On Tue, Nov 18, 2014 at 4:34 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: > On Tue, Nov 18, 2014 at 4:21 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: >> On Mon, Nov 17, 2014 at 1:51 AM, Michel Dänzer <michel@xxxxxxxxxxx> wrote: >>> On 15.11.2014 07:21, Andy Lutomirski wrote: >>>> >>>> I have a Caicos card, like this: >>>> >>>> [ 3.077260] [drm] radeon kernel modesetting enabled. >>>> [ 3.077338] checking generic (e0000000 600000) vs hw (e0000000 >>>> 10000000) >>>> [ 3.077339] fb: switching to radeondrmfb from EFI VGA >>>> [ 3.077377] Console: switching to colour dummy device 80x25 >>>> [ 3.078881] [drm] initializing kernel modesetting (CAICOS >>>> 0x1002:0x6779 0x174B:0xE164). >>>> [ 3.078903] [drm] register mmio base: 0xF4A20000 >>>> [ 3.078904] [drm] register mmio size: 131072 >>>> [ 3.078982] ATOM BIOS: C26401 >>>> [ 3.079572] radeon 0000:09:00.0: VRAM: 1024M 0x0000000000000000 - >>>> 0x000000003FFFFFFF (1024M used) >>>> [ 3.079574] radeon 0000:09:00.0: GTT: 1024M 0x0000000040000000 - >>>> 0x000000007FFFFFFF >>>> [ 3.079576] [drm] Detected VRAM RAM=1024M, BAR=256M >>>> [ 3.079577] [drm] RAM width 64bits DDR >>>> [ 3.079755] [TTM] Zone kernel: Available graphics memory: 8186568 kiB >>>> [ 3.079757] [TTM] Zone dma32: Available graphics memory: 2097152 kiB >>>> [ 3.079757] [TTM] Initializing pool allocator >>>> [ 3.079773] [TTM] Initializing DMA pool allocator >>>> [ 3.080011] [drm] radeon: 1024M of VRAM memory ready >>>> [ 3.080012] [drm] radeon: 1024M of GTT memory ready. >>>> [ 3.080049] [drm] Loading CAICOS Microcode >>>> [ 3.080330] [drm] Internal thermal controller without fan control >>>> [ 3.081425] [drm] radeon: power management initialized >>>> [ 3.081551] [drm] GART: num cpu pages 262144, num gpu pages 262144 >>>> [ 3.082589] [drm] enabling PCIE gen 2 link speeds, disable with >>>> radeon.pcie_gen2=0 >>>> [ 3.085030] [drm] PCIE GART of 1024M enabled (table at >>>> 0x0000000000274000). >>>> [ 3.085221] radeon 0000:09:00.0: WB enabled >>>> [ 3.085224] radeon 0000:09:00.0: fence driver on ring 0 use gpu >>>> addr 0x0000000040000c00 and cpu addr 0xffff88043d914c00 >>>> [ 3.085225] radeon 0000:09:00.0: fence driver on ring 3 use gpu >>>> addr 0x0000000040000c0c and cpu addr 0xffff88043d914c0c >>>> [ 3.097438] radeon 0000:09:00.0: fence driver on ring 5 use gpu >>>> addr 0x0000000000072118 and cpu addr 0xffffc900128b2118 >>>> [ 3.097441] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). >>>> [ 3.097442] [drm] Driver supports precise vblank timestamp query. >>>> [ 3.097514] radeon 0000:09:00.0: irq 56 for MSI/MSI-X >>>> [ 3.097544] radeon 0000:09:00.0: radeon: using MSI. >>>> [ 3.097614] [drm] radeon: irq initialized. >>>> >>>> On recent kernels (3.16 through 3.18-rc4, perhaps), doing anything >>>> graphics intensive seems to cause my system to become unusable for >>>> tens of seconds. Pointing Firefox at Google Maps is a big offender -- >>>> it can take several minutes for me to move my mouse far enough to >>>> close the tab and get my computer back. >>>> >>>> On bootup, I get this warning: >>>> [drm:btc_dpm_set_power_state] *ERROR* >>>> rv770_restrict_performance_levels_before_switch failed >>>> >>>> Setting radeon.dpm=0 seems to work around this problem at the cost of >>>> giving my rather slow graphics. >>>> >>>> Are there known issues here? >>> >>> >>> Can you bisect the kernel, or at least isolate which kernel version first >>> introduced the problem? >> >> With whatever userspace I'm running, I'm seeing it 3.13, 3.14, 3.15, >> 3.16, and 3.18-rc4+. I haven't tried other versions. >> >> With radeon.dpm=0, I can still trigger short stalls (around one >> second), but I seem unable to trigger long stalls easily. (I say >> easily because, just as I was typing this email, my system stalled for >> about a minute.) > > I could be wrong here, but I think that radeon.dpm=0, > power_profile=default is okay, but radeon.dpm=0, power_profile=high is > bad. I'm wrong again. power_profile=default is also bad. Grr. --Andy _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
