On systems with a large number request slots and unavailable MCQ,
the current design of the interrupt handler can delay handling of
other subsystems interrupts causing display artifacts, GPU stalls
or system firmware requests timeouts.

Since the interrupt routine can take quite some time, it's
preferable to move it to a threaded handler and leave the
hard interrupt handler save the status and disable the irq
until processing is finished in the thread.

When MCQ & Interrupt Aggregation are supported, the interrupt
are directly handled in the "hard" interrupt routine to
keep IOPs high since queues handling is done in separate
per-queue interrupt routines.

This fixes all encountered issued when running FIO tests
on the Qualcomm SM8650 platform.

Example of errors reported on a loaded system:
 [drm:dpu_encoder_frame_done_timeout:2706] [dpu error]enc32 frame done timeout
 msm_dpu ae01000.display-controller: [drm:hangcheck_handler [msm]] *ERROR* 67.5.20.1: hangcheck detected gpu lockup rb 2!
 msm_dpu ae01000.display-controller: [drm:hangcheck_handler [msm]] *ERROR* 67.5.20.1:     completed fence: 74285
 msm_dpu ae01000.display-controller: [drm:hangcheck_handler [msm]] *ERROR* 67.5.20.1:     submitted fence: 74286
 Error sending AMC RPMH requests (-110)

Reported bandwidth is not affected on various tests.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Drop last_intr_status & last_intr_ts drop the ufs_stats struct,
and the associated debug code.

Suggested-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

# Conflicts:
#	include/linux/mm.h
#	kernel/sysctl.c
#	mm/filemap.c

fix up for "rust: init: fix `Zeroable` implementation for `Option<NonNull<T>>` and `Option<KBox<T>>`"

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

# Conflicts:
#	drivers/gpu/drm/drm_panic_qr.rs
#	rust/Makefile
#	rust/kernel/init.rs
#	rust/kernel/sync/condvar.rs
#	rust/kernel/sync/lock.rs
#	rust/pin-init/src/macros.rs
#	scripts/generate_rust_analyzer.py

# Conflicts:
#	kernel/rcu/tiny.c

# Conflicts:
#	tools/testing/cxl/test/mem.c

Merge branch 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git

# Conflicts:
#	lib/Makefile

# Conflicts:
#	arch/arm64/boot/dts/rockchip/rk3576.dtsi
#	drivers/scsi/scsi_debug.c