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authorKonsta Holtta <kholtta@nvidia.com>2018-05-21 10:31:10 -0400
committermobile promotions <svcmobile_promotions@nvidia.com>2018-06-20 15:25:49 -0400
commit84536b929be7e56dd8221ba8d541fd4cbcd149ed (patch)
treedd52bafa84fcf297861a8f3356f2f7651ea35792 /drivers/gpu/nvgpu/gv11b/gv11b.c
parent819f32bdf119ebf4d758a901c9a22c2c4a7d167a (diff)
gpu: nvgpu: split gk20a_submit_append_gpfifo
In gk20a_submit_channel_gpfifo the gpfifo entries can come from a kernel buffer or from userspace. To simplify the logic in gk20a_submit_append_gpfifo, extract out a function that copies the entries directly from userspace to the gpu memory for performance, and another function that copies from a kernel buffer to the gpu memory. The latter is used for kernel submits and when the gpfifo pipe exists which would mean that the gpfifo memory is in vidmem and is thus not directly accessible with a kernel virtual pointer. While this function is being changed a lot, also rename it to start with nvgpu_ instead of gk20a_. Additionally, simplify pushbuffer debug tracing by always using the kernel memory for the prints. Tracing when the gpfifo memory has been allocated in vidmem is no longer supported; sysmem is almost always used in practice anyway. Jira NVGPU-705 Change-Id: Icab843a379a75fb46054dee157a0a54ff9fbba59 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1730481 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gv11b/gv11b.c')
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