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Message-ID: <op.uteygpgpgp7xae@127.0.0.1> Date: Mon, 04 May 2009 18:23:03 +0200 FROM: Karsten Mehrhoff <kawime@....de> To: Michel Dänzer <michel@...nzer.net> Cc: "Jerome Glisse" <glisse@...edesktop.org>, "Shaohua Li" <shaohua.li@...el.com>, "Dave Airlie" <airlied@...ux.ie>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Andrew Morton" <akpm@...ux-foundation.org>, "dri-devel@...ts.sourceforge.net" <dri-devel@...ts.sourceforge.net>, "stable@...nel.org" <stable@...nel.org> Subject: Re: PROBLEM: 2.6.29.2 - AGP doesn't work anymore on my nforce2 On Mon, 04 May 2009 17:07:40 +0200, Michel Dänzer wrote: > On Mon, 2009-05-04 at 08:31 +0200, Karsten Mehrhoff wrote: >> On Mon, 04 May 2009 03:41:51 +0200, Shaohua Li wrote: >>> On Fri, May 01, 2009 at 09:22:19PM +0800, kawime@....de wrote: >>>>> On Thu, 2009-04-30 at 17:59 -0700, Andrew Morton wrote: >>>>>> On Thu, 30 Apr 2009 10:51:47 +0200 >>>>>> Karsten Mehrhoff wrote: >>>>>> >>>>>>> [1.] >>>>>>> PROBLEM: No more agp card functionality with the patch 2.6.29.2 of >>>>>> 'a/drivers/char/agp/generic.c' >>>>>>> >>>>>>> [2.] >>>>>>> I compiled the kernel 2.6.29.2 with my .config of 2.6.29.1 and run >>>>>> into problems with the speed of my ATI RADEON 9600 (rv350) >>>>>>> >>>>>> >>>>> >>>>> Is your problem speed issue ? ie just a slowdown ? Or does AGP stop >>>>> working with this patch ? Slowdown is expected from this patch but >>>>> it should hurt too much. >>>>> >>>> >>>> 2.6.29.1 | 2.6.29.2 >>>> -------- | -------- >>>> glxgears ~ 2900 FPS | ~ 75 FPS >>>> glxgears -fullscreen ~ 500 FPS | ~ 11 FPS >>> Does this patch alone give so huge slowdown? From my little knowledge, >>> xserver >>> does agp pages allocation only at startup. >> >> I only reverted this patch in the source file >> (/drivers/char/agp/generic.c) and got back my old speed on 2.6.29.2. > > Is the DRI enabled in both cases? Compare the Xorg.0.log file and the > output of > > dmesg|grep -e agp -e drm > ********************************* 2.6.29.2 (original) ********************************* $ dmesg|grep -e agp -e drm $ dmesg|grep agp [ 0.861997] Linux agpgart interface v0.103 [ 10.893793] agpgart: Detected NVIDIA nForce2 chipset [ 10.939070] agpgart-nvidia 0000:00:00.0: AGP aperture is 64M @ 0xe0000000 $ glxinfo | grep direct direct rendering: Yes $ grep -i dri /var/log/Xorg.0.log X.Org Video Driver: 5.0 X.Org XInput driver : 4.0 (II) LoadModule: "dri" (II) Loading /usr/lib/xorg/modules/extensions//libdri.so (II) Module dri: vendor="X.Org Foundation" (II) Loading extension XFree86-DRI (II) LoadModule: "dri2" (II) Loading /usr/lib/xorg/modules/extensions//libdri2.so (II) Module dri2: vendor="X.Org Foundation" (II) Loading extension DRI2 (II) Scanning /usr/share/xserver-xorg/pci directory for additional PCI ID's supported by the drivers (==) Matched radeon for the autoconfigured driver (==) Assigned the driver to the xf86ConfigLayout (II) Loading /usr/lib/xorg/modules/drivers//radeon_drv.so Module class: X.Org Video Driver ABI class: X.Org Video Driver, version 5.0 (II) RADEON: Driver for ATI Radeon chipsets: ABI class: X.Org Video Driver, version 5.0 ABI class: X.Org Video Driver, version 5.0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 (II) RADEON(0): [dri] Found DRI library version 1.3.0 and kernel module version 1.29.0 ABI class: X.Org Video Driver, version 5.0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 (EE) RADEON(0): [agp] AGP failed to initialize. Disabling the DRI. ABI class: X.Org Video Driver, version 5.0 (II) AIGLX: Screen 0 is not DRI2 capable (II) AIGLX: Screen 0 is not DRI capable (II) AIGLX: Loaded and initialized /usr/lib/dri/swrast_dri.so (II) GLX: Initialized DRISWRAST GL provider for screen 0 Module class: X.Org XInput Driver ABI class: X.Org XInput driver, version 4.0 ********************************** 2.6.29.2 (with the reverted patch) ********************************** $ dmesg|grep -e agp -e drm [ 0.870790] Linux agpgart interface v0.103 [ 0.871479] agpgart: Detected NVIDIA nForce2 chipset [ 0.877279] agpgart-nvidia 0000:00:00.0: AGP aperture is 64M @ 0xe0000000 [ 0.878450] [drm] Initialized drm 1.1.0 20060810 [ 0.881925] [drm] Initialized radeon 1.29.0 20080528 on minor 0 [ 33.336636] agpgart-nvidia 0000:00:00.0: AGP 3.0 bridge [ 33.336658] agpgart-nvidia 0000:00:00.0: putting AGP V3 device into 8x mode [ 33.575910] [drm] Setting GART location based on new memory map [ 33.575922] [drm] Loading R300 Microcode [ 33.575965] [drm] Num pipes: 1 [ 33.575973] [drm] writeback test succeeded in 1 usecs $ glxinfo | grep direct direct rendering: Yes $ grep -i dri /var/log/Xorg.0.log X.Org Video Driver: 5.0 X.Org XInput driver : 4.0 (II) LoadModule: "dri" (II) Loading /usr/lib/xorg/modules/extensions//libdri.so (II) Module dri: vendor="X.Org Foundation" (II) Loading extension XFree86-DRI (II) LoadModule: "dri2" (II) Loading /usr/lib/xorg/modules/extensions//libdri2.so (II) Module dri2: vendor="X.Org Foundation" (II) Loading extension DRI2 (II) Scanning /usr/share/xserver-xorg/pci directory for additional PCI ID's supported by the drivers (==) Matched radeon for the autoconfigured driver (==) Assigned the driver to the xf86ConfigLayout (II) Loading /usr/lib/xorg/modules/drivers//radeon_drv.so Module class: X.Org Video Driver ABI class: X.Org Video Driver, version 5.0 (II) RADEON: Driver for ATI Radeon chipsets: ABI class: X.Org Video Driver, version 5.0 ABI class: X.Org Video Driver, version 5.0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 (II) RADEON(0): [dri] Found DRI library version 1.3.0 and kernel module version 1.29.0 ABI class: X.Org Video Driver, version 5.0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 (II) RADEON(0): [dri] Visual configs initialized (II) RADEON(0): [DRI] installation complete (WW) RADEON(0): DRI init changed memory map, adjusting ... ABI class: X.Org Video Driver, version 5.0 (II) AIGLX: Screen 0 is not DRI2 capable drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: node name is /dev/dri/card0 (II) AIGLX: enabled GLX_texture_from_pixmap with driver support (II) AIGLX: Loaded and initialized /usr/lib/dri/r300_dri.so (II) GLX: Initialized DRI GL provider for screen 0 Module class: X.Org XInput Driver ABI class: X.Org XInput driver, version 4.0 For me it seems that agp failed to initialize because of the patch. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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