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drivers: Add compilation flag for iosys-map.h

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Determining whether the header file iosys-map.h is present in the kernel
is currently determine by kernel version. However, for Linux v5.15,
iosys-map.h has been backported in order to support simple-framebuffer
for early display. Therefore, we cannot rely on the kernel version to
indicate whether iosys-map is present. This is also true for 3rd party
Linux kernels that backport changes as well. Fix this by adding a
compile time flag, that will be set accordingly by the conftest script
if this header is present.

Bug 4119327
Bug 4228080

Change-Id: Ibd814285b2a07932ede2fbe9e6dc8fd03039d0c3
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2971954
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Jon Hunter
2023-07-28 14:11:20 +01:00
committed by mobile promotions
parent b3b4cf6f51
commit 214beca091
7 changed files with 39 additions and 27 deletions
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3
scripts/conftest/Makefile
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@@ -106,7 +106,8 @@ $(obj)/conftest/patches.h: $(NV_CONFTEST_SCRIPT)
# corresponding #define will be generated in conftest/headers.h.
NV_HEADER_PRESENCE_TESTS = \
generated/autoconf.h \
linux/kconfig.h
linux/kconfig.h \
linux/iosys-map.h
# Filename to store the define for the header in $(1); this is only consumed by
# the rule below that concatenates all of these together.