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gpu: nvgpu: MSCG support

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- Added enable_mscg, mscg_enabled & mscg_stat flags,
  mscg_enabled flag can be used to controll
  mscg enable/disable at runtime along with mscg_stat flag.
- Added defines & interface to support ms/mclk-change/post-init-param
- Added defines for lpwr tables read  from vbios.
- HAL to support post init param which is require
  to setup clockgating interface in PMU & interfaces used during
  mscg state machine.
- gk20a_pmu_pg_global_enable() can be called when pg support
  required to enable/disable, this also checks & wait
  if pstate switch is in progress till it complets
- pg_mutex to protect PG-RPPG/MSCG enable/disable

JIRA DNVGPU-71

Change-Id: If312cefc888a4de0a5c96898baeaac1a76e53e46
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1247554
(cherry picked from commit e6c94948b8058ba642ea56677ad798fc56b8a28a)
Reviewed-on: http://git-master/r/1270971
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Mahantesh Kumbar
2016-11-03 21:10:24 +05:30
committed by mobile promotions
parent 66ed536fb5
commit 71fbfdb2b8
10 changed files with 166 additions and 35 deletions
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2
drivers/gpu/nvgpu/nvgpu_common.c
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@@ -89,6 +89,8 @@ static void nvgpu_init_pm_vars(struct gk20a *g)
tegra_platform_is_silicon() ? platform->enable_elpg : false;
g->aelpg_enabled =
tegra_platform_is_silicon() ? platform->enable_aelpg : false;
g->mscg_enabled =
tegra_platform_is_silicon() ? platform->enable_mscg : false;
/* set default values to aelpg parameters */
g->pmu.aelpg_param[0] = APCTRL_SAMPLING_PERIOD_PG_DEFAULT_US;