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author | Alex Smith <alex.smith@imgtec.com> | 2015-10-12 10:40:43 +0100 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2015-11-11 08:36:38 +0100 |
commit | c0a9f72c156baf1e88c33c6ba4450647af1b8804 (patch) | |
tree | 85854bd0a78de437f78a1415b56097fa1c5b1f8c /arch/mips/kernel | |
parent | ebb5e78cc63417a35254a791de66e1cc84f963cc (diff) | |
download | op-kernel-dev-c0a9f72c156baf1e88c33c6ba4450647af1b8804.zip op-kernel-dev-c0a9f72c156baf1e88c33c6ba4450647af1b8804.tar.gz |
irqchip: irq-mips-gic: Provide function to map GIC user section
The GIC provides a "user-mode visible" section containing a mirror of
the counter registers which can be mapped into user memory. This will
be used by the VDSO time function implementations, so provide a
function to map it in.
When the GIC is not enabled in Kconfig a dummy inline version of this
function is provided, along with "#define gic_present 0", so that we
don't have to litter the VDSO code with ifdefs.
[markos.chandras@imgtec.com:
- Move mapping code to arch/mips/kernel/vdso.c and use a resource
type to get the GIC usermode information
- Avoid renaming function arguments and use __gic_base_addr to hold
the base GIC address prior to ioremap.]
[ralf@linux-mips.org: Fix up gic_get_usm_range() to compile and make inline
again.]
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/11281/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel')
0 files changed, 0 insertions, 0 deletions