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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.

Bug 200768479

Signed-off-by: Thierry Reding <treding@nvidia.com>
Change-Id: Ia2efe2b77b5043b665bae403d9eba4698e6a5228
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2596399
(cherry picked from commit d23156d94fa9499256e8082250e3bc02559f9c8d)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2620152
Tested-by: Jonathan Hunter <jonathanh@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Thierry Reding
2020-02-07 16:50:52 +01:00
committed by Laxman Dewangan
parent d802ae96a7
commit 2a938c39ec
5 changed files with 125 additions and 12 deletions
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1
drivers/gpu/host1x/dev.h
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@@ -151,6 +151,7 @@ struct host1x {
struct device_dma_parameters dma_parms;
struct host1x_bo_cache cache;
struct host1x_uapi uapi;
};