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gpu: nvgpu: Enable IO coherency on GV100

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This reverts commit 848af2ce6d.

This is a revert of a revert, etc, etc. It re-enables IO coherence again.

JIRA EVLR-2333

Change-Id: Ibf97dce2f892e48a1200a06cd38a1c5d9603be04
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1669722
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2018-03-06 10:43:16 -08:00
committed by mobile promotions
parent f85a0d3e00
commit 418f31cd91
28 changed files with 275 additions and 126 deletions
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17
drivers/gpu/nvgpu/common/linux/pci.c
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@@ -17,13 +17,13 @@
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <nvgpu/nvgpu_common.h>
#include <nvgpu/kmem.h>
#include <nvgpu/enabled.h>
#include <nvgpu/nvlink.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include "gk20a/gk20a.h"
#include "clk/clk.h"
@@ -566,6 +566,12 @@ static int nvgpu_pci_probe(struct pci_dev *pdev,
platform->g = g;
l->dev = &pdev->dev;
np = nvgpu_get_node(g);
if (of_dma_is_coherent(np)) {
__nvgpu_set_enabled(g, NVGPU_USE_COHERENT_SYSMEM, true);
__nvgpu_set_enabled(g, NVGPU_SUPPORT_IO_COHERENCE, true);
}
err = pci_enable_device(pdev);
if (err)
return err;
@@ -644,13 +650,6 @@ static int nvgpu_pci_probe(struct pci_dev *pdev,
g->mm.has_physical_mode = false;
np = nvgpu_get_node(g);
if (of_dma_is_coherent(np)) {
__nvgpu_set_enabled(g, NVGPU_DMA_COHERENT, true);
__nvgpu_set_enabled(g, NVGPU_SUPPORT_IO_COHERENCE, true);
}
return 0;
}