radeon.benchmark=1 enters xmon on PPC

radeon.benchmark=1 enters xmon on PPC

[Gerhard Pircher]

Hi,

The radeon benchmark test fails on my non coherent DMA 745x PPC machine
(see the kernel log excerpt below). The test was performed with a fresh
copy of the airlied/drm-2.6/drm-next branch and the radeon driver was
forced to PCIGART mode. The radeon GTT<->VRAM copy test however works
fine. Let me know, if I should do more testing.

Thanks!

Best regards,

Gerhard

PS: Please put me on CC:


Kernel log:

Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0x00000000
Vector: 400 (Instruction Access) at [ef851c60]
    pc: 00000000
    lr: c0294190: radeon_benchmark_move+0x1a8/0x430
    sp: ef851d10
   msr: 40009032
  current = 0xef848000
    pid   = 1, comm = swapper
enter ? for help
[link register   ] c0294190 radeon_benchmark_move+0x1a8/0x430
[ef851d10] c029415c radeon_benchmark_move+0x174/0x430 (unreliable)
[ef851d70] c029444c radeon_benchmark+0x34/0x60
[ef851d90] c0271a58 radeon_device_init+0x328/0x354
[ef851db0] c0272e68 radeon_driver_load_kms+0x118/0x19c
[ef851de0] c023f8b4 drm_get_dev+0x37c/0x444
[ef851e10] c03ef890 radeon_pci_probe+0x30/0x48
[ef851e20] c01f1754 local_pci_probe+0x38/0x50
[ef851e30] c01f1b40 pci_device_probe+0x78/0xb4
[ef851e60] c02db608 driver_probe_device+0xc8/0x194
[ef851e80] c02db754 __driver_attach+0x80/0xb8
[ef851ea0] c02daae4 bus_for_each_dev+0x6c/0xc0
[ef851ed0] c02db3f4 driver_attach+0x38/0x50
[ef851ee0] c02da218 bus_add_driver+0x128/0x2b4
[ef851f10] c02dbbc0 driver_register+0xe0/0x188
[ef851f40] c01f1e2c __pci_register_driver+0x74/0x100
[ef851f60] c0239c34 drm_init+0x78/0x104
[ef851f80] c057978c radeon_init+0xe8/0x100
[ef851fa0] c0003eb4 do_one_initcall+0x84/0x230
[ef851fd0] c05612a8 kernel_init+0xc0/0x134
[ef851ff0] c0016010 kernel_thread+0x4c/0x68

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