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| author | Debarshi Dutta <ddutta@nvidia.com> | 2022-01-30 21:43:19 -0500 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2022-02-02 15:10:51 -0500 |
| commit | 46b43d2b2485233397f4f62b9bac6d35434b7aea (patch) | |
| tree | 3a0c2b31daf2f8d65123f0aaee4d0af182cbbf3c /drivers/gpu/nvgpu/channel_t19x.h | |
| parent | de418f6ef634220194514a72db332d9fba350856 (diff) | |
gpu: nvgpu: add support for disabling l3 via DT
On volta the GPU determines whether to do L3 allocation for a mapping by
checking bit 36 of the physical address. So if a mapping should allocate lines
in the L3 this bit must be set.
However, when the physical addresses for 64GB of RAM uses the 36th bit
resulting in a conflict. Thus, add support for disabling l3 support
for SKUs having 64GB of physical memory.
Bug 3486025
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Change-Id: Ic540e754274cf1d9e6625493962699d21509e540
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2661548
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Tested-by: Brad Griffis <bgriffis@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/gpu/nvgpu/channel_t19x.h')
0 files changed, 0 insertions, 0 deletions