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gpu: nvgpu: gv100: nvlink endpoint driver

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The following changes implements the initial (as per bringup) nvlink driver.

(1) SW initialization of nvlink core driver structures
(2) Nvlink interrupt handling
(3) Device initialization (IOCTRL, pll and clocks, device level intr)
(4) Falcon support for minion
(5) Minion load and bootstrapping
(6) Link initialization and DL PROD settings
(7) Device Interface init (and switching HSHUB to nvlink)
(8) HS set/get mode for both link and sublink
(9) Topology discovery and VBIOS settings.
(10) Ensures we get physical contiguous memory when Nvlink is enabled

This driver includes a hack for the current single dev/single link limitation.

JIRA: EVLR-2331
JIRA: EVLR-2330
JIRA: EVLR-2329
JIRA: EVLR-2328

Change-Id: Idca9a819179376cc655784482b24b575a52fa9e5
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1656790
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Thomas Fleury
2018-01-23 14:20:43 -08:00
committed by mobile promotions
parent 223ea4d8a1
commit 0601fd25a5
15 changed files with 3017 additions and 44 deletions
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4
drivers/gpu/nvgpu/common/linux/nvgpu_mem.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2017-2018, 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,
@@ -536,6 +536,8 @@ static u64 nvgpu_mem_linux_sgl_gpu_addr(struct gk20a *g, void *sgl,
static bool nvgpu_mem_linux_sgt_iommuable(struct gk20a *g,
struct nvgpu_sgt *sgt)
{
if (nvgpu_is_enabled(g, NVGPU_MM_USE_PHYSICAL_SG))
return false;
return true;
}