linux-toradex.git/arch/openrisc/kernel, branch v4.10 Linux kernel for Apalis and Colibri modules openrisc: Add _text symbol to fix ksym build error 2017-01-02T01:35:11+00:00 Stafford Horne shorne@gmail.com 2016-12-14T12:27:57+00:00 086cc1c31a0ec075dac02425367c871bb65bc2c9 The build robot reports: .tmp_kallsyms1.o: In function `kallsyms_relative_base': >> (.rodata+0x8a18): undefined reference to `_text' This is when using 'make alldefconfig'. Adding this _text symbol to mark the start of the kernel as in other architecture fixes this. Signed-off-by: Stafford Horne <shorne@gmail.com> Acked-by: Jonas Bonn <jonas@southpole.se> 
The build robot reports:

   .tmp_kallsyms1.o: In function `kallsyms_relative_base':
>> (.rodata+0x8a18): undefined reference to `_text'

This is when using 'make alldefconfig'. Adding this _text symbol to mark
the start of the kernel as in other architecture fixes this.

Signed-off-by: Stafford Horne <shorne@gmail.com>
Acked-by: Jonas Bonn <jonas@southpole.se>
clocksource: Use a plain u64 instead of cycle_t 2016-12-25T10:04:12+00:00 Thomas Gleixner tglx@linutronix.de 2016-12-21T19:32:01+00:00 a5a1d1c2914b5316924c7893eb683a5420ebd3be There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org> 
There is no point in having an extra type for extra confusion. u64 is
unambiguous.

Conversion was done with the following coccinelle script:

@rem@
@@
-typedef u64 cycle_t;

@fix@
typedef cycle_t;
@@
-cycle_t
+u64

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24T19:46:01+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-12-24T19:46:01+00:00 7c0f6ba682b9c7632072ffbedf8d328c8f3c42ba This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
This was entirely automated, using the script by Al:

  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
  sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/openrisc: add option to skip DMA sync as a part of mapping 2016-12-15T00:04:07+00:00 Alexander Duyck alexander.h.duyck@intel.com 2016-12-14T23:05:03+00:00 043b42bcbbc6bc87c457b156041d74d51f6cebc2 This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Link: http://lkml.kernel.org/r/20161110113524.76501.87966.stgit@ahduyck-blue-test.jf.intel.com Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Cc: Jonas Bonn <jonas@southpole.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
avoid invoking cache line invalidation if the driver will just handle it
via a sync_for_cpu or sync_for_device call.

Link: http://lkml.kernel.org/r/20161110113524.76501.87966.stgit@ahduyck-blue-test.jf.intel.com
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
openrisc: include l.swa in check for write data pagefault 2016-12-12T14:10:26+00:00 Stefan Kristiansson stefan.kristiansson@saunalahti.fi 2014-07-03T17:46:40+00:00 cdb75442fedff8cc3ddedbe6e41d00b471634e17 During page fault handling we check the last instruction to understand if the fault was for a read or for a write. By default we fall back to read. New instructions were added to the openrisc 1.1 spec for an atomic load/store pair (l.lwa/l.swa). This patch adds the opcode for l.swa (0x33) allowing it to be treated as a write operation. Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> [shorne@gmail.com: expanded a bit on the comment] Signed-off-by: Stafford Horne <shorne@gmail.com> 
During page fault handling we check the last instruction to understand
if the fault was for a read or for a write.  By default we fall back to
read.  New instructions were added to the openrisc 1.1 spec for an
atomic load/store pair (l.lwa/l.swa).

This patch adds the opcode for l.swa (0x33) allowing it to be treated as
a write operation.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
[shorne@gmail.com: expanded a bit on the comment]
Signed-off-by: Stafford Horne <shorne@gmail.com>
openrisc: Updates after openrisc.net has been lost 2016-12-12T14:10:19+00:00 Stafford Horne shorne@gmail.com 2016-03-21T08:11:10+00:00 d01e1f35fee54fd7131e161956e609dfd47c1056 The openrisc.net domain expired and was taken over by squatters. These updates point documentation to the new domain, mailing lists and git repos. Also, Jonas is not the main maintainer anylonger, he reviews changes but does not maintain a repo or sent pull requests. Updating this to add Stafford and Stefan who are the active maintainers. Acked-by: Olof Kindgren <olof.kindgren@gmail.com> Signed-off-by: Stafford Horne <shorne@gmail.com> 
The openrisc.net domain expired and was taken over by squatters.
These updates point documentation to the new domain, mailing lists
and git repos.

Also, Jonas is not the main maintainer anylonger, he reviews changes
but does not maintain a repo or sent pull requests.  Updating this to
add Stafford and Stefan who are the active maintainers.

Acked-by: Olof Kindgren <olof.kindgren@gmail.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
openrisc: Consolidate setup to use memblock instead of bootmem 2016-12-12T14:10:00+00:00 Stafford Horne shorne@gmail.com 2016-04-03T10:14:49+00:00 266c7fad157265bb54d17db1c9545f2aaa488643 Clearing out one todo item. Use the memblock boot time memory which is the current standard. Tested-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jonas <jonas@southpole.se> Signed-off-by: Stafford Horne <shorne@gmail.com> 
Clearing out one todo item. Use the memblock boot time memory
which is the current standard.

Tested-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jonas <jonas@southpole.se>
Signed-off-by: Stafford Horne <shorne@gmail.com>
openrisc: remove the redundant of_platform_populate 2016-12-12T14:09:57+00:00 Rob Herring robh@kernel.org 2016-08-30T15:10:59+00:00 994894c3f710f5d8ca89d22988fe715db57bbc87 The of_platform_populate call in the openrisc arch code is now redundant as the DT core provides a default call. Openrisc has a NULL match table which means only top level nodes with compatible strings will have devices creates. The default version will also descend nodes in the match table such as "simple-bus" which should be fine as openrisc doesn't have any of these (though it is preferred that memory-mapped peripherals be grouped under a bus node(s)). Signed-off-by: Rob Herring <robh@kernel.org> Cc: Jonas Bonn <jonas@southpole.se> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Stafford Horne <shorne@gmail.com> 
The of_platform_populate call in the openrisc arch code is now redundant
as the DT core provides a default call. Openrisc has a NULL match table
which means only top level nodes with compatible strings will have
devices creates. The default version will also descend nodes in the
match table such as "simple-bus" which should be fine as openrisc
doesn't have any of these (though it is preferred that memory-mapped
peripherals be grouped under a bus node(s)).

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jonas Bonn <jonas@southpole.se>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Stafford Horne <shorne@gmail.com>
openrisc: Support both old (or32) and new (or1k) toolchain 2016-12-12T14:09:40+00:00 Guenter Roeck linux@roeck-us.net 2014-07-19T21:39:08+00:00 1f43e235dfc44be335e484dae88928e997036026 The output file format for or1k has changed from "elf32-or32" to "elf32-or1k". Select the correct output format automatically to be able to compile the kernel with both toolchain variants. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Stafford Horne <shorne@gmail.com> 
The output file format for or1k has changed from "elf32-or32"
to "elf32-or1k". Select the correct output format automatically
to be able to compile the kernel with both toolchain variants.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Stafford Horne <shorne@gmail.com>
openrisc: Add thread-local storage (TLS) support 2016-12-12T14:09:28+00:00 Christian Svensson blue@cmd.nu 2014-01-25T15:48:54+00:00 e60aa2fba4678d4e7e2d28ef4f2110084d0b150a Historically OpenRISC GCC has reserved r10 which we now use to hold the thread pointer for thread-local storage (TLS). Signed-off-by: Christian Svensson <blue@cmd.nu> Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Stafford Horne <shorne@gmail.com> 
Historically OpenRISC GCC has reserved r10 which we now use to hold
the thread pointer for thread-local storage (TLS).

Signed-off-by: Christian Svensson <blue@cmd.nu>
Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Stafford Horne <shorne@gmail.com>