<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi<div class=""><br class=""></div><div class="">thanks to the great work of Etnaviv I am able to use the iMX6Q 2D GPU from a bare metal system writing directly command streams.</div><div class=""><br class=""></div><div class="">Now, working on a 3D GPU implementation (GC2000) but I’m getting AX Write error flagged in the AXI_STATUS register and nothing is written to memory.</div><div class=""><br class=""></div><div class="">The situation:</div><div class=""><br class=""></div><div class="">- I can read/write host interface regs via AHB</div><div class="">- I can schedule command streams and see that idle states are clearing up afterwards</div><div class="">- I can see <span style="caret-color: rgb(3, 47, 98); color: rgb(3, 47, 98); font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class="">PROFILE_READ_BYTES8</span> & <span style="caret-color: rgb(3, 47, 98); color: rgb(3, 47, 98); font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; white-space: pre; background-color: rgb(255, 255, 255);" class="">PROFILE_WRITE_BYTES8</span> increasing with reasonable values</div><div class="">- I’m not using the MMU (page tables not set rsp. empty, base addr all zero), all memory is physical</div><div class="">- I’ve set the HW_CSU_CSL28 for GPU3</div><div class=""><br class=""></div><div class="">If somebody has any idea or hint to where further look into, I am more than happy.</div><div class=""><br class=""></div><div class="">Best</div><div class="">Rolf</div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>