<html> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">On 2016年07月26日 15:32, Christian König wrote: </div> <blockquote cite="mid:46261ccd-61dd-0fc5-ba9d-eaafb40da038@vodafone.de" type="cite">Ok, I really wasn't expecting this. How about 100ms? </blockquote> I tried it just now, 100ms isn't enough as well, see the append log. <blockquote cite="mid:46261ccd-61dd-0fc5-ba9d-eaafb40da038@vodafone.de" type="cite"> I just want to avoid that a reset takes more than 1 or 2 seconds even when it didn't worked. With 1 second timeout for each IB test we easily need 10+ seconds when the hardware doesn't response at all. </blockquote> This isn't true, when anyone of them timeout happens, amdgpu_ib_ring_tests will return error. [ 59.286927] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, last signaled seq=30397, last emitted seq=30399 [ 59.287253] [drm] IP block:1 is hang! [ 59.287262] [drm] IP block:5 is hang! [ 59.288375] [drm] Some block need full reset! [ 59.288385] pp_set_clockgating_state was not implemented. [ 59.343335] amdgpu 0000:03:00.0: GPU pci config reset [ 59.422762] amdgpu 0000:03:00.0: GPU reset succeeded, trying to resume [ 59.423971] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000). [ 59.433374] current thermal is out of range [ 59.436736] [drm] ring test on 0 succeeded in 14 usecs [ 59.437341] [drm] ring test on 1 succeeded in 27 usecs [ 59.437388] [drm] ring test on 2 succeeded in 23 usecs [ 59.437399] [drm] ring test on 3 succeeded in 5 usecs [ 59.437405] [drm] ring test on 4 succeeded in 2 usecs [ 59.437412] [drm] ring test on 5 succeeded in 2 usecs [ 59.437420] [drm] ring test on 6 succeeded in 3 usecs [ 59.437429] [drm] ring test on 7 succeeded in 3 usecs [ 59.437435] [drm] ring test on 8 succeeded in 2 usecs [ 59.437493] [drm] ring test on 9 succeeded in 6 usecs [ 59.437501] [drm] ring test on 10 succeeded in 6 usecs [ 59.464320] [drm] ring test on 11 succeeded in 2 usecs [ 59.464322] [drm] UVD initialized successfully. [ 59.564307] [drm] ring test on 12 succeeded in 14 usecs [ 59.564316] [drm] ring test on 13 succeeded in 3 usecs [ 59.564317] [drm] VCE initialized successfully. [ 59.662835] [drm:gfx_v8_0_ring_test_ib [amdgpu]] *ERROR* amdgpu: IB test timed out. [ 59.663030] [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu: failed testing IB on GFX ring (-110). [ 59.663227] amdgpu 0000:03:00.0: ib ring test failed (-110). [ 59.663349] pp_set_clockgating_state was not implemented. [ 59.749358] amdgpu 0000:03:00.0: GPU pci config reset [ 59.830784] amdgpu 0000:03:00.0: GPU reset succeeded, trying to resume [ 59.831982] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000). [ 59.841412] current thermal is out of range [ 59.844763] [drm] ring test on 0 succeeded in 14 usecs [ 59.845341] [drm] ring test on 1 succeeded in 27 usecs [ 59.845385] [drm] ring test on 2 succeeded in 21 usecs [ 59.845397] [drm] ring test on 3 succeeded in 5 usecs [ 59.845406] [drm] ring test on 4 succeeded in 3 usecs [ 59.845412] [drm] ring test on 5 succeeded in 2 usecs [ 59.845421] [drm] ring test on 6 succeeded in 3 usecs [ 59.845429] [drm] ring test on 7 succeeded in 3 usecs [ 59.845435] [drm] ring test on 8 succeeded in 2 usecs [ 59.845493] [drm] ring test on 9 succeeded in 6 usecs [ 59.845500] [drm] ring test on 10 succeeded in 6 usecs [ 59.872362] [drm] ring test on 11 succeeded in 2 usecs [ 59.872363] [drm] UVD initialized successfully. root@zhoucm1-System-Product-Name:~# dmesg -c [ 59.971707] [drm] ring test on 12 succeeded in 14 usecs [ 59.971717] [drm] ring test on 13 succeeded in 3 usecs [ 59.971717] [drm] VCE initialized successfully. [ 60.070820] [drm:gfx_v8_0_ring_test_ib [amdgpu]] *ERROR* amdgpu: IB test timed out. [ 60.071051] [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu: failed testing IB on GFX ring (-110). [ 60.071252] amdgpu 0000:03:00.0: ib ring test failed (-110). [ 60.071375] pp_set_clockgating_state was not implemented. [ 60.151397] amdgpu 0000:03:00.0: GPU pci config reset [ 60.230844] amdgpu 0000:03:00.0: GPU reset succeeded, trying to resume [ 60.232044] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000). [ 60.241412] current thermal is out of range [ 60.244746] [drm] ring test on 0 succeeded in 13 usecs [ 60.245322] [drm] ring test on 1 succeeded in 27 usecs [ 60.245368] [drm] ring test on 2 succeeded in 23 usecs [ 60.245380] [drm] ring test on 3 succeeded in 5 usecs [ 60.245386] [drm] ring test on 4 succeeded in 2 usecs [ 60.245393] [drm] ring test on 5 succeeded in 2 usecs [ 60.245402] [drm] ring test on 6 succeeded in 3 usecs <blockquote cite="mid:46261ccd-61dd-0fc5-ba9d-eaafb40da038@vodafone.de" type="cite"> Regards, Christian. Am 26.07.2016 um 09:28 schrieb zhoucm1: <blockquote type="cite">CQE has found timeout when they cherry-pick your timeout patch. I also found ib_test could be timeout after gpu reset. 1s maybe too long for a simple testing command, but I just think that doesn't matter to judge timeout. Regards, David On 2016年07月26日 15:24, Christian König wrote: <blockquote type="cite">Am 26.07.2016 um 07:57 schrieb Chunming Zhou: <blockquote type="cite">we should give enough time to IB test. Change-Id: I92bfbe9b3aa35083f41baed8663907abfa15c8e6 Signed-off-by: Chunming Zhou <a class="moz-txt-link-rfc2396E" href="mailto:David1.Zhou@amd.com"><David1.Zhou@amd.com></a> </blockquote> Do we really need more than 10ms for an IB test? A whole second sounds awful long when we need to do 10+ tests currently. Christian. <blockquote type="cite">--- drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index 050062e..a31d7ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -33,7 +33,7 @@ #include "amdgpu.h" #include "atom.h" -#define AMDGPU_IB_TEST_TIMEOUT msecs_to_jiffies(10) +#define AMDGPU_IB_TEST_TIMEOUT msecs_to_jiffies(1000) /* * IB </blockquote> </blockquote> </blockquote> </blockquote> </body> </html>