NVIDIA: VR: SAUCE: [Config] CXL config annotations for Type-2 device and RAS support

BugLink: https://bugs.launchpad.net/bugs/2143032

Add Ubuntu kernel config annotations for CXL-related configs introduced
or changed by the following cherry-picked patch series:
  - drivers/cxl changes between v6.17.9 and upstream 7.0 (which includes
    a portion of Terry Bowman's v14 CXL RAS series merged via
    for-7.0/cxl-aer-prep)
  - Alejandro Lucero's v23 CXL Type-2 device support series
  - Smita Koralahalli's v6 patch 3/9 (cxl/region: Skip decoder reset on
    detach for autodiscovered regions)

CONFIG_CXL_BUS:           Enable CXL bus support built-in; required for
                          CXL Type-2 device and RAS support
CONFIG_CXL_PCI:           Enable CXL PCI management built-in; auto-selects
                          CXL_MEM; required for CXL Type-2 device support
CONFIG_CXL_MEM:           Auto-selected by CXL_PCI; required for CXL
                          memory expansion and Type-2 device support
CONFIG_CXL_PORT:          Required for CXL port enumeration; defaults to
                          CXL_BUS value
CONFIG_FWCTL:             Selected by CXL_BUS when CXL_FEATURES is enabled;
                          required for CXL feature mailbox access
CONFIG_CXL_RAS:           New def_bool replacing PCIEAER_CXL (Terry Bowman
                          v14); auto-enabled with ACPI_APEI_GHES+PCIEAER+
                          CXL_BUS for CXL RAS error handling
CONFIG_SFC_CXL:           Solarflare SFC9100-family CXL Type-2 device
                          support; not needed for NVIDIA platforms (n)
CONFIG_ACPI_APEI_EINJ:    Required prerequisite for CONFIG_ACPI_APEI_EINJ_CXL
CONFIG_ACPI_APEI_EINJ_CXL: CXL protocol error injection support via APEI EINJ

CONFIG_PCIEAER_CXL: Remove it from debian.master policy. This config
  was removed from Kconfig by upstream commit d18f1b7
 (PCI/AER: Replace PCIEAER_CXL symbol with CXL_RAS) which is included
 in this port.

CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION: Override debian.master
  amd64-only policy to include arm64. Commit 4d873c5 added
  'select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION' to arch/arm64/Kconfig,
  making this y on arm64 as well.

CONFIG_GENERIC_CPU_CACHE_MAINTENANCE: New bool config defined by
  c460697 in lib/Kconfig. Selected by arm64 via 4d873c5;
  not selected by x86. Set arm64: y, amd64: -.

CONFIG_CACHEMAINT_FOR_HOTPLUG: New optional menuconfig defined by
  2ec3b54 in drivers/cache/Kconfig. Depends on
  GENERIC_CPU_CACHE_MAINTENANCE so becomes visible on arm64. Defaults
  to n; HiSilicon HHA driver not needed for NVIDIA platforms.
  Set arm64: n, amd64: -.

Signed-off-by: Jiandi An <jan@nvidia.com>
Acked-by: Jamie Nguyen <jamien@nvidia.com>
Acked-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Signed-off-by: Brad Figg <bfigg@nvidia.com>

Author: JiandiAnNVIDIA

debian.master/config/annotations

@@ -10049,7 +10049,6 @@ CONFIG_PCENGINES_APU2                           policy<{'amd64': 'm'}>
 CONFIG_PCI                                      policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 'riscv64': 'y', 's390x': 'y'}>
 CONFIG_PCI200SYN                                policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm', 'riscv64': 'm'}>
 CONFIG_PCIEAER                                  policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': '-', 'riscv64': 'y', 's390x': 'y'}>
-CONFIG_PCIEAER_CXL                              policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'riscv64': 'y'}>
 CONFIG_PCIEAER_INJECT                           policy<{'amd64': 'n', 'arm64': 'n', 'armhf': 'n', 'ppc64el': '-', 'riscv64': 'n', 's390x': 'n'}>
 CONFIG_PCIEASPM                                 policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 'riscv64': 'y', 's390x': 'y'}>
 CONFIG_PCIEASPM_PERFORMANCE                     policy<{'amd64': 'n', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n', 'riscv64': 'n', 's390x': 'n'}>

debian.nvidia-6.17/config/annotations

@@ -204,6 +204,42 @@ CONFIG_UBUNTU_ODM_DRIVERS                       note<'Disable all Ubuntu ODM dri
 CONFIG_ULTRASOC_SMB                             policy<{'arm64': 'n'}>
 CONFIG_ULTRASOC_SMB                             note<'Required for Grace enablement'>
 
+CONFIG_CXL_BUS                                  policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_CXL_BUS                                  note<'Enable CXL bus support built-in; required for CXL Type-2 device and RAS support'>
+
+CONFIG_CXL_PCI                                  policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_CXL_PCI                                  note<'Enable CXL PCI management built-in; auto-selects CXL_MEM; required for CXL Type-2 device support'>
+
+CONFIG_CXL_MEM                                  policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_CXL_MEM                                  note<'Auto-selected by CXL_PCI; required for CXL memory expansion and Type-2 device support'>
+
+CONFIG_CXL_PORT                                 policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_CXL_PORT                                 note<'Required for CXL port enumeration; defaults to CXL_BUS value'>
+
+CONFIG_FWCTL                                    policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_FWCTL                                    note<'Selected by CXL_BUS when CXL_FEATURES is enabled; required for CXL feature mailbox access'>
+
+CONFIG_CXL_RAS                                  policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_CXL_RAS                                  note<'New def_bool replacing PCIEAER_CXL; auto-enabled with ACPI_APEI_GHES+PCIEAER+CXL_BUS; CXL RAS error handling support'>
+
+CONFIG_SFC_CXL                                  policy<{'amd64': 'n', 'arm64': 'n'}>
+CONFIG_SFC_CXL                                  note<'Solarflare SFC9100-family CXL Type-2 device support; not needed for NVIDIA platforms'>
+
+CONFIG_ACPI_APEI_EINJ                           policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_ACPI_APEI_EINJ                           note<'Required for CONFIG_ACPI_APEI_EINJ_CXL'>
+
+CONFIG_ACPI_APEI_EINJ_CXL                       policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_ACPI_APEI_EINJ_CXL                       note<'CXL protocol error injection support via APEI EINJ'>
+
+CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION  policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION  note<'Override debian.master amd64-only; arm64 selects this via arch/arm64/Kconfig since 4d873c5dc3ed'>
+
+CONFIG_GENERIC_CPU_CACHE_MAINTENANCE            policy<{'amd64': '-', 'arm64': 'y'}>
+CONFIG_GENERIC_CPU_CACHE_MAINTENANCE            note<'Selected by arm64 via arch/arm64/Kconfig since 4d873c5dc3ed; not selected by x86'>
+
+CONFIG_CACHEMAINT_FOR_HOTPLUG                   policy<{'amd64': '-', 'arm64': 'n'}>
+CONFIG_CACHEMAINT_FOR_HOTPLUG                   note<'Optional HiSilicon HHA cache maintenance driver; depends on GENERIC_CPU_CACHE_MAINTENANCE; not needed for NVIDIA platforms'>
+
 
 # ---- Annotations without notes ----