nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-22 17:25:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: host1x: Select context device based on attached IOMMU

Browse Source 
On Tegra234, engines that are programmed through Host1x channels can
be attached to either the NISO0 or NISO1 SMMU. Because of that, when
selecting a context device to use with an engine, we need to select
one that is also attached to the same SMMU.

Add a parameter to host1x_memory_context_alloc to specify which device
we are allocating a context for, and use it to pick an appropriate
context device.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Change-Id: I32af312c85164b72c14409d816d3b50ad5c7bfe5
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2811836
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Mikko Perttunen
2022-09-07 11:38:42 +03:00
committed by Laxman Dewangan
parent 93006031b9
commit e1b1afaab1
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/tegra/uapi.c
View File

@@ -116,7 +116,7 @@ int tegra_drm_ioctl_channel_open(struct drm_device *drm, void *data, struct drm_
if (supported) if (supported)
context->memory_context = host1x_memory_context_alloc( context->memory_context = host1x_memory_context_alloc(
host, get_task_pid(current, PIDTYPE_TGID)); host, client->base.dev, get_task_pid(current, PIDTYPE_TGID));
if (IS_ERR(context->memory_context)) { if (IS_ERR(context->memory_context)) {
if (PTR_ERR(context->memory_context) != -EOPNOTSUPP) { if (PTR_ERR(context->memory_context) != -EOPNOTSUPP) {