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drm/nouveau: Revert "bus: remove cpu_coherent flag" 

This reverts commit aff51175cd.

The commit caused fence timeouts within nvc0_screen_destroy and most likely
other places as well.

The most obvious effect is, that userspace processes take minutes to
actually quit.

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Karol Herbst 2016-09-18 12:21:56 +02:00 committed by Ben Skeggs
parent 666ca3d8f1
commit bad3d80fd0
4 changed files with 5 additions and 1 deletions
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1
drivers/gpu/drm/nouveau/include/nvkm/core/device.h
View File

@ -175,6 +175,7 @@ struct nvkm_device_func {
void (*fini)(struct nvkm_device *, bool suspend);
resource_size_t (*resource_addr)(struct nvkm_device *, unsigned bar);
resource_size_t (*resource_size)(struct nvkm_device *, unsigned bar);
bool cpu_coherent;
};
struct nvkm_device_quirk {

3
drivers/gpu/drm/nouveau/nouveau_bo.c
View File

@ -209,7 +209,8 @@ nouveau_bo_new(struct drm_device *dev, int size, int align,
nvbo->tile_flags = tile_flags;
nvbo->bo.bdev = &drm->ttm.bdev;
nvbo->force_coherent = flags & TTM_PL_FLAG_UNCACHED;
if (!nvxx_device(&drm->device)->func->cpu_coherent)
nvbo->force_coherent = flags & TTM_PL_FLAG_UNCACHED;
nvbo->page_shift = 12;
if (drm->client.vm) {

1
drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c
View File

@ -1614,6 +1614,7 @@ nvkm_device_pci_func = {
.fini = nvkm_device_pci_fini,
.resource_addr = nvkm_device_pci_resource_addr,
.resource_size = nvkm_device_pci_resource_size,
.cpu_coherent = !IS_ENABLED(CONFIG_ARM),
};
int

1
drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
View File

@ -245,6 +245,7 @@ nvkm_device_tegra_func = {
.fini = nvkm_device_tegra_fini,
.resource_addr = nvkm_device_tegra_resource_addr,
.resource_size = nvkm_device_tegra_resource_size,
.cpu_coherent = false,
};
int