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drm/amd/display: fix split viewport rounding error

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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>
This commit is contained in:
Dmytro Laktyushkin 2017-11-10 13:53:53 -05:00 committed by Alex Deucher
parent 30ec2b9717
commit 16fb754a29
2 changed files with 8 additions and 6 deletions
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4
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
View File

@ -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);

10
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -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;