On Mon, 2016-04-18 at 14:02 +0300, ville.syrj...@linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> Currently we're using POWER_DOMAIN_MASK as the power domains for the
> display power well on VLV/CHV. That includes all power domains even
> though the disp2d/pipe-a power well is not needed for a lot of
> things.
> Let's reduce these to what we actually need.
>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Ok, so this mostly removes domains that are not defined on the given
platform and so shouldn't be requested. (Btw, the always-on well will
be different now in this regard after patch 1, since for that we also
include the not-defined domains, but I think that's ok.) The modeset
domain is the exception which may power things atm unnecessarily. Looks
ok:
Reviewed-by: Imre Deak <imre.d...@intel.com>
> ---
> drivers/gpu/drm/i915/intel_runtime_pm.c | 42
> +++++++++++++++++++++++++++++++--
> 1 file changed, 40 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
> b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index fe63d77b7dfb..585bbe7cefa6 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -1615,7 +1615,23 @@ void intel_display_power_put(struct
> drm_i915_private *dev_priv,
> (POWER_DOMAIN_MASK & ~BDW_ALWAYS_ON_POWER_DOMAINS) |
> \
> BIT(POWER_DOMAIN_INIT))
>
> -#define VLV_DISPLAY_POWER_DOMAINS POWER_DOMAIN_MASK
> +#define VLV_DISPLAY_POWER_DOMAINS ( \
> + BIT(POWER_DOMAIN_PIPE_A) | \
> + BIT(POWER_DOMAIN_PIPE_B) | \
> + BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
> + BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
> + BIT(POWER_DOMAIN_TRANSCODER_A) | \
> + BIT(POWER_DOMAIN_TRANSCODER_B) | \
> + BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
> + BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
> + BIT(POWER_DOMAIN_PORT_DSI) | \
> + BIT(POWER_DOMAIN_PORT_CRT) | \
> + BIT(POWER_DOMAIN_VGA) | \
> + BIT(POWER_DOMAIN_AUDIO) | \
> + BIT(POWER_DOMAIN_AUX_B) | \
> + BIT(POWER_DOMAIN_AUX_C) | \
> + BIT(POWER_DOMAIN_GMBUS) | \
> + BIT(POWER_DOMAIN_INIT))
>
> #define VLV_DPIO_CMN_BC_POWER_DOMAINS ( \
> BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
> @@ -1645,6 +1661,28 @@ void intel_display_power_put(struct
> drm_i915_private *dev_priv,
> BIT(POWER_DOMAIN_AUX_C) | \
> BIT(POWER_DOMAIN_INIT))
>
> +#define CHV_DISPLAY_POWER_DOMAINS ( \
> + BIT(POWER_DOMAIN_PIPE_A) | \
> + BIT(POWER_DOMAIN_PIPE_B) | \
> + BIT(POWER_DOMAIN_PIPE_C) | \
> + BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
> + BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
> + BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
> + BIT(POWER_DOMAIN_TRANSCODER_A) | \
> + BIT(POWER_DOMAIN_TRANSCODER_B) | \
> + BIT(POWER_DOMAIN_TRANSCODER_C) | \
> + BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
> + BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
> + BIT(POWER_DOMAIN_PORT_DDI_D_LANES) | \
> + BIT(POWER_DOMAIN_PORT_DSI) | \
> + BIT(POWER_DOMAIN_VGA) | \
> + BIT(POWER_DOMAIN_AUDIO) | \
> + BIT(POWER_DOMAIN_AUX_B) | \
> + BIT(POWER_DOMAIN_AUX_C) | \
> + BIT(POWER_DOMAIN_AUX_D) | \
> + BIT(POWER_DOMAIN_GMBUS) | \
> + BIT(POWER_DOMAIN_INIT))
> +
> #define CHV_DPIO_CMN_BC_POWER_DOMAINS ( \
> BIT(POWER_DOMAIN_PORT_DDI_B_LANES) | \
> BIT(POWER_DOMAIN_PORT_DDI_C_LANES) | \
> @@ -1829,7 +1867,7 @@ static struct i915_power_well chv_power_wells[]
> = {
> * power wells don't actually exist. Pipe A power
> well is
> * required for any pipe to work.
> */
> - .domains = VLV_DISPLAY_POWER_DOMAINS,
> + .domains = CHV_DISPLAY_POWER_DOMAINS,
> .data = PIPE_A,
> .ops = &chv_pipe_power_well_ops,
> },
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