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authorDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>2017-11-10 13:53:53 -0500
committerAlex Deucher <alexander.deucher@amd.com>2017-11-28 17:55:10 -0500
commit16fb754a294d25f4077e1f475d930c22698f442a (patch)
tree5e03ecec0a05ddf4bf65fbb2bac569d19b542fb1
parent30ec2b9717c1c6616332f8ce7c0cb3dd72032a2e (diff)
downloadlinux-tile-16fb754a294d25f4077e1f475d930c22698f442a.tar.gz
drm/amd/display: fix split viewport rounding error
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c4
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_resource.c10
2 files changed, 8 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
index 3dce35e66b091..983987f7c9835 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -890,6 +890,10 @@ bool dcn_validate_bandwidth(
+ pipe->bottom_pipe->plane_res.scl_data.recout.width;
}
+ ASSERT(pipe->plane_res.scl_data.ratios.horz.value != dal_fixed31_32_one.value
+ || v->scaler_rec_out_width[input_idx] == v->viewport_width[input_idx]);
+ ASSERT(pipe->plane_res.scl_data.ratios.vert.value != dal_fixed31_32_one.value
+ || v->scaler_recout_height[input_idx] == v->viewport_height[input_idx]);
v->dcc_enable[input_idx] = pipe->plane_state->dcc.enable ? dcn_bw_yes : dcn_bw_no;
v->source_pixel_format[input_idx] = tl_pixel_format_to_bw_defs(
pipe->plane_state->format);
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 1cd15d1cc3f41..655e08df48a01 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -516,13 +516,11 @@ static void calculate_viewport(struct pipe_ctx *pipe_ctx)
right_view = (plane_state->rotation == ROTATION_ANGLE_270) != sec_split;
if (right_view) {
- data->viewport.width /= 2;
- data->viewport_c.width /= 2;
- data->viewport.x += data->viewport.width;
- data->viewport_c.x += data->viewport_c.width;
+ data->viewport.x += data->viewport.width / 2;
+ data->viewport_c.x += data->viewport_c.width / 2;
/* Ceil offset pipe */
- data->viewport.width += data->viewport.width % 2;
- data->viewport_c.width += data->viewport_c.width % 2;
+ data->viewport.width = (data->viewport.width + 1) / 2;
+ data->viewport_c.width = (data->viewport_c.width + 1) / 2;
} else {
data->viewport.width /= 2;
data->viewport_c.width /= 2;