d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
d3eacc0e47
freebsd-nq/sys/arm
History
Warner Losh d3eacc0e47 Don't allow unmapped I/O. The pmap isn't quite up to the task. Add a 
comment to this effect and switch the default. My old AT91SAM9G20
now boots, fsck's the SD card and runs w/o an issue for the first
time since a 9.1-ish stable build I did a few years ago.

Problems with unmapped I/O:
o un-page-aligned I/O requests to devices fail (notably fsck
  and newfs).
o write-back caching was totally broken. write-through caching
  needed to be enabled.
o Even page-aligned I/O requests sometimes failed for reasons
  not thoroughly investigated.

Suggested by: ian@
MFC after: 2 days
2015-05-16 21:24:32 +00:00
..
allwinner Add the gic to files.arm under "device gic" and use it with the 2015-05-10 09:33:03 +00:00
altera/socfpga Use the new gic option on all configs that need it. 2015-05-10 12:13:27 +00:00
amlogic/aml8726 Disable WPI in case of aml8726-m3. 2015-05-12 08:53:54 +00:00
annapurna/alpine More tr -d '\r' t make config happy and 2015-05-16 20:04:49 +00:00
arm Don't allow unmapped I/O. The pmap isn't quite up to the task. Add a 2015-05-16 21:24:32 +00:00
at91 Include machine/intr.h for arm_post_filter. 2015-04-04 23:00:37 +00:00
broadcom/bcm2835 Fix the SMP initialization on RPi 2 (BCM2836). 2015-05-13 01:48:47 +00:00
cavium/cns11xx Build the cpufunc_asm_* files based on the cpu type, not which config file 2015-03-29 22:43:39 +00:00
conf tr -d '\r' makes config a lot more happy. 2015-05-16 10:27:27 +00:00
freescale Use the new gic option on all configs that need it. 2015-05-10 12:13:27 +00:00
include Add assertions that the addresses passed to tlb maintenance are page-aligned. 2015-05-15 18:10:00 +00:00
lpc Build the cpufunc_asm_* files based on the cpu type, not which config file 2015-03-29 22:43:39 +00:00
mv Include vm/pmap.h for pmap_kextract. 2015-04-04 23:03:11 +00:00
qemu Use the new gic option. While here remove extra whitespace from the ned of 2015-05-10 09:37:54 +00:00
rockchip Use the new gic option on all configs that need it. 2015-05-10 12:13:27 +00:00
samsung Use the new gic option on all configs that need it. 2015-05-10 12:13:27 +00:00
ti Add support for the power button on BeagleBone Black. 2015-05-13 01:10:28 +00:00
versatile Include vm/pmap.h for pmap_kextract. 2015-04-04 23:03:11 +00:00
xilinx Use the new gic option on all configs that need it. 2015-05-10 12:13:27 +00:00
xscale Build the cpufunc_asm_* files based on the cpu type, not which config file 2015-03-29 22:43:39 +00:00