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authorDeepak Nibade <dnibade@nvidia.com>2015-09-10 12:12:47 -0400
committerTerje Bergstrom <tbergstrom@nvidia.com>2015-10-12 11:58:35 -0400
commit1cf6539990dccd4c7a94154cd75d4c257ed39f37 (patch)
tree484363e821eb38100bd357d9fe221c6405d0600c /include/uapi/linux
parent960552df3ef3f270bce64ed00104dce300531369 (diff)
gpu: nvgpu: rework secure_page allocation path
Currently, if can_railgate = false, then we have below sequence to allocate secure_page - unrailgate GPU (forever) - reset_assert() - allocate secure_page - reset_deassert() But if we allocate secure page even before unrailgating GPU for first time, then we can avoid reset_assert()/deassert() calls since GPU should already be in reset/railgated at boot time hence, rework this sequence as below - init required mutex, set platform->reset_control - allocate secure page (GPU should already be in reset at this point) - gk20a_pm_init() which unrailgates GPU in case of can_railgate = false Bug 200137963 Bug 1678611 Change-Id: I79d0543bb5cf1eaf1009e1e6ac142532d84514a5 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/797153 (cherry picked from commit 368004501943d38c003747f6bec0384fed57ee65) Reviewed-on: http://git-master/r/816005 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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