2 **************************************************
4 * Automatically generated file, do not edit! *
6 **************************************************
8 .. _amdgpu_synid_gfx90a_waitcnt:
13 Counts of outstanding instructions to wait for.
15 The bits of this operand have the following meaning:
17 ========== ========= ================================================ ============
18 High Bits Low Bits Description Value Range
19 ========== ========= ================================================ ============
20 15:14 3:0 VM_CNT: vector memory operations count. 0..63
21 \- 6:4 EXP_CNT: export count. 0..7
22 \- 11:8 LGKM_CNT: LDS, GDS, Constant and Message count. 0..15
23 ========== ========= ================================================ ============
25 This operand may be specified as one of the following:
27 * An :ref:`integer_number<amdgpu_synid_integer_number>` or an :ref:`absolute_expression<amdgpu_synid_absolute_expression>`. The value must be in the range from 0 to 0xFFFF.
28 * A combination of *vmcnt*, *expcnt*, *lgkmcnt* and other values described below.
30 ====================== ======================================================================
32 ====================== ======================================================================
33 vmcnt(<*N*>) A VM_CNT value. *N* must not exceed the largest VM_CNT value.
34 expcnt(<*N*>) An EXP_CNT value. *N* must not exceed the largest EXP_CNT value.
35 lgkmcnt(<*N*>) An LGKM_CNT value. *N* must not exceed the largest LGKM_CNT value.
36 vmcnt_sat(<*N*>) A VM_CNT value computed as min(*N*, the largest VM_CNT value).
37 expcnt_sat(<*N*>) An EXP_CNT value computed as min(*N*, the largest EXP_CNT value).
38 lgkmcnt_sat(<*N*>) An LGKM_CNT value computed as min(*N*, the largest LGKM_CNT value).
39 ====================== ======================================================================
41 These values may be specified in any order. Spaces, ampersands, and commas may be used as optional separators.
42 If some values are omitted, the corresponding fields will default to their maximum value.
45 :ref:`integer number<amdgpu_synid_integer_number>` or an
46 :ref:`absolute expression<amdgpu_synid_absolute_expression>`.
55 cnt = vm_cnt | (exp_cnt << 4) | (lgkm_cnt << 8)
58 s_waitcnt 1 | (2 << 4) | (3 << 8) // the same as above
59 s_waitcnt vmcnt(1) expcnt(2) lgkmcnt(3) // the same as above
60 s_waitcnt vmcnt(vm_cnt) expcnt(exp_cnt) lgkmcnt(lgkm_cnt) // the same as above
63 s_waitcnt expcnt(2) lgkmcnt(3)
64 s_waitcnt vmcnt(1), expcnt(2), lgkmcnt(3)
65 s_waitcnt vmcnt(1) & lgkmcnt_sat(100) & expcnt(2)