Simplify i80321_intr_calculate_masks().

G/C unused members of struct intrq.

No functional changes intended.

malloc(9) -> kmem(9)

branches: 1.25.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

branches: 1.24.40;
Remove irqframe and replace with identical trapframe.

Change old-stlye-defintions to C89 prototypes.
Switch to CFATTACH_DECL_NEW/device_t/cfdata_t
Defer attaching interrupt evcnts.

Approved by releng.

branches: 1.22.2; 1.22.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits. Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.

Apply fixes for PR port-arm/43339:
Set proper IPL_SOFTfoo values even in !FAST_SOFTINTS case.
Some assertions in MI code expect they have unique values,
per comments from rmind@.

Also cleanup various "interrupt hierarchy" code since IPL_NONE and
IPL_SOFTfoo should not be set by any hardware interrupt establish functions.

Ok'ed by mrg@, tested on shark and hpcarm.

branches: 1.19.4; 1.19.6;
Ifdef out and comment a KASSERT() that's a bit too aggressive. There
are never any interrupts masked at IPL_VM before any interrupts have
been registered.

branches: 1.18.8; 1.18.10;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.17.6; 1.17.8; 1.17.10;
Cleanup softint lossage.

And you, be ye fruitful, and multiply; bring forth abundantly in the earth,
and multiply therein. (Genesis 9:6-8)

branches: 1.15.2; 1.15.4; 1.15.6;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.14.8; 1.14.24; 1.14.26; 1.14.28; 1.14.30; 1.14.36;
s/heirarchy/hierarchy/, from Zafer.

If I80321_HPI_ENABLED is defined, add support for handling interrupts from
devices hooked up to the HPI pin.

HPIs cannot be masked at the interrupt controller; they can only be masked
by disabling IRQs in the XScale core. To deal with this, we tweak the
interrupt frame so that IRQs are disabled when the interrupt dispatcher
returns due to a masked HPI interrupt. IRQs will be re-enabled by a
subsequent splx(9).

Fortunately the only instance where HPI is used is for the console UART
on a couple of boards, so this hack does not adversely affect performance.

Contributed by Wasabi Systems.

branches: 1.12.8; 1.12.10;
remove 'inline' from the xxx_do_pending() function that is called from
external sources, and conflicts with it's prototype.

branches: 1.11.4; 1.11.6; 1.11.8; 1.11.12;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.9.16;
As per the recent ixp425 fix (which is based on this code):

In the interrupt dispatch loop, make sure to handle any pending interrupts
which came in while we were dealing with the first interrupt(s), and which
are enabled at the current spl.

This fixes a problem where the intr_enabled/hw mask is not updated to
allow pending interrupts through until the next splx(). In some case,
interrupts could be delayed until the next clock tick.

__KERNEL_RCSID()

branches: 1.7.2;
Rename IPL_IMP -> IPL_VM.

Clean up some bad interaction between the spl inlining stuff and
strict-prototypes.

Add a new option EVBARM_BOARDTYPE to differentiate between different
evbarm ports. Inline _splraise/_spllower/splx for i80321 and iq80310
for more performance.

Don't need to frob CPSR in _splraise().

Use more descriptive interrupt names.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Fix soft interrupts.

Basic support for the Intel i80321 I/O Processor (Xscale core).

Note: This is a snapshot of work-in-progress; there are still some
bugs to be shaken out.

malloc(9) -> kmem(9)

in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

branches: 1.24.40;
Remove irqframe and replace with identical trapframe.

Change old-stlye-defintions to C89 prototypes.
Switch to CFATTACH_DECL_NEW/device_t/cfdata_t
Defer attaching interrupt evcnts.

Approved by releng.

branches: 1.22.2; 1.22.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits. Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.

Apply fixes for PR port-arm/43339:
Set proper IPL_SOFTfoo values even in !FAST_SOFTINTS case.
Some assertions in MI code expect they have unique values,
per comments from rmind@.

Also cleanup various "interrupt hierarchy" code since IPL_NONE and
IPL_SOFTfoo should not be set by any hardware interrupt establish functions.

Ok'ed by mrg@, tested on shark and hpcarm.

branches: 1.19.4; 1.19.6;
Ifdef out and comment a KASSERT() that's a bit too aggressive. There
are never any interrupts masked at IPL_VM before any interrupts have
been registered.

branches: 1.18.8; 1.18.10;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.17.6; 1.17.8; 1.17.10;
Cleanup softint lossage.

And you, be ye fruitful, and multiply; bring forth abundantly in the earth,
and multiply therein. (Genesis 9:6-8)

branches: 1.15.2; 1.15.4; 1.15.6;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.14.8; 1.14.24; 1.14.26; 1.14.28; 1.14.30; 1.14.36;
s/heirarchy/hierarchy/, from Zafer.

If I80321_HPI_ENABLED is defined, add support for handling interrupts from
devices hooked up to the HPI pin.

HPIs cannot be masked at the interrupt controller; they can only be masked
by disabling IRQs in the XScale core. To deal with this, we tweak the
interrupt frame so that IRQs are disabled when the interrupt dispatcher
returns due to a masked HPI interrupt. IRQs will be re-enabled by a
subsequent splx(9).

Fortunately the only instance where HPI is used is for the console UART
on a couple of boards, so this hack does not adversely affect performance.

Contributed by Wasabi Systems.

branches: 1.12.8; 1.12.10;
remove 'inline' from the xxx_do_pending() function that is called from
external sources, and conflicts with it's prototype.

branches: 1.11.4; 1.11.6; 1.11.8; 1.11.12;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.9.16;
As per the recent ixp425 fix (which is based on this code):

In the interrupt dispatch loop, make sure to handle any pending interrupts
which came in while we were dealing with the first interrupt(s), and which
are enabled at the current spl.

This fixes a problem where the intr_enabled/hw mask is not updated to
allow pending interrupts through until the next splx(). In some case,
interrupts could be delayed until the next clock tick.

__KERNEL_RCSID()

branches: 1.7.2;
Rename IPL_IMP -> IPL_VM.

Clean up some bad interaction between the spl inlining stuff and
strict-prototypes.

Add a new option EVBARM_BOARDTYPE to differentiate between different
evbarm ports. Inline _splraise/_spllower/splx for i80321 and iq80310
for more performance.

Don't need to frob CPSR in _splraise().

Use more descriptive interrupt names.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Fix soft interrupts.

Basic support for the Intel i80321 I/O Processor (Xscale core).

Note: This is a snapshot of work-in-progress; there are still some
bugs to be shaken out.

in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

Remove irqframe and replace with identical trapframe.

Change old-stlye-defintions to C89 prototypes.
Switch to CFATTACH_DECL_NEW/device_t/cfdata_t
Defer attaching interrupt evcnts.

Approved by releng.

branches: 1.22.2; 1.22.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits. Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.

Apply fixes for PR port-arm/43339:
Set proper IPL_SOFTfoo values even in !FAST_SOFTINTS case.
Some assertions in MI code expect they have unique values,
per comments from rmind@.

Also cleanup various "interrupt hierarchy" code since IPL_NONE and
IPL_SOFTfoo should not be set by any hardware interrupt establish functions.

Ok'ed by mrg@, tested on shark and hpcarm.

branches: 1.19.4; 1.19.6;
Ifdef out and comment a KASSERT() that's a bit too aggressive. There
are never any interrupts masked at IPL_VM before any interrupts have
been registered.

branches: 1.18.8; 1.18.10;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.17.6; 1.17.8; 1.17.10;
Cleanup softint lossage.

And you, be ye fruitful, and multiply; bring forth abundantly in the earth,
and multiply therein. (Genesis 9:6-8)

branches: 1.15.2; 1.15.4; 1.15.6;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.14.8; 1.14.24; 1.14.26; 1.14.28; 1.14.30; 1.14.36;
s/heirarchy/hierarchy/, from Zafer.

If I80321_HPI_ENABLED is defined, add support for handling interrupts from
devices hooked up to the HPI pin.

HPIs cannot be masked at the interrupt controller; they can only be masked
by disabling IRQs in the XScale core. To deal with this, we tweak the
interrupt frame so that IRQs are disabled when the interrupt dispatcher
returns due to a masked HPI interrupt. IRQs will be re-enabled by a
subsequent splx(9).

Fortunately the only instance where HPI is used is for the console UART
on a couple of boards, so this hack does not adversely affect performance.

Contributed by Wasabi Systems.

branches: 1.12.8; 1.12.10;
remove 'inline' from the xxx_do_pending() function that is called from
external sources, and conflicts with it's prototype.

branches: 1.11.4; 1.11.6; 1.11.8; 1.11.12;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.9.16;
As per the recent ixp425 fix (which is based on this code):

In the interrupt dispatch loop, make sure to handle any pending interrupts
which came in while we were dealing with the first interrupt(s), and which
are enabled at the current spl.

This fixes a problem where the intr_enabled/hw mask is not updated to
allow pending interrupts through until the next splx(). In some case,
interrupts could be delayed until the next clock tick.

__KERNEL_RCSID()

branches: 1.7.2;
Rename IPL_IMP -> IPL_VM.

Clean up some bad interaction between the spl inlining stuff and
strict-prototypes.

Add a new option EVBARM_BOARDTYPE to differentiate between different
evbarm ports. Inline _splraise/_spllower/splx for i80321 and iq80310
for more performance.

Don't need to frob CPSR in _splraise().

Use more descriptive interrupt names.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Fix soft interrupts.

Basic support for the Intel i80321 I/O Processor (Xscale core).

Note: This is a snapshot of work-in-progress; there are still some
bugs to be shaken out.