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drm/tegra: Implement buffer object cache

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This cache is used to avoid mapping and unmapping buffer objects
unnecessarily. Mappings are cached per client and stay hot until
the buffer object is destroyed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2020-02-07 16:50:52 +01:00
parent c6aeaf56f4
commit 1f39b1dfa5
9 changed files with 141 additions and 17 deletions
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2
drivers/gpu/drm/tegra/uapi.c
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@@ -201,7 +201,7 @@ int tegra_drm_ioctl_channel_map(struct drm_device *drm, void *data, struct drm_f
goto put_gem;
}
mapping->map = host1x_bo_pin(context->client->base.dev, mapping->bo, direction);
mapping->map = host1x_bo_pin(context->client->base.dev, mapping->bo, direction, NULL);
if (IS_ERR(mapping->map)) {
err = PTR_ERR(mapping->map);
goto put_gem;