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path: root/drivers/gpu/drm/amd/display/dc/link/link_validation.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/link_validation.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/link/link_validation.c69
1 files changed, 18 insertions, 51 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_validation.c b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
index 9a5010f86003..d4b7da526f0a 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_validation.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
@@ -30,6 +30,7 @@
*/
#include "link_validation.h"
#include "protocols/link_dp_capability.h"
+#include "protocols/link_dp_dpia_bw.h"
#include "resource.h"
#define DC_LOGGER_INIT(logger)
@@ -255,57 +256,6 @@ uint32_t dp_link_bandwidth_kbps(
return link_rate_per_lane_kbps * link_settings->lane_count / 10000 * total_data_bw_efficiency_x10000;
}
-uint32_t link_timing_bandwidth_kbps(const struct dc_crtc_timing *timing)
-{
- uint32_t bits_per_channel = 0;
- uint32_t kbps;
-
- if (timing->flags.DSC)
- return dc_dsc_stream_bandwidth_in_kbps(timing,
- timing->dsc_cfg.bits_per_pixel,
- timing->dsc_cfg.num_slices_h,
- timing->dsc_cfg.is_dp);
-
- switch (timing->display_color_depth) {
- case COLOR_DEPTH_666:
- bits_per_channel = 6;
- break;
- case COLOR_DEPTH_888:
- bits_per_channel = 8;
- break;
- case COLOR_DEPTH_101010:
- bits_per_channel = 10;
- break;
- case COLOR_DEPTH_121212:
- bits_per_channel = 12;
- break;
- case COLOR_DEPTH_141414:
- bits_per_channel = 14;
- break;
- case COLOR_DEPTH_161616:
- bits_per_channel = 16;
- break;
- default:
- ASSERT(bits_per_channel != 0);
- bits_per_channel = 8;
- break;
- }
-
- kbps = timing->pix_clk_100hz / 10;
- kbps *= bits_per_channel;
-
- if (timing->flags.Y_ONLY != 1) {
- /*Only YOnly make reduce bandwidth by 1/3 compares to RGB*/
- kbps *= 3;
- if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
- kbps /= 2;
- else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)
- kbps = kbps * 2 / 3;
- }
-
- return kbps;
-}
-
static bool dp_validate_mode_timing(
struct dc_link *link,
const struct dc_crtc_timing *timing)
@@ -394,3 +344,20 @@ enum dc_status link_validate_mode_timing(
return DC_OK;
}
+
+bool link_validate_dpia_bandwidth(const struct dc_stream_state *stream, const unsigned int num_streams)
+{
+ bool ret = true;
+ int bw_needed[MAX_DPIA_NUM];
+ struct dc_link *link[MAX_DPIA_NUM];
+
+ if (!num_streams || num_streams > MAX_DPIA_NUM)
+ return ret;
+
+ for (uint8_t i = 0; i < num_streams; ++i) {
+
+ link[i] = stream[i].link;
+ bw_needed[i] = dc_bandwidth_in_kbps_from_timing(&stream[i].timing);
+ }
+ return ret;
+}