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freebsd-dev/sys/powerpc/ofw
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Justin Hibbits fd8cf3be5f powerpc: Blacklist the top 64kB range of the lower 4GB PA space 
The PHB4 host bridge used by the POWER9 uses a 64kB range in 32-bit
space at the address 0xffff0000-0xffffffff.  Reserve this range so that
DMA memory cannot be allocated within this range.  This fixes seemingly
random crashes on a POWER9 system.  Ideally this range will have been
reserved by the firmware, but as of now this is not the case.

Submitted by:	git_bdragon.rtk0.net
Reviewed by:	nwhitehorn
Approved by:	re(kib)
Differential Revision:	https://reviews.freebsd.org/D17183
2018-09-25 02:34:28 +00:00
..
ofw_initrd.c ofw: Load initrd file 2018-07-24 16:52:52 +00:00
ofw_machdep.c powerpc: Blacklist the top 64kB range of the lower 4GB PA space 2018-09-25 02:34:28 +00:00
ofw_pcib_pci.c sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
ofw_pcibus.c sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
ofw_pcibus.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
ofw_real.c powerpc/ofw: Fix malloc inside lock 2018-04-08 16:43:56 +00:00
ofw_syscons.c sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
ofw_syscons.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
ofwcall32.S Make 32-bit PowerPC kernels, like 64-bit PowerPC kernels, position-independent 2015-03-07 20:14:46 +00:00
ofwcall64.S Execute PowerPC64/AIM kernel from direct map region when possible. 2018-03-13 15:03:58 +00:00
openpic_ofw.c sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
rtas.c sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00