Re: [mipsel+rs780e]Occasionally "GPU lockup" after resuming from suspend.

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Hi,

Some status update.
在 2011年9月29日 下午5:17,Chen Jie <chenj@xxxxxxxxxx> 写道:
> Hi,
> Add more information.
> We got occasionally "GPU lockup" after resuming from suspend(on mipsel
> platform with a mips64 compatible CPU and rs780e, the kernel is 3.1.0-rc8
> 64bit).  Related kernel message:
> /* return from STR */
> [  156.152343] radeon 0000:01:05.0: WB enabled
> [  156.187500] [drm] ring test succeeded in 0 usecs
> [  156.187500] [drm] ib test succeeded in 0 usecs
> [  156.398437] ata2: SATA link down (SStatus 0 SControl 300)
> [  156.398437] ata3: SATA link down (SStatus 0 SControl 300)
> [  156.398437] ata4: SATA link down (SStatus 0 SControl 300)
> [  156.578125] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [  156.597656] ata1.00: configured for UDMA/133
> [  156.613281] usb 1-5: reset high speed USB device number 4 using ehci_hcd
> [  157.027343] usb 3-2: reset low speed USB device number 2 using ohci_hcd
> [  157.609375] usb 3-3: reset low speed USB device number 3 using ohci_hcd
> [  157.683593] r8169 0000:02:00.0: eth0: link up
> [  165.621093] PM: resume of devices complete after 9679.556 msecs
> [  165.628906] Restarting tasks ... done.
> [  177.085937] radeon 0000:01:05.0: GPU lockup CP stall for more than
> 10019msec
> [  177.089843] ------------[ cut here ]------------
> [  177.097656] WARNING: at drivers/gpu/drm/radeon/radeon_fence.c:267
> radeon_fence_wait+0x25c/0x33c()
> [  177.105468] GPU lockup (waiting for 0x000013C3 last fence id 0x000013AD)
> [  177.113281] Modules linked in: psmouse serio_raw
> [  177.117187] Call Trace:
> [  177.121093] [<ffffffff806f3e7c>] dump_stack+0x8/0x34
> [  177.125000] [<ffffffff8022e4f4>] warn_slowpath_common+0x78/0xa0
> [  177.132812] [<ffffffff8022e5b8>] warn_slowpath_fmt+0x38/0x44
> [  177.136718] [<ffffffff80522ed8>] radeon_fence_wait+0x25c/0x33c
> [  177.144531] [<ffffffff804e9e70>] ttm_bo_wait+0x108/0x220
> [  177.148437] [<ffffffff8053b478>] radeon_gem_wait_idle_ioctl+0x80/0x114
> [  177.156250] [<ffffffff804d2fe8>] drm_ioctl+0x2e4/0x3fc
> [  177.160156] [<ffffffff805a1820>] radeon_kms_compat_ioctl+0x28/0x38
> [  177.167968] [<ffffffff80311a04>] compat_sys_ioctl+0x120/0x35c
> [  177.171875] [<ffffffff80211d18>] handle_sys+0x118/0x138
> [  177.179687] ---[ end trace 92f63d998efe4c6d ]---
> [  177.187500] radeon 0000:01:05.0: GPU softreset
> [  177.191406] radeon 0000:01:05.0:   R_008010_GRBM_STATUS=0xF57C2030
> [  177.195312] radeon 0000:01:05.0:   R_008014_GRBM_STATUS2=0x00111103
> [  177.203125] radeon 0000:01:05.0:   R_000E50_SRBM_STATUS=0x20023040
> [  177.363281] radeon 0000:01:05.0: Wait for MC idle timedout !
> [  177.367187] radeon 0000:01:05.0:   R_008020_GRBM_SOFT_RESET=0x00007FEE
> [  177.390625] radeon 0000:01:05.0: R_008020_GRBM_SOFT_RESET=0x00000001
> [  177.414062] radeon 0000:01:05.0:   R_008010_GRBM_STATUS=0xA0003030
> [  177.417968] radeon 0000:01:05.0:   R_008014_GRBM_STATUS2=0x00000003
> [  177.425781] radeon 0000:01:05.0:   R_000E50_SRBM_STATUS=0x2002B040
> [  177.433593] radeon 0000:01:05.0: GPU reset succeed
> [  177.605468] radeon 0000:01:05.0: Wait for MC idle timedout !
> [  177.761718] radeon 0000:01:05.0: Wait for MC idle timedout !
> [  177.804687] radeon 0000:01:05.0: WB enabled
> [  178.000000] [drm:r600_ring_test] *ERROR* radeon: ring test failed
> (scratch(0x8504)=0xCAFEDEAD)
After pinned ring in VRAM, it warned an ib test failure. It seems
something wrong with accessing through GTT.

We dump gart table just after stopped cp, and compare gart table with
the dumped one just after r600_pcie_gart_enable, and don't find any
difference.

Any idea?

> [  178.007812] [drm:r600_resume] *ERROR* r600 startup failed on resume
> [  178.988281] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule
> IB(5).
> [  178.996093] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB !
> [  179.003906] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule
> IB(6).
> ...



Regards,
-- Chen Jie
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