Regression 2.6.34->2.6.35-rc4: radeaon KMS an RS690 broken

Torsten Kaiser just.for.lkml at googlemail.com
Wed Jul 14 13:05:48 PDT 2010


On Wed, Jul 14, 2010 at 9:30 PM, Jerome Glisse <glisse at freedesktop.org> wrote:
> On 07/14/2010 02:51 PM, Torsten Kaiser wrote:
>>
>> On Tue, Jul 13, 2010 at 9:10 PM, Alex Deucher<alexdeucher at gmail.com>
>>  wrote:
>>>
>>> On Tue, Jul 13, 2010 at 2:29 PM, Torsten Kaiser
>>> <just.for.lkml at googlemail.com>  wrote:
>>>>
>>>> But the CP is still broken:
>>>
>>> Is this a regression?  If so, can you bisect it?
>>>
>>> Alex
>>
>> I bisected it to this commit:
>>
>> d594e46ace22afa1621254f6f669e65430048153 is the first bad commit
>> commit d594e46ace22afa1621254f6f669e65430048153
>> Author: Jerome Glisse<jglisse at redhat.com>
>> Date:   Wed Feb 17 21:54:29 2010 +0000
>>
>>     drm/radeon/kms: simplify memory controller setup V2
>>
>>     Get rid of _location and use _start/_end also simplify the
>>     computation of vram_start|end&  gtt_start|end. For R1XX-R2XX
>>     we place VRAM at the same address of PCI aperture, those GPU
>>     shouldn't have much memory and seems to behave better when
>>     setup that way. For R3XX and newer we place VRAM at 0. For
>>     R6XX-R7XX AGP we place VRAM before or after AGP aperture this
>>     might limit to limit the VRAM size but it's very unlikely.
>>     For IGP we don't change the VRAM placement.
>>
>>     Tested on (compiz,quake3,suspend/resume):
>>     PCI/PCIE:RV280,R420,RV515,RV570,RV610,RV710
>>     AGP:RV100,RV280,R420,RV350,RV620(RPB*),RV730
>>     IGP:RS480(RPB*),RS690,RS780(RPB*),RS880
>>
>>     RPB: resume previously broken
>>
>>     V2 correct commit message to reflect more accurately the bug
>>     and move VRAM placement to 0 for most of the GPU to avoid
>>     limiting VRAM.
>>
>>     Signed-off-by: Jerome Glisse<jglisse at redhat.com>
>>     Signed-off-by: Dave Airlie<airlied at redhat.com>
>>
>> :040000 040000 05c1e456fcf6565aa8711e4933807956d0055cca
>> 792c6be2bd161a52500c5e8d685ee651cd5af07e M     drivers
>>
>> HTH, Torsten
>>
>>>> [    0.426931] Linux agpgart interface v0.103
>>>> [    0.427092] [drm] Initialized drm 1.1.0 20060810
>>>> [    0.427196] [drm] radeon defaulting to kernel modesetting.
>>>> [    0.427255] [drm] radeon kernel modesetting enabled.
>>>> [    0.427372] radeon 0000:01:05.0: PCI INT A ->  GSI 18 (level, low) ->
>>>>  IRQ 18
>>>> [    0.429659] [drm] initializing kernel modesetting (RS690
>>>> 0x1002:0x791E).
>>>> [    0.429817] [drm] register mmio base: 0xFE9F0000
>>>> [    0.429876] [drm] register mmio size: 65536
>>>> [    0.430457] ATOM BIOS: ATI
>>>> [    0.430532] radeon 0000:01:05.0: VRAM: 32M 0xDE000000 - 0xDFFFFFFF
>>>> (32M used)
>>>> [    0.430592] radeon 0000:01:05.0: GTT: 512M 0xBE000000 - 0xDDFFFFFF
>>>> [    0.430675] [drm] radeon: irq initialized.
>>>> [    0.430737] mtrr: type mismatch for fc000000,2000000 old:
>>>> write-back new: write-comb
>>>> ining
>>>> [    0.430811] [drm] Detected VRAM RAM=32M, BAR=32M
>>>> [    0.430868] [drm] RAM width 128bits DDR
>>>> [    0.431011] [TTM] Zone  kernel: Available graphics memory: 2010234
>>>> kiB.
>>>> [    0.431070] [TTM] Initializing pool allocator.
>>>> [    0.431147] [drm] radeon: 32M of VRAM memory ready
>>>> [    0.431205] [drm] radeon: 512M of GTT memory ready.
>>>> [    0.431266] [drm] GART: num cpu pages 131072, num gpu pages 131072
>>>> [    0.434654] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
>>>> [    0.441719] [drm] Loading RS690/RS740 Microcode
>>>> [    0.441926] [drm] radeon: ring at 0x00000000BE000000
>>>> [    0.577118] [drm:r100_ring_test] *ERROR* radeon: ring test failed
>>>> (sracth(0x15E4)=0x
>>>> CAFEDEAD)
>>>> [    0.577192] [drm:r100_cp_init] *ERROR* radeon: cp isn't working
>>>> (-22).
>>>> [    0.577252] radeon 0000:01:05.0: failled initializing CP (-22).
>>>> [    0.577310] radeon 0000:01:05.0: Disabling GPU acceleration
>>>> [    0.577440] [drm] radeon: cp finalized
>>>> [    0.578078] [drm] Default TV standard: NTSC
>>>> [    0.578314] [drm] Default TV standard: NTSC
>>>> [    0.578590] [drm] Radeon Display Connectors
>>>> [    0.578648] [drm] Connector 0:
>>>> [    0.578706] [drm]   VGA
>>>> [    0.578764] [drm]   DDC: 0x7e50 0x7e40 0x7e54 0x7e44 0x7e58 0x7e48
>>>> 0x7e5c 0x7e4c
>>>> [    0.578837] [drm]   Encoders:
>>>> [    0.578894] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
>>>> [    0.578952] [drm] Connector 1:
>>>> [    0.579010] [drm]   S-video
>>>> [    0.579067] [drm]   Encoders:
>>>> [    0.579124] [drm]     TV1: INTERNAL_KLDSCP_DAC1
>>>> [    0.579182] [drm] Connector 2:
>>>> [    0.579239] [drm]   HDMI-A
>>>> [    0.579297] [drm]   DDC: 0x7e40 0x7e50 0x7e44 0x7e54 0x7e48 0x7e58
>>>> 0x7e4c 0x7e5c
>>>> [    0.579369] [drm]   Encoders:
>>>> [    0.579427] [drm]     DFP3: INTERNAL_LVTM1
>>>> [    0.773375] [drm] fb mappable at 0xFC040000
>>>> [    0.773434] [drm] vram apper at 0xFC000000
>>>> [    0.773491] [drm] size 786432
>>>> [    0.773549] [drm] fb depth is 8
>>>> [    0.773606] [drm]    pitch is 1024
>>>> [    0.773737] fbcon: radeondrmfb (fb0) is primary device
>>>> [    0.793240] Console: switching to colour frame buffer device 128x48
>>>> [    0.794833] fb0: radeondrmfb frame buffer device
>>>> [    0.794852] drm: registered panic notifier
>>>> [    0.794871] Slow work thread pool: Starting up
>>>> [    0.794932] Slow work thread pool: Ready
>>>> [    0.794953] [drm] Initialized radeon 2.5.0 20080528 for
>>>> 0000:01:05.0 on minor 0
>>>>
>>>>
>>>> Torsten
>>>>
>>>
>
> Does the attached patch works ? (try to change the if 0 to if 1 too

The patch doesn't compile, but after changing mc->foo to rdev->mc.foo it built.

Result from the original patch ("if 0"):
[    0.429603] [drm] initializing kernel modesetting (RS690 0x1002:0x791E).
[    0.429751] [drm] register mmio base: 0xFE9F0000
[    0.429809] [drm] register mmio size: 65536
[    0.430385] ATOM BIOS: ATI
[    0.430460] radeon 0000:01:05.0: VRAM: 32M 0xDE000000 - 0xDFFFFFFF (32M used)
[    0.430520] radeon 0000:01:05.0: GTT: 512M 0xB0000000 - 0xCFFFFFFF
[    0.430603] [drm] radeon: irq initialized.
[    0.430666] mtrr: type mismatch for fc000000,2000000 old:
write-back new: write-combining
[    0.430739] [drm] Detected VRAM RAM=32M, BAR=32M
[    0.430797] [drm] RAM width 128bits DDR
[    0.430940] [TTM] Zone  kernel: Available graphics memory: 2010234 kiB.
[    0.430999] [TTM] Initializing pool allocator.
[    0.431075] [drm] radeon: 32M of VRAM memory ready
[    0.431133] [drm] radeon: 512M of GTT memory ready.
[    0.431194] [drm] GART: num cpu pages 131072, num gpu pages 131072
[    0.434577] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
[    0.441645] [drm] Loading RS690/RS740 Microcode
[    0.441853] [drm] radeon: ring at 0x00000000B0000000
[    0.576773] [drm:r100_ring_test] *ERROR* radeon: ring test failed
(sracth(0x15E4)=0xCAFEDEAD)
[    0.576847] [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
[    0.576907] radeon 0000:01:05.0: failled initializing CP (-22).
[    0.576965] radeon 0000:01:05.0: Disabling GPU acceleration

Result from patch after changing it to "if 1":
[    0.400348] [drm] initializing kernel modesetting (RS690 0x1002:0x791E).
[    0.400497] [drm] register mmio base: 0xFE9F0000
[    0.400556] [drm] register mmio size: 65536
[    0.401097] ATOM BIOS: ATI
[    0.401171] radeon 0000:01:05.0: VRAM: 32M 0xDE000000 - 0xDFFFFFFF (32M used)
[    0.401231] radeon 0000:01:05.0: GTT: 512M 0x00000000 - 0x1FFFFFFF
[    0.401314] [drm] radeon: irq initialized.
[    0.401377] mtrr: type mismatch for fc000000,2000000 old:
write-back new: write-combining
[    0.401451] [drm] Detected VRAM RAM=32M, BAR=32M
[    0.401509] [drm] RAM width 128bits DDR
[    0.401597] [TTM] Zone  kernel: Available graphics memory: 2010234 kiB.
[    0.401656] [TTM] Initializing pool allocator.
[    0.401732] [drm] radeon: 32M of VRAM memory ready
[    0.401791] [drm] radeon: 512M of GTT memory ready.
[    0.401852] [drm] GART: num cpu pages 131072, num gpu pages 131072
[    0.405242] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
[    0.412298] [drm] Loading RS690/RS740 Microcode
[    0.412507] [drm] radeon: ring at 0x0000000000000000
[    0.412582] [drm] ring test succeeded in 1 usecs
[    0.412726] [drm] radeon: ib pool ready.
[    0.412792] [drm] ib test succeeded in 0 usecs

Torsten


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