Re: [PATCH v3 2/9] drm/i915/tgl: Add DC3CO mask to allowed_dc_mask and gen9_dc_mask

Animesh Manna <animesh.manna@xxxxxxxxx> · Thu, 1 Aug 2019 10:05:54 +0530

Hi,


On 7/30/2019 7:20 PM, Anshuman Gupta wrote:

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)");
What about DC3co with DC5? User do not an option to enable DC3co with 
upto DC5 enabled.

Regards,
Animesh
  
  i915_param_named_unsafe(enable_fbc, int, 0600,
  	"Enable frame buffer compression for power savings "

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