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Revert "gpu: nvgpu: Get coherency on gv100 + NVLINK working"

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Also revert other changes related to IO coherence. This may be the
culprit in a recent dev-kernel lockdown.

Bug 2070609

Change-Id: Ida178aef161fadbc6db9512521ea51c702c1564b
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665914
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Srikar Srimath Tirumala <srikars@nvidia.com>
This commit is contained in:
Alex Waterman
2018-02-28 09:19:19 -08:00
committed by Srikar Srimath Tirumala
parent 3fdd8e38b2
commit 5a35a95654
28 changed files with 126 additions and 274 deletions
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8
drivers/gpu/nvgpu/common/linux/module.c
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@@ -20,7 +20,6 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
@@ -1108,7 +1107,6 @@ static int gk20a_probe(struct platform_device *dev)
struct gk20a *gk20a;
int err;
struct gk20a_platform *platform = NULL;
struct device_node *np;
if (dev->dev.of_node) {
const struct of_device_id *match;
@@ -1149,12 +1147,6 @@ static int gk20a_probe(struct platform_device *dev)
if (err)
goto return_err;
np = nvgpu_get_node(gk20a);
if (of_dma_is_coherent(np)) {
__nvgpu_set_enabled(gk20a, NVGPU_USE_COHERENT_SYSMEM, true);
__nvgpu_set_enabled(gk20a, NVGPU_SUPPORT_IO_COHERENCE, true);
}
if (nvgpu_platform_is_simulation(gk20a))
__nvgpu_set_enabled(gk20a, NVGPU_IS_FMODEL, true);