Module Name: src
Committed By: rin
Date: Fri Mar 5 05:35:50 UTC 2021
Modified Files:
src/sys/arch/powerpc/ibm4xx: pic_uic.c
Log Message:
Fix hard freeze in pic_handle_intr() for PPC_IBM403.
Not clearly documented in reference manual, but DCR_EXISR register is
not updated immediately after some bits are cleared by mtdcr, no matter
whether sync (= eieio) and/or isync are issued.
Therefore, we have to manage our own status mask in the interrupt handler.
This is what we did in obsoleted powerpc/ibm4xx/intr.c.
With this change, my Explora 451 works just fine with serial console!
Fix for framebuffer console will be committed soon.
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/sys/arch/powerpc/ibm4xx/pic_uic.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
