-------- Original-Nachricht -------- > Datum: Fri, 28 Aug 2009 10:04:19 +0200 > Von: "Michel Dänzer" <[email protected]> > An: Gerhard Pircher <[email protected]> > CC: [email protected] > Betreff: Re: Kernel fails to boot with radeondrmfb
> On Thu, 2009-08-27 at 22:08 +0200, Gerhard Pircher wrote: > > > > I gave Radeon kernel mode setting a try on my PPC G4/7455 machine, but > > the Radeon DRM driver fails to initialize and then the kernel prints > > "Badness at kernel/mutex-debug.c:77". I tested it with an almost > > (yesterday) fresh checkout of the linus-2.6 (no log, but same output), > > drm-2.6/drm-fixes and drm-2.6/drm-next git tree. > > > > Please take a look at the kernel config, log and lspci.txt files: > > http://boot.homelinux.org:8080/kernel/drm.config > > http://boot.homelinux.org:8080/kernel/drm-next.log > > http://boot.homelinux.org:8080/kernel/drm-fixes.log > > http://boot.homelinux.org:8080/kernel/lspci.txt > > > > The machine is a bit special (non coherent DMA) and there is no > > AGPGART driver for the northbridge (so the Radeon card should operate > > in PCIGART mode!?). > > My guess would be that radeon_gart_table_ram_alloc() fails. Maybe you > can add some debugging output there and in r100_pci_gart_enable() to > verify that. I tried to add some debugging output with both printk() and DRM_INFO() (see patch at the end), but it never gets printed. Even a BUG() statement at the beginning of r100_pci_gart_enable() is not triggered. I would say the functions are not called, or do I miss something here? Here's an excerpt of the kernel log with some more mutex debugging options enabled: calling drm_core_init+0x0/0x140 @ 1 [drm] Initialized drm 1.1.0 20060810 initcall drm_core_init+0x0/0x140 returned 0 after 3744 usecs calling ttm_init+0x0/0x84 @ 1 initcall ttm_init+0x0/0x84 returned 0 after 503 usecs calling radeon_init+0x0/0xf8 @ 1 [drm] radeon default to kernel modesetting. [drm] radeon kernel modesetting enabled. [drm] radeon: Initializing kernel modesetting. [drm] register mmio base: 0x88000000 [drm] register mmio size: 65536 [drm] GPU reset succeed (RBBM_STATUS=0x00000140) [drm] Clocks initialized ! [drm] Generation 2 PCI interface, using max accessible memory [drm] Detected VRAM RAM=128M, BAR=128M [drm] RAM width 128bits DDR [drm] radeon: VRAM 128M [drm] radeon: VRAM from 0x20000000 to 0x27FFFFFF [drm] radeon: GTT 512M [drm] radeon: GTT from 0x00000000 to 0x1FFFFFFF [drm] radeon: irq initialized. [TTM] Zone kernel: Available graphics memory: 378488 kiB. [TTM] Zone highmem: Available graphics memory: 771704 kiB. [drm] radeon: 128M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. [drm] radeon: cp idle (0x02000603) [drm] Loading R200 Microcode [drm:radeon_gart_bind] *ERROR* trying to bind memory to unitialized GART ! [drm:radeon_ttm_backend_bind] *ERROR* failed to bind 256 pages at 0x00000000 [TTM] Couldn't bind backend. [TTM] Failed moving buffer. Proposed placement 0x00070002 [drm:radeon_object_create] *ERROR* Failed to allocate TTM object (1048576, 0x00070002, 0) [drm:radeon_ring_init] *ERROR* radeon: failed to create ring buffer (-22). ===================================== [ BUG: bad unlock balance detected! ] ------------------------------------- swapper/1 is trying to release lock (&rdev->cp.mutex) at: [<c01fa03c>] radeon_ring_init+0x90/0xe4 but there are no more locks to release! other info that might help us debug this: no locks held by swapper/1. stack backtrace: Call Trace: [ef82bc40] [c0009444] show_stack+0x4c/0x144 (unreliable) [ef82bc80] [c0053b64] print_unlock_inbalance_bug+0xf4/0x10c [ef82bd20] [c0053e6c] lock_release+0xb4/0x1c4 [ef82bd40] [c032e8c0] __mutex_unlock_slowpath+0xbc/0x128 [ef82bd60] [c01fa03c] radeon_ring_init+0x90/0xe4 [ef82bd70] [c01ffddc] r100_cp_init+0x470/0x620 [ef82bd90] [c01e2248] radeon_device_init+0x514/0x614 [ef82bdb0] [c01e2dcc] radeon_driver_load_kms+0xa4/0xf4 [ef82bdd0] [c01b64ec] drm_get_dev+0x254/0x318 [ef82be00] [c0334514] radeon_pci_probe+0x1c/0x2c [ef82be10] [c0179d74] local_pci_probe+0x24/0x34 [ef82be20] [c017a090] pci_device_probe+0x68/0xa0 [ef82be50] [c021d97c] driver_probe_device+0xb8/0x180 [ef82be70] [c021dab4] __driver_attach+0x70/0xa4 [ef82be90] [c021d0fc] bus_for_each_dev+0x5c/0xac [ef82bec0] [c021d7a8] driver_attach+0x24/0x34 [ef82bed0] [c021c92c] bus_add_driver+0xb4/0x230 [ef82bef0] [c021de7c] driver_register+0xd0/0x174 [ef82bf10] [c017a4d0] __pci_register_driver+0x64/0xec [ef82bf30] [c01b2134] drm_init+0x68/0xf0 [ef82bf50] [c049c7a8] radeon_init+0xe4/0xf8 [ef82bf70] [c0003e88] do_one_initcall+0x58/0x1b0 [ef82bfe0] [c04851d4] kernel_init+0xb4/0x124 [ef82bff0] [c0012a98] kernel_thread+0x4c/0x68 [drm] DFP table revision: 3 [drm] Radeon Display Connectors [drm] Connector 0: [drm] VGA [drm] DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60 [drm] Encoders: [drm] CRT1: INTERNAL_DAC1 [drm] Connector 1: [drm] DVI-I [drm] DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64 [drm] Encoders: [drm] CRT2: INTERNAL_DAC2 [drm] DFP1: INTERNAL_TMDS1 i2c-adapter i2c-0: unable to read EDID block. radeon 0000:01:00.0: VGA-1: no EDID data [drm] fb mappable at 0x80040000 [drm] vram apper at 0x80000000 [drm] size 7680000 [drm] fb depth is 24 [drm] pitch is 6400 [drm] TMDS-8: set mode 1600x1200 23 Console: switching to colour frame buffer device 200x75 fb0: radeondrmfb frame buffer device registered panic notifier [drm:radeon_driver_load_kms] *ERROR* Failed to initialize radeon, disabling IOCTL [drm] radeon: finishing device. unregistered panic notifier [drm] radeon: cp finalized [TTM] Zone kernel: Used memory at exit: 0 kiB. [TTM] Zone highmem: Used memory at exit: 0 kiB. [drm] radeon: ttm finalized [drm] radeon: fence finalized radeon: probe of 0000:01:00.0 failed with error -22 initcall radeon_init+0x0/0xf8 returned 0 after 770353 usecs Thanks! Gerhard diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 90ff8e0..22801af 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -63,15 +63,19 @@ int r100_pci_gart_enable(struct radeon_device *rdev) uint32_t tmp; int r; + DRM_INFO("[drm] enter r100_pci_gart_enable()\n"); + /* Initialize common gart structure */ r = radeon_gart_init(rdev); if (r) { + DRM_INFO("[drm] radeon_gart_init() failed\n"); return r; } if (rdev->gart.table.ram.ptr == NULL) { rdev->gart.table_size = rdev->gart.num_gpu_pages * 4; r = radeon_gart_table_ram_alloc(rdev); if (r) { + DRM_INFO("[drm] radeon_gart_table_ram_alloc() failed\n"); return r; } } diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 2977539..6046c59 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -37,9 +37,12 @@ int radeon_gart_table_ram_alloc(struct radeon_device *rdev) { void *ptr; + DRM_INFO("[drm] enter radeon_gart_table_ram_alloc()\n"); + ptr = pci_alloc_consistent(rdev->pdev, rdev->gart.table_size, &rdev->gart.table_addr); if (ptr == NULL) { + DRM_INFO("[drm] pci_alloc_consistent() for gart table failed\n"); return -ENOMEM; } #ifdef CONFIG_X86 -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. 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