Add support for the in-kernel timer emulation.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 003300de6c3e51934fb52eb2677f6f4fb4996cbd
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Wire the PSCI backend into the exit handling code.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: dcd2e40c1e1cce302498d16d095b0f8a30326f74
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Handle the exit of a VM, decoding the exit reason from HYP mode
and calling the corresponding handler.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: c4b1afd022e93eada6ee4b209be37101cd4b3494
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Add support for the in-kernel GIC emulation.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 1f17f3b6044d8a81a74dc6c962b3b38a7336106b
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
The HYP mode world switch in all its glory.
Implements save/restore of host/guest registers, EL2 trapping,
IPA resolution, and additional services (tlb invalidation).
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 55c7401d92e16360e0987afe39355f1eb6300f31
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
The software breakpoint handlers are hooked in directly from ptrace,
which makes it difficult to add additional handlers for things like
kprobes and kgdb.
This patch moves the handling code into debug-monitors.c, where we can
dispatch to different debug subsystems more easily.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 1442b6ed249d2b3d2cfcf45b65ac64393495c96c
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
As is done for other architectures, sort the exception table at
build-time rather than during boot.
Since sortextable appears to be a standalone C program relying on the
host elf.h to provide EM_AARCH64, I've had to add a conditional check in
order to allow cross-compilation on machines that aren't running a
bleeding-edge libc-dev.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: adace89562c7a9645b8dc84f6e1ac7ba8756094e
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
When using an IOMMU for device mappings, it is necessary to keep a
pointer between the device and the IOMMU to which it is attached in
order to obtain the correct IOMMU when attaching the device to a domain.
This patch adds an iommu pointer to the dev_archdata structure, in a
similar manner to other architectures (ARM, PowerPC, x86, ...).
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 73150c983ac1f9b7653cfd3823b1ad4a44aad3bf
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
pte_index is a useful helper outside of arch/arm64, for things like the
ARM SMMU driver, so rename __pte_index to pte_index to be consistent
with both arch/arm/ and also the definitions of pmd_index and pgd_index.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 9ab6d02fddc6831b166812956ff387d7112ff626
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Under arm64, we will calibrate the delay loop statically using a known
timer frequency, so delete read_current_timer(), or it will cause
compiling issue with allmodconfig.
The related error:
ERROR: "read_current_timer" [lib/rbtree_test.ko] undefined!
ERROR: "read_current_timer" [lib/interval_tree_test.ko] undefined!
ERROR: "read_current_timer" [fs/ext4/ext4.ko] undefined!
ERROR: "read_current_timer" [crypto/tcrypt.ko] undefined!
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 6916b14ea140ff5c915895eefe9431888a39a84d
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
We don't support software broadcast of cache maintenance operations, so
this flush is not required (__sync_icache_dcache will always affect all
CPUs).
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 737c16dffc458e58ee7840556d43b874cb8e16a0
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
This function is only used in __sync_icache_dcache(), so remove it and
call __flush_dcache_area() directly. The flush_icache_user_range()
function is not used in the arm64 kernel.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Git-commit: ebd88367de80f9509bd30a09342d0a19c925b23e
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
The D-cache on AArch64 is VIPT non-aliasing, so there is no need to
flush it for anonymous pages.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Git-commit: 7249b79f6b4cc3c2aa9138dca52e535a4c789107
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
The flush_dcache_page() function is called when the kernel modified a
page cache page. Since the D-cache on AArch64 does not have aliases
this function can simply mark the page as dirty for later flushing via
set_pte_at()/__sync_icache_dcache() if the page is executable (to ensure
the I-D cache coherency).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Git-commit: b5b6c9e9149d8a7c3f1d7b9d0c046c6184e1dd17
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Provide EL2 with page tables and stack, and set the vectors
to point to the full blown world-switch code.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 092bd143cbb481b4ce1d55247a2987eaaf61f967
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Let userspace play with the guest registers.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 2f4a07c5f9fe4a5cdb9867e1e2fcab3165846ea7
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Provide the architecture dependent structures for VM and
vcpu abstractions.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 4f8d6632ec71372a3b8dbb4775662c2c9025d173
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Define the necessary structures to perform an MMIO access.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: d7246bf3571a82834984a42db52261525bc11159
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Add the support code for CPU specific system registers. Not much
here yet.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: b990a9d3152bddca62cc1f8bf80518430b98737b
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Provide the reset code for a virtual CPU booted in 64bit mode.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: f4672752c321ea36ce099cebdd7a082a8f327505
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Provide 64bit system register handling, modeled after the cp15
handling for ARM.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 7c8c5e6a9101ea57a1c2c9faff0917e79251a21e
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[imaund@codeaurora.org: resolved merge conflicts]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Provide the kvm.h file that defines the user space visible
interface.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 54f81d0eb93896da73d1636bca84cf90f52cabdf
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Implements helpers for dealing with the EL2 syndrome register as
well as accessing the vcpu registers.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 83a4979483c8e597b69d4403794f87fea51fa549
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Implement the injection of a fault (undefined, data abort or
prefetch abort) into a 64bit guest.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: aa8eff9bfbd531e0fcc8e68052f4ac545cd004c5
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Add the necessary infrastructure for identity-mapped HYP page
tables. Idmap-ed code must be in the ".hyp.idmap.text" linker
section.
The rest of the HYP ends up in ".hyp.text".
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 2240bbb697354f5617d95e3ee104ca61bb812507
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Define all the useful bitfields for EL2 registers.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 0369f6a34b9facd16eea4236518ca6f9cbc9e5ef
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Add HYP and S2 page flags, for both normal and device memory.
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Git-commit: 363116073a26dbc2903d8417047597eebcc05273
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
Introduce CONFIG_XEN and the implementation of hypercall.S (that is
the only ARMv8 specific code in Xen support for ARM).
Compile enlighten.c and grant_table.c from arch/arm.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Git-commit: aa42aa1389a54d1afb1c7606c5a37c3429cdf517
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
asm/xen/hypercall.h, asm/xen/hypervisor.h, asm/xen/interface.h and
asm/xen/page.h are identical so to avoid code duplication we are just
including the original arm header files here.
asm/xen/events.h is slightly different, so introduce a different file
here (use xchg to implement xchg_xen_ulong and pass regs->pstate to
raw_irqs_disabled_flags).
Also introduce asm/hypervisor.h and asm/sync_bitops.h.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Git-commit: 9f54ad6652d454b6a8e932b5307e60c9023bd974
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
The only reason uaccess routines might sleep
is if they fault. Make this explicit.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1369577426-26721-2-git-send-email-mst@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Git-commit: 56d2ef789f7c424918abdf6b95d84a64c1473220
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
QPNP-RTC driver is not enabled in arm64
defconfig for 8916 by default. This patch
enables the same.
Change-Id: Ib5dbc130f9f8d6835c4affccf8941eadc302dbf8
Signed-off-by: Mohit Aggarwal <maggarwa@codeaurora.org>
Enable random number generator driver in msm_defconfig
Change-Id: I9cb66f5bb8abf07880dbc32406169f33f9bc60e4
Signed-off-by: AnilKumar Chimata <anilc@codeaurora.org>
Enable gpio sysfs reporting and also fix an ordering issue
with irq pinctrl config.
Change-Id: If51cf3586213bd2bceb490fa46666935399ae00d
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
dma_alloc_from_contiguous takes number of pages for a size.
Align up the dma size passed in to page size to avoid truncation
and allocation failures on sizes less than PAGE_SIZE.
Change-Id: Ibe079ddef8a6a5f0a216fb2945f3e1750fd0ff69
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Enable IPC Router and QMI kernel interface drivers to support QMI
communication between application processor and other peripherals
within a System-on-Chip(SoC).
Change-Id: Ia8f4b65735acf782d5a28def7dac036e0b4d45f2
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
The types of dma_alloc_from_contiguous and dma_free_from_contiguous
have changed to work on pfns instead of struct pages. Update the
callers accordingly in arm64 dma-mapping APIs.
Change-Id: I1982d21b867586df0d7d90604bda426907e08266
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Enable MSM SPI driver and user space SPI driver on 8916.
Change-Id: Ic49933b09a51d2d4670ab232566d75becc326753
Signed-off-by: Dan Sneddon <dsneddon@codeaurora.org>
Enable the shared memory interface between apps and other processors in the
SoC.
Change-Id: Ia54fb91a0f6d867d026fc55f6293be81efa6ca11
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
Enable QPNP VADC and VADC_BTM drivers from defconfig.
This change enables dependency SPMI and QPNP-INT
drivers in defconfig.
Change-Id: I6b75df0f8e29d8f913c5205c8747fb3d2ff0a437
Signed-off-by: Dipen Parmar <dipenp@codeaurora.org>
The dma_mask for a device structure is a pointer. This pointer
needs to be set up before the dma mask can actually be set. Most
frameworks in the kernel take care of setting this up properly but
platform devices that don't follow a regular bus structure may not
ever have this set. As a result, checks such as dma_capable will
always return false on a raw platform device and dma_set_mask will
always return -EIO. Fix this by adding a dma_mask in the
platform_device archdata and setting it to be the dma_mask. Devices
used in other frameworks can change this as needed.
Change-Id: I5bfd2aa75798dfdf49d3af70fdd95dfaf2126e8c
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
An earlier patch created defines for dma_*_range APIs to be
compatible with arm 32 bit, however it appears
these API names have not (at least yet) appeared there, so
revise the names to dmac_*_range, which is defined
for arm 32 bit so that there is one name defined
for both architectures.
Change-Id: I6456c02bad73fb54a874dc9925d3d43d9b8be2f2
Signed-off-by: Larry Bassel <lbassel@codeaurora.org>
This patch adds support for using PSCI CPU_OFF calls for CPU hotplug.
With this code it is possible to hot unplug CPUs with "psci" as their
boot-method, as long as there's an appropriate cpu_off function id
specified in the psci node
Change-Id: Ia1e162dbf6d77422fa41246397edd73f5d869605
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 831ccf79b46e02f31cfd16c66df9d5600f635155
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
This patch adds the basic infrastructure necessary to support
CPU_HOTPLUG on arm64, based on the arm implementation. Actual hotplug
support will depend on an implementation's cpu_operations (e.g. PSCI).
Change-Id: I1becee67f7c7b07b5e3c086bc9ef6a498fbd0bb7
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 9327e2c6bb8cb0131b38a07847cd58c78dc095e9
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
With the advent of CPU_HOTPLUG, the enable-method property for CPU0 may
tells us something useful (i.e. how to hotplug it back on), so we must
read it along with all the enable-method for all the other CPUs. Even
on UP the enable-method may tell us useful information (e.g. if a core
has some mechanism that might be usable for cpuidle), so we should
always read it.
This patch factors out the reading of the enable method, and ensures
that CPU0's enable method is read regardless of whether the kernel is
built with SMP support.
Change-Id: I5fc881e63fc82c0c6a2353d09491e99f8c49087e
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: e8765b265a69c83504afc6901d6e137b1811d1f0
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
The arm64 kernel has an internal holding pen, which is necessary for
some systems where we can't bring CPUs online individually and must hold
multiple CPUs in a safe area until the kernel is able to handle them.
The current SMP infrastructure for arm64 is closely coupled to this
holding pen, and alternative boot methods must launch CPUs into the pen,
where they sit before they are launched into the kernel proper.
With PSCI (and possibly other future boot methods), we can bring CPUs
online individually, and need not perform the secondary_holding_pen
dance. Instead, this patch factors the holding pen management code out
to the spin-table boot method code, as it is the only boot method
requiring the pen.
A new entry point for secondaries, secondary_entry is added for other
boot methods to use, which bypasses the holding pen and its associated
overhead when bringing CPUs online. The smp.pen.text section is also
removed, as the pen can live in head.text without problem.
The cpu_operations structure is extended with two new functions,
cpu_boot and cpu_postboot, for bringing a cpu into the kernel and
performing any post-boot cleanup required by a bootmethod (e.g.
resetting the secondary_holding_pen_release to INVALID_HWID).
Documentation is added for cpu_operations.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 652af899799354049b273af897b798b8f03fdd88
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
[abhimany@codeaurora.org: resolve trivial merge conflicts]
Change-Id: I99335a5e5bad36b79bdb50402767fda5f395a1ae
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
For hotplug support, we're going to want a place to store operations
that do more than bring CPUs online, and it makes sense to group these
with our current smp_enable_ops. For cpuidle support, we'll want to
group additional functions, and we may want them even for UP kernels.
This patch renames smp_enable_ops to the more general cpu_operations,
and pulls the definitions out of smp code such that they can be used in
UP kernels. While we're at it, fix up instances of the cpu parameter to
be an unsigned int, drop the init markings and rename the *_cpu
functions to cpu_* to reduce future churn when cpu_operations is
extended.
Change-Id: I950eea148a358ae336b85f6e3eb4c7946bf2f71a
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: cd1aebf5277a3a154a9e4c0ea4b3acabb62e5cab
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
The functions in psci.c are only used from smp_psci.c, and smp_psci
cannot function without psci.c. Additionally psci.c is built when !SMP,
where it's expected that cpu_suspend may be useful.
This patch unifies the two files, removing pointless duplication and
paving the way for PSCI support in UP systems.
Change-Id: Ib42091d42703a1a2ca6d0f55ebe4b4ee0d233adc
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Git-commit: 00ef54bb97389bfe8894272f48496f4191aae946
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
