| .. _amdgpu_synid_sendmsg: |
| |
| sendmsg |
| ======= |
| |
| An 8-bit value in simm16[7:0] encodes the message type. |
| |
| This operand may be specified as one of the following: |
| |
| * An :ref:`integer_number<amdgpu_synid_integer_number>` or an :ref:`absolute_expression<amdgpu_synid_absolute_expression>`. The value must be in the range 0..0xFFFF. |
| * A *sendmsg* value described below. |
| |
| |
| ==================================== ==================================================== |
| Sendmsg Value Syntax Description |
| ==================================== ==================================================== |
| sendmsg(<*type*>) A message identified by its *type*. |
| ==================================== ==================================================== |
| |
| *Type* may be specified using message *name* or message *id*. |
| |
| Numeric values may be specified as positive :ref:`integer numbers<amdgpu_synid_integer_number>` |
| or :ref:`absolute expressions<amdgpu_synid_absolute_expression>`. |
| |
| |
| Only the following message types are valid. |
| |
| ====================== =========== |
| Message type simm16[7:0] |
| ====================== =========== |
| Reserved 0 |
| MSG_INTERRUPT 1 |
| MSG_HS_TESSFACTOR 2 |
| MSG_DEALLOC_VGPRS 3 |
| MSG_GS_ALLOC_REQ 9 |
| ====================== =========== |
| |
| Examples: |
| |
| .. parsed-literal:: |
| |
| // numeric message code |
| msg = 0x1 |
| s_sendmsg 0x3 |
| s_sendmsg msg + 2 |
| |
| // sendmsg with strict arguments validation |
| s_sendmsg sendmsg(MSG_INTERRUPT) |
