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it's related to the display or >>> DDR. >>> If not displayed, do the fluster test cases yield different results at >>> 600MHz and 300MHz? >> >> Didn't you run these tests before sending ? I can try again, but in my >> internal >> notes, I wrote: >> >> > Tested that, and everything becomes unstable >> >> That was before I figure-out the IRQ handler didn't handle exception bits that >> didn't stop the decoder (or dry IRQ, which strangely is common from the G2). > > Ran some fluster tests now. With this patch the results is not consistent > anymore. Then I ran it with weston being started, and in the middle of the test > the display turned black. Matches my past observation. We did reproduce this on > BSP kernel too. When the display goes black, the recent hantro drivers reports: > > [ 827.581586] hantro-vpu 38310000.video-codec: frame decode timed out. > [ 827.720201] hantro-vpu 38310000.video-codec: not all macroblocks were > decoded. > > > I have local patches to reduce the cascade of errors, so it likely survived > longer then last time. I will send these patches soon. The "not all macroblocks > were decoded." is triggered by a bit in the status register that is not > documented in NXP TRM. I found that bit in some VC8000D documentation (the > sucessor of G2). I concluded it was the same meaning after looking at the failed > buffer visually, it is indeed missing couple of macroblocks near th end. Each > time we see this error, the DCSS gives up and turn either black, or sometimes > other color. The second case has been tracked to a DCSS Scaler underrun, the > first we don't know. > > Fluster command ran (two threads, never completes): > > ./fluster.py run -d GStreamer-H.265-V4L2SL-Gst1.0 -ts JCT-VC-HEVC_V1 -j2 -t90 > > Nicolas My test results for fluster differ from yours. On my end, the results for JCT-VC-HEVC_V1 are consistent at both 300MHz and 600MHz. And results remained unchanged after multiple tests. I'm not sure what caused the differences between us. Below are my test results: 600Mhz, 0.9v cat /sys/kernel/debug/regulator/regulator_summary |grep SW1C SW1C 0 1 0 unknown 900mV 0mA 825mV 1100mV cat /sys/kernel/debug/clk/vpu_g2/clk_rate 600000000 ./fluster.py run -ts JCT-VC-HEVC_V1 -d GStreamer-H.265-V4L2SL-Gst1.0 -j2 -t 90 **************************************************************************************************** Running test suite JCT-VC-HEVC_V1 with decoder GStreamer-H.265-V4L2SL-Gst1.0 Using 2 parallel job(s) **************************************************************************************************** Ran 139/147 tests successfully in 505.434 secs Ran 139/147 tests successfully in 505.350 secs Ran 139/147 tests successfully in 507.540 secs 600Mhz, 1.0v cat /sys/kernel/debug/regulator/regulator_summary |grep SW1C SW1C 0 1 0 unknown 1000mV 0mA 825mV 1100mV cat /sys/kernel/debug/clk/vpu_g2/clk_rate 600000000 ./fluster.py run -ts JCT-VC-HEVC_V1 -d GStreamer-H.265-V4L2SL-Gst1.0 -j2 -t 90 Ran 139/147 tests successfully in 506.901 secs 300Mhz, 0.9v cat /sys/kernel/debug/regulator/regulator_summary |grep SW1C SW1C 0 1 0 unknown 900mV 0mA 825mV 1100mV cat /sys/kernel/debug/clk/vpu_g2/clk_rate 300000000 ./fluster.py run -ts JCT-VC-HEVC_V1 -d GStreamer-H.265-V4L2SL-Gst1.0 -j2 -t 90 Ran 139/147 tests successfully in 506.063 secs Downstream v4l2 driver cat /sys/kernel/debug/regulator/regulator_summary |grep SW1C SW1C 0 2 0 unknown 1000mV 0mA 825mV 1100mV cat /sys/kernel/debug/clk/vpu_g2/clk_rate 600000000 ./fluster.py run -ts JCT-VC-HEVC_V1 -d GStreamer-H.265-V4L2-Gst1.0 -j2 -t 90 Ran 136/147 tests successfully in 460.435 secs Regards, Ming