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James Hogan 8286ae0330 MIPS: Add CDMM bus support 
Add MIPS Common Device Memory Map (CDMM) support in the form of a bus in
the standard Linux device model. Each device attached via CDMM is
discoverable via an 8-bit type identifier and may contain a number of
blocks of memory mapped registers in the CDMM region. IRQs are expected
to be handled separately.

Due to the per-cpu (per-VPE for MT cores) nature of the CDMM devices,
all the driver callbacks take place from workqueues which are run on the
right CPU for the device in question, so that the driver doesn't need to
be as concerned about which CPU it is running on. Callbacks also exist
for when CPUs are taken offline, so that any per-CPU resources used by
the driver can be disabled so they don't get forcefully migrated. CDMM
devices are created as children of the CPU device they are attached to.

Any existing CDMM configuration by the bootloader will be inherited,
however platforms wishing to enable CDMM should implement the weak
mips_cdmm_phys_base() function (see asm/cdmm.h) so that the bus driver
knows where it should put the CDMM region in the physical address space
if the bootloader hasn't already enabled it.

A mips_cdmm_early_probe() function is also provided to allow early boot
or particularly low level code to set up the CDMM region and probe for a
specific device type, for example early console or KGDB IO drivers for
the EJTAG Fast Debug Channel (FDC) CDMM device.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9599/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-31 12:04:12 +02:00
..
basic kernel: build bin2c based on config option CONFIG_BUILD_BIN2C 2014-08-08 15:57:32 -07:00
coccinelle Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-12-20 13:33:03 -08:00
dtc kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
gdb scripts/gdb: add empty package initialization script 2015-02-28 09:57:51 -08:00
genksyms genksyms: fix typeof() handling 2014-04-03 16:20:52 -07:00
kconfig kconfig: use va_end to match corresponding va_start 2015-01-27 16:52:43 +01:00
ksymoops
mod MIPS: Add CDMM bus support 2015-03-31 12:04:12 +02:00
package builddeb: Try to determine distribution 2015-01-06 20:42:46 +01:00
rt-tester kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
selinux kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
tracing kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
.gitignore bin2c: move bin2c in scripts/basic 2014-08-08 15:57:32 -07:00
analyze_suspend.py PM / tools: analyze_suspend.py: update to v3.0 2014-08-09 02:47:58 +02:00
asn1_compiler.c X.509: silence asn1 compiler debug output 2015-01-23 12:10:39 +00:00
bloat-o-meter bloat-o-meter: Ignore syscall aliases SyS_ and compat_SyS_ 2014-08-23 13:08:48 -07:00
bootgraph.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
checkincludes.pl
checkkconfigsymbols.py checkkconfigsymbols.py: improve detection of defects 2014-11-08 20:50:43 -08:00
checkpatch.pl checkpatch: add of_device_id to structs that should be const 2015-02-13 21:21:40 -08:00
checkstack.pl Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-10-07 21:16:26 -04:00
checksyscalls.sh scripts/checksyscalls.sh: Make renameat optional 2014-05-20 10:59:38 +02:00
checkversion.pl
cleanfile
cleanpatch
coccicheck Coccinelle: Update information about the minimal version required 2013-07-03 22:58:20 +02:00
config kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
conmakehash.c kbuild: trivial - remove trailing spaces 2014-04-30 17:34:32 +02:00
decode_stacktrace.sh decode_stacktrace: make stack dump output useful again 2014-06-10 15:29:43 -07:00
decodecode scripts/decodecode: make faulting insn ptr more robust 2013-04-29 15:54:27 -07:00
depmod.sh depmod: pass -P $CONFIG_SYMBOL_PREFIX 2013-02-22 11:52:31 +01:00
diffconfig vfs,ext2: remove CONFIG_EXT2_FS_XIP and rename CONFIG_FS_XIP to CONFIG_FS_DAX 2015-02-16 17:56:04 -08:00
docproc.c kbuild: trivial - use tabs for code indent where possible 2014-06-10 14:00:53 +02:00
export_report.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
extract-ikconfig
extract-vmlinux scripts: add extract-vmlinux 2011-08-31 16:12:17 +02:00
gcc-goto.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-ld kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-version.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-x86_32-has-stack-protector.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-x86_64-has-stack-protector.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gen_initramfs_list.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
get_maintainer.pl scripts: Teach get_maintainer.pl about the new "R:" tag 2014-07-08 14:47:17 -07:00
gfp-translate chmod +x scripts/gfp-translate 2012-06-27 12:44:29 -07:00
headerdep.pl
headers_check.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
headers_install.sh Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
headers.sh CRIS: Fix headers_install 2014-12-20 00:01:12 +01:00
kallsyms.c aarch64: filter $x from kallsyms 2014-10-02 17:01:51 +01:00
Kbuild.include kbuild: allow cc-ifversion to have the argument for false condition 2015-01-09 17:25:44 +01:00
kernel-doc scripts/kernel-doc: don't eat struct members with __aligned 2014-12-10 17:41:02 -08:00
ld-version.sh Kbuild, lto: add ld-version and ld-ifversion macros 2014-02-13 20:25:00 -08:00
Lindent
link-vmlinux.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
Makefile scripts/gdb: add infrastructure 2015-02-17 14:34:53 -08:00
Makefile.asm-generic kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
Makefile.build ftrace: allow architectures to specify ftrace compile options 2015-01-29 09:19:19 +01:00
Makefile.clean Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2015-02-19 10:07:08 -08:00
Makefile.dtbinst dts, kbuild: Implement support for dtb vendor subdirs 2014-10-21 18:06:59 +02:00
Makefile.extrawarn kbuild, LLVMLinux: Supress warnings unless W=1-3 2014-08-05 15:40:01 +02:00
Makefile.fwinst kbuild: remove obj-n and lib-n handling 2014-10-02 13:55:02 +02:00
Makefile.headersinst kbuild: collect shorthands into scripts/Kbuild.include 2014-11-26 14:36:52 +01:00
Makefile.help
Makefile.host kbuild: handle the dependency of multi-objs hostprogs appropriately 2014-08-19 10:26:20 +02:00
Makefile.kasan kasan: enable instrumentation of global variables 2015-02-13 21:21:42 -08:00
Makefile.lib kasan: add kernel address sanitizer infrastructure 2015-02-13 21:21:40 -08:00
Makefile.modbuiltin
Makefile.modinst kbuild: handle module compression while running 'make modules_install'. 2014-08-27 21:54:12 +09:30
Makefile.modpost modpost: Optionally ignore secondary errors seen if a single module build fails 2013-09-23 15:45:03 +09:30
Makefile.modsign modsign: lookup lines ending in .ko in .mod files 2014-08-27 21:54:11 +09:30
makelst
markup_oops.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
mkcompile_h kbuild: trivial - remove trailing spaces 2014-04-30 17:34:32 +02:00
mkmakefile kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
mksysmap kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
mkuboot.sh
mkversion
module-common.lds kernel: add support for .init_array.* constructors 2015-02-13 21:21:42 -08:00
namespace.pl
objdiff scripts: objdiff: support directories for the augument of record command 2014-06-10 14:59:33 +02:00
patch-kernel kbuild: trivial - remove trailing spaces 2014-04-30 17:34:32 +02:00
pnmtologo.c kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
profile2linkerlist.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
recordmcount.c s390/ftrace,kprobes: allow to patch first instruction 2014-10-27 13:27:27 +01:00
recordmcount.h recordmcount/MIPS: Fix possible incorrect mcount_loc table entries in modules 2014-06-26 10:48:19 +01:00
recordmcount.pl Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2015-02-11 17:42:32 -08:00
setlocalversion Fix detectition of kernel git repository in setlocalversion script [take #2] 2014-01-03 14:48:42 +01:00
show_delta kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
sign-file treewide: fix errors in printk 2014-09-01 11:18:25 +02:00
sortextable.c xtensa: enable sorting extable at build time 2014-04-02 01:35:50 +04:00
sortextable.h scripts/sortextable: suppress warning: `relocs_size' may be used uninitialized 2014-10-14 02:18:23 +02:00
spelling.txt checkpatch: look for common misspellings 2014-10-14 02:18:15 +02:00
tags.sh Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:27:48 +02:00
unifdef.c
ver_linux
xz_wrap.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00