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authorSang-Hun Lee <sanlee@nvidia.com>2014-06-03 16:28:45 -0400
committerDan Willemsen <dwillemsen@nvidia.com>2015-03-18 15:10:33 -0400
commitebf991e990f43f664340016c6825ee4c3cbd5e78 (patch)
tree80c9e184f75114f8b114ab17c7ab8f394439122a /drivers/gpu/nvgpu/gk20a/Makefile
parent5312fd2a1852cd965c8aea473aa357f4d9d65318 (diff)
gpu: nvgpu: flush write before unlocking
- gk20a_enable is reading the clock after unlocking the spinlock to flush any previous write - This could lead to a race if any write afterwards assume the write has been completed already - Read the clock before unlocking to ensure all previous writes have been completed before letting any other thread use gk20a Bug 200007520 Change-Id: I737fbbe825c68b25ca256c4a8ee2b99aa8baf0f5 Signed-off-by: Sang-Hun Lee <sanlee@nvidia.com> Reviewed-on: http://git-master/r/418485 (cherry picked from commit 2aed542a719caa69620766bf2dceefe50626c189) Reviewed-on: http://git-master/r/437842 Reviewed-by: Mitch Luban <mluban@nvidia.com> Tested-by: Mitch Luban <mluban@nvidia.com>
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