2010/2/20 Rafał Miłecki <[email protected]>:
> We kept pointers to requested and current clock modes in every power state.
> That was useless, more /global/ pointers in power struct are enough.
>
> Signed-off-by: Rafał Miłecki <[email protected]>
> ---
> As discussed with Alex we will simplify pointers only, without whole struct
> with memcpy. Is this alright Alex?

Looks good.  thanks!

Reviewed-by: Alex Deucher <[email protected]>

>
> Dave: this should apply cleanly after reverting previous version.
> ---
>  drivers/gpu/drm/radeon/radeon.h          |    5 ++---
>  drivers/gpu/drm/radeon/radeon_atombios.c |   20 ++++----------------
>  drivers/gpu/drm/radeon/radeon_combios.c  |    7 ++++---
>  drivers/gpu/drm/radeon/radeon_pm.c       |   30 
> +++++++++++++++---------------
>  4 files changed, 25 insertions(+), 37 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 0ca83ca..fc9044e 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -652,9 +652,6 @@ struct radeon_power_state {
>        struct radeon_pm_clock_info clock_info[8];
>        /* number of valid clock modes in this power state */
>        int num_clock_modes;
> -       /* currently selected clock mode */
> -       struct radeon_pm_clock_info *current_clock_mode;
> -       struct radeon_pm_clock_info *requested_clock_mode;
>        struct radeon_pm_clock_info *default_clock_mode;
>        /* non clock info about this state */
>        struct radeon_pm_non_clock_info non_clock_info;
> @@ -691,7 +688,9 @@ struct radeon_pm {
>        /* number of valid power states */
>        int                     num_power_states;
>        struct radeon_power_state *current_power_state;
> +       struct radeon_pm_clock_info *current_clock_mode;
>        struct radeon_power_state *requested_power_state;
> +       struct radeon_pm_clock_info *requested_clock_mode;
>        struct radeon_power_state *default_power_state;
>  };
>
> diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c 
> b/drivers/gpu/drm/radeon/radeon_atombios.c
> index 79d4453..33aed6c 100644
> --- a/drivers/gpu/drm/radeon/radeon_atombios.c
> +++ b/drivers/gpu/drm/radeon/radeon_atombios.c
> @@ -1450,7 +1450,6 @@ void radeon_atombios_get_power_modes(struct 
> radeon_device *rdev)
>        power_info = (union power_info *)(mode_info->atom_context->bios + 
> data_offset);
>
>        rdev->pm.default_power_state = NULL;
> -       rdev->pm.current_power_state = NULL;
>
>        if (power_info) {
>                if (frev < 4) {
> @@ -1517,11 +1516,8 @@ void radeon_atombios_get_power_modes(struct 
> radeon_device *rdev)
>                                                
> rdev->pm.power_state[state_index].type =
>                                                        
> POWER_STATE_TYPE_DEFAULT;
>                                                rdev->pm.default_power_state = 
> &rdev->pm.power_state[state_index];
> -                                               rdev->pm.current_power_state 
> = &rdev->pm.power_state[state_index];
>                                                
> rdev->pm.power_state[state_index].default_clock_mode =
>                                                        
> &rdev->pm.power_state[state_index].clock_info[0];
> -                                               
> rdev->pm.power_state[state_index].current_clock_mode =
> -                                                       
> &rdev->pm.power_state[state_index].clock_info[0];
>                                        }
>                                        state_index++;
>                                        break;
> @@ -1586,11 +1582,8 @@ void radeon_atombios_get_power_modes(struct 
> radeon_device *rdev)
>                                                
> rdev->pm.power_state[state_index].type =
>                                                        
> POWER_STATE_TYPE_DEFAULT;
>                                                rdev->pm.default_power_state = 
> &rdev->pm.power_state[state_index];
> -                                               rdev->pm.current_power_state 
> = &rdev->pm.power_state[state_index];
>                                                
> rdev->pm.power_state[state_index].default_clock_mode =
>                                                        
> &rdev->pm.power_state[state_index].clock_info[0];
> -                                               
> rdev->pm.power_state[state_index].current_clock_mode =
> -                                                       
> &rdev->pm.power_state[state_index].clock_info[0];
>                                        }
>                                        state_index++;
>                                        break;
> @@ -1661,11 +1654,8 @@ void radeon_atombios_get_power_modes(struct 
> radeon_device *rdev)
>                                                
> rdev->pm.power_state[state_index].type =
>                                                        
> POWER_STATE_TYPE_DEFAULT;
>                                                rdev->pm.default_power_state = 
> &rdev->pm.power_state[state_index];
> -                                               rdev->pm.current_power_state 
> = &rdev->pm.power_state[state_index];
>                                                
> rdev->pm.power_state[state_index].default_clock_mode =
>                                                        
> &rdev->pm.power_state[state_index].clock_info[0];
> -                                               
> rdev->pm.power_state[state_index].current_clock_mode =
> -                                                       
> &rdev->pm.power_state[state_index].clock_info[0];
>                                        }
>                                        state_index++;
>                                        break;
> @@ -1765,11 +1755,8 @@ void radeon_atombios_get_power_modes(struct 
> radeon_device *rdev)
>                                                
> rdev->pm.power_state[state_index].type =
>                                                        
> POWER_STATE_TYPE_DEFAULT;
>                                                rdev->pm.default_power_state = 
> &rdev->pm.power_state[state_index];
> -                                               rdev->pm.current_power_state 
> = &rdev->pm.power_state[state_index];
>                                                
> rdev->pm.power_state[state_index].default_clock_mode =
>                                                        
> &rdev->pm.power_state[state_index].clock_info[mode_index - 1];
> -                                               
> rdev->pm.power_state[state_index].current_clock_mode =
> -                                                       
> &rdev->pm.power_state[state_index].clock_info[mode_index - 1];
>                                        }
>                                        state_index++;
>                                }
> @@ -1788,18 +1775,19 @@ void radeon_atombios_get_power_modes(struct 
> radeon_device *rdev)
>                rdev->pm.power_state[state_index].clock_info[0].sclk = 
> rdev->clock.default_sclk;
>                rdev->pm.power_state[state_index].default_clock_mode =
>                        &rdev->pm.power_state[state_index].clock_info[0];
> -               rdev->pm.power_state[state_index].current_clock_mode =
> -                       &rdev->pm.power_state[state_index].clock_info[0];
>                rdev->pm.power_state[state_index].clock_info[0].voltage.type = 
> VOLTAGE_NONE;
>                if (rdev->asic->get_pcie_lanes)
>                        
> rdev->pm.power_state[state_index].non_clock_info.pcie_lanes = 
> radeon_get_pcie_lanes(rdev);
>                else
>                        
> rdev->pm.power_state[state_index].non_clock_info.pcie_lanes = 16;
>                rdev->pm.default_power_state = 
> &rdev->pm.power_state[state_index];
> -               rdev->pm.current_power_state = 
> &rdev->pm.power_state[state_index];
>                state_index++;
>        }
>        rdev->pm.num_power_states = state_index;
> +
> +       rdev->pm.current_power_state = rdev->pm.default_power_state;
> +       rdev->pm.current_clock_mode =
> +               rdev->pm.default_power_state->default_clock_mode;
>  }
>
>  void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable)
> diff --git a/drivers/gpu/drm/radeon/radeon_combios.c 
> b/drivers/gpu/drm/radeon/radeon_combios.c
> index 5ef791b..69af81d 100644
> --- a/drivers/gpu/drm/radeon/radeon_combios.c
> +++ b/drivers/gpu/drm/radeon/radeon_combios.c
> @@ -2358,7 +2358,6 @@ void radeon_combios_get_power_modes(struct 
> radeon_device *rdev)
>        int state_index = 0;
>
>        rdev->pm.default_power_state = NULL;
> -       rdev->pm.current_power_state = NULL;
>
>        if (rdev->flags & RADEON_IS_MOBILITY) {
>                offset = combios_get_table_offset(dev, 
> COMBIOS_POWERPLAY_INFO_TABLE);
> @@ -2447,15 +2446,17 @@ default_mode:
>        rdev->pm.power_state[state_index].clock_info[0].mclk = 
> rdev->clock.default_mclk;
>        rdev->pm.power_state[state_index].clock_info[0].sclk = 
> rdev->clock.default_sclk;
>        rdev->pm.power_state[state_index].default_clock_mode = 
> &rdev->pm.power_state[state_index].clock_info[0];
> -       rdev->pm.power_state[state_index].current_clock_mode = 
> &rdev->pm.power_state[state_index].clock_info[0];
>        rdev->pm.power_state[state_index].clock_info[0].voltage.type = 
> VOLTAGE_NONE;
>        if (rdev->asic->get_pcie_lanes)
>                rdev->pm.power_state[state_index].non_clock_info.pcie_lanes = 
> radeon_get_pcie_lanes(rdev);
>        else
>                rdev->pm.power_state[state_index].non_clock_info.pcie_lanes = 
> 16;
>        rdev->pm.default_power_state = &rdev->pm.power_state[state_index];
> -       rdev->pm.current_power_state = &rdev->pm.power_state[state_index];
>        rdev->pm.num_power_states = state_index + 1;
> +
> +       rdev->pm.current_power_state = rdev->pm.default_power_state;
> +       rdev->pm.current_clock_mode =
> +               rdev->pm.default_power_state->default_clock_mode;
>  }
>
>  void radeon_external_tmds_setup(struct drm_encoder *encoder)
> diff --git a/drivers/gpu/drm/radeon/radeon_pm.c 
> b/drivers/gpu/drm/radeon/radeon_pm.c
> index 6dbfdf4..8960acf 100644
> --- a/drivers/gpu/drm/radeon/radeon_pm.c
> +++ b/drivers/gpu/drm/radeon/radeon_pm.c
> @@ -143,50 +143,50 @@ static void radeon_get_power_state(struct radeon_device 
> *rdev,
>                                   enum radeon_pm_action action)
>  {
>        switch (action) {
> -       case PM_ACTION_NONE:
> -       default:
> -               rdev->pm.requested_power_state = rdev->pm.current_power_state;
> -               rdev->pm.requested_power_state->requested_clock_mode =
> -                       rdev->pm.requested_power_state->current_clock_mode;
> -               break;
>        case PM_ACTION_MINIMUM:
>                rdev->pm.requested_power_state = radeon_pick_power_state(rdev, 
> POWER_STATE_TYPE_BATTERY);
> -               rdev->pm.requested_power_state->requested_clock_mode =
> +               rdev->pm.requested_clock_mode =
>                        radeon_pick_clock_mode(rdev, 
> rdev->pm.requested_power_state, POWER_MODE_TYPE_LOW);
>                break;
>        case PM_ACTION_DOWNCLOCK:
>                rdev->pm.requested_power_state = radeon_pick_power_state(rdev, 
> POWER_STATE_TYPE_POWERSAVE);
> -               rdev->pm.requested_power_state->requested_clock_mode =
> +               rdev->pm.requested_clock_mode =
>                        radeon_pick_clock_mode(rdev, 
> rdev->pm.requested_power_state, POWER_MODE_TYPE_MID);
>                break;
>        case PM_ACTION_UPCLOCK:
>                rdev->pm.requested_power_state = radeon_pick_power_state(rdev, 
> POWER_STATE_TYPE_DEFAULT);
> -               rdev->pm.requested_power_state->requested_clock_mode =
> +               rdev->pm.requested_clock_mode =
>                        radeon_pick_clock_mode(rdev, 
> rdev->pm.requested_power_state, POWER_MODE_TYPE_HIGH);
>                break;
> +       case PM_ACTION_NONE:
> +       default:
> +               DRM_ERROR("Requested mode for not defined action\n");
> +               return;
>        }
>        DRM_INFO("Requested: e: %d m: %d p: %d\n",
> -                rdev->pm.requested_power_state->requested_clock_mode->sclk,
> -                rdev->pm.requested_power_state->requested_clock_mode->mclk,
> +                rdev->pm.requested_clock_mode->sclk,
> +                rdev->pm.requested_clock_mode->mclk,
>                 rdev->pm.requested_power_state->non_clock_info.pcie_lanes);
>  }
>
>  static void radeon_set_power_state(struct radeon_device *rdev)
>  {
> -       if (rdev->pm.requested_power_state == rdev->pm.current_power_state)
> +       /* if *_clock_mode are the same, *_power_state are as well */
> +       if (rdev->pm.requested_clock_mode == rdev->pm.current_clock_mode)
>                return;
>
>        DRM_INFO("Setting: e: %d m: %d p: %d\n",
> -                rdev->pm.requested_power_state->requested_clock_mode->sclk,
> -                rdev->pm.requested_power_state->requested_clock_mode->mclk,
> +                rdev->pm.requested_clock_mode->sclk,
> +                rdev->pm.requested_clock_mode->mclk,
>                 rdev->pm.requested_power_state->non_clock_info.pcie_lanes);
>        /* set pcie lanes */
>        /* set voltage */
>        /* set engine clock */
> -       radeon_set_engine_clock(rdev, 
> rdev->pm.requested_power_state->requested_clock_mode->sclk);
> +       radeon_set_engine_clock(rdev, rdev->pm.requested_clock_mode->sclk);
>        /* set memory clock */
>
>        rdev->pm.current_power_state = rdev->pm.requested_power_state;
> +       rdev->pm.current_clock_mode = rdev->pm.requested_clock_mode;
>  }
>
>  int radeon_pm_init(struct radeon_device *rdev)
> --
> 1.6.4.2
>
>
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