diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4459-drm-amd-display-truncate-scaling-ratios-and-inits-to.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4459-drm-amd-display-truncate-scaling-ratios-and-inits-to.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4459-drm-amd-display-truncate-scaling-ratios-and-inits-to.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4459-drm-amd-display-truncate-scaling-ratios-and-inits-to.patch new file mode 100644 index 00000000..1ec12351 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4459-drm-amd-display-truncate-scaling-ratios-and-inits-to.patch @@ -0,0 +1,62 @@ +From 0f0c02ca8ccb66fe6b834c9e8e7b8338be5d2600 Mon Sep 17 00:00:00 2001 +From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Date: Wed, 18 Apr 2018 14:19:23 -0400 +Subject: [PATCH 4459/5725] drm/amd/display: truncate scaling ratios and inits + to 19 bit precision + +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> +--- + drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 25 +++++++++++++++-------- + 1 file changed, 17 insertions(+), 8 deletions(-) + +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 68c1a99..f02f366 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +@@ -651,6 +651,14 @@ static void calculate_scaling_ratios(struct pipe_ctx *pipe_ctx) + pipe_ctx->plane_res.scl_data.ratios.horz_c.value /= 2; + pipe_ctx->plane_res.scl_data.ratios.vert_c.value /= 2; + } ++ pipe_ctx->plane_res.scl_data.ratios.horz = dc_fixpt_truncate( ++ pipe_ctx->plane_res.scl_data.ratios.horz, 19); ++ pipe_ctx->plane_res.scl_data.ratios.vert = dc_fixpt_truncate( ++ pipe_ctx->plane_res.scl_data.ratios.vert, 19); ++ pipe_ctx->plane_res.scl_data.ratios.horz_c = dc_fixpt_truncate( ++ pipe_ctx->plane_res.scl_data.ratios.horz_c, 19); ++ pipe_ctx->plane_res.scl_data.ratios.vert_c = dc_fixpt_truncate( ++ pipe_ctx->plane_res.scl_data.ratios.vert_c, 19); + } + + static void calculate_inits_and_adj_vp(struct pipe_ctx *pipe_ctx, struct view *recout_skip) +@@ -687,17 +695,18 @@ static void calculate_inits_and_adj_vp(struct pipe_ctx *pipe_ctx, struct view *r + * init_bot = init + scaling_ratio + * init_c = init + truncated_vp_c_offset(from calculate viewport) + */ +- data->inits.h = dc_fixpt_div_int( +- dc_fixpt_add_int(data->ratios.horz, data->taps.h_taps + 1), 2); ++ data->inits.h = dc_fixpt_truncate(dc_fixpt_div_int( ++ dc_fixpt_add_int(data->ratios.horz, data->taps.h_taps + 1), 2), 19); + +- data->inits.h_c = dc_fixpt_add(data->inits.h_c, dc_fixpt_div_int( +- dc_fixpt_add_int(data->ratios.horz_c, data->taps.h_taps_c + 1), 2)); ++ data->inits.h_c = dc_fixpt_truncate(dc_fixpt_add(data->inits.h_c, dc_fixpt_div_int( ++ dc_fixpt_add_int(data->ratios.horz_c, data->taps.h_taps_c + 1), 2)), 19); + +- data->inits.v = dc_fixpt_div_int( +- dc_fixpt_add_int(data->ratios.vert, data->taps.v_taps + 1), 2); ++ data->inits.v = dc_fixpt_truncate(dc_fixpt_div_int( ++ dc_fixpt_add_int(data->ratios.vert, data->taps.v_taps + 1), 2), 19); ++ ++ data->inits.v_c = dc_fixpt_truncate(dc_fixpt_add(data->inits.v_c, dc_fixpt_div_int( ++ dc_fixpt_add_int(data->ratios.vert_c, data->taps.v_taps_c + 1), 2)), 19); + +- data->inits.v_c = dc_fixpt_add(data->inits.v_c, dc_fixpt_div_int( +- dc_fixpt_add_int(data->ratios.vert_c, data->taps.v_taps_c + 1), 2)); + + + /* Adjust for viewport end clip-off */ +-- +2.7.4 + |