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gpu: nvgpu: vgpu: add devfreq support

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Add devfreq governor support in order to allow frequency scaling
in virtualization config. GPU clock frequency operations are
re-directed to the server over RPC.

Bug 200237433

Change-Id: I1c8e565a4fff36d3456dc72ebb20795b7822650e
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1295542
(cherry picked from commit d5c956fc06697eda3829c67cb22987e538213b29)
Reviewed-on: http://git-master/r/1280968
(cherry picked from commit 25e2b3cf7cb5559a6849c0024d42c157564a9be2)
Reviewed-on: http://git-master/r/1321835
(cherry picked from commit f871b52fd3)
Reviewed-on: http://git-master/r/1313468
Tested-by: Aparna Das <aparnad@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Sachit Kadle
2017-01-24 10:22:13 -08:00
committed by mobile promotions
parent 2535c81c6c
commit b3a7c2b305
6 changed files with 216 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
include/linux/tegra_vgpu.h
View File

@@ -100,6 +100,8 @@ enum {
TEGRA_VGPU_CMD_SUSPEND_CONTEXTS = 66,
TEGRA_VGPU_CMD_RESUME_CONTEXTS = 67,
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_PROF_MGT = 72,
TEGRA_VGPU_CMD_GET_TIMESTAMPS_ZIPPER = 74,
};
@@ -485,6 +487,13 @@ struct tegra_vgpu_prof_mgt_params {
u32 mode;
};
#define TEGRA_VGPU_GPU_FREQ_TABLE_SIZE 25
struct tegra_vgpu_get_gpu_freq_table_params {
u32 num_freqs;
u32 freqs[TEGRA_VGPU_GPU_FREQ_TABLE_SIZE]; /* in kHz */
};
struct tegra_vgpu_cmd_msg {
u32 cmd;
int ret;
@@ -536,6 +545,7 @@ struct tegra_vgpu_cmd_msg {
struct tegra_vgpu_clear_sm_error_state clear_sm_error_state;
struct tegra_vgpu_prof_mgt_params prof_management;
struct tegra_vgpu_get_timestamps_zipper_params get_timestamps_zipper;
struct tegra_vgpu_get_gpu_freq_table_params get_gpu_freq_table;
char padding[192];
} params;
};