Pull powerpc updates from Michael Ellerman:

 - Add powerpc qspinlock implementation optimised for large system
   scalability and paravirt. See the merge message for more details

 - Enable objtool to be built on powerpc to generate mcount locations

 - Use a temporary mm for code patching with the Radix MMU, so the
   writable mapping is restricted to the patching CPU

 - Add an option to build the 64-bit big-endian kernel with the ELFv2
   ABI

 - Sanitise user registers on interrupt entry on 64-bit Book3S

 - Many other small features and fixes

Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn
Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET,
Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang,
Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A.
R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol
Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan
Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin,
Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika
Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng,
XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu,
and Wolfram Sang.

* tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits)
  powerpc/code-patching: Fix oops with DEBUG_VM enabled
  powerpc/qspinlock: Fix 32-bit build
  powerpc/prom: Fix 32-bit build
  powerpc/rtas: mandate RTAS syscall filtering
  powerpc/rtas: define pr_fmt and convert printk call sites
  powerpc/rtas: clean up includes
  powerpc/rtas: clean up rtas_error_log_max initialization
  powerpc/pseries/eeh: use correct API for error log size
  powerpc/rtas: avoid scheduling in rtas_os_term()
  powerpc/rtas: avoid device tree lookups in rtas_os_term()
  powerpc/rtasd: use correct OF API for event scan rate
  powerpc/rtas: document rtas_call()
  powerpc/pseries: unregister VPA when hot unplugging a CPU
  powerpc/pseries: reset the RCU watchdogs after a LPM
  powerpc: Take in account addition CPU node when building kexec FDT
  powerpc: export the CPU node count
  powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state
  powerpc/dts/fsl: Fix pca954x i2c-mux node names
  cxl: Remove unnecessary cxl_pci_window_alignment()
  selftests/powerpc: Fix resource leaks
  ...

During the comparative study of cpuidle governors, it is noticed that the
menu governor does not select CEDE state in some scenarios even though when
the sleep duration of the CPU exceeds the target residency of the CEDE idle
state this is because the CPU exits the snooze "polling" state when snooze
time limit is reached in the snooze_loop(), which is not a real wake up
and it just means that the polling state selection was not adequate.

cpuidle governors rely on CPUIDLE_FLAG_POLLING flag to be set for the
polling states to handle the condition mentioned above.

Hence, set the CPUIDLE_FLAG_POLLING flag for snooze state (polling state)
in powerpc arch to make the cpuidle governor work as expected.

Reference Commits:

- Timeout enabled for snooze state:
  commit 78eaa10f027c
  ("cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state")

- commit dc2251bf98c6
  ("cpuidle: Eliminate the CPUIDLE_DRIVER_STATE_START symbol")

- Fix wakeup stats in governor for polling states
  commit 5f26bdceb9c0
  ("cpuidle: menu: Fix wakeup statistics updates for polling state")

Signed-off-by: Aboorva Devarajan <aboorvad@linux.vnet.ibm.com>
Tested-by: Vishal Chourasia <vishalc@linux.vnet.ibm.com>
Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.ibm.com>
Reviewed-by: Vishal Chourasia <vishalc@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221114145611.37669-1-aboorvad@linux.vnet.ibm.com

The drv->state_count is assigned the total number of available states, so
let's make that clear.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

While we correctly skips to initialize an idle state from a disabled idle
state node in DT, the returned value from dt_init_idle_driver() don't get
adjusted accordingly. Instead the number of found idle state nodes are
returned, while the callers are expecting the number of successfully
initialized idle states from DT.

This leads to cpuidle drivers unnecessarily continues to initialize their
idle state specific data. Moreover, in the case when all idle states have
been disabled in DT, we would end up registering a cpuidle driver, rather
than relying on the default arch specific idle call.

Fixes: 9f14da345599 ("drivers: cpuidle: implement DT based idle states infrastructure")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

It's useful to understand whether we are using OS-initiated (OSI) mode or
Platform Coordinated (PC) mode, when initializing the CPU PM domains.
Therefore, let's extend the print in the log after a successful probe with
this information.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Pull RISC-V updates from Palmer Dabbelt:

 - Improvements to the CPU topology subsystem, which fix some issues
   where RISC-V would report bad topology information.

 - The default NR_CPUS has increased to XLEN, and the maximum
   configurable value is 512.

 - The CD-ROM filesystems have been enabled in the defconfig.

 - Support for THP_SWAP has been added for rv64 systems.

There are also a handful of cleanups and fixes throughout the tree.

* tag 'riscv-for-linus-6.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: enable THP_SWAP for RV64
  RISC-V: Print SSTC in canonical order
  riscv: compat: s/failed/unsupported if compat mode isn't supported
  RISC-V: Increase range and default value of NR_CPUS
  cpuidle: riscv-sbi: Fix CPU_PM_CPU_IDLE_ENTER_xyz() macro usage
  perf: RISC-V: throttle perf events
  perf: RISC-V: exclude invalid pmu counters from SBI calls
  riscv: enable CD-ROM file systems in defconfig
  riscv: topology: fix default topology reporting
  arm64: topology: move store_cpu_topology() to shared code

Pull ARM driver updates from Arnd Bergmann:
 "The drivers branch for 6.1 is a bit larger than for most releases.

  Most of the changes come from SoC maintainers for the drivers/soc
  subsystem:

   - A new driver for error handling on the NVIDIA Tegra 'control
     backbone' bus.

   - A new driver for Qualcomm LLCC/DDR bandwidth measurement

   - New Rockchip rv1126 and rk3588 power domain drivers

   - DT binding updates for memory controllers, older Rockchip SoCs,
     various Mediatek devices, Qualcomm SCM firmware

   - Minor updates to Hisilicon LPC bus, the Allwinner SRAM driver, the
     Apple rtkit firmware driver, Tegra firmware

   - Minor updates for SoC drivers (Samsung, Mediatek, Renesas, Tegra,
     Qualcomm, Broadcom, NXP, ...)

  There are also some separate subsystem with downstream maintainers
  that merge updates this way:

   - Various updates and new drivers in the memory controller subsystem
     for Mediatek and Broadcom SoCs

   - Small set of changes in preparation to add support for FF-A v1.1
     specification later, in the Arm FF-A firmware subsystem

   - debugfs support in the PSCI firmware subsystem"

* tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (149 commits)
  ARM: remove check for CONFIG_DEBUG_LL_SER3
  firmware/psci: Add debugfs support to ease debugging
  firmware/psci: Print a warning if PSCI doesn't accept PC mode
  dt-bindings: memory: snps,dw-umctl2-ddrc: Extend schema with IRQs/resets/clocks props
  dt-bindings: memory: snps,dw-umctl2-ddrc: Replace opencoded numbers with macros
  dt-bindings: memory: snps,dw-umctl2-ddrc: Use more descriptive device name
  dt-bindings: memory: synopsys,ddrc-ecc: Detach Zynq DDRC controller support
  soc: sunxi: sram: Add support for the D1 system control
  soc: sunxi: sram: Export the LDO control register
  soc: sunxi: sram: Save a pointer to the OF match data
  soc: sunxi: sram: Return void from the release function
  soc: apple: rtkit: Add apple_rtkit_poll
  soc: imx: add i.MX93 media blk ctrl driver
  soc: imx: add i.MX93 SRC power domain driver
  soc: imx: imx8m-blk-ctrl: Use genpd_xlate_onecell
  soc: imx: imx8mp-blk-ctrl: handle PCIe PHY resets
  soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl
  soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR
  soc: imx: add icc paths for i.MX8MP hsio/hdmi blk ctrl
  soc: imx: add icc paths for i.MX8MP media blk ctrl
  ...

The function psci_pd_try_set_osi_mode() will print an error if enabling
OSI mode fails. To ease debugging PSCI issues print corresponding
message if switching to PC mode fails too.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220926110249.666813-1-dmitry.baryshkov@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Currently, we are using CPU_PM_CPU_IDLE_ENTER_PARAM() for all SBI HSM
suspend types so retentive suspend types are also treated non-retentive
and kernel will do redundant additional work for these states.

The BIT[31] of SBI HSM suspend types allows us to differentiate between
retentive and non-retentive suspend types so we should use this BIT
to call appropriate CPU_PM_CPU_IDLE_ENTER_xyz() macro.

Fixes: 6abf32f1d9c5 ("cpuidle: Add RISC-V SBI CPU idle driver")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20220718084553.2056169-1-apatel@ventanamicro.com/
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

gov has already been NULL checked at the beginning of
cpuidle_switch_governor, so remove redundant check.

While at it, use pr_info() instead printk() to address the following
checkpatch warning:

WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then
dev_info(dev, ... then pr_info(...  to printk(KERN_INFO ...

Signed-off-by: Yu Liao <liaoyu15@huawei.com>
[ rjw: Subject and changelog edits, added empty line after if () ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>