Re: [PATCH] gpu/drm/amd/amdkfd: fix build, select MMU_NOTIFIER

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On Thu, Apr 19, 2018 at 1:46 PM, Anders Roxell <anders.roxell@xxxxxxxxxx> wrote:
> On 14 April 2018 at 04:49, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
>> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>>
>> When CONFIG_MMU_NOTIFIER is not enabled, struct mmu_notifier has an
>> incomplete type definition, which causes build errors.
>>
>> ../drivers/gpu/drm/amd/amdkfd/kfd_priv.h:607:22: error: field 'mmu_notifier' has incomplete type
>> ../include/linux/kernel.h:979:32: error: dereferencing pointer to incomplete type
>> ../include/linux/kernel.h:980:18: error: dereferencing pointer to incomplete type
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:434:2: error: implicit declaration of function 'mmu_notifier_unregister_no_release' [-Werror=implicit-function-declaration]
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:435:2: error: implicit declaration of function 'mmu_notifier_call_srcu' [-Werror=implicit-function-declaration]
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:438:21: error: variable 'kfd_process_mmu_notifier_ops' has initializer but incomplete type
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:439:2: error: unknown field 'release' specified in initializer
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:439:2: warning: excess elements in struct initializer [enabled by default]
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:439:2: warning: (near initialization for 'kfd_process_mmu_notifier_ops') [enabled by default]
>> ../drivers/gpu/drm/amd/amdkfd/kfd_process.c:534:2: error: implicit declaration of function 'mmu_notifier_register' [-Werror=implicit-function-declaration]
>>
>> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>> Cc: Oded Gabbay <oded.gabbay@xxxxxxxxx>
>> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
>
> Tested-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
>
>> ---
>> From linux-next, not mmotm, but found in mmotm builds.
>>
>>  drivers/gpu/drm/amd/amdkfd/Kconfig |    1 +
>>  1 file changed, 1 insertion(+)
>>
>> --- mmotm-2018-0413-1728.orig/drivers/gpu/drm/amd/amdkfd/Kconfig
>> +++ mmotm-2018-0413-1728/drivers/gpu/drm/amd/amdkfd/Kconfig
>> @@ -6,5 +6,6 @@ config HSA_AMD
>>         tristate "HSA kernel driver for AMD GPU devices"
>>         depends on DRM_AMDGPU && X86_64
>>         imply AMD_IOMMU_V2
>> +       select MMU_NOTIFIER
>>         help
>>           Enable this if you want to use HSA features on AMD GPU devices.
>>

Thanks, taken to -fixes
Oded
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