周易NPU的KMD驱动分析

周易NPU的驱动开源地址：

 https://github.com/Arm-China安谋科技（Arm China） has 7 repositories available. Follow their code on GitHub.https://github.com/Arm-China

kmd driver调用流程

启动log

[   43.896512] aipu: loading out-of-tree module taints kernel.

[   43.900884] armchina 64000000.aipu: AIPU KMD probe start...

[   43.900891] armchina 64000000.aipu: KMD version: release 3.1.7

[   43.900985] armchina 64000000.aipu: no interrupts-reg specified

[   43.901469] armchina 64000000.aipu: AIPU is not behind an IOMMU

[   43.901533] armchina 64000000.aipu: AIPU DRAM mem type is [DMA reserved]

[   43.901667] armchina 64000000.aipu: assigned reserved memory node aipu-shmem@0xA0000000

[   44.008249] armchina 64000000.aipu: init DRAM region done: pa [0xa0000000, 0xbfffffff]

[   44.008287] armchina 64000000.aipu: AIPU core #0 detected: zhouyi-v2-0901

[   44.008536] armchina 64000000.aipu: AIPU Initial Status: 0x70000

[   44.008543] armchina 64000000.aipu: ########## AIPU CORE 0: ZHOUYI V2 ##########

[   44.008549] armchina 64000000.aipu: # ISA Version Register: 0x1

[   44.008556] armchina 64000000.aipu: # TPC Feature Register: 0x1

[   44.008562] armchina 64000000.aipu: # SPU Feature Register: 0x0

[   44.008568] armchina 64000000.aipu: # HWA Feature Register: 0x1

[   44.008575] armchina 64000000.aipu: # Revision ID Register: 0x100

[   44.008581] armchina 64000000.aipu: # Memory Hierarchy Feature Register: 0x160

[   44.008588] armchina 64000000.aipu: # Instruction RAM Feature Register:  0x0

[   44.008594] armchina 64000000.aipu: # TEC Local SRAM Feature Register:   0x312

[   44.008601] armchina 64000000.aipu: # Global SRAM Feature Register:      0x114

[   44.008607] armchina 64000000.aipu: # Instruction Cache Feature Register:0x234

[   44.008614] armchina 64000000.aipu: # Data Cache Feature Register:       0xf0030

[   44.008619] armchina 64000000.aipu: ############################################