06 Dec, 2011
5 commits
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The CPU reset functions disable the MMU and therefore must be executed
with an identity mapping in place.This patch places the CPU reset functions into the .idmap.text section,
causing the idmap code to include them as part of the identity mapping.Acked-by: Dave Martin
Signed-off-by: Will Deacon -
The ARM CPU suspend code requires cpu_resume_mmu to be identity mapped
in order to re-enable the MMU when coming out of suspend. Currently,
this is accomplished by maintaining a suspend_pgd with the relevant
mapping put in place at init time.This patch replaces the use of suspend_pgd with the new idmap_pgd.
cpu_resume_mmu is placed in the .idmap.text section so that it is
included in the identity map.Reviewed-by: Catalin Marinas
Acked-by: Dave Martin
Tested-by: Lorenzo Pieralisi
Signed-off-by: Will Deacon -
When disabling and re-enabling the MMU, it is necessary to take out an
identity mapping for the code that manipulates the SCTLR in order to
avoid it disappearing from under our feet. This is useful when soft
rebooting and returning from CPU suspend.This patch allocates a set of page tables during boot and populates them
with an identity mapping for the .idmap.text section. This means that
users of the identity map do not need to manage their own pgd and can
instead annotate their functions with __idmap or, in the case of assembly
code, place them in the correct section.Acked-by: Dave Martin
Reviewed-by: Catalin Marinas
Tested-by: Lorenzo Pieralisi
Signed-off-by: Will Deacon -
Fix the below build break by including common.h
arch/arm/mach-omap2/cpuidle34xx.c: In function 'omap3_enter_idle':
arch/arm/mach-omap2/cpuidle34xx.c:117: error: implicit declaration of function 'omap_irq_pending'
make[1]: *** [arch/arm/mach-omap2/cpuidle34xx.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2Signed-off-by: Santosh Shilimkar
Signed-off-by: Russell King -
Fix the build break by adding the necessary irq functions to
common header.Signed-off-by: Santosh Shilimkar
Signed-off-by: Russell King
03 Dec, 2011
1 commit
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…l/git/maz/arm-platforms into devel-stable
02 Dec, 2011
2 commits
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Trivial fix to fix below build error:
CC arch/arm/mach-exynos/mach-universal_c210.o
arch/arm/mach-exynos/mach-universal_c210.c:24: error: expected identifier or '(' before '
Signed-off-by: Marc Zyngier -
Fix below build error:
CC arch/arm/mach-exynos/cpu.o
arch/arm/mach-exynos/cpu.c: In function 'exynos4_init_irq':
arch/arm/mach-exynos/cpu.c:245: error: 'gic_bank_offset' undeclared (first use in this function)
arch/arm/mach-exynos/cpu.c:245: error: (Each undeclared identifier is reported only once
arch/arm/mach-exynos/cpu.c:245: error: for each function it appears in.)
arch/arm/mach-exynos/cpu.c:243: warning: unused variable 'bank_offset'
make[1]: *** [arch/arm/mach-exynos/cpu.o] Error 1
make: *** [arch/arm/mach-exynos] Error 2Signed-off-by: Axel Lin
Signed-off-by: Marc Zyngier
22 Nov, 2011
1 commit
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…l/git/maz/arm-platforms into devel-stable
Conflicts:
arch/arm/mach-omap2/board-4430sdp.c
arch/arm/mach-omap2/board-omap4panda.c
arch/arm/mach-omap2/include/mach/omap4-common.h
arch/arm/plat-omap/include/plat/irqs.hThe changes to omap4-common.h were moved to arch/arm/mach-omap2/common.h
and the other trivial conflicts resolved. The now empty ifdef in irqs.h
was also eliminated.
21 Nov, 2011
4 commits
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The poodle restart handler was added in 74617fb6b8 (3593/1: Add reboot
and shutdown handlers for Zaurus handhelds), and at that time it was
necessary to deal with the RCSR register. This commit also forced all
restarts to use the 'hard' restart method.In dc38e2ad53 (pxa: Fix RCSR handling), the RCSR handling was removed,
leaving just the forcing to use a 'hard' restart. As hard restarts are
the default (in the absense of a reboot= command line argument), this
seems pointless. In any case, Richard Purdie says:> From what I remember that hardware either always reboots or always
> halts. I think the option was therefore left hardcoded to make it clear
> it wasn't expected to work. Later Zaurii models could do either but
> required some manual poking of registers to make it happen iirc.
>
> Regardless, you can probably clean this up as you suggest now.So, lets remove the unnecessary interception and rely on the default
restart mode.Acked-by: Richard Purdie
Signed-off-by: Russell King -
Rather than having separate extern declarations in nuc9*.h, provide
a common header file containing these definitions.Tested-by: Wan Zongshun
Signed-off-by: Russell King -
We only need to set the system up for a soft-restart if we're going to
be doing a soft-restart. Provide a new function (soft_restart()) which
does the setup and final call for this, and make platforms use it.
Eliminate the call to setup_restart() from the default handler.This means that platforms arch_reset() function is no longer called with
the page tables prepared for a soft-restart, and caches will still be
enabled.Acked-by: Nicolas Pitre
Acked-by: Will Deacon
Acked-by: H Hartley Sweeten
Acked-by: Kukjin Kim
Acked-by: Sascha Hauer
Acked-by: Viresh Kumar
Acked-by: Krzysztof Ha■asa
Acked-by: Paul Mundt
Acked-by: Richard Purdie
Acked-by: Wan ZongShun
Acked-by: Eric Miao
Signed-off-by: Russell King
18 Nov, 2011
3 commits
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The separate files for clps711x which contain maybe one or two data
structures or functions is an inefficient use of files, and encourages
further small files as other changes happen. Collapse down these into
a single core.c file.Signed-off-by: Russell King
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As suggested by Russell King - ARM Linux ,
there's no need to keep local prototypes in non-local headers.Add mach-omap1/common.h and mach-omap2/common.h and move the
local prototypes there from plat/common.h and mach/omap4-common.h.Signed-off-by: Tony Lindgren
Signed-off-by: Russell King -
IRQs are already disabled by the time arch_reset() is called, so these
calls to local_irq_disable() instead arch_reset() are redundant. Remove
them.Acked-by: H Hartley Sweeten
Acked-by: Nicolas Pitre
Acked-by: Will Deacon
Signed-off-by: Russell King
16 Nov, 2011
24 commits
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Now that all platforms are converted to MULTI_IRQ_HANDLER, remove the
legacy support.Tested-by: Thomas Abraham
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for picoxcell to help building multi platform kernels.Signed-off-by: Jamie Iles
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Now that there is a generic IRQ handler for multiple VIC devices use it
for samsung to help building multi platform kernels.Cc: Kukjin Kim
Tested-by: Thomas Abraham
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for versatile to help building multi platform kernels.Cc: Russell King
Tested-by: Marc Zyngier
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for u300 to help building multi platform kernels.Acked-by: Linus Walleij
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for spear to help building multi platform kernels.Acked-by: Viresh Kumar
Cc: Rajeev Kumar
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for s3c64xx to help building multi platform kernels.Cc: Ben Dooks
Tested-by: Thomas Abraham
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for nomadik to help building multi platform kernels.Cc: Alessandro Rubini
Acked-by: Linus Walleij
Cc: STEricsson
Tested-by: Thomas Abraham
Signed-off-by: Jamie Iles -
Now that there is a generic IRQ handler for multiple VIC devices use it
for netx to help building multi platform kernels.Signed-off-by: Jamie Iles
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Now that there is a generic IRQ handler for multiple VIC devices use it
for ep93xx to help building multi platform kernels.Cc: Hartley Sweeten
Cc: Ryan Mallon
Signed-off-by: Jamie Iles -
Add a handler for the VIC that is suitable for MULTI_IRQ_HANDLER
platforms. This can replace the ASM entry macros for platforms that use
the VIC.v4: - rebase ontop of move __exception and friends to
asm/exception.h
- rework polling loop to handle as many irqs as possible in one go
v3: - simplify irq handling loop as suggested by Grant
- service interrupts from msb->lsb order
v2: - allow the handler be used for !CONFIG_OF
- use irq_domain_to_irq()Cc: Rob Herring
Acked-by: Grant Likely
Acked-by: Linus Walleij
Tested-by: Thomas Abraham
Signed-off-by: Jamie Iles -
This adds a device tree binding for the VIC based on the of_irq_init()
support. This adds an irqdomain to the vic and always registers all
vics in the static vic array rather than for pm only to keep track of
the irq domain. struct irq_data::hwirq is used where appropriate rather
than runtime masking.v3: - include linux/export.h for THIS_MODULE
v2: - use irq_domain_simple_ops
- remove stub implementation of vic_of_init for !CONFIG_OF
- Make VIC select IRQ_DOMAINReviewed-by: Rob Herring
Reviewed-by: Grant Likely
Tested-by: Thomas Abraham
Signed-off-by: Jamie Iles -
Now that MULTI_IRQ_HANDLER is selected by all the in-tree
GIC users, make it mandatory and remove the unused macros.Signed-off-by: Marc Zyngier
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After the MULTI_IRQ_HANDLER conversion, a couple of global
variables can be removed.Signed-off-by: Marc Zyngier
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Convert the omap2plus platforms to be using CONFIG_MULTI_IRQ_HANDLER.
Each machine is modified to provide either omap2_intc_handle_irq(),
omap3_intc_handle_irq() or gic_handle_irq().This allows for a major cleanup, removing the MULTI_OMAP setup
from the interrupt path.Tested on both Panda and IGEPv2 (single kernel image)
Tested-by: Tony Lindgren
Signed-off-by: Marc Zyngier -
Provide the OMAP2/3 IRQ code with low level handlers that can be used
by platforms using CONFIG_MULTI_IRQ_HANDLER. Though the handlers are
written in C, the compiled code looks very similar to its assembly
counterpart (at least with my gcc 4.4.1).Tested-by: Tony Lindgren
Signed-off-by: Marc Zyngier -
Convert the zynq platform to be using the gic_handle_irq
function as its primary interrupt handler.Acked-by: John Linn
Signed-off-by: Marc Zyngier -
Convert the cns3xxx platform to be using the gic_handle_irq
function as its primary interrupt handler.Acked-by: Anton Vorontsov
Signed-off-by: Marc Zyngier -
Convert the SMP shmobile platforms to use gic_handle_irq() instead
of the assembly macro.Cc: Paul Mundt
Signed-off-by: Marc Zyngier -
Convert the ux500 platforms to be using the gic_handle_irq
function as their primary interrupt handler.Acked-by: Linus Walleij
Signed-off-by: Marc Zyngier -
Convert the tegra2 platforms to be using the gic_handle_irq
function as their primary interrupt handler.Tested on harmony.
Cc: Colin Cross
Acked-by: Stephen Warren
Acked-by: Olof Johansson
Signed-off-by: Marc Zyngier -
Convert the Exynos4 platforms to be using the gic_handle_irq
function as their primary interrupt handler.Cc: Ben Dooks
Cc: Kukjin Kim
Signed-off-by: Marc Zyngier -
Convert the SMP msm platforms to be using the gic_handle_irq
function as their primary interrupt handler.Tested-by: David Brown
Acked-by: David Brown
Signed-off-by: Marc Zyngier -
Convert the VExpress platform to be using the gic_handle_irq
function as its primary interrupt handler.Signed-off-by: Marc Zyngier
