drm/amd/display: Optimizations for DML math

[why]
Conditionals in the DML basic math functions significantly impact mode
enumeration.

[how]
Remove conditionals for floor/ceil operations which are used frequently
in DML and add an assertion for invalid callers using zero granuality.
Fix existing callers that rely on 0 granularity.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_auto.c b/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_auto.c
index 41284e2..288d22a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_auto.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_auto.c
@@ -526,10 +526,10 @@ void mode_support_and_system_configuration(struct dcn_bw_internal_vars *v)
                                }
                                if (v->max_swath_height_c[k] > 0.0) {
                                        v->swath_width_granularity_c = 256.0 /dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / v->max_swath_height_c[k];
-                               }
-                               v->rounded_up_max_swath_size_bytes_c = (dcn_bw_ceil2(v->swath_width_yper_state[i][j][k] / 2.0 - 1.0, v->swath_width_granularity_c) + v->swath_width_granularity_c) * v->byte_per_pixel_in_detc[k] * v->max_swath_height_c[k];
-                               if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
-                                       v->rounded_up_max_swath_size_bytes_c =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
+                                       v->rounded_up_max_swath_size_bytes_c = (dcn_bw_ceil2(v->swath_width_yper_state[i][j][k] / 2.0 - 1.0, v->swath_width_granularity_c) + v->swath_width_granularity_c) * v->byte_per_pixel_in_detc[k] * v->max_swath_height_c[k];
+                                       if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
+                                               v->rounded_up_max_swath_size_bytes_c = dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
+                                       }
                                }
                                if (v->rounded_up_max_swath_size_bytes_y + v->rounded_up_max_swath_size_bytes_c <= v->det_buffer_size_in_kbyte * 1024.0 / 2.0) {
                                        v->swath_height_yper_state[i][j][k] = v->max_swath_height_y[k];
@@ -552,14 +552,14 @@ void mode_support_and_system_configuration(struct dcn_bw_internal_vars *v)
                                        v->lines_in_det_chroma = v->det_buffer_size_in_kbyte * 1024.0 / 3.0 / v->byte_per_pixel_in_dety[k] / (v->swath_width_yper_state[i][j][k] / 2.0);
                                }
                                v->effective_lb_latency_hiding_source_lines_luma =dcn_bw_min2(v->max_line_buffer_lines,dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_yper_state[i][j][k] /dcn_bw_max2(v->h_ratio[k], 1.0)), 1.0)) - (v->vtaps[k] - 1.0);
-                               v->effective_lb_latency_hiding_source_lines_chroma =dcn_bw_min2(v->max_line_buffer_lines,dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_yper_state[i][j][k] / 2.0 /dcn_bw_max2(v->h_ratio[k] / 2.0, 1.0)), 1.0)) - (v->vta_pschroma[k] - 1.0);
                                v->effective_detlb_lines_luma =dcn_bw_floor2(v->lines_in_det_luma +dcn_bw_min2(v->lines_in_det_luma * v->required_dispclk[i][j] * v->byte_per_pixel_in_dety[k] * v->pscl_factor[k] / v->return_bw_per_state[i], v->effective_lb_latency_hiding_source_lines_luma), v->swath_height_yper_state[i][j][k]);
-                               v->effective_detlb_lines_chroma =dcn_bw_floor2(v->lines_in_det_chroma +dcn_bw_min2(v->lines_in_det_chroma * v->required_dispclk[i][j] * v->byte_per_pixel_in_detc[k] * v->pscl_factor_chroma[k] / v->return_bw_per_state[i], v->effective_lb_latency_hiding_source_lines_chroma), v->swath_height_cper_state[i][j][k]);
                                if (v->byte_per_pixel_in_detc[k] == 0.0) {
                                        v->urgent_latency_support_us_per_state[i][j][k] = v->effective_detlb_lines_luma * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k] - v->effective_detlb_lines_luma * v->swath_width_yper_state[i][j][k] *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]);
                                }
                                else {
-                                       v->urgent_latency_support_us_per_state[i][j][k] =dcn_bw_min2(v->effective_detlb_lines_luma * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k] - v->effective_detlb_lines_luma * v->swath_width_yper_state[i][j][k] *dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]), v->effective_detlb_lines_chroma * (v->htotal[k] / v->pixel_clock[k]) / (v->v_ratio[k] / 2.0) - v->effective_detlb_lines_chroma * v->swath_width_yper_state[i][j][k] / 2.0 *dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]));
+                                       v->effective_lb_latency_hiding_source_lines_chroma = dcn_bw_min2(v->max_line_buffer_lines, dcn_bw_floor2(v->line_buffer_size / v->lb_bit_per_pixel[k] / (v->swath_width_yper_state[i][j][k] / 2.0 / dcn_bw_max2(v->h_ratio[k] / 2.0, 1.0)), 1.0)) - (v->vta_pschroma[k] - 1.0);
+                                       v->effective_detlb_lines_chroma = dcn_bw_floor2(v->lines_in_det_chroma + dcn_bw_min2(v->lines_in_det_chroma * v->required_dispclk[i][j] * v->byte_per_pixel_in_detc[k] * v->pscl_factor_chroma[k] / v->return_bw_per_state[i], v->effective_lb_latency_hiding_source_lines_chroma), v->swath_height_cper_state[i][j][k]);
+                                       v->urgent_latency_support_us_per_state[i][j][k] = dcn_bw_min2(v->effective_detlb_lines_luma * (v->htotal[k] / v->pixel_clock[k]) / v->v_ratio[k] - v->effective_detlb_lines_luma * v->swath_width_yper_state[i][j][k] * dcn_bw_ceil2(v->byte_per_pixel_in_dety[k], 1.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]), v->effective_detlb_lines_chroma * (v->htotal[k] / v->pixel_clock[k]) / (v->v_ratio[k] / 2.0) - v->effective_detlb_lines_chroma * v->swath_width_yper_state[i][j][k] / 2.0 * dcn_bw_ceil2(v->byte_per_pixel_in_detc[k], 2.0) / (v->return_bw_per_state[i] / v->no_of_dpp[i][j][k]));
                                }
                        }
                }
@@ -1146,10 +1146,10 @@ void display_pipe_configuration(struct dcn_bw_internal_vars *v)
                }
                if (v->maximum_swath_height_c > 0.0) {
                        v->swath_width_granularity_c = 256.0 /dcn_bw_ceil2(v->byte_per_pix_detc, 2.0) / v->maximum_swath_height_c;
-               }
-               v->rounded_up_max_swath_size_bytes_c = (dcn_bw_ceil2(v->swath_width / 2.0 - 1.0, v->swath_width_granularity_c) + v->swath_width_granularity_c) * v->byte_per_pix_detc * v->maximum_swath_height_c;
-               if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
-                       v->rounded_up_max_swath_size_bytes_c =dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
+                       v->rounded_up_max_swath_size_bytes_c = (dcn_bw_ceil2(v->swath_width / 2.0 - 1.0, v->swath_width_granularity_c) + v->swath_width_granularity_c) * v->byte_per_pix_detc * v->maximum_swath_height_c;
+                       if (v->source_pixel_format[k] == dcn_bw_yuv420_sub_10) {
+                               v->rounded_up_max_swath_size_bytes_c = dcn_bw_ceil2(v->rounded_up_max_swath_size_bytes_c, 256.0) + 256;
+                       }
                }
                if (v->rounded_up_max_swath_size_bytes_y + v->rounded_up_max_swath_size_bytes_c <= v->det_buffer_size_in_kbyte * 1024.0 / 2.0) {
                        v->swath_height_y[k] = v->maximum_swath_height_y;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_math.c b/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_math.c
index 07d18e7..cac7241 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_math.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_math.c
@@ -23,6 +23,7 @@
  *
  */
 
+#include "os_types.h"
 #include "dcn_calc_math.h"
 
 #define isNaN(number) ((number) != (number))
@@ -69,8 +70,8 @@ float dcn_bw_max2(const float arg1, const float arg2)
 
 float dcn_bw_floor2(const float arg, const float significance)
 {
-       if (significance == 0)
-               return 0;
+       ASSERT(significance != 0);
+
        return ((int) (arg / significance)) * significance;
 }
 float dcn_bw_floor(const float arg)
@@ -80,17 +81,14 @@ float dcn_bw_floor(const float arg)
 
 float dcn_bw_ceil(const float arg)
 {
-       float flr = dcn_bw_floor2(arg, 1);
-
-       return flr + 0.00001 >= arg ? arg : flr + 1;
+       return (int) (arg + 0.99999);
 }
 
 float dcn_bw_ceil2(const float arg, const float significance)
 {
-       float flr = dcn_bw_floor2(arg, significance);
-       if (significance == 0)
-               return 0;
-       return flr + 0.00001 >= arg ? arg : flr + significance;
+       ASSERT(significance != 0);
+
+       return ((int) (arg / significance + 0.99999)) * significance;
 }
 
 float dcn_bw_max3(float v1, float v2, float v3)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
index 63bbdf8..edd098c 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
@@ -4478,17 +4478,17 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
                                                locals->EffectiveLBLatencyHidingSourceLinesLuma),
                                                locals->SwathHeightYPerState[i][j][k]);
 
-                               locals->EffectiveDETLBLinesChroma = dml_floor(locals->LinesInDETChroma + dml_min(
-                                               locals->LinesInDETChroma * locals->RequiredDISPCLK[i][j] * locals->BytePerPixelInDETC[k] *
-                                               locals->PSCL_FACTOR_CHROMA[k] / locals->ReturnBWPerState[i][0],
-                                               locals->EffectiveLBLatencyHidingSourceLinesChroma),
-                                               locals->SwathHeightCPerState[i][j][k]);
 
                                if (locals->BytePerPixelInDETC[k] == 0) {
                                        locals->UrgentLatencySupportUsPerState[i][j][k] = locals->EffectiveDETLBLinesLuma * (locals->HTotal[k] / locals->PixelClock[k])
                                                        / locals->VRatio[k] - locals->EffectiveDETLBLinesLuma * locals->SwathWidthYPerState[i][j][k] *
                                                                dml_ceil(locals->BytePerPixelInDETY[k], 1) / (locals->ReturnBWPerState[i][0] / locals->NoOfDPP[i][j][k]);
                                } else {
+                                       locals->EffectiveDETLBLinesChroma = dml_floor(locals->LinesInDETChroma + dml_min(
+                                                       locals->LinesInDETChroma * locals->RequiredDISPCLK[i][j] * locals->BytePerPixelInDETC[k] *
+                                                       locals->PSCL_FACTOR_CHROMA[k] / locals->ReturnBWPerState[i][0],
+                                                       locals->EffectiveLBLatencyHidingSourceLinesChroma),
+                                                       locals->SwathHeightCPerState[i][j][k]);
                                        locals->UrgentLatencySupportUsPerState[i][j][k] = dml_min(
                                                locals->EffectiveDETLBLinesLuma * (locals->HTotal[k] / locals->PixelClock[k])
                                                / locals->VRatio[k] - locals->EffectiveDETLBLinesLuma * locals->SwathWidthYPerState[i][j][k] *

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index 8a7485e..d40d32e 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -806,10 +806,12 @@ static bool CalculatePrefetchSchedule(
 
        if (myPipe->SourceScan == dm_horz) {
                *swath_width_luma_ub = dml_ceil(SwathWidthY - 1, myPipe->BlockWidth256BytesY) + myPipe->BlockWidth256BytesY;
-               *swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, myPipe->BlockWidth256BytesC) + myPipe->BlockWidth256BytesC;
+               if (myPipe->BlockWidth256BytesC > 0)
+                       *swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, myPipe->BlockWidth256BytesC) + myPipe->BlockWidth256BytesC;
        } else {
                *swath_width_luma_ub = dml_ceil(SwathWidthY - 1, myPipe->BlockHeight256BytesY) + myPipe->BlockHeight256BytesY;
-               *swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, myPipe->BlockHeight256BytesC) + myPipe->BlockHeight256BytesC;
+               if (myPipe->BlockWidth256BytesC > 0)
+                       *swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, myPipe->BlockHeight256BytesC) + myPipe->BlockHeight256BytesC;
        }
 
        prefetch_bw_oto = (PrefetchSourceLinesY * *swath_width_luma_ub * dml_ceil(BytePerPixelDETY, 1) + PrefetchSourceLinesC * *swath_width_chroma_ub * dml_ceil(BytePerPixelDETC, 2)) / Tsw_oto;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
index b7fa003..c117a97 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
@@ -6322,10 +6322,6 @@ static void CalculateSwathWidth(
 
        for (k = 0; k < NumberOfActivePlanes; ++k) {
                enum odm_combine_mode MainPlaneODMCombine = 0;
-               surface_width_ub_l = dml_ceil(SurfaceWidthY[k], Read256BytesBlockWidthY[k]);
-               surface_height_ub_l = dml_ceil(SurfaceHeightY[k], Read256BytesBlockHeightY[k]);
-               surface_width_ub_c = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
-               surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
 
                if (SourceScan[k] != dm_vert) {
                        SwathWidthSingleDPPY[k] = ViewportWidth[k];
@@ -6365,8 +6361,6 @@ static void CalculateSwathWidth(
 
                surface_width_ub_l  = dml_ceil(SurfaceWidthY[k], Read256BytesBlockWidthY[k]);
                surface_height_ub_l = dml_ceil(SurfaceHeightY[k], Read256BytesBlockHeightY[k]);
-               surface_width_ub_c  = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
-               surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
 
                if (SourceScan[k] != dm_vert) {
                        MaximumSwathHeightY[k] = Read256BytesBlockHeightY[k];
@@ -6374,6 +6368,7 @@ static void CalculateSwathWidth(
                        swath_width_luma_ub[k] = dml_min(surface_width_ub_l, (long) dml_ceil(SwathWidthY[k] - 1,
                                        Read256BytesBlockWidthY[k]) + Read256BytesBlockWidthY[k]);
                        if (BytePerPixC[k] > 0) {
+                               surface_width_ub_c  = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
                                swath_width_chroma_ub[k] = dml_min(surface_width_ub_c, (long) dml_ceil(SwathWidthC[k] - 1,
                                                Read256BytesBlockWidthC[k]) + Read256BytesBlockWidthC[k]);
                        } else {
@@ -6385,6 +6380,7 @@ static void CalculateSwathWidth(
                        swath_width_luma_ub[k] = dml_min(surface_height_ub_l, (long) dml_ceil(SwathWidthY[k] - 1,
                                        Read256BytesBlockHeightY[k]) + Read256BytesBlockHeightY[k]);
                        if (BytePerPixC[k] > 0) {
+                               surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
                                swath_width_chroma_ub[k] = dml_min(surface_height_ub_c, (long) dml_ceil(SwathWidthC[k] - 1,
                                                Read256BytesBlockHeightC[k]) + Read256BytesBlockHeightC[k]);
                        } else {

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index d63b420..8753f94 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -6933,8 +6933,6 @@ static void CalculateSwathWidth(
                {
                int surface_width_ub_l = dml_ceil(SurfaceWidthY[k], Read256BytesBlockWidthY[k]);
                int surface_height_ub_l = dml_ceil(SurfaceHeightY[k], Read256BytesBlockHeightY[k]);
-               int surface_width_ub_c = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
-               int surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
 
 #ifdef __DML_VBA_DEBUG__
                dml_print("DML::%s: k=%d surface_width_ub_l=%0d\n", __func__, k, surface_width_ub_l);
@@ -6945,6 +6943,8 @@ static void CalculateSwathWidth(
                        MaximumSwathHeightC[k] = Read256BytesBlockHeightC[k];
                        swath_width_luma_ub[k] = dml_min(surface_width_ub_l, (int) dml_ceil(SwathWidthY[k] - 1, Read256BytesBlockWidthY[k]) + Read256BytesBlockWidthY[k]);
                        if (BytePerPixC[k] > 0) {
+                               int surface_width_ub_c = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
+
                                swath_width_chroma_ub[k] = dml_min(
                                                surface_width_ub_c,
                                                (int) dml_ceil(SwathWidthC[k] - 1, Read256BytesBlockWidthC[k]) + Read256BytesBlockWidthC[k]);
@@ -6956,6 +6956,8 @@ static void CalculateSwathWidth(
                        MaximumSwathHeightC[k] = Read256BytesBlockWidthC[k];
                        swath_width_luma_ub[k] = dml_min(surface_height_ub_l, (int) dml_ceil(SwathWidthY[k] - 1, Read256BytesBlockHeightY[k]) + Read256BytesBlockHeightY[k]);
                        if (BytePerPixC[k] > 0) {
+                               int surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
+
                                swath_width_chroma_ub[k] = dml_min(
                                                surface_height_ub_c,
                                                (int) dml_ceil(SwathWidthC[k] - 1, Read256BytesBlockHeightC[k]) + Read256BytesBlockHeightC[k]);

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
index fc4d747..503d9ed 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
@@ -7049,8 +7049,6 @@ static void CalculateSwathWidth(
                {
                int surface_width_ub_l = dml_ceil(SurfaceWidthY[k], Read256BytesBlockWidthY[k]);
                int surface_height_ub_l = dml_ceil(SurfaceHeightY[k], Read256BytesBlockHeightY[k]);
-               int surface_width_ub_c = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
-               int surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
 
 #ifdef __DML_VBA_DEBUG__
                dml_print("DML::%s: k=%d surface_width_ub_l=%0d\n", __func__, k, surface_width_ub_l);
@@ -7061,6 +7059,8 @@ static void CalculateSwathWidth(
                        MaximumSwathHeightC[k] = Read256BytesBlockHeightC[k];
                        swath_width_luma_ub[k] = dml_min(surface_width_ub_l, (int) dml_ceil(SwathWidthY[k] - 1, Read256BytesBlockWidthY[k]) + Read256BytesBlockWidthY[k]);
                        if (BytePerPixC[k] > 0) {
+                               int surface_width_ub_c = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
+
                                swath_width_chroma_ub[k] = dml_min(
                                                surface_width_ub_c,
                                                (int) dml_ceil(SwathWidthC[k] - 1, Read256BytesBlockWidthC[k]) + Read256BytesBlockWidthC[k]);
@@ -7072,6 +7072,8 @@ static void CalculateSwathWidth(
                        MaximumSwathHeightC[k] = Read256BytesBlockWidthC[k];
                        swath_width_luma_ub[k] = dml_min(surface_height_ub_l, (int) dml_ceil(SwathWidthY[k] - 1, Read256BytesBlockHeightY[k]) + Read256BytesBlockHeightY[k]);
                        if (BytePerPixC[k] > 0) {
+                               int surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
+
                                swath_width_chroma_ub[k] = dml_min(
                                                surface_height_ub_c,
                                                (int) dml_ceil(SwathWidthC[k] - 1, Read256BytesBlockHeightC[k]) + Read256BytesBlockHeightC[k]);

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
index 8f1c0e1..36e4a4a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
@@ -719,8 +719,8 @@ void dml32_CalculateSwathWidth(
 
        unsigned int surface_width_ub_l;
        unsigned int surface_height_ub_l;
-       unsigned int surface_width_ub_c;
-       unsigned int surface_height_ub_c;
+       unsigned int surface_width_ub_c = 0;
+       unsigned int surface_height_ub_c = 0;
 
 #ifdef __DML_VBA_DEBUG__
        dml_print("DML::%s: ForceSingleDPP = %d\n", __func__, ForceSingleDPP);
@@ -784,21 +784,6 @@ void dml32_CalculateSwathWidth(
 
                surface_width_ub_l  = dml_ceil(SurfaceWidthY[k], Read256BytesBlockWidthY[k]);
                surface_height_ub_l = dml_ceil(SurfaceHeightY[k], Read256BytesBlockHeightY[k]);
-               surface_width_ub_c  = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
-               surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
-
-#ifdef __DML_VBA_DEBUG__
-               dml_print("DML::%s: k=%d surface_width_ub_l=%0d\n", __func__, k, surface_width_ub_l);
-               dml_print("DML::%s: k=%d surface_height_ub_l=%0d\n", __func__, k, surface_height_ub_l);
-               dml_print("DML::%s: k=%d surface_width_ub_c=%0d\n", __func__, k, surface_width_ub_c);
-               dml_print("DML::%s: k=%d surface_height_ub_c=%0d\n", __func__, k, surface_height_ub_c);
-               dml_print("DML::%s: k=%d Read256BytesBlockWidthY=%0d\n", __func__, k, Read256BytesBlockWidthY[k]);
-               dml_print("DML::%s: k=%d Read256BytesBlockHeightY=%0d\n", __func__, k, Read256BytesBlockHeightY[k]);
-               dml_print("DML::%s: k=%d Read256BytesBlockWidthC=%0d\n", __func__, k, Read256BytesBlockWidthC[k]);
-               dml_print("DML::%s: k=%d Read256BytesBlockHeightC=%0d\n", __func__, k, Read256BytesBlockHeightC[k]);
-               dml_print("DML::%s: k=%d ViewportStationary=%0d\n", __func__, k, ViewportStationary[k]);
-               dml_print("DML::%s: k=%d DPPPerSurface=%0d\n", __func__, k, DPPPerSurface[k]);
-#endif
 
                if (!IsVertical(SourceRotation[k])) {
                        MaximumSwathHeightY[k] = Read256BytesBlockHeightY[k];
@@ -818,6 +803,7 @@ void dml32_CalculateSwathWidth(
                                                                Read256BytesBlockWidthY[k]);
                        }
                        if (BytePerPixC[k] > 0) {
+                               surface_width_ub_c  = dml_ceil(SurfaceWidthC[k], Read256BytesBlockWidthC[k]);
                                if (ViewportStationary[k] && DPPPerSurface[k] == 1) {
                                        swath_width_chroma_ub[k] = dml_min(surface_width_ub_c,
                                                        dml_floor(ViewportXStartC[k] + SwathWidthC[k] +
@@ -848,6 +834,7 @@ void dml32_CalculateSwathWidth(
                                                Read256BytesBlockHeightY[k]) + Read256BytesBlockHeightY[k]);
                        }
                        if (BytePerPixC[k] > 0) {
+                               surface_height_ub_c = dml_ceil(SurfaceHeightC[k], Read256BytesBlockHeightC[k]);
                                if (ViewportStationary[k] && DPPPerSurface[k] == 1) {
                                        swath_width_chroma_ub[k] = dml_min(surface_height_ub_c,
                                                        dml_floor(ViewportYStartC[k] + SwathWidthC[k] +
@@ -866,6 +853,16 @@ void dml32_CalculateSwathWidth(
                }
 
 #ifdef __DML_VBA_DEBUG__
+               dml_print("DML::%s: k=%d surface_width_ub_l=%0d\n", __func__, k, surface_width_ub_l);
+               dml_print("DML::%s: k=%d surface_height_ub_l=%0d\n", __func__, k, surface_height_ub_l);
+               dml_print("DML::%s: k=%d surface_width_ub_c=%0d\n", __func__, k, surface_width_ub_c);
+               dml_print("DML::%s: k=%d surface_height_ub_c=%0d\n", __func__, k, surface_height_ub_c);
+               dml_print("DML::%s: k=%d Read256BytesBlockWidthY=%0d\n", __func__, k, Read256BytesBlockWidthY[k]);
+               dml_print("DML::%s: k=%d Read256BytesBlockHeightY=%0d\n", __func__, k, Read256BytesBlockHeightY[k]);
+               dml_print("DML::%s: k=%d Read256BytesBlockWidthC=%0d\n", __func__, k, Read256BytesBlockWidthC[k]);
+               dml_print("DML::%s: k=%d Read256BytesBlockHeightC=%0d\n", __func__, k, Read256BytesBlockHeightC[k]);
+               dml_print("DML::%s: k=%d ViewportStationary=%0d\n", __func__, k, ViewportStationary[k]);
+               dml_print("DML::%s: k=%d DPPPerSurface=%0d\n", __func__, k, DPPPerSurface[k]);
                dml_print("DML::%s: k=%d swath_width_luma_ub=%0d\n", __func__, k, swath_width_luma_ub[k]);
                dml_print("DML::%s: k=%d swath_width_chroma_ub=%0d\n", __func__, k, swath_width_chroma_ub[k]);
                dml_print("DML::%s: k=%d MaximumSwathHeightY=%0d\n", __func__, k, MaximumSwathHeightY[k]);

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h b/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h
index 479d7d8..072bd05 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h
@@ -76,14 +76,9 @@ static inline double dml_floor(double a, double granularity)
 
 static inline double dml_round(double a)
 {
-       double round_pt = 0.5;
-       double ceil = dml_ceil(a, 1);
-       double floor = dml_floor(a, 1);
+       const double round_pt = 0.5;
 
-       if (a - floor >= round_pt)
-               return ceil;
-       else
-               return floor;
+       return dml_floor(a + round_pt, 1);
 }
 
 /* float