20 Sep
2012
20 Sep
'12
12:14 a.m.
On Wed Sep 19, 2012 at 17:41:01 +0400, Nikolay Golikov wrote:
Now I have another problem: I map aipstz-1 registers with l4io_request_iomem(base, AISPTZ_SIZE, L4IO_MEM_NONCACHED, &_vbase); (base = 0x53F00000, AISPTZ_SIZE = 0x4000) It return 0.
But when I try to write to mapped registers my program stopping: *((volatile l4_umword_t *)(_vbase + reg)) = val (reg = 0x0, val = 0x77777777)
Could you check whether it page-faults permanently? (Enable page-fault logging in jdb: P*, let it go, then check trace-buffer via shift-T.) Also try using l4_mem_write as it could be that writing from userspace does not work.
This is my io config:
Looks ok.
Adam
--
Adam adam@os.inf.tu-dresden.de
Lackorzynski http://os.inf.tu-dresden.de/~adam/