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gpu: host1x: Use tegra_dev_iommu_get_stream_id()

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Use the newly implemented tegra_dev_iommu_get_stream_id() helper to
encapsulate and centralize the IOMMU stream ID access.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2022-11-17 13:36:19 +01:00
parent 900cd8f065
commit 9026ba7223
2 changed files with 7 additions and 13 deletions
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8
drivers/gpu/host1x/context.c
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@@ -35,8 +35,6 @@ int host1x_memory_context_list_init(struct host1x *host1x)
cdl->len = err / 4;
for (i = 0; i < cdl->len; i++) {
struct iommu_fwspec *fwspec;
ctx = &cdl->devs[i];
ctx->host = host1x;
@@ -70,14 +68,12 @@ int host1x_memory_context_list_init(struct host1x *host1x)
goto del_devices;
}
fwspec = dev_iommu_fwspec_get(&ctx->dev);
if (!fwspec || !device_iommu_mapped(&ctx->dev)) {
if (!tegra_dev_iommu_get_stream_id(&ctx->dev, &ctx->stream_id) ||
!device_iommu_mapped(&ctx->dev)) {
dev_err(host1x->dev, "Context device %d has no IOMMU!\n", i);
device_del(&ctx->dev);
goto del_devices;
}
ctx->stream_id = fwspec->ids[0] & 0xffff;
}
return 0;