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drm/amd/display: Add custom segmentation support

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[WHY]
Add support for uneven segmentation size

[HOW]
Currently width + x_start is automatically calculated using
slice index + dividing stream into equally sized segments.
Add override variables for dst_rect width and x

Reviewed-by: Samson Tam <samson.tam@amd.com>
Signed-off-by: Brendan Steve Leder <BrendanSteve.Leder@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Brendan Steve Leder 2025-03-14 14:32:31 -04:00 committed by Alex Deucher
parent f948770387
commit 428ac7ce7f
2 changed files with 13 additions and 6 deletions
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17
drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c
View File

@ -196,7 +196,12 @@ static struct spl_rect calculate_mpc_slice_in_timing_active(
int epimo = mpc_slice_count - plane_clip_rec->width % mpc_slice_count - 1;
struct spl_rect mpc_rec;
if (use_recout_width_aligned) {
if (spl_in->basic_in.custom_width != 0) {
mpc_rec.width = spl_in->basic_in.custom_width;
mpc_rec.x = spl_in->basic_in.custom_x;
mpc_rec.height = plane_clip_rec->height;
mpc_rec.y = plane_clip_rec->y;
} else if (use_recout_width_aligned) {
mpc_rec.width = recout_width_align;
if ((mpc_rec.width * (mpc_slice_idx + 1)) > plane_clip_rec->width) {
mpc_rec.width = plane_clip_rec->width % recout_width_align;
@ -219,7 +224,7 @@ static struct spl_rect calculate_mpc_slice_in_timing_active(
/* extra pixels in the division remainder need to go to pipes after
* the extra pixel index minus one(epimo) defined here as:
*/
if (mpc_slice_idx > epimo) {
if (mpc_slice_idx > epimo && spl_in->basic_in.custom_width == 0) {
mpc_rec.x += mpc_slice_idx - epimo - 1;
mpc_rec.width += 1;
}
@ -252,10 +257,10 @@ static struct spl_rect calculate_odm_slice_in_timing_active(struct spl_in *spl_i
odm_rec.x = odm_slice_width * odm_slice_idx;
odm_rec.width = is_last_odm_slice ?
/* last slice width is the reminder of h_active */
h_active - odm_slice_width * (odm_slice_count - 1) :
/* odm slice width is the floor of h_active / count */
odm_slice_width;
/* last slice width is the reminder of h_active */
h_active - odm_slice_width * (odm_slice_count - 1) :
/* odm slice width is the floor of h_active / count */
odm_slice_width;
odm_rec.y = 0;
odm_rec.height = v_active;

2
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_types.h
View File

@ -460,6 +460,8 @@ struct basic_in {
enum spl_color_space color_space; // Color Space
unsigned int max_luminance; // Max Luminance TODO: Is determined in dc_hw_sequencer.c is_sdr
bool film_grain_applied; // Film Grain Applied // TODO: To check from where to get this?
int custom_width; // Width for non-standard segmentation - used when != 0
int custom_x; // Start x for non-standard segmentation - used when custom_width != 0
};
// Basic output information