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e5c86679d5
linux/arch/xtensa/kernel
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Max Filippov e5c86679d5 xtensa: don't use linux IRQ #0 
Linux IRQ #0 is reserved for error reporting and may not be used.
Increase NR_IRQS for one additional slot and increase
irq_domain_add_legacy parameter first_irq value to 1, so that linux
IRQ #0 is not associated with hardware IRQ #0 in legacy IRQ domains.
Introduce macro XTENSA_PIC_LINUX_IRQ for static translation of xtensa
PIC hardware IRQ # to linux IRQ #. Use this macro in XTFPGA platform
data definitions.

This fixes inability to use hardware IRQ #0 in configurations that don't
use device tree and allows for non-identity mapping between linux IRQ #
and hardware IRQ #.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2017-06-05 16:53:10 -07:00
..
.gitignore xtensa: tell git to ignore generated files 2013-06-05 10:14:19 -07:00
align.S xtensa: allow single-stepping through unaligned load/store 2014-08-14 11:59:30 +04:00
asm-offsets.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
coprocessor.S xtensa: split uaccess.h into C and asm sides 2016-09-27 21:15:21 -04:00
entry.S Merge branch 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-11 23:38:39 -07:00
head.S xtensa: cleanup MMU setup and kernel layout macros 2016-07-24 06:33:58 +03:00
hw_breakpoint.c xtensa: support hardware breakpoints/watchpoints 2016-03-11 08:53:32 +00:00
irq.c xtensa: don't use linux IRQ #0 2017-06-05 16:53:10 -07:00
Makefile xtensa: move S32C1I self-test to a separate file 2016-11-16 15:08:28 -08:00
mcount.S xtensa: add static function tracer support 2013-07-08 01:18:57 -07:00
module.c xtensa: clean up files to make them code-style compliant 2012-12-18 21:10:25 -08:00
mxhead.S xtensa: drop unused sections and remapped reset handlers 2015-11-03 17:19:39 +03:00
pci-dma.c This is a tree wide change and has been kept separate for that reason. 2017-02-25 13:45:43 -08:00
pci.c PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code" 2015-09-15 13:18:04 -05:00
perf_event.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
platform.c xtensa: cleanup ccount frequency tracking 2013-07-08 01:11:37 -07:00
process.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
ptrace.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
s32c1i_selftest.c xtensa: move S32C1I self-test to a separate file 2016-11-16 15:08:28 -08:00
setup.c xtensa: Use seq_puts() in c_show() 2017-05-08 13:16:22 -07:00
signal.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
smp.c sched/headers: Move task->mm handling methods to <linux/sched/mm.h> 2017-03-03 01:43:28 +01:00
stacktrace.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
syscall.c sched/headers: Prepare for new header dependencies before moving more code to <linux/sched/mm.h> 2017-03-02 08:42:30 +01:00
time.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
traps.c xtensa: fix stack dump output 2017-03-31 15:58:40 -07:00
vectors.S xtensa: use context structure for debug exceptions 2016-03-11 08:53:32 +00:00
vmlinux.lds.S xtensa: reduce double exception literal reservation 2017-06-05 11:52:07 -07:00
xtensa_ksyms.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00