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gpu: nvgpu: fixes for tu104 usermode register write

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- correct user register base l->usermode_regs. It should be bar0 address
plus .usermode.bus_base(). .bus_base() returns user register base offset
relative to bar0.
- correct .usermode.base for tu104. .base should be user register base
relative to virtual function base.
- use nvgpu_usermode_writel for tu104 ring doorbell.

Jira GVSCI-4650

Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: Iba98063c4a5cc007459319b0311e546ff10604a4
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2403813
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Richard Zhao
2020-08-25 16:13:42 -07:00
committed by Alex Waterman
parent a2809088eb
commit 2dfa05ba50
2 changed files with 6 additions and 5 deletions
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4
drivers/gpu/nvgpu/os/linux/module_usermode.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2017-2020, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -60,7 +60,7 @@ void nvgpu_init_usermode_support(struct gk20a *g)
}
if (l->usermode_regs == NULL) {
l->usermode_regs = l->regs + g->ops.usermode.base(g);
l->usermode_regs = l->regs + g->ops.usermode.bus_base(g);
l->usermode_regs_saved = l->usermode_regs;
}