPS - - * - * PXP is an i915 componment, that helps user space to establish the hardware - * protected session and manage the status of each alive software session, - * as well as the life cycle of each session. - * - * This ioctl is to allow user space driver to create, set, and destroy each - * session. It also provides the communication chanel to TEE (Trusted - * Execution Environment) for the protected hardware session creation. - */ -struct drm_i915_pxp_ops { - /* in - user space pointer to struct pxp_info */ - struct pxp_info *info_ptr; - - /* in - memory size that info_ptr points to */ - __u32 info_size; -}; - struct drm_i915_reg_read { /* * Register offset. @@ -2086,6 +1971,17 @@ enum drm_i915_perf_property_id { */ DRM_I915_PERF_PROP_HOLD_PREEMPTION, + /** + * Specifying this pins all contexts to the specified SSEU power + * configuration for the duration of the recording. + * + * This parameter's value is a pointer to a struct + * drm_i915_gem_context_param_sseu. + * + * This property is available in perf revision 4. + */ + DRM_I915_PERF_PROP_GLOBAL_SSEU, + DRM_I915_PERF_PROP_MAX /* non-ABI */ }; @@ -2415,6 +2311,77 @@ struct drm_i915_query_perf_config { __u8 data[]; }; +/** + * struct drm_i915_gem_create_ext - Existing gem_create behaviour, with added + * extension support using struct i915_user_extension. + * + * Note that in the future we want to have our buffer flags here, at least for + * the stuff that is immutable. Previously we would have two ioctls, one to + * create the object with gem_create, and another to apply various parameters, + * however this creates some ambiguity for the params which are considered + * immutable. Also in general we're phasing out the various SET/GET ioctls. + */ +struct drm_i915_gem_create_ext { + /** + * @size: Requested size for the object. + * + * The (page-aligned) allocated size for the object will be returned. + * + */ + __u64 size; + /** + * @handle: Returned handle for the object. + * + * Object handles are nonzero. + */ + __u32 handle; + /** @flags: MBZ */ + __u32 flags; + /** + * @extensions: The chain of extensions to apply to this object. + * + * This will be useful in the future when we need to support several + * different extensions, and we need to apply more than one when + * creating the object. See struct i915_user_extension. + * + * If we don't supply any extensions then we get the same old gem_create + * behaviour. + * + * For I915_GEM_CREATE_EXT_PROTECTED_CONTENT usage see + * struct drm_i915_gem_create_ext_protected_content. + */ +#define I915_GEM_CREATE_EXT_PROTECTED_CONTENT 1 + __u64 extensions; +}; + +/** + * struct drm_i915_gem_create_ext_protected_content - The + * I915_OBJECT_PARAM_PROTECTED_CONTENT extension. + * + * If this extension is provided, buffer contents are expected to be protected + * by PXP encryption and require decryption for scan out and processing. This + * is only possible on platforms that have PXP enabled, on all other scenarios + * using this extension will cause the ioctl to fail and return -ENODEV. The + * flags parameter is reserved for future expansion and must currently be set + * to zero. + * + * The buffer contents are considered invalid after a PXP session teardown. + * + * The encryption is guaranteed to be processed correctly only if the object + * is submitted with a context created using the + * I915_CONTEXT_PARAM_PROTECTED_CONTENT flag. This will also enable extra checks + * at submission time on the validity of the objects involved. + */ +struct drm_i915_gem_create_ext_protected_content { + /** @base: Extension link. See struct i915_user_extension. */ + struct i915_user_extension base; + /** @flags: reserved for future usage, currently MBZ */ + __u32 flags; +}; + +/* ID of the protected content session managed by i915 when PXP is active */ +#define I915_PROTECTED_CONTENT_DEFAULT_SESSION 0xf + #if defined(__cplusplus) } #endif |