From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gna.ch (darkcity.gna.ch [195.226.6.51]) by ozlabs.org (Postfix) with ESMTP id 88D51B6F16 for ; Tue, 12 Apr 2011 01:33:12 +1000 (EST) Subject: Re: Revert 737a3bb9416ce2a7c7a4170852473a4fcc9c67e8 ? From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Gabriel Paubert In-Reply-To: <20110411133128.GA24344@iram.es> References: <20110404235259.GA30132@iram.es> <20110406084101.GB13963@pengutronix.de> <20110406204327.GA11148@iram.es> <1302185075.24704.143.camel@thor.local> <20110411133128.GA24344@iram.es> Content-Type: text/plain; charset="UTF-8" Date: Mon, 11 Apr 2011 17:32:43 +0200 Message-ID: <1302535963.24704.268.camel@thor.local> Mime-Version: 1.0 Cc: Greg KH , linuxppc-dev@lists.ozlabs.org, dri-devel@lists.freedesktop.org, LKML , Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= , Dave Airlie List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , [ Adding the dri-devel list ] On Mon, 2011-04-11 at 15:31 +0200, Gabriel Paubert wrote:=20 > On Thu, Apr 07, 2011 at 04:04:35PM +0200, Michel D=C3=A4nzer wrote: > > On Mit, 2011-04-06 at 22:43 +0200, Gabriel Paubert wrote:=20 > > >=20 > > > The probem is that, at least on one of my machines, the new driver > > > does not work: the system hangs (apparently solid, but it's before > > > networking starts up and I've not yet hooked up a serial console),= =20 > > > after the "radeon: ib pool ready" message. > >=20 > > Does radeon.agpmode=3D-1 radeon.no_wb=3D1 help? > >=20 > > You might be able to get more information via netconsole if you prevent > > the radeon module from loading automatically (or load it with > > radeon.modeset=3D0 first) and then load it e.g. via ssh with modeset=3D= 1. >=20 > Loading the module with modeset=3D1 results in insmod blocked in > kernel state (not consuming CPU cycles either). The last kernel=20 > message is always the same (ib pool ready). This seems to be=20 > independent of agpmode and no_wb. The kernel messages when > loading the driver are: >=20 > kernel: [drm] radeon kernel modesetting enabled. > kernel: checking generic (c0000000 140000) vs hw (c0000000 10000000) > kernel: fb: conflicting fb hw usage radeondrmfb vs OFfb vga,Displa - remo= ving generic driver > kernel: [drm] initializing kernel modesetting (RV530 0x1002:0x71C7). > kernel: radeon 0000:f1:00.0: Using 64-bit DMA iommu bypass > kernel: [drm] register mmio base: 0xE8000000 > kernel: [drm] register mmio size: 65536 > kernel: radeon 0000:f1:00.0: Invalid ROM contents > kernel: ATOM BIOS: X1650PRO > kernel: [drm] Generation 2 PCI interface, using max accessible memory > kernel: radeon 0000:f1:00.0: VRAM: 512M 0x0000000000000000 - 0x000000001F= FFFFFF (512M used) > kernel: radeon 0000:f1:00.0: GTT: 512M 0x0000000020000000 - 0x000000003FF= FFFFF > kernel: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). > kernel: [drm] Driver supports precise vblank timestamp query. > kernel: irq: irq 9 on host /mpic mapped to virtual irq 24 > kernel: u3msi: allocated virq 0x18 (hw 0x9) addr 0xf8004090 > kernel: radeon 0000:f1:00.0: radeon: using MSI. Have you ruled out any MSI related problems? I think the IRQ not working could explain the symptoms... > kernel: [drm] radeon: irq initialized. > kernel: [drm] Detected VRAM RAM=3D512M, BAR=3D256M > kernel: [drm] RAM width 128bits DDR > kernel: [TTM] Zone kernel: Available graphics memory: 1002914 kiB. > kernel: [TTM] Initializing pool allocator. > kernel: [drm] radeon: 512M of VRAM memory ready > kernel: [drm] radeon: 512M of GTT memory ready. > kernel: [drm] GART: num cpu pages 131072, num gpu pages 131072 > kernel: [drm] radeon: 1 quad pipes, 2 z pipes initialized. > kernel: [drm] PCIE GART of 512M enabled (table at 0x00040000). > kernel: radeon 0000:f1:00.0: WB enabled Make sure this line changes to 'WB disabled' with no_wb=3D1. There's a writeback endianness bug with modeset=3D1, see http://lists.freedesktop.org/archives/dri-devel/2011-April/009960.html . > kernel: [drm] Loading R500 Microcode > kernel: [drm] radeon: ring at 0x0000000020001000 > kernel: [drm] ring test succeeded in 6 usecs > kernel: [drm] radeon: ib pool ready. > For now, with modeset=3D0, agpmode=3D-1 and no_wb=3D1, the driver > seems to work. The agpmode and no_wb options only have an effect with modeset=3D1, and you don't seem to be using AGP anyway. :) --=20 Earthling Michel D=C3=A4nzer | http://www.vmware.c= om Libre software enthusiast | Debian, X and DRI developer