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  1. 22 9月, 2014 4 次提交
    • Z
      MIPS: DMA: Add cma support · f4649382
      由 Zubair Lutfullah Kakakhel 提交于 
      Adds cma support to the MIPS architecture.

cma uses memblock. However, mips uses bootmem.
bootmem is informed about any regions reserved by memblock

dma api is modified to use cma reserved memory regions when available

Tested using cma_test. cma_test is a simple driver that assigns blocks
of memory from cma reserved sections.
Signed-off-by: NZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Acked-by: NMichal Nazarewicz <mina86@mina86.com>
Cc: catalin.marinas@arm.com
Cc: will.deacon@arm.com
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: arnd@arndb.de
Cc: gregkh@linuxfoundation.org
Cc: m.szyprowski@samsung.com
Cc: x86@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7360/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      f4649382
    • A
      MIPS: sead3: Move device-trees to arch/mips/boot/dts/ · f262b5f2
      由 Andrew Bresticker 提交于 
      Move the SEAD-3 device-tree to arch/mips/boot/dts/ and update the
Makefiles accordingly.  Since SEAD-3 requires the device-tree to be
built into the kernel, select BUILTIN_DTB when building for SEAD-3.
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7555/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      f262b5f2
    • A
      MIPS: Octeon: Move device-trees to arch/mips/boot/dts/ · e326479f
      由 Andrew Bresticker 提交于 
      Move the Octeon device-trees to arch/mips/boot/dts/ and update the
Makefiles accordingly.  Since Octeon requires the device-tree to be
built into the kernel, select BUILTIN_DTB as well.
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7556/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      e326479f
    • A
      MIPS: Create common infrastructure for building built-in device-trees · 7fafb068
      由 Andrew Bresticker 提交于 
      In preparation for moving the device-trees to a common location,
introduce the config option BUILTIN_DTB, which can be selected by
platforms that use a device-tree built into the kernel image, and
create a Makefile to build the device-trees in arch/mips/boot/dts/.
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7564/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      7fafb068
  3. 30 8月, 2014 1 次提交
  5. 26 8月, 2014 2 次提交
  7. 09 8月, 2014 1 次提交
    • V
      kexec: load and relocate purgatory at kernel load time · 12db5562
      由 Vivek Goyal 提交于 
      Load purgatory code in RAM and relocate it based on the location.
Relocation code has been inspired by module relocation code and purgatory
relocation code in kexec-tools.

Also compute the checksums of loaded kexec segments and store them in
purgatory.

Arch independent code provides this functionality so that arch dependent
bootloaders can make use of it.

Helper functions are provided to get/set symbol values in purgatory which
are used by bootloaders later to set things like stack and entry point of
second kernel etc.
Signed-off-by: NVivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      12db5562
  9. 02 8月, 2014 2 次提交
  11. 31 7月, 2014 2 次提交
  13. 30 7月, 2014 2 次提交
    • J
      MIPS: BCM63xx: Sync MIPS counters during CPU bringup · fc264022
      由 Jonas Gorski 提交于 
      We are using the mips counters as the clock source, so we need to ensure
they are synced, else e.g. gettimeofday will return different values
depending on which core it was run.

Observed difference was about 8 seconds, causing ~8 seconds ping or time
running backwards for some programs.
Signed-off-by: NJonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7265/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      fc264022
    • M
      MIPS: Alchemy: clock framework integration of onchip clocks · 47440229
      由 Manuel Lauss 提交于 
      This patch introduces common clock framework integration for all
configurable on-chip clocks on Alchemy chips:

- 2 or 3 PLLs which generate integer multiples of the root rate 12MHz,
- 6 dividers which take one of the 3 PLLs as input and divide their
  rate by either multiples of 2 or 1 (Au1300).
- another bank of up to 6 muxes which take either one of the 6
  above dividers or one of the PLLs directly and divide their rate
  further by 1, 2, 3 or 4.
- a few other sources which are used by onchip peripherals and are
  informational.

This implementation will take the clock tree as it was set up
by boot firmware: all in-kernel boards should continue to work
without having to set up the clock tree in board code.

CLK_IGNORE_DISABLED will be removed once all drivers have been
converted.
Signed-off-by: NManuel Lauss <manuel.lauss@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7466/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      47440229
  15. 19 7月, 2014 1 次提交
  17. 26 6月, 2014 1 次提交
    • R
      MIPS: Lasat: Fix build error if CRC32 is not enabled. · 16f0bbbc
      由 Ralf Baechle 提交于 
      Kconfig doesn't select CRC32 so it's possible to build a Lasat kernel
without CONFIG_CRC32 resulting in a build error:

  LD      vmlinux
arch/mips/built-in.o: In function `lasat_init_board_info':
(.text+0x22c): undefined reference to `crc32_le'
arch/mips/built-in.o: In function `lasat_write_eeprom_info':
(.text+0x7fc): undefined reference to `crc32_le'
make: *** [vmlinux] Error 1
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      16f0bbbc
  19. 02 6月, 2014 2 次提交
  21. 31 5月, 2014 3 次提交
  23. 30 5月, 2014 3 次提交
  25. 28 5月, 2014 4 次提交
    • P
      MIPS: include cpuidle Kconfig menu · c095ebaf
      由 Paul Burton 提交于 
      This patch simply includes the cpuidle Kconfig entries in preparation
for cpuidle drivers used on MIPS systems.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
      c095ebaf
    • P
      MIPS: smp-cps: hotplug support · 1d8f1f5a
      由 Paul Burton 提交于 
      This patch adds support for offlining CPUs via hotplug when using the
CONFIG_MIPS_CPS SMP implementation. When a CPU is offlined one of 2
things will happen:

  - If the CPU is part of a core which implements the MT ASE and there
    is at least one other VPE online within that core then the VPE will
    be halted by settings its TCHalt bit.

  - Otherwise if supported the core will be powered down via the CPC.

  - Otherwise the CPU will hang by executing an infinite loop.

Bringing CPUs back online is then a process of either clearing the
appropriate VPEs TCHalt bit or powering up the appropriate core via the
CPC. Throughout the process the struct core_boot_config vpe_mask field
must be maintained such that mips_cps_boot_vpes will start & stop the
correct VPEs.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
      1d8f1f5a
    • P
      MIPS: pm-cps: add PM state entry code for CPS systems · 3179d37e
      由 Paul Burton 提交于 
      This patch adds code to generate entry & exit code for various low power
states available on systems based around the MIPS Coherent Processing
System architecture (ie. those with a Coherence Manager, Global
Interrupt Controller & for >=CM2 a Cluster Power Controller). States
supported are:

  - Non-coherent wait. This state first leaves the coherent domain and
    then executes a regular MIPS wait instruction. Power savings are
    found from the elimination of coherency interventions between the
    core and any other coherent requestors in the system.

  - Clock gated. This state leaves the coherent domain and then gates
    the clock input to the core. This removes all dynamic power from the
    core but leaves the core at the mercy of another to restart its
    clock. Register state is preserved, but the core can not service
    interrupts whilst its clock is gated.

  - Power gated. This deepest state removes all power input to the core.
    All register state is lost and the core will restart execution from
    its BEV when another core powers it back up. Because register state
    is lost this state requires cooperation with the CONFIG_MIPS_CPS SMP
    implementation in order for the core to exit the state successfully.

The code will detect which states are available on the current system
during boot & generate the entry/exit code for those states. This will
be used by cpuidle & hotplug implementations.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
      3179d37e
    • T
      MIPS: SNI: Remove USE_GENERIC_EARLY_PRINTK_8250 · 5ec79bf9
      由 Thomas Bogendoerfer 提交于 
      SNI RM code has its own EARLY_PRINTK support no need for some generic 8250
stuff.
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6715/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      5ec79bf9
  27. 24 5月, 2014 2 次提交
  29. 23 5月, 2014 1 次提交
  31. 02 5月, 2014 1 次提交
  33. 24 4月, 2014 1 次提交
  35. 08 4月, 2014 1 次提交
  37. 01 4月, 2014 4 次提交
  39. 31 3月, 2014 1 次提交
  41. 27 3月, 2014 1 次提交