[Ocf-linux-users] Using talitos with linux kernel 2.6.33

[sedat a. <sed...@gm...>]

Hi list;
I am new in this list. I have a problem about Freescale Security Engine
Talitos on MPC8572DS olatform.
I am using Linux kernel 2.6.33 patched with ocf-linux -26-20100325.patch

After successfuly building the kernel and the ocf,cryptodev and talitos
modules
I did the below:
modprobe ocf
modprobe cryptodev
modprobe talitos

every step is Ok. Then with cryptotest application
cryptotest -d talitos -a aes

:As a note I am using the talitos driver under  crypto/ocf/talitos instead
of drivers/crypto/talitos

Then I got the following error

Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0x61363334
Oops: Kernel access of bad area, sig: 11 [#70]
MPC8572 DS
Modules linked in: talitos cryptodev(P) ocf(P) [last unloaded: cryptosoft]
NIP: 61363334 LR: f2449994 CTR: 61363335
REGS: ef2c3ab0 TRAP: 0400   Tainted: P      D     (2.6.33.3)
MSR: 00029000 <EE,ME,CE>  CR: 22088428  XER: 20000000
TASK = ef872ee0[7200] 'cryptotest' THREAD: ef2c2000
GPR00: c0c04000 ef2c3b60 ef872ee0 ef14f6c0 c11f8160 00000a10 00000010
00000001
GPR08: 00000000 c0400000 00000000 61363335 20088422 1001da1c 00000005
00000002
GPR16: 00000001 00000000 00000018 ef292b40 f2450000 00000000 00000004
ef27cf80
GPR24: f2450000 efb70954 ef14f6c0 ef14f6c0 00000003 efb70978 ef27cdc0
ef245cd8
NIP [61363334] 0x61363334
LR [f2449994] talitos_process+0x3ec/0xec0 [talitos]
Call Trace:
[ef2c3b60] [f244992c] talitos_process+0x384/0xec0 [talitos] (unreliable)
[ef2c3bc0] [f2396d28] crypto_invoke+0x98/0x214 [ocf]
[ef2c3bf0] [f2397120] crypto_dispatch+0x27c/0x3a4 [ocf]
[ef2c3c30] [f24164ac] cryptodev_op+0x4ac/0x94c [cryptodev]
[ef2c3ca0] [f2417468] cryptodev_ioctl+0x6d8/0x1a84 [cryptodev]
[ef2c3e90] [c00ba6dc] vfs_ioctl+0x88/0x9c
[ef2c3ea0] [c00bae78] do_vfs_ioctl+0xc4/0x760
[ef2c3f10] [c00bb554] sys_ioctl+0x40/0x74
[ef2c3f40] [c00102e8] ret_from_syscall+0x0/0x3c
Instruction dump:
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
---[ end trace d969f1c27b62fd31 ]---
Segmentation fault

I couldnt solve the problem I found that the error occurs at line
dma_map_single() in talitos_process function.
Any help will be appreciated.