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gpu: nvgpu: vgpu: add freq capping support

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Currently callbacks from the PM_QOS framework (for
thermal events), result in a RPC call to set GPU frequency.

Since the governor will now be responsible for setting desired
rate, the max PM_QOS callback will now cap the possible
GPU frequency w/ a new RPC call to the server. The server
is responsible for setting the ultimate frequency
based on the cap & desired rates.

Jira VFND-3699

Change-Id: I806e309c40abc2f1381b6a23f2d898cfe26f9794
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1295543
(cherry picked from commit e81693c6e087f8f10a985be83715042fc590d6db)
Reviewed-on: http://git-master/r/1282467
(cherry picked from commit 7b4e0db647572e82a8d53e823c36b465781f4942)
Reviewed-on: http://git-master/r/1321836
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sachit Kadle
2017-01-09 17:34:14 -08:00
committed by mobile promotions
parent f871b52fd3
commit 57dafc08a5
4 changed files with 30 additions and 12 deletions
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include/linux/tegra_vgpu.h
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@@ -104,6 +104,7 @@ enum {
TEGRA_VGPU_CMD_CLEAR_SM_ERROR_STATE = 68,
TEGRA_VGPU_CMD_GET_GPU_CLK_RATE = 69,
TEGRA_VGPU_CMD_GET_GPU_FREQ_TABLE = 70,
TEGRA_VGPU_CMD_CAP_GPU_CLK_RATE = 71,
};
struct tegra_vgpu_connect_params {