[PATCH 1/3] drm/amdkfd: add new flags for svm

[Eric Huang]

No. There is only internal link for now, because it is under review. 
Once it is submitted, external link should be in gerritgit for libhsakmt.

Regards,
Eric

On 2022-06-27 11:58, Alex Deucher wrote:
> On Mon, Jun 27, 2022 at 11:36 AM Eric Huang <jinhuieric.huang at amd.com> wrote:
>> https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgerrit-git.amd.com%2Fc%2Fcompute%2Fec%2Flibhsakmt%2F%2B%2F697296&data=05%7C01%7Cjinhuieric.huang%40amd.com%7C61498029cd6743a4519108da5855f02e%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637919423397667222%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=wPlHRSmOyzO%2B2vbwN9IK4qR5dhk%2BaOw2rt3JEdjizRU%3D&reserved=0
> Got an external link?
>
> Alex
>
>> Regards,
>> Eric
>>
>> On 2022-06-27 11:33, Alex Deucher wrote:
>>> On Fri, Jun 24, 2022 at 12:03 PM Eric Huang <jinhuieric.huang at amd.com> wrote:
>>>> It is to add new options for always keeping gpu mapping
>>>> and custom of coarse grain allocation intead of fine
>>>> grain as default.
>>>>
>>>> Signed-off-by: Eric Huang <jinhuieric.huang at amd.com>
>>> Can you provide a link to the proposed userspace for this?
>>>
>>> Alex
>>>
>>>> ---
>>>>    include/uapi/linux/kfd_ioctl.h | 4 ++++
>>>>    1 file changed, 4 insertions(+)
>>>>
>>>> diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
>>>> index fd49dde4d5f4..9dbf215675a0 100644
>>>> --- a/include/uapi/linux/kfd_ioctl.h
>>>> +++ b/include/uapi/linux/kfd_ioctl.h
>>>> @@ -1076,6 +1076,10 @@ struct kfd_ioctl_cross_memory_copy_args {
>>>>    #define KFD_IOCTL_SVM_FLAG_GPU_EXEC    0x00000010
>>>>    /* GPUs mostly read, may allow similar optimizations as RO, but writes fault */
>>>>    #define KFD_IOCTL_SVM_FLAG_GPU_READ_MOSTLY     0x00000020
>>>> +/* Keep GPU memory mapping always valid as if XNACK is disable */
>>>> +#define KFD_IOCTL_SVM_FLAG_GPU_ALWAYS_MAPPED   0x00000040
>>>> +/* Allow set custom flags instead of defaults */
>>>> +#define KFD_IOCTL_SVM_FLAG_CUSTOM      0x80000000
>>>>
>>>>    /**
>>>>     * kfd_ioctl_svm_op - SVM ioctl operations
>>>> --
>>>> 2.25.1
>>>>