linux-stable.git/arch/mips/kernel/Makefile, branch v3.15.2

MIPS: Coherent Processing System SMP implementation

2014-03-26T22:00:12+00:00

This patch introduces a new SMP implementation for systems implementing
the MIPS Coherent Processing System architecture. The kernel will make
use of the Coherence Manager, Cluster Power Controller & Global
Interrupt Controller in order to detect, bring up & make use of other
cores in the system. SMTC is not supported, so only a single TC per VPE
in the system is used. That is, this option enables an SMVP style setup
but across multiple cores.

Signed-off-by: Paul Burton 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6362/
Patchwork: https://patchwork.linux-mips.org/patch/6611/
Patchwork: https://patchwork.linux-mips.org/patch/6651/
Patchwork: https://patchwork.linux-mips.org/patch/6652/
Signed-off-by: Ralf Baechle

MIPS: Add CPC probe, access functions

2014-03-06T20:25:23+00:00

This patch introduces code to probe for a MIPS Cluster Power Controller
& accessor functions to allow for easy register access. This support
code will be used by a subsequent patch.

Signed-off-by: Paul Burton 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6361/
Signed-off-by: Ralf Baechle

MIPS: Add generic CM probe & access code

2014-03-06T20:25:22+00:00

The kernel currently only probes for a MIPS Coherence Manager in the
Malta interrupt code in order to detect & enable the GIC. However CM is
not Malta-specific, so this should really be more generic. This patch
introduces some non-Malta-specific code which probes for a CM and
performs some basic initialisation.

A new header, with temporarily duplicated register definitions, is
introduced in order to:

  1) Allow the new definitions to be correct with regards to the
     CM documentation, as many of those in gcmpregs.h aren't.

  2) Allow switching away from the REG() macro used via a few layers of
     nested macros in order to access registers in gcmpregs.h. This
     patch instead introduced accessor functions akin to the
     {read,write}_c0_* functions used for cop0 registers.

  3) Allow users of the CM to be migrated one by one.

  4) Switch from the name 'GCMP' to 'CM' since the Coherence Manager is
     what this code is actually dealing with.

Signed-off-by: Paul Burton 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6360/
Signed-off-by: Ralf Baechle

MIPS: Move GIC IPI functions out of smp-cmp.c

2014-03-06T20:25:22+00:00

The GIC IPI functions aren't necessarily specific to the "CMP
framework" SMP implementation, and will be used elsewhere in a
subsequent commit. This patch adds cleaned up GIC IPI functions to a
separate file which is compiled when a new CONFIG_MIPS_GIC_IPI Kconfig
symbol is selected, and selects that symbol for CONFIG_MIPS_CMP.

Signed-off-by: Paul Burton 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6359/
Signed-off-by: Ralf Baechle

MIPS: APRP: Add RTLX API support for CMP platforms.

2014-01-22T19:19:02+00:00

This patch adds RTLX API support for platforms having a CMP.

Signed-off-by: Deng-Cheng Zhu 
Signed-off-by: Steven J. Hill 
Reviewed-by: Qais Yousef 
Patchwork: http://patchwork.linux-mips.org/patch/6095/
Reviewed-by: John Crispin

MIPS: APRP: Split RTLX support into separate files.

2014-01-22T19:19:02+00:00

Split the RTLX functionality in preparation for adding support for CMP
platforms. Common functions remain in the original file and a new file
contains code specific to platforms that do not have a CMP.

Signed-off-by: Deng-Cheng Zhu 
Signed-off-by: Steven J. Hill 
Reviewed-by: Qais Yousef 
Patchwork: http://patchwork.linux-mips.org/patch/6093/
Reviewed-by: John Crispin

MIPS: APRP: Add VPE loader support for CMP platforms.

2014-01-22T19:19:02+00:00

This patch adds VPE loader support for platforms having a CMP.

Signed-off-by: Deng-Cheng Zhu 
Signed-off-by: Steven J. Hill 
Reviewed-by: Qais Yousef 
Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/6092/

MIPS: APRP: Split VPE loader into separate files.

2014-01-22T19:19:01+00:00

Split the VPE functionality in preparation for adding support
for CMP platforms. Common functions remain in the original file
and a new file contains code specific to platforms that do not
have a CMP present.

Signed-off-by: Deng-Cheng Zhu 
Signed-off-by: Steven J. Hill 
Reviewed-by: Qais Yousef 
Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/6094/

MIPS: Add debugfs file to print the segmentation control registers

2014-01-22T19:19:00+00:00

Add a new mips/segments debugfs file to print the 6 segmentation
control registers for supported cores. A sample from a proAptiv core
is given below:

Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/6137/
Segment   Virtual    Size   Access Mode   Physical   Caching   EU
-------   -------    ----   -----------   --------   -------   --
   0      e0000000   512M      MK           UND         U       0
   1      c0000000   512M      MSK          UND         U       0
   2      a0000000   512M      UK           000         2       0
   3      80000000   512M      UK           000         3       0
   4      40000000    1G       MUSK         UND         U       1
   5      00000000    1G       MUSK         UND         U       1

Reviewed-by: James Hogan 
Signed-off-by: Steven J. Hill 
Signed-off-by: Markos Chandras

MIPS: PowerTV: Remove support code.

2013-10-29T20:25:17+00:00

Nobody seems to care about this platform anymore and my attempts to find
somebody willing to provide some tlc for PowerTV have failed so far.

So let's nuke the bloody thing.

Signed-off-by: Ralf Baechle 
Patchwork: https://patchwork.linux-mips.org/patch/5910/