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  1. 06 Aug, 2019 5 commits
    • Arnd Bergmann's avatar
      mips: fix vdso32 build, again · 6393e606
      Arnd Bergmann authored 
      The generic vdso support adds the same #if hack in two places,
asm/vdso/vdso.h and config-n32-o32-env.c, but only the second
is actually used. The result lacks the BUILD_VDSO32_64 macro,
and that triggers a build error:

./include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"

Move the macro into the other place, and remove the duplicated
bits.
Reported-by: default avatarGuenter Roeck <linux@roeck-us.net>
Fixes: ee38d94a ("page flags: prioritize kasan bits over last-cpuid")
Fixes: 24640f23 ("mips: Add support for generic vDSO")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
      6393e606
    • Paul Burton's avatar
      MIPS: octeon: Remove ARCH_HAS_IRQ_PER_CPU · 905421ee
      Paul Burton authored 
      ARCH_HAS_IRQ_PER_CPU is unused anywhere in the kernel - remove the
definition.
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      905421ee
    • Paul Burton's avatar
      MIPS: octeon: Remove cpu_has_saa · ece51529
      Paul Burton authored 
      The cpu_has_saa feature macro was added along with Cavium Octeon CPU
support back in commit 5b3b1688 ("MIPS: Add Cavium OCTEON processor
support files to arch/mips/cavium-octeon.") but has never been used.

Remove the dead code.
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      ece51529
    • Zhou Yanjie's avatar
      MIPS: Ingenic: Disable broken BTB lookup optimization. · 053951dd
      Zhou Yanjie authored 
      In order to further reduce power consumption, the XBurst core
by default attempts to avoid branch target buffer lookups by
detecting & special casing loops. This feature will cause
BogoMIPS and lpj calculate in error. Set cp0 config7 bit 4 to
disable this feature.
Signed-off-by: default avatarZhou Yanjie <zhouyanjie@zoho.com>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: ralf@linux-mips.org
Cc: paul@crapouillou.net
Cc: jhogan@kernel.org
Cc: malat@debian.org
Cc: gregkh@linuxfoundation.org
Cc: tglx@linutronix.de
Cc: allison@lohutok.net
Cc: syq@debian.org
Cc: chenhc@lemote.com
Cc: jiaxun.yang@flygoat.com
      053951dd
    • Zhou Yanjie's avatar
      MIPS: Ingenic: Fix bugs when detecting X1000's L2 cache. · 579de8f8
      Zhou Yanjie authored 
      1.fix bugs when detecting L2 cache sets value.
2.fix bugs when detecting L2 cache ways value.
Signed-off-by: default avatarZhou Yanjie <zhouyanjie@zoho.com>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: ralf@linux-mips.org
Cc: paul@crapouillou.net
Cc: jhogan@kernel.org
Cc: malat@debian.org
Cc: gregkh@linuxfoundation.org
Cc: tglx@linutronix.de
Cc: allison@lohutok.net
Cc: syq@debian.org
Cc: chenhc@lemote.com
Cc: jiaxun.yang@flygoat.com
      579de8f8
  3. 30 Jul, 2019 13 commits
  5. 26 Jul, 2019 6 commits
    • Vincenzo Frascino's avatar
      mips: vdso: Fix flip/flop vdso building bug · cdab7e2c
      Vincenzo Frascino authored 
      Running "make" on an already compiled kernel tree will rebuild the
vdso library even if this has not been modified.

$ make
  GEN     Makefile
  Using linux as source for kernel
  CALL   linux/scripts/atomic/check-atomics.sh
  CALL   linux/scripts/checksyscalls.sh
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
  CHK     include/generated/compile.h
  VDSO    arch/mips/vdso/vdso.so.dbg.raw
  OBJCOPY arch/mips/vdso/vdso.so.raw
  GENVDSO arch/mips/vdso/vdso-image.c
  CC      arch/mips/vdso/vdso-image.o
  AR      arch/mips/vdso/built-in.a
  AR      arch/mips/built-in.a
  CHK     include/generated/autoksyms.h
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  AR      init/built-in.a
  LD      vmlinux.o
  MODPOST vmlinux.o
  MODINFO modules.builtin.modinfo
  KSYM    .tmp_kallsyms1.o
  KSYM    .tmp_kallsyms2.o
  LD      vmlinux
  SORTEX  vmlinux
  SYSMAP  System.map
  Building modules, stage 2.
  ITS     arch/mips/boot/vmlinux.gz.its
  OBJCOPY arch/mips/boot/vmlinux.bin
  MODPOST 7 modules
  GZIP    arch/mips/boot/vmlinux.bin.gz
  ITB     arch/mips/boot/vmlinux.gz.itb

The issue is generated by the fact that "if_changed" is called twice
in a single target.

Fix the build bug merging the two commands into a single function.
Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      cdab7e2c
    • Vincenzo Frascino's avatar
      mips: vdso: Fix source path · b4c0f7fa
      Vincenzo Frascino authored 
      The vdso library for o32 and n32 does not compile compile correctly when
building outside of the source tree due to a wrong inclusion path for
config-n32-o32-env.c resulting in the error below:

cc1: fatal error: arch/mips/vdso/config-n32-o32-env.c:
No such file or dnirectory
compilation terminated.
arch/mips/vdso/Makefile:153: recipe for target
'arch/mips/vdso/vgettimeofday-o32.o' failed
make[3]: *** [arch/mips/vdso/vgettimeofday-o32.o] Error 1
scripts/Makefile.build:490: recipe for target 'arch/mips/vdso' failed

Fix the config-n32-o32-env.c inclusion path prepending the $(srctree)
variable.
Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
[paul.burton@mips.com: Note that this occurs specifically when building
                       outside of the source tree.]
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      b4c0f7fa
    • Edward Matijević's avatar
      MIPS: BCM47XX: Add support for Netgear R6200 V1 · 42374b94
      Edward Matijević authored 
      The Netgear R6200 v1 uses a BCM4718A1 SOC and a BCM4352/BCM4360 for 5GHz
wireless. This patch adds support for detecting this model board and
registers the 3 buttons.

I have tested that the device can boot kernels 4.14 and 4.19 under
OpenWRT.

There is one issue that the LEDs on the device are controlled by a
74HC164 that uses bit-banging instead of SPI so it isn't accessible to
the kernel without adding a workaround. Without any workaround the
device on boot will flash all LEDs once then the power LED will remain
amber as all other LEDs stay off.
Signed-off-by: default avatarEdward Matijevic <motolav@gmail.com>
Acked-by: default avatarHauke Mehrtens <hauke@hauke-m.de>
[paul.burton@mips.com:
  - Sort bcm47xx_board_list_board_id alphabetically by board type.
  - Fix whitespace.
  - Wrap commit message & drop OpenWRT-based justification for
    bcm47xx_board_list_board_id being mis-sorted.]
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      42374b94
    • Vincenzo Frascino's avatar
      mips: Add clock_gettime64 entry point · 1f66c45d
      Vincenzo Frascino authored 
      With the release of Linux 5.1 has been added a new syscall,
clock_gettime64, that provided a 64 bit time value for a specified
clock_ID to make the kernel Y2038 safe on 32 bit architectures.

Update the mips32 specific vDSO library accordingly with what it has
been done for the kernel syscall exposing the clock_gettime64 entry
point.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      1f66c45d
    • Vincenzo Frascino's avatar
      mips: Add clock_getres entry point · abed3d82
      Vincenzo Frascino authored 
      The generic vDSO library provides an implementation of clock_getres()
that can be leveraged by each architecture.

Add clock_getres() entry point on mips.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      abed3d82
    • Vincenzo Frascino's avatar
      mips: Add support for generic vDSO · 24640f23
      Vincenzo Frascino authored 
      The mips vDSO library requires some adaptations to take advantage of the
newly introduced generic vDSO library.

Introduce the following changes:
 - Modification of vdso.c to be compliant with the common vdso datapage
 - Use of lib/vdso for gettimeofday

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
[paul.burton@mips.com: Prepend $(src) to config-n32-o32-env.c path.]
Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
      24640f23
  7. 23 Jul, 2019 4 commits
  9. 22 Jul, 2019 1 commit
  11. 21 Jul, 2019 11 commits
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