Re: [PATCH] drm/xe: Select INTEL_VSEC to fix build dependency

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On 2025/2/28 00:03, Lucas De Marchi wrote:
On Thu, Feb 27, 2025 at 03:32:06PM +0800, Su Hui wrote:
When build randconfig, there is an error:
ld: drivers/gpu/drm/xe/xe_vsec.o: in function `xe_vsec_init':
xe_vsec.c:(.text+0x182): undefined reference to `intel_vsec_register'

When CONFIG_DRM_XE=y and CONFIG_INTEL_VSEC=m is set, ld couldn't find
'intel_vsec_register'. Select INTEL_VSEC to fix this error.

Fixes: 0c45e76fcc62 ("drm/xe/vsec: Support BMG devices")
Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
---
drivers/gpu/drm/xe/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/xe/Kconfig b/drivers/gpu/drm/xe/Kconfig
index b51a2bde73e2..7a60d96d2dd6 100644
--- a/drivers/gpu/drm/xe/Kconfig
+++ b/drivers/gpu/drm/xe/Kconfig
@@ -44,6 +44,7 @@ config DRM_XE
    select WANT_DEV_COREDUMP
    select AUXILIARY_BUS
    select HMM_MIRROR
+    select INTEL_VSEC

intel_vsec is an x86 platform driver. I think we probably want to add a
config that depends on INTEL_VSEC rather than selecting it like this.
At the very least we need and `if x86` and also make sure the driver
works without that part.

There is a recursive dependency between INTEL_VSEC and DRM_XE:

        symbol DRM_XE depends on INTEL_VSEC
        symbol INTEL_VSEC depends on X86_PLATFORM_DEVICES
        symbol X86_PLATFORM_DEVICES is selected by DRM_XE

So if using 'depends on INTEL_VSEC', we should remove 'select X86_PLATFORM_DEVICES', like this one:

 config DRM_XE
        tristate "Intel Xe Graphics"
        depends on DRM && PCI && MMU && (m || (y && KUNIT=y))
+       depends on !X86 || INTEL_VSEC || INTEL_VSEC=n
+       depends on !X86 || !ACPI || ACPI_WMI
        select INTERVAL_TREE
        # we need shmfs for the swappable backing store, and in particular
        # the shmem_readpage() which depends upon tmpfs
@@ -27,8 +29,6 @@ config DRM_XE
        select BACKLIGHT_CLASS_DEVICE if ACPI
        select INPUT if ACPI
        select ACPI_VIDEO if X86 && ACPI
-       select X86_PLATFORM_DEVICES if X86 && ACPI
-       select ACPI_WMI if X86 && ACPI

The 'select X86_PLATFORM_DEVICES' is introduced by 67a9e86dc130 ("drm/xe: select X86_PLATFORM_DEVICES when ACPI_WMI is selected"), so both ACPI_WMI need to be changed.

Another choice is using 'select INTEL_VSEC if X86' and no need to change other things.
Any suggestion for these two choices?





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