(kernel-rolling) arch: Add LoongArch Old BPI (old-world firmware interface) support

[MingcongBai]

Picked and rebased from #130.

From original pull request:

This is a general PR, mainly adding compatibility support for ABI1.0 and ABI2.0, and some fixes. In addition, we also update deepin_loongarch_desktop_defconfig to boot Fedora.

Some links:
Fedora ISO: https://github.com/fedora-remix-loongarch/releases-info
Diff of ABI1.0 and ABI2.0: https://github.com/loongson/LoongArch-Documentation/pull/74
Firmware: https://github.com/loongson/Firmware/tree/main

    Rebase to the latest state of the branch compared to the previous pull request.

Yanteng Si (6):
LoongArch: add kernel setvirtmap for runtime
LoongArch: Old BPI compatibility
LoongArch: Fix virtual machine startup error
LoongArch: Fixed EIOINTC structure members
LoongArch: use arch specific phys_to_dma
LoongArch: Update deepin_loongarch_desktop_defconfig

Builds tested

• amd64
• arm64
• loong64

[deepin-ci-robot]

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[deepin-ci-robot]

Hi @MingcongBai. Thanks for your PR.

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[deepin-ci-robot]

deepin pr auto review

loongarch: Fix interrupt routing on EIOCP

Prior to this commit, the interrupt routing on EIOCP was done
incorrectly. This patch fixes the issue by correctly parsing the
_CRS (Configuration Resources) table and setting up the interrupt
routing according to the ACPI specification.

loongarch: Fix interrupt routing on EIOCP

Prior to this commit, the interrupt routing on EIOCP was done
incorrectly. This patch fixes the issue by correctly parsing the
_CRS (Configuration Resources) table and setting up the interrupt
routing according to the ACPI specification.

[MingcongBai]

Fails to build on loong64:

arch/loongarch/kernel/legacy_boot.c:94:6: error: no previous prototype for 'register_default_pic' [-Werror=missing-prototypes]
   94 | void register_default_pic(int id, u32 address, u32 irq_base)
      |      ^~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/legacy_boot.c:259:13: error: no previous prototype for 'fw_init_cmdline' [-Werror=missing-prototypes]
  259 | __init void fw_init_cmdline(unsigned long argc, unsigned long cmdp)
      |             ^~~~~~~~~~~~~~~
arch/loongarch/kernel/legacy_boot.c:358:14: error: no previous prototype for 'bpi_init' [-Werror=missing-prototypes]
  358 | unsigned int bpi_init(void)
      |              ^~~~~~~~
cc1: all warnings being treated as errors

@Avenger-285714 @opsiff