Pull LoongArch updates from Huacai Chen:

 - Adjust build infrastructure for 32BIT/64BIT

 - Add HIGHMEM (PKMAP and FIX_KMAP) support

 - Show and handle CPU vulnerabilites correctly

 - Batch the icache maintenance for jump_label

 - Add more atomic instructions support for BPF JIT

 - Add more features (e.g. fsession) support for BPF trampoline

 - Some bug fixes and other small changes

* tag 'loongarch-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (21 commits)
  selftests/bpf: Enable CAN_USE_LOAD_ACQ_STORE_REL for LoongArch
  LoongArch: BPF: Add fsession support for trampolines
  LoongArch: BPF: Introduce emit_store_stack_imm64() helper
  LoongArch: BPF: Support up to 12 function arguments for trampoline
  LoongArch: BPF: Support small struct arguments for trampoline
  LoongArch: BPF: Open code and remove invoke_bpf_mod_ret()
  LoongArch: BPF: Support load-acquire and store-release instructions
  LoongArch: BPF: Support 8 and 16 bit read-modify-write instructions
  LoongArch: BPF: Add the default case in emit_atomic() and rename it
  LoongArch: Define instruction formats for AM{SWAP/ADD}.{B/H} and DBAR
  LoongArch: Batch the icache maintenance for jump_label
  LoongArch: Add flush_icache_all()/local_flush_icache_all()
  LoongArch: Add spectre boundry for syscall dispatch table
  LoongArch: Show CPU vulnerabilites correctly
  LoongArch: Make arch_irq_work_has_interrupt() true only if IPI HW exist
  LoongArch: Use get_random_canary() for stack canary init
  LoongArch: Improve the logging of disabling KASLR
  LoongArch: Align FPU register state to 32 bytes
  LoongArch: Handle CONFIG_32BIT in syscall_get_arch()
  LoongArch: Add HIGHMEM (PKMAP and FIX_KMAP) support
  ...

Adjust build infrastructure (Kconfig, Makefile and ld scripts) to let
us enable both 32BIT/64BIT kernel build.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

With the new PCI pwrctrl API and PCI slot binding and power drivers, we now
have a way to describe and power up WiFi/BT adapters connected through a
PCIe or M.2 slot, or populated onto the mainboard itself.  The latter case
has the adapter layout or design copied verbatim, replacing the slot with
direct connections.

Integrate the PCI pwrctrl API into the PCIe driver, so that power is
properly enabled before PCIe link training is done, allowing the card to
successfully be detected.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20260324052002.4072430-8-wenst@chromium.org

- Add rcar-host OF Kconfig dependency to avoid objtool no-cfi warning
  (Nathan Chancellor)

* pci/controller/misc:
  PCI: rcar-host: Add OF Kconfig dependency to avoid objtool no-cfi warning

- Export irq_domain_free_irqs() to allow PCI/MSI drivers that tear down
  MSI domains to be built as modules (Aaron Kling)

- Export tegra_cpuidle_pcie_irqs_in_use(), which disables Tegra CC6 while
  PCI IRQs are in use, so pci-tegra can be built as a module (Aaron Kling)

- Allow pci-tegra to be built as a module (Aaron Kling)

* pci/controller/tegra:
  PCI: tegra: Allow building as a module
  cpuidle: tegra: Export tegra_cpuidle_pcie_irqs_in_use()
  irqdomain: Export irq_domain_free_irqs()

Change the module macro back to builtin, which does not define an exit
function. This will prevent the module from being unloaded. There are
concerns with modules not cleaning up IRQs on unload, thus unload must be
specifically disallowed. Drop the remove callback as it is unused.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250731-pci-tegra-module-v7-3-cad4b088b8fb@gmail.com

Introduce PCIe Root Complex driver for ASPEED SoCs. Support RC
initialization, reset, clock, IRQ domain, and MSI domain setup. Implement
platform-specific setup and register configuration for ASPEED. And provide
PCI config space read/write and INTx/MSI interrupt handling.

Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20251216-upstream_pcie_rc-v7-6-4aeb0f53c4ce@aspeedtech.com

After commit 894af4a1cde6 ("objtool: Validate kCFI calls"), compile
testing pcie-rcar-host.c with CONFIG_FINEIBT=y and CONFIG_OF=n results
in a no-cfi objtool warning in rcar_pcie_probe():

  $ cat allno.config
  CONFIG_CFI=y
  CONFIG_COMPILE_TEST=y
  CONFIG_CPU_MITIGATIONS=y
  CONFIG_GENERIC_PHY=y
  CONFIG_MITIGATION_RETPOLINE=y
  CONFIG_MODULES=y
  CONFIG_PCI=y
  CONFIG_PCI_MSI=y
  CONFIG_PCIE_RCAR_HOST=y
  CONFIG_X86_KERNEL_IBT=y

  $ make -skj"$(nproc)" ARCH=x86_64 KCONFIG_ALLCONFIG=1 LLVM=1 clean allnoconfig vmlinux
  vmlinux.o: warning: objtool: rcar_pcie_probe+0x191: no-cfi indirect call!

When CONFIG_OF is unset, of_device_get_match_data() returns NULL, so
LLVM knows this indirect call has no valid destination and drops the
kCFI setup before the call, triggering the objtool check that makes sure
all indirect calls have kCFI setup.

This driver depends on OF for probing with non-NULL data for every match
so this call will never be NULL in practice. Add a hard Kconfig
dependency on OF to avoid the warning.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510092124.O2IX0Jek-lkp@intel.com/
Closes: https://github.com/ClangBuiltLinux/linux/issues/2134
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20251014-rcar_pcie_probe-avoid-nocfi-objtool-warning-v2-1-6e0204b002c6@kernel.org

- Add Renesas RZ/G3S host controller DT binding and driver (Claudiu Beznea)

* pci/controller/rzg3s-host:
  PCI: Add Renesas RZ/G3S host controller driver
  dt-bindings: PCI: Add Renesas RZ/G3S PCIe controller binding

- Drop ARM dependency so we can build test on other arches (Geert
  Uytterhoeven)

* pci/controller/rcar-gen2:
  PCI: rcar-gen2: Drop ARM dependency from PCI_RCAR_GEN2