atomic changes break drm-next-kmod?

[Niclas Zeising]

On 07/03/18 17:02, O. Hartmann wrote:
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> Am Tue, 3 Jul 2018 10:19:57 -0400
> Michael Butler <imb at protected-networks.net> schrieb:
> 
>> It seems recent changes (SVN r335873?) may have broken drm-next-kmod ..
>>
>> --- i915_drv.o ---
>> In file included from i915_drv.c:30:
>> In file included from
>> /usr/ports/graphics/drm-next-kmod/work/kms-drm-a753215/linuxkpi/gplv2/include/linux/acpi.h:26:
>> In file included from
>> /usr/ports/graphics/drm-next-kmod/work/kms-drm-a753215/linuxkpi/gplv2/include/linux/device.h:4:
>> In file included from
>> /usr/src/sys/compat/linuxkpi/common/include/linux/device.h:35:
>> In file included from
>> /usr/src/sys/compat/linuxkpi/common/include/linux/types.h:37:
>> In file included from /usr/src/sys/sys/systm.h:44:
>> ./machine/atomic.h:450:29: error: invalid operand for instruction
>> ATOMIC_ASM(clear,    long,  "andq %1,%0",  "ir", ~v);
>>                              ^
>> <inline asm>:1:7: note: instantiated into assembly here
>>          andq $9223372036854775807,40672(%r14)
>>               ^~~~~~~~~~~~~~~~~~~~~
>> 1 error generated.
>> *** [i915_drv.o] Error code 1
>>
>> make[3]: stopped in
>> /usr/ports/graphics/drm-next-kmod/work/kms-drm-a753215/i915
>> --- i915_gem.o ---
>> In file included from i915_gem.c:28:
>> In file included from
>> /usr/ports/graphics/drm-next-kmod/work/kms-drm-a753215/include/drm/drmP.h:38:
>> In file included from /usr/src/sys/sys/malloc.h:42:
>> In file included from /usr/src/sys/sys/systm.h:44:
>> ./machine/atomic.h:449:29: error: invalid operand for instruction
>> ATOMIC_ASM(set,      long,  "orq %1,%0",   "ir",  v);
>>                              ^
>> <inline asm>:1:6: note: instantiated into assembly here
>>          orq $-9223372036854775808,40672(%r14)
>>              ^~~~~~~~~~~~~~~~~~~~~~
>> 1 error generated.
>> *** [i915_gem.o] Error code 1
>>
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> 
> 
> It breaks also graphics/drm-stable-kmod (see PR 229484,
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229484, same error as you described
> above) and also emulators/virtualbox-ose-kmod. As long as CURRENT revision is < r335873,
> those kmod compile well.

We are looking into why both the drm ports fail.
Regards
-- 
Niclas