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drm/tegra: nvdec: 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 13:34:23 +01:00
parent b50ad38d87
commit 2abdd44e31
1 changed files with 4 additions and 12 deletions
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16
drivers/gpu/drm/tegra/nvdec.c
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@@ -67,26 +67,18 @@ static inline void nvdec_writel(struct nvdec *nvdec, u32 value,
static int nvdec_boot_falcon(struct nvdec *nvdec)
{
#ifdef CONFIG_IOMMU_API
struct iommu_fwspec *spec = dev_iommu_fwspec_get(nvdec->dev);
#endif
u32 stream_id;
int err;
#ifdef CONFIG_IOMMU_API
if (nvdec->config->supports_sid && spec) {
if (nvdec->config->supports_sid && tegra_dev_iommu_get_stream_id(nvdec->dev, &stream_id)) {
u32 value;
value = TRANSCFG_ATT(1, TRANSCFG_SID_FALCON) | TRANSCFG_ATT(0, TRANSCFG_SID_HW);
nvdec_writel(nvdec, value, NVDEC_TFBIF_TRANSCFG);
if (spec->num_ids > 0) {
value = spec->ids[0] & 0xffff;
nvdec_writel(nvdec, value, VIC_THI_STREAMID0);
nvdec_writel(nvdec, value, VIC_THI_STREAMID1);
}
nvdec_writel(nvdec, stream_id, VIC_THI_STREAMID0);
nvdec_writel(nvdec, stream_id, VIC_THI_STREAMID1);
}
#endif
err = falcon_boot(&nvdec->falcon);
if (err < 0)