hc
2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf
kernel/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
....@@ -1868,7 +1868,10 @@
18681868 }
18691869
18701870 if (SurfaceTiling == dm_sw_linear) {
1871
- *dpte_row_height = dml_min(128, 1 << (unsigned int) dml_floor(dml_log2(PTEBufferSizeInRequests * *PixelPTEReqWidth / Pitch), 1));
1871
+ if (PTEBufferSizeInRequests == 0)
1872
+ *dpte_row_height = 1;
1873
+ else
1874
+ *dpte_row_height = dml_min(128, 1 << (unsigned int) dml_floor(dml_log2(PTEBufferSizeInRequests * *PixelPTEReqWidth / Pitch), 1));
18721875 *dpte_row_width_ub = (dml_ceil(((double) SwathWidth - 1) / *PixelPTEReqWidth, 1) + 1) * *PixelPTEReqWidth;
18731876 *PixelPTEBytesPerRow = *dpte_row_width_ub / *PixelPTEReqWidth * *PTERequestSize;
18741877 } else if (ScanDirection != dm_vert) {