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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
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sachit Kadle
2017-01-24 10:22:13 -08:00
committed by mobile promotions
parent 0eb5255e54
commit f871b52fd3
6 changed files with 183 additions and 7 deletions
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10
include/linux/tegra_vgpu.h
View File

@@ -102,6 +102,8 @@ 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,
};
struct tegra_vgpu_connect_params {
@@ -469,6 +471,13 @@ struct tegra_vgpu_clear_sm_error_state {
u32 sm_id;
};
#define TEGRA_VGPU_GPU_FREQ_TABLE_SIZE 25
struct tegra_vgpu_get_gpu_freq_table_params {
u32 num_freqs; /* in/out */
u32 freqs[TEGRA_VGPU_GPU_FREQ_TABLE_SIZE]; /* in kHz */
};
struct tegra_vgpu_cmd_msg {
u32 cmd;
int ret;
@@ -518,6 +527,7 @@ struct tegra_vgpu_cmd_msg {
struct tegra_vgpu_suspend_resume_contexts suspend_contexts;
struct tegra_vgpu_suspend_resume_contexts resume_contexts;
struct tegra_vgpu_clear_sm_error_state clear_sm_error_state;
struct tegra_vgpu_get_gpu_freq_table_params get_gpu_freq_table;
char padding[192];
} params;
};