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MIPS: SGI-IP22/28: Use PROM for memory detection
Thomas Bogendoerfer authored 

EARLY_PRINTK uses ArcWrite (via prom_putchar) on IP22/28, which needs
to not mess up PROMs data structures. ARC PROM gives out a list of
memory chunks, which are used and which are free. This fixes the
problem of not working early printk.

By using XKPHYS spaces more than 256MB memory on Indigo2 R4k machines
is working now, too.
Signed-off-by: default avatarThomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
c0de00b2
Name Last commit Last update
Documentation nvmem: core: add nvmem_device_find
LICENSES LICENSES: Rename other to deprecated
arch MIPS: SGI-IP22/28: Use PROM for memory detection
block block: sed-opal: fix sparse warning: convert __be64 data
certs PKCS#7: Refactor verify_pkcs7_signature()
crypto Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
drivers nvmem: core: add nvmem_device_find
fs elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings
include nvmem: core: add nvmem_device_find
init Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
ipc ipc/sem.c: convert to use built-in RCU list checking
kernel Merge tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
mm Merge branch 'hugepage-fallbacks' (hugepatch patches from David Rientjes)
net nfc: fix memory leak in llcp_sock_bind()
samples Merge tag 'rpmsg-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
scripts scripts/setlocalversion: clear local variable to make it work for sh
security integrity: remove pointless subdir-$(CONFIG_...)
sound Merge tag 'sound-fix-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
usr kbuild: update compile-test header list for v5.4-rc2
virt Merge tag 'kvmarm-fixes-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
.clang-format clang-format: Update with the latest for_each macro list
.cocciconfig scripts: add Linux .cocciconfig for coccinelle
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
README
README
Linux kernel
============

There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
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the problems which may result by upgrading your kernel.
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