From: Thomas Petazzoni > Sent: 07 March 2017 15:53 > On PPv2.2, the streaming mappings can be anywhere in the first 40 bits > of the physical address space. However, for the coherent mappings, we > still need them to be in the first 32 bits of the address space, > because all BM pools share a single register to store the high 32 bits > of the BM pool address, which means all BM pools must be allocated in > the same 4GB memory area. Are the coherent mappings just used for ring structures? If it might be reasonable to allocate them as a single entity, thus guaranteeing they all reside in a single 4G region. David -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
