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
kernel: build bin2c based on config option CONFIG_BUILD_BIN2C
2014-08-08 15:57:32 -07:00
Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2014-12-20 13:33:03 -08:00
scripts/gdb: add empty package initialization script
2015-02-28 09:57:51 -08:00
kconfig: use va_end to match corresponding va_start
2015-01-27 16:52:43 +01:00
MIPS: Add CDMM bus support
2015-03-31 12:04:12 +02:00
builddeb: Try to determine distribution
2015-01-06 20:42:46 +01:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
bin2c: move bin2c in scripts/basic
2014-08-08 15:57:32 -07:00
PM / tools: analyze_suspend.py: update to v3.0
2014-08-09 02:47:58 +02:00
X.509: silence asn1 compiler debug output
2015-01-23 12:10:39 +00:00
bloat-o-meter: Ignore syscall aliases SyS_ and compat_SyS_
2014-08-23 13:08:48 -07:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
checkkconfigsymbols.py: improve detection of defects
2014-11-08 20:50:43 -08:00
checkpatch: add of_device_id to structs that should be const
2015-02-13 21:21:40 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2014-10-07 21:16:26 -04:00
vfs,ext2: remove CONFIG_EXT2_FS_XIP and rename CONFIG_FS_XIP to CONFIG_FS_DAX
2015-02-16 17:56:04 -08:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
CRIS: Fix headers_install
2014-12-20 00:01:12 +01:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2014-10-14 09:22:26 +02:00
aarch64: filter $x from kallsyms
2014-10-02 17:01:51 +01:00
kbuild: allow cc-ifversion to have the argument for false condition
2015-01-09 17:25:44 +01:00
scripts/kernel-doc: don't eat struct members with __aligned
2014-12-10 17:41:02 -08:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
scripts/gdb: add infrastructure
2015-02-17 14:34:53 -08:00
ftrace: allow architectures to specify ftrace compile options
2015-01-29 09:19:19 +01:00
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2015-02-19 10:07:08 -08:00
dts, kbuild: Implement support for dtb vendor subdirs
2014-10-21 18:06:59 +02:00
kbuild: remove obj-n and lib-n handling
2014-10-02 13:55:02 +02:00
kbuild: collect shorthands into scripts/Kbuild.include
2014-11-26 14:36:52 +01:00
kbuild: handle the dependency of multi-objs hostprogs appropriately
2014-08-19 10:26:20 +02:00
kasan: enable instrumentation of global variables
2015-02-13 21:21:42 -08:00
kasan: add kernel address sanitizer infrastructure
2015-02-13 21:21:40 -08:00
kbuild: handle module compression while running 'make modules_install'.
2014-08-27 21:54:12 +09:30
modsign: lookup lines ending in .ko in .mod files
2014-08-27 21:54:11 +09:30
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
kernel: add support for .init_array.* constructors
2015-02-13 21:21:42 -08:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
s390/ftrace,kprobes: allow to patch first instruction
2014-10-27 13:27:27 +01:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2015-02-11 17:42:32 -08:00
treewide: fix errors in printk
2014-09-01 11:18:25 +02:00
scripts/sortextable: suppress warning: `relocs_size' may be used uninitialized
2014-10-14 02:18:23 +02:00
checkpatch: look for common misspellings
2014-10-14 02:18:15 +02:00
Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2014-10-14 09:27:48 +02:00
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00
8286ae0330