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Add SATA PHY clock which are derived from the USB PHY1 clock. Note that this
patch derives the SATA PHY clock from USB PHY1 clock gate so that the SATA
driver can ungate both the SATA PHY clock and USB PHY1 clock for the SATA to
work correctly.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Enable STMPE touchscreen support as this is used on M53EVK.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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The macro name IMX6SL_CLK_CLK_END is a little insane. Rename it to
IMX6SL_CLK_END.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Instead of selecting PINCTRL on individual SoC, let's select it at IMX
sub-architecure level.
While at it, it also adds the missing PINCTRL_IMX50 selection for
SOC_IMX50.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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ARM clock is sourcing from pll1_sw, and pll1_sw can be either from
pll1_sys or step, so we should enable arm clock during clock
initialization instead of pll1_sys, otherwise, arm clock's usecount
would be incorrect and PLL1 will never be disabled even it is not
used.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Use clock defines in order to make devicetrees more
human readable.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Update arch.apic_base before triggering recalculate_apic_map. Otherwise
the recalculation will work against the previous state of the APIC and
will fail to build the correct map when an APIC is hardware-enabled
again.
This fixes a regression of 1e08ec4a13.
Cc: stable@vger.kernel.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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It's too valuable for debugging to be disabled.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Also fix a few printf-style formats, to get rid of the following compiler
warnings when DEBUG is enabled:
arch/m68k/kernel/traps.c: In function ‘access_error060’:
arch/m68k/kernel/traps.c:166: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long unsigned int’
arch/m68k/kernel/traps.c: In function ‘bus_error030’:
arch/m68k/kernel/traps.c:568: warning: format ‘%#lx’ expects type ‘long unsigned int’, but argument 2 has type ‘void *’
arch/m68k/kernel/traps.c:682: warning: format ‘%#lx’ expects type ‘long unsigned int’, but argument 2 has type ‘void *’
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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When DEBUG is enabled, do_page_fault() may dereference a NULL pointer,
causing recursive bus errors.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Cfr. commit 7934779a69f1184f29d786b89e77dd14519bd226 ("Driver-Core: disable
/sbin/hotplug by default").
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
"A bit more endian problems found during testing of 3.13 and a few
other simple fixes and regressions fixes"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix alignment of secondary cpu spin vars
powerpc: Align p_end
powernv/eeh: Add buffer for P7IOC hub error data
powernv/eeh: Fix possible buffer overrun in ioda_eeh_phb_diag()
powerpc: Make 64-bit non-VMX __copy_tofrom_user bi-endian
powerpc: Make unaligned accesses endian-safe for powerpc
powerpc: Fix bad stack check in exception entry
powerpc/512x: dts: disable MPC5125 usb module
powerpc/512x: dts: remove misplaced IRQ spec from 'soc' node (5125)
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Due to incorrect clock specified in MDMA0 node, using MDMA0 controller
could cause system failures, due to wrong clock being controlled. This
patch fixes this by specifying correct clock.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
[t.figa: Corrected commit message and description.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
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When using the CLP interface to enable or disable a pci device a
valid function handle needs to be delivered. So far our assumption
was that we always have an up-to-date version of the function handle
(since it doesn't change when the device is in use). This assumption
is incorrect if the pci device is enabled or disabled outside of our
control. When we are notified about such a change we already receive
the new function handle. Just use it.
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Merge a pile of fixes that went into the "merge" branch (3.13-rc's) such
as Anton Little Endian fixes.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The SLB save area is shared with the hypervisor and is defined
as big endian, so we need to byte swap on little endian builds.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anatolij writes:
Please pull two DTS fixes for MPC5125 tower board. Without
them the v3.13-rcX kernels do not boot.
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This patch updates the generic iommu backend code to use the
it_page_shift field to determine the iommu page size instead of
using hardcoded values.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This patch adds a it_page_shift field to struct iommu_table and
initiliases it to 4K for all platforms.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The powerpc iommu uses a hardcoded page size of 4K. This patch changes
the name of the IOMMU_PAGE_* macros to reflect the hardcoded values. A
future patch will use the existing names to support dynamic page
sizes.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This removes the REDBOOT Kconfig parameter,
which was no longer used anywhere in the source code
and Makefiles.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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With recent machine check patch series changes, The exception vectors
starting from 0x4300 are now overflowing with allyesconfig. Fix that by
moving machine_check_common and machine_check_handle_early code out of
that region to make enough room for exception vector area.
Fixes this build error reportes by Stephen:
arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:958: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:959: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:983: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:984: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1003: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1013: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1014: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1015: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1016: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1017: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:1018: Error: attempt to move .org backwards
[Moved the code further down as it introduced link errors due to too long
relative branches to the masked interrupts handlers from the exception
prologs. Also removed the useless feature section --BenH
]
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Commit 5c0484e25ec0 ('powerpc: Endian safe trampoline') resulted in
losing proper alignment of the spinlock variables used when booting
secondary CPUs, causing some quite odd issues with failing to boot on
PA Semi-based systems.
This showed itself on ppc64_defconfig, but not on pasemi_defconfig,
so it had gone unnoticed when I initially tested the LE patch set.
Fix is to add explicit alignment instead of relying on good luck. :)
[ It appears that there is a different issue with PA Semi systems
however this fix is definitely correct so applying anyway -- BenH
]
Fixes: 5c0484e25ec0 ('powerpc: Endian safe trampoline')
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=67811
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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p_end is an 8 byte value embedded in the text section. This means it
is only 4 byte aligned when it should be 8 byte aligned. Fix this
by adding an explicit alignment.
This fixes an issue where POWER7 little endian builds with
CONFIG_RELOCATABLE=y fail to boot.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Prevent ioda_eeh_hub_diag() from clobbering itself when called by supplying
a per-PHB buffer for P7IOC hub diagnostic data. Take care to inform OPAL of
the correct size for the buffer.
[Small style change to the use of sizeof -- BenH]
Signed-off-by: Brian W Hart <hartb@linux.vnet.ibm.com>
Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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PHB diagnostic buffer may be smaller than PAGE_SIZE, especially when
PAGE_SIZE > 4KB.
Signed-off-by: Brian W Hart <hartb@linux.vnet.ibm.com>
Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The powerpc 64-bit __copy_tofrom_user() function uses shifts to handle
unaligned invocations. However, these shifts were designed for
big-endian systems: On little-endian systems, they must shift in the
opposite direction.
This commit relies on the C preprocessor to insert the correct shifts
into the assembly code.
[ This is a rare but nasty LE issue. Most of the time we use the POWER7
optimised __copy_tofrom_user_power7 loop, but when it hits an exception
we fall back to the base __copy_tofrom_user loop. - Anton ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The generic put_unaligned/get_unaligned macros were made endian-safe by
calling the appropriate endian dependent macros based on the endian type
of the powerpc processor.
Signed-off-by: Rajesh B Prathipati <rprathip@linux.vnet.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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In EXCEPTION_PROLOG_COMMON() we check to see if the stack pointer (r1)
is valid when coming from the kernel. If it's not valid, we die but
with a nice oops message.
Currently we allocate a stack frame (subtract INT_FRAME_SIZE) before we
check to see if the stack pointer is negative. Unfortunately, this
won't detect a bad stack where r1 is less than INT_FRAME_SIZE.
This patch fixes the check to compare the modified r1 with
-INT_FRAME_SIZE. With this, bad kernel stack pointers (including NULL
pointers) are correctly detected again.
Kudos to Paulus for finding this.
Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The chosen nodes are nowadays pretty useless, since they will be overriden by
the bootloader anyway.
We can thus safely remove them.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The aliases are shared across boards are really belong to the DTSI.
Move them there.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another smallish batch of fixes, it's been quiet due to the holidays.
Nothing controversial here, a handful of things across the board"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: pxa: fix USB gadget driver compilation regression
ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy booting
ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data
ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL
ARM: shmobile: r8a7790: fix shdi resource sizes
ARM: shmobile: bockw: fixup DMA mask
ARM: shmobile: armadillo: Add PWM backlight power supply
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
From Simon Horman:
Second Round of Renesas ARM Based SoC Updates for v3.14
* Global
- Add select MIGHT_HAVE_PCI for PCI-AHB bridge code
* r7s72100 SoC (RZ/A1H)
- clks: remove duplicated clock from r7s72100
* R-Car Gen 2: r8a7791 (R-Car M2) and r8a7790 (R-Car H2)
* Initialize CCF before clock sources
* Do not setup timer in non-secure mode
* r8a7791 (R-Car M2)
- Conditionally select MICREL_PHY
- Add clock index macros for DT sources
- Add Ether clock
* r8a7790 (R-Car H2)
- Add clock index macros for DT sources
- Add I2C support
* r8a7778 (R-Car M1)
- Add USB Func DMAEngine support
- camera-rcar header cleanup
- Add SSIx DMAEngine support
* sh73a0 (SH-Mobile AG5)
- Add FSI clock support for DT
* tag 'renesas-soc2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
arm: shmobile: clks: remove duplicated clock from r7s72100
ARM: shmobile: koelsch: Conditionally select MICREL_PHY
ARM: shmobile: rcar-gen2: Initialize CCF before clock sources
ARM: shmobile: r8a7791: Add clock index macros for DT sources
ARM: shmobile: r8a7790: Add clock index macros for DT sources
ARM: shmobile: Add select MIGHT_HAVE_PCI for PCI-AHB bridge code
ARM: shmobile: r8a7778: add USB Func DMAEngine support
ARM: rcar-gen2: Do not setup timer in non-secure mode
ARM: shmobile: r8a7791: add Ether clock
ARM: shmobile: r8a7778: camera-rcar header cleanup
ARM: shmobile: sh73a0: add FSI clock support for DT
ARM: shmobile: r8a7790: add I2C support
ARM: shmobile: r8a7778: add SSIx DMAEngine support
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"There is a small EFI fix and a big power regression fix in this batch.
My queue also had a fix for downing a CPU when there are insufficient
number of IRQ vectors available, but I'm holding that one for now due
to recent bug reports"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Don't select EFI from certain special ACPI drivers
x86 idle: Repair large-server 50-watt idle-power regression
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https://bitbucket.org/emiliolopez/linux into sunxi/dt-for-3.14
Allwinner sunXi SoCs DT changes for clocks
This contains the DT parts of the "[PATCH v3 00/13] clk: sunxi: add PLL5
and PLL6 support" series. It adds DT nodes for PLL4/5/6 and mod0 clocks
on most sunxi platforms.
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards
From Simon Horman:
Second Round of Renesas ARM Based SoC Defconfig Updates for v3.14
* r7s72100 SoC (RZ/A1H) based Genmai Board
- Fixup I2C device on defconfig
- Add gpio regulator support on defconfig
* r8a7791 (R-Car M2) based Koelsch board
- Do not disable CONFIG_{INOTIFY_USER,UNIX} in defconfig
- Enable CONFIG_PACKET in defconfig
- Enable Ether in defconfig
* r8a7740 (R-Mobile A1) based Armadillo board
- Enable backlight control in defconfig
* r8a7740 (R-Mobile A1) based Armadillo board
- Rename ARCH_SHMOBILE to ARCH_SHMOBILE_LEGACY
* tag 'renesas-defconfig2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: koelsch: Do not disable CONFIG_{INOTIFY_USER,UNIX} in defconfig
ARM: shmobile: koelsch: Enable CONFIG_PACKET in defconfig
ARM: shmobile: armadillo800eva: Enable backlight control in defconfig
ARM: shmobile: Koelsch: enable Ether in defconfig
ARM: shmobile: genmai: Rename ARCH_SHMOBILE to ARCH_SHMOBILE_LEGACY
ARM: shmobile: lager: fixup I2C device on defconfig
ARM: shmobile: lager: add gpio regulator support on defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
From Simon Horman:
Second Round of Renesas ARM Based SoC DT Updates for v3.13
* r8a7791 (R-Car M2) based Koelsch board
- Add GPIO keys
* sh73a0 (SH-Mobile AG5) based kzm9g board
- Add FSI support
* tag 'renesas-dt2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: koelsch: dts: Add gpio-keys device
ARM: shmobile: kzm9g: add FSI support for DTS
ARM: shmobile: sh73a0: add FSI support via DTSI
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup
From Simon Horman:
Second Round of Renesas ARM based SoC cleanups for v3.14
* r8a7779 SoC (R-Car H1)
- Remove unnecessary platform device from header file
* tag 'renesas-cleanup2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: remove unnecessary platform_device as header cleanup
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards
From Simon Horman:
Renesas ARM based SoC board updates for v3.14
* Global
- Kconfig: Mention Renesas ARM SoCs instead of SH-Mobile
* r7s72100 SoC (RZ/A1H) based Genmai Board
- Add Multiplatform support
- Add Reference DT
* r8a7791 (R-Car M2) based Koelsch board
- Add pinctrl_register_mappings() for Koelsch
- Hook up SW30-SW36 on Koelsch
- Mark GPIO keys as wake-up sources
- Use ->init_late()
- Add Multiplatform support
- Set .debounce_interval for GPIO keys
- Add SW2 to GPIO keys
- Add Led 6, 7 and 8 support
- Add reference DT
- Enable PFC/GPIO
* r8a7790 (R-Car H2) based Lager board
- Add gpio/fixed regulator for SDHI
- Add SPI FLASH support on QSPI
- Mark GPIO keys as wake-up sources
- Use ->init_late()
- Set .debounce_interval for GPIO keys
* r8a7778 (R-Car M1) based Bock-W board
- bockw: remove unused RSND_SSI_CLK_FROM_ADG
- Set .debounce_interval for GPIO keys
- Correct FPGA ioremap area
- Use regulator for MMCIF
* r8a7740 (R-Mobile A1) based Armadillo board
- Correct FSI address size
* sh7374 (SH-Mobile AP4) based Mackerel board
- Use pinconf API to configure pin pull-down
- clk_round_rate() can return a zero to indicate an error
* tag 'renesas-boards-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (75 commits)
ARM: shmobile: lager: add gpio/fixed regulator for SDHI
ARM: shmobile: bockw: remove unused RSND_SSI_CLK_FROM_ADG
ARM: shmobile: armadillo: fixup FSI address size
ARM: Kconfig: Mention Renesas ARM SoCs instead of SH-Mobile
ARM: shmobile: mackerel: Use pinconf API to configure pin pull-down
ARM: shmobile: Lager:add SPI FLASH support on QSPI
ARM: shmobile: mackerel: clk_round_rate() can return a zero to indicate an error
ARM: shmobile: Add pinctrl_register_mappings() for Koelsch
ARM: shmobile: Use ->init_late() on Lager
ARM: shmobile: Hook up SW30-SW36 on Koelsch
ARM: shmobile: koelsch: mark GPIO keys as wake-up sources
ARM: shmobile: Use ->init_late() on Koelsch
ARM: shmobile: lager: mark GPIO keys as wake-up sources
ARM: shmobile: r7s72100 Genmai Multiplatform
ARM: shmobile: r7s72100 Genmai DT reference C bits
ARM: shmobile: r7s72100 Genmai DT reference DTS bits
ARM: shmobile: Initial r8a7791 and Koelsch multiplatform support
ARM: shmobile: koelsch: set .debounce_interval
ARM: shmobile: lager: set .debounce_interval
ARM: shmobile: bockw: add pin pull-up setting for SDHI
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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There's no need to save the runtime map details in global variables, the
values are only required to pass to efi_runtime_map_setup().
And because 'nr_efi_runtime_map' isn't needed, get_nr_runtime_map() can
be deleted along with 'efi_data_len'.
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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Currently e820_reserve_setup_data() is called before parsing early
params, it works in normal case. But for memmap=exactmap, the final
memory ranges are created after parsing memmap= cmdline params, so the
previous e820_reserve_setup_data() has no effect. For example,
setup_data ranges will still be marked as normal system ram, thus when
later sysfs driver ioremap them kernel will warn about mapping normal
ram.
This patch fix it by moving the e820_reserve_setup_data() callback after
parsing early params so they can be set as reserved ranges and later
ioremap will be fine with it.
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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kexec-tools use boot_params for getting the 1st kernel hardware_subarch,
the kexec kernel EFI runtime support also needs to read the old efi_info
from boot_params. Currently it exists in debugfs which is not a good
place for such infomation. Per HPA, we should avoid "sploit debugfs".
In this patch /sys/kernel/boot_params are exported, also the setup_data is
exported as a subdirectory. kexec-tools is using debugfs for hardware_subarch
for a long time now so we're not removing it yet.
Structure is like below:
/sys/kernel/boot_params
|__ data /* boot_params in binary*/
|__ setup_data
| |__ 0 /* the first setup_data node */
| | |__ data /* setup_data node 0 in binary*/
| | |__ type /* setup_data type of setup_data node 0, hex string */
[snip]
|__ version /* boot protocal version (in hex, "0x" prefixed)*/
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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Old kexec-tools can not load new kernels. The reason is kexec-tools does
not fill efi_info in x86 setup header previously, thus EFI failed to
initialize. In new kexec-tools it will by default to fill efi_info and
pass other EFI required infomation to 2nd kernel so kexec kernel EFI
initialization can succeed finally.
To prevent from breaking userspace, add a new xloadflags bit so
kexec-tools can check the flag and switch to old logic.
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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Add a new setup_data type SETUP_EFI for kexec use. Passing the saved
fw_vendor, runtime, config tables and EFI runtime mappings.
When entering virtual mode, directly mapping the EFI runtime regions
which we passed in previously. And skip the step to call
SetVirtualAddressMap().
Specially for HP z420 workstation we need save the smbios physical
address. The kernel boot sequence proceeds in the following order.
Step 2 requires efi.smbios to be the physical address. However, I found
that on HP z420 EFI system table has a virtual address of SMBIOS in step
1. Hence, we need set it back to the physical address with the smbios
in efi_setup_data. (When it is still the physical address, it simply
sets the same value.)
1. efi_init() - Set efi.smbios from EFI system table
2. dmi_scan_machine() - Temporary map efi.smbios to access SMBIOS table
3. efi_enter_virtual_mode() - Map EFI ranges
Tested on ovmf+qemu, lenovo thinkpad, a dell laptop and an
HP z420 workstation.
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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This patch adds low level debug uart support to Broadcom mobile based
SOCs.
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Tested-by: Markus Mayer <markus.mayer@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Tested-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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There are two SCHED_HRTICK config entries in Kconfig.
This looks like a merge mistake. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Modern ARM CPUs can perform efficient unaligned memory accesses in
hardware and this feature is relied up on by code such as the dcache
word-at-a-time name hashing.
This patch selects HAVE_EFFICIENT_UNALIGNED_ACCESS for these cores and
reworks the kconfig select logic for DCACHE_WORD_ACCESS to use the new
symbol.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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