15:09 <bl4ckb0ne> lynxeye: do you know why the mtlb can only point to a 32 bit base address of a stlb? the galcore driver sets both dma mask and coherent mask to 40

15:12 <lynxeye> bl4ckb0ne: the mtlb doesn't support the same trick as the stlb, where the upper 8 bits are squashed in the lower pagetable bits. So there just is no way to point to a 40bit stlb page from the mtlb.

15:13 <lynxeye> At least as far as I know. I have not found any indication in the downstream driver that the mtlb supports this trick.

15:19 <bl4ckb0ne> there's a gcdENABLE_40BIT_VA define, might be that

15:19 <bl4ckb0ne> thanks

15:25 <bl4ckb0ne> im still poking around for that mmu fault/hang, double checking everything and trying to understand the driver

15:26 <bl4ckb0ne> i suspect the mmu fault being from the cmd buffer that's submitted, if I use the user_size instead of the size for the link_dwords i dont get the fault but get more hangs