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Add more PLIC results to the journal

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Rodrigo Arias 2024-09-05 07:41:32 +02:00
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JOURNAL.md
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@ -4035,3 +4035,75 @@ at 0x40a01000.
Clearly something is not working well in the PLIC.
Let's try to dump the pending and priority registers of the PLIC with devmem,
just to check that the plictool is not doing something wrong.
devmem 0x40801000 # Dump pending bits of sources 0-31
devmem 0x40801004 # Dump pending bits of sources 32-63
devmem 0x40a01000 # Dump priority threshold of context 1
devmem 0x40a00000 # Dump priority threshold of context 0
Interesting output:
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=0 prio=1
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=0 prio=1
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=0 prio=1
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=0 prio=1
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
~ # dd if=/dev/ttyS1 bs=1 count=1 of=/dev/null &
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=1 prio=1
ctx=1 thre=0 unmasked
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
src=33 pend=0 prio=0
ctx=1 thre=1 masked
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=1 prio=1
ctx=1 thre=1 masked
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
src=33 pend=0 prio=0
ctx=1 thre=1 masked
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=1 prio=1
ctx=1 thre=1 masked
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
src=33 pend=0 prio=0
ctx=1 thre=1 masked
~ # plictool -c2
plictool v0.0.3 addr=0x40800000 nsrc=1024 nctx=2
src=1 pend=1 prio=1
ctx=1 thre=1 masked
src=2 pend=0 prio=1
src=3 pend=0 prio=1
src=4 pend=1 prio=1
src=33 pend=0 prio=0
ctx=1 thre=1 masked