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13fe24f37d
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3719 When the CPLBs get a miss, we do: - find a victim in the HW table - remove the victim - find the replacement in the software table - put it into the HW table. If we can't find a replacement in the software table, we accidently leave a duplicate in the HW table. This patch ensures that duplicate is marked as not valid. What we should do is find the replacement in the software table, before we find a victim in the HW table - but its too late in the release cycle to do that much restructuring of this code. Rather that duplicate code, connect Hardware Errors (irq5) into trap_c, so user space processes get killed properly. The rest of irq_panic() can be moved into traps.c (later) There is still a small corner case that causes problems when a pheriperal interrupt goes off a single cycle before a user space hardware error. This causes a kernel panic, rather than the user space process being killed. But, this checkin makes things work in 99.9% of the cases, and is a vast improvement from what is there today (which fails 100% of the time). Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> |
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| .. | ||
| asm-offsets.c | ||
| bfin_dma_5xx.c | ||
| bfin_gpio.c | ||
| bfin_ksyms.c | ||
| cacheinit.c | ||
| cplbinit.c | ||
| dma-mapping.c | ||
| dualcore_test.c | ||
| early_printk.c | ||
| entry.S | ||
| fixed_code.S | ||
| flat.c | ||
| gptimers.c | ||
| init_task.c | ||
| irqchip.c | ||
| kgdb.c | ||
| Makefile | ||
| module.c | ||
| process.c | ||
| ptrace.c | ||
| reboot.c | ||
| setup.c | ||
| signal.c | ||
| sys_bfin.c | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||