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Add new clockevent driver that uses the counter present on the MIPS
Global Interrupt Controller.
Signed-off-by: Raghu Gandham <Raghu.Gandham@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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Various whitespace and #ifdef removals for GIC and R4K clocksources.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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Reorganize some of the GIC clocksource driver code. Below is a list of
the various changes.
* No longer select CSRC_GIC by default for Malta platform.
* Limit choice for either the GIC or R4K clocksource, not both.
* Change location in Makefile.
* Created new 'gic_read_count' function in common 'irq-gic.c' file.
* Change 'git_hpt_read' function in 'csrc-gic.c' to use new function.
* Surround GIC specific code in Malta platform code with #ifdef's.
* Only initialize the GIC clocksource if it was selected. Original
code called it unconditionally if a GIC was found.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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Move the global variable 'gic_frequency' to be defined in the file
'arch/mips/kernel/irq-gic.c' instead of defining it individually
for each platform making use of the GIC. Also change the type to
be an unsigned integer instead of signed.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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Move the global variable 'gic_present' to be defined in the file
'arch/mips/kernel/irq-gic.c' instead of defining it individually
for each platform making use of the GIC. Also change the type to
be an unsigned integer instead of signed.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next
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Add new clocksource that uses the counter present on the MIPS
Global Interrupt Controller.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Patchwork: http://patchwork.linux-mips.org/patch/4681/
Signed-off-by: John Crispin <blogic@openwrt.org>
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Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Fix whitespace, beautify the code and remove debug statements.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
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The GIC interrupt code is used by multiple platforms and the
current code was half Malta dependent code. These changes
abstract away the platform specific differences.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
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This change adds macros for routing of GIC interrupts for EIC and
non-EIC hardware modes. Also added Malta GIC macros having to do
with performance and timer interrupts.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3576/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This prevents the GIC code from being reusable sanely.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit fc03bc1715ca0ad4ccfe97aab16bcc9e7129c1a4 breaks compiling MIPS
with SMP disabled. This patch fixes that.
Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Most of the CMP support was added before, this mostly correct compile
problems but adds a platform specific translation for the interrupt number
based on cpu number.
Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This patch extends the GIC interrupt handling beyond the current 32 bit
range as well as extending the number of interrupts based on the number
of CPUs.
Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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