mmm further tests shown the oops was casual, maybe related to the real problem, I can't say. I'm unable to reproduce it. But the gpu stall is 100% reproducible with dpm enabled. Attached is the log that usually shows up. Other than that, I also observe the lspci "Unknown header type 7f" problem similar to ko bug #73041 https://bugzilla.kernel.org/show_bug.cgi?id=73041 A few notes: - I can confirm that the problem was first introduced by 6c7bccea390853bdec5b76fe31fc50f3b36f75d5. Until e14cd2bbcb98541e199b7223f38d61527dfe45c9 the gpu works. - The "Unknown header type 7f" thing is not new to me. I experienced this problem a year ago, trying the Catalyst driver. I spent some time filing a bug report for amd, which remained unanswered: http://ati.cchtml.com/show_bug.cgi?id=743 Alex, do you have any clue? Maybe your commit changed something into the initialization order which is confusing this gpu? Thanks, Giancarlo In data lunedì, aprile 14, 2014 12:57:55, Giancarlo Formicuccia ha scritto: > Greetings, > > I'm facing a dpm regression in 3.14 on my radeon TURKS (pci id 1002:6840). > Upon loading the radeon module with dpm enabled, the screen goes black and > the computer locks up. > > The problem first appeared at 6c7bccea390853bdec5b76fe31fc50f3b36f75d5 > drm/radeon/pm: move pm handling into the asic specific code > > and is still present in 3.15-rc1. > > Loading the radeon module with dpm disabled works. > > I captured the relevant kernel messages using a netconsole (attached); there > is an oops in radeon_ring_write presumibly during the test of ring #5. > > Thanks, > > Giancarlo
[ 107.950509] [drm] radeon kernel modesetting enabled. [ 107.974044] checking generic (b0000000 300000) vs hw (b0000000 10000000) [ 107.996501] fb: switching to radeondrmfb from VESA VGA [ 108.017616] Console: switching to colour dummy device 80x25 [ 108.018358] [drm] initializing kernel modesetting (TURKS 0x1002:0x6840 0x1179:0xFB81). [ 108.018401] [drm] register mmio base: 0xC0000000 [ 108.018406] [drm] register mmio size: 131072 [ 108.018523] ATOM BIOS: Toshiba/Quanta [ 108.018615] radeon 0000:01:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used) [ 108.018622] radeon 0000:01:00.0: GTT: 1024M 0x0000000080000000 - 0x00000000BFFFFFFF [ 108.018628] [drm] Detected VRAM RAM=2048M, BAR=256M [ 108.018632] [drm] RAM width 128bits DDR [ 108.018774] [TTM] Zone kernel: Available graphics memory: 4075258 kiB [ 108.018780] [TTM] Zone dma32: Available graphics memory: 2097152 kiB [ 108.018785] [TTM] Initializing pool allocator [ 108.018794] [TTM] Initializing DMA pool allocator [ 108.018822] [drm] radeon: 2048M of VRAM memory ready [ 108.018827] [drm] radeon: 1024M of GTT memory ready. [ 108.018848] [drm] Loading TURKS Microcode [ 108.090679] [drm] Internal thermal controller with fan control [ 108.090825] == power state 0 == [ 108.090834] ui class: none [ 108.090841] internal class: boot [ 108.090849] caps: [ 108.090855] uvd vclk: 0 dclk: 0 [ 108.090860] power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 108.090866] power level 1 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 108.090873] power level 2 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 108.090878] status: c r b [ 108.090890] == power state 1 == [ 108.090894] ui class: performance [ 108.090900] internal class: none [ 108.090908] caps: [ 108.090913] uvd vclk: 0 dclk: 0 [ 108.090918] power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 108.090924] power level 1 sclk: 50000 mclk: 90000 vddc: 1000 vddci: 0 [ 108.090929] power level 2 sclk: 60000 mclk: 90000 vddc: 1000 vddci: 0 [ 108.090934] status: [ 108.090940] == power state 2 == [ 108.090944] ui class: none [ 108.090950] internal class: uvd [ 108.090957] caps: video [ 108.090966] uvd vclk: 70000 dclk: 56000 [ 108.090971] power level 0 sclk: 50000 mclk: 90000 vddc: 1000 vddci: 0 [ 108.090977] power level 1 sclk: 50000 mclk: 90000 vddc: 1000 vddci: 0 [ 108.090982] power level 2 sclk: 60000 mclk: 90000 vddc: 1000 vddci: 0 [ 108.090987] status: [ 108.090992] == power state 3 == [ 108.090996] ui class: battery [ 108.091002] internal class: none [ 108.091010] caps: [ 108.091015] uvd vclk: 0 dclk: 0 [ 108.091020] power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 108.091025] power level 1 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 108.091031] power level 2 sclk: 40000 mclk: 40000 vddc: 900 vddci: 0 [ 108.091036] status: [ 108.091041] == power state 4 == [ 108.091045] ui class: battery [ 108.091050] internal class: uvd_hd [ 108.091057] caps: video [ 108.091065] uvd vclk: 40000 dclk: 30000 [ 108.091070] power level 0 sclk: 40000 mclk: 40000 vddc: 900 vddci: 0 [ 108.091076] power level 1 sclk: 40000 mclk: 40000 vddc: 900 vddci: 0 [ 108.091081] power level 2 sclk: 40000 mclk: 40000 vddc: 900 vddci: 0 [ 108.091086] status: [ 108.091091] == power state 5 == [ 108.091095] ui class: none [ 108.091100] internal class: ulv [ 108.091107] caps: [ 108.091113] uvd vclk: 0 dclk: 0 [ 108.091117] power level 0 sclk: 30000 mclk: 15000 vddc: 875 vddci: 0 [ 108.091123] power level 1 sclk: 30000 mclk: 15000 vddc: 875 vddci: 0 [ 108.091129] power level 2 sclk: 30000 mclk: 15000 vddc: 875 vddci: 0 [ 108.091134] status: [ 108.095303] [drm] radeon: dpm initialized [ 108.108181] [drm] GART: num cpu pages 262144, num gpu pages 262144 [ 108.109605] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0 [ 108.142078] [drm] PCIE GART of 1024M enabled (table at 0x0000000000273000). [ 108.142211] radeon 0000:01:00.0: WB enabled [ 108.142220] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0xffff88023f14ac00 [ 108.142229] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr 0xffff88023f14ac0c [ 108.142648] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000072118 and cpu addr 0xffffc90011f32118 [ 108.142657] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 108.142662] [drm] Driver supports precise vblank timestamp query. [ 108.142692] radeon 0000:01:00.0: irq 44 for MSI/MSI-X [ 108.142712] radeon 0000:01:00.0: radeon: using MSI. [ 108.142747] [drm] radeon: irq initialized. [ 108.271894] [drm:r600_ring_test] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xFFFFFFFF) [ 108.271900] radeon 0000:01:00.0: disabling GPU acceleration [ 113.276575] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 113.276583] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing E582 (len 3163, WS 4, PS 4) @ 0xEC4D [ 113.276593] [drm] radeon atom DIG backlight initialized [ 113.276597] [drm] Radeon Display Connectors [ 113.276599] [drm] Connector 0: [ 113.276602] [drm] LVDS-1 [ 113.276605] [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c [ 113.276608] [drm] Encoders: [ 113.276610] [drm] LCD1: INTERNAL_UNIPHY [ 113.276613] [drm] Connector 1: [ 113.276615] [drm] HDMI-A-1 [ 113.276617] [drm] HPD1 [ 113.276620] [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c [ 113.276623] [drm] Encoders: [ 113.276625] [drm] DFP1: INTERNAL_UNIPHY1 [ 113.276628] [drm] Connector 2: [ 113.276630] [drm] VGA-1 [ 113.276633] [drm] DDC: 0x6450 0x6450 0x6454 0x6454 0x6458 0x6458 0x645c 0x645c [ 113.276637] [drm] Encoders: [ 113.276644] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 118.282704] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 118.282713] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing C8D2 (len 1136, WS 0, PS 0) @ 0xC8FC [ 123.302175] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 123.302189] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing D228 (len 62, WS 0, PS 0) @ 0xD244 [ 123.302197] switching from power state: [ 123.302200] ui class: none [ 123.302204] internal class: boot [ 123.302208] caps: [ 123.302211] uvd vclk: 0 dclk: 0 [ 123.302214] power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 123.302218] power level 1 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 123.302221] power level 2 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 123.302223] status: c b [ 123.302228] switching to power state: [ 123.302231] ui class: performance [ 123.302234] internal class: none [ 123.302238] caps: [ 123.302240] uvd vclk: 0 dclk: 0 [ 123.302244] power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 0 [ 123.302251] power level 1 sclk: 50000 mclk: 90000 vddc: 1000 vddci: 0 [ 123.302257] power level 2 sclk: 60000 mclk: 90000 vddc: 1000 vddci: 0 [ 123.302260] status: r [ 123.302282] [drm:btc_dpm_set_power_state] *ERROR* rv770_restrict_performance_levels_before_switch failed [ 128.308303] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 128.308310] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing D228 (len 62, WS 0, PS 0) @ 0xD244 [ 133.314432] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 133.314439] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing D228 (len 62, WS 0, PS 0) @ 0xD244 [ 138.320561] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 138.320568] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing D228 (len 62, WS 0, PS 0) @ 0xD244 [ 143.326690] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 143.326697] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing D228 (len 62, WS 0, PS 0) @ 0xD244
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