In the subject, please use "drm/i915:" as the prefix. Please add a space
after ":".
Please use the imperative style, i.e. "add" instead of "added".
On Wed, 17 Jul 2019, Anshuman Gupta <anshuman.gu...@intel.com> wrote:
> This patch enables dc3co state in enable_dc module param
> and adds dc3co enable mask to allowed_dc_mask and gen9_dc_mask.
Please don't reference "this patch". We know what you're referencing,
and it'll also no longer be a patch once it's committed. Please just use
the imperative style, "Enable dc3co state...".
BR,
Jani.
>
> Cc: jani.nik...@intel.com
> Cc: imre.d...@intel.com
> Cc: animesh.ma...@intel.com
Would be preferrable to include names here as well, for example
Cc: Jani Nikula <jani.nik...@intel.com>
Same things for all patches here.
BR,
Jani.
> Signed-off-by: Anshuman Gupta <anshuman.gu...@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display_power.c | 13 +++++++++++--
> drivers/gpu/drm/i915/i915_params.c | 3 ++-
> 2 files changed, 13 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c
> b/drivers/gpu/drm/i915/display/intel_display_power.c
> index f040a74349df..0dec4d01877f 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -714,6 +714,10 @@ static u32 gen9_dc_mask(struct drm_i915_private
> *dev_priv)
> u32 mask;
>
> mask = DC_STATE_EN_UPTO_DC5;
> +
> + if (INTEL_GEN(dev_priv) == 12)
> + mask |= DC_STATE_EN_DC3CO | DC_STATE_EN_UPTO_DC6
> + | DC_STATE_EN_DC9;
> if (INTEL_GEN(dev_priv) >= 11)
> mask |= DC_STATE_EN_UPTO_DC6 | DC_STATE_EN_DC9;
> else if (IS_GEN9_LP(dev_priv))
> @@ -3943,7 +3947,10 @@ static u32 get_allowed_dc_mask(const struct
> drm_i915_private *dev_priv,
> int requested_dc;
> int max_dc;
>
> - if (INTEL_GEN(dev_priv) >= 11) {
> + if (INTEL_GEN(dev_priv) == 12) {
> + max_dc = 3;
> + mask = DC_STATE_EN_DC9;
> + } else if (INTEL_GEN(dev_priv) >= 11) {
> max_dc = 2;
> /*
> * DC9 has a separate HW flow from the rest of the DC states,
> @@ -3969,7 +3976,7 @@ static u32 get_allowed_dc_mask(const struct
> drm_i915_private *dev_priv,
> requested_dc = enable_dc;
> } else if (enable_dc == -1) {
> requested_dc = max_dc;
> - } else if (enable_dc > max_dc && enable_dc <= 2) {
> + } else if (enable_dc > max_dc && enable_dc <= 3) {
> DRM_DEBUG_KMS("Adjusting requested max DC state (%d->%d)\n",
> enable_dc, max_dc);
> requested_dc = max_dc;
> @@ -3978,6 +3985,8 @@ static u32 get_allowed_dc_mask(const struct
> drm_i915_private *dev_priv,
> requested_dc = max_dc;
> }
>
> + if (requested_dc > 2)
> + mask |= DC_STATE_EN_DC3CO;
> if (requested_dc > 1)
> mask |= DC_STATE_EN_UPTO_DC6;
> if (requested_dc > 0)
> diff --git a/drivers/gpu/drm/i915/i915_params.c
> b/drivers/gpu/drm/i915/i915_params.c
> index 296452f9efe4..7a46dc957660 100644
> --- a/drivers/gpu/drm/i915/i915_params.c
> +++ b/drivers/gpu/drm/i915/i915_params.c
> @@ -46,7 +46,8 @@ i915_param_named(modeset, int, 0400,
>
> i915_param_named_unsafe(enable_dc, int, 0400,
> "Enable power-saving display C-states. "
> - "(-1=auto [default]; 0=disable; 1=up to DC5; 2=up to DC6)");
> + "(-1=auto [default]; 0=disable; 1=up to DC5; 2=up to DC6; "
> + "3=up to DC6 with DC3CO)");
>
> i915_param_named_unsafe(enable_fbc, int, 0600,
> "Enable frame buffer compression for power savings "
--
Jani Nikula, Intel Open Source Graphics Center
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