From a4facf80f2df7ebd51d512c4091ab8df24bb71c9 Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Tue, 8 Nov 2016 12:29:50 +0100 Subject: drivers/intel/gma: Use scaling to simplify fb config Utilize libgfxinit's support for scaling to simplify the framebuffer configuration. In case of multiple displays of different resolutions, we had configured one framebuffer big enough for their union, each display only showing its respective upper left window. Instead, we use the smallest resolution now and show the whole image on all displays. Change-Id: I70a9d92f88ef891703829945264f94ac7eff09b0 Signed-off-by: Nico Huber Reviewed-on: https://review.coreboot.org/17492 Reviewed-by: Paul Menzel Reviewed-by: Ronald G. Minnich Tested-by: build bot (Jenkins) --- src/drivers/intel/gma/hires_fb/gma.adb | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-) (limited to 'src/drivers/intel/gma/hires_fb/gma.adb') diff --git a/src/drivers/intel/gma/hires_fb/gma.adb b/src/drivers/intel/gma/hires_fb/gma.adb index 7ebc4f88bc..87e0900981 100644 --- a/src/drivers/intel/gma/hires_fb/gma.adb +++ b/src/drivers/intel/gma/hires_fb/gma.adb @@ -59,9 +59,8 @@ is success : boolean; - stride : Width_Type; - max_h : pos16 := 1; - max_v : pos16 := 1; + min_h : pos16 := pos16'last; + min_v : pos16 := pos16'last; begin lightup_ok := 0; @@ -77,30 +76,24 @@ is for i in Config_Index loop exit when configs (i).Port = Disabled; - max_h := pos16'max (max_h, configs (i).Mode.H_Visible); - max_v := pos16'max (max_v, configs (i).Mode.V_Visible); + min_h := pos16'min (min_h, configs (i).Mode.H_Visible); + min_v := pos16'min (min_v, configs (i).Mode.V_Visible); end loop; - stride := ((Width_Type (max_h) + 63) / 64) * 64; + fb := + (Width => Width_Type (min_h), + Height => Height_Type (min_v), + BPC => 8, + Stride => ((Width_Type (min_h) + 63) / 64) * 64, + Offset => 0); for i in Config_Index loop exit when configs (i).Port = Disabled; - configs (i).Framebuffer := - (Width => Width_Type (configs (i).Mode.H_Visible), - Height => Height_Type (configs (i).Mode.V_Visible), - BPC => 8, - Stride => stride, - Offset => 0); + configs (i).Framebuffer := fb; end loop; HW.GFX.GMA.Dump_Configs (configs); - fb := - (Width => Width_Type (max_h), - Height => Height_Type (max_v), - BPC => 8, - Stride => stride, - Offset => 0); HW.GFX.GMA.Setup_Default_GTT (fb, phys_fb); HW.GFX.Framebuffer_Filler.Fill (linear_fb, fb); -- cgit v1.2.3