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gpu: nvgpu: fix arbiter teardown on PCI

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The driver is not properly tearing down the arbiter on the PCI driver
unload. This change makes sure that the workqueues are drained before
tearing down the driver

bug 200277762
JIRA: EVLR-1023

Change-Id: If98fd00e27949ba1569dd26e2af02b75897231a7
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: http://git-master/r/1320147
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
(cherry picked from commit 469308beca)
Reviewed-on: http://git-master/r/1324636
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sumeet Gupta <sumeetg@nvidia.com>
This commit is contained in:
David Nieto
2017-02-13 11:22:59 -08:00
committed by mobile promotions
parent ce057d784d
commit 26f904e2b7
3 changed files with 62 additions and 25 deletions
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4
drivers/gpu/nvgpu/pci.c
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@@ -460,6 +460,10 @@ static void nvgpu_pci_remove(struct pci_dev *pdev)
gk20a_wait_for_idle(&pdev->dev);
gk20a_dbg(gpu_dbg_shutdown, "Driver idle.\n");
#ifdef CONFIG_ARCH_TEGRA_18x_SOC
nvgpu_clk_arb_cleanup_arbiter(g);
#endif
gk20a_user_deinit(g->dev, &nvgpu_pci_class);
gk20a_dbg(gpu_dbg_shutdown, "User de-init done.\b");