[OS-BUILD PATCH 0/5] [redhat] enable CONFIG_CMA on aarch64 in ARK as tech-preview

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From: David Hildenbrand on gitlab.com
Merge Request: https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1592

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2043141
Upstream: RHEL only

The above bugzilla is for RHEL9/CS9 and I'll send a MR soon that performs
the same changes to CS9.





Enable CONFIG_CMA on aarch64 in ARK as we already have in fedora. We did
the same change for x86-64 just recently. Move the relevant configs from
redhat/configs/fedora to redhat/configs/common.

While in tech-preview, we'll require a manual configuration of cma on
the kernel command line -- we will default to "cma=0". Once e.g., "cma=64M"
has been specified, cma_activate_area() will call mark_tech_preview("CMA"),
essentially tainting the kernel. Once no longer in tech-preview, we can
enable CMA as default by e.g., similarly defaulting to "cma=64M".

The real change is preceded by some cleanups around CMA configs.

Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>

---
 redhat/configs/ark/generic/arm/CONFIG_CMA_SIZE_MBYTES                                                                                |  1 +
 redhat/configs/fedora/generic/arm/CONFIG_CMA => redhat/configs/common/generic/arm/CONFIG_CMA                                         |  0 
 redhat/configs/fedora/generic/arm/CONFIG_CMA_ALIGNMENT => redhat/configs/common/generic/arm/CONFIG_CMA_ALIGNMENT                     |  0 
 redhat/configs/fedora/generic/arm/CONFIG_CMA_SIZE_SEL_MAX => redhat/configs/common/generic/arm/CONFIG_CMA_SIZE_SEL_MAX               |  0 
 redhat/configs/fedora/generic/arm/CONFIG_CMA_SIZE_SEL_MBYTES => redhat/configs/common/generic/arm/CONFIG_CMA_SIZE_SEL_MBYTES         |  0 
 redhat/configs/fedora/generic/arm/CONFIG_CMA_SIZE_SEL_MIN => redhat/configs/common/generic/arm/CONFIG_CMA_SIZE_SEL_MIN               |  0 
 redhat/configs/fedora/generic/arm/CONFIG_CMA_SIZE_SEL_PERCENTAGE => redhat/configs/common/generic/arm/CONFIG_CMA_SIZE_SEL_PERCENTAGE |  0 
 redhat/configs/fedora/generic/arm/CONFIG_DMA_CMA => redhat/configs/common/generic/arm/CONFIG_DMA_CMA                                 |  0 
 redhat/configs/common/generic/powerpc/CONFIG_CMA_AREAS                                                                               |  1 -
 redhat/configs/common/generic/powerpc/CONFIG_CMA_DEBUG                                                                               |  1 -
 redhat/configs/common/generic/powerpc/CONFIG_CMA_DEBUGFS                                                                             |  1 -
 redhat/configs/common/generic/s390x/CONFIG_CMA_AREAS                                                                                 |  1 -
 redhat/configs/common/generic/s390x/CONFIG_CMA_DEBUG                                                                                 |  1 -
 redhat/configs/common/generic/s390x/CONFIG_CMA_DEBUGFS                                                                               |  1 -
 redhat/configs/common/generic/x86/x86_64/CONFIG_CMA_AREAS                                                                            |  1 -
 redhat/configs/common/generic/x86/x86_64/CONFIG_CMA_DEBUG                                                                            |  1 -
 redhat/configs/common/generic/x86/x86_64/CONFIG_CMA_DEBUGFS                                                                          |  1 -
 redhat/configs/ark/generic/CONFIG_CMA_AREAS => redhat/configs/common/generic/CONFIG_CMA_AREAS                                        |  0 
 redhat/configs/ark/generic/CONFIG_CMA_DEBUG => redhat/configs/common/generic/CONFIG_CMA_DEBUG                                        |  0 
 redhat/configs/ark/generic/CONFIG_CMA_DEBUGFS => redhat/configs/common/generic/CONFIG_CMA_DEBUGFS                                    |  0 
 redhat/configs/fedora/generic/arm/CONFIG_CMA_AREAS                                                                                   |  1 -
 redhat/configs/fedora/generic/arm/CONFIG_CMA_DEBUG                                                                                   |  1 -
 redhat/configs/fedora/generic/CONFIG_CMA_SYSFS                                                                                       |  1 -
 23 files changed, 1 insertions(+), 12 deletions(-)
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