In fact, I want to allocate a continous of pages from a given physical address for a shm object in shmem_file_setup, might i should write a customized shmem_file_setup2 for this? 在 2017年07月06日 17:30, Kamil Konieczny wrote: > > On 06.07.2017 11:04, kipade wrote: >> I use arm 32bit cpu, with kernel 3.14 > banana-pi ? nano-pi ? orange-pi ? odroid ? > > Is it memory region for system registers ? > >>> On 06.07.2017 05:08, kipade wrote: >>>> Here I want to allocate a block of shared memory from a given physical >>>> address, such as 0x90000000, 6M. However, alloc_pages can't fit this >>>> point. I had reserved enugh pages via cmem, there also have enough >>>> continous pages for such allocation anywhere else. What should I do? _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
