On Thu, 2012-05-24 at 10:18 +0400, Dmitry Eremin-Solenikov wrote: > Hello, colleagues, > > I'm trying to enable an AGP slot (again) on my Maple board (dual > PPC970FX board, with CPC925 (U3H) north bridge). > > For now I'm stuck with a problem: I use radeon card, drm-radeon driver > with KMS. > > If I force drm-radeon to think about a card as about PCI card (by > commenting corresponding lines in drm_radeon_kms.c), everything works, I > get framebuffer, working X11, etc. If I enable agpgart-uninorth driver > and RADEON_IS_AGP flag in drm driver, I get an Oops early during the > bootstrap. Relevant part of the log (I can send full dmesg of normal > bootstrap or this oops on request, if that would help). Machine Check probably means that there's a HW configuration issue, possibly something missing in the initialization of the AGP hardware to make it actually work. Cheers, Ben. > [ 2.820647] Linux agpgart interface v0.103 > [ 2.824909] agpgart-uninorth 0000:f0:0b.0: Apple U3H chipset > [ 2.830668] agpgart-uninorth 0000:f0:0b.0: Found device u3, rev 35 > [ 2.843611] agpgart-uninorth 0000:f0:0b.0: configuring for size idx: 64 > [ 2.850638] agpgart-uninorth 0000:f0:0b.0: AGP aperture is 256M @ 0x0 > [ 2.857646] [drm] Initialized drm 1.1.0 20060810 > [ 2.862567] [drm] radeon defaulting to kernel modesetting. > [ 2.868091] [drm] radeon kernel modesetting enabled. > [ 2.873222] radeon 0000:f0:10.0: enabling device (0000 -> 0003) > [ 2.880311] radeon 0000:f0:10.0: enabling bus mastering > [ 2.885591] [drm] initializing kernel modesetting (RV350 > 0x1002:0x4152 0x18BC:0x0416). > [ 2.893629] [drm] register mmio base: 0xD0020000 > [ 2.898260] [drm] register mmio size: 65536 > [ 2.947112] [drm] GPU not posted. posting now... > [ 3.051033] agpgart-uninorth 0000:f0:0b.0: putting AGP V3 device into > 8x mode > [ 3.058197] radeon 0000:f0:10.0: putting AGP V3 device into 8x mode > [ 3.064666] radeon 0000:f0:10.0: GTT: 256M 0x00000000 - 0x0FFFFFFF > [ 3.070864] [drm] Generation 2 PCI interface, using max accessible memory > [ 3.077672] radeon 0000:f0:10.0: VRAM: 128M 0x00000000C0000000 - > 0x00000000C7FFFFFF (128M used) > [ 3.086487] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). > [ 3.093126] [drm] Driver supports precise vblank timestamp query. > [ 3.099291] [drm] radeon: irq initialized. > [ 3.103404] [drm] Detected VRAM RAM=128M, BAR=128M > [ 3.108214] [drm] RAM width 128bits DDR > [ 3.112263] [TTM] Zone kernel: Available graphics memory: 496682 kiB > [ 3.118732] [TTM] Initializing pool allocator > [ 3.123346] [drm] radeon: 128M of VRAM memory ready > [ 3.128256] [drm] radeon: 256M of GTT memory ready. > [ 3.133295] [drm] radeon: ib pool ready. > [ 3.137708] [drm] radeon: 1 quad pipes, 1 Z pipes initialized. > [ 3.144018] radeon 0000:f0:10.0: WB disabled > [ 3.148326] [drm] fence driver on ring 0 use gpu addr 0x00000000 and > cpu addr 0xd000000000066000 > [ 3.157474] [drm] Loading R300 Microcode > [ 3.162480] [drm] radeon: ring at 0x0000000000001000 > [ 3.167569] [drm] ring test succeeded in 0 usecs > cpu 0x0: Vector: 200 (Machine Check) at [c000000000d63aa0] > pc: c0000000000cc07c: .trace_hardirqs_on_caller+0x6c/0x190 > lr: c0000000000152f4: .cpu_idle+0x1a4/0x220 > sp: c000000000d63d20 > msr: 9000000000009032 > current = 0xc000000000c4db30 > paca = 0xc00000000ffff000 softe: 0 irq_happened: 0x01 > pid = 0, comm = swapper/0 > enter ? for help > [c000000000d63db0] c0000000000152f4 .cpu_idle+0x1a4/0x220 > [c000000000d63e50] c000000000008fb8 .rest_init+0xe8/0x110 > [c000000000d63ee0] c000000000ba2998 .start_kernel+0x3e4/0x408 > [c000000000d63f90] c000000000007558 .start_here_common+0x20/0x48 > 0:mon> x > [ 843.783295] Oops: Machine check, sig: 7 [#1] > [ 843.787589] SMP NR_CPUS=4 Maple > [ 843.790768] Modules linked in: > [ 843.793855] NIP: c0000000000cc07c LR: c0000000000152f4 CTR: > c000000000023eac > [ 843.800920] REGS: c000000000d63aa0 TRAP: 0200 Not tainted (3.4.0+) > [ 843.807376] MSR: 9000000000009032 <SF,HV,EE,ME,IR,DR,RI> CR: > 24222222 XER: 00000006 > [ 843.815412] SOFTE: 0 > [ 843.817607] TASK = c000000000c4db30[0] 'swapper/0' THREAD: > c000000000d60000 CPU: 0 > [ 843.825035] GPR00: 0000000000000000 c000000000d63d20 c000000000d63280 > c0000000000152f4 > [ 843.833169] GPR04: 0000000000000000 c000000000099d10 0000000000000001 > 0000000000000002 > [ 843.841302] GPR08: 0100000000000000 c000000000e828e8 0140000000000000 > 0000000000000000 > [ 843.849436] GPR12: 0000000044222282 c00000000ffff000 0000000000000000 > 0000000000000000 > [ 843.857570] GPR16: 0000000000ff8750 0000000000cdc890 00000000010001e0 > 0000000000000000 > [ 843.865702] GPR20: 0000000000000000 0000000000000000 000000001dcd6500 > 0000000000000000 > [ 843.873835] GPR24: 0000000000000000 0000000000ec7b00 9000000000009032 > c000000000d7b178 > [ 843.881979] GPR28: c000000000d7b278 0000000000000008 c000000000c970f8 > c0000000000152f4 > [ 843.890314] NIP [c0000000000cc07c] .trace_hardirqs_on_caller+0x6c/0x190 > [ 843.896942] LR [c0000000000152f4] .cpu_idle+0x1a4/0x220 > [ 843.902181] Call Trace: > [ 843.904640] [c000000000d63d20] [c000000000d63db0] > init_thread_union+0x3db0/0x4000 (unreliable) > [ 843.913317] [c000000000d63db0] [c0000000000152f4] .cpu_idle+0x1a4/0x220 > [ 843.919964] [c000000000d63e50] [c000000000008fb8] .rest_init+0xe8/0x110 > [ 843.926615] [c000000000d63ee0] [c000000000ba2998] > .start_kernel+0x3e4/0x408 > [ 843.933611] [c000000000d63f90] [c000000000007558] > .start_here_common+0x20/0x48 > [ 843.940866] Instruction dump: > [ 843.943868] 40de00a4 e92d01c8 800908e8 2f800000 40de0094 e93e8098 > 80090000 2f800000 > [ 843.951829] 409e0030 880d01f2 2fa00000 40de00b0 <e93e84e8> 88090000 > 2f800000 40de00c8 > > > Looking for any suggestions on this. > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
