drivers/media/platform/qcom/venus/pm_helpers.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (C) 2019 Linaro Ltd. */
   3 #ifndef __VENUS_PM_HELPERS_H__
   4 #define __VENUS_PM_HELPERS_H__
   5
   6 struct device;
   7
   8 #define POWER_ON        1
   9 #define POWER_OFF       0
  10
  11 struct venus_pm_ops {
  12         int (*core_get)(struct device *dev);
  13         void (*core_put)(struct device *dev);
  14         int (*core_power)(struct device *dev, int on);
  15
  16         int (*vdec_get)(struct device *dev);
  17         void (*vdec_put)(struct device *dev);
  18         int (*vdec_power)(struct device *dev, int on);
  19
  20         int (*venc_get)(struct device *dev);
  21         void (*venc_put)(struct device *dev);
  22         int (*venc_power)(struct device *dev, int on);
  23
  24         int (*coreid_power)(struct venus_inst *inst, int on);
  25
  26         int (*load_scale)(struct venus_inst *inst);
  27 };
  28
  29 const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
  30
  31 static inline int venus_pm_load_scale(struct venus_inst *inst)
  32 {
  33         struct venus_core *core = inst->core;
  34
  35         if (!core->pm_ops || !core->pm_ops->load_scale)
  36                 return 0;
  37
  38         return core->pm_ops->load_scale(inst);
  39 }
  40
  41 static inline int venus_pm_acquire_core(struct venus_inst *inst)
  42 {
  43         struct venus_core *core = inst->core;
  44         const struct venus_pm_ops *pm_ops = core->pm_ops;
  45         int ret = 0;
  46
  47         if (pm_ops && pm_ops->coreid_power)
  48                 ret = pm_ops->coreid_power(inst, POWER_ON);
  49
  50         return ret;
  51 }
  52
  53 static inline int venus_pm_release_core(struct venus_inst *inst)
  54 {
  55         struct venus_core *core = inst->core;
  56         const struct venus_pm_ops *pm_ops = core->pm_ops;
  57         int ret = 0;
  58
  59         if (pm_ops && pm_ops->coreid_power)
  60                 ret = pm_ops->coreid_power(inst, POWER_OFF);
  61
  62         return ret;
  63 }
  64
  65 #endif